def __init__(self, p1, p2, color=(0,0,0), model=None):
super(Arrow, self).__init__(mid_point(p1, p2), color)
if not model:
model = [
[2, 0],
[-6, -4],
[-6, 4],
]
ang = angle(p1, p2)
self.arrow = translate(rotate(model, ang), p2)
self.p1 = p1
self.p2 = p2
def __init__(self, p1, p2, color=(0,0,0), model=None):
super(Line, self).__init__(mid_point(p1, p2), color)
self.p1 = p1
self.p2 = p2