Partially implemented gui for cpu.

src/client/java/net/brokenmoon/redcontrol/RedControlClient.java

@@ -16,7 +16,7 @@ public class RedControlClient implements ClientModInitializer {
 				RedControlNetworking.CPUGUI_PACKET_ID, (client, handler, buf, responseSender) -> {
 					BlockPos blockPos = buf.readBlockPos();
 					client.execute(() -> {
-						client.setScreen(new CpuScreen(Text.literal("cpu")));
+						client.setScreen(new CpuScreen(Text.literal("cpu"), blockPos));
 					});
 				});
 		ClientPlayNetworking.registerGlobalReceiver(

src/client/java/net/brokenmoon/redcontrol/screen/CpuScreen.java

@@ -1,17 +1,78 @@
 package net.brokenmoon.redcontrol.screen;
 
 import net.brokenmoon.redcontrol.RedControl;
+import net.brokenmoon.redcontrol.RedControlNetworking;
+import net.brokenmoon.redcontrol.blockentities.CpuEntity;
+import net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking;
+import net.fabricmc.fabric.api.networking.v1.PacketByteBufs;
+import net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking;
+import net.minecraft.client.gui.DrawContext;
 import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.client.gui.widget.ButtonWidget;
+import net.minecraft.network.PacketByteBuf;
+import net.minecraft.server.network.ServerPlayerEntity;
 import net.minecraft.text.Text;
+import net.minecraft.util.Identifier;
+import net.minecraft.util.math.BlockPos;
 
 public class CpuScreen extends Screen {
-    public CpuScreen(Text title) {
+
+    private static final Identifier cpuTexture = new Identifier("redcontrol", "gui/cpu.png");
+    private static final Identifier poweredButton = new Identifier("redcontrol", "gui/lit_button.png");
+
+    BlockPos pos;
+    CpuEntity cpu;
+
+    public CpuScreen(Text title, BlockPos blockPos) {
         super(title);
+        this.pos = blockPos;
     }
 
+    public ButtonWidget startButton;
+    public ButtonWidget stopButton;
+    public ButtonWidget resetButton;
+
     @Override
     protected void init() {
         super.init();
         RedControl.LOGGER.info("Created CPU screen");
+        cpu = (CpuEntity) client.world.getBlockEntity(pos);
+
+        startButton = ButtonWidget.builder(Text.literal("Start"), button -> {
+            PacketByteBuf byteBuf = PacketByteBufs.create();
+            byteBuf.writeBlockPos(pos);
+            ClientPlayNetworking.send(RedControlNetworking.CPU_START,byteBuf);
+        }).dimensions(width / 2 + 105, 20, 200, 20).build();
+
+        stopButton = ButtonWidget.builder(Text.literal("Stop"), button -> {
+            PacketByteBuf byteBuf = PacketByteBufs.create();
+            byteBuf.writeBlockPos(pos);
+            ClientPlayNetworking.send(RedControlNetworking.CPU_STOP,byteBuf);
+        }).dimensions(width / 2 + 105, 50, 200, 20).build();
+
+        resetButton = ButtonWidget.builder(Text.literal("Reset"), button -> {
+            PacketByteBuf byteBuf = PacketByteBufs.create();
+            byteBuf.writeBlockPos(pos);
+            ClientPlayNetworking.send(RedControlNetworking.CPU_RESET,byteBuf);
+        }).dimensions(width / 2 + 105, 80, 200, 20).build();
+
+        addDrawableChild(startButton);
+        addDrawableChild(stopButton);
+        addDrawableChild(resetButton);
+    }
+
+    @Override
+    public void render(DrawContext context, int mouseX, int mouseY, float delta) {
+        super.render(context, mouseX, mouseY, delta);
+        int buttonPos = 7;
+        if(cpu.isRunning){
+            buttonPos = 0;
+        } else if(cpu.isResetting || cpu.isReset){
+            buttonPos = 14;
+        }
+        int x = (width - 176) / 2;
+        int y = (height - 166) / 2;
+        context.drawTexture(cpuTexture,x,y,0,0,176,166);
+        context.drawTexture(poweredButton, x + 27, y + 6 + buttonPos, 0, 0, 4, 4);
     }
 }

src/client/java/net/brokenmoon/redcontrol/screen/MonitorScreen.java

@@ -1,10 +1,13 @@
 package net.brokenmoon.redcontrol.screen;
 
 import net.brokenmoon.redcontrol.RedControl;
+import net.minecraft.client.gui.DrawContext;
 import net.minecraft.client.gui.screen.Screen;
 import net.minecraft.text.Text;
+import net.minecraft.util.Identifier;
 
 public class MonitorScreen extends Screen {
+    Identifier screenTexture = new Identifier("redcontrol", "gui/display.png");
     public MonitorScreen(Text title) {
         super(title);
     }
@@ -14,4 +17,10 @@ public class MonitorScreen extends Screen {
         super.init();
         RedControl.LOGGER.info("Opened Monitor Screen");
     }
+
+    @Override
+    public void render(DrawContext context, int mouseX, int mouseY, float delta) {
+        super.render(context, mouseX, mouseY, delta);
+        context.drawTexture(screenTexture,0,0,0,0,350,230);
+    }
 }

