001    package net.minecraft.src;
002    
003    public class GenLayerAddMushroomIsland extends GenLayer
004    {
005        public GenLayerAddMushroomIsland(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 + 0 + (var11 + 0) * var7];
029                    int var14 = var9[var12 + 2 + (var11 + 0) * var7];
030                    int var15 = var9[var12 + 0 + (var11 + 2) * var7];
031                    int var16 = var9[var12 + 2 + (var11 + 2) * var7];
032                    int var17 = var9[var12 + 1 + (var11 + 1) * var7];
033                    this.initChunkSeed((long)(var12 + par1), (long)(var11 + par2));
034    
035                    if (var17 == 0 && var13 == 0 && var14 == 0 && var15 == 0 && var16 == 0 && this.nextInt(100) == 0)
036                    {
037                        var10[var12 + var11 * par3] = BiomeGenBase.mushroomIsland.biomeID;
038                    }
039                    else
040                    {
041                        var10[var12 + var11 * par3] = var17;
042                    }
043                }
044            }
045    
046            return var10;
047        }
048    }