changed something.

fixes 1 edge-case, but the east bug is still goofed

.config/lite-xl/init.lua

@@ -0,0 +1,6 @@
+local core = require "core"
+local config = require "config"
+
+
+config.ignore_files = { "^build$", "^buildSrc$", "^gradle$", "^\.kotlin$", "^\.idea$", "^\.vscode$", "^\.gradle$", "^\.architectury-transformer$" }
+

.github/workflows/build.yml

@@ -4,7 +4,8 @@
 # against bad commits.
 
 name: build
-on: [pull_request, push]
+#on: [pull_request, push]
+on: []
 
 jobs:
   build:

.gitignore

@@ -453,3 +453,9 @@ FodyWeavers.xsd
 # JetBrains Rider
 *.sln.iml
 /.kotlin/
+
+
+/versions/*/src
+
+.lite_project.lua
+.config/lite-xl/**

.lite_project.lua

@@ -0,0 +1,37 @@
+-- Put project's module settings here.
+-- This module will be loaded when opening a project, after the user module
+-- configuration.
+-- It will be automatically reloaded when saved.
+
+local config = require "core.config"
+
+config.ignore_files = {"^buildSrc$", "^gradle$", "\\.kotlin", "\\.idea", "\\.vscode", "\\.gradle", "\\.architectury-transformer" }
+
+
+-- you can add some patterns to ignore files within the project
+-- config.ignore_files = {"^%.", <some-patterns>}
+
+-- Patterns are normally applied to the file's or directory's name, without
+-- its path. See below about how to apply filters on a path.
+--
+-- Here some examples:
+--
+-- "^%." matches any file of directory whose basename begins with a dot.
+--
+-- When there is an '/' or a '/$' at the end, the pattern will only match
+-- directories. When using such a pattern a final '/' will be added to the name
+-- of any directory entry before checking if it matches.
+--
+-- "^%.git/" matches any directory named ".git" anywhere in the project.
+--
+-- If a "/" appears anywhere in the pattern (except when it appears at the end or
+-- is immediately followed by a '$'), then the pattern will be applied to the full
+-- path of the file or directory. An initial "/" will be prepended to the file's
+-- or directory's path to indicate the project's root.
+--
+-- "^/node_modules/" will match a directory named "node_modules" at the project's root.
+-- "^/build.*/" will match any top level directory whose name begins with "build".
+-- "^/subprojects/.+/" will match any directory inside a top-level folder named "subprojects".
+
+-- You may activate some plugins on a per-project basis to override the user's settings.
+-- config.plugins.trimwitespace = true

LICENSE

@@ -1,121 +1,504 @@
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+an explicit geographical distribution limitation excluding those countries,
+so that distribution is permitted only in or among countries not thus
+excluded.  In such case, this License incorporates the limitation as if
+written in the body of this License.
+
+  13. The Free Software Foundation may publish revised and/or new
+versions of the Lesser General Public License from time to time.
+Such new versions will be similar in spirit to the present version,
+but may differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Library
+specifies a version number of this License which applies to it and
+"any later version", you have the option of following the terms and
+conditions either of that version or of any later version published by
+the Free Software Foundation.  If the Library does not specify a
+license version number, you may choose any version ever published by
+the Free Software Foundation.
+
+  14. If you wish to incorporate parts of the Library into other free
+programs whose distribution conditions are incompatible with these,
+write to the author to ask for permission.  For software which is
+copyrighted by the Free Software Foundation, write to the Free
+Software Foundation; we sometimes make exceptions for this.  Our
+decision will be guided by the two goals of preserving the free status
+of all derivatives of our free software and of promoting the sharing
+and reuse of software generally.
+
+                            NO WARRANTY
+
+  15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
+WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
+EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
+OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
+KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
+LIBRARY IS WITH YOU.  SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
+WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
+AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
+FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
+CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
+LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
+RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
+FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
+SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGES.
+
+                     END OF TERMS AND CONDITIONS
+
+           How to Apply These Terms to Your New Libraries
+
+  If you develop a new library, and you want it to be of the greatest
+possible use to the public, we recommend making it free software that
+everyone can redistribute and change.  You can do so by permitting
+redistribution under these terms (or, alternatively, under the terms of the
+ordinary General Public License).
+
+  To apply these terms, attach the following notices to the library.  It is
+safest to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the library's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
+    USA
+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the library, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James Random
+  Hacker.
+
+  <signature of Ty Coon>, 1 April 1990
+  Ty Coon, President of Vice
+
+That's all there is to it!

README.md

@@ -8,8 +8,7 @@ the mod for that version!
 Also, try reading about how stonecutter's conditional macros work (those can be seen as the `//?` statements in the code).
 Stonecutter automatically comments and uncomments them when you switch between versions or loaders, you shouldn't do it yourself.
 
-The minecraft version this mod is currently being developed on is 1.21.11 neoforge or fabric. Although the project stonecutter.gradle.kts
-is currently using 1.21.9-fabric, you can easily change it with the gradle task.
+The minecraft version this mod is currently being developed on is 1.21.11 neoforge or fabric.
 
 The recommended IDE for this is IntelliJ IDEA 2026.1, and the JDK used is Eclipse Temurin 25.0.2 (from Adoptium), although
 you should be able to use any other build of OpenJDK 26.

TODO.md

@@ -0,0 +1,35 @@
+# Networking
+> All that is left is optimization
+
+## Mergeable device nodes
+
+For optimization of screen grouping and cables, we should add a system that allows merging nodes
+
+## Copy the networking optimizations of OC
+> https://github.com/MightyPirates/OpenComputers/blob/master-MC1.7.10/src/main/scala/li/cil/oc/server/network/Network.scala
+
+We should implement this, as it not only makes behavior match better, but also optimizes
+it a lot. We do need to replace the NEIGHBORS rule with implementing the SOME visibility.
+A direct port is not needed, just taking heavy inspiration from OC.
+
+## Optimize power balancing
+
+Use a smarter algorithm to prevent N storage nodes from iterating N^2 nodes each tick
+to balance power.
+
+# Computation
+> Pretty important for a computer mod
+
+## JNI
+
+We need the JNI system so we can salvage our hard labor thrown into NeoNucleus.
+Also because it is a capable engine and has a good API for architectures, and NCL is very capable.
+
+## Worker threads
+
+Computers need worker threads for running non-synchronized code, because otherwise we're cooked
+
+## Entities as machines
+
+Aside from blocks like cases and robots, we should also support entities like drones.
+Not only for OC parity, but also as addons would def love that.

build.gradle.kts

@@ -11,6 +11,15 @@ plugins {
 val minecraft = stonecutter.current.version
 val loader = loom.platform.get().name.lowercase()
 
+fun minecraftVersionToNum(ver: String): Int {
+    val parts = ver.split(".")
+    if(parts.size == 2) {
+        // 26.1 and above
+        return parts[0].toInt() * 10000 + parts[1].toInt()
+    }
+    return parts[1].toInt() * 100 + parts[2].toInt()
+}
+
 version = "${mod.version}+$minecraft"
 group = mod.group
 base {
@@ -21,6 +30,7 @@ architectury.common(stonecutter.tree.branches.mapNotNull {
     if (stonecutter.current.project !in it) null
     else it.prop("loom.platform")
 })
+
 repositories {
     maven("https://maven.neoforged.net/releases/")
 
@@ -32,12 +42,41 @@ repositories {
         name = "Kotlin for Forge"
         setUrl("https://thedarkcolour.github.io/KotlinForForge/")
     }
+    maven {
+        name = "ParchmentMC"
+        setUrl("https://maven.parchmentmc.org")
+    }
 }
 dependencies {
     minecraft("com.mojang:minecraft:$minecraft")
-    mappings(loom.officialMojangMappings())
+//    mappings(loom.officialMojangMappings())
 
-    modApi("dev.architectury:architectury:${mod.dep("architectury_version")}")
+    mappings(loom.layered(){
+        var date = ""
+        when (minecraft) {
+            "1.20.1" -> date = "2023.09.03"
+            "1.20.4" -> date = "2024.04.14"
+            "1.21.1" -> date = "2024.11.17"
+            "1.21.9" -> date = "2025.10.05"
+            "1.21.11" -> date = "2025.12.20"
+            else -> date="idk lol 67"
+        }
+
+        officialMojangMappings() // TODO: versions
+        parchment("org.parchmentmc.data:parchment-${minecraft}:${date}@zip")
+    })
+    var archversion = "idk"
+    when(minecraft) { // NOTE: add more entries if you want to add more versions
+        "1.20.1" -> archversion = "9.2.14"
+        "1.20.4" -> archversion = "11.1.17"
+        "1.21.1" -> archversion = "13.0.8"
+        "1.21.9" -> archversion = "18.0.5"
+        else     -> archversion = "19.0.1" 
+    }
+
+    // modImplementation("dev.architectury:architectury:$rootProject.architectury_api_version")
+    // modImplementation("dev.architectury:architectury:${archversion}")
+    modImplementation("dev.architectury:architectury:${archversion}")
     if (loader == "fabric") {
         modImplementation("net.fabricmc:fabric-loader:${mod.dep("fabric_loader")}")
 //        mappings("net.fabricmc:yarn:$minecraft+build.${mod.dep("yarn_build")}:v2")
@@ -45,16 +84,26 @@ dependencies {
         //some features (like automatic resource loading from non vanilla namespaces) work only with fabric API installed
         //for example translations from assets/modid/lang/en_us.json won't be working, same stuff with textures
         //but we keep runtime only to not accidentally depend on fabric's api, because it doesn't exist in neo/forge
-        modRuntimeOnly("net.fabricmc.fabric-api:fabric-api:${mod.dep("fabric_version")}")
+        //modRuntimeOnly("net.fabricmc.fabric-api:fabric-api:${mod.dep("fabric_version")}")
+        modImplementation("net.fabricmc.fabric-api:fabric-api:${mod.dep("fabric_version")}")
         modImplementation("net.fabricmc:fabric-language-kotlin:1.13.10+kotlin.2.3.20")
-        modApi("dev.architectury:architectury-fabric:${mod.dep("architectury_version")}")
+        modApi("dev.architectury:architectury-fabric:${archversion}")
+        fun getTeamRebornEnergy(): String {
+            val curVer = minecraftVersionToNum(minecraft)
+            if (curVer < minecraftVersionToNum("1.20.5")) { return "3.0.0" }
+            if (curVer < minecraftVersionToNum("1.21.0")) { return "4.0.0" }
+            if (curVer < minecraftVersionToNum("1.21.5")) { return "4.1.0" }
+            if (curVer < minecraftVersionToNum("26.1")) { return "4.2.0" }
+            return "5.0.0"
+        }
+        modApi("teamreborn:energy:${getTeamRebornEnergy()}")
     }
     if (loader == "forge") {
         "forge"("net.minecraftforge:forge:${minecraft}-${mod.dep("forge_loader")}")
         //implementation("thedarkcolour:kotlinforforge:1.16.0")
 //        mappings("net.fabricmc:yarn:$minecraft+build.${mod.dep("yarn_build")}:v2")
 
-        modApi("dev.architectury:architectury-forge:${mod.dep("architectury_version")}")
+        modApi("dev.architectury:architectury-forge:${archversion}")
         "io.github.llamalad7:mixinextras-forge:${mod.dep("mixin_extras")}".let {
             implementation(it)
             include(it)
@@ -69,8 +118,10 @@ dependencies {
 //            }
 //        })
 
-        modApi("dev.architectury:architectury-forge:${mod.dep("architectury_version")}")
+        if (minecraft=="1.21.9" || minecraft=="1.21.11") modApi("dev.architectury:architectury-neoforge:${archversion}")
+        else modApi("dev.architectury:architectury-forge:${archversion}") // NOTE: this could be wrong
         implementation("thedarkcolour:kotlinforforge-neoforge:6.0.0")
+
     }
 }
 buildscript {
@@ -225,3 +276,14 @@ tasks.build {
     group = "versioned"
     description = "Must run through 'chiseledBuild'"
 }
+if (loader == "fabric") {
+    fabricApi {
+        if (minecraftVersionToNum(minecraft) > minecraftVersionToNum("1.21.4")) {
+            configureDataGeneration() {
+                client = true
+            }
+        } else {
+            configureDataGeneration()
+        }
+    }
+}

gradle.properties

@@ -24,7 +24,6 @@ mod.mc_targets=[VERSIONED]
 deps.mixin_extras=0.4.1
 deps.fabric_loader=0.18.3
 deps.fabric_version=[VERSIONED]
-deps.architectury_version=9.1.12
 
 deps.forge_loader=[VERSIONED]
 deps.neoforge_loader=[VERSIONED]

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.0-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -1,78 +1,128 @@
-#!/usr/bin/env sh
+#!/bin/sh
+
+#
+# Copyright © 2015 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
 
 ##############################################################################
-##
-##  Gradle start up script for UN*X
-##
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
 ##############################################################################
 
 # Attempt to set APP_HOME
+
 # Resolve links: $0 may be a link
-PRG="$0"
-# Need this for relative symlinks.
-while [ -h "$PRG" ] ; do
-    ls=`ls -ld "$PRG"`
-    link=`expr "$ls" : '.*-> \(.*\)$'`
-    if expr "$link" : '/.*' > /dev/null; then
-        PRG="$link"
-    else
-        PRG=`dirname "$PRG"`"/$link"
-    fi
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
 done
-SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >/dev/null
-APP_HOME="`pwd -P`"
-cd "$SAVED" >/dev/null
 
-APP_NAME="Gradle"
-APP_BASE_NAME=`basename "$0"`
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD="maximum"
+MAX_FD=maximum
 
 warn () {
     echo "$*"
-}
+} >&2
 
 die () {
     echo
     echo "$*"
     echo
     exit 1
-}
+} >&2
 
 # OS specific support (must be 'true' or 'false').
 cygwin=false
 msys=false
 darwin=false
 nonstop=false
-case "`uname`" in
-  CYGWIN* )
-    cygwin=true
-    ;;
-  Darwin* )
-    darwin=true
-    ;;
-  MINGW* )
-    msys=true
-    ;;
-  NONSTOP* )
-    nonstop=true
-    ;;
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
 esac
 
-CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
 
 # Determine the Java command to use to start the JVM.
 if [ -n "$JAVA_HOME" ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
         # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD="$JAVA_HOME/jre/sh/java"
+        JAVACMD=$JAVA_HOME/jre/sh/java
     else
-        JAVACMD="$JAVA_HOME/bin/java"
+        JAVACMD=$JAVA_HOME/bin/java
     fi
     if [ ! -x "$JAVACMD" ] ; then
         die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
@@ -81,96 +131,118 @@ Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
     fi
 else
-    JAVACMD="java"
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
+    fi
 fi
 
 # Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
-    MAX_FD_LIMIT=`ulimit -H -n`
-    if [ $? -eq 0 ] ; then
-        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
-            MAX_FD="$MAX_FD_LIMIT"
-        fi
-        ulimit -n $MAX_FD
-        if [ $? -ne 0 ] ; then
-            warn "Could not set maximum file descriptor limit: $MAX_FD"
-        fi
-    else
-        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
-    fi
-fi
-
-# For Darwin, add options to specify how the application appears in the dock
-if $darwin; then
-    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
-fi
-
-# For Cygwin, switch paths to Windows format before running java
-if $cygwin ; then
-    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
-    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
-    JAVACMD=`cygpath --unix "$JAVACMD"`
-
-    # We build the pattern for arguments to be converted via cygpath
-    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
-    SEP=""
-    for dir in $ROOTDIRSRAW ; do
-        ROOTDIRS="$ROOTDIRS$SEP$dir"
-        SEP="|"
-    done
-    OURCYGPATTERN="(^($ROOTDIRS))"
-    # Add a user-defined pattern to the cygpath arguments
-    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
-        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
-    fi
-    # Now convert the arguments - kludge to limit ourselves to /bin/sh
-    i=0
-    for arg in "$@" ; do
-        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
-        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
-
-        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
-            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
-        else
-            eval `echo args$i`="\"$arg\""
-        fi
-        i=$((i+1))
-    done
-    case $i in
-        (0) set -- ;;
-        (1) set -- "$args0" ;;
-        (2) set -- "$args0" "$args1" ;;
-        (3) set -- "$args0" "$args1" "$args2" ;;
-        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
 fi
 
-# Escape application args
-save () {
-    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
-    echo " "
-}
-APP_ARGS=$(save "$@")
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
 
-# Collect all arguments for the java command, following the shell quoting and substitution rules
-if $JAVACMD --add-opens java.base/java.lang=ALL-UNNAMED -version ; then
-    DEFAULT_JVM_OPTS="--add-opens java.base/java.lang=ALL-UNNAMED $DEFAULT_JVM_OPTS"
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
 fi
 
-eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
 
-# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
-if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
-  cd "$(dirname "$0")"
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
 fi
 
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
 exec "$JAVACMD" "$@"

gradlew.bat

@@ -1,4 +1,22 @@
-@if "%DEBUG%" == "" @echo off
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
+
+@if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
 @rem  Gradle startup script for Windows
@@ -9,25 +27,29 @@
 if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
 
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
+if %ERRORLEVEL% equ 0 goto execute
 
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
@@ -35,48 +57,35 @@ goto fail
 set JAVA_HOME=%JAVA_HOME:"=%
 set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
-if exist "%JAVA_EXE%" goto init
+if exist "%JAVA_EXE%" goto execute
 
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
-:init
-@rem Get command-line arguments, handling Windows variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-
-:win9xME_args
-@rem Slurp the command line arguments.
-set CMD_LINE_ARGS=
-set _SKIP=2
-
-:win9xME_args_slurp
-if "x%~1" == "x" goto execute
-
-set CMD_LINE_ARGS=%*
-
 :execute
 @rem Setup the command line
 
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
 
 @rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
 
 :end
 @rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+if %ERRORLEVEL% equ 0 goto mainEnd
 
 :fail
 rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
 rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
 
 :mainEnd
 if "%OS%"=="Windows_NT" endlocal

settings.gradle.kts

@@ -23,7 +23,7 @@ stonecutter {
         }
         //i would recommend to use neoforge for mc > 1.20.1, i haven't tested neocomputers for forge on versions higher than that
         //mc("fabric","1.20.1","1.20.4", "1.21.1", "1.21.3", "1.21.4", "1.21.5", "1.21.6", "1.21.7", "1.21.8", "1.21.9", "1.21.10", "1.21.11")
-        mc("fabric", "1.20.1", "1.20.4", "1.21.9", "1.21.11")
+        mc("fabric", "1.20.1", "1.20.4", "1.21.1", "1.21.9", "1.21.11")
         mc("forge", "1.20.1")
         //WARNING: neoforge uses mods.toml instead of neoforge.mods.toml for versions 1.20.4 (?) and earlier
         //mc("neoforge", "1.20.4", "1.21.1", "1.21.3", "1.21.4", "1.21.5", "1.21.6", "1.21.7", "1.21.8", "1.21.9", "1.21.10", "1.21.11")

src/main/java/org/neoflock/neocomputers/platforms/fabric/client/NeoComputersFabricClient.java

@@ -0,0 +1,42 @@
+package org.neoflock.neocomputers.platforms.fabric.client;
+
+import net.fabricmc.api.ClientModInitializer;
+import net.fabricmc.fabric.api.client.model.loading.v1.ModelLoadingPlugin;
+import net.fabricmc.fabric.api.client.rendering.v1.ColorProviderRegistry;
+import net.minecraft.client.color.item.ItemColor;
+import net.minecraft.client.color.item.ItemColors;
+import net.minecraft.client.renderer.blockentity.BlockEntityRenderers;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.item.DyeColor;
+import net.minecraft.world.level.ItemLike;
+import org.neoflock.neocomputers.NeoComputers;
+import org.neoflock.neocomputers.block.Blocks;
+import org.neoflock.neocomputers.block.CableBlock;
+import org.neoflock.neocomputers.entity.BlockEntities;
+import org.neoflock.neocomputers.entity.render.*;
+import org.neoflock.neocomputers.item.Items;
+import org.neoflock.neocomputers.platforms.fabric.client.model.ModelLoader;
+
+public class NeoComputersFabricClient implements ClientModInitializer {
+    @Override
+    public void onInitializeClient() {
+        ModelLoadingPlugin.register(new ModelLoader());
+        BlockEntityRenderers.register(BlockEntities.INSTANCE.getSCREEN_ENTITY().get(), ScreenEntityRenderer::new); // TODO: put this in common
+        BlockEntityRenderers.register(BlockEntities.INSTANCE.getCASE_ENTITY().get(), CaseEntityRenderer::new);
+        BlockEntityRenderers.register(BlockEntities.INSTANCE.getRELAY_ENTITY().get(), RelayEntityRenderer::new);
+        BlockEntityRenderers.register(BlockEntities.INSTANCE.getROBOT_ENTITY().get(), RobotEntityRenderer::new);
+        BlockEntityRenderers.register(BlockEntities.INSTANCE.getRACK_ENTITY().get(), RackEntityRenderer::new);
+
+        ColorProviderRegistry.BLOCK.register((state, world, pos, index) -> {
+            if (index == 0) {
+                return state.getValue(CableBlock.Companion.getCOLOR()).getTextureDiffuseColor();
+            } else {
+                return 0xFFFFFF;
+            }
+        }, Blocks.INSTANCE.getCABLE_BLOCK().get());
+
+        ColorProviderRegistry.ITEM.register((stack, index)-> {
+            return DyeColor.LIGHT_GRAY.getTextureDiffuseColor();
+        }, Items.INSTANCE.getITEMS().getRegistrar().get(ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "cable")));
+    }
+}

src/main/java/org/neoflock/neocomputers/platforms/fabric/client/model/FabricModelWrapper.java

@@ -0,0 +1,59 @@
+package org.neoflock.neocomputers.platforms.fabric.client.model;
+
+import kotlin.jvm.functions.Function1;
+import net.fabricmc.fabric.api.renderer.v1.model.FabricBakedModel;
+import net.fabricmc.fabric.api.renderer.v1.render.RenderContext;
+import net.fabricmc.fabric.impl.renderer.VanillaModelEncoder;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.texture.TextureAtlas;
+import net.minecraft.client.renderer.texture.TextureAtlasSprite;
+import net.minecraft.client.resources.model.*;
+import net.minecraft.core.BlockPos;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.util.RandomSource;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.BlockAndTintGetter;
+import net.minecraft.world.level.block.state.BlockState;
+import org.jetbrains.annotations.Nullable;
+import org.neoflock.neocomputers.NeoComputers;
+import org.neoflock.neocomputers.block.model.AbstractModel;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.function.Function;
+import java.util.function.Supplier;
+
+public class FabricModelWrapper implements FabricBakedModel, UnbakedModel {
+    private AbstractModel model;
+
+    public FabricModelWrapper(AbstractModel model) {
+        this.model = model;
+    }
+
+    @Override
+    public void emitBlockQuads(BlockAndTintGetter blockView, BlockState state, BlockPos pos, Supplier<RandomSource> randomSupplier, RenderContext context) {
+        VanillaModelEncoder.emitBlockQuads(model, state, randomSupplier, context);
+    }
+
+    @Override
+    public void emitItemQuads(ItemStack stack, Supplier<RandomSource> randomSupplier, RenderContext context) {
+        VanillaModelEncoder.emitItemQuads(model, null, randomSupplier, context);
+    }
+
+    @Override
+    public Collection<ResourceLocation> getDependencies() {
+        return List.of();
+    }
+
+    @Override
+    public void resolveParents(Function<ResourceLocation, UnbakedModel> resolver) {
+    }
+
+    @Override
+    public @Nullable BakedModel bake(ModelBaker baker, Function<Material, TextureAtlasSprite> spriteGetter, ModelState state) {
+//        NeoComputers.INSTANCE.getLOGGER().info("{}", spriteGetter.apply(new Material()));
+        model._bake(spriteGetter);
+//        model.bake((Function1<? super ResourceLocation, ? extends TextureAtlasSprite>) Minecraft.getInstance().getTextureAtlas(TextureAtlas.LOCATION_BLOCKS));
+        return model;
+    }
+}

src/main/java/org/neoflock/neocomputers/platforms/fabric/client/model/ModelLoader.java

@@ -0,0 +1,23 @@
+package org.neoflock.neocomputers.platforms.fabric.client.model;
+
+import com.mojang.blaze3d.vertex.VertexConsumer;
+import net.fabricmc.fabric.api.client.model.loading.v1.ModelLoadingPlugin;
+import net.minecraft.client.resources.model.ModelResourceLocation;
+import net.minecraft.resources.ResourceLocation;
+import org.neoflock.neocomputers.NeoComputers;
+import org.neoflock.neocomputers.block.model.RobotModel;
+
+public class ModelLoader implements ModelLoadingPlugin {
+    public static final ResourceLocation ROBOT = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "robot");
+
+    @Override
+    public void onInitializeModelLoader(Context pluginContext) {
+        pluginContext.modifyModelOnLoad().register((original, context) -> {
+           final ModelResourceLocation id = context.topLevelId();
+           if (id != null && id.id().equals(ROBOT)) {
+               return new FabricModelWrapper(new RobotModel());
+           }
+            return original;
+        });
+    }
+}

src/main/java/org/neoflock/neocomputers/platforms/neoforge/NeoComputersNeoForge.java

@@ -1,8 +1,7 @@
 //? if neoforge {
-/*package org.neoflock.neocomputers.neocomputers.platforms.neoforge;
+/*package org.neoflock.neocomputers.platforms.neoforge;
 
 import org.neoflock.neocomputers.ConfigScreen;
-import org.neoflock.neocomputers.NeoComputersInit;
 import org.neoflock.neocomputers.ModPlatform;
 import net.neoforged.fml.ModList;
 import net.neoforged.fml.ModLoadingContext;

src/main/kotlin/org/neoflock/neocomputers/NeoComputers.kt

@@ -1,19 +1,164 @@
 package org.neoflock.neocomputers
 
+import dev.architectury.event.events.client.ClientLifecycleEvent
+import dev.architectury.event.events.common.LifecycleEvent
+import dev.architectury.event.events.common.PlayerEvent
+import dev.architectury.event.events.common.TickEvent
+import dev.architectury.networking.NetworkManager
+import dev.architectury.platform.Platform
+import net.minecraft.resources.ResourceLocation
+import org.neoflock.neocomputers.block.Blocks
+import org.neoflock.neocomputers.entity.BlockEntities
+import org.neoflock.neocomputers.gui.menu.Menus
+import dev.architectury.utils.Env
+import dev.architectury.utils.EnvExecutor
+import net.minecraft.client.Minecraft
+import net.minecraft.server.level.ServerPlayer
+import org.neoflock.neocomputers.block.DeviceBlockEntity
+import org.neoflock.neocomputers.gui.render.ScreenRenderer
+import org.neoflock.neocomputers.gui.widget.ComponentRoles
+import org.neoflock.neocomputers.item.Items
+import org.neoflock.neocomputers.item.Tabs
+import org.neoflock.neocomputers.network.DeviceNode
+import org.neoflock.neocomputers.network.Networking
+import org.neoflock.neocomputers.network.NodeSynchronizer
+import org.neoflock.neocomputers.sounds.Sounds
+import org.neoflock.neocomputers.utils.FontProvider
+import org.neoflock.neocomputers.utils.GenericContainerScreen
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
 
-
 object NeoComputers {
     const val MODID: String = "neocomputers"
     val LOGGER: Logger = LoggerFactory.getLogger("NeoComputers")
     var PLATFORM: ModPlatform? = null
 
+//    val BlockEntityRenderType: RenderType = RenderType.create(
+//        "nc_blockentities",
+//        DefaultVertexFormat.POSITION_TEX,
+//        VertexFormat.Mode.QUADS,
+//        0xc000, RenderType.CompositeState.builder().setShaderState(RenderStateShard.POSITION_TEX_SHADER).createCompositeState(false)) // TODO: figure out correct buffer size and composite state
+
+
     fun entrypoint(platform: ModPlatform?) {
         PLATFORM = platform
+
+        Blocks.BLOCKS.register()
+        Blocks.registerBlockItems()
+        Items.ITEMS.register()
+        BlockEntities.BLOCKENTITIES.register()
+        BlockEntities.registerPowerBlocks()
+        Menus.MENUS.register()
+        Tabs.TABS.register()
+        Sounds.SOUNDS.register()
+        ComponentRoles.mapDefaultTextures()
+        // I don't know why architectury wants two lambdas but whatever
+        EnvExecutor.runInEnv(Env.CLIENT) {{
+            ClientLifecycleEvent.CLIENT_SETUP.register {
+                Menus.registerScreens()
+                Networking.allNodes.remove()
+                Networking.wirelessNodes.remove()
+                Networking.channels.remove()
+            }
+            ClientLifecycleEvent.CLIENT_STARTED.register {
+                FontProvider.load(ResourceLocation.fromNamespaceAndPath(MODID, "font/unscii.hex"))
+            }
+
+            ClientLifecycleEvent.CLIENT_STOPPING.register {
+                ScreenRenderer.cleanUnboundTex()
+            }
+        }}
+
+        TickEvent.SERVER_POST.register {
+            Networking.tickAllNodes()
+            NodeSynchronizer.syncScreens()
+        }
+
+        TickEvent.PLAYER_POST.register {
+            Sounds.tickCustomSounds()
+        }
+
+        LifecycleEvent.SERVER_STARTING.register {
+            Networking.allNodes.remove()
+            Networking.wirelessNodes.remove()
+            Networking.channels.remove()
+        }
+
+        PlayerEvent.CLOSE_MENU.register {
+            player, menu ->
+            if(player is ServerPlayer) NodeSynchronizer.playerScreenClosed(player)
+        }
+
+        PlayerEvent.PLAYER_QUIT.register {
+            player ->
+            NodeSynchronizer.playerScreenClosed(player)
+        }
+
+        // networking has no way to define a C2S packet type, so we need the listener on both
+        // however, defining it separately on both breaks both ends
+        // so we define it once, but on both platforms
+        if(Platform.getEnvironment() == Env.CLIENT || Platform.getEnvironment() == Env.SERVER) {
+            NetworkManager.registerReceiver(NetworkManager.c2s(),NodeSynchronizer.ScreenDataPayload.TYPE, NodeSynchronizer.ScreenDataPayload.CODEC, {
+                    packet, ctx ->
+                val player = ctx.player
+                if(player is ServerPlayer) {
+                    val ent = NodeSynchronizer.screenMap[player]
+                    if(ent is DeviceNode) {
+                        ent.processScreenInteraction(player, packet.buffer)
+                    }
+                }
+            })
+
+            NetworkManager.registerReceiver(NetworkManager.c2s(),NodeSynchronizer.DeviceBlockStateRequest.TYPE, NodeSynchronizer.DeviceBlockStateRequest.CODEC, {
+                    packet, ctx ->
+                val player = ctx.player
+                val level = player.level()
+                val dist = packet.blockPos.center.distanceTo(player.position())
+                if(player is ServerPlayer && dist <= NodeSynchronizer.MAX_STATE_DISTANCE_ALLOWED) {
+                    val ent = level.getBlockEntity(packet.blockPos)
+                    if(ent is DeviceBlockEntity) {
+                        ent.sendStateToPlayer(player)
+                    }
+                }
+            })
+        }
+
+        // we have to do this because the datagen task runs in the physical server
+        EnvExecutor.runInEnv(Env.CLIENT) {{
+            NetworkManager.registerReceiver(NetworkManager.s2c(),NodeSynchronizer.DeviceBlockStatePayload.TYPE, NodeSynchronizer.DeviceBlockStatePayload.CODEC, {
+                    packet, ctx ->
+                val level = ctx.player.level()
+                val ent = level.getBlockEntity(packet.blockPos)
+                if(ent is DeviceBlockEntity) {
+                    ent.processCommits(packet.buffers)
+                }
+            })
+
+            NetworkManager.registerReceiver(NetworkManager.s2c(),NodeSynchronizer.ScreenPayload.TYPE, NodeSynchronizer.ScreenPayload.CODEC, {
+                    packet, ctx ->
+                val scr = Minecraft.getInstance().screen
+                if(scr is GenericContainerScreen<*>) {
+                    scr.processScreenStatePacket(packet.buffer)
+                }
+            })
+
+            NetworkManager.registerReceiver(NetworkManager.s2c(),NodeSynchronizer.BeepDataPayload.TYPE, NodeSynchronizer.BeepDataPayload.CODEC, {
+                    packet, ctx ->
+                // TODO: implement volume
+                Sounds.beep(packet.pos.center, packet.pattern, packet.freq, packet.duration.toMillis().toInt())
+            })
+        }}
+        EnvExecutor.runInEnv(Env.SERVER) {{
+            // https://github.com/architectury/architectury-api/issues/518
+            NetworkManager.registerS2CPayloadType(NodeSynchronizer.DeviceBlockStatePayload.TYPE, NodeSynchronizer.DeviceBlockStatePayload.CODEC)
+            NetworkManager.registerS2CPayloadType(NodeSynchronizer.ScreenPayload.TYPE, NodeSynchronizer.ScreenPayload.CODEC)
+            NetworkManager.registerS2CPayloadType(NodeSynchronizer.BeepDataPayload.TYPE, NodeSynchronizer.BeepDataPayload.CODEC)
+        }}
+
+        LOGGER.info("Registered!")
         //LOGGER.info("Started mod in %s loader".formatted(NeoComputersInit.PLATFORM.getModloader()))
         //LOGGER.info("Kotlin: %s".formatted(NeoComputers.hello()))
-        LOGGER.info("Started mod in ${NeoComputers.PLATFORM?.modloader} loader")
+        LOGGER.info("Started mod in ${PLATFORM?.modloader} loader")
         LOGGER.info("Hello from kotlin!")
     }
 }

src/main/kotlin/org/neoflock/neocomputers/block/BaseBlock.kt

@@ -1,14 +1,19 @@
 package org.neoflock.neocomputers.block
 
+import dev.architectury.registry.registries.RegistrySupplier
+import net.minecraft.core.registries.Registries
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.resources.ResourceKey
 import net.minecraft.world.level.block.Block
+import net.minecraft.world.level.block.state.BlockBehaviour
+import org.neoflock.neocomputers.NeoComputers
+import java.util.function.Supplier
+import com.google.common.base.Suppliers
 
-class BaseBlock : Block {
-    protected val tier: Int
-    constructor(tier: Int): super(Properties.of()) {
-        this.tier = tier
-    }
+open class BaseBlock(properties: Properties = Properties.of()) : Block(properties) { // TODO: create a TieredBaseBlock class that extends this or something
+    // val tier: Int
 
-    public fun getTier(): Int {
-        return tier
+    companion object Registry {
+        fun register(name: String, sup: Supplier<BaseBlock>): RegistrySupplier<Block> = Blocks.BLOCKS.register(name, sup);
     }
 }

src/main/kotlin/org/neoflock/neocomputers/block/Blocks.kt

@@ -1,50 +1,48 @@
-package org.libreflock.neocomputers.block
+package org.neoflock.neocomputers.block
 
+import com.google.common.base.Suppliers
 import dev.architectury.registry.registries.DeferredRegister
+import dev.architectury.registry.registries.Registrar
+import dev.architectury.registry.registries.RegistrarManager
 import dev.architectury.registry.registries.RegistrySupplier
 import net.minecraft.core.registries.Registries
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.resources.ResourceKey
 import net.minecraft.world.item.BlockItem
 import net.minecraft.world.item.Item
 import net.minecraft.world.level.block.Block
-import org.libreflock.neocomputers.item.Items
-import org.libreflock.neocomputers.item.Tabs
+import net.minecraft.world.level.block.state.BlockBehaviour
+// import org.neoflock.neocomputers.item.Tabs
+// import org.neoflock.neocomputers.item.Items
 import org.neoflock.neocomputers.NeoComputers
 import org.neoflock.neocomputers.block.BaseBlock
+import org.neoflock.neocomputers.item.Items
+import org.neoflock.neocomputers.item.Tabs
 import java.util.function.Consumer
 import java.util.function.Supplier
 
 object Blocks {
-    val BLOCKS: DeferredRegister<Block?> = DeferredRegister.create(NeoComputers.MODID, Registries.BLOCK)
 
