WorldGenCustomStructures

package com.ButterAleks.RandomIdeas.world;

import java.util.ArrayList;
import java.util.Random;

import com.ButterAleks.RandomIdeas.blocks.BlockOfPastry;
import com.ButterAleks.RandomIdeas.init.ModBlocks;
import com.ButterAleks.RandomIdeas.world.biomes.BiomePastry;

import net.minecraft.block.Block;
import net.minecraft.init.Blocks;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraft.world.WorldType;
import net.minecraft.world.biome.BiomeSnow;
import net.minecraft.world.chunk.IChunkProvider;
import net.minecraft.world.gen.IChunkGenerator;
import net.minecraft.world.gen.feature.WorldGenerator;
import net.minecraftforge.fml.common.IWorldGenerator;
import scala.actors.threadpool.Arrays;

public class WorldGenCustomSturctures implements IWorldGenerator
{
public static final WorldGenSturcture DEATH_CAKE = new WorldGenSturcture("death_cake");
public static final WorldGenSturcture FAKE_STEAK = new WorldGenSturcture("fake_steak");
public static final WorldGenSturcture APPLE_CAKE = new WorldGenSturcture("apple_cake");
public static final WorldGenSturcture LEMON_CAKE = new WorldGenSturcture("lemon_cake");
public static final WorldGenSturcture LIME_CAKE = new WorldGenSturcture("lime_cake");
public static final WorldGenSturcture BLUEBERRY_CAKE = new WorldGenSturcture("blueberry_cake");
public static final WorldGenSturcture BLACKBERRY_CAKE = new WorldGenSturcture("blackberry_cake");
public static final WorldGenSturcture RASPBERRY_CAKE = new WorldGenSturcture("raspberry_cake");
public static final WorldGenSturcture COCONUT_CAKE = new WorldGenSturcture("coconut_cake");
public static final WorldGenSturcture ORANGE_CAKE = new WorldGenSturcture("orange_cake");


@Override
public void generate(Random random, int chunkX, int chunkZ, World world, IChunkGenerator chunkGenerator, IChunkProvider chunkProvider)
{
	switch(world.provider.getDimension())
	{
	case 3:
	break;
	case 2:
	break;
	case 1:
	break;
	case 0:
		generateStructure(DEATH_CAKE, world, random, chunkX, chunkZ, 100, Blocks.SNOW_LAYER, BiomeSnow.class);
		generateStructure(FAKE_STEAK, world, random, chunkX, chunkZ, 100, Blocks.SNOW_LAYER, BiomeSnow.class);
		generateStructure(APPLE_CAKE, world, random, chunkX, chunkZ, 100, Blocks.SNOW_LAYER, BiomeSnow.class);
		generateStructure(LEMON_CAKE, world, random, chunkX, chunkZ, 100, Blocks.SNOW_LAYER, BiomeSnow.class);
		generateStructure(LIME_CAKE, world, random, chunkX, chunkZ, 100, Blocks.SNOW_LAYER, BiomeSnow.class);
		generateStructure(BLUEBERRY_CAKE, world, random, chunkX, chunkZ, 100, Blocks.SNOW_LAYER, BiomeSnow.class);
		generateStructure(BLACKBERRY_CAKE, world, random, chunkX, chunkZ, 100, Blocks.SNOW_LAYER, BiomeSnow.class);
		generateStructure(RASPBERRY_CAKE, world, random, chunkX, chunkZ, 100, Blocks.SNOW_LAYER, BiomeSnow.class);
		generateStructure(COCONUT_CAKE, world, random, chunkX, chunkZ, 100, Blocks.SNOW_LAYER, BiomeSnow.class);
		generateStructure(ORANGE_CAKE, world, random, chunkX, chunkZ, 9999, Blocks.SNOW_LAYER, BiomeSnow.class);
	break;
	case -1:
	}
}
private void generateStructure(WorldGenerator generator, World world, Random random, int chunkX, int chunkZ, int chance, Block topBlock, Class<?>... classes)
{
	ArrayList<Class<?>> classesList = new ArrayList<Class<?>>(Arrays.asList(classes));

		int x = (chunkX * 16) + random.nextInt(15);
		int z = (chunkZ * 16) + random.nextInt(15);
        int y = calculateGenerationHeight(world, x, z, topBlock);
        BlockPos pos = new BlockPos(x, y, z);
        Class<?> biome = world.provider.getBiomeForCoords(pos).getClass();

        if(world.getWorldType() != WorldType.FLAT)
        {
        	if(classesList.contains(biome))
        	{
        		if(random.nextInt(chance) == 0)
        		{
        			generator.generate(world, random, pos);
        		}
        	}
        }
}
private static int calculateGenerationHeight(World world, int x, int z, Block topBlock)
{
	int y = world.getHeight();
	boolean foundGround = false;
	while(! foundGround && --y >= 0)
	{
		Block block = world.getBlockState(new BlockPos(x, y, z)).getBlock();
		foundGround  = block == topBlock;
	}
	return y;
}
}