package fyresmodjam.worldgen;

import java.util.Random;

import cpw.mods.fml.common.IWorldGenerator;
import fyresmodjam.ModjamMod;
import fyresmodjam.misc.ConfigData;
import net.minecraft.block.Block;
import net.minecraft.init.Blocks;
import net.minecraft.world.World;
import net.minecraft.world.chunk.IChunkProvider;

public class PillarGen implements IWorldGenerator {
	@Override
	public void generate(Random random, int chunkX, int chunkZ, World world, IChunkProvider chunkGenerator,
			IChunkProvider chunkProvider) {
		if (ConfigData.spawnRandomPillars && world.provider.dimensionId == 0
				&& random.nextInt(ConfigData.pillarGenChance) == 0) {
			boolean placed = false;

			int max = random.nextInt(ConfigData.maxPillarsPerChunk) + 1;

			for (int y = 127, added = 0; y > 30 && !placed && added < max; y--) {
				for (int x = chunkX * 16; x < chunkX * 16 + 16 && !placed && added < max; x++) {
					for (int z = chunkZ * 16; z < chunkZ * 16 + 16 && !placed && added < max; z++) {
						if (random.nextInt(15) != 0 || world.isAirBlock(x, y, z)
								|| world.getBlock(x, y, z).isReplaceable(world, x, y, z)
								|| world.getBlock(x, y, z) == ModjamMod.blockTrap
								|| world.getBlock(x, y, z) == Blocks.leaves) {
							continue;
						}

						Block block = ModjamMod.blockPillar;

						if (block.canPlaceBlockAt(world, x, y + 1, z)) {
							world.setBlock(x, y + 1, z, block);
							world.setBlockMetadataWithNotify(x, y + 1, z, 0, 0);

							world.setBlock(x, y + 2, z, block);
							world.setBlockMetadataWithNotify(x, y + 2, z, 1, 0);

							placed = random.nextBoolean();

							y -= 10;
							added++;
						}
					}
				}
			}
		}
	}
}