    001    package net.minecraft.src;
    002
    003    public class GenLayerRiver extends GenLayer
    004    {
    005        public GenLayerRiver(long par1, GenLayer par3GenLayer)
    006        {
    007            super(par1);
    008            super.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 + 1) * var7];
    029                    int var14 = var9[var12 + 2 + (var11 + 1) * var7];
    030                    int var15 = var9[var12 + 1 + (var11 + 0) * var7];
    031                    int var16 = var9[var12 + 1 + (var11 + 2) * var7];
    032                    int var17 = var9[var12 + 1 + (var11 + 1) * var7];
    033
    034                    if (var17 != 0 && var13 != 0 && var14 != 0 && var15 != 0 && var16 != 0 && var17 == var13 && var17 == var15 && var17 == var14 && var17 == var16)
    035                    {
    036                        var10[var12 + var11 * par3] = -1;
    037                    }
    038                    else
    039                    {
    040                        var10[var12 + var11 * par3] = BiomeGenBase.river.biomeID;
    041                    }
    042                }
    043            }
    044
    045            return var10;
    046        }
    047    }