001    package net.minecraft.src;
002    
003    import java.util.Random;
004    
005    public class MapGenBase
006    {
007        /** The number of Chunks to gen-check in any given direction. */
008        protected int range = 8;
009    
010        /** The RNG used by the MapGen classes. */
011        protected Random rand = new Random();
012    
013        /** This world object. */
014        protected World worldObj;
015    
016        public void generate(IChunkProvider par1IChunkProvider, World par2World, int par3, int par4, byte[] par5ArrayOfByte)
017        {
018            int var6 = this.range;
019            this.worldObj = par2World;
020            this.rand.setSeed(par2World.getSeed());
021            long var7 = this.rand.nextLong();
022            long var9 = this.rand.nextLong();
023    
024            for (int var11 = par3 - var6; var11 <= par3 + var6; ++var11)
025            {
026                for (int var12 = par4 - var6; var12 <= par4 + var6; ++var12)
027                {
028                    long var13 = (long)var11 * var7;
029                    long var15 = (long)var12 * var9;
030                    this.rand.setSeed(var13 ^ var15 ^ par2World.getSeed());
031                    this.recursiveGenerate(par2World, var11, var12, par3, par4, par5ArrayOfByte);
032                }
033            }
034        }
035    
036        /**
037         * Recursively called by generate() (generate) and optionally by itself.
038         */
039        protected void recursiveGenerate(World par1World, int par2, int par3, int par4, int par5, byte[] par6ArrayOfByte) {}
040    }