Ore Generation

package com.dylann6466.world;

import java.util.Random;

import com.dylann6466.Main.MainRegistry;

import net.minecraft.block.Block;
import net.minecraft.block.state.IBlockState;
import net.minecraft.init.Blocks;
import net.minecraft.util.BlockPos;
import net.minecraft.world.World;
import net.minecraft.world.chunk.IChunkProvider;
import net.minecraft.world.gen.feature.WorldGenMinable;
import net.minecraftforge.fml.common.IWorldGenerator;

public class WorldOreGen implements IWorldGenerator {

	@Override
	public void generate(Random random, int chunkX, int chunkZ, World world, IChunkProvider chunkGenerator, IChunkProvider chunkProvider)
	{
		switch(world.provider.getDimensionId())
		{
		case -1:
			GenerateNether(world, chunkX * 16, chunkZ * 16, random);
			break;
		case 0:
			GenerateOverworld(world, chunkX * 16, chunkZ * 16, random);
			break;
		case 1:
			GenerateEnd(world, chunkX * 16, chunkZ * 16, random);
			break;
		}
	}

	private void addOre(Block block, Block blockSpawn, Random random, World world, int posX, int posZ, int minY, int maxY, int minVein, int maxVein, int SpawnChance)
	{
		for(int i = 0; i < SpawnChance; i++)
		{
			int defaultChunkSize = 16;

			int Xpos = posX + random.nextInt(defaultChunkSize);
			int Ypos = minY + random.nextInt(maxY - minY);
			int Zpos = posZ + random.nextInt(defaultChunkSize);

			IBlockState state = block.getDefaultState();
			BlockPos blockPos = new BlockPos(Xpos, Ypos, Zpos);

			new WorldGenMinable(state, maxVein).generate(world, random, blockPos);
			System.out.println("Ore Generated: " + blockPos);
		}
	}

	private void GenerateEnd(World world, int i, int j, Random random)
	{

	}

	private void GenerateOverworld(World world, int i, int j, Random random)
	{
		addOre(MainRegistry.copperOre, Blocks.stone, random, world, i, j, 15, 100, 4, 8, 40);
	}

	private void GenerateNether(World world, int i, int j, Random random)
	{

	}

}