Nofraag

no, no it does get reached the problem it's that chunk.getHeight for some reason returns -64 instead of the actual highest block on that position (the line System.out.println("block: " + state.getBlock() + ", height: " + highestY);) keeps printing block: minecraft:void_air, height: -64

@SubscribeEvent public void onChunkLoad(ChunkEvent.Load event) { if (!(event.getLevel() instanceof Level level) || !event.isNewChunk()) return; if (level.isClientSide()) { ChunkAccess chunk = event.getChunk(); ChunkPos pos = chunk.getPos(); Vector2i coordinatesToWorld = new Vector2i(pos.x * 16, pos.z * 16); Vector2i chunk_origin = new Vector2i( Math.floorMod(coordinatesToWorld.x, 512), Math.floorMod(coordinatesToWorld.y, 512) ); Vector2i region_coordinates = new Vector2i( pos.getRegionX(), pos.getRegionZ() ); int[] colors_data = new int[256]; for (int z = 0; z < 16; z++) { for (int x = 0; x < 16; x++) { int highestY = chunk.getHeight( Heightmap.Types.MOTION_BLOCKING_NO_LEAVES, x, z ); BlockPos blockPos = pos.getBlockAt(x, highestY-1, z); BlockState state = level.getBlockState(blockPos); int colorsValue = getColorsValue(state); System.out.println("block: " + state.getBlock() + ", height: " + highestY); colors_data[z * 16 + x] = colorsValue; } } MinecraftServer server = ServerLifecycleHooks.getCurrentServer(); if (server != null) { ExampleMod.MOD_FOLDER.AttemptToModifyRegionArea( chunk_origin.x, chunk_origin.y, 16, 16, colors_data, new RegionRecord( level.dimension().location().toString(), server.getWorldData().getLevelName(), region_coordinates ) ); } } }