stuff

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

TODO.md

@@ -1,31 +1,21 @@
 # Networking
-> Pretty important here
+> All that is left is optimization
 
-## Auto-connect
+## Mergeable device nodes
 
-Rework the auto-connect system of device blocks to be more stable.
+For optimization of screen grouping and cables, we should add a system that allows merging nodes
-Prob re-scan the network continuously
 
-## Synchronization
+## 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
 
-Move the state logic into the node, as it was meant to be.
+We should implement this, as it not only makes behavior match better, but also optimizes
-Note, addresses on the client are allowed to be complete bullshit at least for a bit of time.
+it a lot. We do need to replace the NEIGHBORS rule with implementing the SOME visibility.
-`ComponentItem`s should no longer allow a node on the client (at least for now), it serves no
+A direct port is not needed, just taking heavy inspiration from OC.
-purpose currently, and also is not designed well.
 
-## Get rid of NodeBlockEntity
+## Optimize power balancing
 
-It is basically throw-away stitched together garbage.
+Use a smarter algorithm to prevent N storage nodes from iterating N^2 nodes each tick
-Replace it with a new abstract class, which allows different nodes on different sides,
+to balance power.
-handles synchronizing those nodes according to their state changes.
-
-Also implement an equivalent for LivingEntities, like drones or other addon stuff.
-
-## Optimizations
-
-Optimize the networking, both synchronization using smaller encodings,
-and emitting messages or adding/removing nodes. The goal is to have as little of
-the CPU time on the server thread taken by NC as we can.
 
 # Computation
 > Pretty important for a computer mod
@@ -38,3 +28,8 @@ Also because it is a capable engine and has a good API for architectures, and NC
 ## 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

@@ -26,9 +26,16 @@ base {
     archivesName.set("${mod.id}-$loader")
 }
 
+//val foid = ["forge", "fabric", "neoforge"]
+//architectury.common(foid)
+//architectury.common(["forge", "fabric"])
+//println(stonecutter.current.project.split('-').subList(1, 2))
+//architectury.common(stonecutter.current.project.split('-').subList(1, 2))
+//architectury.common(stonecutter.current.version)
 architectury.common(stonecutter.tree.branches.mapNotNull {
-    if (stonecutter.current.project !in it) null
+//    println(stonecutter.current.project !in it)
-    else it.prop("loom.platform")
+    if (stonecutter.current.project !in it) return null
+    else return it.prop("loom.platform")
 })
 
 repositories {
@@ -118,8 +125,8 @@ dependencies {
 //            }
 //        })
 
-        if (minecraft=="1.21.9" || minecraft=="1.21.11") modApi("dev.architectury:architectury-neoforge:${archversion}")
+        if (minecraft=="1.21.1" || minecraft=="1.21.9" || minecraft=="1.21.11") modApi("dev.architectury:architectury-neoforge:${archversion}")
-        else modApi("dev.architectury:architectury-forge:${archversion}") // NOTE: this could be wrong
+        else modApi("dev.architectury:architectury-neoforge:${archversion}") // NOTE: this could be wrong
         implementation("thedarkcolour:kotlinforforge-neoforge:6.0.0")
 
     }

settings.gradle.kts

@@ -27,7 +27,7 @@ stonecutter {
         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")
-        mc("neoforge", "1.20.4", "1.21.9", "1.21.11")
+        mc("neoforge", "1.20.4", "1.21.1", "1.21.9", "1.21.11")
     }
     create(rootProject)
 }

src/main/java/org/neoflock/neocomputers/platforms/fabric/ModMenuIntegration.java

@@ -1,5 +1,5 @@
 //? if fabric {
-package org.neoflock.neocomputers.platforms.fabric;
+/*package org.neoflock.neocomputers.platforms.fabric;
 
 import com.terraformersmc.modmenu.api.ConfigScreenFactory;
 import com.terraformersmc.modmenu.api.ModMenuApi;
@@ -10,4 +10,4 @@ public class ModMenuIntegration implements ModMenuApi {
         return ConfigScreen::createConfigScreen;
     }
 }
-//?}
+*///?}

src/main/java/org/neoflock/neocomputers/platforms/fabric/NeoComputersFabric.java

@@ -1,5 +1,5 @@
 //? if fabric {
-package org.neoflock.neocomputers.platforms.fabric;
+/*package org.neoflock.neocomputers.platforms.fabric;
 
 import org.neoflock.neocomputers.ModPlatform;
 import net.fabricmc.api.ModInitializer;
@@ -24,4 +24,4 @@ public class NeoComputersFabric implements ModInitializer {
 		}
 	}
 }
-//?}
+*///?}

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

@@ -2,17 +2,36 @@ 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.CaseEntityRenderer;
+import org.neoflock.neocomputers.entity.render.*;
-import org.neoflock.neocomputers.entity.render.ScreenEntityRenderer;
+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);
+
-        BlockEntityRenderers.register(BlockEntities.INSTANCE.getCASE_ENTITY().get(), CaseEntityRenderer::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/CableModel.java

@@ -1,138 +0,0 @@
-//package org.neoflock.neocomputers.platforms.fabric.client.model;
-//
-//import net.fabricmc.fabric.api.renderer.v1.Renderer;
-//import net.fabricmc.fabric.api.renderer.v1.RendererAccess;
-//import net.fabricmc.fabric.api.renderer.v1.mesh.Mesh;
-//import net.fabricmc.fabric.api.renderer.v1.mesh.MeshBuilder;
-//import net.fabricmc.fabric.api.renderer.v1.mesh.MutableQuadView;
-//import net.fabricmc.fabric.api.renderer.v1.mesh.QuadEmitter;
-//import net.fabricmc.fabric.api.renderer.v1.model.FabricBakedModel;
-//import net.fabricmc.fabric.api.renderer.v1.render.RenderContext;
-//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.*;
-//import net.minecraft.core.BlockPos;
-//import net.minecraft.core.Direction;
-//import net.minecraft.resources.ResourceLocation;
-//import net.minecraft.util.RandomSource;
-//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 java.util.ArrayList;
-//import java.util.Collection;
-//import java.util.List;
-//import java.util.function.Function;
-//import java.util.function.Supplier;
-//
-//// this totally could have been done with datagen, why do i do this
-//public class CableModel implements BakedModel, UnbakedModel, FabricBakedModel {
-////    private TextureAtlasSprite sprite = Minecraft
-////    TextureAtlasSprite sprite = atlas.apply(new Material(TextureAtlas.LOCATION_BLOCKS, ResourceLocation.withDefaultNamespace("block/furnace_top")));
-//
-//    private float MIN = 6/16F;
-//    private float MAX = 10/16F;
-//
-//    private BlockState state;
-//
-//    private Mesh mesh;
-//    @Override
-//    public List<BakedQuad> getQuads(@Nullable BlockState state, @Nullable Direction direction, RandomSource random) {
-////        NeoComputers.INSTANCE.getLOGGER().info("Obtained blockstate!");
-//        this.state = state;
-//        return List.of();
-//    }
-//
-//    @Override
-//    public boolean useAmbientOcclusion() {
-//        return false;
-//    }
-//
-//    @Override
-//    public boolean isGui3d() {
-//        return true;
-//    }
-//
-//    @Override
-//    public boolean usesBlockLight() {
-//        return true;
-//    }
-//
-//    @Override
-//    public boolean isCustomRenderer() {
-//        return false;
-//    }
-//
-//    @Override
-//    public TextureAtlasSprite getParticleIcon() {
-//        Function<ResourceLocation, TextureAtlasSprite> atlas = Minecraft.getInstance().getTextureAtlas(TextureAtlas.LOCATION_BLOCKS);
-//        return atlas.apply(ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "block/teto"));
-//    }
-//
-//    @Override
-//    public ItemTransforms getTransforms() {
-//        return ItemTransforms.NO_TRANSFORMS;
-//    }
-//
-//    @Override
-//    public ItemOverrides getOverrides() {
-//        return ItemOverrides.EMPTY;
-//    }
-//
-//    @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) {
-//        TextureAtlasSprite sprite = spriteGetter.apply(new Material(TextureAtlas.LOCATION_BLOCKS, ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "block/teto")));
-//
-//        Renderer renderer = RendererAccess.INSTANCE.getRenderer();
-//        MeshBuilder builder = renderer.meshBuilder();
-//        QuadEmitter emitter = builder.getEmitter();
-//
-//        bakeCenter(emitter, sprite);
-//
-//
-//        mesh = builder.build();
-//        return this;
-//    }
-//
-//    @Override
-//    public void emitBlockQuads(BlockAndTintGetter blockView, BlockState state, BlockPos pos, Supplier<RandomSource> randomSupplier, RenderContext context) {
-//        mesh.outputTo(context.getEmitter());
-//    }
-//
-//    public void bakeCenter(QuadEmitter emitter, TextureAtlasSprite sprite) {
-//        for (Direction dir : Direction.values()) {
-//            emitter.square(dir, MIN, MIN, MAX, MAX, MIN);
-//            emitter.spriteBake(sprite, MutableQuadView.BAKE_LOCK_UV);
-//            emitter.color(-1, -1, -1, -1);
-//            emitter.emit();
-//        }
-//    }
-//    public void bakeConnection(Direction dir, QuadEmitter emitter, TextureAtlasSprite sprite) {
-//        int mag = dir.getStepX()+dir.getStepZ(); // i dont want to hear it
-//        float bottom = dir.getStepY()==0 ? 6/16F : (dir.getStepY()==1 ? 10/16F : 0F);
-//
-//        for (Direction d : dir.getAxis().getPlane().faces) {
-//            emitter.square(d, (6/16F)+0.5F*mag, bottom, 6/16F)
-//        }
-//
-//    }
-//
-////    @Override
-////    public boolean isVanillaAdapter() {
-////        return false; // TODO: let this be true so maybe forge and fabric can be unified
-////    }
-//}

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

@@ -1,24 +1,22 @@
 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 CABLE = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "cable");
+    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();
+           final ModelResourceLocation id = context.topLevelId();
-////           if (id != null && id.id().getNamespace().equals(NeoComputers.MODID)) NeoComputers.INSTANCE.getLOGGER().info("{} {} {}", id.id().getNamespace(), id.id().getPath(), id.id().getPath().equals(CABLE.id().getPath()));
+           if (id != null && id.id().equals(ROBOT)) {
-//           if (id != null && id.id().equals(CABLE)) {
+               return new FabricModelWrapper(new RobotModel());
-////               NeoComputers.INSTANCE.getLOGGER().error("DOING CABLEEEEEEE");
+           }
-//               return new CableModel();
-//           } else {
-//               return original;
-//           }
             return original;
         });
     }

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

@@ -1,5 +1,5 @@
 //? if neoforge {
-/*package org.neoflock.neocomputers.platforms.neoforge;
+package org.neoflock.neocomputers.platforms.neoforge;
 
 import org.neoflock.neocomputers.ConfigScreen;
 import org.neoflock.neocomputers.ModPlatform;
@@ -8,8 +8,8 @@ import net.neoforged.fml.ModLoadingContext;
 import net.neoforged.fml.common.Mod;
 import org.neoflock.neocomputers.NeoComputers;
 //? if <1.21 {
-/^import net.neoforged.neoforge.client.ConfigScreenHandler;
+/*import net.neoforged.neoforge.client.ConfigScreenHandler;
-^///?} else {
+*///?} else {
 import net.neoforged.neoforge.client.gui.IConfigScreenFactory;
 //?}
 @Mod("neocomputers")
@@ -18,11 +18,11 @@ public class NeoComputersNeoForge {
 		NeoComputers.INSTANCE.entrypoint(new NeoForgePlatform());
         ModLoadingContext.get().registerExtensionPoint(
                 //? if <1.21 {
-                /^ConfigScreenHandler.ConfigScreenFactory.class,
+                /*ConfigScreenHandler.ConfigScreenFactory.class,
                 () -> new ConfigScreenHandler.ConfigScreenFactory(
                         ((client, parent) -> ConfigScreen.createConfigScreen(parent))
                 )
-                ^///?} else {
+                *///?} else {
                 IConfigScreenFactory.class,
                 () -> (client, parent) -> ConfigScreen.createConfigScreen(parent)
                 //?}
@@ -40,4 +40,4 @@ public class NeoComputersNeoForge {
         }
     }
 }
-*///?}
+//?}

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

@@ -1,7 +1,5 @@
 package org.neoflock.neocomputers
 
-import com.mojang.blaze3d.vertex.DefaultVertexFormat
-import com.mojang.blaze3d.vertex.VertexFormat
 import dev.architectury.event.events.client.ClientLifecycleEvent
 import dev.architectury.event.events.common.LifecycleEvent
 import dev.architectury.event.events.common.PlayerEvent
@@ -15,24 +13,22 @@ 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.client.renderer.RenderStateShard
+import net.minecraft.client.renderer.blockentity.BlockEntityRenderers
-import net.minecraft.client.renderer.RenderType
 import net.minecraft.server.level.ServerPlayer
-import org.neoflock.neocomputers.block.NodeBlockEntity
+import org.neoflock.neocomputers.block.DeviceBlockEntity
-import org.neoflock.neocomputers.block.NodeSynchronizer
+import org.neoflock.neocomputers.entity.render.EntityRenderers
-import org.neoflock.neocomputers.gui.buffer.BufferRenderer
 import org.neoflock.neocomputers.gui.render.ScreenRenderer
 import org.neoflock.neocomputers.gui.widget.ComponentRoles
-import org.neoflock.neocomputers.item.GPUCard
 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
-import java.nio.Buffer
 
 object NeoComputers {
     const val MODID: String = "neocomputers"
@@ -58,10 +54,14 @@ object NeoComputers {
         Tabs.TABS.register()
         Sounds.SOUNDS.register()
         ComponentRoles.mapDefaultTextures()
-        // i dont know why architectury wants two lambdas but whatever
+        // 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()
+                EntityRenderers.registerBlockEntityRenderers()
             }
             ClientLifecycleEvent.CLIENT_STARTED.register {
                 FontProvider.load(ResourceLocation.fromNamespaceAndPath(MODID, "font/unscii.hex"))
@@ -87,12 +87,6 @@ object NeoComputers {
             Networking.channels.remove()
         }
 
-        ClientLifecycleEvent.CLIENT_STARTED.register {
-            Networking.allNodes.remove()
-            Networking.wirelessNodes.remove()
-            Networking.channels.remove()
-        }
-
         PlayerEvent.CLOSE_MENU.register {
             player, menu ->
             if(player is ServerPlayer) NodeSynchronizer.playerScreenClosed(player)
@@ -111,19 +105,35 @@ object NeoComputers {
                     packet, ctx ->
                 val player = ctx.player
                 if(player is ServerPlayer) {
-                    NodeSynchronizer.screenMap[player]?.processScreenInteraction(player, packet.buffer)
+                    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.StatePayload.TYPE, NodeSynchronizer.StatePayload.CODEC, {
+            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 NodeBlockEntity) {
+                if(ent is DeviceBlockEntity) {
-                    ent.syncWithUpstream(packet.buffer)
+                    ent.processCommits(packet.buffers)
                 }
             })
 
@@ -143,7 +153,7 @@ object NeoComputers {
         }}
         EnvExecutor.runInEnv(Env.SERVER) {{
             // https://github.com/architectury/architectury-api/issues/518
-            NetworkManager.registerS2CPayloadType(NodeSynchronizer.StatePayload.TYPE, NodeSynchronizer.StatePayload.CODEC)
+            NetworkManager.registerS2CPayloadType(NodeSynchronizer.DeviceBlockStatePayload.TYPE, NodeSynchronizer.DeviceBlockStatePayload.CODEC)
             NetworkManager.registerS2CPayloadType(NodeSynchronizer.ScreenPayload.TYPE, NodeSynchronizer.ScreenPayload.CODEC)
             NetworkManager.registerS2CPayloadType(NodeSynchronizer.BeepDataPayload.TYPE, NodeSynchronizer.BeepDataPayload.CODEC)
         }}

