[1.6.4] Metadata Biome Top/Filler blocks

Hi,

I was coding in a new biome for SpaceAge, when I realised something: the biome engine has no support for metadata blocks. I had a look around, and the closest thing I found to a tutorial was this:

I have not done any world generation that requires metadata blocks so i can only give you the steps you would need to do/figure out.

Hope it helps, also it may be worth to check if any of the biome mods have done anything similar like extrabiomesxl or biomes o plenty etc...

 

1. You would need to add metadata variable to BiomeGenBase so you would need to make custom one:

public byte topBlockMeta;
public byte fillerBlockMeta;

 

2. You need to make custom ChunkProviderGenerate and add an array for the metadata info:

byte[] abyteMeta = new byte[32768];

 

3. replaceBlocksForBiome in ChunkProviderGenerate assigns topblock and fillerblock id to abyte array you would need to make similar method that puts metadata info to abyteMeta array.

4. Finally

Chunk chunk = new Chunk(this.worldObj, abyte, par1, par2);
// Change in to:
Chunk chunk = new Chunk(this.worldObj, abyte, abyteMeta, par1, par2);

The third instruction was a bit vague and didn't tell you how to exactly. I want to know how to do that. All other mods seem to stray away from metadata blocks in world generation.

Thanks,

SKYLORDJOEL

PS: Here is my replace blocks for biome method:

	public void replaceBlocksForBiome(int par1, int par2, byte[] par3ArrayOfByte, BiomeGenBase[] par4ArrayOfBiomeGenBase) {
	ChunkProviderEvent.ReplaceBiomeBlocks event = new ChunkProviderEvent.ReplaceBiomeBlocks(this, par1, par2, par3ArrayOfByte, par4ArrayOfBiomeGenBase);
	MinecraftForge.EVENT_BUS.post(event);
	if (event.getResult() == Result.DENY) {
		return;
	}

	byte b0 = 63;
	double d0 = 0.03125D;
	this.stoneNoise = this.noiseGen4.generateNoiseOctaves(this.stoneNoise, par1 * 16, par2 * 16, 0, 16, 16, 1, d0 * 2.0D, d0 * 2.0D, d0 * 2.0D);

	for (int k = 0; k < 16; ++k) {
		for (int l = 0; l < 16; ++l) {
			BiomeGenBase biomegenbase = par4ArrayOfBiomeGenBase[l + k * 16];
			float f = biomegenbase.getFloatTemperature();
			int i1 = (int) (this.stoneNoise[k + l * 16] / 3.0D + 3.0D + this.rand.nextDouble() * 0.25D);
			int j1 = -1;
			byte topBlock = biomegenbase.topBlock;
			byte fillerBlock = biomegenbase.fillerBlock;

			byte topBlockMeta = biomegenplanets.topBlockMeta;
			byte fillerBlockMeta = biomegenplanets.fillerBlockMeta;

			for (int k1 = 127; k1 >= 0; --k1) {
				int l1 = (l * 16 + k) * 128 + k1;

				if (k1 <= 0 + this.rand.nextInt(5)) {
					par3ArrayOfByte[l1] = (byte) Block.bedrock.blockID;
				} else {
					byte b3 = par3ArrayOfByte[l1]; //block id for current block

					if (b3 == 0) {
						j1 = -1;
					} else if (b3 == SpaceAgeCore.hadesSurfaceID) { //originally stone - used cause the generator generates stone first
						if (j1 == -1) {
							if (i1 <= 0) {
								topBlock = 0;
								fillerBlock = (byte) SpaceAgeCore.hadesSurfaceID;//originally stone - under top and filler
							} else if (k1 >= b0 - 4 && k1 <= b0 + 1) {
								topBlock = biomegenbase.topBlock;
								fillerBlock = biomegenbase.fillerBlock;
							}

							if (k1 < b0 && topBlock == 0) {
								if (f < 0.15F) {
									topBlock = (byte) Block.ice.blockID; //lakes
								}
							}

							j1 = i1;

							if (k1 >= b0 - 1) {
								par3ArrayOfByte[l1] = topBlock;
							} else {
								par3ArrayOfByte[l1] = fillerBlock;
							}
						} else if (j1 > 0) {
							--j1;
							par3ArrayOfByte[l1] = fillerBlock;

							if (j1 == 0 && fillerBlock == SpaceAgeCore.hadesSurfaceID) { //originally sand
								j1 = this.rand.nextInt(4);
								fillerBlock = (byte) SpaceAgeCore.hadesSurfaceID; //sandstone
							}
						}
					}
				}
			}
		}
	}
}