package net.minecraft.world.gen.layer;
import net.minecraft.world.biome.BiomeGenBase;
public class GenLayerHills extends GenLayer
{
public GenLayerHills(long par1, GenLayer par3GenLayer)
{
super(par1);
this.parent = par3GenLayer;
}
/**
* Returns a list of integer values generated by this layer. These may be interpreted as temperatures, rainfall
* amounts, or biomeList[] indices based on the particular GenLayer subclass.
*/
public int[] getInts(int par1, int par2, int par3, int par4)
{
int[] aint = this.parent.getInts(par1 - 1, par2 - 1, par3 + 2, par4 + 2);
int[] aint1 = IntCache.getIntCache(par3 * par4);
for (int i1 = 0; i1 < par4; ++i1)
{
for (int j1 = 0; j1 < par3; ++j1)
{
this.initChunkSeed((long)(j1 + par1), (long)(i1 + par2));
int k1 = aint[j1 + 1 + (i1 + 1) * (par3 + 2)];
if (this.nextInt(3) == 0)
{
int l1 = k1;
if (k1 == BiomeGenBase.desert.biomeID)
{
l1 = BiomeGenBase.desertHills.biomeID;
}
else if (k1 == BiomeGenBase.forest.biomeID)
{
l1 = BiomeGenBase.forestHills.biomeID;
}
else if (k1 == BiomeGenBase.taiga.biomeID)
{
l1 = BiomeGenBase.taigaHills.biomeID;
}
else if (k1 == BiomeGenBase.plains.biomeID)
{
l1 = BiomeGenBase.forest.biomeID;
}
else if (k1 == BiomeGenBase.icePlains.biomeID)
{
l1 = BiomeGenBase.iceMountains.biomeID;
}
else if (k1 == BiomeGenBase.jungle.biomeID)
{
l1 = BiomeGenBase.jungleHills.biomeID;
}
if (l1 == k1)
{
aint1[j1 + i1 * par3] = k1;
}
else
{
int i2 = aint[j1 + 1 + (i1 + 1 - 1) * (par3 + 2)];
int j2 = aint[j1 + 1 + 1 + (i1 + 1) * (par3 + 2)];
int k2 = aint[j1 + 1 - 1 + (i1 + 1) * (par3 + 2)];
int l2 = aint[j1 + 1 + (i1 + 1 + 1) * (par3 + 2)];
if (i2 == k1 && j2 == k1 && k2 == k1 && l2 == k1)
{
aint1[j1 + i1 * par3] = l1;
}
else
{
aint1[j1 + i1 * par3] = k1;
}
}
}
else
{
aint1[j1 + i1 * par3] = k1;
}
}
}
return aint1;
}
}