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

@@ -0,0 +1,16 @@
+package org.neoflock.neocomputers.block
+
+import net.minecraft.core.BlockPos
+import net.minecraft.world.level.block.EntityBlock
+import net.minecraft.world.level.block.entity.BlockEntity
+import net.minecraft.world.level.block.state.BlockState
+import org.neoflock.neocomputers.entity.AssemblerEntity
+
+class AssemblerBlock : BaseBlock(), EntityBlock { // TODO: component stuff
+    override fun newBlockEntity(
+        pos: BlockPos,
+        state: BlockState
+    ): BlockEntity? {
+        return AssemblerEntity(pos, state)
+    }
+}

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

@@ -5,6 +5,7 @@ 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.client.renderer.RenderType
 import net.minecraft.core.registries.Registries
 import net.minecraft.resources.ResourceLocation
 import net.minecraft.resources.ResourceKey
@@ -34,6 +35,10 @@ object Blocks {
     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() }
+    val ASSEMBLER_BLOCK: RegistrySupplier<Block> = BaseBlock.register("assembler") { AssemblerBlock() }
 
     fun registerBlockItems() {
         BLOCKS.forEach(Consumer { sup: RegistrySupplier<Block> ->

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

@@ -3,6 +3,13 @@ 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
@@ -11,13 +18,16 @@ 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() : BaseBlock(Properties.of()), EntityBlock {
+class CableBlock() : DeviceBlock(Properties.of()), EntityBlock {
     companion object {
         val NORTH = BooleanProperty.create("north")
         val EAST = BooleanProperty.create("east")
@@ -26,26 +36,41 @@ class CableBlock() : BaseBlock(Properties.of()), EntityBlock {
         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)
+        val shapeCache: Array<VoxelShape?> = arrayOfNulls(Direction.entries.size*Direction.entries.size*Direction.entries.size*Direction.entries.size*Direction.entries.size*Direction.entries.size)
-//
+
-//        fun makeShapes() { // screw perf
+        fun calcIdx(north: Boolean, south: Boolean, east: Boolean, west: Boolean, up: Boolean, down: Boolean): Int {
-//            for (north in arrayOf(false, true)) { // shut up
+            var idx = if (down) 1 else 0
-//                for (east in arrayOf(false, true)) {
+            idx += 2*(if (up) 1 else 0)
-//                    for (west in arrayOf(false, true)) {
+            idx += 4*(if (west) 1 else 0)
-//                        for (south in arrayOf(false, true)) {
+            idx += 8*(if (east) 1 else 0)
-//                            for (up in arrayOf(false, true)) {
+            idx += 16*(if (south) 1 else 0)
-//                                for (down in arrayOf(false, true)) {
+            idx += 32*(if (north) 1 else 0)
-//                                    val shape = makeShape(north, south, east, west, up, down)
+            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)
@@ -68,6 +93,24 @@ class CableBlock() : BaseBlock(Properties.of()), EntityBlock {
                 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 {
@@ -78,7 +121,9 @@ class CableBlock() : BaseBlock(Properties.of()), EntityBlock {
             .setValue(SOUTH, false)
             .setValue(UP, false)
             .setValue(DOWN, false)
+            .setValue(COLOR, DyeColor.LIGHT_GRAY)
         )
+        makeShapes()
     }
 
 
@@ -89,15 +134,16 @@ class CableBlock() : BaseBlock(Properties.of()), EntityBlock {
             .add(SOUTH)
             .add(WEST)
             .add(UP)
-            .add(DOWN))
+            .add(DOWN)
+            .add(COLOR))
     }
 
-    override fun newBlockEntity(pos: BlockPos, state: BlockState): BlockEntity? {
+    override fun newBlockEntity(pos: BlockPos, state: BlockState) = CableEntity(pos, state)
-        return CableEntity(pos, state)
-    }
 
     override fun getShape(state: BlockState, level: BlockGetter, pos: BlockPos, context: CollisionContext): VoxelShape? {
-        return makeShape(state.getValue(NORTH), state.getValue(SOUTH), state.getValue(EAST), state.getValue(WEST), state.getValue(UP), state.getValue(DOWN))
+        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) {
@@ -106,10 +152,25 @@ class CableBlock() : BaseBlock(Properties.of()), EntityBlock {
 //            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
+//        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), value))
+        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

@@ -1,9 +1,10 @@
 package org.neoflock.neocomputers.block
 
-import net.minecraft.client.player.LocalPlayer
 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
@@ -18,16 +19,30 @@ 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) : NodeBlockEntity(type, pos, state) {
+open class CapacitorEntity(val capacity: Long, type: BlockEntityType<*>, pos: BlockPos, state: BlockState) : DeviceBlockEntity(type, pos, state) {
 
-    override val deviceNode = object : DeviceNode() {
+    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()
+        }
     }
 
-    override fun loadAdditional(compoundTag: CompoundTag, provider: HolderLookup.Provider) {
+    // TODO: cache list
-        super.loadAdditional(compoundTag, provider)
+    override fun getDeviceNodes() = listOf(deviceNode)
-        deviceNode.energy = min(compoundTag.getLong("energy"), deviceNode.energyCapacity)
+    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) {
@@ -40,7 +55,7 @@ class CapacitorEntityTier1(pos: BlockPos, state: BlockState): CapacitorEntity(20
 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) : NodeBlock()  {
+class CapacitorBlock(val tier: Int) : DeviceBlock()  {
     override fun newBlockEntity(blockPos: BlockPos, blockState: BlockState): BlockEntity {
         val cap: CapacitorEntity = when(tier) {
             1 -> CapacitorEntityTier1(blockPos, blockState)
@@ -48,7 +63,7 @@ class CapacitorBlock(val tier: Int) : NodeBlock()  {
             3 -> CapacitorEntityTier3(blockPos, blockState)
             else -> throw UnsupportedOperationException("unsupported tier: $tier")
         }
-        return cap.initNetworking()
+        return cap
     }
 
     override fun useWithoutItem(
@@ -59,12 +74,11 @@ class CapacitorBlock(val tier: Int) : NodeBlock()  {
         blockHitResult: BlockHitResult
     ): InteractionResult {
         if(level.isClientSide()) {
-            val p = player as LocalPlayer
             val ent = level.getBlockEntity(blockPos)
             if(ent is CapacitorEntity) {
-                if(p.isCrouching) ent.deviceNode.giveEnergy(1)
+                if(player.isCrouching) ent.deviceNode.giveEnergy(1)
-                val msg = PlayerChatMessage.system("energy: ${ent.deviceNode.energy} / ${ent.capacity} (${ent.computeEdges().size} edges, ${ent.deviceNode.getReachable().size} connected)")
+                val msg = PlayerChatMessage.system("energy: ${ent.deviceNode.energy} / ${ent.capacity} (${ent.deviceNode.connections.size} connections, ${ent.deviceNode.getReachable().size} reachable)")
-                p.sendSystemMessage(OutgoingChatMessage.create(msg).content())
+                player.sendSystemMessage(OutgoingChatMessage.create(msg).content())
             }
         }
         return InteractionResult.SUCCESS

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

@@ -3,37 +3,25 @@ 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() : NodeBlock(Properties.of().sound(SoundType.METAL).lightLevel(CaseBlock::getLuminance)) { // placeholder stuff
+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")!!
@@ -47,7 +35,7 @@ class CaseBlock() : NodeBlock(Properties.of().sound(SoundType.METAL).lightLevel(
         registerDefaultState(stateDefinition.any().setValue(FACING, Direction.NORTH).setValue(COMPUTER_RUNNING, false))
     }
 
-    override fun newBlockEntity(blockPos: BlockPos, blockState: BlockState) = CaseBlockEntity(blockPos, blockState).initNetworking()
+    override fun newBlockEntity(blockPos: BlockPos, blockState: BlockState) = CaseBlockEntity(blockPos, blockState)
 
     override fun createBlockStateDefinition(builder: StateDefinition.Builder<Block?, BlockState?>) {
         builder.add(COMPUTER_RUNNING)
@@ -58,17 +46,19 @@ class CaseBlock() : NodeBlock(Properties.of().sound(SoundType.METAL).lightLevel(
         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[dirToIdx(direction.opposite)]
+        return getMachine(blockGetter, blockPos).redstoneOut[direction.opposite.ordinal]
     }
 
     override fun onPlace(
-        blockState: BlockState,
+        state: BlockState,
         level: Level,
         blockPos: BlockPos,
         blockState2: BlockState,
@@ -78,7 +68,7 @@ class CaseBlock() : NodeBlock(Properties.of().sound(SoundType.METAL).lightLevel(
             level.updateNeighborsAt(blockPos, this)
             getMachine(level, blockPos).refetchAllRedstone()
         }
-        super.onPlace(blockState, level, blockPos, blockState2, bl)
+        super.onPlace(state, level, blockPos, blockState2, bl)
     }
 
     override fun getStateForPlacement(context: BlockPlaceContext): BlockState? {
@@ -115,7 +105,7 @@ class CaseBlock() : NodeBlock(Properties.of().sound(SoundType.METAL).lightLevel(
             } else {
                 // Open menu
                 MenuRegistry.openMenu(player as ServerPlayer, ent)
-                NodeSynchronizer.registerPlayerScreen(player, ent)
+                NodeSynchronizer.registerPlayerScreen(player, ent.deviceNode)
             }
         }
         return InteractionResult.SUCCESS

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

@@ -23,13 +23,14 @@ 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 : NodeBlock(), EntityBlock {
+class SolarGeneratorBlock : DeviceBlock(), EntityBlock {
-    override fun newBlockEntity(blockPos: BlockPos, blockState: BlockState): BlockEntity = SolarGeneratorBlockEntity(blockPos, blockState).initNetworking()
+    override fun newBlockEntity(blockPos: BlockPos, blockState: BlockState): BlockEntity = SolarGeneratorBlockEntity(blockPos, blockState)
 }
 
 // TODO: make it glow when burning
-class CombustionGeneratorBlock : NodeBlock, EntityBlock {
+class CombustionGeneratorBlock : DeviceBlock, EntityBlock {
     companion object {
         val COMBUSTGEN_ACTIVE = BooleanProperty.create("active")
 
@@ -42,7 +43,7 @@ class CombustionGeneratorBlock : NodeBlock, EntityBlock {
         registerDefaultState(defaultBlockState().setValue(COMBUSTGEN_ACTIVE, false))
     }
 
-    override fun newBlockEntity(blockPos: BlockPos, blockState: BlockState): BlockEntity = CombustionGeneratorBlockEntity(blockPos, blockState).initNetworking()
+    override fun newBlockEntity(blockPos: BlockPos, blockState: BlockState): BlockEntity = CombustionGeneratorBlockEntity(blockPos, blockState)
 
     override fun useWithoutItem(
         blockState: BlockState,
@@ -54,7 +55,7 @@ class CombustionGeneratorBlock : NodeBlock, EntityBlock {
         if(!level.isClientSide()) {
             val sp = player as ServerPlayer
             val ent = level.getBlockEntity(blockPos, BlockEntities.COMBUSTGEN_ENTITY.get()).get()
-            NodeSynchronizer.registerPlayerScreen(sp, ent)
+            NodeSynchronizer.registerPlayerScreen(sp, ent.deviceNode)
             MenuRegistry.openMenu(sp, ent)
         }
         return InteractionResult.SUCCESS

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

@@ -1,304 +0,0 @@
-package org.neoflock.neocomputers.block
-
-import dev.architectury.networking.NetworkManager
-import io.netty.buffer.Unpooled
-import net.minecraft.core.BlockPos
-import net.minecraft.core.HolderLookup
-import net.minecraft.nbt.CompoundTag
-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 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 org.neoflock.neocomputers.NeoComputers
-import org.neoflock.neocomputers.network.Networking
-import org.neoflock.neocomputers.network.DeviceNode
-import java.time.Duration
-
-object NodeSynchronizer {
-    class StatePayload(var blockPos: BlockPos, var buffer: FriendlyByteBuf): CustomPacketPayload {
-        companion object {
-            val NODE_SYNC_ID = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "node_sync")
-            val TYPE = CustomPacketPayload.Type<StatePayload>(NODE_SYNC_ID)
-            val CODEC = object : StreamCodec<RegistryFriendlyByteBuf, StatePayload> {
-                override fun decode(buf: RegistryFriendlyByteBuf): StatePayload {
-                    val blockPos = buf.readBlockPos()
-                    val buffer = FriendlyByteBuf(buf.copy(buf.readerIndex(), buf.readableBytes()))
-                    return StatePayload(blockPos, buffer)
-                }
-
-                override fun encode(buf: RegistryFriendlyByteBuf, payload: StatePayload) {
-                    buf.writeBlockPos(payload.blockPos)
-                    buf.writeBytes(payload.buffer)
-                }
-            }
-        }
-
-        override fun type() = TYPE
-    }
-
-    class ScreenPayload(var entityTypeWireID: String, 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 id = buf.readByteArray().decodeToString()
-                    val buffer = FriendlyByteBuf(buf.copy(buf.readerIndex(), buf.readableBytes()))
-                    return ScreenPayload(id, buffer)
-                }
-
-                override fun encode(buf: RegistryFriendlyByteBuf, payload: ScreenPayload) {
-                    buf.writeByteArray(payload.entityTypeWireID.encodeToByteArray())
-                    buf.writeBytes(payload.buffer)
-                }
-            }
-        }
-
-        override fun type() = TYPE
-    }
-
-    class ScreenDataPayload(var entityTypeWireID: String, 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 id = buf.readByteArray().decodeToString()
-                    val buffer = FriendlyByteBuf(buf.copy(buf.readerIndex(), buf.readableBytes()))
-                    return ScreenDataPayload(id, buffer)
-                }
-
-                override fun encode(buf: RegistryFriendlyByteBuf, payload: ScreenDataPayload) {
-                    buf.writeByteArray(payload.entityTypeWireID.encodeToByteArray())
-                    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, NodeBlockEntity>()
-
-    fun playerScreenClosed(player: ServerPlayer) {
-        screenMap.remove(player)
-    }
-
-    fun nodeTypeToWireID(nodeType: BlockEntityType<*>): String = nodeType.javaClass.canonicalName
-
-    fun registerPlayerScreen(player: ServerPlayer, entity: NodeBlockEntity) {
-        screenMap[player] = entity
-    }
-
-    fun syncScreens() {
-        for((player, ent) in screenMap) {
-            val buf = FriendlyByteBuf(Unpooled.buffer())
-            ent.encodeScreenData(player, buf)
-            NetworkManager.sendToPlayer(player, ScreenPayload(nodeTypeToWireID(ent.type), 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)
-            }
-        }
-    }
-}
-
-abstract class NodeBlockEntity(blockEntityType: BlockEntityType<*>, blockPos: BlockPos, blockState: BlockState) : BlockEntity(blockEntityType, blockPos, blockState) {
-    abstract val deviceNode: DeviceNode
-
-    fun initNetworking(): NodeBlockEntity {
-        Networking.addNode(deviceNode)
-        invalidateNodeState()
-        return this
-    }
-
-    // runs on the server, meant to encode state to send to all players
-    open fun encodeDownstreamData(packet: FriendlyByteBuf) {
-        packet.writeUUID(deviceNode.address)
-        packet.writeLong(deviceNode.energy)
-        packet.writeLong(deviceNode.energyCapacity)
-        packet.writeEnum(deviceNode.reachability)
-        packet.writeEnum(deviceNode.powerRole)
-    }
-
-    // runs on the client, meant to decode server state packets to synchronize client state
-    open fun syncWithUpstream(packet: FriendlyByteBuf) {
-        Networking.changeNodeAddress(deviceNode, packet.readUUID())
-        deviceNode.energy = packet.readLong()
-        deviceNode.energyCapacity = packet.readLong()
-        deviceNode.reachability = packet.readEnum(deviceNode.reachability.javaClass)
-        deviceNode.powerRole = packet.readEnum(deviceNode.powerRole.javaClass)
-    }
-
-    // Encodes data meant for the associated screen of a player
-    open fun encodeScreenData(player: ServerPlayer, packet: FriendlyByteBuf) {}
-
-    open fun processScreenInteraction(player: ServerPlayer, packet: FriendlyByteBuf) {}
-
-    private var stateIsDirty = true
-
-    open fun getNeighbourEntities(): List<BlockEntity> {
-        val subpos = listOf(
-            blockPos.offset(0, 0, 1),
-            blockPos.offset(0, 0, -1),
-            blockPos.offset(0, 1, 0),
-            blockPos.offset(0, -1, 0),
-            blockPos.offset(1, 0, 0),
-            blockPos.offset(-1, 0, 0),
-        )
-
-        return subpos.mapNotNull { pos -> level?.getBlockEntity(pos) }
-    }
-
-    open fun computeEdges(): Set<NodeBlockEntity> {
-        val s = mutableSetOf<NodeBlockEntity>()
-        val neighbours = getNeighbourEntities()
-        for(neighbour in neighbours) {
-            if(neighbour is NodeBlockEntity) s.add(neighbour);
-            // TODO: handle cable entities
-        }
-        s.remove(this)
-        return s
-    }
-
-    open fun invalidateNodeState() {
-        stateIsDirty = true
-    }
-
-    open fun needsSynchronization() = stateIsDirty
-
-    open fun tickNode(level: Level) {
-        if(!level.isClientSide) {
-            val l = level as ServerLevel
-            val packetBuf = FriendlyByteBuf(Unpooled.buffer())
-            encodeDownstreamData(packetBuf)
-            l.players().forEach {
-                if(it.level().isLoaded(blockPos)) NetworkManager.sendToPlayer(it, NodeSynchronizer.StatePayload(blockPos, packetBuf))
-            }
-        }
-        if(!stateIsDirty) return
-        stateIsDirty = false
-        computeEdges().forEach {
-            deviceNode.connectTo(it.deviceNode)
-        }
-    }
-
-    override fun setChanged() {
-        invalidateNodeState()
-        computeEdges().forEach { it.invalidateNodeState() }
-        super.setChanged()
-    }
-
-    override fun setRemoved() {
-        super.setRemoved()
-        Networking.removeNode(deviceNode)
-    }
-
-    override fun clearRemoved() {
-        super.clearRemoved()
-        initNetworking()
-    }
-
-    override fun loadAdditional(compoundTag: CompoundTag, provider: HolderLookup.Provider) {
-        super.loadAdditional(compoundTag, provider)
-        invalidateNodeState()
-        computeEdges().forEach { it.invalidateNodeState() }
-    }
-}
-
-abstract class NodeBlock(properties: Properties = Properties.of()): BaseBlock(properties), EntityBlock {
-    override fun <T : BlockEntity> getTicker(
-        level: Level,
-        blockState: BlockState,
-        blockEntityType: BlockEntityType<T>
-    ): BlockEntityTicker<T>? {
-        return object : BlockEntityTicker<T> {
-            override fun tick(level: Level, blockPos: BlockPos, blockState: BlockState, blockEntity: T) {
-                if(blockEntity !is NodeBlockEntity) return
-                if(Networking.getNode(blockEntity.deviceNode.address) == null) blockEntity.initNetworking()
-                blockEntity.tickNode(level)
-            }
-        }
-    }
-
-    override fun onPlace(
-        blockState: BlockState,
-        level: Level,
-        blockPos: BlockPos,
-        blockState2: BlockState,
-        bl: Boolean
-    ) {
-        super.onPlace(blockState, level, blockPos, blockState2, bl)
-        if(!level.isClientSide) {
-            val ent = level.getBlockEntity(blockPos)
-            if(ent is NodeBlockEntity) {
-                ent.invalidateNodeState()
-                ent.computeEdges().forEach { it.invalidateNodeState() }
-            }
-            level.updateNeighborsAt(blockPos, this)
-        }
-    }
-
-    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 ent = level.getBlockEntity(blockPos)
-            if(ent is NodeBlockEntity) {
-                ent.invalidateNodeState()
-            }
-
-        }
-    }
-}

