utils_math.py 文件源码

def __isub__(self, other):
        """Resta un vector con otro"""
        if isinstance(other, Vector3):
            self.x -= other.get_x()
            self.y -= other.get_y()
            self.z -= other.get_z()
            return self
        elif isinstance(other, types.TupleType) or isinstance(other, types.ListType):
            if len(other) == 3:
                self.x -= other[0]
                self.y -= other[1]
                self.z -= other[2]
                return self
        else:
            self.throwError(2, "__isub__")
            return self