 
-    val CASE: MutableList<RegistrySupplier<Block?>?>? =
-        BaseBlock.register(intArrayOf(0, 1, 2), "case", { tier -> CaseBlock(tier) })
-
-    // public static final RegistrySupplier<Block> CASE0 = BLOCKS.register("case0", () -> new CaseBlock(0));
-    // public static final RegistrySupplier<Block> CASE1 = BLOCKS.register("case1", () -> new CaseBlock(1));
-    // public static final RegistrySupplier<Block> CASE2 = BLOCKS.register("case2", () -> new CaseBlock(2));
-    // public static final RegistrySupplier<Block> CABLE = BLOCKS.register("cable", () -> new CableBlock());
-    val SCREEN: RegistrySupplier<Block?>? = BLOCKS.register<Block?>("screen", Supplier { ScreenBlock() })
-    val CABLE: RegistrySupplier<Block?>? = BLOCKS.register<Block?>("cable", Supplier { CableBlock() })
+    val BLOCKS: DeferredRegister<Block> = DeferredRegister.create(NeoComputers.MODID, Registries.BLOCK)
+    val SCREEN_BLOCK: RegistrySupplier<Block> = BaseBlock.register("screen") { ScreenBlock() }
+    val CAPACITOR_BLOCK: RegistrySupplier<Block> = BaseBlock.register("capacitor") { CapacitorBlock(1) }
+    val CAPACITOR_BLOCK2: RegistrySupplier<Block> = BaseBlock.register("capacitor2") { CapacitorBlock(2) }
+    val CAPACITOR_BLOCK3: RegistrySupplier<Block> = BaseBlock.register("capacitor3") { CapacitorBlock(3) }
+    val SOLARGEN_BLOCK: RegistrySupplier<Block> = BaseBlock.register("solargen") { SolarGeneratorBlock() }
+    val COMBUSTGEN_BLOCK: RegistrySupplier<Block> = BaseBlock.register("combustgen") { CombustionGeneratorBlock() }
+    val CASE_BLOCK: RegistrySupplier<Block> = BaseBlock.register("case") { CaseBlock() }
+    val REDSTONEIO_BLOCK: RegistrySupplier<Block> = BaseBlock.register("redio") { RedstoneIOBlock() }
+    val CABLE_BLOCK: RegistrySupplier<Block> = BaseBlock.register("cable") { CableBlock() }
+    val RELAY_BLOCK: RegistrySupplier<Block> = BaseBlock.register("relay") { RelayBlock() }
+    val ROBOT_BLOCK: RegistrySupplier<Block> = BaseBlock.register("robot") { RobotBlock() }
+    val RACK_BLOCK: RegistrySupplier<Block> = BaseBlock.register("rack") { RackBlock() }
 
     fun registerBlockItems() {
-        BLOCKS.forEach(Consumer { sup: RegistrySupplier<Block?>? ->
-            // sup.pre
-            // sup.((blk) -> {
-            // NeoComputers.LOGGER.info(blk.getDescriptionId());
-            // if (blk instanceof BaseBlock) {
-            //     Items.ITEMS.register(sup.getId().getPath(), () -> new BaseBlock.BaseBlockItem(blk, new Item.Properties().arch$tab(Tabs.TAB)));
-            // } else {
-            //     Items.ITEMS.register(sup.getId().getPath(), () -> new BlockItem(blk, new Item.Properties().arch$tab(Tabs.TAB)));
-            // }
-            // });
-            Items.ITEMS.register(sup!!.getId().getPath(), {
-                if (sup.get() is BaseBlock) {
-                    return@register BaseBlockItem(sup.get(), Item.Properties().`arch$tab`(Tabs.TAB))
-                } else {
-                    return@register BlockItem(sup.get(), Item.Properties().`arch$tab`(Tabs.TAB))
-                }
-            })
+        BLOCKS.forEach(Consumer { sup: RegistrySupplier<Block> ->
+            NeoComputers.LOGGER.info(sup.id.toString())
+            val id = ResourceKey.create(Registries.ITEM, sup.id)
+            Items.ITEMS.register(sup.id.path) { BlockItem(sup.get()!!, Item.Properties().`arch$tab`(Tabs.TAB))}
         })
     }
 }

src/main/kotlin/org/neoflock/neocomputers/block/CableBlock.kt

@@ -0,0 +1,176 @@
+package org.neoflock.neocomputers.block
+
+import net.minecraft.client.renderer.blockentity.PistonHeadRenderer
+import net.minecraft.core.BlockPos
+import net.minecraft.core.Direction
+import net.minecraft.world.InteractionHand
+import net.minecraft.world.ItemInteractionResult
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.item.DyeColor
+import net.minecraft.world.item.DyeItem
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.item.Items
+import net.minecraft.world.level.BlockGetter
+import net.minecraft.world.level.Level
+import net.minecraft.world.level.block.Block
+import net.minecraft.world.level.block.EntityBlock
+import net.minecraft.world.level.block.entity.BlockEntity
+import net.minecraft.world.level.block.state.BlockState
+import net.minecraft.world.level.block.state.StateDefinition
+import net.minecraft.world.level.block.state.properties.BooleanProperty
+import net.minecraft.world.level.block.state.properties.EnumProperty
+import net.minecraft.world.phys.BlockHitResult
+import net.minecraft.world.phys.shapes.BooleanOp
+import net.minecraft.world.phys.shapes.CollisionContext
+import net.minecraft.world.phys.shapes.Shapes
+import net.minecraft.world.phys.shapes.VoxelShape
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.entity.CableEntity
+
+class CableBlock() : DeviceBlock(Properties.of()), EntityBlock {
+    companion object {
+        val NORTH = BooleanProperty.create("north")
+        val EAST = BooleanProperty.create("east")
+        val WEST = BooleanProperty.create("west")
+        val SOUTH = BooleanProperty.create("south")
+        val UP = BooleanProperty.create("up")
+        val DOWN = BooleanProperty.create("down")
+
+        val COLOR = EnumProperty<DyeColor>.create("color", DyeColor::class.java)
+
+        val MIN = 0.375
+        val MAX = 1-MIN
+
+        val shapeCache: Array<VoxelShape?> = arrayOfNulls(Direction.entries.size*Direction.entries.size*Direction.entries.size*Direction.entries.size*Direction.entries.size*Direction.entries.size)
+
+        fun calcIdx(north: Boolean, south: Boolean, east: Boolean, west: Boolean, up: Boolean, down: Boolean): Int {
+            var idx = if (down) 1 else 0
+            idx += 2*(if (up) 1 else 0)
+            idx += 4*(if (west) 1 else 0)
+            idx += 8*(if (east) 1 else 0)
+            idx += 16*(if (south) 1 else 0)
+            idx += 32*(if (north) 1 else 0)
+            return idx
+        }
+
+        fun makeShapes() {
+            NeoComputers.LOGGER.info("[CABLE] recomputing shapes")
+            for (north in arrayOf(false, true)) { // shut up
+                for (south in arrayOf(false, true)) {
+                    for (east in arrayOf(false, true)) {
+                        for (west in arrayOf(false, true)) {
+                            for (up in arrayOf(false, true)) {
+                                for (down in arrayOf(false, true)) {
+                                    val shape = makeShape(north, south, east, west, up, down)
+                                    val idx = calcIdx(north, south, east,west, up, down)
+                                    shapeCache[idx] = shape;
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        fun makeShape(north: Boolean, south: Boolean, east: Boolean, west: Boolean, up: Boolean, down: Boolean): VoxelShape {
+            var shape = Shapes.box(MIN, MIN, MIN, MAX, MAX, MAX)
+            if (north) shape = Shapes.join(shape, Shapes.box(MIN, MIN, 0.0, MAX, MAX, MIN ), BooleanOp.OR)
+            if (south) shape = Shapes.join(shape, Shapes.box(MIN, MIN, MAX, MAX, MAX, 1.0 ), BooleanOp.OR)
+            if (east) shape = Shapes.join(shape, Shapes.box(MAX, MIN, MIN, 1.0, MAX, MAX), BooleanOp.OR)
+            if (west) shape = Shapes.join(shape, Shapes.box(0.0, MIN, MIN, MIN, MAX, MAX ), BooleanOp.OR)
+            if (up) shape = Shapes.join(shape, Shapes.box(MIN, MAX, MIN, MAX, 1.0, MAX), BooleanOp.OR)
+            if (down) shape = Shapes.join(shape, Shapes.box(MIN, 0.0, MIN, MAX, MIN, MAX ), BooleanOp.OR)
+            return shape
+        }
+
+        fun getPropByDirection(direction: Direction): BooleanProperty {
+            return when (direction) {
+                Direction.NORTH -> NORTH
+                Direction.SOUTH -> SOUTH
+                Direction.WEST -> WEST
+                Direction.EAST -> EAST
+                Direction.UP -> UP
+                Direction.DOWN -> DOWN
+            }
+        }
+        fun shouldConnect(pos: BlockPos, npos: BlockPos, level: Level): Boolean {
+            val ent = level.getBlockEntity(npos)
+            val blockState = level.getBlockState(pos)
+            val theirState = level.getBlockState(npos)
+
+            val universal = DyeColor.LIGHT_GRAY
+            if(ent is CableEntity) {
+                val ourColor = blockState.getValue(COLOR)
+                val theirColor = theirState.getValue(COLOR)
+
+                if(ourColor.equals(universal)) return true
+                if(theirColor.equals(universal)) return true
+                if(ourColor.equals(theirColor)) return true
+                return false
+            }
+
+            return ent is DeviceBlockEntity
+        }
+    }
+
+    init {
+        registerDefaultState(stateDefinition.any()
+            .setValue(NORTH, false)
+            .setValue(EAST, false)
+            .setValue(WEST, false)
+            .setValue(SOUTH, false)
+            .setValue(UP, false)
+            .setValue(DOWN, false)
+            .setValue(COLOR, DyeColor.LIGHT_GRAY)
+        )
+        makeShapes()
+    }
+
+
+    override fun createBlockStateDefinition(builder: StateDefinition.Builder<Block?, BlockState?>) {
+        super.createBlockStateDefinition(builder
+            .add(NORTH)
+            .add(EAST)
+            .add(SOUTH)
+            .add(WEST)
+            .add(UP)
+            .add(DOWN)
+            .add(COLOR))
+    }
+
+    override fun newBlockEntity(pos: BlockPos, state: BlockState) = CableEntity(pos, state)
+
+    override fun getShape(state: BlockState, level: BlockGetter, pos: BlockPos, context: CollisionContext): VoxelShape? {
+        val idx = calcIdx(state.getValue(NORTH), state.getValue(SOUTH), state.getValue(EAST), state.getValue(WEST), state.getValue(UP), state.getValue(DOWN))
+        return shapeCache[idx];
+    //        return makeShape(state.getValue(NORTH), state.getValue(SOUTH), state.getValue(EAST), state.getValue(WEST), state.getValue(UP), state.getValue(DOWN))
+    }
+
+    override fun neighborChanged(state: BlockState, level: Level, pos: BlockPos, neighborBlock: Block, neighborPos: BlockPos, movedByPiston: Boolean) {
+//        val neighbors = getNeighbourEntities(blockPos, level)
+//        for (dir in Direction.entries) {
+//            val ent = level.getBlockEntity(blockPos.relative(dir))
+//            level.setBlockAndUpdate(blockPos, blockState.setValue(getPropByDirection(dir), (ent is NodeBlockEntity || ent is CableEntity)))
+//        }
+        super.neighborChanged(state, level, pos, neighborBlock, neighborPos, movedByPiston)
+        val diff = pos.subtract(neighborPos)
+        val dir = Direction.fromDelta(diff.x, diff.y, diff.z)!!.opposite
+        val ent = level.getBlockEntity(neighborPos)
+//        val value = ent is NodeBlockEntity || (ent is CableEntity && (level.getBlockState(neighborPos).getValue(COLOR).equals(state.getValue(COLOR)) || state.getValue(COLOR).equals(DyeColor.LIGHT_GRAY)))
+        level.setBlockAndUpdate(pos, state.setValue(getPropByDirection(dir), shouldConnect(pos, neighborPos, level)))
+    }
+
+    override fun useItemOn(stack: ItemStack, state: BlockState, level: Level, pos: BlockPos, player: Player, hand: InteractionHand, hitResult: BlockHitResult): ItemInteractionResult? {
+//        return super.useItemOn(stack, state, level, pos, player, hand, hitResult)
+        if (stack.item is DyeItem) {
+            val dyeitem = stack.item as DyeItem
+            level.setBlockAndUpdate(pos, state.setValue(COLOR, dyeitem.dyeColor))
+            val ent = level.getBlockEntity(pos)
+            if(ent is CableEntity) {
+                ent.connectionsAreDirty = true
+            }
+            return ItemInteractionResult.SUCCESS
+        }
+        return ItemInteractionResult.PASS_TO_DEFAULT_BLOCK_INTERACTION
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/block/Capacitor.kt

@@ -0,0 +1,86 @@
+package org.neoflock.neocomputers.block
+
+import net.minecraft.core.BlockPos
+import net.minecraft.core.Direction
+import net.minecraft.core.HolderLookup
+import net.minecraft.nbt.CompoundTag
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.network.chat.OutgoingChatMessage
+import net.minecraft.network.chat.PlayerChatMessage
+import net.minecraft.world.InteractionResult
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.level.Level
+import net.minecraft.world.level.block.entity.BlockEntity
+import net.minecraft.world.level.block.entity.BlockEntityType
+import net.minecraft.world.level.block.state.BlockState
+import net.minecraft.world.phys.BlockHitResult
+import org.neoflock.neocomputers.entity.BlockEntities
+import org.neoflock.neocomputers.network.DeviceNode
+import org.neoflock.neocomputers.network.PowerRole
+import kotlin.math.min
+
+open class CapacitorEntity(val capacity: Long, type: BlockEntityType<*>, pos: BlockPos, state: BlockState) : DeviceBlockEntity(type, pos, state) {
+
+    val deviceNode = object : DeviceNode() {
+        override var powerRole = PowerRole.STORAGE
+        override var energyCapacity: Long = capacity
+
+        override fun writeFullStateCommit(buf: FriendlyByteBuf) {
+            super.writeFullStateCommit(buf)
+            buf.writeVarLong(energy)
+        }
+
+        override fun processCommit(buf: FriendlyByteBuf) {
+            super.processCommit(buf)
+            energy = buf.readVarLong()
+        }
+    }
+
+    // TODO: cache list
+    override fun getDeviceNodes() = listOf(deviceNode)
+    override fun getNodeFromSide(directionToRequester: Direction) = deviceNode
+
+    override fun loadAdditional(tag: CompoundTag, registries: HolderLookup.Provider) {
+        super.loadAdditional(tag, registries)
+        deviceNode.energy = min(tag.getLong("energy"), deviceNode.energyCapacity)
+    }
+
+    override fun saveAdditional(compoundTag: CompoundTag, provider: HolderLookup.Provider) {
+        super.saveAdditional(compoundTag, provider)
+        compoundTag.putLong("energy", deviceNode.energy)
+    }
+}
+
+class CapacitorEntityTier1(pos: BlockPos, state: BlockState): CapacitorEntity(20000, BlockEntities.CAPACITOR_ENTITY.get(), pos, state)
+class CapacitorEntityTier2(pos: BlockPos, state: BlockState): CapacitorEntity(50000, BlockEntities.CAPACITOR2_ENTITY.get(), pos, state)
+class CapacitorEntityTier3(pos: BlockPos, state: BlockState): CapacitorEntity(100000, BlockEntities.CAPACITOR3_ENTITY.get(), pos, state)
+
+class CapacitorBlock(val tier: Int) : DeviceBlock()  {
+    override fun newBlockEntity(blockPos: BlockPos, blockState: BlockState): BlockEntity {
+        val cap: CapacitorEntity = when(tier) {
+            1 -> CapacitorEntityTier1(blockPos, blockState)
+            2 -> CapacitorEntityTier2(blockPos, blockState)
+            3 -> CapacitorEntityTier3(blockPos, blockState)
+            else -> throw UnsupportedOperationException("unsupported tier: $tier")
+        }
+        return cap
+    }
+
+    override fun useWithoutItem(
+        blockState: BlockState,
+        level: Level,
+        blockPos: BlockPos,
+        player: Player,
+        blockHitResult: BlockHitResult
+    ): InteractionResult {
+        if(level.isClientSide()) {
+            val ent = level.getBlockEntity(blockPos)
+            if(ent is CapacitorEntity) {
+                if(player.isCrouching) ent.deviceNode.giveEnergy(1)
+                val msg = PlayerChatMessage.system("energy: ${ent.deviceNode.energy} / ${ent.capacity} (${ent.deviceNode.connections.size} connections, ${ent.deviceNode.getReachable().size} reachable)")
+                player.sendSystemMessage(OutgoingChatMessage.create(msg).content())
+            }
+        }
+        return InteractionResult.SUCCESS
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/block/CaseBlock.kt

@@ -0,0 +1,137 @@
+package org.neoflock.neocomputers.block;
+
+import dev.architectury.registry.menu.MenuRegistry
+import net.minecraft.core.BlockPos
+import net.minecraft.core.Direction
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.server.level.ServerPlayer
+import net.minecraft.sounds.SoundEvent
+import net.minecraft.sounds.SoundEvents
+import net.minecraft.sounds.SoundSource
+import net.minecraft.util.RandomSource
+import net.minecraft.world.Containers
+import net.minecraft.world.InteractionResult
+import net.minecraft.world.entity.LivingEntity
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.item.context.BlockPlaceContext
+import net.minecraft.world.level.BlockGetter
+import net.minecraft.world.level.Level
+import net.minecraft.world.level.block.Block
+import net.minecraft.world.level.block.EntityBlock
+import net.minecraft.world.level.block.FurnaceBlock
+import net.minecraft.world.level.block.SoundType
+import net.minecraft.world.level.block.state.BlockState
+import net.minecraft.world.level.block.state.StateDefinition
+import net.minecraft.world.level.block.state.properties.BooleanProperty
+import net.minecraft.world.level.block.state.properties.EnumProperty
+import net.minecraft.world.phys.BlockHitResult
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.block.CombustionGeneratorBlock.Companion.COMBUSTGEN_ACTIVE
+import org.neoflock.neocomputers.entity.BlockEntities
+import org.neoflock.neocomputers.entity.CaseBlockEntity
+import org.neoflock.neocomputers.entity.MachineEntity
+import org.neoflock.neocomputers.network.NodeSynchronizer
+import org.neoflock.neocomputers.sounds.Sounds
+
+class CaseBlock() : DeviceBlock(Properties.of().sound(SoundType.METAL).lightLevel(CaseBlock::getLuminance).noOcclusion()) { // placeholder stuff
+    companion object {
+        val FACING: EnumProperty<Direction> = EnumProperty.create<Direction>("facing", Direction::class.java)
+        val COMPUTER_RUNNING = BooleanProperty.create("running")!!
+
+        fun getLuminance(blockState: BlockState): Int {
+            return if(blockState.getValue(COMPUTER_RUNNING)) 3 else 0
+        }
+    }
+
+    init {
+        registerDefaultState(stateDefinition.any().setValue(FACING, Direction.NORTH).setValue(COMPUTER_RUNNING, false))
+    }
+
+    override fun newBlockEntity(blockPos: BlockPos, blockState: BlockState) = CaseBlockEntity(blockPos, blockState)
+
+    override fun createBlockStateDefinition(builder: StateDefinition.Builder<Block?, BlockState?>) {
+        builder.add(COMPUTER_RUNNING)
+        builder.add(FACING)
+    }
+
+    fun getMachine(level: BlockGetter, blockPos: BlockPos): CaseBlockEntity {
+        return level.getBlockEntity(blockPos) as CaseBlockEntity
+    }
+
+    override fun isSignalSource(state: BlockState): Boolean = true
+
+    override fun getSignal(
+        blockState: BlockState,
+        blockGetter: BlockGetter,
+        blockPos: BlockPos,
+        direction: Direction
+    ): Int {
+        return getMachine(blockGetter, blockPos).redstoneOut[direction.opposite.ordinal]
+    }
+
+    override fun onPlace(
+        blockState: BlockState,
+        level: Level,
+        blockPos: BlockPos,
+        blockState2: BlockState,
+        bl: Boolean
+    ) {
+        if(!level.isClientSide) {
+            level.updateNeighborsAt(blockPos, this)
+            getMachine(level, blockPos).refetchAllRedstone()
+        }
+        super.onPlace(blockState, level, blockPos, blockState2, bl)
+    }
+
+    override fun getStateForPlacement(context: BlockPlaceContext): BlockState? {
+        return defaultBlockState().setValue(FACING, context.horizontalDirection.opposite)
+    }
+
+    override fun neighborChanged(
+        blockState: BlockState,
+        level: Level,
+        blockPos: BlockPos,
+        block: Block,
+        blockPos2: BlockPos,
+        bl: Boolean
+    ) {
+        super.neighborChanged(blockState, level, blockPos, block, blockPos2, bl)
+        if(!level.isClientSide) {
+            val dir = Direction.getNearest(blockPos2.center.subtract(blockPos.center))
+            getMachine(level, blockPos).refetchRedstone(dir)
+        }
+    }
+
+    override fun useWithoutItem(
+        blockState: BlockState,
+        level: Level,
+        blockPos: BlockPos,
+        player: Player,
+        blockHitResult: BlockHitResult
+    ): InteractionResult {
+        if(!level.isClientSide) {
+            val ent = level.getBlockEntity(blockPos, BlockEntities.CASE_ENTITY.get()).get()
+            if(player.isCrouching) {
+                // Quickstat
+                ent.start()
+            } else {
+                // Open menu
+                MenuRegistry.openMenu(player as ServerPlayer, ent)
+                NodeSynchronizer.registerPlayerScreen(player, ent.deviceNode)
+            }
+        }
+        return InteractionResult.SUCCESS
+    }
+
+    override fun onRemove(
+        blockState: BlockState,
+        level: Level,
+        blockPos: BlockPos,
+        blockState2: BlockState,
+        bl: Boolean
+    ) {
+        Containers.dropContentsOnDestroy(blockState, blockState2, level, blockPos)
+        super.onRemove(blockState, level, blockPos, blockState2, bl)
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/block/DeviceBlock.kt

@@ -0,0 +1,254 @@
+package org.neoflock.neocomputers.block
+
+import dev.architectury.networking.NetworkManager
+import io.netty.buffer.Unpooled
+import net.minecraft.client.Minecraft
+import net.minecraft.client.multiplayer.ClientLevel
+import net.minecraft.core.BlockPos
+import net.minecraft.core.Direction
+import net.minecraft.core.HolderLookup
+import net.minecraft.nbt.CompoundTag
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.network.chat.Component
+import net.minecraft.server.level.ServerLevel
+import net.minecraft.server.level.ServerPlayer
+import net.minecraft.world.InteractionResult
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.level.Level
+import net.minecraft.world.level.block.Block
+import net.minecraft.world.level.block.EntityBlock
+import net.minecraft.world.level.block.entity.BlockEntity
+import net.minecraft.world.level.block.entity.BlockEntityTicker
+import net.minecraft.world.level.block.entity.BlockEntityType
+import net.minecraft.world.level.block.state.BlockState
+import net.minecraft.world.phys.BlockHitResult
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.network.DeviceNode
+import org.neoflock.neocomputers.network.Networking
+import org.neoflock.neocomputers.network.NodeSynchronizer
+
+abstract class SingleDeviceBlockEntity(type: BlockEntityType<*>, pos: BlockPos, state: BlockState): DeviceBlockEntity(type, pos, state) {
+    abstract val deviceNode: DeviceNode
+
+    override fun getDeviceNodes() = listOf(deviceNode)
+    override fun getNodeFromSide(directionToRequester: Direction): DeviceNode? = deviceNode
+}
+
+abstract class DeviceBlockEntity(type: BlockEntityType<*>, pos: BlockPos, state: BlockState): BlockEntity(type, pos, state) {
+    val connetionsInDir = MutableList<DeviceNode?>(Direction.entries.size) { null }
+    val nodesInDir = MutableList<DeviceNode?>(Direction.entries.size) { null }
+    var alreadySetup = false
+    var receivedServerState = false
+    var connectionsAreDirty = true
+
+    abstract fun getDeviceNodes(): List<DeviceNode>
+
+    // Gets, if applicable, the node from a direction.
+    // The direction is from this block entity to the original requester,
+    // so it is Direction.UP if we asked from the one on the top side.
+    abstract fun getNodeFromSide(directionToRequester: Direction): DeviceNode?
+
+    open fun processCommits(commits: Iterable<FriendlyByteBuf>) {
+        receivedServerState = true
+        val devs = getDeviceNodes()
+        for (buf in commits) {
+            val idx = buf.readVarInt()
+            if(idx >= 0 && idx < devs.size) {
+                devs[idx].processCommit(buf)
+            }
+        }
+    }
+
+    open fun initNetworking(): DeviceBlockEntity {
+        if(hasLevel()) {
+            alreadySetup = true
+            Networking.addNodes(getDeviceNodes())
+            Direction.entries.forEach { handleConnectionsFor(it) }
+        }
+        return this
+    }
+
+    // Cables are 1 node
+    open fun getCurrentlyConnectedNodeIn(direction: Direction): DeviceNode? {
+        val ent = level?.getBlockEntity(blockPos.relative(direction))
+        if(ent is DeviceBlockEntity) {
+            return ent.getNodeFromSide(direction.opposite)
+        }
+        return null
+    }
+
+    open fun handleConnectionsFor(direction: Direction) {
+        // refuse connections on no node to reduce CPU load
+        val node = getNodeFromSide(direction)
+        val oldNode = nodesInDir[direction.ordinal]
+        nodesInDir[direction.ordinal] = node
+        val old = connetionsInDir[direction.ordinal]
+        val now = getCurrentlyConnectedNodeIn(direction)
+        if(node == null) {
+            if(old != null) oldNode?.disconnectFrom(old)
+            if(now != null) oldNode?.disconnectFrom(now)
+            return
+        }
+        if(oldNode != null && oldNode.address != node.address) {
+            if(old != null) oldNode.disconnectFrom(old)
+            if(now != null) oldNode.disconnectFrom(now)
+        }
+
+        if(old?.address != now?.address || oldNode == null) {
+            if(old != null) node.disconnectFrom(old)
+            if(now != null) node.connectTo(now)
+        }
+        // bullshit hack
+        if(now != null) {
+            node.connectTo(now)
+        }
+        connetionsInDir[direction.ordinal] = now
+    }
+
+    // TODO: optimize this sometime before our test computers melt
+    open fun tickDevice(level: Level) {
+        // Handles device connections
+
+        // we do it like this because stinky MC will call stuff before world is fully setup
+        // and then not notify us of neighbour changes
+        // this is because MC is considered shit
+        if(!alreadySetup) {
+            initNetworking()
+        }
+        if(connectionsAreDirty) {
+            connectionsAreDirty = false
+            Direction.entries.forEach { handleConnectionsFor(it) }
+        }
+    }
+
+    open fun sendCommitsToClient(level: Level) {
+        if(level !is ServerLevel) return
+        // synchronization!
+        val commits = mutableListOf<FriendlyByteBuf>()
+        val devs = getDeviceNodes()
+        for((i, dev) in devs.withIndex()) {
+            if(dev.outOfSync) {
+                dev.outOfSync = false
+                val buf = FriendlyByteBuf(Unpooled.buffer())
+                buf.writeVarInt(i)
+                dev.writeFullStateCommit(buf)
+                commits.addLast(buf)
+            }
+        }
+        if(commits.isNotEmpty()) {
+            level.players().forEach {
+                val dist = it.position().distanceTo(blockPos.center)
+                if(dist < 100) NetworkManager.sendToPlayer(it, NodeSynchronizer.DeviceBlockStatePayload(blockPos, commits))
+            }
+        }
+    }
+
+    open fun sendStateToPlayer(player: ServerPlayer) {
+        val world = level!!
+        if(world !is ServerLevel) return
+        // synchronization!
+        val commits = mutableListOf<FriendlyByteBuf>()
+        val devs = getDeviceNodes()
+        for((i, dev) in devs.withIndex()) {
+            val buf = FriendlyByteBuf(Unpooled.buffer())
+            buf.writeVarInt(i)
+            dev.writeFullStateCommit(buf)
+            commits.addLast(buf)
+        }
+        if(commits.isNotEmpty()) {
+            world.players().forEach {
+                val dist = it.position().distanceTo(blockPos.center)
+                if(dist <= NodeSynchronizer.MAX_STATE_DISTANCE_ALLOWED) NetworkManager.sendToPlayer(it, NodeSynchronizer.DeviceBlockStatePayload(blockPos, commits))
+            }
+        }
+    }
+
+    open fun requestServerState() {
+        // no point
+        if(receivedServerState) return
+        // we're the server bro :sob:
+        if(level?.isClientSide != true) return
+        val player = Minecraft.getInstance().player ?: return
+        // we assume the player will just reject, so we save on bandwidth
+        if(player.position().distanceTo(blockPos.center) > NodeSynchronizer.MAX_STATE_DISTANCE_ALLOWED) return
+        NetworkManager.sendToServer(NodeSynchronizer.DeviceBlockStateRequest(blockPos))
+    }
+
+    override fun setRemoved() {
+        super.setRemoved()
+        alreadySetup = false
+        Networking.removeNodes(getDeviceNodes())
+    }
+
+    override fun loadAdditional(tag: CompoundTag, registries: HolderLookup.Provider) {
+        super.loadAdditional(tag, registries)
+        for (node in getDeviceNodes()) {
+            node.markChanged()
+        }
+        connectionsAreDirty = true
+        receivedServerState = false
+    }
+}
+
+abstract class DeviceBlock(properties: Properties = Properties.of()): BaseBlock(properties), EntityBlock {
+    override fun <T : BlockEntity?> getTicker(
+        level: Level,
+        state: BlockState,
+        blockEntityType: BlockEntityType<T?>
+    ): BlockEntityTicker<T> {
+        return object : BlockEntityTicker<T> {
+            override fun tick(level: Level, blockPos: BlockPos, blockState: BlockState, blockEntity: T & Any) {
+                if(blockEntity !is DeviceBlockEntity) return
+                blockEntity.tickDevice(level)
+                blockEntity.sendCommitsToClient(level)
+                if(level.isClientSide) {
+                    blockEntity.requestServerState()
+                }
+            }
+        }
+    }
+
+    override fun onPlace(state: BlockState, level: Level, pos: BlockPos, oldState: BlockState, movedByPiston: Boolean) {
+        super.onPlace(state, level, pos, oldState, movedByPiston)
+        val ent = level.getBlockEntity(pos)
+        if(ent is DeviceBlockEntity) {
+            ent.initNetworking()
+            ent.connectionsAreDirty = true
+        }
+    }
+
+    override fun useWithoutItem(
+        state: BlockState,
+        level: Level,
+        pos: BlockPos,
+        player: Player,
+        hitResult: BlockHitResult
+    ): InteractionResult? {
+        val ent = level.getBlockEntity(pos)
+        if(ent is DeviceBlockEntity && player is ServerPlayer) {
+            val dir = hitResult.direction
+            val node = ent.getNodeFromSide(dir)
+            if(node == null) {
+                player.sendSystemMessage(Component.literal("no node for dir $dir"))
+            } else {
+                player.sendSystemMessage(Component.literal("dir: $dir, address: ${node.address}, connections: ${node.connections.joinToString(", ")}"))
+            }
+        }
+        return super.useWithoutItem(state, level, pos, player, hitResult)
+    }
+
+    override fun neighborChanged(
+        state: BlockState,
+        level: Level,
+        pos: BlockPos,
+        neighborBlock: Block,
+        neighborPos: BlockPos,
+        movedByPiston: Boolean
+    ) {
+        super.neighborChanged(state, level, pos, neighborBlock, neighborPos, movedByPiston)
+        val ent = level.getBlockEntity(pos)
+        if(ent is DeviceBlockEntity) {
+            ent.handleConnectionsFor(Direction.getNearest(neighborPos.center.subtract(pos.center)))
+        }
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/block/Generators.kt

@@ -0,0 +1,91 @@
+package org.neoflock.neocomputers.block
+
+import dev.architectury.registry.menu.MenuRegistry
+import net.minecraft.core.BlockPos
+import net.minecraft.core.particles.ParticleTypes
+import net.minecraft.server.level.ServerPlayer
+import net.minecraft.sounds.SoundEvents
+import net.minecraft.sounds.SoundSource
+import net.minecraft.util.RandomSource
+import net.minecraft.world.Containers
+import net.minecraft.world.InteractionResult
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.level.Level
+import net.minecraft.world.level.block.Block
+import net.minecraft.world.level.block.EntityBlock
+import net.minecraft.world.level.block.FurnaceBlock
+import net.minecraft.world.level.block.SoundType
+import net.minecraft.world.level.block.entity.BlockEntity
+import net.minecraft.world.level.block.state.BlockState
+import net.minecraft.world.level.block.state.StateDefinition
+import net.minecraft.world.level.block.state.properties.BooleanProperty
+import net.minecraft.world.phys.BlockHitResult
+import org.neoflock.neocomputers.entity.BlockEntities
+import org.neoflock.neocomputers.entity.SolarGeneratorBlockEntity
+import org.neoflock.neocomputers.entity.CombustionGeneratorBlockEntity
+import org.neoflock.neocomputers.network.NodeSynchronizer
+
+class SolarGeneratorBlock : DeviceBlock(), EntityBlock {
+    override fun newBlockEntity(blockPos: BlockPos, blockState: BlockState): BlockEntity = SolarGeneratorBlockEntity(blockPos, blockState)
+}
+
+// TODO: make it glow when burning
+class CombustionGeneratorBlock : DeviceBlock, EntityBlock {
+    companion object {
+        val COMBUSTGEN_ACTIVE = BooleanProperty.create("active")
+
+        fun getLuminance(blockState: BlockState): Int {
+            return if(blockState.getValue(COMBUSTGEN_ACTIVE)) 5 else 0
+        }
+    }
+
+    constructor(): super(Properties.of().sound(SoundType.STONE).lightLevel(CombustionGeneratorBlock::getLuminance)) {
+        registerDefaultState(defaultBlockState().setValue(COMBUSTGEN_ACTIVE, false))
+    }
+
+    override fun newBlockEntity(blockPos: BlockPos, blockState: BlockState): BlockEntity = CombustionGeneratorBlockEntity(blockPos, blockState)
+
+    override fun useWithoutItem(
+        blockState: BlockState,
+        level: Level,
+        blockPos: BlockPos,
+        player: Player,
+        blockHitResult: BlockHitResult
+    ): InteractionResult {
+        if(!level.isClientSide()) {
+            val sp = player as ServerPlayer
+            val ent = level.getBlockEntity(blockPos, BlockEntities.COMBUSTGEN_ENTITY.get()).get()
+            NodeSynchronizer.registerPlayerScreen(sp, ent.deviceNode)
+            MenuRegistry.openMenu(sp, ent)
+        }
+        return InteractionResult.SUCCESS
+    }
+
+    override fun createBlockStateDefinition(builder: StateDefinition.Builder<Block?, BlockState?>) {
+        builder.add(COMBUSTGEN_ACTIVE)
+    }
+
+    override fun animateTick(blockState: BlockState, level: Level, blockPos: BlockPos, randomSource: RandomSource) {
+        if(blockState.getValue(COMBUSTGEN_ACTIVE)) {
+            if(randomSource.nextDouble() < 0.1) level.playLocalSound(blockPos, SoundEvents.FURNACE_FIRE_CRACKLE, SoundSource.AMBIENT, 1F, 1F, false)
+
+            val x = blockPos.x.toDouble()
+            val y = blockPos.y.toDouble()
+            val z = blockPos.z.toDouble()
+
+            level.addParticle(ParticleTypes.SMOKE, x+0.5, y+1, z+0.5, 0.0, 0.0, 0.0)
+            level.addParticle(ParticleTypes.FLAME, x+0.5, y+1, z+0.5, 0.0, 0.0, 0.0)
+        }
+    }
+
+    override fun onRemove(
+        blockState: BlockState,
+        level: Level,
+        blockPos: BlockPos,
+        blockState2: BlockState,
+        bl: Boolean
+    ) {
+        Containers.dropContentsOnDestroy(blockState, blockState2, level, blockPos)
+        super.onRemove(blockState, level, blockPos, blockState2, bl)
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/block/RackBlock.kt

@@ -0,0 +1,69 @@
+package org.neoflock.neocomputers.block
+
+import dev.architectury.registry.menu.MenuRegistry
+import net.minecraft.core.BlockPos
+import net.minecraft.network.chat.Component
+import net.minecraft.server.level.ServerPlayer
+import net.minecraft.world.InteractionResult
+import net.minecraft.world.MenuProvider
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.level.BlockGetter
+import net.minecraft.world.level.Level
+import net.minecraft.world.level.block.EntityBlock
+import net.minecraft.world.level.block.RenderShape
+import net.minecraft.world.level.block.entity.BlockEntity
+import net.minecraft.world.level.block.state.BlockState
+import net.minecraft.world.phys.BlockHitResult
+import net.minecraft.world.phys.shapes.CollisionContext
+import net.minecraft.world.phys.shapes.Shapes
+import net.minecraft.world.phys.shapes.VoxelShape
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.entity.BlockEntities
+import org.neoflock.neocomputers.entity.RackEntity
+import org.neoflock.neocomputers.network.NodeSynchronizer
+
+class RackBlock : DeviceBlock(Properties.of().noOcclusion()), EntityBlock {
+    override fun newBlockEntity(
+        pos: BlockPos,
+        state: BlockState
+    ): BlockEntity? {
+        return RackEntity(pos, state)
+    }
+
+//    override fun getShape(
+//        state: BlockState,
+//        level: BlockGetter,
+//        pos: BlockPos,
+//        context: CollisionContext
+//    ): VoxelShape? {
+//        return Shapes.box(0.0,0.0,0.0,0.01,0.01,0.01)
+//    }
+
+//    override fun getRenderShape(state: BlockState): RenderShape? {
+//        return RenderShape
+//    }
+
+
+    override fun useWithoutItem(state: BlockState, level: Level, pos: BlockPos, player: Player, hitResult: BlockHitResult): InteractionResult? {
+        val res = hitResult.location
+        val ent = level.getBlockEntity(pos, BlockEntities.RACK_ENTITY.get()).get()
+        if(res.x == 18.0) { // TODO: handle rotation
+            NeoComputers.LOGGER.info("{} > {} > {}, {} > {} > {}", pos.z+15/16f, res.z, pos.z+1/16f, pos.y+14/16f, res.y, pos.y+2/16f)
+            if (pos.z + 15 / 16f > res.z && res.z > pos.z + 1 / 16f && pos.y + 14 / 16f > res.y && res.y > pos.y + 2 / 16f) {
+                var rack = 0
+                rack += if(res.y < pos.y+5/16f) 1 else 0
+                rack += if(res.y < pos.y+8/16f) 1 else 0
+                rack += if(res.y < pos.y+12/16f) 1 else 0
+
+                player.sendSystemMessage(Component.literal(String.format("Hit server #%d", rack))) // TODO: call some RackItem method
+                return InteractionResult.SUCCESS
+            }
+        }
+
+        if (!level.isClientSide) {
+            MenuRegistry.openExtendedMenu(player as ServerPlayer, ent)
+            NodeSynchronizer.registerPlayerScreen(player as ServerPlayer, ent.node)
+        }
+        return InteractionResult.SUCCESS
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/block/RedstoneIO.kt

@@ -0,0 +1,135 @@
+package org.neoflock.neocomputers.block
+
+import net.minecraft.core.BlockPos
+import net.minecraft.core.Direction
+import net.minecraft.world.InteractionResult
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.level.BlockGetter
+import net.minecraft.world.level.Level
+import net.minecraft.world.level.block.Block
+import net.minecraft.world.level.block.entity.BlockEntity
+import net.minecraft.world.level.block.state.BlockState
+import net.minecraft.world.phys.BlockHitResult
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.entity.BlockEntities
+import org.neoflock.neocomputers.network.Networking
+import org.neoflock.neocomputers.network.DeviceNode
+
+class RedstoneIOEntity(blockPos: BlockPos, blockState: BlockState): SingleDeviceBlockEntity(BlockEntities.REDSTONEIO_ENTITY.get(), blockPos, blockState) {
+    val redstoneIn = Array<Int>(Direction.entries.size) {0}
+    val redstoneOut = Array<Int>(Direction.entries.size) {0}
+
+    // TODO: have redstone I/O node for component and shi
+    override val deviceNode = object : DeviceNode() {
+
+    }
+
+    fun refetch(dir: Direction) {
+        val src = blockPos.offset(dir.stepX, dir.stepY, dir.stepZ)
+        val cur = level?.getSignal(src, dir) ?: 0
+        val idx = dir.ordinal
+        if(redstoneIn[idx] != cur) {
+            onRedstoneSignalChanged(dir, redstoneIn[idx], cur)
+        }
+        redstoneIn[idx] = cur
+    }
+
+    fun refetchAll() {
+        Direction.entries.forEach { refetch(it) }
+    }
+
+    fun onRedstoneSignalChanged(dir: Direction, oldValue: Int, newValue: Int) {
+        Networking.emitMessage(deviceNode, Networking.ComputerUncheckedSignal(deviceNode, "redstone_changed", arrayOf(deviceNode.address.toString(), dir.ordinal, oldValue, newValue)))
+        NeoComputers.LOGGER.info("redstone in direction ${dir.name} changed from $oldValue to $newValue")
+    }
+}
+
+class RedstoneIOBlock(): DeviceBlock(Properties.of().isRedstoneConductor { state, getter, pos -> true }) {
+    override fun newBlockEntity(blockPos: BlockPos, blockState: BlockState): BlockEntity = RedstoneIOEntity(blockPos, blockState)
+
+    fun getRedstoneIO(level: BlockGetter, blockPos: BlockPos): RedstoneIOEntity? {
+        val ent = level.getBlockEntity(blockPos)
+        if(ent is RedstoneIOEntity) return ent
+        return null
+    }
+
+    override fun isSignalSource(blockState: BlockState): Boolean {
+        return true
+    }
+
+    override fun getSignal(
+        blockState: BlockState,
+        blockGetter: BlockGetter,
+        blockPos: BlockPos,
+        direction: Direction
+    ): Int {
+        val redstoneIO = getRedstoneIO(blockGetter, blockPos)
+        if(redstoneIO != null) {
+            return redstoneIO.redstoneOut[direction.opposite.ordinal]
+        }
+        return super.getSignal(blockState, blockGetter, blockPos, direction)
+    }
+
+    override fun onPlace(
+        blockState: BlockState,
+        level: Level,
+        blockPos: BlockPos,
+        blockState2: BlockState,
+        bl: Boolean
+    ) {
+        if(!level.isClientSide) {
+            level.updateNeighborsAt(blockPos, this)
+            getRedstoneIO(level, blockPos)?.refetchAll()
+        }
+        super.onPlace(blockState, level, blockPos, blockState2, bl)
+    }
+
+    override fun onRemove(
+        blockState: BlockState,
+        level: Level,
+        blockPos: BlockPos,
+        blockState2: BlockState,
+        bl: Boolean
+    ) {
+        if(!level.isClientSide) {
+            level.updateNeighborsAt(blockPos, this)
+        }
+        super.onRemove(blockState, level, blockPos, blockState2, bl)
+    }
+
+    override fun neighborChanged(
+        blockState: BlockState,
+        level: Level,
+        blockPos: BlockPos,
+        block: Block,
+        blockPos2: BlockPos,
+        bl: Boolean
+    ) {
+        super.neighborChanged(blockState, level, blockPos, block, blockPos2, bl)
+        if(!level.isClientSide) {
+            val dir = Direction.getNearest(blockPos2.center.subtract(blockPos.center))
+            getRedstoneIO(level, blockPos)?.refetch(dir)
+        }
+    }
+
+    override fun useWithoutItem(
+        blockState: BlockState,
+        level: Level,
+        blockPos: BlockPos,
+        player: Player,
+        blockHitResult: BlockHitResult
+    ): InteractionResult? {
+        if(!level.isClientSide) {
+            val redio = getRedstoneIO(level, blockPos)
+            val dir = blockHitResult.direction
+            if (redio != null) {
+                val idx = dir.ordinal
+                redio.redstoneOut[idx]++
+                redio.redstoneOut[idx] %= 16
+                NeoComputers.LOGGER.info("outputting redstone level ${redio.redstoneOut[idx]} on ${dir.name}")
+            }
+            level.updateNeighborsAt(blockPos, this)
+        }
+        return super.useWithoutItem(blockState, level, blockPos, player, blockHitResult)
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/block/RelayBlock.kt

