Pupulator

@Override
    public void populate(World world, MutableBlockVolume buffer, ImmutableBiomeVolume biomes) {

        for (int x = buffer.getBlockMin().getX(); x <= buffer.getBlockMax().getX(); x++) {
            for (int z = buffer.getBlockMin().getZ(); z <= buffer.getBlockMax().getZ(); z++) {
                if(draw(x) && draw(z)) {
                    for(int y = getDefaultDepth(x, z); y < getDefaultHeight(x, z); y++) {
                        if (genYet(x, z)) {
                            buffer.setBlockType(x, y, z, BlockTypes.STONE);
                        }
                    }
                }
            }
        }
    }