>>> class Ship():
def __init__(self):
self.speed = Vector2(0,0)
self.loc = Vector2(0,0)
def accel(self, xvel, yvel):
self.speed += Vector2(xvel, yvel)
def update(self):
self.loc += self.speed
def __repr__(self): return "s=%s, l=%s" % (self.speed, self.loc )
>>> s = Ship()
>>> s
s=Vector2(0.00, 0.00), l=Vector2(0.00, 0.00)
>>> s.accel( 10, 0 )
>>> s
s=Vector2(10.00, 0.00), l=Vector2(0.00, 0.00)
>>> s.update()
>>> s
s=Vector2(10.00, 0.00), l=Vector2(10.00, 0.00)
>>> s.update()
>>> s
s=Vector2(10.00, 0.00), l=Vector2(20.00, 0.00)