BiomesOPlenty/src/minecraft/biomesoplenty/worldgen/WorldGenIceSheet.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 WorldGenIceSheet extends WorldGenerator
{
	@Override
	public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5)
	{
		int var6 = par3;
		int var89;

		for (int var7 = par5; par4 < 63; ++par4)
		{
			var89 = par1World.getBlockId(par3, par4 - 1, par5);

			if ((var89 == Block.waterStill.blockID) && par4 < 256 - var6 - 1)
			{
				for (int var8 = 2; var8 <= 5; ++var8)
				{
					par1World.setBlock(par3, par4, par5, Block.ice.blockID);
					par1World.setBlock(par3 - 1, par4, par5, Block.ice.blockID);
					par1World.setBlock(par3 + 1, par4, par5, Block.ice.blockID);
					par1World.setBlock(par3, par4, par5 - 1, Block.ice.blockID);
					par1World.setBlock(par3, par4, par5 + 1, Block.ice.blockID);

					if (par2Random.nextInt(30) == 0)
					{
						par1World.setBlock(par3 - 1, par4, par5 - 1, Block.ice.blockID);
						par1World.setBlock(par3 + 1, par4, par5 + 1, Block.ice.blockID);
						par1World.setBlock(par3 + 1, par4, par5 - 1, Block.ice.blockID);
						par1World.setBlock(par3 - 1, par4, par5 + 1, Block.ice.blockID);

						par1World.setBlock(par3, par4 + 1, par5, Block.ice.blockID);
						par1World.setBlock(par3 - 1, par4 + 1, par5, Block.ice.blockID);
						par1World.setBlock(par3 + 1, par4 + 1, par5, Block.ice.blockID);
						par1World.setBlock(par3, par4 + 1, par5 - 1, Block.ice.blockID);
						par1World.setBlock(par3, par4 + 1, par5 + 1, Block.ice.blockID);

						par1World.setBlock(par3, par4 + 2, par5, Block.ice.blockID);

						par1World.setBlock(par3, par4 - 1, par5, Block.ice.blockID);
						par1World.setBlock(par3 - 1, par4 - 1, par5, Block.ice.blockID);
						par1World.setBlock(par3 + 1, par4 - 1, par5, Block.ice.blockID);
						par1World.setBlock(par3, par4 - 1, par5 - 1, Block.ice.blockID);
						par1World.setBlock(par3, par4 - 1, par5 + 1, Block.ice.blockID);

						par1World.setBlock(par3, par4 - 2, par5, Block.ice.blockID);
					}

					break;
				}
			}
			else
			{
				par3 = var6 + par2Random.nextInt(4) - par2Random.nextInt(4);
				par5 = var7 + par2Random.nextInt(4) - par2Random.nextInt(4);
			}
		}

		return true;
	}
}