Fix contraption lighting

- Actually just one line.

changelog.txt

@@ -1,4 +1,12 @@
-0.4.1a:
+0.5.0:
+New
+ - Added parallel batching backend, effectively a CPU instancer.
+ - Now partially compatible with starlight.
+Technical/API
+ - Much more flexible vertex formats.
+ - Do instance updates/ticking entirely async.
+
+0.4.2-rc:
 Fixes
  - Partially fix crash on intel and mesa drivers (needs Create to update)
  - Fix garbage rendering on AMD GPUs

src/main/java/com/jozufozu/flywheel/backend/model/ArrayModelRenderer.java

@@ -4,7 +4,6 @@ import java.util.function.Supplier;
 
 import com.jozufozu.flywheel.backend.gl.GlVertexArray;
 import com.jozufozu.flywheel.core.model.Model;
-import com.jozufozu.flywheel.util.AttribUtil;
 
 public class ArrayModelRenderer extends ModelRenderer {
 
@@ -36,7 +35,6 @@ public class ArrayModelRenderer extends ModelRenderer {
 		vao = new GlVertexArray();
 
 		vao.bind();
-		vao.enableArrays(this.model.getAttributeCount());
 
 		// bind the model's vbo to our vao
 		this.model.setupState();

src/main/java/com/jozufozu/flywheel/core/vertex/BlockWriterUnsafe.java

@@ -46,7 +46,7 @@ public class BlockWriterUnsafe extends VertexWriterUnsafe<BlockVertex> {
 		MemoryUtil.memPutByte(ptr + 15, a);
 		MemoryUtil.memPutFloat(ptr + 16, u);
 		MemoryUtil.memPutFloat(ptr + 20, v);
-		MemoryUtil.memPutInt(ptr + 24, light);
+		MemoryUtil.memPutInt(ptr + 24, light << 8); // light is packed in the low byte of each short
 		MemoryUtil.memPutByte(ptr + 28, RenderMath.nb(nX));
 		MemoryUtil.memPutByte(ptr + 29, RenderMath.nb(nY));
 		MemoryUtil.memPutByte(ptr + 30, RenderMath.nb(nZ));

src/main/java/com/jozufozu/flywheel/core/vertex/VertexWriterUnsafe.java

@@ -24,6 +24,7 @@ public abstract class VertexWriterUnsafe<V extends VertexType> implements Vertex
 
 	protected void advance() {
 		writeVertex++;
+		// account for seeking
 		if (writeVertex > totalVertices) totalVertices = writeVertex;
 	}
 

src/main/java/com/jozufozu/flywheel/core/virtual/VirtualRenderWorld.java

@@ -96,6 +96,22 @@ public class VirtualRenderWorld extends Level implements FlywheelWorld {
 
 	// MEANINGFUL OVERRIDES
 
+	@Override
+	public boolean setBlock(BlockPos pos, BlockState newState, int flags) {
+		blocksAdded.put(pos, newState);
+
+		SectionPos sectionPos = SectionPos.of(pos);
+		if (spannedSections.add(sectionPos)) {
+			lighter.updateSectionStatus(sectionPos, false);
+		}
+
+		if ((flags & Block.UPDATE_SUPPRESS_LIGHT) == 0) {
+			lighter.checkBlock(pos);
+		}
+
+		return true;
+	}
+
 	@Override
 	public int getHeight() {
 		return height;
@@ -134,22 +150,6 @@ public class VirtualRenderWorld extends Level implements FlywheelWorld {
 		return setBlock(pos, state, 0);
 	}
 
-	@Override
-	public boolean setBlock(BlockPos pos, BlockState newState, int flags) {
-		blocksAdded.put(pos, newState);
-
-		SectionPos sectionPos = SectionPos.of(pos);
-		if (spannedSections.add(sectionPos)) {
-			lighter.updateSectionStatus(sectionPos, false);
-		}
-
-		if ((flags & Block.UPDATE_SUPPRESS_LIGHT) == 0) {
-			lighter.checkBlock(pos);
-		}
-
-		return true;
-	}
-
 	@Override
 	@Nullable
 	public BlockEntity getBlockEntity(BlockPos pos) {