GOMCWorldGen.java

package com.josh.gomc;

import java.util.Random;



import cpw.mods.fml.common.IWorldGenerator;
import net.minecraft.init.Blocks;
import net.minecraft.world.World;
import net.minecraft.world.chunk.IChunkProvider;
import net.minecraft.world.gen.feature.WorldGenMinable;
import net.minecraft.world.gen.feature.WorldGenerator;

public class GOMCWorldGen implements IWorldGenerator{

    private WorldGenerator gen_ChaosOre; //Generates Chaos Ore
    private WorldGenerator gen_OrdOre; //Generates Order Ore
    private WorldGenerator gen_CaelumOre; //Generates Caelum Ore
    private WorldGenerator gen_WeakOrsOre; //Generates Weak Orsus Ore
    private WorldGenerator gen_InfernumOre;


    public GOMCWorldGen() {
        this.gen_ChaosOre = new WorldGenMinable(Main.blockChaosOre, 5, Blocks.netherrack);
        this.gen_OrdOre = new WorldGenMinable(Main.blockOrdOre, 7, Blocks.end_stone);
        this.gen_CaelumOre = new WorldGenMinable(Main.blockCaelumOre, 3, Blocks.air);
        this.gen_WeakOrsOre = new WorldGenMinable(Main.blockWeakOrsOre, 5);
        this.gen_InfernumOre = new WorldGenMinable(Main.blockInfernumOre, 7, Blocks.lava);
    }
    private void runGenerator(WorldGenerator generator, World world, Random rand, int chunk_X, int chunk_Z, int chancesToSpawn, int minHeight, int maxHeight) {
        if (minHeight < 0 || maxHeight > 256 || minHeight > maxHeight)
            throw new IllegalArgumentException("Illegal Height Arguments for WorldGenerator");

        int heightDiff = maxHeight - minHeight + 1;
        for (int i = 0; i < chancesToSpawn; i ++) {
            int x = chunk_X * 16 + rand.nextInt(16);
            int y = minHeight + rand.nextInt(heightDiff);
            int z = chunk_Z * 16 + rand.nextInt(16);
            generator.generate(world, rand, x, y, z);
        }
    }
    @Override
    public void generate(Random random, int chunkX, int chunkZ, World world, IChunkProvider chunkGenerator,IChunkProvider chunkProvider){

        switch (world.provider.dimensionId) {
        case 0: //Overworld
            this.runGenerator(this.gen_CaelumOre, world, random, chunkX, chunkZ, 1, 150, 255);
            this.runGenerator(this.gen_WeakOrsOre, world, random, chunkX, chunkZ, 15, 30, 60);
            break;
        case -1: //Nether
            this.runGenerator(this.gen_ChaosOre, world, random, chunkX, chunkZ, 10, 0, 100);
            this.runGenerator(this.gen_InfernumOre, world, random, chunkX, chunkZ, 20, 0, 200);
            break;
        case 1: //End
            this.runGenerator(this.gen_OrdOre, world, random, chunkX, chunkZ, 25, 0, 100);
            break;
        }
    }
}