def step(self):
if self.LaunchCount == 0:
vx, vy = self.Velocity
self.Translate(self.Velocity)
self.Velocity = (vx, vy + 1)
try:self.Angle = math.degrees(math.atan(float(vy+1)/vx))
except:self.Angle = 90
self.RotateTo(self.Angle)
self.LaunchCount = Base.limit(self.LaunchCount+1, -1, 1, True)
