BiomesOPlenty/common/biomesoplenty/world/layer/BiomeLayerFuzzyZoom.java

77 lines
1.8 KiB
Java

package biomesoplenty.world.layer;
import net.minecraft.world.gen.layer.IntCache;
public class BiomeLayerFuzzyZoom extends BiomeLayer
{
public BiomeLayerFuzzyZoom(long par1, BiomeLayer par3GenLayer)
{
super(par1);
super.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.
*/
@Override
public int[] getInts(int par1, int par2, int par3, int par4)
{
int i1 = par1 >> 1;
int j1 = par2 >> 1;
int k1 = (par3 >> 1) + 3;
int l1 = (par4 >> 1) + 3;
int[] aint = parent.getInts(i1, j1, k1, l1);
int[] aint1 = IntCache.getIntCache(k1 * 2 * l1 * 2);
int i2 = k1 << 1;
int j2;
for (int k2 = 0; k2 < l1 - 1; ++k2)
{
j2 = k2 << 1;
int l2 = j2 * i2;
int i3 = aint[0 + (k2 + 0) * k1];
int j3 = aint[0 + (k2 + 1) * k1];
for (int k3 = 0; k3 < k1 - 1; ++k3)
{
this.initChunkSeed(k3 + i1 << 1, k2 + j1 << 1);
int l3 = aint[k3 + 1 + (k2 + 0) * k1];
int i4 = aint[k3 + 1 + (k2 + 1) * k1];
aint1[l2] = i3;
aint1[l2++ + i2] = this.choose(i3, j3);
aint1[l2] = this.choose(i3, l3);
aint1[l2++ + i2] = this.choose(i3, l3, j3, i4);
i3 = l3;
j3 = i4;
}
}
int[] aint2 = IntCache.getIntCache(par3 * par4);
for (j2 = 0; j2 < par4; ++j2)
{
System.arraycopy(aint1, (j2 + (par2 & 1)) * (k1 << 1) + (par1 & 1), aint2, j2 * par3, par3);
}
return aint2;
}
/**
* randomly choose between the two args
*/
protected int choose(int par1, int par2)
{
return this.nextInt(2) == 0 ? par1 : par2;
}
/**
* randomly choose between the four args
*/
protected int choose(int par1, int par2, int par3, int par4)
{
int i1 = this.nextInt(4);
return i1 == 0 ? par1 : (i1 == 1 ? par2 : (i1 == 2 ? par3 : par4));
}
}