consider the distance between two mapPoints, ignoring all terrain, pathing issues

def direct2dDistance(self, point):
        """consider the distance between two mapPoints, ignoring all terrain, pathing issues"""
        if not isinstance(point, MapPoint): return 0.0
        return  ((self.x-point.x)**2 + (self.y-point.y)**2)**(0.5) # simple distance formula