package net.minecraft.world.gen.layer;
import net.minecraft.world.biome.BiomeGenBase;
public class GenLayerBiomeEdge extends GenLayer
{
private static final String __OBFID = "CL_00000554";
public GenLayerBiomeEdge(long p_i45475_1_, GenLayer p_i45475_3_)
{
super(p_i45475_1_);
this.parent = p_i45475_3_;
}
/**
* 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 areaX, int areaY, int areaWidth, int areaHeight)
{
int[] var5 = this.parent.getInts(areaX - 1, areaY - 1, areaWidth + 2, areaHeight + 2);
int[] var6 = IntCache.getIntCache(areaWidth * areaHeight);
for (int var7 = 0; var7 < areaHeight; ++var7)
{
for (int var8 = 0; var8 < areaWidth; ++var8)
{
this.initChunkSeed((long)(var8 + areaX), (long)(var7 + areaY));
int var9 = var5[var8 + 1 + (var7 + 1) * (areaWidth + 2)];
if (!this.replaceBiomeEdgeIfNecessary(var5, var6, var8, var7, areaWidth, var9, BiomeGenBase.extremeHills.biomeID, BiomeGenBase.extremeHillsEdge.biomeID) && !this.replaceBiomeEdge(var5, var6, var8, var7, areaWidth, var9, BiomeGenBase.mesaPlateau_F.biomeID, BiomeGenBase.mesa.biomeID) && !this.replaceBiomeEdge(var5, var6, var8, var7, areaWidth, var9, BiomeGenBase.mesaPlateau.biomeID, BiomeGenBase.mesa.biomeID) && !this.replaceBiomeEdge(var5, var6, var8, var7, areaWidth, var9, BiomeGenBase.megaTaiga.biomeID, BiomeGenBase.taiga.biomeID))
{
int var10;
int var11;
int var12;
int var13;
if (var9 == BiomeGenBase.desert.biomeID)
{
var10 = var5[var8 + 1 + (var7 + 1 - 1) * (areaWidth + 2)];
var11 = var5[var8 + 1 + 1 + (var7 + 1) * (areaWidth + 2)];
var12 = var5[var8 + 1 - 1 + (var7 + 1) * (areaWidth + 2)];
var13 = var5[var8 + 1 + (var7 + 1 + 1) * (areaWidth + 2)];
if (var10 != BiomeGenBase.icePlains.biomeID && var11 != BiomeGenBase.icePlains.biomeID && var12 != BiomeGenBase.icePlains.biomeID && var13 != BiomeGenBase.icePlains.biomeID)
{
var6[var8 + var7 * areaWidth] = var9;
}
else
{
var6[var8 + var7 * areaWidth] = BiomeGenBase.extremeHillsPlus.biomeID;
}
}
else if (var9 == BiomeGenBase.swampland.biomeID)
{
var10 = var5[var8 + 1 + (var7 + 1 - 1) * (areaWidth + 2)];
var11 = var5[var8 + 1 + 1 + (var7 + 1) * (areaWidth + 2)];
var12 = var5[var8 + 1 - 1 + (var7 + 1) * (areaWidth + 2)];
var13 = var5[var8 + 1 + (var7 + 1 + 1) * (areaWidth + 2)];
if (var10 != BiomeGenBase.desert.biomeID && var11 != BiomeGenBase.desert.biomeID && var12 != BiomeGenBase.desert.biomeID && var13 != BiomeGenBase.desert.biomeID && var10 != BiomeGenBase.coldTaiga.biomeID && var11 != BiomeGenBase.coldTaiga.biomeID && var12 != BiomeGenBase.coldTaiga.biomeID && var13 != BiomeGenBase.coldTaiga.biomeID && var10 != BiomeGenBase.icePlains.biomeID && var11 != BiomeGenBase.icePlains.biomeID && var12 != BiomeGenBase.icePlains.biomeID && var13 != BiomeGenBase.icePlains.biomeID)
{
if (var10 != BiomeGenBase.jungle.biomeID && var13 != BiomeGenBase.jungle.biomeID && var11 != BiomeGenBase.jungle.biomeID && var12 != BiomeGenBase.jungle.biomeID)
{
var6[var8 + var7 * areaWidth] = var9;
}
else
{
var6[var8 + var7 * areaWidth] = BiomeGenBase.jungleEdge.biomeID;
}
}
else
{
var6[var8 + var7 * areaWidth] = BiomeGenBase.plains.biomeID;
}
}
else
{
var6[var8 + var7 * areaWidth] = var9;
}
}
}
}
return var6;
}
/**
* Creates a border around a biome if necessary, e.g. A transition from hot to cold climates would otherwise occur.