@@ -0,0 +1,194 @@
+package org.neoflock.neocomputers.block
+
+import dev.architectury.registry.menu.MenuRegistry
+import net.minecraft.core.BlockPos
+import net.minecraft.core.HolderLookup
+import net.minecraft.core.NonNullList
+import net.minecraft.nbt.CompoundTag
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.network.chat.Component
+import net.minecraft.server.level.ServerLevel
+import net.minecraft.server.level.ServerPlayer
+import net.minecraft.world.ContainerHelper
+import net.minecraft.world.Containers
+import net.minecraft.world.InteractionResult
+import net.minecraft.world.MenuProvider
+import net.minecraft.world.entity.player.Inventory
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.inventory.AbstractContainerMenu
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.level.Level
+import net.minecraft.world.level.block.SoundType
+import net.minecraft.world.level.block.entity.BlockEntity
+import net.minecraft.world.level.block.state.BlockState
+import net.minecraft.world.phys.BlockHitResult
+import org.neoflock.neocomputers.entity.BlockEntities
+import org.neoflock.neocomputers.entity.ComponentUser
+import org.neoflock.neocomputers.gui.menu.RelayMenu
+import org.neoflock.neocomputers.item.RelayUpgrade
+import org.neoflock.neocomputers.network.ConventionalNetworkDevice
+import org.neoflock.neocomputers.network.DeviceNode
+import org.neoflock.neocomputers.network.NNComponent
+import org.neoflock.neocomputers.network.Networking
+import org.neoflock.neocomputers.network.NodeSynchronizer
+import org.neoflock.neocomputers.utils.GenericContainer
+
+class RelayEntity(blockPos: BlockPos, blockState: BlockState): SingleDeviceBlockEntity(BlockEntities.RELAY_ENTITY.get(), blockPos, blockState),
+    GenericContainer, ComponentUser, MenuProvider {
+
+    companion object RelaySlots {
+        val CARD = 0
+        val CPU = 1
+        val MEM = 2
+        val STORAGE = 3
+
+        val SLOT_COUNT = 4
+    }
+
+    val slots = NonNullList.withSize(SLOT_COUNT, ItemStack.EMPTY)!!
+
+    override fun getItems(): NonNullList<ItemStack> = slots
+
+    override fun stillValid(player: Player): Boolean = true
+
+    fun getUpgrade(slot: Int) = slots[slot].item as? RelayUpgrade
+
+    fun computeRelayInterval(): Int = getUpgrade(CPU)?.getRelayInterval(slots[CPU]) ?: 5
+    fun computeRelayBufferSize(): Int = getUpgrade(MEM)?.getRelayBufferSize(slots[MEM]) ?: 1
+    fun computeRelayQueueSize(): Int = getUpgrade(STORAGE)?.getRelayQueueSize(slots[STORAGE]) ?: 20
+    fun getRelaySender(): DeviceNode? = getUpgrade(CARD)?.getComponentNode(slots[CARD])
+
+    fun computeRelayCapacity(): Int = computeRelayBufferSize() + computeRelayQueueSize()
+
+    val queue = mutableListOf<Networking.ClassicPacket>()
+    val justReceived = mutableListOf<Networking.ClassicPacket>()
+    var activityTickLeft = 0
+    var ticksUntilQueue = 0
+
+    override val deviceNode = object : DeviceNode() {
+        override var reachability = Networking.Visibility.NONE
+        override fun received(message: Networking.Message) {
+            super.received(message)
+            if(message.sender == this) return
+            if(message is Networking.ClassicPacket && message.hopCount < 5 && (queue.size + justReceived.size) < computeRelayCapacity()) {
+                justReceived.addLast(message)
+                activityTickLeft = 20
+                markChanged()
+            }
+        }
+
+        override fun encodeScreenData(player: ServerPlayer, buf: FriendlyByteBuf) {
+            super.encodeScreenData(player, buf)
+            buf.writeVarInt(computeRelayInterval())
+            buf.writeVarInt(computeRelayBufferSize())
+            buf.writeVarInt(computeRelayQueueSize())
+            buf.writeVarInt(queue.size + justReceived.size)
+        }
+
+        override fun writeFullStateCommit(buf: FriendlyByteBuf) {
+            super.writeFullStateCommit(buf)
+            buf.writeVarInt(activityTickLeft)
+        }
+
+        override fun processCommit(buf: FriendlyByteBuf) {
+            super.processCommit(buf)
+            activityTickLeft = buf.readVarInt()
+        }
+
+        override fun getComponent() = NNComponent("relay")
+    }
+
+    fun sendQueuedPacket() {
+        if(queue.isEmpty()) return
+        val pack = queue.removeFirst()
+
+        for(connection in deviceNode.connections) {
+            // skip unwanted loopback
+            if(connection in pack.sender.getReachable()) continue
+            val hopped = pack.hop(pack.sender)
+
+            if(connection is ConventionalNetworkDevice) {
+                connection.sendClassicPacket(hopped)
+            } else {
+                Networking.emitMessage(connection, hopped, setOf(deviceNode))
+            }
+        }
+    }
+
+    override fun tickDevice(level: Level) {
+        super.tickDevice(level)
+        if(level !is ServerLevel) return
+        if(activityTickLeft > 0) {
+            activityTickLeft--
+            deviceNode.markChanged()
+        }
+        queue.addAll(justReceived)
+        justReceived.clear()
+        val cap = computeRelayCapacity()
+        while(queue.size > cap) queue.removeLast()
+        ticksUntilQueue--
+        if(ticksUntilQueue <= 0) {
+            ticksUntilQueue = computeRelayInterval()
+            val toSend = computeRelayBufferSize()
+            for(i in 0..<toSend) {
+                sendQueuedPacket()
+            }
+        }
+        deviceNode.markChanged()
+    }
+
+    override fun getMachineBlockPosition() = blockPos!!
+
+    override fun getMachineLevel() = level!!
+
+    override fun getMachineNode() = deviceNode
+
+    override fun getDisplayName() = Component.translatable("block.neocomputers.relay")!!
+
+    override fun createMenu(
+        i: Int,
+        inventory: Inventory,
+        player: Player
+    ) = RelayMenu(i, inventory, this)
+
+    override fun loadAdditional(tag: CompoundTag, registries: HolderLookup.Provider) {
+        super.loadAdditional(tag, registries)
+        ContainerHelper.loadAllItems(tag, slots, registries)
+    }
+
+    override fun saveAdditional(tag: CompoundTag, registries: HolderLookup.Provider) {
+        super.saveAdditional(tag, registries)
+        ContainerHelper.saveAllItems(tag, slots, registries)
+    }
+}
+
+class RelayBlock: DeviceBlock(Properties.of().sound(SoundType.METAL)) {
+    override fun newBlockEntity(pos: BlockPos, state: BlockState) = RelayEntity(pos, state)
+
+    override fun useWithoutItem(
+        state: BlockState,
+        level: Level,
+        pos: BlockPos,
+        player: Player,
+        hitResult: BlockHitResult
+    ): InteractionResult {
+        if(!level.isClientSide) {
+            val ent = level.getBlockEntity(pos, BlockEntities.RELAY_ENTITY.get()).get()
+            // Open menu
+            MenuRegistry.openMenu(player as ServerPlayer, ent)
+            NodeSynchronizer.registerPlayerScreen(player, ent.deviceNode)
+        }
+        return InteractionResult.SUCCESS
+    }
+
+    override fun onRemove(
+        blockState: BlockState,
+        level: Level,
+        blockPos: BlockPos,
+        blockState2: BlockState,
+        bl: Boolean
+    ) {
+        Containers.dropContentsOnDestroy(blockState, blockState2, level, blockPos)
+        super.onRemove(blockState, level, blockPos, blockState2, bl)
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/block/RobotBlock.kt

@@ -0,0 +1,33 @@
+package org.neoflock.neocomputers.block
+
+import net.minecraft.core.BlockPos
+import net.minecraft.world.level.BlockGetter
+import net.minecraft.world.level.block.Blocks
+import net.minecraft.world.level.block.EntityBlock
+import net.minecraft.world.level.block.RenderShape
+import net.minecraft.world.level.block.entity.BlockEntity
+import net.minecraft.world.level.block.state.BlockBehaviour
+import net.minecraft.world.level.block.state.BlockState
+import net.minecraft.world.phys.shapes.CollisionContext
+import net.minecraft.world.phys.shapes.Shapes
+import net.minecraft.world.phys.shapes.VoxelShape
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.entity.RobotEntity
+
+class RobotBlock : BaseBlock(Properties.of().noOcclusion()), EntityBlock { // todo: node stuff
+    override fun newBlockEntity(pos: BlockPos, state: BlockState): BlockEntity {
+        NeoComputers.LOGGER.info("block entity created..")
+        return RobotEntity(pos, state)
+    }
+
+    override fun getShape(state: BlockState, level: BlockGetter, pos: BlockPos, context: CollisionContext): VoxelShape? {
+        return Shapes.box(0.1, 0.1, 0.1, 0.9, 0.9, 0.9)
+    }
+
+    override fun getRenderShape(state: BlockState): RenderShape {
+        return RenderShape.INVISIBLE // this is so not good
+    }
+//    public RenderShape getRenderShape(BlockState state) {
+//        return RenderShape.ENTITYBLOCK_ANIMATED;
+//    }
+}

src/main/kotlin/org/neoflock/neocomputers/block/ScreenBlock.kt

@@ -0,0 +1,92 @@
+package org.neoflock.neocomputers.block;
+
+import dev.architectury.registry.menu.ExtendedMenuProvider
+import dev.architectury.registry.menu.MenuRegistry
+import net.minecraft.core.BlockPos
+import net.minecraft.core.Direction
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.network.chat.Component
+import net.minecraft.server.level.ServerPlayer
+import net.minecraft.world.InteractionResult
+import net.minecraft.world.entity.player.Inventory
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.inventory.AbstractContainerMenu
+import net.minecraft.world.item.context.BlockPlaceContext
+import net.minecraft.world.level.Level
+import net.minecraft.world.level.block.Block
+import net.minecraft.world.level.block.entity.BlockEntity
+import net.minecraft.world.level.block.state.BlockState
+import net.minecraft.world.level.block.state.StateDefinition
+import net.minecraft.world.level.block.state.properties.EnumProperty
+import net.minecraft.world.level.block.state.properties.EnumProperty.*
+import net.minecraft.world.level.block.state.properties.IntegerProperty
+import net.minecraft.world.phys.BlockHitResult
+import org.neoflock.neocomputers.entity.BlockEntities
+import org.neoflock.neocomputers.entity.ScreenEntity
+import org.neoflock.neocomputers.gui.menu.ScreenMenu
+import kotlin.math.abs
+import kotlin.math.max
+import org.neoflock.neocomputers.network.NodeSynchronizer
+
+class ScreenBlock() : DeviceBlock() {
+    companion object {
+        val FACING_HORIZ: EnumProperty<Direction> = EnumProperty.create<Direction>("facing_horiz", Direction::class.java)
+        val FACING_VERTI: IntegerProperty = IntegerProperty.create("facing_verti", 0, 2) // "Integer" property doesnt accept values below 0, also death to enums, long live magic numbers
+    }
+
+    init {
+        registerDefaultState(stateDefinition.any().setValue(FACING_HORIZ, Direction.NORTH).setValue(FACING_VERTI, 1))
+    }
+
+    override fun newBlockEntity(blockPos: BlockPos, blockState: BlockState) = ScreenEntity(blockPos, blockState)
+
+    override fun useWithoutItem(
+        blockState: BlockState,
+        level: Level,
+        blockPos: BlockPos,
+        player: Player,
+        blockHitResult: BlockHitResult
+    ): InteractionResult {
+        if(!level.isClientSide) {
+            val sp = player as ServerPlayer
+            val ent = level.getBlockEntity(blockPos, BlockEntities.SCREEN_ENTITY.get()).get()
+            NodeSynchronizer.registerPlayerScreen(sp, ent.deviceNode)
+            MenuRegistry.openExtendedMenu(sp, object : ExtendedMenuProvider {
+                override fun getDisplayName(): Component = Component.literal("SCREEEEEN!")
+                override fun createMenu(i: Int, inventory: Inventory, player: Player): AbstractContainerMenu {
+//                    return Menus.SCREEN_MENU.get().create(i, inventory);
+                    return ScreenMenu(i, inventory, ent)
+                }
+
+                override fun saveExtraData(buf: FriendlyByteBuf?) {
+                    buf!!.writeBlockPos(blockPos)
+                }
+            })
+        }
+        return InteractionResult.SUCCESS
+    }
+
+    override fun createBlockStateDefinition(builder: StateDefinition.Builder<Block?, BlockState?>) {
+        builder.add(FACING_HORIZ)
+        builder.add(FACING_VERTI)
+    }
+
+    override fun getStateForPlacement(context: BlockPlaceContext): BlockState? {
+        val horiz = context.horizontalDirection
+        val looking = context.player!!.lookAngle
+
+        val biggest = max(max(abs(looking.y), abs(looking.z)), abs(looking.x))
+
+        return super.getStateForPlacement(context)!!
+            .setValue(FACING_HORIZ, horiz.opposite)
+            .setValue(FACING_VERTI, if (biggest != abs(looking.y)) 1 else if (looking.y < 0) 2 else 0 )
+
+//        val dirs = context.nearestLookingDirections
+//        context.
+//        return when (face) {
+//            Direction.UP -> super.getStateForPlacement(context)!!.setValue(FACING_HORIZ, looking.opposite).setValue(FACING_VERTI, 2)
+//            Direction.DOWN -> super.getStateForPlacement(context)!!.setValue(FACING_HORIZ, looking.opposite).setValue(FACING_VERTI, 0)
+//            else -> super.getStateForPlacement(context)!!.setValue(FACING_HORIZ, looking.opposite).setValue(FACING_VERTI, 1)
+//        }
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/block/model/AbstractModel.kt

@@ -0,0 +1,111 @@
+package org.neoflock.neocomputers.block.model
+
+import com.mojang.blaze3d.vertex.VertexConsumer
+import net.minecraft.client.Minecraft
+import net.minecraft.client.model.geom.ModelPart
+import net.minecraft.client.renderer.block.model.BakedQuad
+import net.minecraft.client.renderer.block.model.ItemOverrides
+import net.minecraft.client.renderer.block.model.ItemTransforms
+import net.minecraft.client.renderer.texture.TextureAtlas
+import net.minecraft.client.renderer.texture.TextureAtlasSprite
+import net.minecraft.client.resources.model.BakedModel
+import net.minecraft.client.resources.model.Material
+import net.minecraft.client.resources.model.ModelBaker
+import net.minecraft.client.resources.model.ModelState
+import net.minecraft.client.resources.model.UnbakedModel
+import net.minecraft.core.Direction
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.util.RandomSource
+import net.minecraft.world.level.block.state.BlockState
+import org.neoflock.neocomputers.NeoComputers
+import java.util.function.Function
+
+abstract class AbstractModel : BakedModel {
+    val atlas = Minecraft.getInstance().getTextureAtlas(TextureAtlas.LOCATION_BLOCKS)
+    var baker: ModelBaker? = null;
+    var mesh: Map<Direction, List<BakedQuad>> = mapOf(
+        Direction.UP to listOf(),
+        Direction.DOWN to listOf(),
+        Direction.EAST to listOf(),
+        Direction.WEST to listOf(),
+        Direction.SOUTH to listOf(),
+        Direction.NORTH to listOf(),
+        );
+
+    override fun getQuads(state: BlockState?, direction: Direction?, random: RandomSource): List<BakedQuad?>? { // perf? what's that?
+        if (direction != null) {
+            return mesh[direction]
+        } else {
+            var allquads: MutableList<BakedQuad> = mutableListOf()
+            mesh.forEach { (_, quads) ->
+                allquads.addAll(quads)
+            }
+            return allquads
+        }
+    }
+
+    fun _bake(spriteGetter: Function<Material, TextureAtlasSprite>): BakedModel {
+        bake { r: Material -> spriteGetter.apply(r) }
+        return this
+    }
+
+    override fun getParticleIcon(): TextureAtlasSprite? {
+        return atlas.apply(particle())
+    }
+
+    abstract fun bake(atlas: (Material) -> TextureAtlasSprite)
+
+    abstract fun particle(): ResourceLocation
+
+}
+
+class SchizoConsumer {
+    var mesh: Map<Direction, MutableList<BakedQuad>> = mapOf(
+        Direction.UP to mutableListOf(),
+        Direction.DOWN to mutableListOf(),
+        Direction.EAST to mutableListOf(),
+        Direction.WEST to mutableListOf(),
+        Direction.SOUTH to mutableListOf(),
+        Direction.NORTH to mutableListOf(),
+    );
+
+    var vertices: MutableList<Int> = mutableListOf();
+    var sprite: TextureAtlasSprite? = null;
+    var normal: Direction? = null;
+    var tint_index = -1
+    var shade = false
+
+    fun startQuad(normal: Direction, sprite: TextureAtlasSprite, tint_index: Int = -1, shade: Boolean = false): SchizoConsumer {
+        this.sprite = sprite
+        this.normal = normal
+        this.tint_index = tint_index
+        this.shade = shade
+        return this
+    }
+
+    fun vertex(x: Float, y: Float, z:Float, colorABGR: Int, u: Float, v: Float) { // uv are normalized
+        if (sprite == null || normal == null) {
+            throw Error("quad not started")
+        }
+
+//        NeoComputers.LOGGER.info("{} {} -> {} {} ", u, v, sprite!!.getU(u), sprite!!.getV(v))
+        vertices.add(x.toBits())
+        vertices.add(y.toBits())
+        vertices.add(z.toBits())
+        vertices.add(colorABGR)
+        vertices.add(sprite!!.getU(u).toBits())
+        vertices.add(sprite!!.getV(v).toBits())
+        vertices.add(0)
+        vertices.add(0)
+
+        if (vertices.size == 4 * 8) {
+            var quad = BakedQuad(vertices.toIntArray(), tint_index, normal!!, sprite!!, shade)
+            mesh.get(normal)!!.add(quad)
+            normal = null
+            sprite = null
+            vertices.clear()
+        }
+    } // TODO: add stuff like squares
+
+
+}

src/main/kotlin/org/neoflock/neocomputers/block/model/RobotModel.kt

@@ -0,0 +1,83 @@
+package org.neoflock.neocomputers.block.model
+
+import net.minecraft.client.Minecraft
+import net.minecraft.client.renderer.block.model.BakedQuad
+import net.minecraft.client.renderer.block.model.ItemOverrides
+import net.minecraft.client.renderer.block.model.ItemTransforms
+import net.minecraft.client.renderer.texture.TextureAtlas
+import net.minecraft.client.renderer.texture.TextureAtlasSprite
+import net.minecraft.client.resources.model.BakedModel
+import net.minecraft.client.resources.model.Material
+import net.minecraft.client.resources.model.ModelBaker
+import net.minecraft.client.resources.model.ModelState
+import net.minecraft.client.resources.model.UnbakedModel
+import net.minecraft.core.Direction
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.util.RandomSource
+import net.minecraft.util.ResourceLocationPattern
+import net.minecraft.world.level.block.state.BlockState
+import org.neoflock.neocomputers.NeoComputers
+import java.util.function.Function
+
+class RobotModel() : AbstractModel() {
+    val size = 0.4f
+    val l = 0.5f-size;
+    val h = 0.5f+size;
+
+    // TODO: fix dimensions (i eyeballed it)
+    override fun bake(atlas: (Material) -> TextureAtlasSprite) {
+//    override fun bake(atlas: Function<Material?, TextureAtlasSprite?>, state: ModelState): BakedModel {
+        val sprite = atlas(Material(TextureAtlas.LOCATION_BLOCKS, ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "block/robot")))
+//        val sprite = atlas.apply(Material(TextureAtlas.LOCATION_BLOCKS, ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "robot")))!!
+        var verts: SchizoConsumer = SchizoConsumer()
+
+        // top pyramid, enjoy reading this schizo mess
+        bakeTri(verts, Direction.WEST, sprite, l,l, l,  h, 9f/16f,1f, 0f, 0f, 0f, 16f/32f)
+        bakeTri(verts, Direction.EAST, sprite, h, h, h,  l, 9f/16f, 1f, 16/32f, 16/32f, 16/32f, 0f)
+        bakeTri(verts, Direction.SOUTH, sprite, l,  h, h, h, 9f/16f, 1f, 0f, 16f/32f, 16f/32f, 16f/32f)
+        bakeTri(verts, Direction.NORTH, sprite, h,  l, l,l,  9f/16f, 1f, 16/32f, 0f, 0f, 0f)
+
+        verts.startQuad(Direction.DOWN, sprite, 0)
+        verts.vertex(l, 9f/16F, h, 0xFFFFFFFF.toInt(), 16f/32f, 16/32F)
+        verts.vertex(l, 9f/16f, l, 0xFFFFFFFF.toInt(), 0F, 16/32F)
+        verts.vertex(h, 9f/16f, l, 0xFFFFFFFF.toInt(), 0F, 1F)
+        verts.vertex(h, 9f/16f, h, 0xFFFFFFFF.toInt(), 16/32F, 1F)
+
+        // bottom
+        bakeTri(verts, Direction.WEST, sprite, l, h, l, l, 8f/16f, 1/16f, 0f, 0f, 0f, 16f/32f)
+        bakeTri(verts, Direction.EAST, sprite, h, l, h,  h, 8f/16f, 1/16f, 0f, 0f, 0f, 16f/32f)
+        bakeTri(verts, Direction.SOUTH, sprite, h,  h, l, h, 8f/16f, 1/16f, 0f, 0f, 0f, 16f/32f)
+        bakeTri(verts, Direction.NORTH, sprite, l,  l, h,l,  8f/16f, 1/16f, 0f, 0f, 0f, 16f/32f)
+
+        verts.startQuad(Direction.UP, sprite, 0)
+        verts.vertex(h, 8f/16F, l, 0xFFFFFFFF.toInt(), 16/32F, 16/32F)
+        verts.vertex(l, 8f/16f, l, 0xFFFFFFFF.toInt(), 0F, 16/32F)
+        verts.vertex(l, 8f/16f, h, 0xFFFFFFFF.toInt(), 0F, 1F)
+        verts.vertex(h, 8f/16f, h, 0xFFFFFFFF.toInt(), 16/32F, 1F)
+
+
+        this.mesh = verts.mesh
+    }
+
+    fun bakeTri(verts: SchizoConsumer, normal: Direction, sprite: TextureAtlasSprite, lx: Float,  lz: Float, rx: Float,  rz: Float, dy: Float, uy: Float, lu: Float, lv: Float, ru: Float, rv: Float) {
+        verts.startQuad(normal, sprite, 0)
+        verts.vertex(0.5F, uy, 0.5F, 0xFFFFFFFF.toInt(), 8F/32F, 8F/32F)
+        verts.vertex(0.5F, uy, 0.5F, 0xFFFFFFFF.toInt(), 8F/32F, 8F/32F)
+        verts.vertex(lx, dy, lz, 0xFFFFFFFF.toInt(), lu, lv)
+        verts.vertex(rx, dy, rz, 0xFFFFFFFF.toInt(), ru, rv)
+    }
+
+    override fun particle(): ResourceLocation = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "block/teto")
+
+    override fun useAmbientOcclusion(): Boolean = true
+
+    override fun isGui3d(): Boolean = true
+
+    override fun usesBlockLight(): Boolean = true
+
+    override fun isCustomRenderer(): Boolean = false
+
+    override fun getTransforms(): ItemTransforms? = ItemTransforms.NO_TRANSFORMS
+
+    override fun getOverrides(): ItemOverrides? = ItemOverrides.EMPTY // TODO: item
+}

src/main/kotlin/org/neoflock/neocomputers/datagen/ModelGenerator.kt

@@ -0,0 +1,22 @@
+package org.neoflock.neocomputers.datagen
+
+import net.fabricmc.fabric.api.datagen.v1.FabricDataOutput
+import net.fabricmc.fabric.api.datagen.v1.provider.FabricModelProvider
+import net.minecraft.data.models.BlockModelGenerators
+import net.minecraft.data.models.ItemModelGenerators
+import net.minecraft.data.models.model.ModelTemplate
+import net.minecraft.data.models.model.ModelTemplates
+import org.neoflock.neocomputers.block.Blocks
+import org.neoflock.neocomputers.item.Items
+
+class ModelGenerator(output: FabricDataOutput) : FabricModelProvider(output) {
+    override fun generateBlockStateModels(blockStateModelGenerator: BlockModelGenerators) {
+//        blockStateModelGenerator.createGenericCube(Blocks.CASE_BLOCK.get())
+
+    }
+
+    override fun generateItemModels(itemModelGenerator: ItemModelGenerators) {
+        itemModelGenerator.generateFlatItem(Items.SERVER0.get(), ModelTemplates.FLAT_ITEM)
+    }
+
+}

src/main/kotlin/org/neoflock/neocomputers/datagen/NeoComputersDataGenerator.kt

@@ -0,0 +1,13 @@
+package org.neoflock.neocomputers.datagen
+
+import net.fabricmc.fabric.api.datagen.v1.DataGeneratorEntrypoint
+import net.fabricmc.fabric.api.datagen.v1.FabricDataGenerator
+import net.fabricmc.fabric.api.datagen.v1.FabricDataOutput
+import org.neoflock.neocomputers.NeoComputers
+
+class NeoComputersDataGenerator : DataGeneratorEntrypoint {
+    override fun onInitializeDataGenerator(generator: FabricDataGenerator) {
+        val pack: FabricDataGenerator.Pack = generator.createPack()
+        pack.addProvider(::ModelGenerator)
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/entity/BlockEntities.kt

@@ -0,0 +1,117 @@
+package org.neoflock.neocomputers.entity;
+
+import com.mojang.datafixers.types.templates.TypeTemplate
+import com.mojang.serialization.Codec
+import com.mojang.datafixers.types.Type as DataFixType
+import dev.architectury.registry.registries.DeferredRegister
+import dev.architectury.registry.registries.RegistrySupplier
+import net.minecraft.core.registries.Registries
+import net.minecraft.util.datafix.DataFixTypes
+import net.minecraft.world.level.block.Block
+import net.minecraft.world.level.block.entity.BlockEntityType
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.block.Blocks
+import org.neoflock.neocomputers.block.CapacitorEntity
+import org.neoflock.neocomputers.block.CapacitorEntityTier1
+import org.neoflock.neocomputers.block.CapacitorEntityTier2
+import org.neoflock.neocomputers.block.CapacitorEntityTier3
+import org.neoflock.neocomputers.block.RelayEntity
+import org.neoflock.neocomputers.network.PowerManager
+
+// complete fucking bullshit btw
+class BullshitFix: DataFixType<Unit>() {
+    override fun buildTemplate(): TypeTemplate? {
+        return null
+    }
+
+    override fun buildCodec(): Codec<Unit?>? {
+        return null
+    }
+
+    override fun equals(
+        o: Any?,
+        ignoreRecursionPoints: Boolean,
+        checkIndex: Boolean
+    ): Boolean {
+        return o == this
+    }
+
+}
+
+object BlockEntities {
+    val BLOCKENTITIES: DeferredRegister<BlockEntityType<*>> = DeferredRegister.create(NeoComputers.MODID, Registries.BLOCK_ENTITY_TYPE);
+
+    val SCREEN_ENTITY: RegistrySupplier<BlockEntityType<ScreenEntity>> = BLOCKENTITIES.register("screen") {
+        BlockEntityType(
+            ::ScreenEntity, setOf(Blocks.SCREEN_BLOCK.get()), BullshitFix()
+        )
+    }
+    val CAPACITOR_ENTITY: RegistrySupplier<BlockEntityType<CapacitorEntityTier1>> = BLOCKENTITIES.register("capacitor") {
+        BlockEntityType(
+            ::CapacitorEntityTier1, setOf(Blocks.CAPACITOR_BLOCK.get()), BullshitFix()
+        )
+    }
+    val CAPACITOR2_ENTITY: RegistrySupplier<BlockEntityType<CapacitorEntityTier2>> = BLOCKENTITIES.register("capacitor2") {
+        BlockEntityType(
+            ::CapacitorEntityTier2, setOf(Blocks.CAPACITOR_BLOCK2.get()), BullshitFix()
+        )
+    }
+    val CAPACITOR3_ENTITY: RegistrySupplier<BlockEntityType<CapacitorEntityTier3>> = BLOCKENTITIES.register("capacitor3") {
+        BlockEntityType(
+            ::CapacitorEntityTier3, setOf(Blocks.CAPACITOR_BLOCK3.get()), BullshitFix()
+        )
+    }
+    val SOLARGEN_ENTITY: RegistrySupplier<BlockEntityType<SolarGeneratorBlockEntity>> = BLOCKENTITIES.register("solargen") {
+        BlockEntityType(
+            ::SolarGeneratorBlockEntity, setOf(Blocks.SOLARGEN_BLOCK.get()), BullshitFix()
+        )
+    }
+    val COMBUSTGEN_ENTITY: RegistrySupplier<BlockEntityType<CombustionGeneratorBlockEntity>> = BLOCKENTITIES.register("combustgen") {
+        BlockEntityType(
+            ::CombustionGeneratorBlockEntity, setOf(Blocks.COMBUSTGEN_BLOCK.get()), BullshitFix()
+        )
+    }
+    val REDSTONEIO_ENTITY: RegistrySupplier<BlockEntityType<CombustionGeneratorBlockEntity>> = BLOCKENTITIES.register("redio") {
+        BlockEntityType(
+            ::CombustionGeneratorBlockEntity, setOf(Blocks.REDSTONEIO_BLOCK.get()), BullshitFix()
+        )
+    }
+    val CASE_ENTITY: RegistrySupplier<BlockEntityType<CaseBlockEntity>> = BLOCKENTITIES.register("case") {
+        BlockEntityType(
+            ::CaseBlockEntity, setOf(Blocks.CASE_BLOCK.get()), BullshitFix()
+        )
+    }
+
+    val CABLE_ENTITY: RegistrySupplier<BlockEntityType<CableEntity>> = BLOCKENTITIES.register("cable") {
+        BlockEntityType(
+            ::CableEntity, setOf(Blocks.CABLE_BLOCK.get()), BullshitFix()
+        )
+    }
+
+    val RELAY_ENTITY: RegistrySupplier<BlockEntityType<RelayEntity>> = BLOCKENTITIES.register("relay") {
+        BlockEntityType(
+            ::RelayEntity, setOf(Blocks.RELAY_BLOCK.get()), BullshitFix()
+        )
+    }
+
+    val ROBOT_ENTITY: RegistrySupplier<BlockEntityType<RobotEntity>> = BLOCKENTITIES.register("robot") {
+        BlockEntityType(
+            ::RobotEntity, setOf(Blocks.ROBOT_BLOCK.get()), BullshitFix()
+        )
+    }
+
+    val RACK_ENTITY: RegistrySupplier<BlockEntityType<RackEntity>> = BLOCKENTITIES.register("rack") {
+        BlockEntityType(
+            ::RackEntity, setOf(Blocks.RACK_BLOCK.get()), BullshitFix()
+        )
+    }
+
+    fun registerPowerBlocks() {
+        PowerManager.registerPowerDevice(CAPACITOR_ENTITY.get())
+        PowerManager.registerPowerDevice(CAPACITOR2_ENTITY.get())
+        PowerManager.registerPowerDevice(CAPACITOR3_ENTITY.get())
+        PowerManager.registerPowerDevice(SOLARGEN_ENTITY.get())
+        PowerManager.registerPowerDevice(COMBUSTGEN_ENTITY.get())
+        PowerManager.registerPowerDevice(CASE_ENTITY.get())
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/entity/CableEntity.kt

@@ -0,0 +1,47 @@
+package org.neoflock.neocomputers.entity
+
+import net.minecraft.core.BlockPos
+import net.minecraft.core.Direction
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.world.item.DyeColor
+import net.minecraft.world.level.Level
+import net.minecraft.world.level.block.entity.BlockEntity
+import net.minecraft.world.level.block.state.BlockState
+import org.neoflock.neocomputers.block.CableBlock
+import org.neoflock.neocomputers.block.CableBlock.Companion.COLOR
+import org.neoflock.neocomputers.block.CableBlock.Companion.getPropByDirection
+import org.neoflock.neocomputers.block.DeviceBlockEntity
+import org.neoflock.neocomputers.block.SingleDeviceBlockEntity
+import org.neoflock.neocomputers.network.DeviceNode
+
+class CableEntity(pos: BlockPos, state: BlockState) : SingleDeviceBlockEntity(BlockEntities.CABLE_ENTITY.get(), pos, state) {
+    override val deviceNode = object : DeviceNode(){}
+
+    override fun sendCommitsToClient(level: Level) {
+        // we have nothing to commit lol
+        return
+    }
+
+    override fun requestServerState() {
+        // no state, we don't bother
+        return
+    }
+
+    override fun getNodeFromSide(directionToRequester: Direction): DeviceNode? {
+        if(CableBlock.shouldConnect(blockPos, blockPos.relative(directionToRequester), level!!)) {
+            return deviceNode
+        }
+        return null
+    }
+
+    override fun setChanged() {
+        super.setChanged()
+        for (dir in Direction.entries) {
+            val ent = level!!.getBlockEntity(blockPos.relative(dir))
+            level!!.setBlockAndUpdate(blockPos, blockState.setValue(getPropByDirection(dir), CableBlock.shouldConnect(blockPos, blockPos.relative(dir), level!!)))
+            if(ent is DeviceBlockEntity) {
+                ent.connectionsAreDirty = true
+            }
+        }
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/entity/CaseBlockEntity.kt

