def __init__(self, coords, direction = Vector(0,-1)):
if (type(coords) != Vector):
self.coords = Vector(coords)
else:
self.coords = coords.copy()
self.coords
if (type(coords) != Vector or not direction):
direction = Vector(0,1)
self.direction = direction.normalized()
if self.size > 0.5:
raise Exception('Collision algorithm does not support radius more than 0.5')
