dragon nest

package com.TheRPGAdventurer.server.world;

import java.util.Random;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.init.Biomes;
import net.minecraft.init.Blocks;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraft.world.biome.BiomeHills;
import net.minecraft.world.chunk.IChunkGenerator;
import net.minecraft.world.chunk.IChunkProvider;
import net.minecraft.world.gen.structure.template.Template;
import net.minecraftforge.fml.common.IWorldGenerator;


public class ROTDWorldGenerator implements IWorldGenerator{
	//@formatter:off

	StructureDragonNests dragonNest = new StructureDragonNests();

	//@formatter:on

	@Override
	public void generate(Random random, int chunkX, int chunkZ, World world, IChunkGenerator chunkGenerator, IChunkProvider chunkProvider) {
		switch(world.provider.getDimension()) {
		case -1: //Nether
			break;
		case 0: //OverWorld (Earth)
			this.generateNests(world, random, chunkX, chunkZ, null, random);
			break;
		case 1: //End
			break;
		}
	}
	public void generateNests(World world, Random random, int chunkX, int chunkZ, BlockPos position, Random rand) {
		int x = chunkX * 16 + random.nextInt(16);
		int z = chunkZ * 16 + random.nextInt(16);
		int xy = x >> 4;
		int zy = z >> 4;
		int height = world.getChunkFromChunkCoords(xy, zy).getHeight(new BlockPos(x & 15, 0, z & 15));
		int y = height - 1;

			if(world.getBiomeForCoordsBody(new BlockPos (x,y,z)).getBiomeClass().equals(Biomes.EXTREME_HILLS)) {
				if((random.nextInt(50) + 1) <= 1) {
					boolean place = true;

					for(int j = 0; j < 6; j++) {
						for(int k = 0; k < 9; k++) {
							for(int i = 0; i < 11; i++) {
								if(world.getBlockState(new BlockPos(i + x, j + y + 1, k + z)).getBlock() == Blocks.AIR) {
									place = false;
								}
							}
						}
					}

					if(place) {
						dragonNest.generate(world, random, new BlockPos(x,y,z));
				}
			}
		}
    }
}