@@ -0,0 +1,307 @@
+package org.neoflock.neocomputers.entity
+
+import net.minecraft.client.Minecraft
+import net.minecraft.client.resources.sounds.SoundInstance
+import net.minecraft.core.BlockPos
+import net.minecraft.core.Direction
+import net.minecraft.core.HolderLookup
+import net.minecraft.core.NonNullList
+import net.minecraft.nbt.CompoundTag
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.network.chat.Component
+import net.minecraft.server.level.ServerPlayer
+import net.minecraft.sounds.SoundSource
+import net.minecraft.world.Container
+import net.minecraft.world.ContainerHelper
+import net.minecraft.world.MenuProvider
+import net.minecraft.world.entity.player.Inventory
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.level.Level
+import net.minecraft.world.level.block.state.BlockState
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.block.CaseBlock
+import org.neoflock.neocomputers.block.SingleDeviceBlockEntity
+import org.neoflock.neocomputers.gui.menu.CaseMenu
+import org.neoflock.neocomputers.item.ComponentItem
+import org.neoflock.neocomputers.network.DeviceNode
+import org.neoflock.neocomputers.network.NNComponent
+import org.neoflock.neocomputers.network.Networking
+import org.neoflock.neocomputers.network.PowerRole
+import org.neoflock.neocomputers.sounds.ComputerRunningSoundInstance
+import org.neoflock.neocomputers.sounds.Sounds
+import org.neoflock.neocomputers.utils.GenericContainer
+import java.time.Duration
+import kotlin.math.max
+import kotlin.math.min
+import org.neoflock.neocomputers.network.NodeSynchronizer
+import kotlin.text.ifEmpty
+
+class CaseBlockEntity(blockPos: BlockPos, blockState: BlockState): SingleDeviceBlockEntity(BlockEntities.CASE_ENTITY.get(), blockPos, blockState), MachineEntity, GenericContainer, MenuProvider {
+    val stacks: NonNullList<ItemStack> = NonNullList<ItemStack>.withSize(7, ItemStack.EMPTY)
+
+    var isOn = false
+    var diskActivityTime = 0 // TOOD: writing writers and reading readers
+    var networkActivityTime = 0
+    var err: String? = null
+    var arch = "Lua 5.3"
+    var soundInstance: SoundInstance? = null
+
+    override val deviceNode = object : DeviceNode() {
+        override var powerRole = PowerRole.CONSUMER
+        override var energyCapacity: Long = 500
+
+        override fun writeFullStateCommit(buf: FriendlyByteBuf) {
+            super.writeFullStateCommit(buf)
+            buf.writeUUID(address)
+            buf.writeBoolean(isOn)
+            buf.writeVarInt(diskActivityTime)
+            buf.writeVarInt(networkActivityTime)
+            buf.writeUtf(err ?: "")
+        }
+
+        override fun processCommit(buf: FriendlyByteBuf) {
+            super.processCommit(buf)
+            Networking.changeNodeAddress(this, buf.readUUID())
+            setRunning(buf.readBoolean())
+            diskActivityTime = buf.readVarInt()
+            networkActivityTime = buf.readVarInt()
+            err = buf.readUtf().ifEmpty { null }
+        }
+
+        override fun processScreenInteraction(player: ServerPlayer, buf: FriendlyByteBuf) {
+            super.processScreenInteraction(player, buf)
+            val c = buf.readByte().toInt()
+            if(c == 0x01) {
+                start()
+            }
+            if(c == 0x02) {
+                stop()
+            }
+        }
+
+        override fun encodeScreenData(player: ServerPlayer, buf: FriendlyByteBuf) {
+            super.encodeScreenData(player, buf)
+            buf.writeBoolean(isOn)
+            buf.writeByteArray((err ?: "").encodeToByteArray())
+            buf.writeLong(energy)
+            buf.writeLong(energyCapacity)
+            buf.writeLong(getMachineMemoryUsed())
+            buf.writeLong(getMachineMemoryTotal())
+            buf.writeLong(getMachineComponentsUsed())
+            buf.writeLong(getMachineComponentsTotal())
+            buf.writeUtf(arch)
+        }
+
+        override fun tick() {
+            super.tick()
+            if (isRunning()) {
+                if(diskActivityTime > 0) diskActivityTime--
+                if(networkActivityTime > 0) networkActivityTime--
+                if(getMachineArchitectures().isEmpty()) {
+                    crash("@neocomputers.errors.ENOCPU")
+                } else if(getMachineComponentsUsed() > getMachineComponentsTotal()) {
+                    crash("@neocomputers.errors.E2BIG")
+                } else if (!consumeEnergy(1)) {
+                    crash("@neocomputers.errors.ENOENJ")
+                }
+            }
+        }
+
+        override fun received(message: Networking.Message) {
+            super.received(message)
+            if(message is Networking.ClassicPacket) {
+                NeoComputers.LOGGER.info("machine $address got $message from ${message.sender.address}")
+            }
+        }
+
+        override fun getComponent() = NNComponent("computer")
+    }
+
+    val redstoneIn = Array(Direction.entries.size) {0}
+    val redstoneOut = Array(Direction.entries.size) {0}
+
+    fun refetchRedstone(dir: Direction) {
+        val src = blockPos.offset(dir.stepX, dir.stepY, dir.stepZ)
+        val cur = level?.getSignal(src, dir) ?: 0
+        val idx = dir.ordinal
+        if(redstoneIn[idx] != cur) {
+            onRedstoneSignalChanged(dir, redstoneIn[idx], cur)
+        }
+        redstoneIn[idx] = cur
+    }
+
+    fun refetchAllRedstone() {
+        Direction.entries.forEach { refetchRedstone(it) }
+    }
+
+    fun sendMachineEvent(event: MachineEvent) {
+        stacks.forEach {
+            val item = it.item
+            if(item is ComponentItem) {
+                item.onMachineEvent(it, this, event)
+            }
+        }
+        Networking.emitMessage(deviceNode, Networking.ComputerEvent(deviceNode, event))
+    }
+
+    fun onRedstoneSignalChanged(dir: Direction, oldValue: Int, newValue: Int) {
+        sendMachineEvent(MachineRedstoneEvent(this, dir, oldValue, newValue))
+        Networking.emitMessage(deviceNode, Networking.ComputerUncheckedSignal(deviceNode, "redstone_changed", arrayOf(deviceNode.address.toString(), dir.ordinal, oldValue, newValue)))
+        NeoComputers.LOGGER.info("redstone in direction ${dir.name} changed from $oldValue to $newValue")
+        if(oldValue == 0) {
+            // Rising edge
+            start()
+        }
+        setChanged()
+    }
+
+    override fun getMachineBlockPosition(): BlockPos = blockPos
+    override fun getMachineLevel(): Level = level!!
+
+    override fun isRunning(): Boolean = isOn
+
+    fun setRunning(value: Boolean) {
+        if(isOn == value) return
+        deviceNode.markChanged()
+        NeoComputers.LOGGER.info("[${deviceNode.address}] Going from $isOn to $value")
+        isOn = value
+        val world = level ?: return
+        blockState?.setValue(CaseBlock.COMPUTER_RUNNING, isOn)
+        if(world.isClientSide) {
+            if(value) {
+                soundInstance = ComputerRunningSoundInstance(this, Sounds.COMPUTER_RUNNING.get(), SoundSource.AMBIENT)
+                Minecraft.getInstance().soundManager.play(soundInstance!!)
+            } else {
+                Minecraft.getInstance().soundManager.stop(soundInstance!!)
+                soundInstance = null
+            }
+            return
+        }
+        // Server-side stuff!!
+        sendMachineEvent(MachinePowerEvent(this, isOn))
+        Networking.emitMessage(deviceNode, Networking.ClassicPacket(deviceNode, deviceNode.address.toString(), null, 1, listOf(), 0))
+    }
+
+    override fun start(): Boolean {
+        if(isOn) return true
+        err = null
+        val architectures = getMachineArchitectures()
+        // Beep patterns taken from https://github.com/MightyPirates/OpenComputers/blob/571482db88080d56329e8f8cf0db2a90825bf1d7/src/main/scala/li/cil/oc/server/machine/Machine.scala
+        if(architectures.isEmpty()) {
+            crash("@neocomputers.errors.ENOCPU")
+            beepAsync("-..")
+            return false
+        }
+        if(getMachineComponentsUsed() > getMachineComponentsTotal()) {
+            crash("@neocomputers.errors.E2BIG")
+            beepAsync("-..")
+            return false
+        }
+        // less than 20% energy is bad
+        if(deviceNode.energy < deviceNode.energyCapacity/5) {
+            crash("@neocomputers.errors.ENOENJ")
+            // we add a beep for the special case where we do have a little bit of energy :P
+            if(deviceNode.energy > 0) beepAsync("..")
+            return false
+        }
+        if(getMachineMemoryTotal() == 0L) {
+            crash("@neocomputers.errors.ENOMEM")
+            beepAsync("-.")
+            return false
+        }
+        if(arch !in architectures) {
+            // Just pick one! TODO: consult EEPROM first
+            arch = architectures.first()
+        }
+        beepAsync(".")
+        setRunning(true)
+        return isOn
+    }
+
+    override fun stop(): Boolean {
+        if(!isOn) return false
+        setRunning(false)
+        return isOn
+    }
+
+    override fun crash(error: String): Boolean {
+        beepAsync("--")
+        sendMachineEvent(MachineCrashEvent(this, error))
+        setRunning(false)
+        err = error
+        return true
+    }
+
+    override fun getLastError(): String? = err
+
+    override fun getMachineNode() = deviceNode
+
+    override fun getRedstoneInput(direction: Direction): Int = redstoneIn[direction.ordinal]
+
+    override fun getRedstoneOutput(direction: Direction): Int = redstoneOut[direction.ordinal]
+
+    override fun setRedstoneOutput(direction: Direction, newValue: Int): Int {
+        val idx = direction.ordinal
+        val old = redstoneOut[idx]
+        redstoneOut[idx] = newValue
+        return old
+    }
+
+    override fun beepAsync(pattern: String, frequency: Int, duration: Duration, volume: Double): Boolean {
+        NodeSynchronizer.emitBeep(level!!, NodeSynchronizer.BeepDataPayload(getMachineBlockPosition(), pattern, frequency, duration, volume))
+        return true
+    }
+
+    override fun signalDiskActivity(delay: Int) {
+        diskActivityTime = max(delay, diskActivityTime)
+    }
+
+    override fun signalNetworkActivity(delay: Int) {
+        networkActivityTime = max(delay, networkActivityTime)
+    }
+
+    override fun getMachineMemoryTotal(): Long = stacks.mapNotNull { (it.item as? ComponentItem)?.getMemoryCapacity(it) }.sum().toLong()
+    override fun getMachineMemoryUsed(): Long = 0
+    override fun getMachineComponentsUsed(): Long = deviceNode.getReachable().count { it.getComponent() != null }.toLong()
+    override fun getMachineComponentsTotal(): Long = stacks.mapNotNull { (it.item as? ComponentItem)?.getComponentCapacity(it) }.sum().toLong()
+    override fun getMachineArchitecture() = arch
+    override fun getMachineArchitectures() = stacks.mapNotNull { (it.item as? ComponentItem)?.getArchitecturesProvided(it) }.flatten().toSet()
+    override fun setMachineArchitecture(arch: String) {
+        if(this.arch == arch) return
+        this.arch = arch
+        if(isRunning()) {
+            stop()
+            start()
+        }
+    }
+
+    override fun getItems(): NonNullList<ItemStack> = stacks
+
+    override fun stillValid(player: Player): Boolean = !this.isRemoved
+
+    override fun loadAdditional(tag: CompoundTag, registries: HolderLookup.Provider) {
+        super.loadAdditional(tag, registries)
+        deviceNode.energy = min(deviceNode.energyCapacity, tag.getLong("energy"))
+        //isOn = compoundTag.getBoolean("powerOn")
+        ContainerHelper.loadAllItems(tag, getItems(), registries)
+    }
+
+    override fun saveAdditional(compoundTag: CompoundTag, provider: HolderLookup.Provider) {
+        super.saveAdditional(compoundTag, provider)
+        compoundTag.putLong("energy", deviceNode.energy)
+        //compoundTag.putBoolean("powerOn", isOn)
+        ContainerHelper.saveAllItems(compoundTag, getItems(), provider)
+    }
+
+    override fun getDisplayName(): Component? = Component.literal("Computer")
+    override fun createMenu(i: Int, inventory: Inventory, player: Player) = CaseMenu(i, inventory, this)
+
+    override fun setRemoved() {
+        setRunning(false)
+        super.setRemoved()
+    }
+
+    override fun canPlaceItem(slot: Int, stack: ItemStack): Boolean = false
+    override fun canTakeItem(target: Container, slot: Int, stack: ItemStack): Boolean = false
+}

src/main/kotlin/org/neoflock/neocomputers/entity/CombustionGeneratorBlockEntity.kt

@@ -0,0 +1,100 @@
+package org.neoflock.neocomputers.entity
+
+import net.minecraft.core.BlockPos
+import net.minecraft.core.Direction
+import net.minecraft.core.HolderLookup
+import net.minecraft.core.NonNullList
+import net.minecraft.nbt.CompoundTag
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.network.chat.Component
+import net.minecraft.server.level.ServerPlayer
+import net.minecraft.world.ContainerHelper
+import net.minecraft.world.MenuProvider
+import net.minecraft.world.entity.player.Inventory
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.level.Level
+import net.minecraft.world.level.block.state.BlockState
+import org.neoflock.neocomputers.block.CombustionGeneratorBlock
+import org.neoflock.neocomputers.block.SingleDeviceBlockEntity
+import org.neoflock.neocomputers.gui.menu.CombustionGeneratorMenu
+import org.neoflock.neocomputers.network.DeviceNode
+import org.neoflock.neocomputers.network.PowerRole
+import org.neoflock.neocomputers.utils.GenericContainer
+import org.neoflock.neocomputers.utils.ContainerUtils
+import kotlin.math.min
+
+class CombustionGeneratorBlockEntity(blockPos: BlockPos, blockState: BlockState) : SingleDeviceBlockEntity(BlockEntities.COMBUSTGEN_ENTITY.get(), blockPos, blockState), GenericContainer, MenuProvider {
+    val energyPerTick: Long = 50
+
+    var burningTimeRemaining: Int = 0
+
+    override val deviceNode = object : DeviceNode() {
+        override var powerRole = PowerRole.GENERATOR
+        override var energyCapacity: Long = 100000
+
+        override fun encodeScreenData(player: ServerPlayer, buf: FriendlyByteBuf) {
+            buf.writeLong(energy)
+            buf.writeLong(energyCapacity)
+        }
+    }
+
+    val stacks: NonNullList<ItemStack> = NonNullList<ItemStack>.withSize(1, ItemStack.EMPTY)
+
+    override fun canPlaceItem(i: Int, itemStack: ItemStack): Boolean {
+        return ContainerUtils.isBurningFuel(itemStack)
+    }
+
+    override fun getItems(): NonNullList<ItemStack> = stacks
+
+    override fun stillValid(player: Player): Boolean {
+        return !this.isRemoved
+    }
+
+    override fun tickDevice(level: Level) {
+        super.tickDevice(level)
+        // TODO: give us a block state tag for active
+
+        // keep combusting and shi
+        if(burningTimeRemaining > 0) {
+            burningTimeRemaining--
+            deviceNode.giveEnergy(energyPerTick)
+            setChanged()
+            return
+        }
+
+        // no point
+        if(deviceNode.energy >= deviceNode.energyCapacity) return;
+
+        // :fire:
+        val fuel = stacks[0]
+        if(fuel.isEmpty) return
+
+        burningTimeRemaining = ContainerUtils.getBurningTime(fuel) ?: 0
+        setChanged()
+        fuel.count--
+    }
+
+    override fun getDisplayName(): Component? = Component.translatable("block.neocomputers.combustgen")
+
+    override fun createMenu(i: Int, inventory: Inventory, player: Player) = CombustionGeneratorMenu(i, inventory, this)
+
+    override fun setChanged() {
+        super.setChanged()
+        level?.setBlockAndUpdate(blockPos, blockState.setValue(CombustionGeneratorBlock.COMBUSTGEN_ACTIVE, burningTimeRemaining > 0))
+    }
+
+    override fun loadAdditional(compoundTag: CompoundTag, provider: HolderLookup.Provider) {
+        super.loadAdditional(compoundTag, provider)
+        deviceNode.energy = min(deviceNode.energyCapacity, compoundTag.getLong("energy"))
+        burningTimeRemaining = compoundTag.getInt("burningTimeRemaining")
+        ContainerHelper.loadAllItems(compoundTag, getItems(), provider)
+    }
+
+    override fun saveAdditional(compoundTag: CompoundTag, provider: HolderLookup.Provider) {
+        super.saveAdditional(compoundTag, provider)
+        compoundTag.putLong("energy", deviceNode.energy)
+        compoundTag.putInt("burningTimeRemaining", burningTimeRemaining)
+        ContainerHelper.saveAllItems(compoundTag, getItems(), provider)
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/entity/MachineEntity.kt

@@ -0,0 +1,61 @@
+package org.neoflock.neocomputers.entity
+
+import net.minecraft.core.BlockPos
+import net.minecraft.core.Direction
+import net.minecraft.world.level.Level
+import net.minecraft.world.phys.Vec3
+import org.neoflock.neocomputers.network.DeviceNode
+import java.time.Duration
+
+abstract class MachineEvent {
+    abstract val machine: MachineEntity
+}
+
+data class MachineRedstoneEvent(override val machine: MachineEntity, val side: Direction, val oldValue: Int, val newValue: Int): MachineEvent()
+data class MachinePowerEvent(override val machine: MachineEntity, val nowRunning: Boolean): MachineEvent()
+data class MachineCrashEvent(override val machine: MachineEntity, val error: String): MachineEvent()
+
+interface ComponentUser {
+    // Block position of machine, for wireless tech
+    fun getMachineBlockPosition(): BlockPos
+    fun getMachinePrecisePosition(): Vec3 = getMachineBlockPosition().center
+    fun getMachineLevel(): Level
+
+    fun getMachineNode(): DeviceNode
+}
+
+interface MachineEntity: ComponentUser {
+    // Pattern can have dots (.), dashes (-) and spaces ( ).
+    // Each character is duration long, and has a 50ms break.
+    // For non-short ones, which are typically reserved only for hardware interactions,
+    // the duration is doubled.
+    // Architectures should only use short ones.
+    fun beepAsync(pattern: String, frequency: Int = 1000, duration: Duration = Duration.ofMillis(200), volume: Double = 1.0): Boolean
+    // Signals that disk activity is happening for at least that delay
+    fun signalDiskActivity(delay: Int)
+    // signal network activity to a machine
+    fun signalNetworkActivity(delay: Int)
+
+    fun isRunning(): Boolean
+    fun start(): Boolean
+    fun stop(): Boolean
+    fun crash(error: String): Boolean
+    fun getLastError(): String?
+
+    // Some metadata
+    fun getMachineMemoryTotal(): Long
+    fun getMachineMemoryUsed(): Long
+    fun getMachineComponentsUsed(): Long
+    fun getMachineComponentsTotal(): Long
+    fun getMachineArchitecture(): String
+    fun getMachineArchitectures(): Set<String>
+    fun setMachineArchitecture(arch: String)
+
+    // Redstone signals
+    fun getRedstoneInput(direction: Direction): Int
+    fun getRedstoneOutput(direction: Direction): Int
+    // returns the old one
+    fun setRedstoneOutput(direction: Direction, newValue: Int): Int
+}
+
+// TODO: add dummy machine class which implements the machine entity interface meant to be used on the client

src/main/kotlin/org/neoflock/neocomputers/entity/RackEntity.kt

@@ -0,0 +1,134 @@
+package org.neoflock.neocomputers.entity
+
+import dev.architectury.registry.menu.ExtendedMenuProvider
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.core.BlockPos
+import net.minecraft.core.Direction
+import net.minecraft.core.HolderLookup
+import net.minecraft.core.NonNullList
+import net.minecraft.nbt.CompoundTag
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.network.chat.Component
+import net.minecraft.network.protocol.Packet
+import net.minecraft.network.protocol.game.ClientGamePacketListener
+import net.minecraft.server.level.ServerPlayer
+import net.minecraft.world.ContainerHelper
+import net.minecraft.world.MenuProvider
+import net.minecraft.world.entity.player.Inventory
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.inventory.AbstractContainerMenu
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.level.block.entity.AbstractFurnaceBlockEntity
+import net.minecraft.world.level.block.entity.BlockEntity
+import net.minecraft.world.level.block.entity.ChestBlockEntity
+import net.minecraft.world.level.block.entity.FurnaceBlockEntity
+import net.minecraft.world.level.block.state.BlockState
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.block.DeviceBlockEntity
+import org.neoflock.neocomputers.gui.menu.RackMenu
+import org.neoflock.neocomputers.network.DeviceNode
+import org.neoflock.neocomputers.network.Networking
+import org.neoflock.neocomputers.utils.ContainerUtils
+import org.neoflock.neocomputers.utils.GenericContainer
+
+class RackEntity(pos: BlockPos, state: BlockState) : DeviceBlockEntity(BlockEntities.RACK_ENTITY.get(), pos, state), ExtendedMenuProvider, GenericContainer {
+    val stacks: NonNullList<ItemStack> = NonNullList<ItemStack>.withSize(4, ItemStack.EMPTY)
+
+    var conns = mutableListOf(
+        -1, -1, -1, -1,
+        -1, -1, -1, -1,
+        -1, -1, -1, -1,
+        -1, -1, -1, -1
+    )
+
+    var relayMode = false
+
+    val node: DeviceNode = object : DeviceNode() {
+        override var reachability: Networking.Visibility = Networking.Visibility.NONE
+
+        override fun writeFullStateCommit(buf: FriendlyByteBuf) {
+            super.writeFullStateCommit(buf)
+            buf.writeBoolean(relayMode)
+
+            val tag = CompoundTag() // better way to do this, a better way i do not care to find atm
+            ContainerHelper.saveAllItems(tag, stacks, level!!.registryAccess())
+            buf.writeNbt(tag)
+
+
+            for (conn in conns) {
+                buf.writeInt(conn)
+            }
+        }
+
+        override fun processCommit(buf: FriendlyByteBuf) {
+            super.processCommit(buf)
+            relayMode = buf.readBoolean()
+            val tag = buf.readNbt()
+            ContainerHelper.loadAllItems(tag!!, stacks, level!!.registryAccess())
+
+            for (i in 0..15) {
+                conns[i] = buf.readInt()
+            }
+            markChanged()
+            setChanged()
+        }
+
+        override fun processScreenInteraction(player: ServerPlayer, buf: FriendlyByteBuf) {
+            super.processScreenInteraction(player, buf)
+            relayMode = buf.readBoolean()
+
+            val slot = buf.readInt()
+            conns[slot*4+0] = buf.readInt()
+            conns[slot*4+1] = buf.readInt()
+            conns[slot*4+2] = buf.readInt()
+            conns[slot*4+3] = buf.readInt()
+
+            markChanged()
+            setChanged()
+        }
+        override fun encodeScreenData(player: ServerPlayer, buf: FriendlyByteBuf) { // TODO: set this up so other players can mess with racks
+            super.encodeScreenData(player, buf)
+        }
+    }
+
+    override fun setChanged() {
+        super.setChanged()
+        node.markChanged()
+    }
+
+    override fun getDisplayName(): Component? = Component.literal("Rack")
+
+    override fun createMenu(i: Int, inventory: Inventory, player: Player): AbstractContainerMenu {
+        return RackMenu(i, inventory, this)
+    }
+
+    override fun getDeviceNodes(): List<DeviceNode> = listOf(node)
+
+    override fun getNodeFromSide(directionToRequester: Direction): DeviceNode? = node
+
+
+    override fun loadAdditional(tag: CompoundTag, registries: HolderLookup.Provider) {
+        super.loadAdditional(tag, registries)
+        ContainerHelper.loadAllItems(tag, getItems(), registries)
+        relayMode = tag.getBoolean("relay")
+
+        val connarray = tag.getIntArray("conns")
+        if (connarray.size == 16) conns = connarray.toMutableList()
+        setChanged()
+    }
+
+    override fun saveAdditional(tag: CompoundTag, registries: HolderLookup.Provider) {
+        super.saveAdditional(tag, registries)
+        ContainerHelper.saveAllItems(tag, getItems(), registries)
+        tag.putBoolean("relay", relayMode)
+        tag.putIntArray("conns", conns.toIntArray())
+    }
+
+//    override fun getItems(): NonNullList<ItemStack> = items
+    override fun getItems(): NonNullList<ItemStack> = stacks
+
+    override fun stillValid(player: Player): Boolean = true
+    override fun saveExtraData(buf: FriendlyByteBuf?) {
+        buf!!.writeBlockPos(blockPos)
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/entity/RobotEntity.kt

@@ -0,0 +1,16 @@
+package org.neoflock.neocomputers.entity
+
+import net.minecraft.client.model.geom.ModelPart
+import net.minecraft.core.BlockPos
+import net.minecraft.world.level.block.entity.BlockEntity
+import net.minecraft.world.level.block.state.BlockState
+import org.neoflock.neocomputers.NeoComputers
+
+class RobotEntity(pos: BlockPos, state: BlockState) : BlockEntity(BlockEntities.ROBOT_ENTITY.get(), pos, state,) {
+    val body: ModelPart? = null
+    val name = "Diddyx" //TODO: names
+
+    init {
+        NeoComputers.LOGGER.info("yooo")
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/entity/ScreenEntity.kt

@@ -0,0 +1,117 @@
+package org.neoflock.neocomputers.entity
+
+import net.minecraft.core.BlockPos
+import net.minecraft.locale.Language
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.server.level.ServerPlayer
+import net.minecraft.world.level.Level
+import net.minecraft.world.level.block.state.BlockState
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.block.SingleDeviceBlockEntity
+import org.neoflock.neocomputers.gui.buffer.BufferRenderer
+import org.neoflock.neocomputers.network.DeviceNode
+import org.neoflock.neocomputers.network.NNComponent
+import org.neoflock.neocomputers.network.Networking
+import org.neoflock.neocomputers.utils.GPUChar
+import org.neoflock.neocomputers.utils.TextBuffer
+import kotlin.text.ifEmpty
+
+class ScreenEntity(blockPos: BlockPos, blockState: BlockState) :
+    SingleDeviceBlockEntity(BlockEntities.SCREEN_ENTITY.get(), blockPos, blockState) {
+
+    var lastError: String? = null
+    var isOn: Boolean = false
+
+    override val deviceNode = object : DeviceNode() {
+        override fun received(message: Networking.Message) {
+            super.received(message)
+            if(message is Networking.ComputerEvent) {
+                val mEnv = message.machineEvent
+                NeoComputers.LOGGER.info("Got message $mEnv!")
+                if(mEnv is MachinePowerEvent) {
+                    if(mEnv.nowRunning) {
+                        lastError = null
+                        textBuf.fill(0, 0, textBuf.width, textBuf.height, GPUChar(' '))
+                        textBuf.set(0, 0, address.toString())
+                    }
+                    isOn = mEnv.nowRunning
+                    markChanged()
+                }
+                if(mEnv is MachineCrashEvent) {
+                    lastError = mEnv.error
+                    markChanged()
+                }
+            }
+        }
+
+        override fun encodeScreenData(player: ServerPlayer, buf: FriendlyByteBuf) {
+            super.encodeScreenData(player, buf)
+            textBuf.encodeContents(buf)
+        }
+
+        override fun writeFullStateCommit(buf: FriendlyByteBuf) {
+            super.writeFullStateCommit(buf)
+            buf.writeUUID(address)
+            buf.writeBoolean(isOn)
+            buf.writeUtf(lastError ?: "")
+            textBuf.encodeContents(buf)
+        }
+
+        override fun processCommit(buf: FriendlyByteBuf) {
+            super.processCommit(buf)
+            if(Networking.changeNodeAddress(this, buf.readUUID())) createScreenTexture()
+            isOn = buf.readBoolean()
+            lastError = buf.readUtf().ifEmpty { null }
+            textBuf.decodeContents(buf)
+        }
+
+        override fun getComponent() = NNComponent("screen")
+    }
+    var bound = "screen/unbound"
+
+    val textBuf = TextBuffer(50, 16)
+
+    private var cleanRenderer: () -> Unit = { } // TODO: THIS SUCKS, FIND A BETTER WAY
+
+    override fun tickDevice(level: Level) {
+        super.tickDevice(level)
+        cleanRenderer()
+        createScreenTexture()
+    }
+
+    override fun setRemoved() {
+        super.setRemoved()
+        bound = "screen/unbound" // ensure no missing texture is displayed
+        cleanRenderer()
+    }
+
+    private fun createScreenTexture() {
+        bound = "screen/"+deviceNode.address.toString().replace("-", "_")
+        if (level!!.isClientSide) {
+            if(lastError == null) {
+                if(!isOn) {
+                    textBuf.fill(0, 0, textBuf.width, textBuf.height)
+                }
+                val renderer = BufferRenderer(ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, bound), textBuf)
+                renderer.drawBuffer()
+                cleanRenderer = { renderer.clean() }
+            } else {
+                var trueError = lastError!!
+                if(trueError.startsWith("@")) {
+                    val trans = trueError.substring(1)
+                    val lang = Language.getInstance()
+                    trueError = lang.getOrDefault("neocomputers.computer.errorNoMsg", "Error: ") + lang.getOrDefault(trans)
+                }
+                val throwAwayBuf = TextBuffer(50, 16)
+                val fg = 0xFFFFFF
+                val bg = 0x2B68A6
+                throwAwayBuf.fill(0, 0, throwAwayBuf.width, throwAwayBuf.height, GPUChar(' ', fg, bg))
+                throwAwayBuf.set((throwAwayBuf.width - trueError.length) / 2, throwAwayBuf.height/2, trueError, fg, bg)
+                val renderer = BufferRenderer(ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, bound), throwAwayBuf)
+                renderer.drawBuffer()
+                cleanRenderer = { renderer.clean() }
+            }
+        }
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/entity/SolarGeneratorBlockEntity.kt

@@ -0,0 +1,38 @@
+package org.neoflock.neocomputers.entity
+
+import net.minecraft.core.BlockPos
+import net.minecraft.core.Direction
+import net.minecraft.core.HolderLookup
+import net.minecraft.nbt.CompoundTag
+import net.minecraft.world.level.Level
+import net.minecraft.world.level.block.state.BlockState
+import org.neoflock.neocomputers.block.SingleDeviceBlockEntity
+import org.neoflock.neocomputers.network.DeviceNode
+import org.neoflock.neocomputers.network.PowerRole
+
+class SolarGeneratorBlockEntity(blockPos: BlockPos, blockState: BlockState) : SingleDeviceBlockEntity(BlockEntities.SOLARGEN_ENTITY.get(), blockPos, blockState) {
+    val energyPerTick: Long = 10
+
+    override val deviceNode = object : DeviceNode() {
+        override var powerRole: PowerRole = PowerRole.GENERATOR
+        override var energyCapacity: Long = 50000
+    }
+
+    override fun tickDevice(level: Level) {
+        super.tickDevice(level)
+        val l = level
+        if(l.isDay) {
+            deviceNode.giveEnergy(energyPerTick)
+        }
+    }
+
+    override fun loadAdditional(compoundTag: CompoundTag, provider: HolderLookup.Provider) {
+        super.loadAdditional(compoundTag, provider)
+        deviceNode.energy = compoundTag.getLong("energy")
+    }
+
+    override fun saveAdditional(compoundTag: CompoundTag, provider: HolderLookup.Provider) {
+        super.saveAdditional(compoundTag, provider)
+        compoundTag.putLong("energy", deviceNode.energy)
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/entity/render/CaseEntityRenderer.kt

@@ -0,0 +1,69 @@
+package org.neoflock.neocomputers.entity.render
+
+import com.mojang.blaze3d.vertex.DefaultVertexFormat
+import com.mojang.blaze3d.vertex.PoseStack
+import com.mojang.blaze3d.vertex.VertexConsumer
+import com.mojang.blaze3d.vertex.VertexFormat
+import com.mojang.math.Axis
+import net.minecraft.client.renderer.LightTexture
+import net.minecraft.client.renderer.MultiBufferSource
+import net.minecraft.client.renderer.RenderStateShard
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.client.renderer.blockentity.BlockEntityRenderer
+import net.minecraft.client.renderer.blockentity.BlockEntityRendererProvider
+import net.minecraft.core.Direction
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.block.CaseBlock
+import org.neoflock.neocomputers.entity.CaseBlockEntity
+
+class CaseEntityRenderer(private val context: BlockEntityRendererProvider.Context?) :
+    BlockEntityRenderer<CaseBlockEntity> {
+
+    val OFF = 0xFF5F855E.toInt()
+    val GREEN = 0xFF4EDC5E.toInt()
+    val RED = 0xFFff102B.toInt()
+
+    val BLINKTIME: Long = 10 // in ticks
+
+    val RENDER_TYPE = RenderType.create("nc_case", DefaultVertexFormat.POSITION_COLOR_LIGHTMAP, VertexFormat.Mode.QUADS,
+        RenderType.TRANSIENT_BUFFER_SIZE, RenderType.CompositeState.builder()
+            .setShaderState(RenderStateShard.POSITION_COLOR_LIGHTMAP_SHADER)
+            .setLightmapState(RenderStateShard.LightmapStateShard.LIGHTMAP)
+            .createCompositeState(false))
+
+    override fun render(ent: CaseBlockEntity, partialTick: Float, mat: PoseStack, bufferSource: MultiBufferSource, packedLight: Int, packedOverlay: Int) {
+        val buffer = bufferSource.getBuffer(RENDER_TYPE);
+
+        mat.pushPose()
+        handleDirection(ent.blockState.getValue(CaseBlock.FACING), mat)
+
+        mat.translate(5/16F, 14/16F, 0.0001F)
+        if (ent.isOn) drawLED(buffer, mat.last(), 3F)
+        else if (ent.getLastError() != null) { // if else hell
+            if ((ent.level!!.dayTime/BLINKTIME) % 2 == 1.toLong()) drawLED(buffer, mat.last(), 3F, RED)
+            else drawLED(buffer, mat.last(), 3F, OFF, packedLight)
+        } else drawLED(buffer, mat.last(), 3F, OFF, packedLight)
+
+        mat.translate(6/16F, 0F, 0F)
+        drawLED(buffer, mat.last(), 2F, if (ent.diskActivityTime > 0) GREEN else OFF, if (ent.diskActivityTime > 0) LightTexture.FULL_BRIGHT else packedLight)
+
+        mat.popPose()
+
+    }
+    private fun drawLED(buffer: VertexConsumer, mat: PoseStack.Pose, width: Float, color: Int = GREEN, light: Int = LightTexture.FULL_BRIGHT) {
+        buffer.addVertex(mat, width/16F, 0F, 0F).setColor(color).setLight(light)
+        buffer.addVertex(mat, width/16F, 1/16F, 0F).setColor(color).setLight(light)
+        buffer.addVertex(mat, 0F, 1/16F, 0F).setColor(color).setLight(light)
+        buffer.addVertex(mat, 0F, 0F, 0F).setColor(color).setLight(light)
+    }
+
+    private fun handleDirection(facing: Direction, mat: PoseStack) {
+        when (facing) {
+            Direction.SOUTH -> { mat.translate(0F, 0F, 1F) }
+            Direction.EAST -> { mat.mulPose(Axis.YP.rotationDegrees(90F)); mat.translate(-1F, 0F, 1F) }
+            Direction.WEST -> { mat.mulPose(Axis.YN.rotationDegrees(90F)); }
+            Direction.NORTH -> {mat.mulPose(Axis.YP.rotationDegrees(180F)); mat.translate(-1F, 0F, 0F) }
+            else -> return
+        }
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/entity/render/RackEntityRenderer.kt

@@ -0,0 +1,39 @@
+package org.neoflock.neocomputers.entity.render
+
+import com.mojang.authlib.minecraft.client.MinecraftClient
+import com.mojang.blaze3d.vertex.PoseStack
+import net.minecraft.client.Minecraft
+import net.minecraft.client.renderer.LevelRenderer
+import net.minecraft.client.renderer.LightTexture
+import net.minecraft.client.renderer.MultiBufferSource
+import net.minecraft.client.renderer.block.ModelBlockRenderer
+import net.minecraft.client.renderer.blockentity.BlockEntityRenderer
+import net.minecraft.client.renderer.blockentity.BlockEntityRendererProvider
+import net.minecraft.world.level.LightLayer
+import net.minecraft.world.level.dimension.DimensionType
+import net.minecraft.world.level.lighting.BlockLightEngine
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.entity.RackEntity
+import org.neoflock.neocomputers.item.RackItem
+
+class RackEntityRenderer(val context: BlockEntityRendererProvider.Context) : BlockEntityRenderer<RackEntity> {
+
+    override fun render(ent: RackEntity, partialTick: Float, poseStack: PoseStack, source: MultiBufferSource, packedLight: Int, packedOverlay: Int) {
+        poseStack.pushPose()
+        poseStack.translate(1/16f, 11/16f, 1/16f)
+
+        val items = ent.stacks
+        for (i in 0..3) {
+            if (items[i].item is RackItem) {
+                val item = items[i].item as RackItem
+                item.render(source, poseStack, packedLight, 2f+(3*i))
+            }
+            poseStack.translate(0f, -3/16f, 0f)
+        }
+//        val render_slot = (ent.level!!.dayTime/40)%4 // this is purely temporary type shit like true alpha shit, anyway it go to 0-3, change and test it if you want
+//        poseStack.translate(0f, (render_slot)*-3/16f, 0f)
+//        val server = object : RackItem { override fun render_lights(source: MultiBufferSource, stack: PoseStack, light: Int) { } }
+//        server.render(source, poseStack, packedLight, 2f+(3*render_slot)) // who knows atp
+        poseStack.popPose()
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/entity/render/RelayEntityRenderer.kt

@@ -0,0 +1,66 @@
+package org.neoflock.neocomputers.entity.render
+
+import com.mojang.blaze3d.vertex.DefaultVertexFormat
+import com.mojang.blaze3d.vertex.PoseStack
+import com.mojang.blaze3d.vertex.VertexFormat
+import com.mojang.math.Axis
+import net.minecraft.client.renderer.GameRenderer
+import net.minecraft.client.renderer.MultiBufferSource
+import net.minecraft.client.renderer.RenderStateShard
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.client.renderer.blockentity.BlockEntityRenderer
+import net.minecraft.client.renderer.blockentity.BlockEntityRendererProvider
+import net.minecraft.resources.ResourceLocation
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.block.RelayEntity
+import java.util.Timer
+import kotlin.math.min
+
+class RelayEntityRenderer(val context: BlockEntityRendererProvider.Context?): BlockEntityRenderer<RelayEntity> {
+    val RELAY_ON_TEX = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/block/relay_side_on.png")
+
+    val RENDER_TYPE: RenderType =
+        RenderType.create(
+            "nc_screen",
+            DefaultVertexFormat.POSITION_TEX_COLOR,
+            VertexFormat.Mode.QUADS,
+            RenderType.TRANSIENT_BUFFER_SIZE, RenderType.CompositeState.builder().
+            setShaderState(RenderStateShard.ShaderStateShard(GameRenderer::getPositionTexColorShader)).
+            setTextureState(RenderStateShard.TextureStateShard(RELAY_ON_TEX, false, false))
+                .createCompositeState(false))
+
+    override fun render(
+        blockEntity: RelayEntity,
+        partialTick: Float,
+        mat: PoseStack,
+        bufferSource: MultiBufferSource,
+        packedLight: Int,
+        packedOverlay: Int
+    ) {
+        if(blockEntity.activityTickLeft == 0) return
+
+        val alpha = min((blockEntity.activityTickLeft.toFloat() * 255 / 20).toInt(), 255)
+
+        for(i in 0..<4) {
+            mat.pushPose()
+
+            val antiZFight = 0.001F
+
+            mat.rotateAround(Axis.YN.rotationDegrees(90F * i), 0.5F, 0.5F, 0.5F)
+            mat.translate(0F, 0F, 1F + antiZFight)
+
+            val width = 1F
+            val height = 1F
+            val bx = 0F
+            val by = 0F
+
+            val buffer = bufferSource.getBuffer(RENDER_TYPE)
+            buffer.addVertex(mat.last(), bx + width, by, 0f).setUv(1f, 1f).setColor(alpha, alpha, alpha, alpha)
+            buffer.addVertex(mat.last(), bx + width, by + height, 0f).setUv(1f, 0f).setColor(alpha, alpha, alpha, alpha)
+            buffer.addVertex(mat.last(), bx, by + height, 0f).setUv(0f, 0f).setColor(alpha, alpha, alpha, alpha)
+            buffer.addVertex(mat.last(), bx, by, 0f).setUv(0f, 1f).setColor(alpha, alpha, alpha, alpha)
+
+            mat.popPose()
+        }
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/entity/render/RobotEntityRenderer.kt