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

@@ -15,9 +15,7 @@ import org.neoflock.neocomputers.entity.BlockEntities
 import org.neoflock.neocomputers.network.Networking
 import org.neoflock.neocomputers.network.DeviceNode
 
-fun dirToIdx(direction: Direction) = Direction.entries.indexOf(direction)
+class RedstoneIOEntity(blockPos: BlockPos, blockState: BlockState): SingleDeviceBlockEntity(BlockEntities.REDSTONEIO_ENTITY.get(), blockPos, blockState) {
-
-class RedstoneIOEntity(blockPos: BlockPos, blockState: BlockState): NodeBlockEntity(BlockEntities.REDSTONEIO_ENTITY.get(), blockPos, blockState) {
     val redstoneIn = Array<Int>(Direction.entries.size) {0}
     val redstoneOut = Array<Int>(Direction.entries.size) {0}
 
@@ -29,7 +27,7 @@ class RedstoneIOEntity(blockPos: BlockPos, blockState: BlockState): NodeBlockEnt
     fun refetch(dir: Direction) {
         val src = blockPos.offset(dir.stepX, dir.stepY, dir.stepZ)
         val cur = level?.getSignal(src, dir) ?: 0
-        val idx = dirToIdx(dir)
+        val idx = dir.ordinal
         if(redstoneIn[idx] != cur) {
             onRedstoneSignalChanged(dir, redstoneIn[idx], cur)
         }
@@ -41,12 +39,12 @@ class RedstoneIOEntity(blockPos: BlockPos, blockState: BlockState): NodeBlockEnt
     }
 
     fun onRedstoneSignalChanged(dir: Direction, oldValue: Int, newValue: Int) {
-        Networking.emitMessage(deviceNode, Networking.ComputerUncheckedSignal(deviceNode, "redstone_changed", arrayOf(deviceNode.address.toString(), dirToIdx(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")
     }
 }
 
-class RedstoneIOBlock(): NodeBlock(Properties.of().isRedstoneConductor { state, getter, pos -> true }) {
+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? {
@@ -67,7 +65,7 @@ class RedstoneIOBlock(): NodeBlock(Properties.of().isRedstoneConductor { state,
     ): Int {
         val redstoneIO = getRedstoneIO(blockGetter, blockPos)
         if(redstoneIO != null) {
-            return redstoneIO.redstoneOut[dirToIdx(direction.opposite)]
+            return redstoneIO.redstoneOut[direction.opposite.ordinal]
         }
         return super.getSignal(blockState, blockGetter, blockPos, direction)
     }
@@ -125,7 +123,7 @@ class RedstoneIOBlock(): NodeBlock(Properties.of().isRedstoneConductor { state,
             val redio = getRedstoneIO(level, blockPos)
             val dir = blockHitResult.direction
             if (redio != null) {
-                val idx = dirToIdx(dir)
+                val idx = dir.ordinal
                 redio.redstoneOut[idx]++
                 redio.redstoneOut[idx] %= 16
                 NeoComputers.LOGGER.info("outputting redstone level ${redio.redstoneOut[idx]} on ${dir.name}")

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

@@ -26,23 +26,19 @@ 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() : NodeBlock() {
+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
-        val ENERGY: Long = 5
     }
 
     init {
         registerDefaultState(stateDefinition.any().setValue(FACING_HORIZ, Direction.NORTH).setValue(FACING_VERTI, 1))
     }
 
-    override fun newBlockEntity(blockPos: BlockPos, blockState: BlockState): BlockEntity? {
+    override fun newBlockEntity(blockPos: BlockPos, blockState: BlockState) = ScreenEntity(blockPos, blockState)
-        val scr = ScreenEntity(blockPos, blockState)
-        scr.initNetworking()
-        return scr
-    }
 
     override fun useWithoutItem(
         blockState: BlockState,
@@ -52,14 +48,9 @@ class ScreenBlock() : NodeBlock() {
         blockHitResult: BlockHitResult
     ): InteractionResult {
         if(!level.isClientSide) {
-            val screenState = level.getBlockEntity(blockPos, BlockEntities.SCREEN_ENTITY.get()).get()
-            if(!screenState.deviceNode.consumeEnergy(ENERGY)) {
-                player.sendSystemMessage(Component.literal("Not enough power."))
-                return InteractionResult.SUCCESS
-            };
             val sp = player as ServerPlayer
             val ent = level.getBlockEntity(blockPos, BlockEntities.SCREEN_ENTITY.get()).get()
-            NodeSynchronizer.registerPlayerScreen(sp, ent)
+            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 {

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

@@ -4,15 +4,19 @@ 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())
+//        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/entity/AssemblerEntity.kt

@@ -0,0 +1,8 @@
+package org.neoflock.neocomputers.entity
+
+import net.minecraft.core.BlockPos
+import net.minecraft.world.level.block.entity.BlockEntity
+import net.minecraft.world.level.block.state.BlockState
+
+class AssemblerEntity(pos: BlockPos, state: BlockState) : BlockEntity(BlockEntities.ASSEMBLER_ENTITY.get(), pos, state) {
+}

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

@@ -15,6 +15,7 @@ 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
@@ -87,12 +88,36 @@ object BlockEntities {
         )
     }
 
+    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()
+        )
+    }
+
+    val ASSEMBLER_ENTITY: RegistrySupplier<BlockEntityType<AssemblerEntity>> = BLOCKENTITIES.register("assembler") {
+        BlockEntityType(
+            ::AssemblerEntity, setOf(Blocks.ASSEMBLER_BLOCK.get()), BullshitFix()
+        )
+    }
+
     fun registerPowerBlocks() {
-        PowerManager.registerPowerBlockEntity(CAPACITOR_ENTITY.get())
+        PowerManager.registerPowerDevice(CAPACITOR_ENTITY.get())
-        PowerManager.registerPowerBlockEntity(CAPACITOR2_ENTITY.get())
+        PowerManager.registerPowerDevice(CAPACITOR2_ENTITY.get())
-        PowerManager.registerPowerBlockEntity(CAPACITOR3_ENTITY.get())
+        PowerManager.registerPowerDevice(CAPACITOR3_ENTITY.get())
-        PowerManager.registerPowerBlockEntity(SOLARGEN_ENTITY.get())
+        PowerManager.registerPowerDevice(SOLARGEN_ENTITY.get())
-        PowerManager.registerPowerBlockEntity(COMBUSTGEN_ENTITY.get())
+        PowerManager.registerPowerDevice(COMBUSTGEN_ENTITY.get())
-        PowerManager.registerPowerBlockEntity(CASE_ENTITY.get())
+        PowerManager.registerPowerDevice(CASE_ENTITY.get())
     }
 }

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

@@ -2,33 +2,46 @@ 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.NodeBlockEntity
+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) : BlockEntity(BlockEntities.CABLE_ENTITY.get(), pos, state) {
+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()
-//        val neighbors = getNeighbourEntities()
-
         for (dir in Direction.entries) {
             val ent = level!!.getBlockEntity(blockPos.relative(dir))
-            level!!.setBlockAndUpdate(blockPos, blockState.setValue(CableBlock.getPropByDirection(dir), (ent is NodeBlockEntity || ent is CableEntity)))
+            level!!.setBlockAndUpdate(blockPos, blockState.setValue(getPropByDirection(dir), CableBlock.shouldConnect(blockPos, blockPos.relative(dir), level!!)))
+            if(ent is DeviceBlockEntity) {
+                ent.connectionsAreDirty = true
+            }
         }
-
     }
-//    fun getNeighbourEntities(): List<BlockEntity> {
-//        val subpos = listOf(
-//            blockPos.offset(0, 0, 1),
-//            blockPos.offset(0, 0, -1),
-//            blockPos.offset(0, 1, 0),
-//            blockPos.offset(0, -1, 0),
-//            blockPos.offset(1, 0, 0),
-//            blockPos.offset(-1, 0, 0),
-//        )
-//
-//        return subpos.mapNotNull { pos -> level?.getBlockEntity(pos) }
-//    }
 }

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

@@ -11,6 +11,7 @@ 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
@@ -20,12 +21,11 @@ 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.NodeBlockEntity
+import org.neoflock.neocomputers.block.SingleDeviceBlockEntity
-import org.neoflock.neocomputers.block.NodeSynchronizer
-import org.neoflock.neocomputers.block.dirToIdx
 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
@@ -34,8 +34,10 @@ 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): NodeBlockEntity(BlockEntities.CASE_ENTITY.get(), blockPos, blockState), MachineEntity, GenericContainer, MenuProvider {
+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
@@ -48,45 +50,72 @@ class CaseBlockEntity(blockPos: BlockPos, blockState: BlockState): NodeBlockEnti
     override val deviceNode = object : DeviceNode() {
         override var powerRole = PowerRole.CONSUMER
         override var energyCapacity: Long = 500
-    }
 
-    override fun encodeDownstreamData(packet: FriendlyByteBuf) {
+        override fun writeFullStateCommit(buf: FriendlyByteBuf) {
-        super.encodeDownstreamData(packet)
+            super.writeFullStateCommit(buf)
-        packet.writeBoolean(isOn)
+            buf.writeUUID(address)
-        packet.writeVarInt(diskActivityTime)
+            buf.writeBoolean(isOn)
-        packet.writeVarInt(networkActivityTime)
+            buf.writeVarInt(diskActivityTime)
-        packet.writeUtf(err ?: "")
+            buf.writeVarInt(networkActivityTime)
-    }
+            buf.writeUtf(err ?: "")
-
-    override fun syncWithUpstream(packet: FriendlyByteBuf) {
-        super.syncWithUpstream(packet)
-        setRunning(packet.readBoolean())
-        diskActivityTime = packet.readVarInt()
-        networkActivityTime = packet.readVarInt()
-        err = packet.readUtf().ifEmpty { null }
-    }
-
-    override fun processScreenInteraction(player: ServerPlayer, packet: FriendlyByteBuf) {
-        val c = packet.readByte().toInt()
-        if(c == 0x01) {
-            start()
         }
-        if(c == 0x02) {
-            stop()
-        }
-    }
 
-    override fun encodeScreenData(player: ServerPlayer, packet: FriendlyByteBuf) {
+        override fun processCommit(buf: FriendlyByteBuf) {
-        super.encodeScreenData(player, packet)
+            super.processCommit(buf)
-        packet.writeBoolean(isOn)
+            Networking.changeNodeAddress(this, buf.readUUID())
-        packet.writeByteArray((err ?: "").encodeToByteArray())
+            setRunning(buf.readBoolean())
-        packet.writeLong(deviceNode.energy)
+            diskActivityTime = buf.readVarInt()
-        packet.writeLong(deviceNode.energyCapacity)
+            networkActivityTime = buf.readVarInt()
-        packet.writeLong(getMachineMemoryUsed())
+            err = buf.readUtf().ifEmpty { null }
-        packet.writeLong(getMachineMemoryTotal())
+        }
-        packet.writeLong(getMachineComponentsUsed())
+
-        packet.writeLong(getMachineComponentsTotal())
+        override fun processScreenInteraction(player: ServerPlayer, buf: FriendlyByteBuf) {
-        packet.writeUtf(arch)
+            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}
@@ -95,7 +124,7 @@ class CaseBlockEntity(blockPos: BlockPos, blockState: BlockState): NodeBlockEnti
     fun refetchRedstone(dir: Direction) {
         val src = blockPos.offset(dir.stepX, dir.stepY, dir.stepZ)
         val cur = level?.getSignal(src, dir) ?: 0
-        val idx = dirToIdx(dir)
+        val idx = dir.ordinal
         if(redstoneIn[idx] != cur) {
             onRedstoneSignalChanged(dir, redstoneIn[idx], cur)
         }
@@ -118,7 +147,7 @@ class CaseBlockEntity(blockPos: BlockPos, blockState: BlockState): NodeBlockEnti
 
     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(), dirToIdx(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
@@ -134,6 +163,7 @@ class CaseBlockEntity(blockPos: BlockPos, blockState: BlockState): NodeBlockEnti
 
