与上一个问题类似，但已经切换到OOP，我如何让我的精灵移动？

class Sprite:
    def __init__(self, x, y, speed, direction):
        self.x = x
        self.y = y
        self.speed = speed
        self.direction = direction

    def move(self):
        self.x += self.speed * math.cos(math.radians(self.direction))
        self.y += self.speed * math.sin(math.radians(self.direction))

    def change_speed(self, new_speed):
        self.speed = new_speed

    def change_direction(self, new_direction):
        self.direction = new_direction

# 创建精灵对象
my_sprite = Sprite(0, 0, 5, 45)

# 移动精灵
my_sprite.move()

# 改变精灵的速度和方向
my_sprite.change_speed(10)
my_sprite.change_direction(90)

# 再次移动精灵
my_sprite.move()