private MCAFile getMCA(int x, int y, int z) {
int MCAX = x >> 9;
int MCAZ = z >> 9;
if (MCAX == lastX && MCAZ == lastZ) {
return lastMCA;
}
lastX = MCAX;
lastZ = MCAZ;
long pair = MathMan.pairInt(lastX, lastZ);
lastMCA = regions.get(pair);
if (lastMCA == null) {
// lastMCA = new MCAFile(folder, lastX, lastZ);
// TODO
regions.put(pair, lastMCA);
}
return lastMCA;
}
public int getOpacityBrightnessPair(int x, int y, int z) {
return MathMan.pair16(Math.min(15, getOpacity(x, y, z)), getBrightness(x, y, z));
}