Question

我想在我的乒乓球游戏中实施子弹，我的桨可以射出子弹。现在，我只想专注于PlayerPaddle射出向右移动的子弹。这些子弹将来自桨叶的位置。但是，我不知道如何处理这个问题。我相信制作一个精灵组会使我的项目过于复杂，我只是希望我的子弹能够碰到我最终的乒乓球。这就是我到目前为止所拥有的。

class PlayerPaddle(Image):

    def __init__(self, screen_size, width, height, filename, color=(255,0,0)):

        # speed and direction have to be before super() 
        self.speed = 3
        self.direction = 0

        super().__init__(screen_size, width, height, filename, color=(255, 0, 0))

        self.rect.centerx = 40
        self.rect.centery = screen_size[1] // 2

        self.rect.height = 100 

    def update(self):

        self.rect.centery += self.direction*self.speed   # <--- use directly rect.centery 

        super().update()

        #self.rect.center = (self.centerx, self.centery) # <-- don't need it 

        if self.rect.top < 0:
            self.rect.top = 0

        if self.rect.bottom > self.screen_size[1]-1:
            self.rect.bottom = self.screen_size[1]-1


    def handle_event(self, event):
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_UP:
                self.direction = -1
            elif event.key == pygame.K_DOWN:
                self.direction = 1      
            elif event.key == pygame.K_LEFT:
                self.turnLeft()
            elif event.key == pygame.K_RIGHT:
                self.turnRight()
            elif event.key == pygame.K_u:
                bullet = Bullet(screen_size, 5, 5, "naruto.png", color = (255, 0 , 0))
                bullet.rect.centerx = self.rect.centerx
                bullet.rect.centery = self.rect.centery 
                bullet.draw()
                bullet.update()


        if event.type == pygame.KEYUP:
            if event.key == pygame.K_UP and self.direction == -1:
                self.direction = 0
            elif event.key == pygame.K_DOWN and self.direction == 1:
                self.direction = 0

这是我的子弹课

class Bullet(Image):

    def __init__(self, screen_size, width, height, filename, color = (255, 0, 0)):

        super().__init__(screen_size, width, height, filename, color = (255, 0, 0))

    def update(self):

        self.rect.centery -= 3

Answer 1

我会在Group()

之外创建PlayerPaddle()

self.bullets_group = pygame.sprite.Group()

并将其用作PlayerPaddle()

中的参数

self.player_paddle = PlayerPaddle(..., self.bullets_group)

这样玩家可以轻松地将子弹添加到组

   elif event.key == pygame.K_u:
       bullet = Bullet(screen_size, 5, 5, "naruto.png", color = (255, 0 , 0))
       bullet.rect.centerx = self.rect.centerx
       bullet.rect.centery = self.rect.centery 

       self.bullets_group.add(bullet)

和mainloop可以绘制和更新

def Update():
    self.bullets_group.update()
    self.player_paddle.update()
    self.ai_paddle.update(..., self.bullets_group)

def Render():
    self.bullets_group.draw()
    self.player_paddle.draw()

不知道如何在Pong Game中实施子弹

1 个答案: