WorldGenFire.java

package net.minecraft.world.gen.feature;

import java.util.Random;
import net.minecraft.block.Block;
import net.minecraft.world.World;

public class WorldGenFire extends WorldGenerator
{
    public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5)
    {
        for (int var6 = 0; var6 < 64; ++var6)
        {
            int var7 = par3 + par2Random.nextInt(8) - par2Random.nextInt(8);
            int var8 = par4 + par2Random.nextInt(4) - par2Random.nextInt(4);
            int var9 = par5 + par2Random.nextInt(8) - par2Random.nextInt(8);

            if (par1World.isAirBlock(var7, var8, var9) && par1World.getBlockId(var7, var8 - 1, var9) == Block.netherrack.blockID)
            {
                par1World.setBlockWithNotify(var7, var8, var9, Block.fire.blockID);
            }
        }

        return true;
    }
}