Implement Starlight compatibility.

build.gradle

@@ -170,6 +170,7 @@ dependencies {
 
     compileOnly fg.deobf("mezz.jei:jei-${jei_minecraft_version}:${jei_version}:api")
     runtimeOnly fg.deobf("mezz.jei:jei-${jei_minecraft_version}:${jei_version}")
+    compileOnly fg.deobf("curse.maven:starlight-526854:3559934")
 
     // implementation fg.deobf("curse.maven:druidcraft-340991:3101903")
     // implementation fg.deobf("com.ferreusveritas.dynamictrees:DynamicTrees-1.16.5:0.10.0-Beta25")

src/main/java/com/simibubi/create/content/contraptions/components/structureMovement/ContraptionWorld.java

@@ -46,4 +46,14 @@ public class ContraptionWorld extends WrappedWorld {
     public void playLocalSound(double x, double y, double z, SoundEvent p_184134_7_, SoundSource p_184134_8_, float p_184134_9_, float p_184134_10_, boolean p_184134_11_) {
         world.playLocalSound(x, y, z, p_184134_7_, p_184134_8_, p_184134_9_, p_184134_10_, p_184134_11_);
     }
+
+	@Override
+	public int getMinBuildHeight() {
+		return -1 * (int)this.contraption.bounds.getYsize();
+	}
+
+	@Override
+	public int getHeight() {
+		return -2 * getMinBuildHeight();
+	}
 }

src/main/java/com/simibubi/create/content/contraptions/components/structureMovement/render/ContraptionRenderDispatcher.java

@@ -104,7 +104,7 @@ public class ContraptionRenderDispatcher {
 	}
 
 	public static PlacementSimulationWorld setupRenderWorld(Level world, Contraption c) {
-		PlacementSimulationWorld renderWorld = new PlacementSimulationWorld(world);
+		PlacementSimulationWorld renderWorld = new PlacementSimulationWorld(world, c);
 
 		renderWorld.setTileEntities(c.presentTileEntities.values());
 

src/main/java/com/simibubi/create/foundation/utility/worldWrappers/PlacementSimulationWorld.java

@@ -9,6 +9,8 @@ import java.util.function.Predicate;
 
 import com.jozufozu.flywheel.api.FlywheelWorld;
 
+import com.simibubi.create.content.contraptions.components.structureMovement.Contraption;
+
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.SectionPos;
 import net.minecraft.world.level.Level;
@@ -16,8 +18,12 @@ import net.minecraft.world.level.block.Block;
 import net.minecraft.world.level.block.Blocks;
 import net.minecraft.world.level.block.entity.BlockEntity;
 import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.level.chunk.ChunkAccess;
+import net.minecraft.world.level.chunk.LevelChunk;
 import net.minecraft.world.level.lighting.LevelLightEngine;
 
+import org.jetbrains.annotations.NotNull;
+
 public class PlacementSimulationWorld extends WrappedWorld implements FlywheelWorld {
 	public Map<BlockPos, BlockState> blocksAdded;
 	public Map<BlockPos, BlockEntity> tesAdded;
@@ -27,12 +33,15 @@ public class PlacementSimulationWorld extends WrappedWorld implements FlywheelWo
 	public WrappedChunkProvider chunkProvider;
 	private final BlockPos.MutableBlockPos scratch = new BlockPos.MutableBlockPos();
 
-	public PlacementSimulationWorld(Level wrapped) {
+	private final Contraption contraption;
-		this(wrapped, new WrappedChunkProvider());
+
+	public PlacementSimulationWorld(Level wrapped, Contraption c) {
+		this(wrapped, c, new WrappedChunkProvider());
 	}
 
-	public PlacementSimulationWorld(Level wrapped, WrappedChunkProvider chunkProvider) {
+	public PlacementSimulationWorld(Level wrapped, @NotNull Contraption c, WrappedChunkProvider chunkProvider) {
 		super(wrapped, chunkProvider);
+		contraption = c;
 		this.chunkProvider = chunkProvider.setPlacementWorld(this);
 		spannedSections = new HashSet<>();
 		lighter = new LevelLightEngine(chunkProvider, true, false); // blockLight, skyLight
@@ -117,4 +126,24 @@ public class PlacementSimulationWorld extends WrappedWorld implements FlywheelWo
 			return state;
 		return Blocks.AIR.defaultBlockState();
 	}
+
+	@Override
+	public int getMinBuildHeight() {
+		return contraption.getContraptionWorld().getMinBuildHeight();
+	}
+
+	@Override
+	public int getHeight() {
+		return contraption.getContraptionWorld().getHeight();
+	}
+
+	// Override Starlight's ExtendedWorld interface methods:
+
+	public LevelChunk getChunkAtImmediately(final int chunkX, final int chunkZ) {
+		return chunkProvider.getChunk(chunkX, chunkZ, false);
+	}
+
+	public ChunkAccess getAnyChunkImmediately(final int chunkX, final int chunkZ) {
+		return chunkProvider.getChunk(chunkX, chunkZ);
+	}
 }

src/main/java/com/simibubi/create/foundation/utility/worldWrappers/chunk/WrappedChunk.java

@@ -7,6 +7,10 @@ import java.util.stream.Stream;
 
 import javax.annotation.Nullable;
 
+import ca.spottedleaf.starlight.common.chunk.ExtendedChunk;
+
+import ca.spottedleaf.starlight.common.light.StarLightEngine;
+
 import com.simibubi.create.foundation.utility.worldWrappers.PlacementSimulationWorld;
 
 import it.unimi.dsi.fastutil.longs.LongSet;
@@ -30,6 +34,7 @@ import net.minecraft.world.level.material.Fluid;
 import net.minecraft.world.level.material.FluidState;
 import net.minecraft.world.ticks.BlackholeTickAccess;
 import net.minecraft.world.ticks.TickContainerAccess;
+import net.minecraftforge.fml.ModList;
 
 public class WrappedChunk extends ChunkAccess {
 
@@ -50,11 +55,17 @@ public class WrappedChunk extends ChunkAccess {
 		this.x = x;
 		this.z = z;
 
-		this.sections = new LevelChunkSection[16];
+		// Do not hard code the number of chunk sections
+		this.sections = new LevelChunkSection[world.getSectionsCount()];
 
-		for (int i = 0; i < 16; i++) {
+		for (int i = 0; i < this.sections.length; i++) {
 			sections[i] = new WrappedChunkSection(this, i << 4);
 		}
+		// If Starlight is loaded, initialize its NibbleArrays for this chunk to default values
+		if (ModList.get().isLoaded("starlight")) {
+			((ExtendedChunk)this).setBlockNibbles(StarLightEngine.getFilledEmptyLight(this));
+			((ExtendedChunk)this).setSkyNibbles(StarLightEngine.getFilledEmptyLight(this));
+		}
 	}
 
 	@Override