Add ComputerCraft integration to Stickers

- Add CC isExtended() function to check extension state
- Add CC extend()/retract()/toggle() to change the Sticker extension
  state, returning state change success.

src/main/java/com/simibubi/create/compat/computercraft/implementation/ComputerBehaviour.java

@@ -13,9 +13,11 @@
 import com.simibubi.create.compat.computercraft.implementation.peripherals.SpeedControllerPeripheral;
 import com.simibubi.create.compat.computercraft.implementation.peripherals.SpeedGaugePeripheral;
 import com.simibubi.create.compat.computercraft.implementation.peripherals.StationPeripheral;
+import com.simibubi.create.compat.computercraft.implementation.peripherals.StickerPeripheral;
 import com.simibubi.create.compat.computercraft.implementation.peripherals.StressGaugePeripheral;
 import com.simibubi.create.compat.computercraft.implementation.peripherals.SyncedPeripheral;
 import com.simibubi.create.compat.computercraft.implementation.peripherals.TrackObserverPeripheral;
+import com.simibubi.create.content.contraptions.chassis.StickerBlockEntity;
 import com.simibubi.create.content.kinetics.gauge.SpeedGaugeBlockEntity;
 import com.simibubi.create.content.kinetics.gauge.StressGaugeBlockEntity;
 import com.simibubi.create.content.kinetics.motor.CreativeMotorBlockEntity;
@@ -65,6 +67,8 @@ public static NonNullSupplier<SyncedPeripheral<?>> getPeripheralFor(SmartBlockEn
 			return () -> new SpeedGaugePeripheral(sgbe);
 		if (be instanceof StressGaugeBlockEntity sgbe)
 			return () -> new StressGaugePeripheral(sgbe);
+		if (be instanceof StickerBlockEntity sbe)
+			return () -> new StickerPeripheral(sbe);
 		if (be instanceof StationBlockEntity sbe)
 			return () -> new StationPeripheral(sbe);
 		if (be instanceof TrackObserverBlockEntity tobe)

src/main/java/com/simibubi/create/compat/computercraft/implementation/peripherals/StickerPeripheral.java

@@ -0,0 +1,62 @@
+package com.simibubi.create.compat.computercraft.implementation.peripherals;
+
+import org.jetbrains.annotations.NotNull;
+
+
+import com.simibubi.create.AllBlocks;
+import com.simibubi.create.content.contraptions.chassis.StickerBlock;
+import com.simibubi.create.content.contraptions.chassis.StickerBlockEntity;
+
+import dan200.computercraft.api.lua.LuaFunction;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.state.BlockState;
+
+public class StickerPeripheral extends SyncedPeripheral<StickerBlockEntity> {
+
+	public StickerPeripheral(StickerBlockEntity blockEntity) {
+		super(blockEntity);
+	}
+
+	@LuaFunction
+	public boolean isExtended() {
+		return blockEntity.isBlockStateExtended();
+	}
+
+	@LuaFunction(mainThread = true)
+	public boolean extend() {
+		BlockState state = blockEntity.getBlockState();
+		if (!AllBlocks.STICKER.has(state) || state.getValue(StickerBlock.EXTENDED))
+			return false;
+		blockEntity.getLevel().setBlock(
+				blockEntity.getBlockPos(), state.setValue(StickerBlock.EXTENDED, true), Block.UPDATE_CLIENTS);
+		return true;
+	}
+
+	@LuaFunction(mainThread = true)
+	public boolean retract() {
+		BlockState state = blockEntity.getBlockState();
+		if (!AllBlocks.STICKER.has(state) || !state.getValue(StickerBlock.EXTENDED))
+			return false;
+		blockEntity.getLevel().setBlock(
+				blockEntity.getBlockPos(), state.setValue(StickerBlock.EXTENDED, false), Block.UPDATE_CLIENTS);
+		return true;
+	}
+
+	@LuaFunction(mainThread = true)
+	public boolean toggle() {
+		BlockState state = blockEntity.getBlockState();
+		if (!AllBlocks.STICKER.has(state))
+			return false;
+		boolean extended = state.getValue(StickerBlock.EXTENDED);
+		blockEntity.getLevel().setBlock(
+				blockEntity.getBlockPos(), state.setValue(StickerBlock.EXTENDED, !extended), Block.UPDATE_CLIENTS);
+		return true;
+	}
+
+	@NotNull
+	@Override
+	public String getType() {
+		return "Create_Sticker";
+	}
+
+}

src/main/java/com/simibubi/create/content/contraptions/chassis/StickerBlockEntity.java

@@ -5,6 +5,8 @@
 import com.jozufozu.flywheel.backend.instancing.InstancedRenderDispatcher;
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.AllSoundEvents;
+import com.simibubi.create.compat.computercraft.AbstractComputerBehaviour;
+import com.simibubi.create.compat.computercraft.ComputerCraftProxy;
 import com.simibubi.create.content.contraptions.glue.SuperGlueEntity;
 import com.simibubi.create.content.contraptions.glue.SuperGlueItem;
 import com.simibubi.create.foundation.blockEntity.SmartBlockEntity;
@@ -20,21 +22,29 @@
 import net.minecraft.world.level.block.state.BlockState;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
+import net.minecraftforge.common.capabilities.Capability;
+import net.minecraftforge.common.util.LazyOptional;
 import net.minecraftforge.fml.DistExecutor;
 
+import org.jetbrains.annotations.NotNull;
+
 public class StickerBlockEntity extends SmartBlockEntity {
 
 	LerpedFloat piston;
 	boolean update;
 
+	public AbstractComputerBehaviour computerBehaviour;
+
 	public StickerBlockEntity(BlockEntityType<?> type, BlockPos pos, BlockState state) {
 		super(type, pos, state);
 		piston = LerpedFloat.linear();
 		update = false;
 	}
 
 	@Override
-	public void addBehaviours(List<BlockEntityBehaviour> behaviours) {}
+	public void addBehaviours(List<BlockEntityBehaviour> behaviours) {
+		behaviours.add(computerBehaviour = ComputerCraftProxy.behaviour(this));
+	}
 
 	@Override
 	public void initialize() {
@@ -85,7 +95,7 @@ public boolean isAttachedToBlock() {
 	protected void write(CompoundTag tag, boolean clientPacket) {
 		super.write(tag, clientPacket);
 	}
-	
+
 	@Override
 	protected void read(CompoundTag compound, boolean clientPacket) {
 		super.read(compound, clientPacket);
@@ -98,5 +108,17 @@ public void playSound(boolean attach) {
 		AllSoundEvents.SLIME_ADDED.play(level, Minecraft.getInstance().player, worldPosition, 0.35f, attach ? 0.75f : 0.2f);
 	}
 
+	@Override
+	public <T> @NotNull LazyOptional<T> getCapability(@NotNull Capability<T> cap, Direction side) {
+		if (computerBehaviour.isPeripheralCap(cap))
+			return computerBehaviour.getPeripheralCapability();
+		return super.getCapability(cap, side);
+	}
+
+	@Override
+	public void invalidateCaps() {
+		super.invalidateCaps();
+		computerBehaviour.removePeripheral();
+	}
 
 }