     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
@@ -150,14 +180,15 @@ class CaseBlockEntity(blockPos: BlockPos, blockState: BlockState): NodeBlockEnti
         }
         // 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 archs = getMachineArchitectures()
+        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(archs.isEmpty()) {
+        if(architectures.isEmpty()) {
             crash("@neocomputers.errors.ENOCPU")
             beepAsync("-..")
             return false
@@ -179,9 +210,9 @@ class CaseBlockEntity(blockPos: BlockPos, blockState: BlockState): NodeBlockEnti
             beepAsync("-.")
             return false
         }
-        if(arch !in archs) {
+        if(arch !in architectures) {
             // Just pick one! TODO: consult EEPROM first
-            arch = archs.first()
+            arch = architectures.first()
         }
         beepAsync(".")
         setRunning(true)
@@ -195,10 +226,8 @@ class CaseBlockEntity(blockPos: BlockPos, blockState: BlockState): NodeBlockEnti
     }
 
     override fun crash(error: String): Boolean {
-        if(isOn) {
+        beepAsync("--")
-            beepAsync("--")
+        sendMachineEvent(MachineCrashEvent(this, error))
-            sendMachineEvent(MachineCrashEvent(this, error))
-        }
         setRunning(false)
         err = error
         return true
@@ -208,12 +237,12 @@ class CaseBlockEntity(blockPos: BlockPos, blockState: BlockState): NodeBlockEnti
 
     override fun getMachineNode() = deviceNode
 
-    override fun getRedstoneInput(direction: Direction): Int = redstoneIn[dirToIdx(direction)]
+    override fun getRedstoneInput(direction: Direction): Int = redstoneIn[direction.ordinal]
 
-    override fun getRedstoneOutput(direction: Direction): Int = redstoneOut[dirToIdx(direction)]
+    override fun getRedstoneOutput(direction: Direction): Int = redstoneOut[direction.ordinal]
 
     override fun setRedstoneOutput(direction: Direction, newValue: Int): Int {
-        val idx = dirToIdx(direction)
+        val idx = direction.ordinal
         val old = redstoneOut[idx]
         redstoneOut[idx] = newValue
         return old
@@ -234,7 +263,7 @@ class CaseBlockEntity(blockPos: BlockPos, blockState: BlockState): NodeBlockEnti
 
     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().size.toLong()
+    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()
@@ -251,11 +280,11 @@ class CaseBlockEntity(blockPos: BlockPos, blockState: BlockState): NodeBlockEnti
 
     override fun stillValid(player: Player): Boolean = !this.isRemoved
 
-    override fun loadAdditional(compoundTag: CompoundTag, provider: HolderLookup.Provider) {
+    override fun loadAdditional(tag: CompoundTag, registries: HolderLookup.Provider) {
-        super.loadAdditional(compoundTag, provider)
+        super.loadAdditional(tag, registries)
-        deviceNode.energy = min(deviceNode.energyCapacity, compoundTag.getLong("energy"))
+        deviceNode.energy = min(deviceNode.energyCapacity, tag.getLong("energy"))
         //isOn = compoundTag.getBoolean("powerOn")
-        ContainerHelper.loadAllItems(compoundTag, getItems(), provider)
+        ContainerHelper.loadAllItems(tag, getItems(), registries)
     }
 
     override fun saveAdditional(compoundTag: CompoundTag, provider: HolderLookup.Provider) {
@@ -273,20 +302,6 @@ class CaseBlockEntity(blockPos: BlockPos, blockState: BlockState): NodeBlockEnti
         super.setRemoved()
     }
 
-    override fun tickNode(level: Level) {
+    override fun canPlaceItem(slot: Int, stack: ItemStack): Boolean = false
-        super.tickNode(level)
+    override fun canTakeItem(target: Container, slot: Int, stack: ItemStack): Boolean = false
-        if(!level.isClientSide) {
-            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 (!deviceNode.consumeEnergy(1)) {
-                    crash("@neocomputers.errors.ENOENJ")
-                }
-            }
-        }
-    }
 }

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

@@ -1,6 +1,7 @@
 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
@@ -15,16 +16,15 @@ 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.NodeBlockEntity
+import org.neoflock.neocomputers.block.SingleDeviceBlockEntity
 import org.neoflock.neocomputers.gui.menu.CombustionGeneratorMenu
 import org.neoflock.neocomputers.network.DeviceNode
-import org.neoflock.neocomputers.network.Networking
 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) : NodeBlockEntity(BlockEntities.COMBUSTGEN_ENTITY.get(), blockPos, blockState), GenericContainer, MenuProvider {
+class CombustionGeneratorBlockEntity(blockPos: BlockPos, blockState: BlockState) : SingleDeviceBlockEntity(BlockEntities.COMBUSTGEN_ENTITY.get(), blockPos, blockState), GenericContainer, MenuProvider {
     val energyPerTick: Long = 50
 
     var burningTimeRemaining: Int = 0
@@ -32,6 +32,11 @@ class CombustionGeneratorBlockEntity(blockPos: BlockPos, blockState: BlockState)
     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)
@@ -46,8 +51,8 @@ class CombustionGeneratorBlockEntity(blockPos: BlockPos, blockState: BlockState)
         return !this.isRemoved
     }
 
-    override fun tickNode(level: Level) {
+    override fun tickDevice(level: Level) {
-        super.tickNode(level)
+        super.tickDevice(level)
         // TODO: give us a block state tag for active
 
         // keep combusting and shi
@@ -79,11 +84,6 @@ class CombustionGeneratorBlockEntity(blockPos: BlockPos, blockState: BlockState)
         level?.setBlockAndUpdate(blockPos, blockState.setValue(CombustionGeneratorBlock.COMBUSTGEN_ACTIVE, burningTimeRemaining > 0))
     }
 
-    override fun encodeScreenData(player: ServerPlayer, packet: FriendlyByteBuf) {
-        packet.writeLong(deviceNode.energy)
-        packet.writeLong(deviceNode.energyCapacity)
-    }
-
     override fun loadAdditional(compoundTag: CompoundTag, provider: HolderLookup.Provider) {
         super.loadAdditional(compoundTag, provider)
         deviceNode.energy = min(deviceNode.energyCapacity, compoundTag.getLong("energy"))

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

@@ -4,9 +4,7 @@ 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.item.ComponentItem
 import org.neoflock.neocomputers.network.DeviceNode
-import org.neoflock.neocomputers.network.Networking
 import java.time.Duration
 
 abstract class MachineEvent {
@@ -17,12 +15,16 @@ data class MachineRedstoneEvent(override val machine: MachineEntity, val side: D
 data class MachinePowerEvent(override val machine: MachineEntity, val nowRunning: Boolean): MachineEvent()
 data class MachineCrashEvent(override val machine: MachineEntity, val error: String): MachineEvent()
 
-interface MachineEntity {
+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,
@@ -40,8 +42,6 @@ interface MachineEntity {
     fun crash(error: String): Boolean
     fun getLastError(): String?
 
-    fun getMachineNode(): DeviceNode
-
     // Some metadata
     fun getMachineMemoryTotal(): Long
     fun getMachineMemoryUsed(): Long

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 +1,20 @@
+package org.neoflock.neocomputers.entity
+
+import net.minecraft.client.model.geom.ModelPart
+import net.minecraft.core.BlockPos
+import net.minecraft.network.chat.Component
+import net.minecraft.world.Nameable
+import net.minecraft.world.level.block.entity.BlockEntity
+import net.minecraft.world.level.block.entity.RandomizableContainerBlockEntity
+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,), Nameable {
+    val body: ModelPart? = null
+    val name = "Diddyx" //TODO: names
+    override fun getName(): Component? = Component.literal(name)
+
+    init {
+        NeoComputers.LOGGER.info("yooo")
+    }
+}

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

@@ -1,79 +1,117 @@
-package org.neoflock.neocomputers.entity;
+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.NodeBlockEntity
+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) :
-    NodeBlockEntity(BlockEntities.SCREEN_ENTITY.get(), blockPos, 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) {
-                // return if not directly connected
-                if(message.sender !in this.connections) return
                 val mEnv = message.machineEvent
                 NeoComputers.LOGGER.info("Got message $mEnv!")
                 if(mEnv is MachinePowerEvent) {
                     if(mEnv.nowRunning) {
-                        textBuf.set(0, 0, address.toString())
+                        lastError = null
-                    } else {
                         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
+    private var cleanRenderer: () -> Unit = { } // TODO: THIS SUCKS, FIND A BETTER WAY
 
-    override fun encodeDownstreamData(packet: FriendlyByteBuf) {
+    override fun tickDevice(level: Level) {
-        super.encodeDownstreamData(packet)
+        super.tickDevice(level)
-        textBuf.encodeContents(packet)
+        cleanRenderer()
-    }
+        createScreenTexture()
-
-    override fun syncWithUpstream(packet: FriendlyByteBuf) {
-        super.syncWithUpstream(packet)
-        textBuf.decodeContents(packet)
-    }
-
-    override fun encodeScreenData(player: ServerPlayer, packet: FriendlyByteBuf) {
-        super.encodeScreenData(player, packet)
-        textBuf.encodeContents(packet)
-    }
-
-    override fun tickNode(level: Level) {
-        super.tickNode(level)
-        cleanrenderer()
-        createscreenstuffs()
     }
 
     override fun setRemoved() {
         super.setRemoved()
         bound = "screen/unbound" // ensure no missing texture is displayed
-        cleanrenderer()
+        cleanRenderer()
     }
 
-    private fun createscreenstuffs() {
+    private fun createScreenTexture() {
         bound = "screen/"+deviceNode.address.toString().replace("-", "_")
         if (level!!.isClientSide) {
-            var renderer = BufferRenderer(ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, bound), textBuf)
+            if(lastError == null) {
-            renderer.drawBuffer()
+                if(!isOn) {
-            cleanrenderer = { renderer.clean() }
+                    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

@@ -1,25 +1,25 @@
 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.NodeBlockEntity
+import org.neoflock.neocomputers.block.SingleDeviceBlockEntity
 import org.neoflock.neocomputers.network.DeviceNode
-import org.neoflock.neocomputers.network.Networking
 import org.neoflock.neocomputers.network.PowerRole
 
-class SolarGeneratorBlockEntity(blockPos: BlockPos, blockState: BlockState) : NodeBlockEntity(BlockEntities.SOLARGEN_ENTITY.get(), blockPos, blockState) {
+class SolarGeneratorBlockEntity(blockPos: BlockPos, blockState: BlockState) : SingleDeviceBlockEntity(BlockEntities.SOLARGEN_ENTITY.get(), blockPos, blockState) {
-    val energyPerTick: Long = 50
+    val energyPerTick: Long = 10
 
     override val deviceNode = object : DeviceNode() {
         override var powerRole: PowerRole = PowerRole.GENERATOR
         override var energyCapacity: Long = 50000
     }
 
-    override fun tickNode(level: Level) {
+    override fun tickDevice(level: Level) {
-        super.tickNode(level)
+        super.tickDevice(level)
         val l = level
         if(l.isDay) {
             deviceNode.giveEnergy(energyPerTick)

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

@@ -0,0 +1,46 @@
+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.resources.ResourceLocation
+import org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.entity.AssemblerEntity
+
+class AssemblerEntityRenderer(val context: BlockEntityRendererProvider.Context) : BlockEntityRenderer<AssemblerEntity> {
+    val RENDER_TYPE = {l: ResourceLocation ->
+        RenderType.create("nc_assembler", DefaultVertexFormat.POSITION_TEX, VertexFormat.Mode.QUADS, RenderType.TRANSIENT_BUFFER_SIZE, RenderType.CompositeState.builder()
+            .setTextureState(RenderStateShard.TextureStateShard(l, false, false))
+            .setShaderState(RenderStateShard.ShaderStateShard.POSITION_TEX_SHADER)
+            .createCompositeState(false))
+    }
+
+    override fun render(blockEntity: AssemblerEntity, partialTick: Float, poseStack: PoseStack, bufferSource: MultiBufferSource, packedLight: Int, packedOverlay: Int) {
+        var buffer = bufferSource.getBuffer(RENDER_TYPE(ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/block/assembler_top_on.png")))
+        val pose = poseStack.last()
+        buffer.addVertex(pose, 0f, 17/16f, 1f).setUv(1f, 0f)
+        buffer.addVertex(pose, 1f, 17/16f, 1f).setUv(1f, 1f)
+        buffer.addVertex(pose, 1f, 17/16f, 0f).setUv(0f, 1f)
+        buffer.addVertex(pose, 0f, 17/16f, 0f).setUv(0f, 0f)
+
+        // TODO: do assembling texture
+        buffer = bufferSource.getBuffer(RENDER_TYPE(ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/block/assembler_side_on.png")))
+        poseStack.pushPose()
+        for (i in 0..3) {
+            val pose = poseStack.last()
+            buffer.addVertex(pose, 1.001f, 1f, 0f).setUv(0f, 0f)
+            buffer.addVertex(pose, 1.001f, 1f, 1f).setUv(1f, 0f)
+            buffer.addVertex(pose, 1.001f, 0f, 1f).setUv(1f, 1f)
+            buffer.addVertex(pose, 1.001f, 0f, 0f).setUv(0f, 1f)
+            poseStack.rotateAround(Axis.YP.rotationDegrees(90f), 0.5f, 0.5f, 0.5f)
+        }
+        poseStack.popPose()
+
+    }
+}

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

@@ -5,12 +5,14 @@ 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
 
@@ -23,9 +25,10 @@ class CaseEntityRenderer(private val context: BlockEntityRendererProvider.Contex
 
     val BLINKTIME: Long = 10 // in ticks
 
-    val RENDER_TYPE = RenderType.create("nc_case", DefaultVertexFormat.POSITION_COLOR, VertexFormat.Mode.QUADS,
+    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_SHADER)
+            .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) {
@@ -38,20 +41,20 @@ class CaseEntityRenderer(private val context: BlockEntityRendererProvider.Contex
         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)
+            else drawLED(buffer, mat.last(), 3F, OFF, packedLight)
-        } else drawLED(buffer, mat.last(), 3F, OFF)
+        } 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)
+        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) {
+    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)
+        buffer.addVertex(mat, width/16F, 0F, 0F).setColor(color).setLight(light)
-        buffer.addVertex(mat, width/16F, 1/16F, 0F).setColor(color)
+        buffer.addVertex(mat, width/16F, 1/16F, 0F).setColor(color).setLight(light)
-        buffer.addVertex(mat, 0F, 1/16F, 0F).setColor(color)
+        buffer.addVertex(mat, 0F, 1/16F, 0F).setColor(color).setLight(light)
-        buffer.addVertex(mat, 0F, 0F, 0F).setColor(color)
+        buffer.addVertex(mat, 0F, 0F, 0F).setColor(color).setLight(light)
     }
 
     private fun handleDirection(facing: Direction, mat: PoseStack) {

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

@@ -0,0 +1,15 @@
+package org.neoflock.neocomputers.entity.render
+
+import net.minecraft.client.renderer.blockentity.BlockEntityRenderers
+import org.neoflock.neocomputers.entity.BlockEntities
+
+object EntityRenderers {
+    fun registerBlockEntityRenderers() {
+        BlockEntityRenderers.register(BlockEntities.SCREEN_ENTITY.get(), ::ScreenEntityRenderer); // TODO: put this in common
+        BlockEntityRenderers.register(BlockEntities.CASE_ENTITY.get(), ::CaseEntityRenderer);
+        BlockEntityRenderers.register(BlockEntities.RELAY_ENTITY.get(), ::RelayEntityRenderer);
+        BlockEntityRenderers.register(BlockEntities.ROBOT_ENTITY.get(), ::RobotEntityRenderer);
+        BlockEntityRenderers.register(BlockEntities.RACK_ENTITY.get(), ::RackEntityRenderer);
+        BlockEntityRenderers.register(BlockEntities.ASSEMBLER_ENTITY.get(), ::AssemblerEntityRenderer)
+    }
+}

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 +1,129 @@
+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.blockentity.ChestRenderer
+import net.minecraft.client.renderer.entity.EntityRenderer
+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.level.block.entity.ChestBlockEntity
+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)
+            .setCullState(RenderStateShard.CullStateShard.NO_CULL)
+            .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
+//        EntityRenderer
+
+        renderTag(ent, Component.literal(ent.name), poseStack, bufferSource, packedLight, partialTick)
+        poseStack.popPose()
+    }
+
+    // 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.enableDepthTest()
+//        RenderSystem.enableBlend()
+//        RenderSystem.depthMask(true)
+
+        context.font.drawInBatch(name, halfwidth.toFloat(), 2f, 0xFFFFFF, false, stack.last().pose(), source, Font.DisplayMode.SEE_THROUGH, alpha, light)
+        (source as MultiBufferSource.BufferSource).endBatch()
+        stack.popPose()
+    }
+
+}

