Add comments to GenLayerBiomeBOP

This commit is contained in:
Cheeserolls 2015-05-26 18:23:36 +01:00
parent c01e34ca85
commit 45b15e6d7f

View file

@ -50,6 +50,7 @@ public class GenLayerBiomeBOP extends GenLayerBiome
}
}
// Get array of biome IDs covering the requested area
@Override
public int[] getInts(int areaX, int areaY, int areaWidth, int areaHeight)
{
@ -61,32 +62,37 @@ public class GenLayerBiomeBOP extends GenLayerBiome
for (int z = 0; z < areaWidth; ++z)
{
this.initChunkSeed((long)(z + areaX), (long)(x + areaY));
int k1 = inputBiomeIds[z + x * areaWidth];
int l1 = (k1 & 3840) >> 8;
k1 &= -3841;
int parentVal = inputBiomeIds[z + x * areaWidth];
/*if (this.field_175973_g != null && this.field_175973_g.fixedBiome >= 0)
// Value from parent layer consists of
// 4 high bits which determine whether the biome will be a 'special' variant
// 8 low bits which determine the base biome type
int specialVal = (parentVal & 3840) >> 8;
int baseVal = parentVal & -3841;
// Note: vanilla GenLayerBiome has a section here which deals with fixed biomes on a custom world
// This doesn't apply in BOP
if (isBiomeOceanic(baseVal)) // special case for oceans
{
aint1[j1 + i1 * areaWidth] = this.field_175973_g.fixedBiome;
outputBiomeIds[z + x * areaWidth] = baseVal;
}
else */if (isBiomeOceanic(k1))
else if (baseVal == BiomeGenBase.mushroomIsland.biomeID) // special case for mushroom island
{
outputBiomeIds[z + x * areaWidth] = k1;
outputBiomeIds[z + x * areaWidth] = parentVal;
}
else if (k1 == BiomeGenBase.mushroomIsland.biomeID)
else if (baseVal == 1) // baseVal = 1 means a DESERT region
{
outputBiomeIds[z + x * areaWidth] = k1;
}
else if (k1 == 1)
{
if (l1 > 0)
if (specialVal > 0)
{
// there is a special biome for DESERT : mesa plateau
if (this.nextInt(3) == 0)
{
outputBiomeIds[z + x * areaWidth] = BiomeGenBase.mesaPlateau.biomeID;
}
else
{
// otherwise get a (weighted) random biome from the DESERT list
outputBiomeIds[z + x * areaWidth] = BiomeGenBase.mesaPlateau_F.biomeID;
}
}
@ -95,34 +101,41 @@ public class GenLayerBiomeBOP extends GenLayerBiome
outputBiomeIds[z + x * areaWidth] = getWeightedBiomeEntry(DESERT).biome.biomeID;
}
}
else if (k1 == 2)
else if (baseVal == 2) // baseVal = 2 means a WARM region
{
if (l1 > 0)
if (specialVal > 0)
{
// there is a special biome for WARM : jungle
outputBiomeIds[z + x * areaWidth] = BiomeGenBase.jungle.biomeID;
}
else
{
// otherwise get a (weighted) random biome from the WARM list
outputBiomeIds[z + x * areaWidth] = getWeightedBiomeEntry(WARM).biome.biomeID;
}
}
else if (k1 == 3)
else if (baseVal == 3) // baseVal = 3 means a COOL region
{
if (l1 > 0)
if (specialVal > 0)
{
// there is a special biome for COOL : mega taiga
outputBiomeIds[z + x * areaWidth] = BiomeGenBase.megaTaiga.biomeID;
}
else
{
// otherwise get a (weighted) random biome from the COOL list
outputBiomeIds[z + x * areaWidth] = getWeightedBiomeEntry(COOL).biome.biomeID;
}
}
else if (k1 == 4)
else if (baseVal == 4) // baseVal = 4 means a ICY region
{
// I would have expected the ice spikes to be the special biome for ICY, apparently not - not sure where the ice spikes fit in...
// Regardless of specialVal, get a (weighted) random biome from the ICY list
outputBiomeIds[z + x * areaWidth] = getWeightedBiomeEntry(ICY).biome.biomeID;
}
else
{
// default for any other value is mushroom island - I don't think we should ever get here
outputBiomeIds[z + x * areaWidth] = BiomeGenBase.mushroomIsland.biomeID;
}
}