BiomesOPlenty/common/biomesoplenty/worldgen/WorldGenNetherMushroom.java

package biomesoplenty.worldgen;

import java.util.Random;

import net.minecraft.block.Block;
import net.minecraft.world.World;
import net.minecraft.world.gen.feature.WorldGenerator;

public class WorldGenNetherMushroom extends WorldGenerator
{
	/** The mushroom type. 0 for brown, 1 for red. */
	private int mushroomType = 1;

	public WorldGenNetherMushroom(int par1)
	{
		super(true);
		mushroomType = par1;
	}

	public WorldGenNetherMushroom()
	{
		super(false);
	}

	@Override
	public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5)
	{
		//int l = par2Random.nextInt(2);
		int l = 1;

		if (mushroomType >= 0)
		{
			l = mushroomType;
		}

		int i1 = par2Random.nextInt(3) + 4;
		boolean flag = true;

		if (par4 >= 1 && par4 + i1 + 1 < 256)
		{
			int j1;
			int k1;
			int l1;
			int i2;

			for (j1 = par4; j1 <= par4 + 1 + i1; ++j1)
			{
				byte b0 = 3;

				if (j1 <= par4 + 3)
				{
					b0 = 0;
				}

				for (k1 = par3 - b0; k1 <= par3 + b0 && flag; ++k1)
				{
					for (l1 = par5 - b0; l1 <= par5 + b0 && flag; ++l1)
					{
						if (j1 >= 0 && j1 < 256)
						{
							i2 = par1World.getBlockId(k1, j1, l1);

							Block block = Block.blocksList[i2];

							if (i2 != 0 && block != null && !block.isLeaves(par1World, k1, j1, l1))
							{
								flag = false;
							}
						}
						else
						{
							flag = false;
						}
					}
				}
			}

			if (!flag)
				return false;
			else
			{
				j1 = par1World.getBlockId(par3, par4 - 1, par5);

				if (j1 != Block.netherrack.blockID && j1 != Block.grass.blockID)
					return false;
				else
				{
					int j2 = par4 + i1;

					if (l == 1)
					{
						j2 = par4 + i1 - 3;
					}

					for (k1 = j2; k1 <= par4 + i1; ++k1)
					{
						l1 = 1;

						if (k1 < par4 + i1)
						{
							++l1;
						}

						if (l == 0)
						{
							l1 = 3;
						}

						for (i2 = par3 - l1; i2 <= par3 + l1; ++i2)
						{
							for (int k2 = par5 - l1; k2 <= par5 + l1; ++k2)
							{
								int l2 = 5;

								if (i2 == par3 - l1)
								{
									--l2;
								}

								if (i2 == par3 + l1)
								{
									++l2;
								}

								if (k2 == par5 - l1)
								{
									l2 -= 3;
								}

								if (k2 == par5 + l1)
								{
									l2 += 3;
								}

								if (l == 0 || k1 < par4 + i1)
								{
									if ((i2 == par3 - l1 || i2 == par3 + l1) && (k2 == par5 - l1 || k2 == par5 + l1))
									{
										continue;
									}

									if (i2 == par3 - (l1 - 1) && k2 == par5 - l1)
									{
										l2 = 1;
									}

									if (i2 == par3 - l1 && k2 == par5 - (l1 - 1))
									{
										l2 = 1;
									}

									if (i2 == par3 + (l1 - 1) && k2 == par5 - l1)
									{
										l2 = 3;
									}

									if (i2 == par3 + l1 && k2 == par5 - (l1 - 1))
									{
										l2 = 3;
									}

									if (i2 == par3 - (l1 - 1) && k2 == par5 + l1)
									{
										l2 = 7;
									}

									if (i2 == par3 - l1 && k2 == par5 + (l1 - 1))
									{
										l2 = 7;
									}

									if (i2 == par3 + (l1 - 1) && k2 == par5 + l1)
									{
										l2 = 9;
									}

									if (i2 == par3 + l1 && k2 == par5 + (l1 - 1))
									{
										l2 = 9;
									}
								}

								if (l2 == 5 && k1 < par4 + i1)
								{
									l2 = 0;
								}

								Block block = Block.blocksList[par1World.getBlockId(i2, k1, k2)];

								if ((l2 != 0 || par4 >= par4 + i1 - 1) && (block == null || block.canBeReplacedByLeaves(par1World, i2, k1, k2)))
								{
									this.setBlockAndMetadata(par1World, i2, k1, k2, Block.mushroomCapBrown.blockID + l, l2);
								}
							}
						}
					}

					for (k1 = 0; k1 < i1; ++k1)
					{
						l1 = par1World.getBlockId(par3, par4 + k1, par5);

						Block block = Block.blocksList[l1];

						if (block == null || block.canBeReplacedByLeaves(par1World, par3, par4 + k1, par5))
						{
							this.setBlockAndMetadata(par1World, par3, par4 + k1, par5, Block.mushroomCapBrown.blockID + l, 10);
						}
					}

					return true;
				}
			}
		} else
			return false;
	}
}