def contains(self, item): return Simulton.distance(self, (item._x, item._y)) < self._width
def contains(self, xy): return Simulton.distance(self, xy) < Black_Hole.radius
def contains(self,xy, search): #return ((((xy[0]-self._x)**2) + ((xy[1]-self._y)**2)) <= 25) return (Simulton.distance(self, xy) <= (search))