/**
* Finds a valid position within a range, that is in one of the listed biomes. Searches
* {par1,par2} +-par3 blocks. Strongly favors positive y positions.
*/
public ChunkPosition findBiomePosition(
int par1, int par2, int par3, List par4List, Random par5Random) {
IntCache.resetIntCache();
int var6 = par1 - par3 >> 2;
int var7 = par2 - par3 >> 2;
int var8 = par1 + par3 >> 2;
int var9 = par2 + par3 >> 2;
int var10 = var8 - var6 + 1;
int var11 = var9 - var7 + 1;
int[] var12 = this.genBiomes.getInts(var6, var7, var10, var11);
ChunkPosition var13 = null;
int var14 = 0;
for (int var15 = 0; var15 < var10 * var11; ++var15) {
int var16 = var6 + var15 % var10 << 2;
int var17 = var7 + var15 / var10 << 2;
BiomeGenBase var18 = BiomeGenBase.biomeList[var12[var15]];
if (par4List.contains(var18) && (var13 == null || par5Random.nextInt(var14 + 1) == 0)) {
var13 = new ChunkPosition(var16, 0, var17);
++var14;
}
}
return var13;
}
/**
* Return a list of biomes for the specified blocks. Args: listToReuse, x, y, width, length,
* cacheFlag (if false, don't check biomeCache to avoid infinite loop in BiomeCacheBlock)
*/
public BiomeGenBase[] getBiomeGenAt(
BiomeGenBase[] par1ArrayOfBiomeGenBase,
int par2,
int par3,
int par4,
int par5,
boolean par6) {
IntCache.resetIntCache();
if (par1ArrayOfBiomeGenBase == null || par1ArrayOfBiomeGenBase.length < par4 * par5) {
par1ArrayOfBiomeGenBase = new BiomeGenBase[par4 * par5];
}
if (par6 && par4 == 16 && par5 == 16 && (par2 & 15) == 0 && (par3 & 15) == 0) {
BiomeGenBase[] var9 = this.biomeCache.getCachedBiomes(par2, par3);
System.arraycopy(var9, 0, par1ArrayOfBiomeGenBase, 0, par4 * par5);
return par1ArrayOfBiomeGenBase;
} else {
int[] var7 = this.biomeIndexLayer.getInts(par2, par3, par4, par5);
for (int var8 = 0; var8 < par4 * par5; ++var8) {
par1ArrayOfBiomeGenBase[var8] = BiomeGenBase.biomeList[var7[var8]];
}
return par1ArrayOfBiomeGenBase;
}
}
public int[] getInts(int x, int z, int width, int depth) {
int nx = x - 1;
int nz = z - 1;
int nwidth = width + 2;
int ndepth = depth + 2;
int[] input = this.parent.getInts(nx, nz, nwidth, ndepth);
int[] output = IntCache.getIntCache(width * depth);
for (int dz = 0; dz < depth; dz++) {
for (int dx = 0; dx < width; dx++) {
int right = input[(dx + 0 + (dz + 1) * nwidth)];
int left = input[(dx + 2 + (dz + 1) * nwidth)];
int up = input[(dx + 1 + (dz + 0) * nwidth)];
int down = input[(dx + 1 + (dz + 2) * nwidth)];
int center = input[(dx + 1 + (dz + 1) * nwidth)];
if (onBorder(DCBiomeBase.dcLake.biomeID, center, right, left, up, down)) {
output[(dx + dz * width)] = DCBiomeBase.lakeBorder.biomeID;
} else if (onBorder(DCBiomeBase.clearing.biomeID, center, right, left, up, down)) {
output[(dx + dz * width)] = DCBiomeBase.clearingBorder.biomeID;
} else {
output[(dx + dz * width)] = center;
}
}
}
return output;
}
/** Returns an array of biomes for the location input. */
public BiomeGenBase[] getBiomesForGeneration(
BiomeGenBase[] par1ArrayOfBiomeGenBase, int par2, int par3, int par4, int par5) {
IntCache.resetIntCache();
if (par1ArrayOfBiomeGenBase == null || par1ArrayOfBiomeGenBase.length < par4 * par5) {
par1ArrayOfBiomeGenBase = new BiomeGenBase[par4 * par5];
}
int[] var6 = this.genBiomes.getInts(par2, par3, par4, par5);
for (int var7 = 0; var7 < par4 * par5; ++var7) {
par1ArrayOfBiomeGenBase[var7] = BiomeGenBase.biomeList[var6[var7]];
}
return par1ArrayOfBiomeGenBase;
}
/** checks given Chunk's Biomes against List of allowed ones */
public boolean areBiomesViable(int par1, int par2, int par3, List par4List) {
IntCache.resetIntCache();
int var5 = par1 - par3 >> 2;
int var6 = par2 - par3 >> 2;
int var7 = par1 + par3 >> 2;
int var8 = par2 + par3 >> 2;
int var9 = var7 - var5 + 1;
int var10 = var8 - var6 + 1;
int[] var11 = this.genBiomes.getInts(var5, var6, var9, var10);
for (int var12 = 0; var12 < var9 * var10; ++var12) {
BiomeGenBase var13 = BiomeGenBase.biomeList[var11[var12]];
if (!par4List.contains(var13)) {
return false;
}
}
return true;
}
/**
* Returns a list of temperatures to use for the specified blocks. Args: listToReuse, x, y, width,
* length
*/
public float[] getTemperatures(float[] par1ArrayOfFloat, int par2, int par3, int par4, int par5) {
IntCache.resetIntCache();
if (par1ArrayOfFloat == null || par1ArrayOfFloat.length < par4 * par5) {
par1ArrayOfFloat = new float[par4 * par5];
}
int[] var6 = this.biomeIndexLayer.getInts(par2, par3, par4, par5);
for (int var7 = 0; var7 < par4 * par5; ++var7) {
float var8 = (float) BiomeGenBase.biomeList[var6[var7]].getIntTemperature() / 65536.0F;
if (var8 > 1.0F) {
var8 = 1.0F;
}
par1ArrayOfFloat[var7] = var8;
}
return par1ArrayOfFloat;
}