@@ -0,0 +1,122 @@
+package org.neoflock.neocomputers.entity.render
+
+import com.mojang.blaze3d.systems.RenderSystem
+import com.mojang.blaze3d.vertex.DefaultVertexFormat
+import com.mojang.blaze3d.vertex.PoseStack
+import com.mojang.blaze3d.vertex.VertexConsumer
+import com.mojang.blaze3d.vertex.VertexFormat
+import com.mojang.math.Axis
+import net.minecraft.client.Minecraft
+import net.minecraft.client.gui.Font
+import net.minecraft.client.gui.GuiGraphics
+import net.minecraft.client.model.geom.ModelPart
+import net.minecraft.client.renderer.GameRenderer
+import net.minecraft.client.renderer.ItemBlockRenderTypes
+import net.minecraft.client.renderer.MultiBufferSource
+import net.minecraft.client.renderer.RenderStateShard
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.client.renderer.RenderType.CompositeState
+import net.minecraft.client.renderer.block.ModelBlockRenderer
+import net.minecraft.client.renderer.block.model.BakedQuad
+import net.minecraft.client.renderer.blockentity.BlockEntityRenderer
+import net.minecraft.client.renderer.blockentity.BlockEntityRendererProvider
+import net.minecraft.client.renderer.entity.LivingEntityRenderer
+import net.minecraft.client.renderer.texture.OverlayTexture
+import net.minecraft.client.renderer.texture.TextureAtlas
+import net.minecraft.client.renderer.texture.TextureAtlasSprite
+import net.minecraft.client.resources.model.BakedModel
+import net.minecraft.client.resources.model.Material
+import net.minecraft.client.resources.model.ModelResourceLocation
+import net.minecraft.client.resources.model.ModelState
+import net.minecraft.core.Direction
+import net.minecraft.network.chat.Component
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.util.RandomSource
+import net.minecraft.world.item.DyeColor
+import net.minecraft.world.phys.Vec3
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.block.model.RobotModel
+import org.neoflock.neocomputers.entity.RobotEntity
+import kotlin.math.sin
+
+class RobotEntityRenderer(val context: BlockEntityRendererProvider.Context) : BlockEntityRenderer<RobotEntity> {
+    val atlas: (Material) -> TextureAtlasSprite = { m ->
+        Minecraft.getInstance().getTextureAtlas(m.atlasLocation()).apply(m.texture())
+    }
+    val loc: ResourceLocation = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "robot")
+    var model: BakedModel? = Minecraft.getInstance().modelManager.getModel(ModelResourceLocation.inventory(loc))
+    val renderer: ModelBlockRenderer = ModelBlockRenderer(Minecraft.getInstance().blockColors) // so ass
+
+    val STREAK_RENDER_TYPE = RenderType.create("nc_robot_streak", DefaultVertexFormat.POSITION_TEX_COLOR, VertexFormat.Mode.QUADS, RenderType.TRANSIENT_BUFFER_SIZE,
+        CompositeState.builder()
+            .setShaderState(RenderStateShard.ShaderStateShard { GameRenderer.getPositionTexColorShader() })
+            .setTransparencyState(RenderStateShard.ADDITIVE_TRANSPARENCY)
+            .setTextureState(RenderStateShard.TextureStateShard(ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/block/robot.png"), false, false))
+            .createCompositeState(false))
+
+    override fun render(ent: RobotEntity, partialTick: Float, poseStack: PoseStack, bufferSource: MultiBufferSource, packedLight: Int, packedOverlay: Int) {
+        poseStack.pushPose()
+//        poseStack.translate(0f, sin(ent.level!!.dayTime.toFloat()/20F)*0.02F, 0f)
+        val modelbuffer = bufferSource.getBuffer(RenderType.entitySolid(TextureAtlas.LOCATION_BLOCKS))
+        val colorbuffer = bufferSource.getBuffer(STREAK_RENDER_TYPE)
+
+        val col = DyeColor.LIGHT_GRAY.fireworkColor
+        val red = ((col and 0xFF0000) shr 8*2) / 255f
+        val green = ((col and 0xFF00) shr 8) / 255f
+        val blue  = ((col and 0xFF)) / 255f
+
+        renderer.renderModel(poseStack.last(), modelbuffer, ent.blockState, model!!, red, green, blue, packedLight, packedOverlay)
+        renderLight(poseStack, colorbuffer, (ent.level!!.dayTime%16).toInt())
+
+
+        // TODO: crafting table and chest little models
+
+        poseStack.popPose()
+        renderTag(ent, Component.literal(ent.name), poseStack, bufferSource, packedLight, partialTick)
+    }
+
+    // offset is 0-15
+    fun renderLight(poseStack: PoseStack, buffer: VertexConsumer, offset: Int) {
+        poseStack.pushPose()
+
+        val u1 = 0.5f
+        val v1 = 0.5f + offset*1/32f
+        val u2 = 1F
+        val v2 = 17/32f + offset*1/32f
+
+        for (i in 0..3) {
+            poseStack.rotateAround(Axis.YP.rotationDegrees(90f), 0.5f, 0.5f, 0.5f)
+
+            buffer.addVertex(poseStack.last(),0.1f+2/16f, 7/16f, 0.9f-2/16f).setColor(1f, 0f, 0f, 1f).setUv(u2, v2)
+            buffer.addVertex(poseStack.last(),0.1f+2/16f, 9/16f, 0.9f-2/16f).setColor(1f, 0f, 0f, 1f).setUv(u2, v1)
+            buffer.addVertex(poseStack.last(),0.1f+2/16f, 9/16f, 0.1f+2/16f).setColor(1f, 0f, 0f, 1f).setUv(u1, v1)
+            buffer.addVertex(poseStack.last(),0.1f+2/16f, 7/16f, 0.1f+2/16f).setColor(1f, 0f, 0f, 1f).setUv(u1, v2)
+        }
+
+        poseStack.popPose()
+
+
+    }
+
+    fun renderTag(ent: RobotEntity, name: Component, stack: PoseStack, source: MultiBufferSource, light: Int, ptick: Float) {
+        val d = Minecraft.getInstance().cameraEntity!!.distanceToSqr(ent.blockPos.center)
+        if (d > 4096.0) return
+
+        val vec = Vec3(0.5, 20 / 16.0, 0.5)
+
+        stack.pushPose()
+        stack.translate(vec.x, vec.y, vec.z)
+//        stack.mulPose(context.entityRenderer.cameraOrientation())
+        stack.scale(0.025F, -0.025F, 0.025F)
+        val opacity = Minecraft.getInstance().options.getBackgroundOpacity(0.25F)
+        val alpha: Int = (opacity * 255.0f).toInt() shl 24
+//        val alpha = 255
+        val halfwidth = (-context.font.width(name)) / 2;
+        RenderSystem.disableDepthTest()
+        context.font.drawInBatch(name, halfwidth.toFloat(), 2f, 0xFFFFFF, false, stack.last().pose(), source, Font.DisplayMode.SEE_THROUGH, alpha, light)
+
+        RenderSystem.enableDepthTest()
+        stack.popPose()
+    }
+
+}

src/main/kotlin/org/neoflock/neocomputers/entity/render/ScreenEntityRenderer.kt

@@ -0,0 +1,71 @@
+package org.neoflock.neocomputers.entity.render
+
+import com.mojang.blaze3d.vertex.DefaultVertexFormat
+import com.mojang.blaze3d.vertex.PoseStack
+import com.mojang.blaze3d.vertex.VertexFormat
+import com.mojang.math.Axis
+import net.minecraft.client.renderer.MultiBufferSource
+import net.minecraft.client.renderer.RenderStateShard
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.client.renderer.blockentity.BlockEntityRenderer
+import net.minecraft.client.renderer.blockentity.BlockEntityRendererProvider
+import net.minecraft.core.Direction
+import net.minecraft.resources.ResourceLocation
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.block.ScreenBlock
+import org.neoflock.neocomputers.entity.ScreenEntity
+
+class ScreenEntityRenderer(val context: BlockEntityRendererProvider.Context?) : BlockEntityRenderer<ScreenEntity> { // TODO: FORGE
+    val RENDER_TYPE: (ResourceLocation) -> RenderType = { t: ResourceLocation ->
+        RenderType.create(
+    "nc_screen",
+    DefaultVertexFormat.POSITION_TEX,
+    VertexFormat.Mode.QUADS,
+    RenderType.TRANSIENT_BUFFER_SIZE, RenderType.CompositeState.builder().
+            setShaderState(RenderStateShard.POSITION_TEX_SHADER).
+            setTextureState(RenderStateShard.TextureStateShard(t, false, false))
+                .createCompositeState(false))
+    }
+    override fun render(entity: ScreenEntity, partialTick: Float, mat: PoseStack, bufferSource: MultiBufferSource, packedLight: Int, packedOverlay: Int) {
+        if(!entity.isOn && entity.lastError == null) return
+        val facing = entity.blockState.getValue(ScreenBlock.FACING_HORIZ)
+        val vert = entity.blockState.getValue(ScreenBlock.FACING_VERTI)-1
+
+        mat.pushPose()
+        handleDirection(facing, vert, mat)
+        mat.translate(2 / 16f, 2 / 16f, 0.0001f) // am i epstein or am i just retarded
+
+        val width = 3/4F
+        val height = 3/4F
+        val bx = 0F
+        val by = 0F
+
+        val rendertype = RENDER_TYPE(ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, entity.bound))
+        val buffer = bufferSource.getBuffer(rendertype)
+        buffer.addVertex(mat.last(), bx+width, by, 0f).setUv(1f, 1f)
+        buffer.addVertex(mat.last(), bx+width, by+height, 0f).setUv(1f, 0f)
+        buffer.addVertex(mat.last(), bx, by+height, 0f).setUv(0f, 0f)
+        buffer.addVertex(mat.last(), bx, by, 0f).setUv(0f, 1f)
+
+        mat.popPose()
+    }
+
+    private fun handleDirection(facing: Direction, vert: Int, mat: PoseStack) { // TODO: separate up and down from cardinal directions
+//        mat.mulPose(Axis.XN.rotationDegrees(vert.toFloat()*90F))
+//        if (vert==0) {
+//            mat.mulPose(Axis.YP.rotationDegrees(90F))
+//            return
+//        }
+        when (facing) {
+            Direction.SOUTH -> { mat.translate(0F, 0F, 1F) }
+            Direction.EAST -> { mat.mulPose(Axis.YP.rotationDegrees(90F)); mat.translate(-1F, 0F, 1F) }
+            Direction.WEST -> { mat.mulPose(Axis.YN.rotationDegrees(90F)); }
+            Direction.NORTH -> {mat.mulPose(Axis.YP.rotationDegrees(180F)); mat.translate(-1F, 0F, 0F) }
+            else -> {}
+//            Direction.UP -> { mat.mulPose(Axis.XN.rotationDegrees(90F)); mat.mulPose(Axis.ZP.rotationDegrees(180F)); mat.translate(-1F, 0F, 1F) } // idek
+//            Direction.DOWN -> { mat.mulPose(Axis.XP.rotationDegrees(90F)); mat.mulPose(Axis.ZN.rotationDegrees(180F)); mat.translate(-1F, -1F, 0F) }
+        }
+        mat.mulPose(Axis.XN.rotationDegrees(vert*90F))
+        mat.translate(0F, if (vert==-1) -1F else 0F, if (vert==1) 1F else 0F)
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/gui/menu/CaseMenu.kt

@@ -0,0 +1,46 @@
+package org.neoflock.neocomputers.gui.menu;
+
+import net.minecraft.world.Container
+import net.minecraft.world.SimpleContainer
+import net.minecraft.world.entity.player.Inventory
+import org.neoflock.neocomputers.entity.CaseBlockEntity
+import org.neoflock.neocomputers.gui.widget.ComponentRoles
+import org.neoflock.neocomputers.gui.widget.ComponentSlot
+import org.neoflock.neocomputers.gui.widget.ComponentSlotRequirement
+import org.neoflock.neocomputers.utils.GenericContainerMenu
+
+open class CaseMenu : GenericContainerMenu {
+    open val eepromRequirement = ComponentSlotRequirement(1, ComponentRoles.FIRMWARE)
+    open val slotRequirements = listOf(
+        listOf(ComponentSlotRequirement(1, ComponentRoles.CARD), ComponentSlotRequirement(1, ComponentRoles.CARD)),
+        listOf(ComponentSlotRequirement(1, ComponentRoles.COMPUTE), ComponentSlotRequirement(1, ComponentRoles.MEMORY), ComponentSlotRequirement(1, ComponentRoles.MEMORY)),
+        listOf(ComponentSlotRequirement(1, ComponentRoles.STORAGE)),
+    )
+
+    constructor(i: Int, inv: Inventory) : this(i, inv, SimpleContainer(7))
+
+    constructor(i: Int, inv: Inventory, container: Container) : super(Menus.CASE_MENU.get(), i, container) {
+        val machine = container as? CaseBlockEntity
+
+        this.addSlot(ComponentSlot(container, 0, 20, 34, machine, eepromRequirement))
+
+        var i = 1
+        for ((col, slotCol) in slotRequirements.withIndex()) {
+            for ((row, slotReq) in slotCol.withIndex()) {
+                this.addSlot(ComponentSlot(container, i, 98+(col*22), 18*(row+1)-2, machine, slotReq))
+                i++
+            }
+        }
+
+        this.addInventorySlots(inv, 8, 84)
+
+        // for (int col=1; col<4; col++) {
+        //     for (int row=1; row<4; row++) {
+        //         int i = (row-1)*3+(col-1);
+        //         if(slotmap[tier][i] != null) {
+        //             this.addSlot(new ComponentSlot(entity.getContainer(), ((col-1)*3)+row, 98+((col-1)*22), 18*row-2, slotmap[tier][i], tiermap[tier][i]));
+        //         }
+        //     }
+        // }
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/gui/menu/CombustionGeneratorMenu.kt

@@ -0,0 +1,32 @@
+package org.neoflock.neocomputers.gui.menu
+
+import net.minecraft.world.Container
+import net.minecraft.world.SimpleContainer
+import net.minecraft.world.entity.player.Inventory
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.inventory.AbstractContainerMenu
+import net.minecraft.world.inventory.Slot
+import net.minecraft.world.item.ItemStack
+import org.neoflock.neocomputers.gui.widget.DynamicSlot
+import org.neoflock.neocomputers.utils.ContainerUtils
+import org.neoflock.neocomputers.utils.GenericContainerMenu
+
+class CombustionFuelSlot(container: Container, slot: Int, x: Int, y: Int): DynamicSlot(container, slot, x, y) {
+    override fun mayPlace(itemStack: ItemStack): Boolean {
+        return ContainerUtils.isBurningFuel(itemStack)
+    }
+}
+
+class CombustionGeneratorMenu: GenericContainerMenu {
+    // Client-side constructor, idk forge tells me to do this
+    constructor(id: Int, inventory: Inventory): this(id, inventory, SimpleContainer(1))
+
+    // Server-side constructor
+    constructor(id: Int, inventory: Inventory, container: Container): super(Menus.COMBUSTGEN_MENU.get(), id, container) {
+        container.startOpen(inventory.player)
+
+        this.addSlot(CombustionFuelSlot(container, 0, 80, 35))
+
+        this.addInventorySlots(inventory, 8, 84)
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/gui/menu/Menus.kt

@@ -0,0 +1,36 @@
+package org.neoflock.neocomputers.gui.menu;
+
+import dev.architectury.registry.menu.MenuRegistry
+import dev.architectury.registry.registries.DeferredRegister
+import dev.architectury.registry.registries.RegistrySupplier
+import net.minecraft.client.gui.screens.MenuScreens
+import net.minecraft.core.registries.Registries
+import net.minecraft.world.flag.FeatureFlagSet
+import net.minecraft.world.flag.FeatureFlags
+import net.minecraft.world.inventory.MenuType
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.gui.menu.ScreenMenu
+import org.neoflock.neocomputers.gui.screen.CaseScreen
+import org.neoflock.neocomputers.gui.screen.CombustionGeneratorScreen
+import org.neoflock.neocomputers.gui.screen.RackScreen
+import org.neoflock.neocomputers.gui.screen.RelayScreen
+import org.neoflock.neocomputers.gui.screen.ScreenScreen
+
+object Menus {
+    val MENUS: DeferredRegister<MenuType<*>> = DeferredRegister.create(NeoComputers.MODID, Registries.MENU)
+
+    val SCREEN_MENU: RegistrySupplier<MenuType<ScreenMenu>> = MENUS.register("screen_menu") { MenuRegistry.ofExtended<ScreenMenu>(::ScreenMenu) }
+    val COMBUSTGEN_MENU: RegistrySupplier<MenuType<CombustionGeneratorMenu>> = MENUS.register("combustgen_menu") { MenuType(::CombustionGeneratorMenu, FeatureFlagSet.of() ) }
+    val CASE_MENU: RegistrySupplier<MenuType<CaseMenu>> = MENUS.register("case_menu") { MenuType(::CaseMenu, FeatureFlagSet.of() )}
+    val RELAY_MENU: RegistrySupplier<MenuType<RelayMenu>> = MENUS.register("relay_menu") { MenuType(::RelayMenu, FeatureFlagSet.of() )}
+    val RACK_MENU: RegistrySupplier<MenuType<RackMenu>> = MENUS.register("rack_menu") { MenuRegistry.ofExtended(::RackMenu) }
+//    val RACK_MENU: RegistrySupplier<MenuType<RackMenu>> = MENUS.register("rack_menu") { MenuType(::RackMenu, FeatureFlagSet.of() )}
+
+    fun registerScreens() {
+        MenuScreens.register(Menus.COMBUSTGEN_MENU.get()) { m: CombustionGeneratorMenu, u, comp ->CombustionGeneratorScreen(m,u,comp)}
+        MenuScreens.register(Menus.SCREEN_MENU.get(), ::ScreenScreen)
+        MenuScreens.register(Menus.CASE_MENU.get(), ::CaseScreen)
+        MenuScreens.register(Menus.RELAY_MENU.get(), ::RelayScreen)
+        MenuScreens.register(Menus.RACK_MENU.get(), ::RackScreen)
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/gui/menu/RackMenu.kt

@@ -0,0 +1,192 @@
+package org.neoflock.neocomputers.gui.menu
+
+import com.mojang.blaze3d.systems.RenderSystem
+import com.mojang.blaze3d.vertex.BufferUploader
+import com.mojang.blaze3d.vertex.DefaultVertexFormat
+import com.mojang.blaze3d.vertex.Tesselator
+import com.mojang.blaze3d.vertex.VertexConsumer
+import com.mojang.blaze3d.vertex.VertexFormat
+import io.netty.buffer.Unpooled
+import net.minecraft.client.Minecraft
+import net.minecraft.client.gui.GuiGraphics
+import net.minecraft.client.gui.components.events.GuiEventListener
+import net.minecraft.client.renderer.GameRenderer
+import net.minecraft.client.renderer.MultiBufferSource
+import net.minecraft.client.renderer.RenderStateShard
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.client.resources.sounds.SimpleSoundInstance
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.sounds.SoundEvents
+import net.minecraft.world.Container
+import net.minecraft.world.SimpleContainer
+import net.minecraft.world.entity.player.Inventory
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.item.ItemStack
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.entity.RackEntity
+import org.neoflock.neocomputers.gui.widget.ComponentRoles
+import org.neoflock.neocomputers.gui.widget.DynamicSlot
+import org.neoflock.neocomputers.item.ComponentItem
+import org.neoflock.neocomputers.utils.GenericContainerMenu
+
+class RackSlot(container: Container, slot: Int, x: Int, y: Int) : DynamicSlot(container, slot, x, y), GuiEventListener {
+    // i hate that i made this, my regret is immeasurable
+    val MAIN_COLOURS = listOf(0xff8382d8.toInt(), 0xff75bdc1.toInt(), 0xffc8ca5f.toInt(), 0xffdb7d75.toInt(), 0xff7ec95f.toInt())
+    val DARK_COLOURS = listOf(0xff6a6ab0.toInt(), 0xff60999d.toInt(), 0xffa2a44e.toInt(), 0xffb36660.toInt(), 0xff67a34e.toInt())
+    val LIGHT_COLOURS = listOf(0xffdcdcf0.toInt(), 0xffdcdcf0.toInt(), 0xffececd4.toInt(), 0xfff0dbd9.toInt(), 0xffdbecd4.toInt())
+
+    val secondaries = 2 // TODO: make this actually change depending on how many network cards
+
+    // todo: kotlin getters and setters
+    fun getSelected(i: Int): Int = (container as RackEntity).conns[containerSlot*4+i]
+    fun setSelected(i: Int, v: Int) { (container as RackEntity).conns[containerSlot*4+i] = v }
+
+    override fun draw(graphics: GuiGraphics, mouseX: Int, mouseY: Int) {
+        super.draw(graphics, mouseX, mouseY)
+        if (!hasItem()) { drawQuad(graphics, ComponentRoles.getTextureFor("rack"), x, y, 16, 16, 0f, 0f, 15f, 15f); return; }
+        for (i in 0..secondaries) {
+            if (getSelected(i) > -1) drawConnection(graphics, getSelected(i), i-1)
+        }
+
+        drawEndpoints(graphics, mouseX, mouseY,  secondaries)
+    }
+
+    override fun mayPlace(stack: ItemStack): Boolean {
+        if (stack.item !is ComponentItem) return false
+        return (stack.item as ComponentItem).getComponentRoles(stack).contains(ComponentRoles.RACK_MOUNTABLE)
+    }
+
+    override fun onTake(player: Player, stack: ItemStack) {
+        super.onTake(player, stack)
+        setSelected(0, -1)
+        setSelected(1, -1)
+        setSelected(2, -1)
+        setSelected(3, -1)
+        (container as RackEntity).setChanged()
+
+    }
+
+    fun drawConnection(guiGraphics: GuiGraphics, side: Int, sec: Int = -1) {
+        val bufferSource = guiGraphics.bufferSource()
+        val buffer = bufferSource.getBuffer(RenderType.gui())
+
+        if (sec == -1) {
+            drawColor(guiGraphics, buffer, 18, 1, DARK_COLOURS[side], 6 + (11 * side))
+            drawColor(guiGraphics, buffer, 18, 2, MAIN_COLOURS[side], 6 + (11 * side))
+            drawColor(guiGraphics, buffer, 18, 3, LIGHT_COLOURS[side], 6 + (11 * side))
+        } else {
+            drawColor(guiGraphics, buffer, 18, 6+(4*sec), MAIN_COLOURS[side], 6+(11*side))
+            drawColor(guiGraphics, buffer, 18, 7+(4*sec), 0xff8f8f90.toInt(), 6+(11*side))
+        }
+    }
+
+
+    fun drawEndpoints(guiGraphics: GuiGraphics, mx: Int, my: Int, sec: Int =0) {
+        val bufferSource = guiGraphics.bufferSource()
+        val buffer = bufferSource.getBuffer(RenderType.gui())
+
+        // main slot endpoint
+        drawColor(guiGraphics, buffer, 17, 1, 0xff888888.toInt())
+        drawColor(guiGraphics, buffer, 17, 3, 0xffffffff.toInt())
+
+        // main cable endpoints
+        for (i in 0..4) {
+            drawColor(guiGraphics, buffer, 24+(11*i), 1, 0xff333333.toInt(), 1, 3)
+            drawColor(guiGraphics, buffer, 25+(11*i), 1, MAIN_COLOURS[i], 3, 3)
+            drawColor(guiGraphics, buffer, 28+(11*i), 1, 0xffffffff.toInt(), 1, 3)
+
+            // highlight
+            if (mx >= x+25+(11*i) && mx <= x+27+(11*i) && my >= y+1 && my <= y+3) {
+                drawColor(guiGraphics, buffer, 25+(11*i), 1,  0x80FFFFFF.toInt(), 3, 3)
+            }
+        }
+
+        // secondary endpoints
+        for (i in 0..<sec) {
+            // slot
+            drawColor(guiGraphics, buffer, 17, 6+(4*i), 0xffffffff.toInt())
+            drawColor(guiGraphics, buffer, 17, 7+(4*i), 0xff888888.toInt())
+
+            // cable
+            for (j in 0..4) {
+                drawColor(guiGraphics, buffer, 24+(11*j), 6+(4*i), 0xff333333.toInt(), 1, 2)
+                drawColor(guiGraphics, buffer, 25+(11*j), 6+(4*i), MAIN_COLOURS[j], 3, 2)
+                drawColor(guiGraphics, buffer, 28+(11*j), 6+(4*i), 0xffffffff.toInt(), 1, 2)
+
+                // highlight
+                if (mx >= x+25+(11*j) && mx <= x+27+(11*j) && my >= y+6+(4*i) && my <= y+8+(4*i)) {
+                    drawColor(guiGraphics, buffer, 25+(11*j), 6+(4*i),  0x80FFFFFF.toInt(), 3, 2)
+                }
+            }
+        }
+    }
+
+    fun encode(buf: FriendlyByteBuf) { // client -> server
+        buf.writeInt(containerSlot)
+        buf.writeInt(getSelected(0))
+        buf.writeInt(getSelected(1))
+        buf.writeInt(getSelected(2))
+        buf.writeInt(getSelected(3))
+
+    }
+
+    // TODO: replace with graphics.fill (cant be assed atm)
+    fun drawColor(guiGraphics: GuiGraphics, buffer: VertexConsumer, _x:Int, _y: Int, col: Int, width: Int=1, height: Int=1) {
+        val pose = guiGraphics.pose().last()
+
+        // x+_x+1 is one im not proud of
+        buffer.addVertex(pose, x+_x+width.toFloat(), y+_y+height.toFloat(), 2f).setColor(col)
+        buffer.addVertex(pose,  x+_x+width.toFloat(), y+_y.toFloat(), 2f).setColor(col)
+        buffer.addVertex(pose, x+_x.toFloat(), y+_y.toFloat(), 2f).setColor(col)
+        buffer.addVertex(pose, x+_x.toFloat(), y+_y+height.toFloat(), 2f).setColor(col)
+    }
+
+    fun clickynoise() {
+        val handler = Minecraft.getInstance().soundManager
+        handler.play(SimpleSoundInstance.forUI(SoundEvents.UI_BUTTON_CLICK, 1.0F));
+    }
+
+    override fun mouseClicked(mouseX: Double, mouseY: Double, button: Int): Boolean {
+        for (i in 0..4) { // main line
+            if (mouseX >= x+25+(11*i) && mouseX <= x+28+(11*i) && mouseY >= y+1 && mouseY <= y+4 && button == 0) {
+                setSelected(0, if (getSelected(0) != i) i else -1)
+                (container as RackEntity).setChanged()
+                clickynoise()
+                return true
+            }
+        }
+
+        for (i in 0..<secondaries) { // secondary lines
+            for (j in 0..4) {
+                if (mouseX >= x+25+(11*j) && mouseX <= x+28+(11*j) && mouseY >= y+6+(4*i) && mouseY <= y+8+(4*i) && button == 0) {
+                    setSelected(i+1, if (getSelected(i+1) != j) j else -1)
+                    (container as RackEntity).setChanged()
+                    clickynoise()
+                    return true
+                }
+            }
+        }
+        return super.mouseClicked(mouseX, mouseY, button)
+    }
+
+    override fun setFocused(focused: Boolean) {
+    }
+
+    override fun isFocused(): Boolean {
+        return false
+    }
+}
+
+class RackMenu : GenericContainerMenu {
+
+    constructor(i: Int, inv: Inventory, buf: FriendlyByteBuf) : this(i, inv, (inv.player.level().getBlockEntity(buf.readBlockPos()) as RackEntity))
+
+    constructor(i: Int, inv: Inventory, container: Container) : super(Menus.RACK_MENU.get(), i, container) {
+        for(i in 0..3) {
+            val slot = RackSlot(container,  i, 20, 23+i*20)
+            this.addSlot(slot)
+        }
+        this.addInventorySlots(inv, 8, 128)
+    }
+
+}

src/main/kotlin/org/neoflock/neocomputers/gui/menu/RelayMenu.kt

@@ -0,0 +1,85 @@
+package org.neoflock.neocomputers.gui.menu
+
+import com.mojang.blaze3d.systems.RenderSystem
+import net.minecraft.client.gui.GuiGraphics
+import net.minecraft.client.renderer.GameRenderer
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.world.Container
+import net.minecraft.world.SimpleContainer
+import net.minecraft.world.entity.player.Inventory
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.item.ItemStack
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.block.RelayEntity
+import org.neoflock.neocomputers.gui.widget.ComponentRoles
+import org.neoflock.neocomputers.gui.widget.DynamicSlot
+import org.neoflock.neocomputers.item.ComponentItem
+import org.neoflock.neocomputers.item.RelayUpgrade
+import org.neoflock.neocomputers.utils.GenericContainerMenu
+
+class RelaySlot(container: Container, slot: Int, x: Int, y: Int, val role: String, val relay: RelayEntity?) : DynamicSlot(container, slot, x, y) {
+    override fun mayPlace(stack: ItemStack): Boolean {
+        if(stack.isEmpty) return true
+        val upgrade = stack.item as? RelayUpgrade ?: return false
+        if(containerSlot == RelayEntity.CARD) {
+            return upgrade.isRelayCompatibleCard(stack)
+        }
+        if(containerSlot == RelayEntity.CPU) {
+            return upgrade.getRelayInterval(stack) != null
+        }
+        if(containerSlot == RelayEntity.MEM) {
+            return upgrade.getRelayBufferSize(stack) != null
+        }
+        if(containerSlot == RelayEntity.STORAGE) {
+            return upgrade.getRelayQueueSize(stack) != null
+        }
+        return false
+    }
+
+    override fun set(stack: ItemStack) {
+        super.set(stack)
+        val item = stack.item
+        if(item is ComponentItem) {
+            item.whenComponentPlaced(stack, relay, role)
+        }
+    }
+
+    override fun onTake(player: Player, stack: ItemStack) {
+        super.onTake(player, stack)
+        val item = stack.item
+        if(item is ComponentItem) {
+           item.whenComponentTaken(stack, relay, role)
+        }
+    }
+
+    override fun getMaxStackSize() = 1
+    override fun getMaxStackSize(stack: ItemStack) = 1
+
+    override fun draw(graphics: GuiGraphics,  mouseX: Int, mouseY: Int) {
+        super.draw(graphics,  mouseX, mouseY)
+        if(!hasItem()) {
+            drawQuad(graphics, ComponentRoles.getTextureFor(role), x-1, y-1, 18, 18, 0f, 0f, 15f, 15f)
+        }
+    }
+}
+
+class RelayMenu : GenericContainerMenu {
+    constructor(i: Int, inv: Inventory) : this(i, inv, SimpleContainer(RelayEntity.SLOT_COUNT))
+
+    constructor(i: Int, inv: Inventory, container: Container) : super(Menus.RELAY_MENU.get(), i, container) {
+        val relay = container as? RelayEntity
+
+        val relayMenuWidth = 176
+        val itemX = 152
+        val itemRowDist = 16
+        val itemSpacing = 20
+
+        this.addSlot(RelaySlot(container, RelayEntity.CARD, relayMenuWidth+4, itemRowDist, ComponentRoles.NETWORK, relay))
+
+        this.addSlot(RelaySlot(container, RelayEntity.CPU, itemX, itemRowDist, ComponentRoles.COMPUTE, relay))
+        this.addSlot(RelaySlot(container, RelayEntity.MEM, itemX, itemRowDist+itemSpacing, ComponentRoles.MEMORY, relay))
+        this.addSlot(RelaySlot(container, RelayEntity.STORAGE, itemX, itemRowDist+itemSpacing*2, ComponentRoles.STORAGE, relay))
+
+        this.addInventorySlots(inv, 8, 84)
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/gui/menu/ScreenMenu.kt

@@ -0,0 +1,23 @@
+package org.neoflock.neocomputers.gui.menu;
+
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.world.SimpleContainer
+import net.minecraft.world.entity.player.Inventory
+import org.neoflock.neocomputers.gui.menu.Menus;
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.inventory.AbstractContainerMenu
+import net.minecraft.world.inventory.MenuType
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.level.block.entity.BlockEntity
+import org.neoflock.neocomputers.entity.ScreenEntity
+import org.neoflock.neocomputers.utils.GenericContainerMenu
+
+class ScreenMenu : GenericContainerMenu {
+    var entity: ScreenEntity? = null
+
+    constructor(i: Int, inv: Inventory, buf: FriendlyByteBuf) : this(i, inv, inv.player.level().getBlockEntity(buf.readBlockPos()))
+    constructor(i: Int, inv: Inventory, entity: BlockEntity?) : super(Menus.SCREEN_MENU.get(), i, SimpleContainer(0)) {
+        this.entity = entity as ScreenEntity
+    }
+
+}

src/main/kotlin/org/neoflock/neocomputers/gui/render/BufferRenderer.kt

@@ -0,0 +1,64 @@
+package org.neoflock.neocomputers.gui.buffer;
+
+import com.mojang.blaze3d.platform.NativeImage
+import net.minecraft.client.Minecraft
+import net.minecraft.client.renderer.texture.DynamicTexture
+import net.minecraft.client.renderer.texture.TextureManager
+import net.minecraft.resources.ResourceLocation
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.utils.FontProvider
+import org.neoflock.neocomputers.utils.GPUChar
+import org.neoflock.neocomputers.utils.TextBuffer
+import java.io.File
+import kotlin.experimental.and
+import kotlin.experimental.xor
+
+class BufferRenderer(private var id: ResourceLocation, private var buffer: TextBuffer) { // TODO: NN buffer
+    val CHARW = 8
+    val CHARH = 16
+
+    private var texwidth: Int = buffer.width*CHARW;
+    private var texheight: Int = buffer.height*CHARH;
+    private var image: NativeImage = NativeImage(texwidth, texheight, true); // idk what the boolean is
+    private var tex: DynamicTexture = DynamicTexture(image)
+
+    init {
+        Minecraft.getInstance().textureManager.register(this.id, tex)
+    }
+
+    fun toRGBA(color: Int): Int {
+        // Minecaft lies, its AGBR
+        return java.lang.Integer.reverseBytes((color.toLong() * 256 + 0xFF).toInt())
+    }
+
+    fun drawGlyph(x: Int, y: Int, c: Char, fg: Int) {
+        var glyph: ArrayList<Byte> = FontProvider.map[c]!!
+
+        for (j in 0..<CHARH) {
+            for (i in 0..<CHARW) {
+                // var pixel = ((glyph[j] and ((1 shl (CHARW - i - 1)).toByte())).toInt()) ushr (CHARW - i - 1) // retardation
+                var pixel = (glyph[j] and (0b10000000 ushr i).toByte()).toInt()
+                if (pixel > 0) image.setPixelRGBA(x+i, y+j, toRGBA(fg))
+            }
+        }
+    }
+
+    fun drawBuffer() {
+        for (i in 0..<buffer.width) {
+            for (j in 0..<buffer.height) {
+                var char: GPUChar = buffer.get(i, j)
+                var x = i*CHARW
+                var y = j*CHARH
+                image.fillRect(x, y, CHARW, CHARH, toRGBA(char.bg))
+                if (char.c != ' ' && char.c != '\u0000') drawGlyph(x, y, char.c, char.fg) 
+            }
+        }
+        tex.upload()
+    }
+
+    fun clean() {
+        Minecraft.getInstance().textureManager.release(this.id)
+        image.close()
+        tex.close()
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/gui/render/ProgressBar.kt

@@ -0,0 +1,57 @@
+package org.neoflock.neocomputers.gui.widget
+
+import com.mojang.blaze3d.systems.RenderSystem
+import com.mojang.blaze3d.vertex.BufferBuilder
+import com.mojang.blaze3d.vertex.BufferUploader
+import com.mojang.blaze3d.vertex.DefaultVertexFormat
+import com.mojang.blaze3d.vertex.PoseStack
+import com.mojang.blaze3d.vertex.Tesselator
+import com.mojang.blaze3d.vertex.VertexConsumer
+import com.mojang.blaze3d.vertex.VertexFormat
+import net.minecraft.client.Minecraft
+import net.minecraft.client.gui.GuiGraphics
+import net.minecraft.client.gui.components.AbstractWidget
+import net.minecraft.client.gui.narration.NarrationElementOutput
+import net.minecraft.client.gui.screens.inventory.tooltip.ClientTooltipComponent
+import net.minecraft.client.renderer.GameRenderer
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.network.chat.Component
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.world.item.Item
+import org.neoflock.neocomputers.NeoComputers
+import java.util.function.Supplier
+import kotlin.math.ceil
+
+// #66CC66
+
+object ProgressBar {
+
+    // NOTE: OC never uses a different width and height
+    fun render(guiGraphics: GuiGraphics, x: Int, y: Int, value: Long, max: Long, mouseX: Int, mouseY: Int, width: Int=142, height: Int=14, tooltipfunc: (Int) -> String?) {
+        RenderSystem.disableBlend()
+        guiGraphics.fill(x, y, x+width-1, y+1, 0xFF373737.toInt()) // top left corner + top edge
+        guiGraphics.fill(x, y+1, x+1, y+height-1, 0xFF373737.toInt()) // left edge
+
+        guiGraphics.fill(x, y+height-1, x+1, y+height, 0xFF8B8B8B.toInt()) // bottom left corner
+        guiGraphics.fill(x+width-1, y, x+width, y+1, 0xFF8B8B8B.toInt()) // top right corner
+
+        guiGraphics.fill(x+1, y+height-1, x+width, y+height, 0xFFFFFFFF.toInt()) // bottom right corner + bottom edge
+        guiGraphics.fill(x+width-1, y+height-1, x+width, y+1, 0xFFFFFFFF.toInt()) // right edge
+
+        val frac = if(max == 0L) 0.0f else value.toFloat() / max.toFloat()
+        val linew = ceil(frac*(width-2).toFloat())
+        guiGraphics.fill(
+            RenderType.gui(),
+            x + 1,
+            y + 1,
+            x + 1 + (linew.toInt()),
+            y + height-1,
+            0xFF66CC66.toInt()
+        )
+
+        val tooltip = tooltipfunc((ceil(frac * 100F)).toInt()) ?: return
+        if (mouseX > x && mouseX < x+width && mouseY > y && mouseY < y+height )
+            guiGraphics.renderTooltip(Minecraft.getInstance().font, Component.literal(tooltip), mouseX, mouseY)
+    }
+
+}

src/main/kotlin/org/neoflock/neocomputers/gui/render/ScreenRenderer.kt

@@ -0,0 +1,96 @@
+package org.neoflock.neocomputers.gui.render;
+
+import com.mojang.blaze3d.platform.GlConst
+import com.mojang.blaze3d.platform.NativeImage
+import com.mojang.blaze3d.systems.RenderSystem
+import com.mojang.blaze3d.vertex.BufferBuilder
+import com.mojang.blaze3d.vertex.BufferUploader
+import com.mojang.blaze3d.vertex.DefaultVertexFormat
+import com.mojang.blaze3d.vertex.Tesselator
+import com.mojang.blaze3d.vertex.VertexFormat
+import net.minecraft.client.Minecraft
+import net.minecraft.client.gui.GuiGraphics
+import net.minecraft.client.renderer.GameRenderer
+import net.minecraft.client.renderer.texture.DynamicTexture
+import net.minecraft.resources.ResourceLocation
+import org.neoflock.neocomputers.NeoComputers
+
+class ScreenRenderer { 
+    val BORDERS: ResourceLocation = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/gui/borders.png")
+    var bound: ResourceLocation = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "screen/unbound")
+
+    val bordersize = 10
+
+    fun render(graphics: GuiGraphics, x: Int, y: Int, width: Int, height: Int) {
+        RenderSystem.setShader { GameRenderer.getPositionTexShader() }
+        RenderSystem.setShaderTexture(0, BORDERS);
+        // borders
+        val bordersize = 8; // TODO: this should scale i think
+        // top left corner, uv (0, 0) to (6,6)
+        // graphics.blit
+        drawQuad(graphics, x-bordersize, y-bordersize, bordersize, bordersize, 0F, 0F, 6F, 6F);
+        // top border, uv (7,0) to (8,6)
+        drawQuad(graphics, x, y-bordersize, width, bordersize, 7F, 0F, 8F, 6F); // x+bordersize-bordersize
+        // top right corner, uv (9,0) to (15, 6)
+        drawQuad(graphics, x+width, y-bordersize, bordersize, bordersize, 9F, 0F, 15F, 6F);
+        
+        // left border, uv (0,7) to (6, 8)
+        drawQuad(graphics, x-bordersize, y, bordersize, height, 0F, 7F, 6F, 8F);
+        // middle, uv (7, 7) to (8, 8)
+        // drawQuad(graphics, x+bordersize, y+bordersize, width-bordersize, height-bordersize, 7, 7, 8, 8);
+        // right border uv (9, 7) to (15, 8)
+        drawQuad(graphics, x+width, y, bordersize, height, 9F, 7F, 15F, 8F);
+        
+        // bottom left corner, uv (0, 9) to (6, 15)
+        drawQuad(graphics, x-bordersize, y+height, bordersize, bordersize, 0F, 9F, 6F, 15F);
+        // bottom border, uv (7, 9) to (8, 15)
+        drawQuad(graphics, x, y+height, width, bordersize, 7F, 9F, 8F, 15F);
+        // bottom right corner, uv (9, 9) to (15, 15)
+        drawQuad(graphics, x+width, y+height, bordersize, bordersize, 9F, 9F, 15F, 15F);
+
+        RenderSystem.setShaderTexture(0, bound);
+        RenderSystem.texParameter(GlConst.GL_TEXTURE_2D, GlConst.GL_TEXTURE_MIN_FILTER, GlConst.GL_NEAREST);
+        RenderSystem.texParameter(GlConst.GL_TEXTURE_2D, GlConst.GL_TEXTURE_MAG_FILTER, GlConst.GL_NEAREST);
+        
+        drawQuad(graphics, x, y, width, height, 0F, 0F, 15F, 15F);
+
+    }
+
+    private fun drawQuad(graphics: GuiGraphics, x: Int, y: Int, width: Int, height: Int, u1: Float, v1: Float, u2: Float, v2: Float) {
+        var t: Tesselator = Tesselator.getInstance()
+        var builder: BufferBuilder = t.begin(VertexFormat.Mode.QUADS, DefaultVertexFormat.POSITION_TEX)
+
+        builder.addVertex(x.toFloat(), (y+height).toFloat(), 1f).setUv(u1/15F, v2/15F)
+        builder.addVertex((x+width).toFloat(), (y+height).toFloat(), 1f).setUv(u2/15F, v2/15F)
+        builder.addVertex((x+width).toFloat(), y.toFloat(), 1f).setUv(u2/15F, v1/15F)
+        builder.addVertex(x.toFloat(), y.toFloat(), 1f).setUv(u1/15F,v1/15F)
+
+        BufferUploader.drawWithShader(builder.build()!!)
+    }
+
+    fun bind(id: ResourceLocation) {
+        bound = id
+    }
+
+    fun unbind() {
+        bound = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "screen/unbound")
+    }
+
+    companion object Static {
+        val img: NativeImage = NativeImage(1, 1, false)
+        val tex: DynamicTexture = DynamicTexture(img)
+
+        fun genUnboundTex() {
+            img.fillRect(0, 0, 1, 1, 0xFF000000.toInt())
+            tex.upload()
+
+            Minecraft.getInstance().textureManager.register(ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "screen/unbound"), tex)
+        }
+
+        fun cleanUnboundTex() {
+            img.close()
+            tex.close()
+            Minecraft.getInstance().textureManager.release(ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "screen/unbound"))
+        }
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/gui/screen/CaseScreen.kt

