def __init__(self, game, w=10):
    Sprite.__init__(self, game, w, w)
    self.color = 'white'
    self.x = (self.game.canvas.width * Math.random())
    self.y = (self.game.canvas.height * Math.random())
    angle = ((2 * Math.PI) * Math.random())
    self.dx = (self.game.speed * Math.cos(angle))
    self.dy = (self.game.speed * Math.sin(angle))
def __init__(self, game, w=10):
    Sprite.__init__(self, game, w, w)
    self.color = 'white'
    self.x = (self.game.canvas.width * Math.random())
    self.y = (self.game.canvas.height * Math.random())
    angle = ((2 * Math.PI) * Math.random())
    self.dx = (self.game.speed * Math.cos(angle))
    self.dy = (self.game.speed * Math.sin(angle))