WorldGenCustomOres

package com.camellias.blight.world.gen;

import java.util.Random;

import com.camellias.blight.init.ModBlocks;

import net.minecraft.block.state.pattern.BlockMatcher;
import net.minecraft.init.Blocks;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraft.world.chunk.IChunkProvider;
import net.minecraft.world.gen.IChunkGenerator;
import net.minecraft.world.gen.feature.WorldGenMinable;
import net.minecraft.world.gen.feature.WorldGenerator;
import net.minecraftforge.fml.common.IWorldGenerator;

public class WorldGenCustomOres implements IWorldGenerator
{
    private WorldGenerator blighted_dirt;

    public WorldGenCustomOres()
    {
        blighted_dirt = new WorldGenMinable(ModBlocks.BLIGHTEDDIRT.getDefaultState(), 1, BlockMatcher.forBlock(Blocks.DIRT));
    }

    @Override
    public void generate(Random random, int chunkX, int chunkZ, World world, IChunkGenerator chunkGenerator, IChunkProvider chunkProvider)
    {
        runGenerator(blighted_dirt, world, random, chunkX, chunkZ, 1, 0, 128);
    }

    private void runGenerator(WorldGenerator gen, World world, Random random, int chunkX, int chunkZ, int chance, int minHeight, int maxHeight)
    {
        if(minHeight > maxHeight || minHeight > 0 || maxHeight > 256) throw new IllegalArgumentException("Generated out of bounds");

        int heightDiff = maxHeight - minHeight + 1;
        for(int i = 0; i < chance; i++)
        {
            int x = chunkX * 16 + random.nextInt(16);
            int y = minHeight + random.nextInt(heightDiff);
            int z = chunkZ * 16 + random.nextInt(16);

            gen.generate(world, random, new BlockPos(x, y, z));
        }
    }
}