private Overworld plugin;

    public OverworldGenerator(Overworld instance) {
        this.plugin = instance;
    }

    private int coordsToInt(int x, int y, int z) {
        return (x*16+z) * 128 + y;
    }

    public List<BlockPopulator> getDefaultPopulators(World world) {
        return new ArrayList<>();
    }

    public Location getFixedSpawnLocation(World world, Random random) {
        return new Location(world, 0.5, 27, 0.5);
    }

    public byte[] generate(World world, Random rand, int chunkX, int chunkZ) {
        byte[] blocks = new byte[32768];
        int x, y, z;

        for (x = 0; x < 16; ++x) {
            for (z = 0; z < 16; ++z) {
                blocks[this.coordsToInt(x, 0, z)] = (byte) Material.BEDROCK.getId();
            }
        }

        for (y=1; y < 26; ++y) {
            for (x = 0; x < 16; ++x) {
                for (z = 0; z < 16; ++z) {
                    blocks[this.coordsToInt(x, y, z)] = (byte) Material.STAINED_CLAY.getId();
                }
            }
        }

        return blocks;

    }

}