src/main/java/net/brokenmoon/redcontrol/RedControl.java

@@ -9,6 +9,7 @@ import net.brokenmoon.redcontrol.blocks.MonitorBlock;
 import net.fabricmc.api.ModInitializer;
 
 import net.fabricmc.fabric.api.item.v1.FabricItemSettings;
+import net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking;
 import net.fabricmc.fabric.api.object.builder.v1.block.FabricBlockSettings;
 import net.fabricmc.fabric.api.object.builder.v1.block.entity.FabricBlockEntityTypeBuilder;
 import net.fabricmc.fabric.api.resource.ResourceManagerHelper;
@@ -21,7 +22,9 @@ import net.minecraft.registry.Registries;
 import net.minecraft.resource.Resource;
 import net.minecraft.resource.ResourceManager;
 import net.minecraft.resource.ResourceType;
+import net.minecraft.text.Text;
 import net.minecraft.util.Identifier;
+import net.minecraft.util.math.BlockPos;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -84,5 +87,30 @@ public class RedControl implements ModInitializer {
 		Registry.register(Registries.ITEM, new Identifier("redcontrol", "monitor"), new BlockItem(MONITOR, new FabricItemSettings()));
 		Registry.register(Registries.ITEM, new Identifier("redcontrol", "disk_drive"), new BlockItem(DRIVE, new FabricItemSettings()));
 
+		//Packets
+		ServerPlayNetworking.registerGlobalReceiver(RedControlNetworking.CPU_START, ((server, player, handler, buf, responseSender) -> {
+			server.execute(() -> {
+				CpuEntity cpu = (CpuEntity) player.getWorld().getBlockEntity(buf.readBlockPos());
+				cpu.start();
+				LOGGER.info("Starting cpu at " + buf.readBlockPos());
+			});
+		}));
+
+		ServerPlayNetworking.registerGlobalReceiver(RedControlNetworking.CPU_STOP, ((server, player, handler, buf, responseSender) -> {
+			server.execute(() -> {
+				CpuEntity cpu = (CpuEntity) player.getWorld().getBlockEntity(buf.readBlockPos());
+				cpu.stop();
+				LOGGER.info("Stopping cpu at " + buf.readBlockPos());
+			});
+		}));
+
+		ServerPlayNetworking.registerGlobalReceiver(RedControlNetworking.CPU_RESET, ((server, player, handler, buf, responseSender) -> {
+			server.execute(() -> {
+				CpuEntity cpu = (CpuEntity) player.getWorld().getBlockEntity(buf.readBlockPos());
+				cpu.reset();
+				LOGGER.info("Resetting cpu at " + buf.readBlockPos());
+			});
+		}));
+
 	}
 }

src/main/java/net/brokenmoon/redcontrol/RedControlNetworking.java

@@ -5,4 +5,7 @@ import net.minecraft.util.Identifier;
 public class RedControlNetworking {
     public static final Identifier CPUGUI_PACKET_ID = new Identifier("redcontrol", "open_cpu_gui");
     public static final Identifier MONITOR_PACKET_ID = new Identifier("redcontrol", "open_monitor");
+    public static final Identifier CPU_START = new Identifier("redcontrol", "start_cpu");
+    public static final Identifier CPU_STOP = new Identifier("redcontrol", "stop_cpu");
+    public static final Identifier CPU_RESET = new Identifier("redcontrol", "reset_cpu");
 }

src/main/java/net/brokenmoon/redcontrol/blockentities/CpuEntity.java

@@ -23,9 +23,9 @@ public class CpuEntity extends Peripheral{
     private int defaultMonitorId = 1;
     private int defaultDriveId = 2;
 
-    private boolean isRunning = true;
+    public boolean isRunning = false;
-    private boolean isResetting = false;
+    public boolean isResetting = false;
-    private boolean isReset = false;
+    public boolean isReset = false;
     private int resetTimer = 5;
 
     public CpuEntity(BlockPos pos, BlockState state) {
@@ -76,6 +76,22 @@ public class CpuEntity extends Peripheral{
 
     public void reset() {
         this.core.reset(this.defaultDriveId, this.defaultMonitorId);
+        isRunning = false;
+        isResetting = true;
+        isReset = false;
+        resetTimer = 5;
+    }
+
+    public void stop() {
+        isRunning = false;
+        isResetting = false;
+        isReset = false;
+    }
+
+    public void start() {
+        isRunning = true;
+        isResetting = false;
+        isReset = false;
     }
 
     public void step() {
@@ -129,7 +145,7 @@ public class CpuEntity extends Peripheral{
 
     @Override
     public void readNbt(NbtCompound nbt) {
-        this.isReset = nbt.getBoolean("isRunning");
+        this.isRunning = nbt.getBoolean("isRunning");
         this.isResetting = nbt.getBoolean("isResetting");
         this.isReset = nbt.getBoolean("isReset");
         this.resetTimer = nbt.getInt("resetTimer");