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

@@ -27,6 +27,7 @@ class ScreenEntityRenderer(val context: BlockEntityRendererProvider.Context?) :
                 .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
 

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

@@ -0,0 +1,29 @@
+package org.neoflock.neocomputers.gui.menu
+
+import net.fabricmc.fabric.mixin.item.client.HeldItemRendererMixin
+import net.minecraft.client.gui.MapRenderer
+import net.minecraft.client.renderer.entity.ItemRenderer
+import net.minecraft.world.Container
+import net.minecraft.world.SimpleContainer
+import net.minecraft.world.entity.player.Inventory
+import net.minecraft.world.item.ItemStack
+import org.neoflock.neocomputers.block.Blocks
+import org.neoflock.neocomputers.gui.widget.DynamicSlot
+import org.neoflock.neocomputers.utils.GenericContainer
+import org.neoflock.neocomputers.utils.GenericContainerMenu
+
+class CaseSlot(container: Container, index: Int, x: Int, y: Int) : DynamicSlot(container, index, x, y) {
+    val caseItems = listOf(Blocks.CASE_BLOCK.get().asItem())
+
+    override fun mayPlace(stack: ItemStack): Boolean = stack.item in caseItems
+}
+
+class AssemblerMenu : GenericContainerMenu {
+
+    constructor(id: Int, inv: Inventory) : this(id, inv, SimpleContainer(1))
+    constructor(id: Int, inv: Inventory,  container: Container) : super(Menus.ASSEMBLER_MENU.get(), id, container) {
+        this.addSlot(CaseSlot(container, 0, 12, 12))
+
+        this.addInventoryHotbar(inv, 8, 84)
+    }
+}

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

@@ -10,21 +10,30 @@ 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.AssemblerScreen
 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") { MenuType(::ScreenMenu, FeatureFlagSet.of()) }
     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 ASSEMBLER_MENU: RegistrySupplier<MenuType<AssemblerMenu>> = MENUS.register("assembler_menu") { MenuType(::AssemblerMenu, FeatureFlagSet.of() )}
+//    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)
+        MenuScreens.register(Menus.ASSEMBLER_MENU.get(), ::AssemblerScreen)
     }
 }

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

@@ -0,0 +1,193 @@
+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
+    // i genuinely cant help myself
+    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/render/BufferRenderer.kt

@@ -13,7 +13,7 @@ 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
+class BufferRenderer(private var id: ResourceLocation, var buffer: TextBuffer) { // TODO: NN buffer
     val CHARW = 8
     val CHARH = 16
 
@@ -26,15 +26,11 @@ class BufferRenderer(private var id: ResourceLocation, private var buffer: TextB
         Minecraft.getInstance().textureManager.register(this.id, tex)
     }
 
-    fun dump(path: String) {
+    fun toRGBA(color: Int): Int {
-        image.writeToFile(File(path))
+        // Minecaft lies, its AGBR
-        NeoComputers.LOGGER.info("DUMPED!!!")
+        return java.lang.Integer.reverseBytes((color.toLong() * 256 + 0xFF).toInt())
     }
 
-//    fun toRGBA(color: Int): Int {
-//        return color.shl(8).or(0xFF)
-//    }
-
     fun drawGlyph(x: Int, y: Int, c: Char, fg: Int) {
         var glyph: ArrayList<Byte> = FontProvider.map[c]!!
 
@@ -42,7 +38,7 @@ class BufferRenderer(private var id: ResourceLocation, private var buffer: TextB
             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, 0xFF000000.toInt()+fg)
+                if (pixel > 0) image.setPixelRGBA(x+i, y+j, toRGBA(fg))
             }
         }
     }
@@ -53,7 +49,7 @@ class BufferRenderer(private var id: ResourceLocation, private var buffer: TextB
                 var char: GPUChar = buffer.get(i, j)
                 var x = i*CHARW
                 var y = j*CHARH
-                image.fillRect(x, y, CHARW, CHARH, (0xFF000000+char.bg).toInt())
+                image.fillRect(x, y, CHARW, CHARH, toRGBA(char.bg))
                 if (char.c != ' ' && char.c != '\u0000') drawGlyph(x, y, char.c, char.fg) 
             }
         }

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

@@ -0,0 +1,39 @@
+package org.neoflock.neocomputers.gui.screen
+
+import io.netty.buffer.Unpooled
+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 org.neoflock.neocomputers.NeoComputers
+import org.neoflock.neocomputers.gui.menu.AssemblerMenu
+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.network.NodeSynchronizer
+import org.neoflock.neocomputers.utils.GenericContainerScreen
+
+class AssemblerScreen : GenericContainerScreen<AssemblerMenu> {
+    private var btn: ImagerButton? = null
+    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")
+
+    constructor(abstractContainerMenu: AssemblerMenu, inventory: Inventory, component: Component) : super(abstractContainerMenu, inventory, component) {
+        btn = ImagerButton(
+            8, 104,
+            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
+    }
+}

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

@@ -11,7 +11,7 @@ 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.block.NodeSynchronizer
+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
@@ -26,6 +26,7 @@ class CaseScreen : GenericContainerScreen<CaseMenu> {
 
     private var btn: ImagerButton? = null
     override fun shouldCenterTitle(): Boolean = false
+//    override fun findMenuTexture(): ResourceLocation = BG
 
     var isOn = false
     var lastError: String? = null
@@ -70,14 +71,14 @@ class CaseScreen : GenericContainerScreen<CaseMenu> {
         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, maxEnergy).withStyle(if(components <= maxComponents) ChatFormatting.WHITE else ChatFormatting.RED))
+            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(
-            15, 15,
+            71, 33,
             18, 18,
             ButtonSprites(BTN, 18, 18, 36, 36)
         ) {
@@ -85,17 +86,11 @@ class CaseScreen : GenericContainerScreen<CaseMenu> {
             buf.writeByte(if(isOn) 0x02 else 0x01)
             NodeSynchronizer.sendScreenInteraction(buf)
         }
-//        addRenderableWidget(btn!!)
-    }
-    override fun renderBg(guiGraphics: GuiGraphics, f: Float, i: Int, j: Int) {
-        super.renderBg(guiGraphics, f, i ,j)
-        val relX = (this.width - this.imageWidth) / 2
-        val relY = (this.height - this.imageHeight) / 2
 
-        btn!!.x = relX+70
+        addWidget(btn!!)
-        btn!!.y = relY+33
+    }
-        btn!!.render(guiGraphics, i, j, f) // minecraft SUCKSSS
+    override fun renderbg(guiGraphics: GuiGraphics, f: Float, i: Int, j: Int) {
-        guiGraphics.blit(PCB, relX, relY, 0, 0, this.imageWidth, this.imageHeight)
+        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) {
@@ -105,13 +100,4 @@ class CaseScreen : GenericContainerScreen<CaseMenu> {
         }
     }
 
-    override fun mouseClicked(mouseX: Double, mouseY: Double, button: Int): Boolean { // todo: make a better widget system than mojang, practically not even using the fact it's a widget atp
-        if (button == 0 && btn!!.isHovered) {
-            btn!!.playDownSound(Minecraft.getInstance().soundManager)
-            btn!!.onClick(mouseX, mouseY)
-            return true
-        }
-        return super.mouseClicked(mouseX, mouseY, button)
-    }
-
 }

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

@@ -24,6 +24,8 @@ class ScreenScreen : GenericContainerScreen<ScreenMenu>{
 
     var textBuf = TextBuffer(0, 0)
 
+    override fun shouldCenterTitle(): Boolean = false
+
     override fun processScreenStatePacket(buf: FriendlyByteBuf) {
         super.processScreenStatePacket(buf)
         textBuf.decodeContents(buf)
@@ -44,6 +46,8 @@ class ScreenScreen : GenericContainerScreen<ScreenMenu>{
         }
     }
 
+    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

@@ -6,11 +6,9 @@ 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.Item
 import net.minecraft.world.item.ItemStack
-import net.minecraft.world.level.ItemLike
 import org.neoflock.neocomputers.NeoComputers
-import org.neoflock.neocomputers.entity.MachineEntity
+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
@@ -85,14 +83,11 @@ data class ComponentSlotRequirement(val tier: Int, val role: String) {
 
 // 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: MachineEntity?, val requirement: ComponentSlotRequirement): DynamicSlot(container, slot, x, y) {
+class ComponentSlot(container: Container, slot: Int, x: Int, y: Int, val machine: ComponentUser?, var requirement: ComponentSlotRequirement): DynamicSlot(container, slot, x, y) {
-    override fun draw(graphics: GuiGraphics, relX: Int, relY: Int, mouseX: Int, mouseY: Int) {
+    override fun draw(graphics: GuiGraphics, mouseX: Int, mouseY: Int) {
-        super.draw(graphics, relX, relY, mouseX, mouseY)
+        super.draw(graphics, mouseX, mouseY)
         if(!hasItem()) {
-            RenderSystem.enableBlend()
+            drawQuad(graphics, ComponentRoles.getTextureFor(requirement.role), x - 1, y - 1, 18, 18, 0F, 0F, 15F, 15F)
-            RenderSystem.setShaderTexture(0, ComponentRoles.getTextureFor(requirement.role))
-            RenderSystem.setShader { GameRenderer.getPositionTexShader() }
-            drawQuad(relX + x - 1, relY + y - 1, 18, 18, 0F, 0F, 15F, 15F)
             if (requirement.tier > 0) {
                 RenderSystem.setShaderTexture(
                     0,
@@ -101,10 +96,11 @@ class ComponentSlot(container: Container, slot: Int, x: Int, y: Int, val machine
                         "textures/gui/slots/tier${requirement.tier - 1}.png"
                     )
                 )
-                RenderSystem.setShader { GameRenderer.getPositionTexShader() }
+                val tex = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/gui/slots/tier${requirement.tier - 1}.png")
-                drawQuad(relX + x - 1, relY + y - 1, 18, 18, 0F, 0F, 15F, 15F)
+//                RenderSystem.setShader { GameRenderer.getPositionTexShader() }
+                drawQuad(graphics, tex, x - 1, y - 1, 18, 18, 0F, 0F, 15F, 15F)
             }
-            RenderSystem.disableBlend()
+//            RenderSystem.disableBlend()
         }
     }
 

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

@@ -5,41 +5,43 @@ 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) {
+open class DynamicSlot(container: Container, slot: Int, x: Int, y: Int, var active: Boolean = true) : Slot(container, slot, x, y) {
 
     val BACKGROUND: ResourceLocation = ResourceLocation.fromNamespaceAndPath(NeoComputers.MODID, "textures/gui/slots/slot.png")
-
+    val RENDER_TYPE = { r: ResourceLocation ->
-    open fun draw(graphics: GuiGraphics, relX: Int, relY: Int, mouseX: Int, mouseY: Int) {
+        RenderType.create("nc_gui_slot", DefaultVertexFormat.POSITION_TEX, VertexFormat.Mode.QUADS, RenderType.TRANSIENT_BUFFER_SIZE, RenderType.CompositeState.builder()
-        RenderSystem.enableBlend() // background
+            .setShaderState(ShaderStateShard.POSITION_TEX_SHADER)
-        RenderSystem.setShaderTexture(0, BACKGROUND)
+            .setTextureState(RenderStateShard.TextureStateShard(r, false, false))
-        RenderSystem.setShader { GameRenderer.getPositionTexShader() }
+            .setTransparencyState(RenderStateShard.TransparencyStateShard.TRANSLUCENT_TRANSPARENCY)
-        drawQuad(relX+x-1, relY+y-1, 18, 18, 0F, 0F, 15F, 15F)
+            .createCompositeState(false))
-        RenderSystem.disableBlend()
     }
 
-    fun drawQuad(x: Int, y: Int, width: Int, height: Int, u1: Float, v1: Float, u2: Float, v2: Float) {
+    open fun draw(graphics: GuiGraphics, mouseX: Int, mouseY: Int) {
-        var t: Tesselator = Tesselator.getInstance()
+        drawQuad(graphics, BACKGROUND, x-1, y-1, 18, 18, 0F, 0F, 15F, 15F)
-        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()!!)
     }
 
-    // private fun renderSlotHighlight(guiGraphics: GuiGraphics, x: Int, y: Int,  k: Int) { // im not sure but i tihnk i copied this from mc source code
+    fun drawQuad(guiGraphics: GuiGraphics, tex: ResourceLocation, x: Int, y: Int, width: Int, height: Int, u1: Float, v1: Float, u2: Float, v2: Float) {
-    //     guiGraphics.fillGradient(RenderType.guiOverlay(), x, y, x + 16, y + 16, -2130706433, -2130706433, k);
+        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)
+    }
+
+    override fun isActive() = active
 
 }

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/item/CBUSItem.kt

@@ -2,9 +2,8 @@ package org.neoflock.neocomputers.item
 
 import net.minecraft.world.item.Item
 import net.minecraft.world.item.ItemStack
-import org.neoflock.neocomputers.entity.MachineEntity
+import org.neoflock.neocomputers.entity.ComponentUser
 import org.neoflock.neocomputers.gui.widget.ComponentRoles
-import org.neoflock.neocomputers.network.Networking
 
 open class CBUSItem(val tier: Int, val maxComponents: Int): Item(Item.Properties()), ComponentItem {
     override fun getComponentRoles(itemStack: ItemStack) = setOf(ComponentRoles.BUS)
@@ -13,7 +12,7 @@ open class CBUSItem(val tier: Int, val maxComponents: Int): Item(Item.Properties
 
     override fun getComponentCapacity(itemStack: ItemStack) = maxComponents
 
-    override fun toComponentNode(itemStack: ItemStack, machine: MachineEntity?) = null
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
 }
 class CBUS0: CBUSItem(1, 8)
 class CBUS1: CBUSItem(2, 12)

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

@@ -2,11 +2,10 @@ package org.neoflock.neocomputers.item
 
 import net.minecraft.world.item.Item
 import net.minecraft.world.item.ItemStack
-import org.neoflock.neocomputers.entity.MachineEntity
+import org.neoflock.neocomputers.entity.ComponentUser
 import org.neoflock.neocomputers.gui.widget.ComponentRoles
-import org.neoflock.neocomputers.network.Networking
 
-open class CPUItem(val tier: Int, val maxComponents: Int): Item(Item.Properties()), ComponentItem {
+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
@@ -15,7 +14,9 @@ open class CPUItem(val tier: Int, val maxComponents: Int): Item(Item.Properties(
 
     override fun getArchitecturesProvided(itemStack: ItemStack): Set<String> = setOf("Lua 5.3")
 
-    override fun toComponentNode(itemStack: ItemStack, machine: MachineEntity?) = null
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
+
+    override fun getRelayInterval(itemStack: ItemStack) = 4 / tier
 }
 
 class CPU0: CPUItem(1, 8)

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

@@ -1,6 +1,7 @@
 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
@@ -18,7 +19,7 @@ interface ComponentItem {
     fun getArchitecturesProvided(itemStack: ItemStack): Set<String> = setOf()
 
     // Component placed, node must now exist
-    fun whenComponentPlaced(itemStack: ItemStack, machine: MachineEntity?, newRole: String) {
+    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
@@ -27,14 +28,14 @@ interface ComponentItem {
     }
 
     // Component taken, and thus removed
-    fun whenComponentTaken(itemStack: ItemStack, machine: MachineEntity?, previousRole: String) {
+    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: MachineEntity?): DeviceNode?
+    fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?): DeviceNode?
 
