package will11690.mechanicraft.world.gen;

import java.util.Random;

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.WorldGenerator;
import net.minecraftforge.fml.common.IWorldGenerator;

public class WorldGenCustomOres implements IWorldGenerator{

	private WorldGenerator RUBY_ORE, SAPPHIRE_ORE, COPPER_ORE, LEAD_ORE, SILVER_ORE, TIN_ORE;

	RUBY_ORE = new WorldGenMineable(ModBlock.RUBY_ORE, 3, BlockMatcher.forBlock(Blocks.STONE));
	SAPPHIRE_ORE = new WorldGenMineable(ModBlock.SAPPHIRE_ORE, 3, BlockMatcher.forBlock(Blocks.STONE));
	COPPER_ORE = new WorldGenMineable(ModBlock.COPPER_ORE, 6, BlockMatcher.forBlock(Blocks.STONE));
	LEAD_ORE = new WorldGenMineable(ModBlock.LEAD_ORE, 6, BlockMatcher.forBlock(Blocks.STONE));
	SILVER_ORE = new WorldGenMineable(ModBlock.SILVER_ORE, 6, BlockMatcher.forBlock(Blocks.STONE));
	TIN_ORE = new WorldGenMineable(ModBlock.TIN_ORE, 6, BlockMatcher.forBlock(Blocks.STONE));

	@Override
	public void generate(Random random, int chunkX, int chunkZ, World world, IChunkGenerator chunkGenerator, IChunkProvider chunkProvider){

		switch(world.provider.getDimension()){

		case 0:

			runGenerator(RUBY_ORE, world, random, chunkX, chunkZ, 20, 0, 15);
			runGenerator(SAPPHIRE_ORE, world, random, chunkX, chunkZ, 20, 0, 15);
			runGenerator(COPPER_ORE, world, random, chunkX, chunkZ, 40, 5, 67);
			runGenerator(LEAD_ORE, world, random, chunkX, chunkZ, 40, 5, 67);
			runGenerator(SILVER_ORE, world, random, chunkX, chunkZ, 30, 5, 33);
			runGenerator(TIN_ORE, world, random, chunkX, chunkZ, 40, 5, 67);

			break;

		}

	}

	private void runGenerator(WorldGenerator gen, World world, Random rand, int chunkX, int chunkY, int chunkZ, int chance, int minHeight, int maxHeight) {

			if(minHeight > maxHeight || minHeight < 0 || maxHeight > 256) throw new IllegalArgumentException("Ore generated out of bounds");

			int heightDiff = maxHeight - minHeight + 1;

			for(int i = 0; i < chance; i++){

				int x = chunkX * 16 + rand.nextInt(16);
				int y = minHeight + rand.nextInt(heightDiff);
				int z = chunkZ * 16 + rand.nextInt(16);

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

		}

	}

}