computeWorldRotation method
Implementation
double computeWorldRotation(Bone bone) {
final double cos = MathUtils.cosDeg(rotation);
final double sin = MathUtils.sinDeg(rotation);
final double x = cos * bone.a + sin * bone.b;
final double y = cos * bone.c + sin * bone.d;
return math.atan2(y, x) * MathUtils.radDeg;
}