     // Gets the node associated to an item, if it exists
     fun getComponentNode(itemStack: ItemStack): DeviceNode? {
@@ -52,3 +53,11 @@ interface ComponentItem {
 
     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

@@ -4,9 +4,8 @@ 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.MachineEntity
+import org.neoflock.neocomputers.entity.ComponentUser
 import org.neoflock.neocomputers.gui.widget.ComponentRoles
-import org.neoflock.neocomputers.network.Networking
 import org.neoflock.neocomputers.utils.Formatting
 
 // Note: We'll prob want to replace them with NN component configs later on
@@ -16,13 +15,13 @@ open class DataCard(val tier: Int, val limit: Long): Item(Properties()), Compone
 
     override fun getComponentTier(itemStack: ItemStack): Int = tier
 
-    override fun whenComponentPlaced(itemStack: ItemStack, machine: MachineEntity?, newRole: String) {
+    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: MachineEntity?) = null
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
 
     override fun appendHoverText(
         itemStack: ItemStack,

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

@@ -4,9 +4,8 @@ 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.MachineEntity
+import org.neoflock.neocomputers.entity.ComponentUser
 import org.neoflock.neocomputers.gui.widget.ComponentRoles
-import org.neoflock.neocomputers.network.Networking
 import org.neoflock.neocomputers.utils.Formatting
 import java.nio.ByteBuffer
 
@@ -27,12 +26,12 @@ open class EEPROMItem(val tier: Int, val codeCapacity: Int, val dataCapacity: In
 
     override fun getComponentCapacity(itemStack: ItemStack): Int = 0
 
-    override fun whenComponentPlaced(itemStack: ItemStack, machine: MachineEntity?, newRole: String) {
+    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: MachineEntity?) = null
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
 
     override fun appendHoverText(
         itemStack: ItemStack,

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

@@ -4,9 +4,8 @@ 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.MachineEntity
+import org.neoflock.neocomputers.entity.ComponentUser
 import org.neoflock.neocomputers.gui.widget.ComponentRoles
-import org.neoflock.neocomputers.network.Networking
 
 // Note: We'll prob want to replace them with NN component configs later on
 
@@ -15,13 +14,13 @@ open class GPUCard(val tier: Int, val vram: Long): Item(Properties()), Component
 
     override fun getComponentTier(itemStack: ItemStack): Int = tier
 
-    override fun whenComponentPlaced(itemStack: ItemStack, machine: MachineEntity?, newRole: String) {
+    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: MachineEntity?) = null
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
 
     override fun appendHoverText(
         itemStack: ItemStack,

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

@@ -4,17 +4,15 @@ 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.MachineEntity
+import org.neoflock.neocomputers.entity.ComponentUser
 import org.neoflock.neocomputers.gui.widget.ComponentRoles
-import org.neoflock.neocomputers.network.Networking
 import org.neoflock.neocomputers.utils.Formatting
-import java.util.UUID
 
 fun getDiskProperties(): Item.Properties = Item.Properties()
     .component(DataComponents.LABEL, "")
     .component(DataComponents.READONLY, false)
 
-open class HardDiskItem(val tier: Int, val capacity: Long): Item(getDiskProperties()), ComponentItem {
+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
@@ -23,12 +21,12 @@ open class HardDiskItem(val tier: Int, val capacity: Long): Item(getDiskProperti
 
     override fun getComponentCapacity(itemStack: ItemStack): Int = 0
 
-    override fun whenComponentPlaced(itemStack: ItemStack, machine: MachineEntity?, newRole: String) {
+    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: MachineEntity?) = null
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
 
     override fun appendHoverText(
         itemStack: ItemStack,
@@ -56,8 +54,10 @@ open class HardDiskItem(val tier: Int, val capacity: Long): Item(getDiskProperti
         }
         return super.getName(itemStack)
     }
+
+    override fun getRelayQueueSize(itemStack: ItemStack) = relayQueueSize
 }
 
-class HardDisk0: HardDiskItem(1, 1 shl 20)
+class HardDisk0: HardDiskItem(1, 1 shl 20, 30)
-class HardDisk1: HardDiskItem(2, 2 shl 20)
+class HardDisk1: HardDiskItem(2, 2 shl 20, 40)
-class HardDisk2: HardDiskItem(3, 4 shl 20)
+class HardDisk2: HardDiskItem(3, 4 shl 20, 50)

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

@@ -4,23 +4,21 @@ 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.MachineEntity
+import org.neoflock.neocomputers.entity.ComponentUser
 import org.neoflock.neocomputers.gui.widget.ComponentRoles
-import org.neoflock.neocomputers.network.Networking
-import org.neoflock.neocomputers.utils.Formatting
 
 class InternetCard: Item(Item.Properties()), ComponentItem {
     override fun getComponentRoles(itemStack: ItemStack): Set<String> = setOf(ComponentRoles.CARD, ComponentRoles.INET)
 
-    override fun getComponentTier(itemStack: ItemStack): Int = 1
+    override fun getComponentTier(itemStack: ItemStack): Int = 2
 
-    override fun whenComponentPlaced(itemStack: ItemStack, machine: MachineEntity?, newRole: String) {
+    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: MachineEntity?) = null
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
 
     override fun appendHoverText(
         itemStack: ItemStack,

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

@@ -46,4 +46,6 @@ object Items {
 
     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

@@ -4,13 +4,11 @@ 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.MachineEntity
+import org.neoflock.neocomputers.entity.ComponentUser
 import org.neoflock.neocomputers.gui.widget.ComponentRoles
-import org.neoflock.neocomputers.network.DeviceNode
-import org.neoflock.neocomputers.network.Networking
 import org.neoflock.neocomputers.utils.Formatting
 
-open class MemoryItem(val tier: Int, val capacity: Int): Item(Item.Properties().`arch$tab`(Tabs.TAB)), ComponentItem {
+open class MemoryItem(val tier: Int, val capacity: Int, val relayBuf: Int): Item(Item.Properties().`arch$tab`(Tabs.TAB)), RelayUpgrade {
     override fun getComponentRoles(itemStack: ItemStack) = setOf(ComponentRoles.MEMORY)
 
     override fun getComponentTier(itemStack: ItemStack): Int = tier
@@ -20,7 +18,7 @@ open class MemoryItem(val tier: Int, val capacity: Int): Item(Item.Properties().
     override fun getComponentCapacity(itemStack: ItemStack): Int = 0
 
     // no node for memory
-    override fun toComponentNode(itemStack: ItemStack, machine: MachineEntity?) = null
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
 
     override fun appendHoverText(
         itemStack: ItemStack,
@@ -33,11 +31,13 @@ open class MemoryItem(val tier: Int, val capacity: Int): Item(Item.Properties().
         }
         super.appendHoverText(itemStack, tooltipContext, list, tooltipFlag)
     }
+
+    override fun getRelayBufferSize(itemStack: ItemStack) = relayBuf
 }
 
-class MemoryTier1(): MemoryItem(1, 192 shl 10)
+class MemoryTier1(): MemoryItem(1, 192 shl 10, 2)
-class MemoryTier1_5(): MemoryItem(1, 256 shl 10)
+class MemoryTier1_5(): MemoryItem(1, 256 shl 10, 3)
-class MemoryTier2(): MemoryItem(2, 384 shl 10)
+class MemoryTier2(): MemoryItem(2, 384 shl 10, 4)
-class MemoryTier2_5(): MemoryItem(2, 512 shl 10)
+class MemoryTier2_5(): MemoryItem(2, 512 shl 10, 5)
-class MemoryTier3(): MemoryItem(3, 768 shl 10)
+class MemoryTier3(): MemoryItem(3, 768 shl 10, 6)
-class MemoryTier3_5(): MemoryItem(3, 1 shl 20)
+class MemoryTier3_5(): MemoryItem(3, 1 shl 20, 7)

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

@@ -4,22 +4,21 @@ 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.MachineEntity
+import org.neoflock.neocomputers.entity.ComponentUser
 import org.neoflock.neocomputers.gui.widget.ComponentRoles
-import org.neoflock.neocomputers.network.Networking
 
 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: MachineEntity?, newRole: String) {
+    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: MachineEntity?) = null
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
 
     override fun appendHoverText(
         itemStack: ItemStack,

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

@@ -4,9 +4,8 @@ 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.MachineEntity
+import org.neoflock.neocomputers.entity.ComponentUser
 import org.neoflock.neocomputers.gui.widget.ComponentRoles
-import org.neoflock.neocomputers.network.Networking
 
 // Note: We'll prob want to replace them with NN component configs later on
 
@@ -15,13 +14,13 @@ open class RedstoneCard(val tier: Int): Item(Properties()), ComponentItem {
 
     override fun getComponentTier(itemStack: ItemStack): Int = tier
 
-    override fun whenComponentPlaced(itemStack: ItemStack, machine: MachineEntity?, newRole: String) {
+    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: MachineEntity?) = null
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
 
     override fun appendHoverText(
         itemStack: ItemStack,

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

@@ -0,0 +1,27 @@
+package org.neoflock.neocomputers.item
+
+import com.mojang.blaze3d.vertex.PoseStack
+import net.minecraft.client.renderer.MultiBufferSource
+import net.minecraft.client.renderer.entity.ItemRenderer
+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

@@ -23,38 +23,9 @@ object Tabs {
                 ItemStack(Items.MEM0.get())
             }
             builder.displayItems { parameters, output ->
-                // TODO: get rid of arch$tab and this shi and replace with loop over items registry
+                Items.ITEMS.forEach {
-                output.accept(ItemStack(Items.CPU0.get()))
+                    output.accept(ItemStack(it.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()))
 
                 // Criminal black magic to put LuaBIOS EEPROM in the tabs
                 do {

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

@@ -4,9 +4,8 @@ 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.MachineEntity
+import org.neoflock.neocomputers.entity.ComponentUser
 import org.neoflock.neocomputers.gui.widget.ComponentRoles
-import org.neoflock.neocomputers.network.Networking
 
 class TunnelCard: Item(Properties().component(DataComponents.TUNNEL_CHANNEL, "creative")), ComponentItem {
     // yes, we're counting TUNNEL as a conventional networking card
@@ -14,13 +13,13 @@ class TunnelCard: Item(Properties().component(DataComponents.TUNNEL_CHANNEL, "cr
 
     override fun getComponentTier(itemStack: ItemStack): Int = 3
 
-    override fun whenComponentPlaced(itemStack: ItemStack, machine: MachineEntity?, newRole: String) {
+    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: MachineEntity?) = null
+    override fun toComponentNode(itemStack: ItemStack, machine: ComponentUser?) = null
 
     override fun appendHoverText(
         itemStack: ItemStack,

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

@@ -1,7 +1,9 @@
 package org.neoflock.neocomputers.network
 
-import net.minecraft.core.BlockPos
 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
@@ -9,6 +11,9 @@ 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
@@ -145,77 +150,84 @@ open class DeviceNode(_address: UUID? = null) {
 
     fun getReachable(): Set<DeviceNode> {
         if(reachableCache == null) {
-            reachableCache = computeReachable();
+            reachableCache = computeReachable()
         }
-        return reachableCache!!;
+        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();
+            return setOf()
         }
-        if(reachability == Visibility.DIRECT) {
+        if(reachability == Visibility.SOME) {
-            return connections.minus(this);
+            return getPreferredFew()
         }
         if(reachability == Visibility.NETWORK) {
             // absolute cinema
-            val working = HashSet<DeviceNode>();
+            val working = HashSet<DeviceNode>()
-            val pending = mutableListOf(this);
+            val pending = mutableListOf(this)
-            var iterCount = 0;
+            var iterCount = 0
             while(iterCount < maxHopCount && pending.isNotEmpty()) {
-                iterCount++;
+                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.DIRECT) {
+                } else if(subnode.reachability == Visibility.SOME) {
-                    working.addAll(subnode.connections)
+                    pending.addAll(subnode.getPreferredFew())
                 }
             }
             // cannot send to itself!
-            working.remove(this);
+            working.remove(this)
-            return working;
+            return working
         }
-        throw NotImplementedError("visibility not implemented");
+        throw NotImplementedError("visibility not implemented")
     }
 
     fun connectTo(other: DeviceNode) {
-        this.directConnectTo(other);
+        this.directConnectTo(other)
-        other.directConnectTo(this);
+        other.directConnectTo(this)
     }
 
     fun disconnectFrom(other: DeviceNode) {
-        this.directDisconnectFrom(other);
+        this.directDisconnectFrom(other)
-        other.directDisconnectFrom(this);
+        other.directDisconnectFrom(this)
     }
 
     fun directConnectTo(other: DeviceNode) {
-        if(other == this) return;
+        if(other == this) return
-        if(other in connections) return;
+        if(other in connections) return
-        connections.add(other);
+        connections.add(other)
-        this.onConnect(other);
+        this.onConnect(other)
+        invalidateReachableCache()
     }
 
     fun directDisconnectFrom(other: DeviceNode) {
-        if(other !in connections) return;
+        if(other !in connections) return
-        connections.remove(other);
+        connections.remove(other)
-        this.onDisconnect(other);
+        this.onDisconnect(other)
+        invalidateReachableCache()
     }
 
     // Network synchronization with the NodeSynchronizer
     // TODO: process shi
 
-    var outOfSync = true
+    var outOfSync = false
     fun markChanged() {
         outOfSync = true
     }
 
-    open fun encodeScreenData(buf: FriendlyByteBuf) {}
+    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
@@ -223,13 +235,22 @@ open class DeviceNode(_address: UUID? = null) {
 
     // 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 getRange(): Double
+    abstract fun getEndpointRange(): Double
-    abstract fun getDimension(): Int
+    abstract fun getEndpointDimension(): Int
-    abstract fun getPosition(): BlockPos
+    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

@@ -1,6 +1,7 @@
 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
@@ -27,8 +28,8 @@ object Networking {
     enum class Visibility {
         // only it can see itself
         NONE,
-        // can only see its direct connections
+        // some, as determined by getPreferredFew()
-        DIRECT,
+        SOME,
         // Can see everything network-wide
         NETWORK,
     }
@@ -36,8 +37,9 @@ object Networking {
 
     abstract class Message(val sender: DeviceNode)
 
-    class ClassicPacket(sender: DeviceNode, val src: String, val dst: String, val port: Int, val data: List<Any>, val hopCount: Int) : Message(sender) {
+    // null dst means broadcast
-        fun hop() = ClassicPacket(sender, src, dst, port, data, hopCount + 1);
+    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
@@ -50,30 +52,26 @@ object Networking {
 
     // node may differ from message.sender in the case of relays,
     // as they might have DIRECT reachability but
-    fun emitMessage(deviceNode: DeviceNode, message: Message) {
+    fun emitMessage(deviceNode: DeviceNode, message: Message, exclude: Set<DeviceNode> = setOf()) {
-        deviceNode.getReachable().forEach { it.received(message) }
+        deviceNode.getReachable().forEach { if(it !in exclude) it.received(message) }
     }
 
-    fun computeRangeAllowedByHardness(src: BlockPos, dst: BlockPos): Double {
+    fun computeRangeAllowedByHardness(level: Level, src: BlockPos, dst: BlockPos): Double {
         return Double.POSITIVE_INFINITY // TODO: math
     }
 
-    fun distanceBetween(a: BlockPos, b: BlockPos): Double {
-        return sqrt((a.x - b.x + a.y - b.y + a.z - b.z).toDouble().pow(2.0));
-    }
-
     fun emitWirelessMessage(starter: WirelessEndpoint, range: Double, message: Message) {
-        val startPos = starter.getPosition();
+        val startPos = starter.getEndpointPosition()
-        val startDim = starter.getDimension();
+        val startDim = starter.getEndpointDimension()
-        val range = starter.getRange();
+        val level = starter.getEndpointLevel()
         wirelessNodes.get().forEach {
-            if(it.getDimension() != startDim) return;
+            if(it.getEndpointDimension() != startDim) return
-            val pos = it.getPosition();
+            val pos = it.getEndpointPosition()
-            val d = distanceBetween(startPos, pos);
+            val d = startPos.distanceTo(pos)
-            var trueRange = min(it.getRange(), range);
+            var trueRange = min(it.getEndpointRange(), range)
-            trueRange = min(trueRange, computeRangeAllowedByHardness(startPos, pos));
+            trueRange = min(trueRange, computeRangeAllowedByHardness(level, BlockPos.containing(startPos), BlockPos.containing(pos)))
-            if(d > trueRange) return;
+            if(d > trueRange) return
-            it.receiveWireless(message, starter);
+            it.receiveWireless(message, starter)
         }
     }
 
@@ -85,12 +83,14 @@ object Networking {
     fun getNode(address: UUID): DeviceNode? = allNodes.get()[address]
 
