001package net.minecraft.world.gen;
002
003import java.util.Random;
004import net.minecraft.world.World;
005import net.minecraft.world.chunk.IChunkProvider;
006
007public class MapGenBase
008{
009    /** The number of Chunks to gen-check in any given direction. */
010    protected int range = 8;
011
012    /** The RNG used by the MapGen classes. */
013    protected Random rand = new Random();
014
015    /** This world object. */
016    protected World worldObj;
017
018    public void generate(IChunkProvider par1IChunkProvider, World par2World, int par3, int par4, byte[] par5ArrayOfByte)
019    {
020        int k = this.range;
021        this.worldObj = par2World;
022        this.rand.setSeed(par2World.getSeed());
023        long l = this.rand.nextLong();
024        long i1 = this.rand.nextLong();
025
026        for (int j1 = par3 - k; j1 <= par3 + k; ++j1)
027        {
028            for (int k1 = par4 - k; k1 <= par4 + k; ++k1)
029            {
030                long l1 = (long)j1 * l;
031                long i2 = (long)k1 * i1;
032                this.rand.setSeed(l1 ^ i2 ^ par2World.getSeed());
033                this.recursiveGenerate(par2World, j1, k1, par3, par4, par5ArrayOfByte);
034            }
035        }
036    }
037
038    /**
039     * Recursively called by generate() (generate) and optionally by itself.
040     */
041    protected void recursiveGenerate(World par1World, int par2, int par3, int par4, int par5, byte[] par6ArrayOfByte) {}
042}