@@ -0,0 +1,103 @@
+package org.neoflock.neocomputers.gui.screen;
+
+import io.netty.buffer.Unpooled
+import net.minecraft.ChatFormatting
+import net.minecraft.client.Minecraft
+import net.minecraft.client.gui.GuiGraphics
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.network.chat.Component
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.world.entity.player.Inventory
+import net.minecraft.world.inventory.tooltip.TooltipComponent
+import net.minecraft.world.phys.Vec3
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.network.NodeSynchronizer
+import org.neoflock.neocomputers.gui.menu.CaseMenu
+import org.neoflock.neocomputers.gui.widget.ButtonSprites
+import org.neoflock.neocomputers.gui.widget.ImagerButton
+import org.neoflock.neocomputers.sounds.Sounds
+import org.neoflock.neocomputers.utils.Formatting
+import org.neoflock.neocomputers.utils.GenericContainerScreen
+import java.util.Optional
+
+class CaseScreen : GenericContainerScreen<CaseMenu> {
+    private val PCB: ResourceLocation = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/gui/computer.png")
+    private val BTN: ResourceLocation = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/gui/button_power.png")
+
+    private var btn: ImagerButton? = null
+    override fun shouldCenterTitle(): Boolean = false
+//    override fun findMenuTexture(): ResourceLocation = BG
+
+    var isOn = false
+    var lastError: String? = null
+    var energy: Long = 0L
+    var maxEnergy: Long = 0L
+    var memory: Long = 0L
+    var maxMemory: Long = 0L
+    var components: Long = 0L
+    var maxComponents: Long = 0L
+    var arch = ""
+
+    override fun processScreenStatePacket(buf: FriendlyByteBuf) {
+        super.processScreenStatePacket(buf)
+        isOn = buf.readBoolean()
+        btn?.pressed = isOn
+        val error = buf.readByteArray().decodeToString()
+        if(error.isEmpty()) {
+            lastError = null
+        } else {
+            lastError = error
+        }
+
+        energy = buf.readLong()
+        maxEnergy = buf.readLong()
+        memory = buf.readLong()
+        maxMemory = buf.readLong()
+        components = buf.readLong()
+        maxComponents = buf.readLong()
+        arch = buf.readUtf()
+    }
+
+    fun getErrorComponent(err: String): Component = if(err.startsWith("@")) Component.translatable(err.substring(1)) else Component.literal(err)
+
+    fun computeButtonTooltip(): List<Component> {
+        val msgs = mutableListOf(Component.translatable(if(isOn) "neocomputers.computer.on" else "neocomputers.computer.off").withStyle(if(isOn) ChatFormatting.GREEN else ChatFormatting.RED))
+        if(lastError != null) {
+            msgs.addLast(Component.translatable("neocomputers.computer.errorNoMsg").withStyle(ChatFormatting.RED).append(getErrorComponent(lastError!!)))
+        }
+        if(arch.isNotEmpty()) {
+            msgs.addLast(Component.translatable("neocomputers.arch", arch))
+        }
+        if(hasShiftDown()) {
+            msgs.addLast(Component.translatable("neocomputers.computer.energy", energy, maxEnergy).withStyle(if(energy < maxEnergy/5) ChatFormatting.RED else ChatFormatting.WHITE))
+            msgs.addLast(Component.translatable("neocomputers.computer.memory", Formatting.formatMemory(memory), Formatting.formatMemory(maxMemory)))
+            msgs.addLast(Component.translatable("neocomputers.computer.components", components, maxComponents).withStyle(if(components <= maxComponents) ChatFormatting.WHITE else ChatFormatting.RED))
+        }
+        return msgs
+    }
+
+    constructor(abstractContainerMenu: CaseMenu, inventory: Inventory, component: Component) : super(abstractContainerMenu, inventory, component) {
+        btn = ImagerButton(
+            71, 33,
+            18, 18,
+            ButtonSprites(BTN, 18, 18, 36, 36)
+        ) {
+            val buf = FriendlyByteBuf(Unpooled.buffer())
+            buf.writeByte(if(isOn) 0x02 else 0x01)
+            NodeSynchronizer.sendScreenInteraction(buf)
+        }
+
+        addWidget(btn!!)
+    }
+    override fun renderbg(guiGraphics: GuiGraphics, f: Float, i: Int, j: Int) {
+        guiGraphics.blit(PCB, 0, 0, 0, 0, this.imageWidth, this.imageHeight) // WE'RE FREE
+    }
+
+    override fun renderCustomOverlay(graphics: GuiGraphics, mouseX: Int, mouseY: Int, blend: Float) {
+        super.renderCustomOverlay(graphics, mouseX, mouseY, blend)
+        if(btn!!.isHovered) {
+            graphics.renderTooltip(this.font, computeButtonTooltip(), Optional.empty<TooltipComponent>(), mouseX, mouseY)
+        }
+    }
+
+}

src/main/kotlin/org/neoflock/neocomputers/gui/screen/CombustionGeneratorScreen.kt

@@ -0,0 +1,56 @@
+package org.neoflock.neocomputers.gui.screen
+
+import net.minecraft.client.gui.GuiGraphics
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.network.RegistryFriendlyByteBuf
+import net.minecraft.network.chat.Component
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.world.entity.player.Inventory
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.entity.BlockEntities
+import org.neoflock.neocomputers.gui.menu.CombustionGeneratorMenu
+import org.neoflock.neocomputers.gui.widget.ProgressBar
+import org.neoflock.neocomputers.utils.GenericContainerScreen
+import kotlin.math.ceil
+
+class CombustionGeneratorScreen : GenericContainerScreen<CombustionGeneratorMenu> {
+//    val bar: ProgressBar = ProgressBar(x = -50, y = -50) { Pair(energy, energyCapacity) } // hide it type shi
+    constructor(abstractContainerMenu: CombustionGeneratorMenu, inventory: Inventory, component: Component) : super(abstractContainerMenu, inventory, component)
+
+    var energy: Long = 0
+    var energyCapacity: Long = 1
+
+    override fun render(graphics: GuiGraphics, mouseX: Int, mouseY: Int, something: Float) {
+        super.render(graphics, mouseX, mouseY, something)
+
+        var relX: Int = (this.width - this.imageWidth) / 2;
+        var relY: Int = (this.height - this.imageHeight) / 2;
+
+        ProgressBar.render(graphics, relX+17, relY+55, energy, energyCapacity, mouseX, mouseY) {
+            String.format("Energy: %d%% (%d/%d)", it, energy, energyCapacity)
+        }
+        // bar.x = imageX + 17
+        // bar.y = imageY + 50
+
+        // val lineBg = 0xFF002200.toInt()
+        // val lineFg = 0xFF00FF00.toInt()
+
+        // val lineX = imageX + 8
+        // val lineY = imageY + 6
+        // val lineHeight = 60
+
+        // val power = energy.toDouble() / energyCapacity
+
+        // graphics.fill(lineX, lineY, lineX + 2, lineY + lineHeight, lineFg)
+        // graphics.fill(lineX, lineY, lineX + 2, lineY + (lineHeight * (1.0 - power)).toInt(), lineBg)
+    }
+
+    override fun getBoundBlockEntityType() = setOf(BlockEntities.COMBUSTGEN_ENTITY.get())
+
+    override fun processScreenStatePacket(buf: FriendlyByteBuf) {
+        energy = buf.readLong()
+        energyCapacity = buf.readLong()
+
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/gui/screen/RackScreen.kt

@@ -0,0 +1,106 @@
+package org.neoflock.neocomputers.gui.screen
+
+import io.netty.buffer.Unpooled
+import net.minecraft.client.gui.GuiGraphics
+import net.minecraft.client.gui.components.Button
+import net.minecraft.client.gui.components.SpriteIconButton
+import net.minecraft.client.gui.components.events.GuiEventListener
+import net.minecraft.client.gui.narration.NarrationElementOutput
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.network.chat.Component
+import net.minecraft.network.chat.MutableComponent
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.world.entity.player.Inventory
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.entity.RackEntity
+import org.neoflock.neocomputers.gui.menu.RackMenu
+import org.neoflock.neocomputers.gui.menu.RackSlot
+import org.neoflock.neocomputers.gui.widget.IconTextButton
+import org.neoflock.neocomputers.network.NodeSynchronizer
+import org.neoflock.neocomputers.utils.GenericContainerScreen
+import java.util.function.Supplier
+
+class RackScreen(menu: RackMenu, inventory: Inventory, component: Component) : GenericContainerScreen<RackMenu>(menu, inventory, component) {
+    override fun findMenuTexture(): ResourceLocation = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/gui/rack.png")
+    val RELAY = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/gui/relay.png")
+
+    var relay_mode = if (menu.container is RackEntity) (menu.container as RackEntity).relayMode else false
+
+    val relaybtn = IconTextButton(100, 96, if(relay_mode) "Enabled" else "Disabled", RELAY, width = 64) {
+        if (relay_mode){
+            it.message = Component.literal("Disabled")
+            relay_mode = false
+        } else {
+            it.message = Component.literal("Enabled")
+            relay_mode = true
+        }
+
+        val buffer = FriendlyByteBuf(Unpooled.buffer())
+        buffer.writeBoolean(relay_mode)
+        (menu.slots[0] as RackSlot).encode(buffer)
+        NodeSynchronizer.sendScreenInteraction(buffer)
+    }
+    init {
+        this.imageWidth = 175
+        this.imageHeight = 209
+        this.inventoryLabelY = imageHeight - 93
+        addWidget(relaybtn)
+    }
+
+    override fun renderbg(guiGraphics: GuiGraphics, partialTick: Float, mouseX: Int, mouseY: Int) {
+        renderSideLabels(guiGraphics)
+        if(relay_mode) renderRelayConnections(guiGraphics)
+    }
+
+    fun renderRelayConnections(graphics: GuiGraphics) {
+        for(i in 0..3) {
+            val x = 50+(i*11)
+            graphics.fill(x, 104, x+4, 105, 0xffffffff.toInt())
+            graphics.fill(x, 105, x+4, 106, 0xff888888.toInt())
+        }
+    }
+
+    fun renderSideLabels(graphics: GuiGraphics) {
+        val x = 115+7
+        val y = 20
+
+        graphics.drawString(font, "Bottom", x, y, 0x404040, false)
+        graphics.drawString(font, "Top", x, y+11, 0x404040, false)
+        graphics.drawString(font, "Back", x, y+22, 0x404040, false)
+        graphics.drawString(font, "Right", x, y+33, 0x404040, false)
+        graphics.drawString(font, "Left", x, y+44, 0x404040, false)
+    }
+
+//    override fun processScreenStatePacket(buf: FriendlyByteBuf) {
+//        super.processScreenStatePacket(buf)
+////        NeoComputers.LOGGER.info("porcessing screen state packet...")
+////        relay_mode = buf.readBoolean()
+////        if (relay_mode) relaybtn.message = Component.literal("Enabled")
+////        else relaybtn.message = Component.literal("Disabled")
+////
+////        for (slot in menu.slots) {
+////            if (slot is RackSlot) {
+////                slot.processStateScreenPacket(buf)
+////            }
+////        }
+//
+//    }
+
+    override fun mouseClicked(mouseX: Double, mouseY: Double, button: Int): Boolean {
+        if (super.mouseClicked(mouseX, mouseY, button)) return true
+        for (slot in menu.slots) {
+            if (slot is RackSlot) {
+                if(slot.mouseClicked(mouseX-imageX, mouseY-imageY, button)) {
+                    val buf = FriendlyByteBuf(Unpooled.buffer())
+                    buf.writeBoolean(relay_mode)
+                    slot.encode(buf)
+
+                    NodeSynchronizer.sendScreenInteraction(buf)
+                    return true
+                }
+            }
+        }
+
+        return false;
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/gui/screen/RelayScreen.kt

@@ -0,0 +1,51 @@
+package org.neoflock.neocomputers.gui.screen
+
+import net.minecraft.ChatFormatting
+import net.minecraft.client.gui.GuiGraphics
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.network.chat.Component
+import net.minecraft.network.chat.Style
+import net.minecraft.world.entity.player.Inventory
+import net.minecraft.world.item.DyeColor
+import org.neoflock.neocomputers.gui.menu.RelayMenu
+import org.neoflock.neocomputers.utils.GenericContainerScreen
+import kotlin.math.max
+import kotlin.math.min
+
+class RelayScreen(abstractContainerMenu: RelayMenu, inventory: Inventory, component: Component): GenericContainerScreen<RelayMenu>(abstractContainerMenu, inventory, component) {
+    var interval: Int = 5
+    var bufferSize: Int = 1
+    var queueSize: Int = 20
+    var inQueue: Int = 0
+
+    override fun shouldCenterTitle(): Boolean = false
+
+    override fun processScreenStatePacket(buf: FriendlyByteBuf) {
+        super.processScreenStatePacket(buf)
+        interval = buf.readVarInt()
+        bufferSize = buf.readVarInt()
+        queueSize = buf.readVarInt()
+        inQueue = buf.readVarInt()
+    }
+
+    override fun render(graphics: GuiGraphics, mouseX: Int, mouseY: Int, something: Float) {
+        super.render(graphics, mouseX, mouseY, something)
+        val textX = imageX + 12
+        val dataX = imageX + 100
+        val textSpacing = 20
+        val textY = imageY + 20
+        val clr = ChatFormatting.DARK_GRAY.color!!
+
+        graphics.drawString(this.font, "Cycle rate", textX, textY, clr, false)
+        graphics.drawString(this.font, "Packets / cycle", textX, textY + textSpacing, clr, false)
+        graphics.drawString(this.font, "Queue Size", textX, textY + textSpacing*2, clr, false)
+
+        val hz = if(interval == 0) 20 else 20 / interval
+        val buffered = min(inQueue, bufferSize)
+        val queued = max(inQueue - bufferSize, 0)
+
+        graphics.drawString(this.font, "$hz Hz", dataX, textY, clr, false)
+        graphics.drawString(this.font, "$buffered / $bufferSize", dataX, textY + textSpacing, clr, false)
+        graphics.drawString(this.font, "$queued / $queueSize", dataX, textY + textSpacing * 2, clr, false)
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/gui/screen/ScreenScreen.kt

@@ -0,0 +1,55 @@
+package org.neoflock.neocomputers.gui.screen;
+
+import com.mojang.blaze3d.vertex.BufferBuilder
+import com.mojang.blaze3d.vertex.DefaultVertexFormat
+import com.mojang.blaze3d.vertex.Tesselator
+import com.mojang.blaze3d.vertex.VertexFormat
+import net.minecraft.client.gui.GuiGraphics
+import net.minecraft.client.gui.screens.inventory.AbstractContainerScreen
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.network.chat.Component
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.world.entity.player.Inventory
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.entity.ScreenEntity
+import org.neoflock.neocomputers.gui.buffer.BufferRenderer
+import org.neoflock.neocomputers.gui.menu.ScreenMenu
+import org.neoflock.neocomputers.gui.render.ScreenRenderer
+import org.neoflock.neocomputers.utils.GenericContainerScreen
+import org.neoflock.neocomputers.utils.TextBuffer
+import kotlin.math.min
+
+class ScreenScreen : GenericContainerScreen<ScreenMenu>{
+    private var renderer: ScreenRenderer = ScreenRenderer();
+
+    var textBuf = TextBuffer(0, 0)
+
+    override fun shouldCenterTitle(): Boolean = false
+
+    override fun processScreenStatePacket(buf: FriendlyByteBuf) {
+        super.processScreenStatePacket(buf)
+        textBuf.decodeContents(buf)
+    }
+
+    constructor(abstractContainerMenu: ScreenMenu, inventory: Inventory, component: Component) : super(abstractContainerMenu, inventory, component) {
+        var ent: ScreenEntity = abstractContainerMenu.entity!!;
+        renderer.bind(ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, ent.bound))
+        // advanced graphics programming
+        this.titleLabelX = Int.MAX_VALUE
+        this.inventoryLabelX = Int.MAX_VALUE
+    }
+    override fun renderBg(guiGraphics: GuiGraphics, f: Float, i: Int, j: Int) {
+        if(textBuf.width > 0) {
+            imageWidth = textBuf.width * 4
+            imageHeight = textBuf.height * 8
+            renderer.render(guiGraphics, imageX, imageY, imageWidth, imageHeight)
+        }
+    }
+
+    override fun renderLabels(guiGraphics: GuiGraphics, mouseX: Int, mouseY: Int) { }
+
+//    override fun onClose() {
+//        super.onClose()
+//        renderer.
+//    }
+}

src/main/kotlin/org/neoflock/neocomputers/gui/widget/ComponentSlot.kt

@@ -0,0 +1,137 @@
+package org.neoflock.neocomputers.gui.widget
+
+import com.mojang.blaze3d.systems.RenderSystem
+import net.minecraft.client.gui.GuiGraphics
+import net.minecraft.client.renderer.GameRenderer
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.world.Container
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.item.ItemStack
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.entity.ComponentUser
+import org.neoflock.neocomputers.item.ComponentItem
+
+// Sort of a mis-nomer, does not need to be associated with components specifically
+
+object ComponentRoles {
+    // For card slots
+    val CARD = "card"
+    // For memory slots
+    val MEMORY = "memory"
+    // For storage slots, aside from EEPROMs and floppys
+    val STORAGE = "storage"
+    // For floppy drive slots
+    val FLOPPY = "floppy"
+    // For EEPROM slots
+    val FIRMWARE = "firmware"
+    // For CPU slot
+    val COMPUTE = "compute"
+    // For component bus
+    val BUS = "bus"
+    val TOOL = "tool"
+    val UPGRADE = "upgrade"
+    val CONTAINER = "container"
+    val TABLET = "tablet"
+    val RACK_MOUNTABLE = "rack"
+    // Conventional network cards, like LAN, WLAN0, WLAN1, etc.
+    val NETWORK = "network"
+    // Internet cards
+    val INET = "internet"
+
+    val MISSING_ROLE_TEXTURE = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/gui/slots/na.png")
+
+    val textureMap = mutableMapOf<String, ResourceLocation>()
+
+    fun mapTexture(role: String, texture: ResourceLocation) {
+        textureMap[role] = texture
+    }
+
+    fun getTextureFor(role: String) = textureMap[role] ?: MISSING_ROLE_TEXTURE
+
+    fun mapDefaultTextures() {
+        val core = mapOf(
+            CARD to "card",
+            BUS to "component_bus",
+            CONTAINER to "container",
+            COMPUTE to "cpu",
+            FIRMWARE to "eeprom",
+            FLOPPY to "floppy",
+            STORAGE to "hdd",
+            MEMORY to "memory",
+            TABLET to "tablet",
+            TOOL to "tool",
+            UPGRADE to "upgrade",
+            RACK_MOUNTABLE to "rack_mountable",
+            // TODO: give them proper textures
+            NETWORK to "card",
+            INET to "card",
+        )
+        for((role, tex) in core) {
+            mapTexture(role, ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/gui/slots/$tex.png"))
+        }
+    }
+}
+
+data class ComponentSlotRequirement(val tier: Int, val role: String) {
+    fun allowsItemStack(itemStack: ItemStack): Boolean {
+        val item = itemStack.item
+        if(item !is ComponentItem) return false
+        if(tier > 0 && item.getComponentTier(itemStack) > tier) return false
+        return item.getComponentRoles(itemStack).contains(role)
+    }
+}
+
+// Tier 0 allows ALL tiers, making it completely untiered.
+// Role determines what the role is.
+class ComponentSlot(container: Container, slot: Int, x: Int, y: Int, val machine: ComponentUser?, val requirement: ComponentSlotRequirement): DynamicSlot(container, slot, x, y) {
+    override fun draw(graphics: GuiGraphics, mouseX: Int, mouseY: Int) {
+        super.draw(graphics, mouseX, mouseY)
+        if(!hasItem()) {
+//            RenderSystem.enableBlend()
+//            RenderSystem.setShaderTexture(0, ComponentRoles.getTextureFor(requirement.role))
+//            RenderSystem.setShader { GameRenderer.getPositionTexShader() }
+            drawQuad(graphics, ComponentRoles.getTextureFor(requirement.role), x - 1, y - 1, 18, 18, 0F, 0F, 15F, 15F)
+            if (requirement.tier > 0) {
+                RenderSystem.setShaderTexture(
+                    0,
+                    ResourceLocation.fromNamespaceAndPath(
+                        NeoComputers.MODID,
+                        "textures/gui/slots/tier${requirement.tier - 1}.png"
+                    )
+                )
+                val tex = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/gui/slots/tier${requirement.tier - 1}.png")
+//                RenderSystem.setShader { GameRenderer.getPositionTexShader() }
+                drawQuad(graphics, tex, x - 1, y - 1, 18, 18, 0F, 0F, 15F, 15F)
+            }
+//            RenderSystem.disableBlend()
+        }
+    }
+
+    override fun mayPlace(itemStack: ItemStack): Boolean {
+        if(!requirement.allowsItemStack(itemStack)) return false
+        return super.mayPlace(itemStack)
+    }
+
+    override fun set(itemStack: ItemStack) {
+        super.set(itemStack)
+        if(machine != null) {
+            val item = itemStack.item
+            if (item is ComponentItem) {
+                item.whenComponentPlaced(itemStack, machine, requirement.role)
+            }
+        }
+    }
+
+    override fun onTake(player: Player, itemStack: ItemStack) {
+        if(machine != null) {
+            val item = itemStack.item
+            if (item is ComponentItem) {
+                item.whenComponentTaken(itemStack, machine, requirement.role)
+            }
+        }
+        super.onTake(player, itemStack)
+    }
+
+    override fun getMaxStackSize(): Int = 1
+    override fun getMaxStackSize(itemStack: ItemStack): Int = 1
+}

src/main/kotlin/org/neoflock/neocomputers/gui/widget/DynamicSlot.kt

@@ -0,0 +1,45 @@
+package org.neoflock.neocomputers.gui.widget
+
+import com.mojang.blaze3d.systems.RenderSystem
+import com.mojang.blaze3d.vertex.BufferBuilder
+import com.mojang.blaze3d.vertex.BufferUploader
+import com.mojang.blaze3d.vertex.DefaultVertexFormat
+import com.mojang.blaze3d.vertex.Tesselator
+import com.mojang.blaze3d.vertex.VertexConsumer
+import com.mojang.blaze3d.vertex.VertexFormat
+import net.minecraft.client.gui.GuiGraphics
+import net.minecraft.client.renderer.GameRenderer
+import net.minecraft.client.renderer.RenderStateShard
+import net.minecraft.client.renderer.RenderStateShard.ShaderStateShard
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.world.Container
+import net.minecraft.world.inventory.Slot
+import org.neoflock.neocomputers.NeoComputers
+
+open class DynamicSlot(container: Container, slot: Int, x: Int, y: Int) : Slot(container, slot, x, y) {
+
+    val BACKGROUND: ResourceLocation = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/gui/slots/slot.png")
+    val RENDER_TYPE = { r: ResourceLocation ->
+        RenderType.create("nc_gui_slot", DefaultVertexFormat.POSITION_TEX, VertexFormat.Mode.QUADS, RenderType.TRANSIENT_BUFFER_SIZE, RenderType.CompositeState.builder()
+            .setShaderState(ShaderStateShard.POSITION_TEX_SHADER)
+            .setTextureState(RenderStateShard.TextureStateShard(r, false, false))
+            .setTransparencyState(RenderStateShard.TransparencyStateShard.TRANSLUCENT_TRANSPARENCY)
+            .createCompositeState(false))
+    }
+
+    open fun draw(graphics: GuiGraphics, mouseX: Int, mouseY: Int) {
+        drawQuad(graphics, BACKGROUND, x-1, y-1, 18, 18, 0F, 0F, 15F, 15F)
+    }
+
+    fun drawQuad(guiGraphics: GuiGraphics, tex: ResourceLocation, x: Int, y: Int, width: Int, height: Int, u1: Float, v1: Float, u2: Float, v2: Float) {
+        val pose = guiGraphics.pose().last()
+        val builder = guiGraphics.bufferSource().getBuffer(RENDER_TYPE(tex))
+
+        builder.addVertex(pose, x.toFloat(), (y+height).toFloat(), 1f).setUv(u1/15F, v2/15F)
+        builder.addVertex(pose, (x+width).toFloat(), (y+height).toFloat(), 1f).setUv(u2/15F, v2/15F)
+        builder.addVertex(pose, (x+width).toFloat(), y.toFloat(), 1f).setUv(u2/15F, v1/15F)
+        builder.addVertex(pose, x.toFloat(), y.toFloat(), 1f).setUv(u1/15F,v1/15F)
+    }
+
+}

src/main/kotlin/org/neoflock/neocomputers/gui/widget/IconTextButton.kt

@@ -0,0 +1,49 @@
+package org.neoflock.neocomputers.gui.widget
+
+import com.mojang.blaze3d.systems.RenderSystem
+import net.minecraft.client.Minecraft
+import net.minecraft.client.gui.Font
+import net.minecraft.client.gui.GuiGraphics
+import net.minecraft.client.gui.components.Button
+import net.minecraft.client.renderer.texture.TextureAtlas
+import net.minecraft.network.chat.Component
+import net.minecraft.network.chat.MutableComponent
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.util.ResourceLocationPattern
+import org.neoflock.neocomputers.NeoComputers
+import java.util.function.Supplier
+
+class press(val lambda: (IconTextButton) -> Unit) : Button.OnPress {
+    override fun onPress(button: Button) {
+        lambda(button as IconTextButton)
+    }
+}
+
+class narr : Button.CreateNarration {
+    override fun createNarrationMessage(supplier: Supplier<MutableComponent?>): MutableComponent? {
+        return supplier.get() // no narration for u
+    }
+
+}
+
+class IconTextButton(x: Int, y: Int, text: String, val icon: ResourceLocation, val iconw: Int =16, val iconh: Int = 16, width: Int=150, height: Int=20, lambda: (IconTextButton) -> Unit) :
+    Button(x, y, width, height, Component.literal(text),press(lambda), narr()) {
+
+
+    var xOffset = 2
+    override fun renderWidget(guiGraphics: GuiGraphics, mouseX: Int, mouseY: Int, partialTick: Float) {
+        super.renderWidget(guiGraphics, mouseX, mouseY, partialTick)
+
+        RenderSystem.disableBlend() // i hate this
+        val imx = x + xOffset
+        val imy = y + (height/2) - (iconh/2)
+        guiGraphics.blit(icon, imx, imy, 0f, 0f, iconw, iconh, iconw, iconh)
+        RenderSystem.enableBlend()
+    }
+
+    override fun renderString(guiGraphics: GuiGraphics, font: Font, color: Int) {
+        val startx = x + iconw/2 // idk why /2, might be coincidence thing
+        renderScrollingString(guiGraphics, font, message, startx, y, startx+width, y+height, color)
+    }
+
+}

src/main/kotlin/org/neoflock/neocomputers/gui/widget/ImagerButton.kt

@@ -0,0 +1,27 @@
+package org.neoflock.neocomputers.gui.widget
+
+import net.minecraft.client.gui.Gui
+import net.minecraft.client.gui.GuiGraphics
+import net.minecraft.client.gui.components.Button
+import net.minecraft.network.chat.Component
+import net.minecraft.resources.ResourceLocation
+import org.neoflock.neocomputers.NeoComputers
+
+data class ButtonSprites(val sheet: ResourceLocation, val spriteWidth: Int, val spriteHeight: Int, val texWidth: Int, val texHeight: Int)
+
+// minecraft sux
+class ImagerButton(x: Int, y: Int, width: Int, height: Int, val sprites: ButtonSprites, onPress: Button.OnPress) : Button(x, y, width, height, Component.literal(""), onPress, DEFAULT_NARRATION) {
+//    public void renderWidget(GuiGraphics guiGraphics, int i, int j, float f) {
+//        ResourceLocation resourceLocation = this.sprites.get(this.isActive(), this.isHoveredOrFocused());
+//        guiGraphics.blitSprite(resourceLocation, this.getX(), this.getY(), this.width, this.height);
+//    }
+    var pressed = false
+
+    override fun renderWidget(graphics: GuiGraphics, mouseX: Int, mouseY: Int, delta: Float) {
+        val u = if (pressed) 18F else 0F // no clue why it's swapped? prob cooked the coordinates, we gotta get parchment so bad
+        val v = if (this.isHoveredOrFocused) 18F else 0F
+
+        graphics.blit(sprites.sheet, x, y, width, height, u, v, sprites.spriteWidth, sprites.spriteHeight, sprites.texWidth, sprites.texHeight)
+    }
+
+}

src/main/kotlin/org/neoflock/neocomputers/item/CBUSItem.kt

@@ -0,0 +1,20 @@
+package org.neoflock.neocomputers.item
+
+import net.minecraft.world.item.Item
+import net.minecraft.world.item.ItemStack
+import org.neoflock.neocomputers.entity.ComponentUser
+import org.neoflock.neocomputers.gui.widget.ComponentRoles
+
+open class CBUSItem(val tier: Int, val maxComponents: Int): Item(Item.Properties()), ComponentItem {
+    override fun getComponentRoles(itemStack: ItemStack) = setOf(ComponentRoles.BUS)
+
+    override fun getComponentTier(itemStack: ItemStack) = tier
+
+    override fun getComponentCapacity(itemStack: ItemStack) = maxComponents
+
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
+}
+class CBUS0: CBUSItem(1, 8)
+class CBUS1: CBUSItem(2, 12)
+class CBUS2: CBUSItem(3, 16)
+class CBUSCreative: CBUSItem(1, 1024)

src/main/kotlin/org/neoflock/neocomputers/item/CPUItem.kt

@@ -0,0 +1,24 @@
+package org.neoflock.neocomputers.item
+
+import net.minecraft.world.item.Item
+import net.minecraft.world.item.ItemStack
+import org.neoflock.neocomputers.entity.ComponentUser
+import org.neoflock.neocomputers.gui.widget.ComponentRoles
+
+open class CPUItem(val tier: Int, val maxComponents: Int): Item(Item.Properties()), RelayUpgrade {
+    override fun getComponentRoles(itemStack: ItemStack): Set<String> = setOf(ComponentRoles.COMPUTE)
+
+    override fun getComponentTier(itemStack: ItemStack): Int = tier
+
+    override fun getComponentCapacity(itemStack: ItemStack): Int = maxComponents
+
+    override fun getArchitecturesProvided(itemStack: ItemStack): Set<String> = setOf("Lua 5.3")
+
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
+
+    override fun getRelayInterval(itemStack: ItemStack) = 4 / tier
+}
+
+class CPU0: CPUItem(1, 8)
+class CPU1: CPUItem(2, 12)
+class CPU2: CPUItem(3, 16)

src/main/kotlin/org/neoflock/neocomputers/item/ComponentItem.kt

@@ -0,0 +1,63 @@
+package org.neoflock.neocomputers.item
+
+import net.minecraft.world.item.ItemStack
+import org.neoflock.neocomputers.entity.ComponentUser
+import org.neoflock.neocomputers.entity.MachineEntity
+import org.neoflock.neocomputers.entity.MachineEvent
+import org.neoflock.neocomputers.network.DeviceNode
+import org.neoflock.neocomputers.network.Networking
+import java.util.UUID
+
+// need not necessarily be just a component, can be upgrades as well
+interface ComponentItem {
+    fun getComponentRoles(itemStack: ItemStack): Set<String>
+    fun getComponentTier(itemStack: ItemStack): Int
+
+    // Get machine properties they can influence
+    fun getMemoryCapacity(itemStack: ItemStack): Int = 0
+    fun getComponentCapacity(itemStack: ItemStack): Int = 0
+    fun getArchitecturesProvided(itemStack: ItemStack): Set<String> = setOf()
+
+    // Component placed, node must now exist
+    fun whenComponentPlaced(itemStack: ItemStack, machine: ComponentUser?, newRole: String) {
+        val oldNode = getComponentNode(itemStack)
+        if(oldNode != null) Networking.removeNode(oldNode) // did a mod forget to call whenComponentTaken?
+        val node = toComponentNode(itemStack, machine) ?: return
+        Networking.addNode(node)
+        machine?.getMachineNode()?.connectTo(node)
+    }
+
+    // Component taken, and thus removed
+    fun whenComponentTaken(itemStack: ItemStack, machine: ComponentUser?, previousRole: String) {
+        val node = getComponentNode(itemStack) ?: return
+        // removing disconnects
+        Networking.removeNode(node)
+    }
+
+    // To node, if applicable. Meant to create the node, but not add it, as it will use the itemStack's address to find it again
+    fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?): DeviceNode?
+
+    // Gets the node associated to an item, if it exists
+    fun getComponentNode(itemStack: ItemStack): DeviceNode? {
+        val address = itemStack.get(DataComponents.ADDRESS) ?: return null
+        val uuid = UUID.fromString(address) ?: return null
+        return Networking.getNode(uuid)
+    }
+
+    fun ensureHasAddress(itemStack: ItemStack): UUID {
+        if(!itemStack.has(DataComponents.ADDRESS)) {
+            itemStack.set(DataComponents.ADDRESS, UUID.randomUUID().toString())
+        }
+        return UUID.fromString(itemStack.get(DataComponents.ADDRESS))
+    }
+
+    fun onMachineEvent(itemStack: ItemStack, machine: MachineEntity, event: MachineEvent) {}
+}
+
+// A special ComponentItem which specifies upgrades specific to the relay
+interface RelayUpgrade: ComponentItem {
+    fun getRelayInterval(itemStack: ItemStack): Int? = null
+    fun getRelayBufferSize(itemStack: ItemStack): Int? = null
+    fun getRelayQueueSize(itemStack: ItemStack): Int? = null
+    fun isRelayCompatibleCard(itemStack: ItemStack): Boolean = false
+}

src/main/kotlin/org/neoflock/neocomputers/item/DataCard.kt

@@ -0,0 +1,45 @@
+package org.neoflock.neocomputers.item
+
+import net.minecraft.network.chat.Component
+import net.minecraft.world.item.Item
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.item.TooltipFlag
+import org.neoflock.neocomputers.entity.ComponentUser
+import org.neoflock.neocomputers.gui.widget.ComponentRoles
+import org.neoflock.neocomputers.utils.Formatting
+
+// Note: We'll prob want to replace them with NN component configs later on
+
+open class DataCard(val tier: Int, val limit: Long): Item(Properties()), ComponentItem {
+    override fun getComponentRoles(itemStack: ItemStack): Set<String> = setOf(ComponentRoles.CARD)
+
+    override fun getComponentTier(itemStack: ItemStack): Int = tier
+
+    override fun whenComponentPlaced(itemStack: ItemStack, machine: ComponentUser?, newRole: String) {
+        if(machine != null) ensureHasAddress(itemStack)
+        super.whenComponentPlaced(itemStack, machine, newRole)
+    }
+
+    // TODO: Modem Component
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
+
+    override fun appendHoverText(
+        itemStack: ItemStack,
+        tooltipContext: TooltipContext,
+        list: MutableList<Component?>,
+        tooltipFlag: TooltipFlag
+    ) {
+        if(tooltipFlag.isAdvanced) {
+            val addr = itemStack.get(DataComponents.ADDRESS)
+            val addrComp = if(addr == null) Component.translatable("neocomputers.noaddr") else Component.literal(addr)
+            list.addLast(addrComp)
+            list.addLast(Component.translatable("neocomputers.data.limit", Formatting.formatMemory(limit)))
+            // TODO: show encryption support
+        }
+        super.appendHoverText(itemStack, tooltipContext, list, tooltipFlag)
+    }
+}
+
+class DataCard0: DataCard(1, 1 shl 20)
+class DataCard1: DataCard(2, 1 shl 20)
+class DataCard2: DataCard(3, 1 shl 20)

src/main/kotlin/org/neoflock/neocomputers/item/DataComponents.kt

@@ -0,0 +1,32 @@
+package org.neoflock.neocomputers.item
+
+import com.mojang.serialization.Codec
+import net.minecraft.core.Registry
+import net.minecraft.core.component.DataComponentType
+import net.minecraft.core.registries.BuiltInRegistries
+import net.minecraft.resources.ResourceLocation
+import org.neoflock.neocomputers.NeoComputers
+import java.nio.ByteBuffer
+
+object DataComponents {
+    val ADDRESS = Registry.register(BuiltInRegistries.DATA_COMPONENT_TYPE, ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "address"),
+        DataComponentType.builder<String>().persistent(Codec.STRING).build())
+    val LABEL = Registry.register(BuiltInRegistries.DATA_COMPONENT_TYPE, ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "label"),
+        DataComponentType.builder<String>().persistent(Codec.STRING).build())
+    val READONLY = Registry.register(BuiltInRegistries.DATA_COMPONENT_TYPE, ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "readonly"),
+        DataComponentType.builder<Boolean>().persistent(Codec.BOOL).build())
+    val ARCH = Registry.register(BuiltInRegistries.DATA_COMPONENT_TYPE, ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "architecture"),
+        DataComponentType.builder<String>().persistent(Codec.STRING).build())
+
+    val EEPROM_CODE = Registry.register(BuiltInRegistries.DATA_COMPONENT_TYPE, ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "eeprom_code"),
+        DataComponentType.builder<ByteBuffer>().persistent(Codec.BYTE_BUFFER).build())
+    val EEPROM_DATA = Registry.register(BuiltInRegistries.DATA_COMPONENT_TYPE, ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "eeprom_data"),
+        DataComponentType.builder<ByteBuffer>().persistent(Codec.BYTE_BUFFER).build())
+    val EEPROM_CODESIZE = Registry.register(BuiltInRegistries.DATA_COMPONENT_TYPE, ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "eeprom_codesize"),
+        DataComponentType.builder<Int>().persistent(Codec.INT).build())
+    val EEPROM_DATASIZE = Registry.register(BuiltInRegistries.DATA_COMPONENT_TYPE, ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "eeprom_datasize"),
+        DataComponentType.builder<Int>().persistent(Codec.INT).build())
+
+    val TUNNEL_CHANNEL = Registry.register(BuiltInRegistries.DATA_COMPONENT_TYPE, ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "tunnel_channel"),
+        DataComponentType.builder<String>().persistent(Codec.STRING).build())
+}

src/main/kotlin/org/neoflock/neocomputers/item/EEPROMItem.kt

@@ -0,0 +1,71 @@
+package org.neoflock.neocomputers.item
+
+import net.minecraft.network.chat.Component
+import net.minecraft.world.item.Item
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.item.TooltipFlag
+import org.neoflock.neocomputers.entity.ComponentUser
+import org.neoflock.neocomputers.gui.widget.ComponentRoles
+import org.neoflock.neocomputers.utils.Formatting
+import java.nio.ByteBuffer
+
+fun getEEPROMProperties(codeCap: Int, dataCap: Int): Item.Properties = Item.Properties()
+    .component(DataComponents.EEPROM_CODE, ByteBuffer.allocate(codeCap))
+    .component(DataComponents.EEPROM_DATA, ByteBuffer.allocate(dataCap))
+    .component(DataComponents.EEPROM_CODESIZE, 0)
+    .component(DataComponents.EEPROM_DATASIZE, 0)
+    .component(DataComponents.LABEL, "")
+    .component(DataComponents.READONLY, false)
+
+open class EEPROMItem(val tier: Int, val codeCapacity: Int, val dataCapacity: Int): Item(getEEPROMProperties(codeCapacity, dataCapacity)), ComponentItem {
+    override fun getComponentRoles(itemStack: ItemStack): Set<String> = setOf(ComponentRoles.FIRMWARE)
+
+    override fun getComponentTier(itemStack: ItemStack): Int = tier
+
+    override fun getMemoryCapacity(itemStack: ItemStack): Int = 0
+
+    override fun getComponentCapacity(itemStack: ItemStack): Int = 0
+
+    override fun whenComponentPlaced(itemStack: ItemStack, machine: ComponentUser?, newRole: String) {
+        if(machine != null) ensureHasAddress(itemStack)
+        super.whenComponentPlaced(itemStack, machine, newRole)
+    }
+
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
+
+    override fun appendHoverText(
+        itemStack: ItemStack,
+        tooltipContext: TooltipContext,
+        list: MutableList<Component?>,
+        tooltipFlag: TooltipFlag
+    ) {
+        if(tooltipFlag.isAdvanced) {
+            val codeSize = itemStack.get(DataComponents.EEPROM_CODESIZE) ?: 0
+            val dataSize = itemStack.get(DataComponents.EEPROM_DATASIZE) ?: 0
+            val arch = itemStack.get(DataComponents.ARCH)
+            val addr = itemStack.get(DataComponents.ADDRESS)
+            val readonly = itemStack.get(DataComponents.READONLY) ?: false
+            val addrComp = if(addr == null) Component.translatable("neocomputers.noaddr") else Component.literal(addr)
+            list.addLast(addrComp)
+            if(arch != null) {
+                list.addLast(Component.translatable("neocomputers.arch", arch))
+            }
+            list.addLast(Component.translatable("neocomputers.eeprom.codeused", Formatting.formatMemory(codeSize.toLong()),
+                Formatting.formatMemory(codeCapacity.toLong())))
+            list.addLast(Component.translatable("neocomputers.eeprom.dataused", Formatting.formatMemory(dataSize.toLong()),
+                Formatting.formatMemory(dataCapacity.toLong())))
+            list.addLast(Component.translatable(if(readonly) "neocomputers.readonly" else "neocomputers.readwrite"))
+        }
+        super.appendHoverText(itemStack, tooltipContext, list, tooltipFlag)
+    }
+
+    override fun getName(itemStack: ItemStack): Component? {
+        if(itemStack.has(DataComponents.LABEL)) {
+            val label = itemStack.get(DataComponents.LABEL) ?: ""
+            if(label.isNotEmpty()) return Component.literal(label)
+        }
+        return super.getName(itemStack)
+    }
+}
+
+class EEPROM0: EEPROMItem(1, 4096, 256)

