PlanetWorldGenerator.java MyOwnPlanet Bukkit Plugin

package me.sebagius7110.sebcraft.minigame.MyOwnPlanetWorldGnerator.Generation;

import java.util.*;
import java.util.Random;

import me.sebagius7110.sebcraft.minigame.MyOwnPlanetWorldGenerator.main.MyOwnPlanetWorldGenerator;

import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.generator.BlockPopulator;
import org.bukkit.generator.ChunkGenerator;

public class PlanetWorldGenerator extends ChunkGenerator{

    MyOwnPlanetWorldGenerator plugin;

    public PlanetWorldGenerator(MyOwnPlanetWorldGenerator instance) {

        plugin = instance;

    }

    public Location getFixedSpawnLocation(World world, Random random) {

        return new Location(world, 0, 0, 0);

    }

    public List<BlockPopulator> getDefaultPopulators(World world) {

        return new ArrayList<BlockPopulator>();

    }

    @SuppressWarnings("deprecation")
    public byte[][] generatorBlockSections(World world, Random random, int chunkX, int chunkY, BiomeGrid biomeGrid) {

        byte[][] result = new byte[256 / 16][];

        int x, y, z;

        for (x = 0; x<16;x++) {

            for (z = 0; z<16;z++) {

                setBlock(result, x, 0, z, (byte) Material.AIR.getId());

            }

        }

        for (x = 0; x<16;x++) {

            for (z = 0; z<16;z++) {

                for (y = 1; y<=2;y++) {

                    setBlock(result, x, y, z, (byte) Material.AIR.getId());

                }
            }

        }

        return result;
    }

    @Override
    public short[][] generateExtBlockSections(World world, Random random, int ChunkX,
            int ChunkZ, BiomeGrid biomes) {

        short[][] result = new short[256 / 16][];

        int x, y, z;

        for (x = 0; x<16;x++) {

            for (z = 0; z<16;z++) {

                setBlock(result, x, 0, z, (short) Material.AIR.getId());

            }

        }

        for (x = 0; x<16;x++) {

            for (z = 0; z<16;z++) {

                for (y = 1; y<=2;y++) {

                    setBlock(result, x, y, z, (short) Material.AIR.getId());

                }
            }

        }

        return result;

    }

    private void setBlock(byte[][] result, int x, int y, int z, byte blockId) {

        if(result[y >> 4] == null) {

            result[y >> 4] = new byte[4096];

        }

        result[y >> 4][((y&0xF) << 8) | (z << 4) | x] = blockId;

    }

private void setBlock(short[][] result, int x, int y, int z, short blockId) {

        if(result[y >> 4] == null) {

            result[y >> 4] = new short[4096];

        }

        result[y >> 4][((y&0xF) << 8) | (z << 4) | x] = blockId;

    }

}