python - Pygame，livewires : Attribute error: Message object has no attribute 'handle collide'

Question

我正在使用《Python 初学者编程》中的特殊“pygame”和“livewires”制作一个游戏，并且在大多数情况下它运行得很好。当您可以玩游戏时，计时器会滴答作响，然后当尖峰击中您时，会显示文字“输了!”时间:'然后无论你需要什么时间都会出现。但是，尽管消息生命周期为 300，但当屏幕关闭时消息持续时间不到一秒，您会看到以下错误:

Traceback (most recent call last):
    File "run.py", line 105, in main
        games.screen.mainloop()
    File "C:\Python31\lib\site-packages\livewires\games.py, line 308, in mainloop


       object._tick()
    File "C:\Python31\lib\site-packages\livewires\games.py", live 506, in _tick
        self.update()
    File "run.py", line 27, in update
        self.check_collide()
    File "run.py", line 34, in check_collide
        spike.handle_collide()
AttributeError: 'Message' object has no attribute 'handle_collide'

哇哦。这是相关代码(根据我的判断):

class Player(games.Sprite):
    """The player that must dodge the spikes."""

    def __init__(self, image, x, y):
        super().__init__(image=image, x=x, y=y)
        """
        Timer
        """
        self.timer = games.Text(value = 0,
                            size = 40,
                            color = color.black,
                            x = 600,
                            y = 440)
        games.screen.add(self.timer)

    def update(self):
        """Move to the mouse."""
        self.x = games.mouse.x
        self.y = games.mouse.y
        self.check_collide()
        self.timer.value = int(time.clock())


    def check_collide(self):
        """Check for a collision with the spikes."""
        for spike in self.overlapping_sprites:
            spike.handle_collide()



class Spike(games.Sprite):
    """A spike!"""

    def update(self):
        """Move to the left!"""
        self.x -= random.randrange(3,12)
        if self.x == 0 or self.x == 1 or self.x == 2 or self.x == 3 or self.x == 4 or self.x == 5 or self.x == 6 or self.x < 10:
            self.x = 640
            self.y = random.randrange(games.screen.height)

    def handle_collide(self):
        """Destroy!"""

        timebomb = int(time.clock())
        man = ("Lose! Time:",timebomb)
        lost_message = games.Message(value = man,
                            size = 100,
                            color = color.red,
                            x = games.screen.width/2,
                            y = games.screen.height/2,
                            lifetime = 300,
                            after_death = games.screen.quit)
        games.screen.add(lost_message)

我很困惑。应该调用方法 handle_collide 以便游戏可以完成，但似乎handle_collide是对象消息的一个属性？如果这看起来很愚蠢，那么抱歉，因为我已经诚实地尽了最大努力，正如书名所暗示的那样，我是一个菜鸟。请帮忙，提前致谢。

Answer 1

找到了修复。

def check_collide(self):
    """Check for a collision with the spikes."""
    for spike in self.overlapping_sprites:
        spike.handle_collide()

for 循环中的“尖峰”只是与玩家发生碰撞的物体的名称。实际发生的情况是玩家与“消息”对象发生碰撞，然后询问消息对象处理 Sprite 碰撞的方式。消息对象未准备好，并且没有“handle_collide”方法来处理此问题。所以它会抛出一个错误。要修复此问题，您只需将文本移离播放器，或者使用“Message”对象并创建 for 循环所需的方法。