*/
private boolean replaceBiomeEdgeIfNecessary(int[] p_151636_1_, int[] p_151636_2_, int p_151636_3_, int p_151636_4_, int p_151636_5_, int p_151636_6_, int p_151636_7_, int p_151636_8_)
{
if (!biomesEqualOrMesaPlateau(p_151636_6_, p_151636_7_))
{
return false;
}
else
{
int var9 = p_151636_1_[p_151636_3_ + 1 + (p_151636_4_ + 1 - 1) * (p_151636_5_ + 2)];
int var10 = p_151636_1_[p_151636_3_ + 1 + 1 + (p_151636_4_ + 1) * (p_151636_5_ + 2)];
int var11 = p_151636_1_[p_151636_3_ + 1 - 1 + (p_151636_4_ + 1) * (p_151636_5_ + 2)];
int var12 = p_151636_1_[p_151636_3_ + 1 + (p_151636_4_ + 1 + 1) * (p_151636_5_ + 2)];
if (this.canBiomesBeNeighbors(var9, p_151636_7_) && this.canBiomesBeNeighbors(var10, p_151636_7_) && this.canBiomesBeNeighbors(var11, p_151636_7_) && this.canBiomesBeNeighbors(var12, p_151636_7_))
{
p_151636_2_[p_151636_3_ + p_151636_4_ * p_151636_5_] = p_151636_6_;
}
else
{
p_151636_2_[p_151636_3_ + p_151636_4_ * p_151636_5_] = p_151636_8_;
}
return true;
}
}
/**
* Creates a border around a biome.
*/
private boolean replaceBiomeEdge(int[] p_151635_1_, int[] p_151635_2_, int p_151635_3_, int p_151635_4_, int p_151635_5_, int p_151635_6_, int p_151635_7_, int p_151635_8_)
{
if (p_151635_6_ != p_151635_7_)
{
return false;
}
else
{
int var9 = p_151635_1_[p_151635_3_ + 1 + (p_151635_4_ + 1 - 1) * (p_151635_5_ + 2)];
int var10 = p_151635_1_[p_151635_3_ + 1 + 1 + (p_151635_4_ + 1) * (p_151635_5_ + 2)];
int var11 = p_151635_1_[p_151635_3_ + 1 - 1 + (p_151635_4_ + 1) * (p_151635_5_ + 2)];
int var12 = p_151635_1_[p_151635_3_ + 1 + (p_151635_4_ + 1 + 1) * (p_151635_5_ + 2)];
if (biomesEqualOrMesaPlateau(var9, p_151635_7_) && biomesEqualOrMesaPlateau(var10, p_151635_7_) && biomesEqualOrMesaPlateau(var11, p_151635_7_) && biomesEqualOrMesaPlateau(var12, p_151635_7_))
{
p_151635_2_[p_151635_3_ + p_151635_4_ * p_151635_5_] = p_151635_6_;
}
else
{
p_151635_2_[p_151635_3_ + p_151635_4_ * p_151635_5_] = p_151635_8_;
}
return true;
}
}
/**
* Returns if two biomes can logically be neighbors. If one is hot and the other cold, for example, it returns
* false.
*/
private boolean canBiomesBeNeighbors(int p_151634_1_, int p_151634_2_)
{
if (biomesEqualOrMesaPlateau(p_151634_1_, p_151634_2_))
{
return true;
}
else
{
BiomeGenBase var3 = BiomeGenBase.getBiome(p_151634_1_);
BiomeGenBase var4 = BiomeGenBase.getBiome(p_151634_2_);
if (var3 != null && var4 != null)
{
BiomeGenBase.TempCategory var5 = var3.getTempCategory();
BiomeGenBase.TempCategory var6 = var4.getTempCategory();
return var5 == var6 || var5 == BiomeGenBase.TempCategory.MEDIUM || var6 == BiomeGenBase.TempCategory.MEDIUM;
}
else
{
return false;
}
}
}
}