src/main/kotlin/org/neoflock/neocomputers/item/GPUCard.kt

@@ -0,0 +1,44 @@
+package org.neoflock.neocomputers.item
+
+import net.minecraft.network.chat.Component
+import net.minecraft.world.item.Item
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.item.TooltipFlag
+import org.neoflock.neocomputers.entity.ComponentUser
+import org.neoflock.neocomputers.gui.widget.ComponentRoles
+
+// Note: We'll prob want to replace them with NN component configs later on
+
+open class GPUCard(val tier: Int, val vram: Long): Item(Properties()), ComponentItem {
+    override fun getComponentRoles(itemStack: ItemStack): Set<String> = setOf(ComponentRoles.CARD)
+
+    override fun getComponentTier(itemStack: ItemStack): Int = tier
+
+    override fun whenComponentPlaced(itemStack: ItemStack, machine: ComponentUser?, newRole: String) {
+        if(machine != null) ensureHasAddress(itemStack)
+        super.whenComponentPlaced(itemStack, machine, newRole)
+    }
+
+    // TODO: GPU Component
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
+
+    override fun appendHoverText(
+        itemStack: ItemStack,
+        tooltipContext: TooltipContext,
+        list: MutableList<Component?>,
+        tooltipFlag: TooltipFlag
+    ) {
+        if(tooltipFlag.isAdvanced) {
+            val addr = itemStack.get(DataComponents.ADDRESS)
+            val addrComp = if(addr == null) Component.translatable("neocomputers.noaddr") else Component.literal(addr)
+            list.addLast(addrComp)
+            list.addLast(Component.translatable("neocomputers.gpu.vram", vram))
+            // TODO: show VRAM usage and whatnot
+        }
+        super.appendHoverText(itemStack, tooltipContext, list, tooltipFlag)
+    }
+}
+
+class GPUCard0: GPUCard(1, 5000)
+class GPUCard1: GPUCard(2, 10000)
+class GPUCard2: GPUCard(3, 20000)

src/main/kotlin/org/neoflock/neocomputers/item/HDDItem.kt

@@ -0,0 +1,63 @@
+package org.neoflock.neocomputers.item
+
+import net.minecraft.network.chat.Component
+import net.minecraft.world.item.Item
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.item.TooltipFlag
+import org.neoflock.neocomputers.entity.ComponentUser
+import org.neoflock.neocomputers.gui.widget.ComponentRoles
+import org.neoflock.neocomputers.utils.Formatting
+
+fun getDiskProperties(): Item.Properties = Item.Properties()
+    .component(DataComponents.LABEL, "")
+    .component(DataComponents.READONLY, false)
+
+open class HardDiskItem(val tier: Int, val capacity: Long, val relayQueueSize: Int): Item(getDiskProperties()), RelayUpgrade {
+    override fun getComponentRoles(itemStack: ItemStack): Set<String> = setOf(ComponentRoles.STORAGE)
+
+    override fun getComponentTier(itemStack: ItemStack): Int = tier
+
+    override fun getMemoryCapacity(itemStack: ItemStack): Int = 0
+
+    override fun getComponentCapacity(itemStack: ItemStack): Int = 0
+
+    override fun whenComponentPlaced(itemStack: ItemStack, machine: ComponentUser?, newRole: String) {
+        if(machine != null) ensureHasAddress(itemStack)
+        super.whenComponentPlaced(itemStack, machine, newRole)
+    }
+
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
+
+    override fun appendHoverText(
+        itemStack: ItemStack,
+        tooltipContext: TooltipContext,
+        list: MutableList<Component?>,
+        tooltipFlag: TooltipFlag
+    ) {
+        if(tooltipFlag.isAdvanced) {
+            val addr = itemStack.get(DataComponents.ADDRESS)
+            val readonly = itemStack.get(DataComponents.READONLY) ?: false
+            val spaceUsed: Long = 0
+            val addrComp = if(addr == null) Component.translatable("neocomputers.noaddr") else Component.literal(addr)
+            list.addLast(addrComp)
+            list.addLast(Component.translatable("neocomputers.disk.spaceused", Formatting.formatMemory(spaceUsed),
+                Formatting.formatMemory(capacity)))
+            list.addLast(Component.translatable(if(readonly) "neocomputers.readonly" else "neocomputers.readwrite"))
+        }
+        super.appendHoverText(itemStack, tooltipContext, list, tooltipFlag)
+    }
+
+    override fun getName(itemStack: ItemStack): Component? {
+        if(itemStack.has(DataComponents.LABEL)) {
+            val label = itemStack.get(DataComponents.LABEL) ?: ""
+            if(label.isNotEmpty()) return Component.literal(label)
+        }
+        return super.getName(itemStack)
+    }
+
+    override fun getRelayQueueSize(itemStack: ItemStack) = relayQueueSize
+}
+
+class HardDisk0: HardDiskItem(1, 1 shl 20, 30)
+class HardDisk1: HardDiskItem(2, 2 shl 20, 40)
+class HardDisk2: HardDiskItem(3, 4 shl 20, 50)

src/main/kotlin/org/neoflock/neocomputers/item/InternetCard.kt

@@ -0,0 +1,37 @@
+package org.neoflock.neocomputers.item
+
+import net.minecraft.network.chat.Component
+import net.minecraft.world.item.Item
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.item.TooltipFlag
+import org.neoflock.neocomputers.entity.ComponentUser
+import org.neoflock.neocomputers.gui.widget.ComponentRoles
+
+class InternetCard: Item(Item.Properties()), ComponentItem {
+    override fun getComponentRoles(itemStack: ItemStack): Set<String> = setOf(ComponentRoles.CARD, ComponentRoles.INET)
+
+    override fun getComponentTier(itemStack: ItemStack): Int = 2
+
+    override fun whenComponentPlaced(itemStack: ItemStack, machine: ComponentUser?, newRole: String) {
+        if(machine != null) ensureHasAddress(itemStack)
+        super.whenComponentPlaced(itemStack, machine, newRole)
+    }
+
+    // TODO: Internet Component
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
+
+    override fun appendHoverText(
+        itemStack: ItemStack,
+        tooltipContext: TooltipContext,
+        list: MutableList<Component?>,
+        tooltipFlag: TooltipFlag
+    ) {
+        if(tooltipFlag.isAdvanced) {
+            val addr = itemStack.get(DataComponents.ADDRESS)
+            val addrComp = if(addr == null) Component.translatable("neocomputers.noaddr") else Component.literal(addr)
+            list.addLast(addrComp)
+            // TODO: show HTTP/TCP/TLS support
+        }
+        super.appendHoverText(itemStack, tooltipContext, list, tooltipFlag)
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/item/Items.kt

@@ -0,0 +1,51 @@
+package org.neoflock.neocomputers.item
+
+import dev.architectury.registry.registries.DeferredRegister
+import net.minecraft.core.registries.Registries
+import net.minecraft.world.item.Item
+import org.neoflock.neocomputers.NeoComputers
+
+object Items {
+    val ITEMS: DeferredRegister<Item> = DeferredRegister.create(NeoComputers.MODID, Registries.ITEM)
+
+    val MEM0 = ITEMS.register("memory0") { MemoryTier1() }
+    val MEM1 = ITEMS.register("memory1") { MemoryTier1_5() }
+    val MEM2 = ITEMS.register("memory2") { MemoryTier2() }
+    val MEM3 = ITEMS.register("memory3") { MemoryTier2_5() }
+    val MEM4 = ITEMS.register("memory4") { MemoryTier3() }
+    val MEM5 = ITEMS.register("memory5") { MemoryTier3_5() }
+
+    val EE0 = ITEMS.register("eeprom0") { EEPROM0() }
+
+    val CPU0 = ITEMS.register("cpu0") { CPU0() }
+    val CPU1 = ITEMS.register("cpu1") { CPU1() }
+    val CPU2 = ITEMS.register("cpu2") { CPU2() }
+
+    val CBUS0 = ITEMS.register("cbus0") { CBUS0() }
+    val CBUS1 = ITEMS.register("cbus1") { CBUS1() }
+    val CBUS2 = ITEMS.register("cbus2") { CBUS2() }
+    val CBUS_CREATIVE = ITEMS.register("cbus_creative") { CBUSCreative() }
+
+    val INET = ITEMS.register("inet") { InternetCard() }
+    val TUNNEL = ITEMS.register("tunnel") { TunnelCard() }
+    val LAN = ITEMS.register("lan") { LANCard() }
+    val WLAN0 = ITEMS.register("wlan0") { WLANCard0() }
+    val WLAN1 = ITEMS.register("wlan1") { WLANCard1() }
+
+    val DATA0 = ITEMS.register("data0") { DataCard0() }
+    val DATA1 = ITEMS.register("data1") { DataCard1() }
+    val DATA2 = ITEMS.register("data2") { DataCard2() }
+
+    val GPU0 = ITEMS.register("gpu0") { GPUCard0() }
+    val GPU1 = ITEMS.register("gpu1") { GPUCard1() }
+    val GPU2 = ITEMS.register("gpu2") { GPUCard2() }
+
+    val HDD0 = ITEMS.register("hdd0") { HardDisk0() }
+    val HDD1 = ITEMS.register("hdd1") { HardDisk1() }
+    val HDD2 = ITEMS.register("hdd2") { HardDisk2() }
+
+    val REDIO0 = ITEMS.register("redio0") { RedstoneCard0() }
+    val REDIO1 = ITEMS.register("redio1") { RedstoneCard1() }
+
+    val SERVER0 = ITEMS.register("server0") { ServerItem() }
+}

src/main/kotlin/org/neoflock/neocomputers/item/MemoryItem.kt

@@ -0,0 +1,43 @@
+package org.neoflock.neocomputers.item
+
+import net.minecraft.network.chat.Component
+import net.minecraft.world.item.Item
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.item.TooltipFlag
+import org.neoflock.neocomputers.entity.ComponentUser
+import org.neoflock.neocomputers.gui.widget.ComponentRoles
+import org.neoflock.neocomputers.utils.Formatting
+
+open class MemoryItem(val tier: Int, val capacity: Int, val relayBuf: Int): Item(Item.Properties().`arch$tab`(Tabs.TAB)), RelayUpgrade {
+    override fun getComponentRoles(itemStack: ItemStack) = setOf(ComponentRoles.MEMORY)
+
+    override fun getComponentTier(itemStack: ItemStack): Int = tier
+
+    override fun getMemoryCapacity(itemStack: ItemStack): Int = capacity
+
+    override fun getComponentCapacity(itemStack: ItemStack): Int = 0
+
+    // no node for memory
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
+
+    override fun appendHoverText(
+        itemStack: ItemStack,
+        tooltipContext: TooltipContext,
+        list: MutableList<Component?>,
+        tooltipFlag: TooltipFlag
+    ) {
+        if(tooltipFlag.isAdvanced) {
+            list.addLast(Component.translatable("neocomputers.memory.capacity", Formatting.formatMemory(capacity.toLong())))
+        }
+        super.appendHoverText(itemStack, tooltipContext, list, tooltipFlag)
+    }
+
+    override fun getRelayBufferSize(itemStack: ItemStack) = relayBuf
+}
+
+class MemoryTier1(): MemoryItem(1, 192 shl 10, 2)
+class MemoryTier1_5(): MemoryItem(1, 256 shl 10, 3)
+class MemoryTier2(): MemoryItem(2, 384 shl 10, 4)
+class MemoryTier2_5(): MemoryItem(2, 512 shl 10, 5)
+class MemoryTier3(): MemoryItem(3, 768 shl 10, 6)
+class MemoryTier3_5(): MemoryItem(3, 1 shl 20, 7)

src/main/kotlin/org/neoflock/neocomputers/item/NetworkCard.kt

@@ -0,0 +1,44 @@
+package org.neoflock.neocomputers.item
+
+import net.minecraft.network.chat.Component
+import net.minecraft.world.item.Item
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.item.TooltipFlag
+import org.neoflock.neocomputers.entity.ComponentUser
+import org.neoflock.neocomputers.gui.widget.ComponentRoles
+
+open class NetworkCard(val tier: Int, val maxRange: Int, val isWired: Boolean): Item(Properties()), ComponentItem {
+    override fun getComponentRoles(itemStack: ItemStack): Set<String> = setOf(ComponentRoles.CARD, ComponentRoles.NETWORK)
+
+    override fun getComponentTier(itemStack: ItemStack): Int = tier
+
+    override fun whenComponentPlaced(itemStack: ItemStack, machine: ComponentUser?, newRole: String) {
+        if(machine != null) ensureHasAddress(itemStack)
+        super.whenComponentPlaced(itemStack, machine, newRole)
+    }
+
+    // TODO: Modem Component
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
+
+    override fun appendHoverText(
+        itemStack: ItemStack,
+        tooltipContext: TooltipContext,
+        list: MutableList<Component?>,
+        tooltipFlag: TooltipFlag
+    ) {
+        if(tooltipFlag.isAdvanced) {
+            val addr = itemStack.get(DataComponents.ADDRESS)
+            val addrComp = if(addr == null) Component.translatable("neocomputers.noaddr") else Component.literal(addr)
+            list.addLast(addrComp)
+            if(maxRange > 0) {
+                list.addLast(Component.translatable("neocomputers.wlan.range", maxRange))
+            }
+            // TODO: show max packet size and whatnot
+        }
+        super.appendHoverText(itemStack, tooltipContext, list, tooltipFlag)
+    }
+}
+
+class LANCard: NetworkCard(1, 0, true)
+class WLANCard0: NetworkCard(1, 16, true)
+class WLANCard1: NetworkCard(1, 400, true)

src/main/kotlin/org/neoflock/neocomputers/item/RackItem.kt

@@ -0,0 +1,62 @@
+package org.neoflock.neocomputers.item
+
+import com.mojang.blaze3d.shaders.Shader
+import com.mojang.blaze3d.vertex.DefaultVertexFormat
+import com.mojang.blaze3d.vertex.PoseStack
+import com.mojang.blaze3d.vertex.VertexConsumer
+import com.mojang.blaze3d.vertex.VertexFormat
+import net.minecraft.client.renderer.MultiBufferSource
+import net.minecraft.client.renderer.RenderStateShard
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.client.renderer.texture.OverlayTexture
+import net.minecraft.resources.ResourceLocation
+import org.neoflock.neocomputers.NeoComputers
+
+interface RackItem {
+//    companion object {
+//        val RENDER_TYPE = {l: ResourceLocation ->
+//            RenderType.create("nc_server", DefaultVertexFormat.POSITION_COLOR_TEX_LIGHTMAP, VertexFormat.Mode.QUADS, RenderType.SMALL_BUFFER_SIZE, RenderType.CompositeState.builder()
+//                .setShaderState(RenderStateShard.ShaderStateShard.POSITION_COLOR_TEX_LIGHTMAP_SHADER)
+//                .setLightmapState(RenderStateShard.LIGHTMAP)
+//                .setTextureState(RenderStateShard.TextureStateShard(l, false, false))
+//                .createCompositeState(false))
+//        }
+//    }
+    val TOP_TEX: ResourceLocation
+        get() = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/block/generic_top.png")
+
+    val FRONT_TEX: ResourceLocation
+        get() = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/block/rack_server.png")
+
+    fun render_lights(source: MultiBufferSource, stack: PoseStack, light: Int)
+
+    fun render(source: MultiBufferSource, stack: PoseStack, light: Int, v_offset: Float = 2f) {
+        val pose = stack.last()
+
+
+//        var buffer = source.getBuffer(RenderType.gui()) // TODO: correct rendertype
+        var buffer = source.getBuffer(RenderType.entitySolid(TOP_TEX))
+//        val u1 = 1/16f
+        buffer.addVertex(pose, 0f, 0f, 0f).setUv(1/16f, 15/16f).setColor(1f, 1f, 1f, 1f).setLight(light).setNormal(pose, 0f, -1f, 0f).setOverlay(OverlayTexture.NO_OVERLAY)
+        buffer.addVertex(pose, 14/16f, 0f, 0f).setUv(1/16f, 1/16f).setColor(1f, 1f, 1f, 1f).setLight(light).setNormal(pose, 0f, -1f, 0f).setOverlay(OverlayTexture.NO_OVERLAY)
+        buffer.addVertex(pose, 14/16f, 0f, 14/16f).setUv(15/16f, 1/16f).setColor(1f, 1f, 1f, 1f).setLight(light).setNormal(pose, 0f, -1f, 0f).setOverlay(OverlayTexture.NO_OVERLAY)
+        buffer.addVertex(pose, 0f, 0f, 14/16f).setUv(15/16f, 1/16f).setColor(1f, 1f, 1f, 1f).setLight(light).setNormal(pose, 0f, -1f, 0f).setOverlay(OverlayTexture.NO_OVERLAY)
+
+        buffer.addVertex(pose, 0f, 3/16f, 14/16f).setUv(15/16f, 1/16f).setColor(1f, 1f, 1f, 1f).setLight(light).setNormal(pose, 0f, 1f, 0f).setOverlay(OverlayTexture.NO_OVERLAY)
+        buffer.addVertex(pose, 14/16f, 3/16f, 14/16f).setUv(15/16f, 15/16f).setColor(1f, 1f, 1f, 1f).setLight(light).setNormal(pose, 0f, 1f, 0f).setOverlay(OverlayTexture.NO_OVERLAY)
+        buffer.addVertex(pose, 14/16f, 3/16f, 0f).setUv(1/16f, 15/16f).setColor(1f, 1f, 1f, 1f).setLight(light).setNormal(pose, 0f, 1f, 0f).setOverlay(OverlayTexture.NO_OVERLAY)
+        buffer.addVertex(pose, 0f, 3/16f, 0f).setUv(1/16f, 1/16f).setColor(1f, 1f, 1f, 1f).setLight(light).setNormal(pose, 0f, 1f, 0f).setOverlay(OverlayTexture.NO_OVERLAY)
+
+        buffer = source.getBuffer(RenderType.entitySolid(FRONT_TEX))
+        buffer.addVertex(pose, 14/16f, 3/16f, 14/16f).setUv(1/16f, v_offset/16f).setColor(1f, 1f, 1f, 1f).setLight(light).setNormal(pose, 1f, 0f, 0f).setOverlay(OverlayTexture.NO_OVERLAY)
+        buffer.addVertex(pose, 14/16f, 0f, 14/16f).setUv(1/16f, (v_offset+3)/16f).setColor(1f, 1f, 1f, 1f).setLight(light).setNormal(pose, 1f, 0f, 0f).setOverlay(OverlayTexture.NO_OVERLAY)
+        buffer.addVertex(pose, 14/16f, 0/16f, 0/16f).setUv(15/16f, (v_offset+3)/16f).setColor(1f, 1f, 1f, 1f).setLight(light).setNormal(pose, 1f, 0f, 0f).setOverlay(OverlayTexture.NO_OVERLAY)
+        buffer.addVertex(pose, 14/16f, 3/16f, 0/16f).setUv(15/16f, v_offset/16f).setColor(1f, 1f, 1f, 1f).setLight(light).setNormal(pose, 1f, 0f, 0f).setOverlay(OverlayTexture.NO_OVERLAY)
+
+        stack.pushPose()
+        stack.translate((14/16f)+0.001F, 0f, 0f)
+        render_lights(source, stack, light)
+        stack.popPose()
+    }
+
+}

src/main/kotlin/org/neoflock/neocomputers/item/RedstoneCard.kt

@@ -0,0 +1,41 @@
+package org.neoflock.neocomputers.item
+
+import net.minecraft.network.chat.Component
+import net.minecraft.world.item.Item
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.item.TooltipFlag
+import org.neoflock.neocomputers.entity.ComponentUser
+import org.neoflock.neocomputers.gui.widget.ComponentRoles
+
+// Note: We'll prob want to replace them with NN component configs later on
+
+open class RedstoneCard(val tier: Int): Item(Properties()), ComponentItem {
+    override fun getComponentRoles(itemStack: ItemStack): Set<String> = setOf(ComponentRoles.CARD)
+
+    override fun getComponentTier(itemStack: ItemStack): Int = tier
+
+    override fun whenComponentPlaced(itemStack: ItemStack, machine: ComponentUser?, newRole: String) {
+        if(machine != null) ensureHasAddress(itemStack)
+        super.whenComponentPlaced(itemStack, machine, newRole)
+    }
+
+    // TODO: Redstone Component
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
+
+    override fun appendHoverText(
+        itemStack: ItemStack,
+        tooltipContext: TooltipContext,
+        list: MutableList<Component?>,
+        tooltipFlag: TooltipFlag
+    ) {
+        if(tooltipFlag.isAdvanced) {
+            val addr = itemStack.get(DataComponents.ADDRESS)
+            val addrComp = if(addr == null) Component.translatable("neocomputers.noaddr") else Component.literal(addr)
+            // TODO: show redstone and whatnot
+        }
+        super.appendHoverText(itemStack, tooltipContext, list, tooltipFlag)
+    }
+}
+
+class RedstoneCard0: RedstoneCard(1)
+class RedstoneCard1: RedstoneCard(2)

src/main/kotlin/org/neoflock/neocomputers/item/ServerItem.kt

@@ -0,0 +1,26 @@
+package org.neoflock.neocomputers.item
+
+import com.mojang.blaze3d.vertex.PoseStack
+import net.minecraft.client.renderer.MultiBufferSource
+import net.minecraft.client.renderer.item.ItemProperties
+import net.minecraft.world.item.Item
+import net.minecraft.world.item.ItemStack
+import org.neoflock.neocomputers.entity.ComponentUser
+import org.neoflock.neocomputers.gui.widget.ComponentRoles
+import org.neoflock.neocomputers.network.DeviceNode
+
+class ServerItem() : Item(Properties()), ComponentItem, RackItem {
+    override fun getComponentRoles(itemStack: ItemStack): Set<String> = setOf(ComponentRoles.RACK_MOUNTABLE)
+
+    override fun getComponentTier(itemStack: ItemStack): Int = 0
+
+    override fun toComponentNode(
+        itemStack: ItemStack,
+        machine: ComponentUser?
+    ): DeviceNode? {
+        return null // TODO: atom machine item plz
+    }
+
+    override fun render_lights(source: MultiBufferSource, stack: PoseStack, light: Int) {
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/item/Tabs.kt

@@ -0,0 +1,83 @@
+package org.neoflock.neocomputers.item
+
+import dev.architectury.registry.CreativeTabRegistry
+import dev.architectury.registry.registries.DeferredRegister
+import net.minecraft.client.Minecraft
+import net.minecraft.core.registries.Registries
+import net.minecraft.network.chat.Component
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.world.item.CreativeModeTab
+import net.minecraft.world.item.ItemStack
+import org.neoflock.neocomputers.NeoComputers
+import java.nio.ByteBuffer
+
+object Tabs {
+    val TABS: DeferredRegister<CreativeModeTab> =
+        DeferredRegister.create(NeoComputers.MODID, Registries.CREATIVE_MODE_TAB)
+
+    val TAB = TABS.register("neocomputers_tab") {
+        // its only experimental once they change it
+        CreativeTabRegistry.create { builder ->
+            builder.title(Component.literal("NeoComputers"))
+            builder.icon {
+                ItemStack(Items.MEM0.get())
+            }
+            builder.displayItems { parameters, output ->
+                // TODO: get rid of arch$tab and this shi and replace with loop over items registry
+                output.accept(ItemStack(Items.CPU0.get()))
+                output.accept(ItemStack(Items.CPU1.get()))
+                output.accept(ItemStack(Items.CPU2.get()))
+
+                output.accept(ItemStack(Items.CBUS0.get()))
+                output.accept(ItemStack(Items.CBUS1.get()))
+                output.accept(ItemStack(Items.CBUS2.get()))
+                output.accept(ItemStack(Items.CBUS_CREATIVE.get()))
+
+                output.accept(ItemStack(Items.DATA0.get()))
+                output.accept(ItemStack(Items.DATA1.get()))
+                output.accept(ItemStack(Items.DATA2.get()))
+
+                output.accept(ItemStack(Items.GPU0.get()))
+                output.accept(ItemStack(Items.GPU1.get()))
+                output.accept(ItemStack(Items.GPU2.get()))
+
+                output.accept(ItemStack(Items.HDD0.get()))
+                output.accept(ItemStack(Items.HDD1.get()))
+                output.accept(ItemStack(Items.HDD2.get()))
+
+                output.accept(ItemStack(Items.INET.get()))
+                output.accept(ItemStack(Items.TUNNEL.get()))
+                output.accept(ItemStack(Items.LAN.get()))
+                output.accept(ItemStack(Items.WLAN0.get()))
+                output.accept(ItemStack(Items.WLAN1.get()))
+
+                output.accept(ItemStack(Items.REDIO0.get()))
+                output.accept(ItemStack(Items.REDIO1.get()))
+
+                output.accept(ItemStack(Items.EE0.get()))
+                output.accept(ItemStack(Items.SERVER0.get()))
+
+                // Criminal black magic to put LuaBIOS EEPROM in the tabs
+                do {
+                    val luaBios = ItemStack(Items.EE0.get())
+                    val res = Minecraft.getInstance().resourceManager.getResourceOrThrow(
+                        ResourceLocation.fromNamespaceAndPath(
+                            NeoComputers.MODID,
+                            "lua/oc_bios.lua"
+                        )
+                    )
+                    val stream = res.openAsReader()
+                    val code = stream.readText().encodeToByteArray()
+                    stream.close()
+                    val codeBuf = ByteBuffer.allocate(code.size)
+                    codeBuf.put(code)
+                    luaBios.set(DataComponents.LABEL, "Lua BIOS")
+                    luaBios.set(DataComponents.ARCH, "Lua 5.2")
+                    luaBios.set(DataComponents.EEPROM_CODE, codeBuf)
+                    luaBios.set(DataComponents.EEPROM_CODESIZE, code.size)
+                    output.accept(luaBios)
+                } while(false)
+            }
+        }
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/item/TunnelCard.kt

@@ -0,0 +1,39 @@
+package org.neoflock.neocomputers.item
+
+import net.minecraft.network.chat.Component
+import net.minecraft.world.item.Item
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.item.TooltipFlag
+import org.neoflock.neocomputers.entity.ComponentUser
+import org.neoflock.neocomputers.gui.widget.ComponentRoles
+
+class TunnelCard: Item(Properties().component(DataComponents.TUNNEL_CHANNEL, "creative")), ComponentItem {
+    // yes, we're counting TUNNEL as a conventional networking card
+    override fun getComponentRoles(itemStack: ItemStack): Set<String> = setOf(ComponentRoles.CARD, ComponentRoles.NETWORK)
+
+    override fun getComponentTier(itemStack: ItemStack): Int = 3
+
+    override fun whenComponentPlaced(itemStack: ItemStack, machine: ComponentUser?, newRole: String) {
+        if(machine != null) ensureHasAddress(itemStack)
+        super.whenComponentPlaced(itemStack, machine, newRole)
+    }
+
+    // TODO: Tunnel Component
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
+
+    override fun appendHoverText(
+        itemStack: ItemStack,
+        tooltipContext: TooltipContext,
+        list: MutableList<Component?>,
+        tooltipFlag: TooltipFlag
+    ) {
+        if(tooltipFlag.isAdvanced) {
+            val addr = itemStack.get(DataComponents.ADDRESS)
+            val addrComp = if(addr == null) Component.translatable("neocomputers.noaddr") else Component.literal(addr)
+            list.addLast(addrComp)
+            list.addLast(Component.translatable("neocomputers.tunnel.channel", itemStack.get(DataComponents.TUNNEL_CHANNEL) ?: "creative"))
+            // TODO: show max packet size and whatnot
+        }
+        super.appendHoverText(itemStack, tooltipContext, list, tooltipFlag)
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/network/DeviceNode.kt

@@ -0,0 +1,256 @@
+package org.neoflock.neocomputers.network
+
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.server.level.ServerPlayer
+import net.minecraft.world.level.Level
+import net.minecraft.world.phys.Vec3
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.network.Networking.Message
+import org.neoflock.neocomputers.network.Networking.Visibility
+import org.neoflock.neocomputers.network.Networking.maxHopCount
+import java.util.UUID
+import kotlin.math.min
+
+// tmp class until JNI bindings work
+data class NNComponent(val type: String)
+
+open class DeviceNode(_address: UUID? = null) {
+    val connections = HashSet<DeviceNode>()
+    private var reachableCache: Set<DeviceNode>? = null
+    var address = _address ?: UUID.randomUUID()
+
+    open var reachability = Visibility.NETWORK
+    open var powerRole = PowerRole.CONSUMER
+    open var energy: Long = 0
+    open var energyCapacity: Long = 0
+    // give energy, returns how much was actually given
+    // cannot exceed amount specified
+    open fun giveEnergy(amount: Long): Long {
+        val maximum = min(amount, energyCapacity - energy)
+        energy += maximum
+        markChanged()
+        return maximum
+    }
+    // take energy out, returns how much was actually taken
+    // cannot exceed amount specified
+    open fun withdrawEnergy(amount: Long): Long {
+        val maximum = min(amount, energy)
+        energy -= maximum
+        markChanged()
+        return maximum
+    }
+
+    fun getChargerNodes(): Set<DeviceNode> = getReachable().filter { it.powerRole != PowerRole.CONSUMER }.toSet()
+    fun totalEnergyInConnections(): Long = getChargerNodes().fold(0) { acc, node -> acc + node.energy }
+    fun maxEnergyInConnections(): Long = getChargerNodes().fold(0) { acc, node -> acc + node.energyCapacity }
+
+    // attempts to consume
+    fun consumeEnergy(energy: Long): Boolean {
+        // consumes energy, returns false if not enough
+        val total = totalEnergyInConnections() + this.energy
+        if(energy > total) return false
+
+        var remaining = energy
+        remaining -= withdrawEnergy(remaining)
+        if(remaining <= 0) return true
+
+        for (charger in getChargerNodes()) {
+            if(remaining <= 0) break
+            remaining -= charger.withdrawEnergy(remaining)
+        }
+
+        return true
+    }
+
+    // PLEASE only call if consumer, in the name of all that is holy
+    fun tryToChargeFully() {
+        var remaining = energyCapacity - energy
+        if(remaining <= 0) return
+        for (charger in getChargerNodes()) {
+            if(remaining <= 0) break
+            val amount = charger.withdrawEnergy(remaining)
+            val given = giveEnergy(amount)
+            remaining -= given
+            if(given < amount) {
+                val delta = amount - given // amount lost while given back
+                if(charger.giveEnergy(delta) < delta) {
+                    NeoComputers.LOGGER.warn("LOSING ENERGY! Tried giving $delta back to $charger and we're losing our marbles!")
+                }
+            }
+        }
+    }
+
+    // only call if storage
+    fun balanceStorage() {
+        for(battery in getReachable()) {
+            if(battery.powerRole != PowerRole.STORAGE) continue
+            // its so if for example we have a battery with 2x the capacity
+            // we don't try to even the energy between them since that's just bad
+            // and might pointless delete energy over time
+            val capacityRatio = energyCapacity.toDouble() / battery.energyCapacity
+
+            val meaningfulSurplus = (battery.energy * capacityRatio - energy).toLong()
+
+            if(meaningfulSurplus <= 0) {
+                // WE'RE greedy (or negligible surplus)? Do nothing
+                continue
+            }
+
+            // steal from this greedy mf
+            val toSteal = meaningfulSurplus / 2
+            if(toSteal == 0L) continue // broke storahh
+
+            val stolen = battery.withdrawEnergy(toSteal)
+            if(giveEnergy(stolen) < stolen) {
+                NeoComputers.LOGGER.warn("LOSING ENERGY IN NODE $address!!!! THIS IS REALLY BAD!!!")
+            }
+        }
+    }
+
+    // rob the generators
+    fun stealGeneratorPower() {
+        var remaining = energyCapacity - energy
+
+        for(generator in getReachable()) {
+            if(generator.powerRole != PowerRole.GENERATOR) continue
+            // rob this mf
+            val robbed = generator.withdrawEnergy(remaining)
+            val taken = giveEnergy(robbed)
+            if(taken < robbed) {
+                NeoComputers.LOGGER.warn("energy caught being DELETED in the big 26")
+            }
+            remaining -= taken
+        }
+    }
+
+    open fun tick() {
+        if(powerRole == PowerRole.CONSUMER) tryToChargeFully()
+        if(powerRole == PowerRole.STORAGE) {
+            stealGeneratorPower()
+            balanceStorage()
+        }
+    }
+    // processes a received message
+    open fun received(message: Message) {}
+
+    // called when a new direct connection is made
+    open fun onConnect(deviceNode: DeviceNode) {}
+    // called when a direct connection is lost
+    open fun onDisconnect(deviceNode: DeviceNode) {}
+
+    // called when a new node is added globally
+    open fun onNodeAdded(deviceNode: DeviceNode) {
+        invalidateReachableCache()
+    }
+
+    // called when a node is removed globally
+    open fun onNodeRemoved(deviceNode: DeviceNode) {
+        invalidateReachableCache()
+    }
+
+    fun getReachable(): Set<DeviceNode> {
+        if(reachableCache == null) {
+            reachableCache = computeReachable()
+        }
+        return reachableCache!!
+    }
+
+    open fun invalidateReachableCache() {
+        reachableCache = null
+    }
+
+    // Returns a subset of connections, for a subset of direct
+    // meant for things like drives which dont want to accidentally fuse networks
+    open fun getPreferredFew() = setOf<DeviceNode>()
+
+    fun computeReachable(): Set<DeviceNode> {
+        if(reachability == Visibility.NONE) {
+            return setOf()
+        }
+        if(reachability == Visibility.SOME) {
+            return getPreferredFew()
+        }
+        if(reachability == Visibility.NETWORK) {
+            // absolute cinema
+            val working = HashSet<DeviceNode>()
+            val pending = mutableListOf(this)
+            var iterCount = 0
+            while(iterCount < maxHopCount && pending.isNotEmpty()) {
+                iterCount++
+                val subnode = pending.removeFirst()
+                if(subnode in working) continue
+                working.add(subnode)
+                if(subnode.reachability == Visibility.NETWORK) {
+                    pending.addAll(subnode.connections)
+                } else if(subnode.reachability == Visibility.SOME) {
+                    pending.addAll(subnode.getPreferredFew())
+                }
+            }
+            // cannot send to itself!
+            working.remove(this)
+            return working
+        }
+        throw NotImplementedError("visibility not implemented")
+    }
+
+    fun connectTo(other: DeviceNode) {
+        this.directConnectTo(other)
+        other.directConnectTo(this)
+    }
+
+    fun disconnectFrom(other: DeviceNode) {
+        this.directDisconnectFrom(other)
+        other.directDisconnectFrom(this)
+    }
+
+    fun directConnectTo(other: DeviceNode) {
+        if(other == this) return
+        if(other in connections) return
+        connections.add(other)
+        this.onConnect(other)
+        invalidateReachableCache()
+    }
+
+    fun directDisconnectFrom(other: DeviceNode) {
+        if(other !in connections) return
+        connections.remove(other)
+        this.onDisconnect(other)
+        invalidateReachableCache()
+    }
+
+    // Network synchronization with the NodeSynchronizer
+    // TODO: process shi
+
+    var outOfSync = false
+    fun markChanged() {
+        outOfSync = true
+    }
+
+    open fun encodeScreenData(player: ServerPlayer, buf: FriendlyByteBuf) {}
+    open fun processScreenInteraction(player: ServerPlayer, buf: FriendlyByteBuf) {}
+
+    // Meant to write the entire state as a single commit
+    // for clients which say they have no fucking idea what the server is storing
+    open fun writeFullStateCommit(buf: FriendlyByteBuf) {}
+
+    // client-side, meant to bring state forward
+    open fun processCommit(buf: FriendlyByteBuf) {}
+
+    open fun getComponent(): NNComponent? = null
+}
+
+// Used by the relay
+// If the ComponentItem in the card slot
+interface ConventionalNetworkDevice {
+    fun sendClassicPacket(packet: Networking.ClassicPacket)
+}
+
+abstract class WirelessEndpoint(address: UUID?) : DeviceNode(address) {
+
+    abstract fun getEndpointRange(): Double
+    abstract fun getEndpointDimension(): Int
+    abstract fun getEndpointLevel(): Level
+    abstract fun getEndpointPosition(): Vec3
+    // separate from process for simplicity
+    abstract fun receiveWireless(message: Message, emitter: WirelessEndpoint)
+}

src/main/kotlin/org/neoflock/neocomputers/network/Networking.kt

@@ -0,0 +1,161 @@
+package org.neoflock.neocomputers.network
+
+import net.minecraft.core.BlockPos
+import net.minecraft.world.level.Level
+import org.neoflock.neocomputers.entity.MachineEvent
+import java.util.UUID
+import kotlin.math.min
+import kotlin.math.pow
+import kotlin.math.sqrt
+
+enum class PowerRole {
+    // consumes energy, wants to be fully charged
+    // does not give energy to network nodes
+    CONSUMER,
+    // stores energy, will not care to charge itself
+    // will happily give energy to network nodes
+    STORAGE,
+    // only produces energy, thus obviously charges itself
+    // also happily gives energy
+    GENERATOR,
+}
+
+object Networking {
+    // maximum amount of hops between nodes
+    var maxHopCount = 32
+    var tickCount = 0
+
+    enum class Visibility {
+        // only it can see itself
+        NONE,
+        // some, as determined by getPreferredFew()
+        SOME,
+        // Can see everything network-wide
+        NETWORK,
+    }
+
+
+    abstract class Message(val sender: DeviceNode)
+
+    // null dst means broadcast
+    class ClassicPacket(sender: DeviceNode, val src: String, val dst: String?, val port: Int, val data: List<Any>, val hopCount: Int) : Message(sender) {
+        fun hop(sender: DeviceNode) = ClassicPacket(sender, src, dst, port, data, hopCount + 1);
+    }
+
+    // for plugins and shi
+    class ComputerCheckedSignal(sender: DeviceNode, val player: String?, val name: String, val data: Array<Any>): Message(sender)
+    class ComputerUncheckedSignal(sender: DeviceNode, val name: String, val data: Array<Any>): Message(sender)
+    class ComputerEvent(sender: DeviceNode, val machineEvent: MachineEvent): Message(sender)
+
+    val wirelessNodes = ThreadLocal.withInitial { HashSet<WirelessEndpoint>() }
+    val allNodes = ThreadLocal.withInitial { HashMap<UUID, DeviceNode>() }
+
+    // node may differ from message.sender in the case of relays,
+    // as they might have DIRECT reachability but
+    fun emitMessage(deviceNode: DeviceNode, message: Message, exclude: Set<DeviceNode> = setOf()) {
+        deviceNode.getReachable().forEach { if(it !in exclude) it.received(message) }
+    }
+
+    fun computeRangeAllowedByHardness(level: Level, src: BlockPos, dst: BlockPos): Double {
+        return Double.POSITIVE_INFINITY // TODO: math
+    }
+
+    fun emitWirelessMessage(starter: WirelessEndpoint, range: Double, message: Message) {
+        val startPos = starter.getEndpointPosition()
+        val startDim = starter.getEndpointDimension()
+        val level = starter.getEndpointLevel()
+        wirelessNodes.get().forEach {
+            if(it.getEndpointDimension() != startDim) return
+            val pos = it.getEndpointPosition()
+            val d = startPos.distanceTo(pos)
+            var trueRange = min(it.getEndpointRange(), range)
+            trueRange = min(trueRange, computeRangeAllowedByHardness(level, BlockPos.containing(startPos), BlockPos.containing(pos)))
+            if(d > trueRange) return
+            it.receiveWireless(message, starter)
+        }
+    }
+
+    fun tickAllNodes() {
+        allNodes.get().forEach { it.value.tick() }
+        tickCount++
+    }
+
+    fun getNode(address: UUID): DeviceNode? = allNodes.get()[address]
+
+    // TODO: use setter, more convenient
+    fun changeNodeAddress(deviceNode: DeviceNode, address: UUID): Boolean {
+        if(deviceNode.address.equals(address)) return false
+        if(deviceNode.address !in allNodes.get()) return false
+        if(address in allNodes.get()) return false
+        allNodes.get().remove(deviceNode.address)
+        deviceNode.address = address
+        allNodes.get()[address] = deviceNode
+        return true
+    }
+
+    fun addNode(deviceNode: DeviceNode) {
+        if(deviceNode.address in allNodes.get()) return
+        allNodes.get()[deviceNode.address] = deviceNode
+        if(deviceNode is WirelessEndpoint) {
+            wirelessNodes.get().add(deviceNode);
+        }
+        // notify at the end so it is notified of its own creation
+        allNodes.get().forEach { it.value.onNodeAdded(deviceNode) }
+    }
+
+    fun addNodes(deviceNodes: Iterable<DeviceNode>) {
+        deviceNodes.forEach { addNode(it) }
+    }
+
+    fun addNodes(vararg deviceNodes: DeviceNode) {
+        addNodes(deviceNodes.asIterable())
+    }
+
+    fun removeNode(deviceNode: DeviceNode) {
+        if(deviceNode.address !in allNodes.get()) return
+        NodeSynchronizer.nodeErased(deviceNode)
+        allNodes.get().forEach { it.value.onNodeRemoved(deviceNode) }
+        // toList() in order to copy it
+        deviceNode.connections.toList().forEach {
+            deviceNode.disconnectFrom(it)
+        }
+        // actually remove at the end so it can listen to its own removal
+        allNodes.get().remove(deviceNode.address)
+        if(deviceNode is WirelessEndpoint) {
+            wirelessNodes.get().remove(deviceNode);
+        }
+    }
+
+    fun removeNodes(deviceNodes: Iterable<DeviceNode>) {
+        deviceNodes.forEach { removeNode(it) }
+    }
+
+    fun removeNodes(vararg deviceNodes: DeviceNode) {
+        removeNodes(deviceNodes.asIterable())
+    }
+
+    val channels = ThreadLocal.withInitial { HashMap<String, MutableSet<DeviceNode>>() }
+
+    fun addToChannel(channel: String, deviceNode: DeviceNode) {
+        val localChannels = channels.get()
+        if(!localChannels.containsKey(channel)) {
+            localChannels[channel] = mutableSetOf();
+        }
+        localChannels[channel]!!.add(deviceNode);
+    }
+
+    fun removeFromChannel(channel: String, deviceNode: DeviceNode) {
+        val localChannels = channels.get()
+        if(!localChannels.containsKey(channel)) return;
+        localChannels[channel]?.remove(deviceNode);
+        if(localChannels[channel].isNullOrEmpty()) {
+            localChannels.remove(channel);
+        }
+    }
+
+    fun emitChannelMessage(starter: DeviceNode, channel: String, message: Message) {
+        val localChannels = channels.get()
+        val c = localChannels[channel] ?: return;
+        c.forEach { if(it != starter) it.received(message); };
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/network/NodeSynchronizer.kt

