World Generator

package com.penumbral.steelworks.world;

import java.util.Random;

import net.minecraft.block.Block;
import net.minecraft.block.state.pattern.BlockHelper;
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;

import com.penumbral.steelworks.init.SteelworksBlocks;

public class OreGeneration implements IWorldGenerator{

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

    private void generateEnd(World world, Random random, int x, int z) {

    }

    public void generateOverworld(World world, Random random, int x, int z) {

        int x1 = x + random.nextInt(16);
        int y = 0 + random.nextInt(64-0);
        int z1 = z + random.nextInt(16);

        (new FireClayGen(SteelworksBlocks.fire_clayblock, 100)).generate(world, random, new BlockPos(x1, y, z1));
    }

    private void generateNether(World world, Random random, int x, int z) {

    }

    public void generateOre(Block block, World world, Random random, int posX, int posZ, int minVein, int maxVein, int spawnChance, int minY, int maxY)
    {
        WorldGenMinable gen = new WorldGenMinable(block.getDefaultState(), (minVein + random.nextInt(maxVein - minVein)), BlockHelper.forBlock(Blocks.clay));
        for (int i = 0; i < spawnChance; i++) {
            int xPos = posX + random.nextInt(16);
            int yPos = minY + random.nextInt(maxY - minY);
            int zPos = posZ + random.nextInt(16);
            gen.generate(world, random, new BlockPos(xPos, yPos, zPos));
        }
    }
}