     // TODO: use setter, more convenient
-    fun changeNodeAddress(deviceNode: DeviceNode, address: UUID) {
+    fun changeNodeAddress(deviceNode: DeviceNode, address: UUID): Boolean {
-        if(deviceNode.address.equals(address)) return
+        if(deviceNode.address.equals(address)) return false
-        if(deviceNode.address !in allNodes.get()) return
+        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) {
@@ -103,12 +103,17 @@ object Networking {
         allNodes.get().forEach { it.value.onNodeAdded(deviceNode) }
     }
 
-    fun addNodes(vararg deviceNodes: 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 {
@@ -121,10 +126,14 @@ object Networking {
         }
     }
 
-    fun removeNodes(vararg deviceNodes: 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) {

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

@@ -1,42 +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.fabricmc.fabric.api.transfer.v1.transaction.TransactionContext
-import org.neoflock.neocomputers.block.NodeBlockEntity
+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: NodeBlockEntity> registerPowerBlockEntity(blockEntityType: BlockEntityType<T>) {
+    fun<T: DeviceBlockEntity> registerPowerDevice(blockEntityType: BlockEntityType<T>) {
         //? if fabric {
-        EnergyStorage.SIDED.registerForBlockEntity({
+        /*EnergyStorage.SIDED.registerForBlockEntity({
-            entity, dir -> object : EnergyStorage {
+                // TODO: as this is currently written, if the node instance changes and the mod cached the conversion, we're boned. Consider fixing it.
-                override fun getAmount() = entity.deviceNode.energy
+                entity, dir ->
-                override fun getCapacity() = entity.deviceNode.energyCapacity
+                val node = entity.getNodeFromSide(dir ?: Direction.UP)
-                override fun supportsExtraction() = entity.deviceNode.powerRole != PowerRole.CONSUMER && entity.deviceNode.energyCapacity > 0
+                if(node == null) null else object : EnergyStorage {
-                override fun supportsInsertion() = entity.deviceNode.powerRole != PowerRole.GENERATOR
+                    override fun getAmount() = node.energy
-                override fun extract(maxAmount: Long, transaction: TransactionContext?): Long {
+                    override fun getCapacity() = node.energyCapacity
-                    if(entity.deviceNode.powerRole == PowerRole.CONSUMER) return 0
+                    override fun supportsExtraction() = node.powerRole != PowerRole.CONSUMER && node.energyCapacity > 0
-                    val taken = entity.deviceNode.withdrawEnergy(maxAmount)
+                    override fun supportsInsertion() = node.powerRole != PowerRole.GENERATOR
-                    transaction?.addCloseCallback {
+                    override fun extract(maxAmount: Long, transaction: TransactionContext?): Long {
-                        ctx, res -> if(res.wasAborted() || !res.wasCommitted()) entity.deviceNode.giveEnergy(taken)
+                        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
                     }
-                    return taken
+                    override fun insert(maxAmount: Long, transaction: TransactionContext?): Long {
-                }
+                        if(node.powerRole == PowerRole.GENERATOR) return 0
-                override fun insert(maxAmount: Long, transaction: TransactionContext?): Long {
+                        val given = node.giveEnergy(maxAmount)
-                    if(entity.deviceNode.powerRole == PowerRole.GENERATOR) return 0
+                        transaction?.addCloseCallback { ctx, res ->
-                    val given = entity.deviceNode.giveEnergy(maxAmount)
+                            if (res.wasAborted() || !res.wasCommitted()) node.withdrawEnergy(given)
-                    transaction?.addCloseCallback { ctx, res ->
+                        }
-                        if (res.wasAborted() || !res.wasCommitted()) entity.deviceNode.withdrawEnergy(given)
+                        return given
                     }
-                    return given
                 }
-            }
         }, blockEntityType);
-        //?}
+        *///?}
     }
 }

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

@@ -1,9 +1,16 @@
 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
@@ -68,7 +75,7 @@ abstract class GenericContainerMenu(menuType: MenuType<*>, id: Int, var containe
         // 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, 84 + i * 18))
+                this.addSlot(Slot(inventory, j + i * 9 + 9, 8 + j * 18, y + i * 18))
             }
         }
 
@@ -128,6 +135,15 @@ abstract class GenericContainerScreen<T: GenericContainerMenu>(menu: T, inventor
     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()
 
@@ -138,24 +154,50 @@ abstract class GenericContainerScreen<T: GenericContainerMenu>(menu: T, inventor
         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, imageX, imageY, 0, 0, imageWidth, imageHeight)
+        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) {
-                // NeoComputers.LOGGER.info("slot")
+                slot.draw(guiGraphics, i-cx, j-cy)
-                slot.draw(guiGraphics, cx, cy, i, j)
             }
         }
+
+        guiGraphics.pose().popPose()
     }
 
-    open fun renderCustomOverlay(graphics: GuiGraphics, mouseX: Int, mouseY: Int, blend: Float) {
+    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)
-        renderCustomOverlay(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

@@ -1,14 +1,73 @@
 package org.neoflock.neocomputers.utils
 
+import com.mojang.blaze3d.platform.NativeImage
+import net.minecraft.client.Minecraft
+import net.minecraft.client.renderer.texture.DynamicTexture
 import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.util.ResourceLocationPattern
+import org.neoflock.neocomputers.gui.widget.DynamicSlot
+import kotlin.experimental.and
 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 CHARW = 8
+//    val CHARH = 16
+//
+//    val texwidth: Int
+//        get() = width*CHARW
+//
+//    val texheight: Int
+//        get() = height*CHARH
+//
+//    var image = NativeImage(texwidth, texheight, true)
+//    var tex = DynamicTexture(image)
+
+
     val blank = GPUChar(' ')
     var buf = Array(width*height) { blank }
+//    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..<width) {
+//            for (j in 0..<height) {
+//                var char: GPUChar = buf[j*height+i]
+//                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()
+//    }
 
     fun encodeContents(buf: FriendlyByteBuf) {
         // 0x01 means set fg, 0x02 means set bg,
@@ -75,16 +134,19 @@ class TextBuffer(var width: Int, var height: Int) {
 
     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) {
+    fun _set(x: Int, y: Int, pixel: GPUChar) {
         if(!inBounds(x, y)) return
         buf[x+y*width] = pixel
+//        image.fillRect(x, y, CHARW, CHARH, toRGBA(pixel.bg))
+//        if (pixel.c != ' ' && pixel.c != '\u0000') drawGlyph(x, y, pixel.c, pixel.fg)
     }
     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))
+            _set(cx, cy, GPUChar(c, fg, bg))
         }
+//        tex.upload()
     }
     fun fill(x: Int, y: Int, w: Int, h: Int, pixel: GPUChar = blank) {
         // turn it into values we can fw
@@ -92,8 +154,9 @@ class TextBuffer(var width: Int, var height: Int) {
         val fh = min(h, height)
         for(py in y..<y+fh) {
             for (px in x..<x + fw) {
-                set(px, py, pixel)
+                _set(px, py, pixel)
             }
         }
+//        tex.upload()
     }
 }

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

@@ -0,0 +1,5 @@
+{
+  "variants": {
+    "": { "model":  "neocomputers:block/assembler" }
+  }
+}

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

@@ -0,0 +1,5 @@
+{
+  "variants": {
+    "": { "model": "neocomputers:block/rack"}
+  }
+}

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

@@ -0,0 +1,7 @@
+{
+  "variants": {
+    "": {
+      "model": "neocomputers:block/relay"
+    }
+  }
+}

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

@@ -0,0 +1,7 @@
+{
+  "variants": {
+    "": {
+      "model": "neocomputers:block/robot"
+    }
+  }
+}

src/main/resources/assets/neocomputers/lang/en_us.json

@@ -10,6 +10,9 @@
   "block.neocomputers.capacitor": "Small Capacitor",
   "block.neocomputers.capacitor2": "Medium Capacitor",
   "block.neocomputers.capacitor3": "Large Capacitor",
+  "block.neocomputers.case": "Case (Untiered)",
+  "block.neocomputers.cable": "Cable",
+  "block.neocomputers.relay": "Relay",
   "item.neocomputers.eeprom0": "EEPROM (Tier 1)",
   "item.neocomputers.cpu0": "CPU (Tier 1)",
   "item.neocomputers.cpu1": "CPU (Tier 2)",

src/main/resources/assets/neocomputers/lang/fr_fr.json

@@ -0,0 +1,67 @@
+{
+  "neocomputers.confirm": "Confirmer",
+  "neocomputers.cancel": "Annuler",
+  "block.neocomputers.combustgen": "Générateur à combustion",
+  "block.neocomputers.redio": "Controleur de redstone",
+  "item.neocomputers.redio0": "Carte redstone (niveau 1)",
+  "item.neocomputers.redio1": "Carte redstone (niveau 2)",
+  "block.neocomputers.solargen": "Panneau solaire",
+  "block.neocomputers.screen": "Écran (sans niveau)",
+  "block.neocomputers.capacitor": "Petit condensateur",
+  "block.neocomputers.capacitor2": "Condensateur moyen",
+  "block.neocomputers.capacitor3": "Grand condensateur",
+  "block.neocomputers.case": "Boîtier (sans niveau)",
+  "block.neocomputers.cable": "Cable",
+  "block.neocomputers.relay": "Relais",
+  "item.neocomputers.eeprom0": "EEPROM (niveau 1)",
+  "item.neocomputers.cpu0": "Processeur (niveau 1)",
+  "item.neocomputers.cpu1": "Processeur (niveau 2)",
+  "item.neocomputers.cpu2": "Processeur (niveau 3)",
+  "item.neocomputers.cbus0": "Bus informatique (niveau 1)",
+  "item.neocomputers.cbus1": "Bus informatique (niveau 2)",
+  "item.neocomputers.cbus2": "Bus informatique (niveau 3)",
+  "item.neocomputers.cbus_creative": "Bus informatique (créatif)",
+  "item.neocomputers.memory0": "Mémoire (niveau 1)",
+  "item.neocomputers.memory1": "Mémoire (niveau 1,5)",
+  "item.neocomputers.memory2": "Mémoire (niveau 2)",
+  "item.neocomputers.memory3": "Mémoire (niveau 2,5)",
+  "item.neocomputers.memory4": "Mémoire (niveau 3)",
+  "item.neocomputers.memory5": "Mémoire (niveau 3,5)",
+  "item.neocomputers.inet": "Carte internet",
+  "item.neocomputers.lan": "Carte réseau sans fil",
+  "item.neocomputers.wlan0": "Carte réseau sans fil (niveau 1)",
+  "item.neocomputers.wlan1": "Carte réseau sans fil (niveau 2)",
+  "item.neocomputers.tunnel": "Carte liée",
+  "item.neocomputers.data0": "Carte de données (niveau 1)",
+  "item.neocomputers.data1": "Carte de données (niveau 2)",
+  "item.neocomputers.data2": "Carte de données (niveau 3)",
+  "item.neocomputers.gpu0": "Carte graphiques (niveau 1)",
+  "item.neocomputers.gpu1": "Carte graphiques (niveau 2)",
+  "item.neocomputers.gpu2": "Carte graphiques (niveau 3)",
+  "item.neocomputers.hdd0": "Disque dur (niveau 1)",
+  "item.neocomputers.hdd1": "Disque dur (niveau 2)",
+  "item.neocomputers.hdd2": "Disque dur (niveau 3)",
+  "neocomputers.errors.ENOCPU": "absence d'un processeur",
+  "neocomputers.errors.E2BIG": "trop de composants",
+  "neocomputers.errors.ENOENJ": "niveau d'énergie dangereusement bas",
+  "neocomputers.errors.ENOMEM": "absence de mémoire",
+  "neocomputers.wlan.range": "Portée: %1$s blocs",
+  "neocomputers.data.limit": "Mémoire: %1$s",
+  "neocomputers.gpu.vram": "Mémoire vidéo: %1$spx",
+  "neocomputers.disk.spaceused": "Espace utilisé: %1$s / %2$s",
+  "neocomputers.readonly": "Lecture seule",
+  "neocomputers.readwrite": "Lecture-écriture",
+  "neocomputers.noaddr": "Pas d'adresse attribué",
+  "neocomputers.computer.on": "ALLUMÉ",
+  "neocomputers.computer.off": "ÉTEINT",
+  "neocomputers.computer.errorNoMsg": "Erreur: ",
+  "neocomputers.computer.energy": "Énergie: %1$s / %2$s J",
+  "neocomputers.computer.memory": "Mémoire: %1$s / %2$s",
+  "neocomputers.computer.components": "Composants: %1$s / %2$s",
+  "neocomputers.memory.capacity": "Capacité: %1$s",
+  "neocomputers.arch": "Architecture: %1$s",
+  "neocomputers.eeprom.codeused": "Code stocké: %1$s / %2$s",
+  "neocomputers.eeprom.dataused": "Données stockées: %1$s / %2$s",
+  "neocomputers.tunnel.channel": "Chaîne connectée: %1$s",
+  "sounds.neocomputers.computer_running": "Ventilateurs d'ordinateur"
+}

src/main/resources/assets/neocomputers/lang/nl_nl.json

@@ -0,0 +1,67 @@
+{
+  "neocomputers.confirm": "Bevestigen",
+  "neocomputers.cancel": "Annuleren",
+  "block.neocomputers.combustgen": "Verbrandingsgenerator",
+  "block.neocomputers.redio": "Redstone I/O",
+  "item.neocomputers.redio0": "Redstonekaart (niveau 1)",
+  "item.neocomputers.redio1": "Redstonekaart (niveau 2)",
+  "block.neocomputers.solargen": "Zonnegenerator",
+  "block.neocomputers.screen": "Scherm (niveauloos)",
+  "block.neocomputers.capacitor": "Kleine condensator",
+  "block.neocomputers.capacitor2": "Middelgrote condensator",
+  "block.neocomputers.capacitor3": "Grote condensator",
+  "block.neocomputers.case": "Behuizing (niveauloos)",
+  "block.neocomputers.cable": "Kabel",
+  "block.neocomputers.relay": "Doorgever",
+  "item.neocomputers.eeprom0": "EEPROM (niveau 1)",
+  "item.neocomputers.cpu0": "Processor (niveau 1)",
+  "item.neocomputers.cpu1": "Processor (niveau 2)",
+  "item.neocomputers.cpu2": "Processor (niveau 3)",
+  "item.neocomputers.cbus0": "Componentenbus (niveau 1)",
+  "item.neocomputers.cbus1": "Componentenbus (niveau 2)",
+  "item.neocomputers.cbus2": "Componentenbus (niveau 3)",
+  "item.neocomputers.cbus_creative": "Componentenbus (creatief)",
+  "item.neocomputers.memory0": "Geheugen (niveau 1)",
+  "item.neocomputers.memory1": "Geheugen (niveau 1,5)",
+  "item.neocomputers.memory2": "Geheugen (niveau 2)",
+  "item.neocomputers.memory3": "Geheugen (niveau 2,5)",
+  "item.neocomputers.memory4": "Geheugen (niveau 3)",
+  "item.neocomputers.memory5": "Geheugen (niveau 3,5)",
+  "item.neocomputers.inet": "Internetkaart",
+  "item.neocomputers.lan": "Bedrade netwerkkaart",
+  "item.neocomputers.wlan0": "Draadloze netwerkkaart (niveau 1)",
+  "item.neocomputers.wlan1": "Draadloze netwerkkaart (niveau 2)",
+  "item.neocomputers.tunnel": "Gekoppelde kaart",
+  "item.neocomputers.data0": "Datakaart (niveau 1)",
+  "item.neocomputers.data1": "Datakaart (niveau 2)",
+  "item.neocomputers.data2": "Datakaart (niveau 3)",
+  "item.neocomputers.gpu0": "Videokaart (niveau 1)",
+  "item.neocomputers.gpu1": "Videokaart (niveau 2)",
+  "item.neocomputers.gpu2": "Videokaart (niveau 3)",
+  "item.neocomputers.hdd0": "Harde schijf (niveau 1)",
+  "item.neocomputers.hdd1": "Harde schijf (niveau 2)",
+  "item.neocomputers.hdd2": "Harde schijf (niveau 3)",
+  "neocomputers.errors.ENOCPU": "geen processor",
+  "neocomputers.errors.E2BIG": "te veel componenten",
+  "neocomputers.errors.ENOENJ": "gevaarlijk weinig stroom",
+  "neocomputers.errors.ENOMEM": "geen geheugen",
+  "neocomputers.wlan.range": "Bereik: %1$s blokken",
+  "neocomputers.data.limit": "Geheugen: %1$s",
+  "neocomputers.gpu.vram": "Videogeheugen: %1$spx",
+  "neocomputers.disk.spaceused": "Gebruikte ruimte: %1$s / %2$s",
+  "neocomputers.readonly": "Alleen-lezen",
+  "neocomputers.readwrite": "Lezen-schrijven",
+  "neocomputers.noaddr": "Geen adres toegewezen",
+  "neocomputers.computer.on": "AAN",
+  "neocomputers.computer.off": "UIT",
+  "neocomputers.computer.errorNoMsg": "Fout: ",
+  "neocomputers.computer.energy": "Stroom: %1$s / %2$s J",
+  "neocomputers.computer.memory": "Geheugen: %1$s / %2$s",
+  "neocomputers.computer.components": "Componenten: %1$s / %2$s",
+  "neocomputers.memory.capacity": "Capaciteit: %1$s",
+  "neocomputers.arch": "Architectuur: %1$s",
+  "neocomputers.eeprom.codeused": "Opgeslagen code: %1$s / %2$s",
+  "neocomputers.eeprom.dataused": "Opgeslagen data: %1$s / %2$s",
+  "neocomputers.tunnel.channel": "Gekoppeld kanaal: %1$s",
+  "sounds.neocomputers.computer_running": "Computerventilatoren"
+}