@@ -0,0 +1,171 @@
+package org.neoflock.neocomputers.network
+
+import dev.architectury.networking.NetworkManager
+import io.netty.buffer.Unpooled
+import net.minecraft.core.BlockPos
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.network.RegistryFriendlyByteBuf
+import net.minecraft.network.codec.StreamCodec
+import net.minecraft.network.protocol.common.custom.CustomPacketPayload
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.server.level.ServerLevel
+import net.minecraft.server.level.ServerPlayer
+import net.minecraft.world.level.Level
+import org.neoflock.neocomputers.NeoComputers
+import java.time.Duration
+
+object NodeSynchronizer {
+    val MAX_STATE_DISTANCE_ALLOWED = 128
+
+    class DeviceBlockStatePayload(var blockPos: BlockPos, var buffers: List<FriendlyByteBuf>): CustomPacketPayload {
+        companion object {
+            val BLOCKDEV_SYNC_ID = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "blockdev_sync")
+            val TYPE = CustomPacketPayload.Type<DeviceBlockStatePayload>(BLOCKDEV_SYNC_ID)
+            val CODEC = object : StreamCodec<RegistryFriendlyByteBuf, DeviceBlockStatePayload> {
+                override fun decode(buf: RegistryFriendlyByteBuf): DeviceBlockStatePayload {
+                    val blockPos = buf.readBlockPos()
+                    val bufferCount = buf.readVarInt()
+                    val buffers = List(bufferCount) {
+                        val bytes = buf.readByteArray()
+                        val rawBuf = Unpooled.buffer(bytes.size)
+                        rawBuf.writeBytes(bytes)
+                        FriendlyByteBuf(rawBuf)
+                    }
+                    return DeviceBlockStatePayload(blockPos, buffers)
+                }
+
+                override fun encode(buf: RegistryFriendlyByteBuf, payload: DeviceBlockStatePayload) {
+                    buf.writeBlockPos(payload.blockPos)
+                    buf.writeVarInt(payload.buffers.size)
+                    payload.buffers.forEach {
+                        buf.writeByteArray(it.array())
+                    }
+                }
+            }
+        }
+
+        override fun type() = TYPE
+    }
+
+    class DeviceBlockStateRequest(var blockPos: BlockPos): CustomPacketPayload {
+        companion object {
+            val BLOCKDEV_REQ_ID = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "blockdev_statereq")
+            val TYPE = CustomPacketPayload.Type<DeviceBlockStateRequest>(BLOCKDEV_REQ_ID)
+            val CODEC = object : StreamCodec<RegistryFriendlyByteBuf, DeviceBlockStateRequest> {
+                override fun decode(buf: RegistryFriendlyByteBuf): DeviceBlockStateRequest {
+                    val blockPos = buf.readBlockPos()
+                    return DeviceBlockStateRequest(blockPos)
+                }
+
+                override fun encode(buf: RegistryFriendlyByteBuf, payload: DeviceBlockStateRequest) {
+                    buf.writeBlockPos(payload.blockPos)
+                }
+            }
+        }
+
+        override fun type() = TYPE
+    }
+
+    class ScreenPayload(var buffer: FriendlyByteBuf): CustomPacketPayload {
+        companion object {
+            val SCREEN_SYNC_ID = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "screen_sync")
+            val TYPE = CustomPacketPayload.Type<ScreenPayload>(SCREEN_SYNC_ID)
+            val CODEC = object : StreamCodec<RegistryFriendlyByteBuf, ScreenPayload> {
+                override fun decode(buf: RegistryFriendlyByteBuf): ScreenPayload {
+                    val buffer = FriendlyByteBuf(buf.copy(buf.readerIndex(), buf.readableBytes()))
+                    return ScreenPayload(buffer)
+                }
+
+                override fun encode(buf: RegistryFriendlyByteBuf, payload: ScreenPayload) {
+                    buf.writeBytes(payload.buffer)
+                }
+            }
+        }
+
+        override fun type() = TYPE
+    }
+
+    class ScreenDataPayload(var buffer: FriendlyByteBuf): CustomPacketPayload {
+        companion object {
+            val SCREEN_DATA_ID = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "screen_data")
+            val TYPE = CustomPacketPayload.Type<ScreenDataPayload>(SCREEN_DATA_ID)
+            val CODEC = object : StreamCodec<RegistryFriendlyByteBuf, ScreenDataPayload> {
+                override fun decode(buf: RegistryFriendlyByteBuf): ScreenDataPayload {
+                    val buffer = FriendlyByteBuf(buf.copy(buf.readerIndex(), buf.readableBytes()))
+                    return ScreenDataPayload(buffer)
+                }
+
+                override fun encode(buf: RegistryFriendlyByteBuf, payload: ScreenDataPayload) {
+                    buf.writeBytes(payload.buffer)
+                }
+            }
+        }
+
+        override fun type() = TYPE
+    }
+
+    class BeepDataPayload(val pos: BlockPos, val pattern: String, val freq: Int, val duration: Duration, val volume: Double): CustomPacketPayload {
+        companion object {
+            val BEEP_DATA_ID = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "beep_data")
+            val TYPE = CustomPacketPayload.Type<BeepDataPayload>(BEEP_DATA_ID)
+            val CODEC = object : StreamCodec<RegistryFriendlyByteBuf, BeepDataPayload> {
+                override fun decode(buf: RegistryFriendlyByteBuf): BeepDataPayload {
+                    val pos = buf.readBlockPos()
+                    val pattern = buf.readUtf()
+                    val freq = buf.readVarInt()
+                    val duration = buf.readVarLong()
+                    val volume = buf.readDouble()
+                    return BeepDataPayload(pos, pattern, freq, Duration.ofMillis(duration), volume)
+                }
+
+                override fun encode(buf: RegistryFriendlyByteBuf, payload: BeepDataPayload) {
+                    buf.writeBlockPos(payload.pos)
+                    buf.writeUtf(payload.pattern)
+                    buf.writeVarInt(payload.freq)
+                    buf.writeVarLong(payload.duration.toMillis())
+                    buf.writeDouble(payload.volume)
+                }
+            }
+        }
+
+        override fun type() = TYPE
+    }
+
+    val screenMap = HashMap<ServerPlayer, DeviceNode>()
+
+    fun playerScreenClosed(player: ServerPlayer) {
+        screenMap.remove(player)
+    }
+
+    fun registerPlayerScreen(player: ServerPlayer, devNode: DeviceNode) {
+        screenMap[player] = devNode
+    }
+
+    fun nodeErased(node: DeviceNode) {
+        var player: ServerPlayer? = null
+        for((p, n) in screenMap) {
+            if(n == node) player = p
+        }
+        if(player != null) screenMap.remove(player)
+    }
+
+    fun syncScreens() {
+        for((player, ent) in screenMap) {
+            val buf = FriendlyByteBuf(Unpooled.buffer())
+            ent.encodeScreenData(player, buf)
+            NetworkManager.sendToPlayer(player, ScreenPayload(buf))
+        }
+    }
+
+    fun sendScreenInteraction(friendlyByteBuf: FriendlyByteBuf) {
+        NetworkManager.sendToServer(ScreenDataPayload(friendlyByteBuf))
+    }
+
+    fun emitBeep(level: Level, beepDataPayload: BeepDataPayload) {
+        if(level is ServerLevel) {
+            level.players().forEach {
+                NetworkManager.sendToPlayer(it, beepDataPayload)
+            }
+        }
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/network/PowerManager.kt

@@ -0,0 +1,46 @@
+package org.neoflock.neocomputers.network
+
+import net.minecraft.world.level.block.entity.BlockEntityType
+import org.neoflock.neocomputers.block.DeviceBlockEntity
+//? if fabric {
+import net.fabricmc.fabric.api.transfer.v1.transaction.TransactionContext
+import net.minecraft.core.Direction
+import team.reborn.energy.api.EnergyStorage;
+//?}
+
+// our soul purpose is to fuse bullshit power APIs together
+// the NodeBlockEntity and Node given us a way to get power from a block, we just
+// need to tell mods how to do it as well
+object PowerManager {
+    fun<T: DeviceBlockEntity> registerPowerDevice(blockEntityType: BlockEntityType<T>) {
+        //? if fabric {
+        EnergyStorage.SIDED.registerForBlockEntity({
+                // TODO: as this is currently written, if the node instance changes and the mod cached the conversion, we're boned. Consider fixing it.
+                entity, dir ->
+                val node = entity.getNodeFromSide(dir ?: Direction.UP)
+                if(node == null) null else object : EnergyStorage {
+                    override fun getAmount() = node.energy
+                    override fun getCapacity() = node.energyCapacity
+                    override fun supportsExtraction() = node.powerRole != PowerRole.CONSUMER && node.energyCapacity > 0
+                    override fun supportsInsertion() = node.powerRole != PowerRole.GENERATOR
+                    override fun extract(maxAmount: Long, transaction: TransactionContext?): Long {
+                        if(node.powerRole == PowerRole.CONSUMER) return 0
+                        val taken = node.withdrawEnergy(maxAmount)
+                        transaction?.addCloseCallback {
+                                ctx, res -> if(res.wasAborted() || !res.wasCommitted()) node.giveEnergy(taken)
+                        }
+                        return taken
+                    }
+                    override fun insert(maxAmount: Long, transaction: TransactionContext?): Long {
+                        if(node.powerRole == PowerRole.GENERATOR) return 0
+                        val given = node.giveEnergy(maxAmount)
+                        transaction?.addCloseCallback { ctx, res ->
+                            if (res.wasAborted() || !res.wasCommitted()) node.withdrawEnergy(given)
+                        }
+                        return given
+                    }
+                }
+        }, blockEntityType);
+        //?}
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/sounds/LoopingSoundInstance.kt

@@ -0,0 +1,37 @@
+package org.neoflock.neocomputers.sounds
+
+import net.minecraft.client.resources.sounds.AbstractTickableSoundInstance
+import net.minecraft.client.resources.sounds.EntityBoundSoundInstance
+import net.minecraft.client.resources.sounds.MinecartSoundInstance
+import net.minecraft.client.resources.sounds.SoundInstance
+import net.minecraft.sounds.SoundEvent
+import net.minecraft.sounds.SoundSource
+import org.neoflock.neocomputers.entity.MachineEntity
+
+class ComputerRunningSoundInstance: AbstractTickableSoundInstance {
+    val machine: MachineEntity
+
+    fun updatePosition() {
+        val pos = machine.getMachineBlockPosition()
+        this.x = pos.x.toDouble() + 0.5
+        this.y = pos.y.toDouble() + 0.5
+        this.z = pos.z.toDouble() + 0.5
+    }
+
+    constructor(machine: MachineEntity, soundEvent: SoundEvent, soundSource: SoundSource): super(soundEvent, soundSource, SoundInstance.createUnseededRandom()) {
+        this.machine = machine
+        this.looping = true
+        this.delay = 0
+        this.volume = 1.0F
+        this.pitch = 1.0F
+        updatePosition()
+    }
+
+    override fun tick() {
+        if(!machine.isRunning()) {
+            this.stop()
+        } else {
+            updatePosition()
+        }
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/sounds/Sounds.kt

@@ -0,0 +1,163 @@
+package org.neoflock.neocomputers.sounds
+
+import dev.architectury.registry.registries.DeferredRegister
+import net.minecraft.client.Minecraft
+import net.minecraft.core.registries.Registries
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.sounds.SoundEvent
+import net.minecraft.world.phys.Vec3
+import org.lwjgl.BufferUtils
+import org.neoflock.neocomputers.NeoComputers
+import org.lwjgl.openal.AL10
+import java.nio.ByteBuffer
+import kotlin.experimental.xor
+import kotlin.math.PI
+import kotlin.math.max
+import kotlin.math.sign
+import kotlin.math.sin
+
+object Sounds {
+    val SOUNDS = DeferredRegister.create(NeoComputers.MODID, Registries.SOUND_EVENT)!!
+
+    val COMPUTER_RUNNING = registerSound("computer_running")
+
+    fun registerSound(name: String) = SOUNDS.register(name) {
+        SoundEvent.createVariableRangeEvent(ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, name))
+    }!!
+
+    val BEEP_SAMPLERATE = 44100
+    val BEEP_AMPLITUDE = 32f
+    val BEEP_MAXDIST = 16f
+
+    // Also largely taken from https://github.com/MightyPirates/OpenComputers/blob/571482db88080d56329e8f8cf0db2a90825bf1d7/src/main/scala/li/cil/oc/util/Audio.scala
+
+    val allSounds = ThreadLocal.withInitial { mutableListOf<CustomSoundBuffer>() }
+
+    class CustomSoundBuffer {
+        var dead: Boolean = true
+        var buffer: Int = -1
+        var source: Int = -1
+
+        fun start(x: Float, y: Float, z: Float, data: ByteBuffer, gain: Float): Int? {
+            // clear errors or smth idk
+            AL10.alGetError()
+
+            // written in a C style by a C dev
+            // all this work on a JVM project and I'm still writing C
+            // would be better if Kotlin had goto btw just saying
+            val ok = AL10.AL_NO_ERROR
+            var err = ok
+            buffer = AL10.alGenBuffers()
+            err = AL10.alGetError()
+            if(err != ok) return err
+
+            AL10.alBufferData(buffer, AL10.AL_FORMAT_MONO8, data, BEEP_SAMPLERATE)
+            err = AL10.alGetError()
+            if(err != ok) {
+                AL10.alDeleteBuffers(buffer)
+                return err
+            }
+
+            source = AL10.alGenSources()
+            err = AL10.alGetError()
+            if(err != ok) {
+                AL10.alDeleteBuffers(buffer)
+                return err
+            }
+
+            AL10.alSourceQueueBuffers(source, buffer)
+            err = AL10.alGetError()
+            if(err != ok) {
+                AL10.alDeleteBuffers(buffer)
+                AL10.alDeleteSources(source)
+                return err
+            }
+
+            AL10.alSource3f(source, AL10.AL_POSITION, x, y, z)
+            AL10.alSourcef(source, AL10.AL_REFERENCE_DISTANCE, BEEP_MAXDIST)
+            AL10.alSourcef(source, AL10.AL_MAX_DISTANCE, BEEP_MAXDIST)
+            AL10.alSourcef(source, AL10.AL_GAIN, gain * 0.3f)
+            err = AL10.alGetError()
+            if(err != ok) {
+                AL10.alDeleteBuffers(buffer)
+                AL10.alDeleteSources(source)
+                return err
+            }
+
+            AL10.alSourcePlay(source)
+            err = AL10.alGetError()
+            if(err != ok) {
+                AL10.alDeleteBuffers(buffer)
+                AL10.alDeleteSources(source)
+                return err
+            }
+
+            dead = false
+            return null
+        }
+
+        fun checkDone(): Boolean {
+            if(dead) return true
+            if(AL10.alGetSourcei(source, AL10.AL_SOURCE_STATE) == AL10.AL_PLAYING) return false
+            dead = true
+            AL10.alDeleteSources(source)
+            AL10.alDeleteBuffers(buffer)
+            return true
+        }
+    }
+
+    fun beep(pos: Vec3, pattern: String, frequency: Int = 1000, duration: Int = 200) {
+        NeoComputers.LOGGER.info("Beep: $pattern, $frequency Hz, $duration ms")
+        val mc = Minecraft.getInstance()
+        val playerPos = mc.player?.position() ?: pos
+        val distanceBasedGain = max(0.0, 1 - pos.distanceTo(playerPos) / BEEP_MAXDIST).toFloat()
+        val volume = 1.0
+        val gain = distanceBasedGain * volume
+        if (gain <= 0 || BEEP_AMPLITUDE <= 0) return
+
+        // Algorithm effectively ported over from https://github.com/MightyPirates/OpenComputers/blob/571482db88080d56329e8f8cf0db2a90825bf1d7/src/main/scala/li/cil/oc/util/Audio.scala
+        // We do add support for spaces tho
+        val charArr = pattern.toCharArray()
+        val sampleCounts = charArr.map { if(it == '.') duration else 2 * duration }.map { it * BEEP_SAMPLERATE / 1000 }
+        val pauseSample = 50 * BEEP_SAMPLERATE / 1000
+
+        val finalBuf = BufferUtils.createByteBuffer(sampleCounts.sum() + pauseSample * sampleCounts.lastIndex)
+        val step = frequency.toFloat() / BEEP_SAMPLERATE
+        var off = 0f
+        for((i, sampleCount) in sampleCounts.withIndex()) {
+            if(charArr[i] == ' ') {
+                for(sample in 0..<sampleCount) {
+                    finalBuf.put(127)
+                }
+            } else {
+                for(sample in 0..<sampleCount) {
+                    val angle = 2 * PI * off
+                    val value = (sin(angle).sign * BEEP_AMPLITUDE).toInt().toByte().xor(0x80.toByte())
+                    off += step
+                    if(off > 1) off -= 1f
+                    finalBuf.put(value)
+                }
+            }
+            if(finalBuf.hasRemaining()) {
+                for(sample in 0..<pauseSample) {
+                    finalBuf.put(127)
+                }
+            }
+        }
+        finalBuf.rewind()
+
+        val sound = CustomSoundBuffer()
+        val soundErr = sound.start(pos.x.toFloat(), pos.y.toFloat(), pos.z.toFloat(), finalBuf, gain.toFloat())
+        if(soundErr != null) {
+            NeoComputers.LOGGER.error("Playing beep failed, OpenAL exit code of $soundErr")
+            return
+        }
+
+        NeoComputers.LOGGER.info("Beeping with ${finalBuf.capacity()} samples")
+        allSounds.get().addLast(sound)
+    }
+
+    fun tickCustomSounds() {
+        allSounds.get().removeIf { it.checkDone() }
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/utils/ContainerUtils.kt

@@ -0,0 +1,16 @@
+package org.neoflock.neocomputers.utils
+
+import dev.architectury.registry.fuel.FuelRegistry
+import net.minecraft.world.inventory.AbstractContainerMenu
+import net.minecraft.world.item.ItemStack
+
+// mewhenthe, aka e, will have me publicly executed for this code
+object ContainerUtils {
+    fun getBurningTime(itemStack: ItemStack): Int? {
+        val time = FuelRegistry.get(itemStack)
+        if(time == 0) return null
+        return time
+    }
+
+    fun isBurningFuel(itemStack: ItemStack) = getBurningTime(itemStack) != null
+}

src/main/kotlin/org/neoflock/neocomputers/utils/FontProvider.kt

@@ -0,0 +1,33 @@
+package org.neoflock.neocomputers.utils;
+
+import net.minecraft.client.Minecraft
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.server.packs.resources.Resource
+import net.minecraft.server.packs.resources.ResourceManager
+import org.neoflock.neocomputers.NeoComputers
+import java.nio.charset.StandardCharsets
+
+/*
+* OC hex font format:
+* 5 character hex code .. ":" .. variable length hex code .. LF
+* this is essentially a dictionary
+* */
+object FontProvider {
+    val map: MutableMap<Char, ArrayList<Byte>> = mutableMapOf();
+
+    fun load(loc: ResourceLocation) {
+        var man: ResourceManager = Minecraft.getInstance().resourceManager
+        var resource: Resource = man.getResourceOrThrow(loc)
+        var stream = resource.open()
+        var bfr = stream.bufferedReader();
+        while (stream.available() > 0) {
+            var line: String = bfr.readLine()
+            var splitLine = line.split(":");
+            var key = splitLine[0].hexToInt().toChar();
+            var value: ByteArray = splitLine[1].hexToByteArray(); // shout out to the kotlin stdlib for having ts
+            var bytes: ArrayList<Byte> = value.toCollection(ArrayList<Byte>());
+            map[key] = bytes
+        }
+        NeoComputers.LOGGER.info("[FontProvider] Loaded font!");
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/utils/Formatting.kt

@@ -0,0 +1,15 @@
+package org.neoflock.neocomputers.utils
+
+object Formatting {
+    fun formatMemory(size: Long, spacing: String = " "): String {
+        var unit = 0
+        val units = listOf("B", "KiB", "MiB", "GiB", "TiB", "PiB")
+        var num = size.toDouble()
+        while(unit < units.lastIndex && num >= 1024) {
+            num /= 1024
+            unit++
+        }
+        num = (num * 100).toInt().toDouble() / 100
+        return "$num$spacing${units[unit]}"
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/utils/GenericContainer.kt

@@ -0,0 +1,203 @@
+package org.neoflock.neocomputers.utils
+
+// based off the ImplementedContainer of https://docs.fabricmc.net/develop/blocks/block-containers
+import com.mojang.blaze3d.vertex.DefaultVertexFormat
+import com.mojang.blaze3d.vertex.VertexFormat
+import dev.architectury.registry.menu.MenuRegistry
+import net.minecraft.client.gui.GuiGraphics
+import net.minecraft.client.gui.components.AbstractWidget
+import net.minecraft.client.gui.components.events.GuiEventListener
+import net.minecraft.client.gui.screens.inventory.AbstractContainerScreen
+import net.minecraft.client.renderer.RenderStateShard
+import net.minecraft.client.renderer.RenderStateShard.ShaderStateShard
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.world.Container;
+import net.minecraft.core.NonNullList;
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.network.RegistryFriendlyByteBuf
+import net.minecraft.network.chat.Component
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.server.packs.resources.Resource
+import net.minecraft.world.ContainerHelper
+import net.minecraft.world.entity.player.Inventory
+import net.minecraft.world.entity.player.Player
+import net.minecraft.world.inventory.AbstractContainerMenu
+import net.minecraft.world.inventory.MenuType
+import net.minecraft.world.inventory.Slot
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.level.block.entity.BlockEntityType
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.gui.widget.DynamicSlot
+
+// Common container interface, assumes the entire purpose is purely raw item storage
+interface GenericContainer : Container {
+    fun getItems(): NonNullList<ItemStack>
+
+    override fun getContainerSize(): Int {
+        return getItems().size
+    }
+
+    override fun isEmpty(): Boolean {
+        return getItems().all { it.isEmpty }
+    }
+
+    override fun getItem(i: Int): ItemStack {
+        return getItems()[i]
+    }
+
+    override fun removeItem(slot: Int, count: Int): ItemStack {
+        val res = ContainerHelper.removeItem(getItems(), slot, count)
+        if (!res.isEmpty) setChanged()
+        return res
+    }
+
+    override fun setItem(slot: Int, itemStack: ItemStack) {
+        getItems()[slot] = itemStack
+
+        // in case of bullshit
+        if(itemStack.count > itemStack.maxStackSize) {
+            // rip items
+            itemStack.count = itemStack.maxStackSize
+        }
+    }
+
+    override fun removeItemNoUpdate(i: Int): ItemStack {
+        return ContainerHelper.takeItem(getItems(), i)
+    }
+
+    override fun clearContent() {
+        getItems().clear()
+    }
+}
+
+abstract class GenericContainerMenu(menuType: MenuType<*>, id: Int, var container: Container): AbstractContainerMenu(menuType, id) {
+    fun addInventorySlots(inventory: Inventory, x: Int, y: Int) {
+        // Based off the code in ChestMenu
+        for (i in 0..2) {
+            for (j in 0..8) {
+                this.addSlot(Slot(inventory, j + i * 9 + 9, 8 + j * 18, y + i * 18))
+            }
+        }
+
+        addInventoryHotbar(inventory, x, y + 3 * 18 + 4)
+    }
+
+    fun addInventoryHotbar(inventory: Inventory, x: Int, y: Int) {
+        for (i in 0..8) {
+            this.addSlot(Slot(inventory, i, x + i * 18, y))
+        }
+    }
+
+    // taken from https://docs.fabricmc.net/develop/blocks/container-menus
+    override fun quickMoveStack(player: Player, i: Int): ItemStack? {
+        val slot = slots[i]
+
+        if(!slot.hasItem()) return ItemStack.EMPTY
+
+        val stack = slot.item
+        val copied = stack.copy()
+        val contSize = container.containerSize
+
+        if(i < contSize) {
+            if(!this.moveItemStackTo(stack, contSize, slots.size, true)) {
+                return ItemStack.EMPTY
+            }
+        } else if(!this.moveItemStackTo(stack, 0, contSize, false)) {
+            return ItemStack.EMPTY
+        }
+
+        if(stack.isEmpty) {
+            slot.setByPlayer(ItemStack.EMPTY)
+        } else {
+            slot.setChanged()
+        }
+
+        return copied
+    }
+
+    override fun stillValid(player: Player): Boolean {
+        return container.stillValid(player)
+    }
+}
+
+abstract class GenericContainerScreen<T: GenericContainerMenu>(menu: T, inventory: Inventory, component: Component): AbstractContainerScreen<T>(menu, inventory, component) {
+    open fun shouldCenterTitle() = true
+    open fun shouldRenderTooltip() = true
+    open fun findMenuTexture(): ResourceLocation = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/gui/background.png")
+
+    open fun getBoundBlockEntityType(): Set<BlockEntityType<*>> = setOf()
+
+    open fun processScreenStatePacket(buf: FriendlyByteBuf) {}
+
+    val imageX: Int
+        get() = (width - imageWidth) / 2
+
+    val imageY: Int
+        get() = (height - imageHeight) / 2
+
+    var widgets = mutableListOf<AbstractWidget>()
+
+    val RENDER_TYPE = { r: ResourceLocation ->
+        RenderType.create("nc_gui_bg", DefaultVertexFormat.POSITION_TEX, VertexFormat.Mode.QUADS, RenderType.TRANSIENT_BUFFER_SIZE, RenderType.CompositeState.builder()
+            .setShaderState(ShaderStateShard.POSITION_TEX_SHADER)
+            .setTextureState(RenderStateShard.TextureStateShard(r, false, false))
+            .createCompositeState(false))
+    }
+
+    override fun init() {
+        super.init()
+
+        if(shouldCenterTitle()) this.titleLabelX = (this.imageWidth - this.font.width(this.title)) / 2
+    }
+
+    override fun renderBg(guiGraphics: GuiGraphics, f: Float, i: Int, j: Int) {
+        val menuTex = findMenuTexture()
+        val cx = (width - imageWidth) / 2
+        val cy = (height - imageHeight) / 2
+        guiGraphics.pose().pushPose()
+        guiGraphics.pose().translate(cx.toFloat(), cy.toFloat(), 0f)
+
+        guiGraphics.blit(menuTex, 0, 0, 0, 0, imageWidth, imageHeight)
+        renderbg(guiGraphics, f, i-cx, j-cy)
+
+        for (widget in widgets) {
+            widget.render(guiGraphics, i-cx, j-cy, f)
+        }
+
+        for (slot in menu.slots) {
+            if (slot is DynamicSlot) {
+                slot.draw(guiGraphics, i-cx, j-cy)
+            }
+        }
+
+        guiGraphics.pose().popPose()
+    }
+
+    open fun renderbg(guiGraphics: GuiGraphics, partialTick: Float, mouseX: Int, mouseY: Int) {}
+
+    open fun renderCustomOverlay(graphics: GuiGraphics, mouseX: Int, mouseY: Int, blend: Float) { }
+
+    override fun render(graphics: GuiGraphics, mouseX: Int, mouseY: Int, something: Float) {
+        super.render(graphics, mouseX, mouseY, something)
+
+        graphics.pose().pushPose()
+        graphics.pose().translate(imageX.toFloat(), imageY.toFloat(), 0f)
+        renderCustomOverlay(graphics, mouseX-imageX, mouseY-imageY, something)
+        graphics.pose().popPose() // not even doing this because it's better anymore, im just doing this because i dont want to change it back
+
+        if(shouldRenderTooltip()) super.renderTooltip(graphics, mouseX, mouseY)
+    }
+
+    override fun mouseClicked(mouseX: Double, mouseY: Double, button: Int): Boolean {
+        super.mouseClicked(mouseX, mouseY, button)
+        for (widget in widgets) {
+            if (widget.mouseClicked(mouseX-imageX, mouseY-imageY, button)) return true
+        }
+
+        return false
+    }
+
+    fun addWidget(widget: AbstractWidget) {
+        widgets.add(widget)
+    }
+}

src/main/kotlin/org/neoflock/neocomputers/utils/TextBuffer.kt

@@ -0,0 +1,99 @@
+package org.neoflock.neocomputers.utils
+
+import net.minecraft.network.FriendlyByteBuf
+import kotlin.math.min
+
+data class GPUChar(val c: Char, val fg: Int =0xFFFFFF, val bg: Int = 0) // all is bgr
+
+// TODO: wrapper over NN buffer
+class TextBuffer(var width: Int, var height: Int) {
+    val blank = GPUChar(' ')
+    var buf = Array(width*height) { blank }
+
+    fun encodeContents(buf: FriendlyByteBuf) {
+        // 0x01 means set fg, 0x02 means set bg,
+        // 0x03 means set char+count
+        var lastFg = 0xFFFFFF
+        var lastBg = 0x000000
+
+        buf.writeVarInt(width)
+        buf.writeVarInt(height)
+
+        var i = 0
+        while(i < this.buf.size) {
+            val px = this.buf[i]
+            if(px.fg != lastFg) {
+                buf.writeByte(0x01)
+                buf.writeVarInt(px.fg)
+                lastFg = px.fg
+            }
+            if(px.bg != lastBg) {
+                buf.writeByte(0x02)
+                buf.writeVarInt(px.bg)
+                lastBg = px.bg
+            }
+            var charWritten = 1
+            while((i+charWritten) < this.buf.size && this.buf[i+charWritten].c == px.c) charWritten++
+            buf.writeByte(0x03)
+            buf.writeVarInt(px.c.code)
+            buf.writeVarInt(charWritten)
+            i += charWritten
+        }
+    }
+
+    fun decodeContents(buf: FriendlyByteBuf) {
+        var lastFg = 0xFFFFFF
+        var lastBg = 0x000000
+
+        width = buf.readVarInt()
+        height = buf.readVarInt()
+
+        if(width*height != this.buf.size) {
+            this.buf = Array(width * height) { blank }
+        }
+
+        var i = 0
+        while(i < width*height) {
+            val op = buf.readByte().toInt()
+            if(op == 0x01) {
+                lastFg = buf.readVarInt()
+            }
+            if(op == 0x02) {
+                lastBg = buf.readVarInt()
+            }
+            if(op == 0x03) {
+                val c = buf.readVarInt().toChar()
+                val n = buf.readVarInt()
+
+                for(o in 0..<n) {
+                    this.buf[i+o] = GPUChar(c, lastFg, lastBg)
+                }
+                i += n
+            }
+        }
+    }
+
+    fun inBounds(x: Int, y: Int) = x >= 0 && y >= 0 && x < width && y < height
+    fun get(x: Int, y: Int) = if(inBounds(x, y)) buf[x+y*width] else blank
+    fun set(x: Int, y: Int, pixel: GPUChar) {
+        if(!inBounds(x, y)) return
+        buf[x+y*width] = pixel
+    }
+    fun set(x: Int, y: Int, text: String, fg: Int = 0xFFFFFF, bg: Int = 0x000000, vertical: Boolean = false) {
+        for ((i, c) in text.toCharArray().withIndex()) {
+            val cx = if(vertical) x else x + i
+            val cy = if(vertical) y + i else y
+            set(cx, cy, GPUChar(c, fg, bg))
+        }
+    }
+    fun fill(x: Int, y: Int, w: Int, h: Int, pixel: GPUChar = blank) {
+        // turn it into values we can fw
+        val fw = min(w, width)
+        val fh = min(h, height)
+        for(py in y..<y+fh) {
+            for (px in x..<x + fw) {
+                set(px, py, pixel)
+            }
+        }
+    }
+}

src/main/resources/META-INF/mods.toml

@@ -1,7 +1,7 @@
 modLoader = "javafml"
 loaderVersion = "*"
 license = "LGPLv3"
-issueTrackerURL="https://github.com/NeoFlock/NeoComputers/issues"
+issueTrackerURL="https://gitea.codersquack.nl/NeoFlock/NeoComputers/issues"
 
 [[mods]]
 modId = "neocomputers"

src/main/resources/META-INF/neoforge.mods.toml

@@ -1,7 +1,7 @@
 modLoader = "javafml"
 loaderVersion = "*"
 license = "LGPLv3"
-issueTrackerURL="https://github.com/NeoFlock/NeoComputers/issues"
+issueTrackerURL="https://gitea.codersquack.nl/NeoFlock/NeoComputers/issues"
 
 [[mods]]
 modId = "neocomputers"

src/main/resources/assets/neocomputers/atlases/gui.json

@@ -0,0 +1,8 @@
+{
+  "sources": [
+    {
+      "type": "single",
+      "source": "neocomputers:block/relay_top"
+    }
+  ]
+}

src/main/resources/assets/neocomputers/blockstates/cable.json

@@ -0,0 +1,94 @@
+{
+    "multipart": [
+        { "apply":  { "model":  "neocomputers:block/cable/cable_center" }},
+        { "when":  { "south":  true },
+        "apply":  { "model":  "neocomputers:block/cable/cable_connection" }},
+        { "when":  { "east":  true},
+        "apply":  { "model":  "neocomputers:block/cable/cable_connection", "y": -90}},
+        { "when":  { "west":  true },
+        "apply":  { "model":  "neocomputers:block/cable/cable_connection", "y": 90}},
+        { "when":  { "north":  true },
+        "apply":  { "model":  "neocomputers:block/cable/cable_connection", "y": 180}},
+        { "when":  { "up":  true },
+        "apply":  { "model":  "neocomputers:block/cable/cable_connection", "x": 90}},
+        { "when":  { "down":  true },
+        "apply":  { "model":  "neocomputers:block/cable/cable_connection", "x": -90}},
+        {
+            "when": {
+                "south":  false,
+                "north":  false,
+                "east":  false,
+                "west":  false,
+                "up":  false,
+                "down":  false
+            },
+            "apply": { "model":  "neocomputers:block/cable/cable_caps" }
+        },
+        {
+            "when": {
+                "south":  true,
+                "north":  false,
+                "east":  false,
+                "west":  false,
+                "up":  false,
+                "down":  false
+            },
+            "apply": { "model":  "neocomputers:block/cable/cable_cap" }
+        },
+        {
+            "when": {
+                "south":  false,
+                "north":  true,
+                "east":  false,
+                "west":  false,
+                "up":  false,
+                "down":  false
+            },
+            "apply": { "model":  "neocomputers:block/cable/cable_cap", "y": 180 }
+        },
+        {
+            "when": {
+                "south":  false,
+                "north":  false,
+                "east":  true,
+                "west":  false,
+                "up":  false,
+                "down":  false
+            },
+            "apply": { "model":  "neocomputers:block/cable/cable_cap", "y": -90 }
+        },
+        {
+            "when": {
+                "south":  false,
+                "north":  false,
+                "east":  false,
+                "west":  true,
+                "up":  false,
+                "down":  false
+            },
+            "apply": { "model":  "neocomputers:block/cable/cable_cap", "y": 90 }
+        },
+        {
+            "when": {
+                "south":  false,
+                "north":  false,
+                "east":  false,
+                "west":  false,
+                "up":  true,
+                "down":  false
+            },
+            "apply": { "model":  "neocomputers:block/cable/cable_cap", "x": 90 }
+        },
+        {
+            "when": {
+                "south":  false,
+                "north":  false,
+                "east":  false,
+                "west":  false,
+                "up":  false,
+                "down":  true
+            },
+            "apply": { "model":  "neocomputers:block/cable/cable_cap", "x": -90 }
+        }
+    ]
+}