WorldGen.java

package com.miningmark48.pearcelmod.init;

import com.miningmark48.pearcelmod.handler.ConfigurationHandler;
import net.minecraft.block.Block;
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.IChunkGenerator;
import net.minecraft.world.chunk.IChunkProvider;
import net.minecraft.world.gen.feature.WorldGenMinable;
import net.minecraftforge.fml.common.IWorldGenerator;

import java.util.Random;

public class WorldGen implements IWorldGenerator{

    @Override
    public void generate(Random random, int chunkX, int chunkZ, World world, IChunkGenerator chunkGenerator, IChunkProvider chunkProvider) {
        switch(world.provider.getDimension()){
            case -1: //Nether
                generateNether(world, random, chunkX, chunkZ);
                break;
            case 0: //Overworld
                generateSurface(world, random, chunkX, chunkZ);
                break;
            case 1: //End
                generateEnd(world, random, chunkX, chunkZ);
                break;
        }

    }

    private void generateNether(World world, Random rand, int x, int z)
    {
        if (ConfigurationHandler.doWorldGen) {
            generateOre(ModBlocks.nether_pearcel_ore, world, rand, x, z, 3, 6, 15, 10, 60, Blocks.NETHERRACK);
        }
    }

    private void generateSurface(World world, Random rand, int x, int z)
    {
        if (ConfigurationHandler.doWorldGen) {
            generateOre(ModBlocks.pearcel_ore, world, rand, x, z, 2, 6, 10, 10, 70, Blocks.STONE);
            generateOre(ModBlocks.fools_pearcel_ore, world, rand, x, z, 2, 6, 15, 35, 65, Blocks.STONE);
            generateOre(ModBlocks.pearcel_matter_ore, world, rand, x, z, 2, 4, 5, 10, 40, Blocks.STONE);
            generateOre(ModBlocks.dense_pearcel_ore, world, rand, x, z, 2, 6, 10, 10, 30, Blocks.STONE);
            generateOre(ModBlocks.dense_pearcel_matter_ore, world, rand, x, z, 1, 3, 5, 5, 15, Blocks.STONE);
        }

        if (ConfigurationHandler.doSpecialWorldGen){
            generateOre(ModBlocks.pearcel_stone, world, rand, x, z, 1, 15, 20, 10, 64, Blocks.STONE);
            generateOre(ModBlocks.pearcel_sand, world, rand, x, z, 1, 50, 30, 10, 64, Blocks.SAND);
        }

    }


    private void generateEnd(World world, Random rand, int x, int z)
    {
        if (ConfigurationHandler.doWorldGen) {
            generateOre(ModBlocks.ender_pearcel_ore, world, rand, x, z, 3, 12, 10, 10, 60, Blocks.END_STONE);
        }
    }

    public void generateOre(Block block, World world, Random random, int chunkX, int chunkZ, int minVeinSize, int maxVeinSize, int chance, int minY, int maxY, Block generateIn)
    {
        int veinSize = minVeinSize + random.nextInt(maxVeinSize - minVeinSize);
        int heightRange = maxY - minY;
        WorldGenMinable gen = new WorldGenMinable(block.getDefaultState(), veinSize, BlockMatcher.forBlock(generateIn));
        for (int i = 0; i < chance; i++){
            int xRand = chunkX * 16 + random.nextInt(16);
            int yRand = random.nextInt(heightRange) + minY;
            int zRand = chunkZ * 16 + random.nextInt(16);
            gen.generate(world, random, new BlockPos(xRand, yRand, zRand));
            //LogHelper.info("Ore at " + xRand + " " + yRand + " " + zRand);
        }
    }
}