001    package net.minecraft.src;
002    
003    public class GenLayerAddSnow extends GenLayer
004    {
005        public GenLayerAddSnow(long par1, GenLayer par3GenLayer)
006        {
007            super(par1);
008            this.parent = par3GenLayer;
009        }
010    
011        /**
012         * Returns a list of integer values generated by this layer. These may be interpreted as temperatures, rainfall
013         * amounts, or biomeList[] indices based on the particular GenLayer subclass.
014         */
015        public int[] getInts(int par1, int par2, int par3, int par4)
016        {
017            int var5 = par1 - 1;
018            int var6 = par2 - 1;
019            int var7 = par3 + 2;
020            int var8 = par4 + 2;
021            int[] var9 = this.parent.getInts(var5, var6, var7, var8);
022            int[] var10 = IntCache.getIntCache(par3 * par4);
023    
024            for (int var11 = 0; var11 < par4; ++var11)
025            {
026                for (int var12 = 0; var12 < par3; ++var12)
027                {
028                    int var13 = var9[var12 + 1 + (var11 + 1) * var7];
029                    this.initChunkSeed((long)(var12 + par1), (long)(var11 + par2));
030    
031                    if (var13 == 0)
032                    {
033                        var10[var12 + var11 * par3] = 0;
034                    }
035                    else
036                    {
037                        int var14 = this.nextInt(5);
038    
039                        if (var14 == 0)
040                        {
041                            var14 = BiomeGenBase.icePlains.biomeID;
042                        }
043                        else
044                        {
045                            var14 = 1;
046                        }
047    
048                        var10[var12 + var11 * par3] = var14;
049                    }
050                }
051            }
052    
053            return var10;
054        }
055    }