generator = new OreClusterGenerator();
FlatLayerInfo flatlayerinfo = new FlatLayerInfo(256, Blocks.bedrock);
for (int j = flatlayerinfo.getMinY(); j < flatlayerinfo.getMinY() + flatlayerinfo.getLayerCount(); ++j) {
this.cachedBlockIDs[j] = (byte) (Block.getIdFromBlock(flatlayerinfo.func_151536_b()) & 255);
this.cachedBlockMetadata[j] = (byte) flatlayerinfo.getFillBlockMeta();
}
}