src/main/resources/assets/neocomputers/lang/ro_ro.json

@@ -11,6 +11,9 @@
   "block.neocomputers.capacitor": "Condensator Electric Mic",
   "block.neocomputers.capacitor2": "Condensator Electric Mediu",
   "block.neocomputers.capacitor3": "Condensator Electric Mare",
+  "block.neocomputers.case": "Carcasă (fără grad)",
+  "block.neocomputers.cable": "Cabluri",
+  "block.neocomputers.relay": "Releu",
   "item.neocomputers.eeprom0": "Memorie Programabilă Electronic (Grad 1)",
   "item.neocomputers.cpu0": "Procesor Central (Grad 1)",
   "item.neocomputers.cpu1": "Procesor Central (Grad 2)",

src/main/resources/assets/neocomputers/models/block/assembler.json

@@ -0,0 +1,44 @@
+{
+  "parent": "block/block",
+  "textures": {
+    "bottom": "neocomputers:block/generic_top",
+    "top": "neocomputers:block/assembler_top",
+    "side": "neocomputers:block/assembler_side",
+    "particle": "neocomputers:block/generic_top"
+  },
+  "elements": [
+    {   "from": [ 0, 0, 0 ],
+      "to": [ 16, 7, 16 ],
+      "faces": {
+        "up":    { "uv": [ 0, 0, 16, 16 ], "texture": "#top" },
+        "down":  { "uv": [ 0, 0, 16, 16 ], "texture": "#bottom" },
+        "north": { "uv": [ 0, 0, 16, 7 ], "texture": "#side" },
+        "south": { "uv": [ 0, 0, 16, 7 ], "texture": "#side" },
+        "west":  { "uv": [ 0, 0, 16, 7 ], "texture": "#side" },
+        "east":  { "uv": [ 0, 0, 16, 7 ], "texture": "#side" }
+      }
+    },
+    {   "from": [ 2, 7, 2 ],
+      "to": [ 14, 9, 14 ],
+      "faces": {
+        "up":    { "uv": [ 2, 2, 14, 14 ], "texture": "#top" },
+        "down":  { "uv": [ 2, 2, 14, 14 ], "texture": "#bottom" },
+        "north": { "uv": [ 2, 7, 14, 9 ], "texture": "#side" },
+        "south": { "uv": [ 2, 7, 14, 9 ], "texture": "#side" },
+        "west":  { "uv": [ 2, 7, 14, 9 ], "texture": "#side" },
+        "east":  { "uv": [ 2, 7, 14, 9 ], "texture": "#side" }
+      }
+    },
+    {   "from": [ 0, 9, 0 ],
+      "to": [ 16, 16, 16 ],
+      "faces": {
+        "up":    { "uv": [ 0, 0, 16, 16 ], "texture": "#top" },
+        "down":  { "uv": [ 0, 0, 16, 16 ], "texture": "#bottom" },
+        "north": { "uv": [ 0, 9, 16, 16 ], "texture": "#side" },
+        "south": { "uv": [ 0, 9, 16, 16 ], "texture": "#side" },
+        "west":  { "uv": [ 0, 9, 16, 16 ], "texture": "#side" },
+        "east":  { "uv": [ 0, 9, 16, 16 ], "texture": "#side" }
+      }
+    }
+  ]
+}

src/main/resources/assets/neocomputers/models/block/cable/cable_cap.json

@@ -2,7 +2,8 @@
   "parent": "minecraft:block/block",
   "render_type": "minecraft:solid",
   "textures": {
-    "cap": "neocomputers:block/cable_cap"
+    "cap": "neocomputers:block/cable_cap",
+    "particle": "neocomputers:block/cable_cap"
   },
   "elements": [
     {

src/main/resources/assets/neocomputers/models/block/cable/cable_caps.json

@@ -2,7 +2,8 @@
   "parent": "minecraft:block/block",
   "render_type": "minecraft:solid",
   "textures": {
-    "cap": "neocomputers:block/cable_cap"
+    "cap": "neocomputers:block/cable_cap",
+    "particle": "neocomputers:block/cable_cap"
   },
   "elements": [
     {

src/main/resources/assets/neocomputers/models/block/cable/cable_center.json

@@ -2,19 +2,20 @@
     "parent": "minecraft:block/block",
     "render_type": "minecraft:solid",
     "textures": {
-        "cap": "neocomputers:block/cable_body"
+        "body": "neocomputers:block/cable_body",
+        "particle": "neocomputers:block/cable_cap"
     },
     "elements": [
         {
             "from": [6, 6, 6],
             "to": [10, 10, 10],
             "faces": {
-                "north": { "uv":  [6,6,10,10], "texture": "#cap" },
+                "north": { "uv":  [6,6,10,10], "texture": "#body", "tintindex": 0 },
-                "east": { "uv":  [6,6,10,10], "texture": "#cap" },
+                "east": { "uv":  [6,6,10,10], "texture": "#body", "tintindex": 0 },
-                "west": { "uv":  [6,6,10,10], "texture": "#cap" },
+                "west": { "uv":  [6,6,10,10], "texture": "#body", "tintindex": 0 },
-                "south": { "uv":  [6,6,10,10], "texture": "#cap" },
+                "south": { "uv":  [6,6,10,10], "texture": "#body", "tintindex": 0 },
-                "up": { "uv":  [0,0, 5, 5], "texture": "#cap" },
+                "up": { "uv":  [0,0, 5, 5], "texture": "#body", "tintindex": 0 },
-                "down": { "uv":  [0,0, 5, 5], "texture": "#cap" }
+                "down": { "uv":  [0,0, 5, 5], "texture": "#body", "tintindex": 0 }
             }
         }
     ]

src/main/resources/assets/neocomputers/models/block/cable/cable_connection.json

@@ -3,18 +3,19 @@
     "render_type": "minecraft:solid",
     "textures": {
         "cap": "neocomputers:block/cable_cap",
-        "body": "neocomputers:block/cable_body"
+        "body": "neocomputers:block/cable_body",
+        "particle": "neocomputers:block/cable_cap"
     },
     "elements": [
         {
             "from": [6, 6, 10],
             "to": [10, 10, 16],
             "faces": {
-                "east": { "uv":  [4,4,11,11], "texture": "#body" },
+                "east": { "uv":  [4,4,11,11], "texture": "#body", "tintindex": 0 },
-                "west": { "uv":  [4,4,11,11], "texture": "#body" },
+                "west": { "uv":  [4,4,11,11], "texture": "#body", "tintindex": 0 },
-                "up": { "uv":  [4,4,11,11], "texture": "#body" },
+                "up": { "uv":  [4,4,11,11], "texture": "#body", "tintindex": 0 },
-                "down": { "uv":  [4,4,11,11], "texture": "#body" },
+                "down": { "uv":  [4,4,11,11], "texture": "#body", "tintindex": 0 },
-                "south": { "uv":  [6, 6, 10, 10], "texture": "#cap"}
+                "south": { "uv":  [6, 6, 10, 10], "texture": "#cap", "tintindex": 0}
             }
         }
     ]

src/main/resources/assets/neocomputers/models/block/cable/cable_item.json

@@ -3,24 +3,25 @@
   "render_type": "minecraft:solid",
   "textures": {
     "cap": "neocomputers:block/cable_cap",
-    "body": "neocomputers:block/cable_body"
+    "body": "neocomputers:block/cable_body",
+    "particle": "neocomputers:block/cable_cap"
   },
   "elements": [
     {
-      "from": [6, -2, 6],
+      "from": [6, 1, 6],
-      "to": [10, 18, 10],
+      "to": [10, 15, 10],
       "faces": {
-        "east": { "uv":  [0,0,5,16], "texture": "#body" },
+        "east": { "uv":  [0,0,5,16], "texture": "#body", "tintindex": 0 },
-        "west": { "uv":  [0,0,5,16], "texture": "#body" },
+        "west": { "uv":  [0,0,5,16], "texture": "#body", "tintindex": 0 },
-        "north": { "uv":  [0,0,5,16], "texture": "#body" },
+        "north": { "uv":  [0,0,5,16], "texture": "#body", "tintindex": 0 },
-        "south": { "uv":  [0,0,5,16], "texture": "#body" },
+        "south": { "uv":  [0,0,5,16], "texture": "#body", "tintindex": 0 },
-        "up": { "uv":  [0,0,5,16], "texture": "#body" },
+        "up": { "uv":  [0,0,5,16], "texture": "#body", "tintindex": 0 },
-        "down": { "uv":  [0,0,5,16], "texture": "#body" }
+        "down": { "uv":  [0,0,5,16], "texture": "#body", "tintindex": 0 }
       }
     },
     {
-      "from": [4, -3, 4],
+      "from": [4, 0, 4],
-      "to": [12, -2, 12],
+      "to": [12, 1, 12],
       "faces": {
         "east": { "uv":  [0,0,4,4], "texture": "#cap" },
         "west": { "uv":  [0,0,4,4], "texture": "#cap" },
@@ -30,8 +31,8 @@
       }
     },
     {
-      "from": [4, 18, 4],
+      "from": [4, 15, 4],
-      "to": [12, 19, 12],
+      "to": [12, 16, 12],
       "faces": {
         "east": { "uv":  [0,0,4,4], "texture": "#cap" },
         "west": { "uv":  [0,0,4,4], "texture": "#cap" },

src/main/resources/assets/neocomputers/models/block/rack.json

@@ -0,0 +1,70 @@
+{
+  "parent": "minecraft:block/block",
+  "render_type": "minecraft:solid",
+  "textures": {
+    "side": "neocomputers:block/rack_side",
+    "top": "neocomputers:block/generic_top"
+  },
+  "elements": [
+    {
+      "from": [0, 0, 0],
+      "to": [1, 16, 16],
+      "faces": {
+        "west": { "uv": [0, 0, 16, 16], "texture": "side", "tint_index": 0 },
+        "east": { "uv": [0, 0, 16, 16], "texture": "side", "tint_index": 0 },
+        "north": { "uv": [0, 0, 16, 1], "texture": "side", "tint_index": 0 },
+        "south": { "uv": [0, 0, 16, 1], "texture": "side", "tint_index": 0 },
+        "up": { "uv": [0, 0, 16, 1], "texture": "side", "tint_index": 0 },
+        "down": { "uv": [0, 0, 16, 1], "texture": "side", "tint_index": 0 }
+      }
+    },
+    {
+      "from": [1, 0, 0],
+      "to": [16, 16, 1],
+      "faces": {
+        "north": { "uv": [0, 0, 15, 16], "texture": "side", "tint_index": 0 },
+        "south": { "uv": [1, 0, 16, 16], "texture": "side", "tint_index": 0 },
+        "west": { "uv": [0, 0, 1, 16], "texture": "side", "tint_index": 0 },
+        "east": { "uv": [0, 0, 1, 16], "texture": "side", "tint_index": 0 },
+        "up": { "uv": [0, 0, 16, 1], "texture": "side", "tint_index": 0 },
+        "down": { "uv": [0, 0, 16, 1], "texture": "side", "tint_index": 0 }
+      }
+    },
+    {
+      "from": [1, 0, 15],
+      "to": [16, 16, 16],
+      "faces": {
+        "north": { "uv": [0, 0, 15, 16], "texture": "side", "tint_index": 0 },
+        "south": { "uv": [1, 0, 16, 16], "texture": "side", "tint_index": 0 },
+        "west": { "uv": [0, 0, 1, 16], "texture": "side", "tint_index": 0 },
+        "east": { "uv": [0, 0, 1, 16], "texture": "side", "tint_index": 0 },
+        "up": { "uv": [0, 0, 16, 1], "texture": "side", "tint_index": 0 },
+        "down": { "uv": [0, 0, 16, 1], "texture": "side", "tint_index": 0 }
+      }
+    },
+    {
+      "from": [1, 0, 1],
+      "to": [16, 2, 15],
+      "faces": {
+        "north": { "uv": [0, 0, 1, 16], "texture": "top", "tint_index": 0 },
+        "south": { "uv": [0, 0, 1, 16], "texture": "top", "tint_index": 0 },
+        "west": { "uv": [0, 0, 1, 16], "texture": "top", "tint_index": 0 },
+        "east": { "uv": [0, 0, 1, 16], "texture": "top", "tint_index": 0 },
+        "up": { "uv": [2, 1, 16, 15], "texture": "top", "tint_index": 0 },
+        "down": { "uv": [0, 0, 1, 1], "texture": "top", "tint_index": 0 }
+      }
+    },
+    {
+      "from": [1, 14, 1],
+      "to": [16, 16, 15],
+      "faces": {
+        "north": { "uv": [0, 0, 1, 16], "texture": "top", "tint_index": 0 },
+        "south": { "uv": [0, 0, 1, 16], "texture": "top", "tint_index": 0 },
+        "west": { "uv": [0, 0, 1, 16], "texture": "top", "tint_index": 0 },
+        "east": { "uv": [1, 0, 15, 2], "texture": "top", "tint_index": 0 },
+        "up": { "uv": [1, 1, 16, 15], "texture": "top", "tint_index": 0 },
+        "down": { "uv": [0, 0, 1, 1], "texture": "top", "tint_index": 0 }
+      }
+    }
+  ]
+}

src/main/resources/assets/neocomputers/models/block/relay.json

@@ -0,0 +1,12 @@
+{
+  "parent": "minecraft:block/cube",
+  "textures": {
+    "up": "neocomputers:block/relay_top",
+    "down": "neocomputers:block/screen_bottom",
+    "north": "neocomputers:block/relay_side",
+    "south": "neocomputers:block/relay_side",
+    "east": "neocomputers:block/relay_side",
+    "west": "neocomputers:block/relay_side",
+    "particle": "neocomputers:block/case_top"
+  }
+}

src/main/resources/assets/neocomputers/models/item/rack.json

@@ -0,0 +1,3 @@
+{
+  "parent": "neocomputers:block/rack"
+}

src/main/resources/assets/neocomputers/models/item/relay.json

@@ -0,0 +1,3 @@
+{
+  "parent": "neocomputers:block/relay"
+}

src/main/resources/assets/neocomputers/models/item/server0.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:item/generated",
+  "textures": {
+    "layer0": "neocomputers:item/server0"
+  }
+}

src/main/resources/assets/neocomputers/models/item/server1.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:item/generated",
+  "textures": {
+    "layer0": "neocomputers:item/server1"
+  }
+}

src/main/resources/assets/neocomputers/models/item/server2.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:item/generated",
+  "textures": {
+    "layer0": "neocomputers:item/server2"
+  }
+}