Question

我正在为我的大学班制作一个pong的修改版本，并且在传递一些方法时遇到了一些麻烦。我相信我已经设置了所需的方式来进行一些参数传递。代码运行正常，并在我的main函数中的while循环之后停止工作。任何帮助表示赞赏。

    import pygame

    SCR_WID, SCR_HEI = 640, 480
    class Player():
            def __init__(self):
                    self.x, self.y = 16, SCR_HEI/2
                    self.x1, self.y1 = SCR_WID-16, SCR_HEI/2
                    self.speed = 3
                    self.padWid, self.padHei = 8, 64
                    self.score = 0
                    self.scoreFont = pygame.font.Font("imagine_font.ttf", 64)

            def scoring(self):
                    scoreBlit = self.scoreFont.render(str(self.score), 1, (0,0,0))
                    screen.blit(scoreBlit, (32, 16))
                    if self.score == 10:
                            print ("player 1 wins!")
                            exit()

            def scoring1(self):
                    scoreBlit = self.scoreFont.render(str(self.score), 1, (0,0,0))
                    screen.blit(scoreBlit, (SCR_HEI+92, 16))
                    if self.score == 10:
                            print ("Player 2 wins!")
                            exit()

            def movement(self):                 
                    keys = pygame.key.get_pressed()
                    if keys[pygame.K_w]:
                            self.y -= self.speed
                    elif keys[pygame.K_s]:
                            self.y += self.speed

                    if self.y <= 0:
                            self.y = 0
                    elif self.y >= SCR_HEI-64:
                            self.y = SCR_HEI-64

                    keys1 = pygame.key.get_pressed()
                    if keys1[pygame.K_UP]:
                            self.y1 -= self.speed
                    elif keys1[pygame.K_DOWN]:
                            self.y1 += self.speed

                    if self.y1 <= 0:
                            self.y1 = 0
                    elif self.y >= SCR_HEI-64:
                            self.y1 = SCR_HEI-64

            def draw(self):
                    pygame.draw.rect(screen, (0,0,0), (self.x, self.y, self.padWid, self.padHei))
                    pygame.draw.rect(screen, (0,0,0), (self.x1, self.y1, self.padWid, self.padHei))



    class Ball():
            def __init__(self):
                    self.x, self.y = SCR_WID/2, SCR_HEI/2
                    self.x1, self.y1 = SCR_WID/2, SCR_HEI/2
                    self.speed_x = -3
                    self.speed_y = 3
                    self.size = 8

            def movement(self):
                    self.x += self.speed_x
                    self.y += self.speed_y

                    if self.y <= 0:
                            self.speed_y *= -1
                    elif self.y >= SCR_HEI-self.size:
                            self.speed_y *= -1

                    if self.x <= 0:
                            self.__init__()
                            enemy.score += 1
                    elif self.x >= SCR_WID-self.size:
                            self.__init__()
                            self.speed_x = 3
                            player.score += 1
                    for n in range(-self.size, player.padHei):
                            if self.y == player.y + n:
                                    if self.x <= player.x + player.padWid:
                                            self.speed_x *= -1
                                            break
                            n += 1
                    self.x1 += self.speed_x
                    self.y1 += self.speed_y

                    if self.y1 <= 0:
                            self.speed_y *= -1
                    elif self.y1 >= SCR_HEI-self.size:
                            self.speed_y *= -1

                    if self.x1 <= 0:
                            self.__init__()
                            enemy.score += 1
                    elif self.x1 >= SCR_WID-self.size:
                            self.__init__()
                            self.speed_x = 3
                            player.score += 1
                    for n in range(-self.size, enemy.padHei):
                            if self.y1 == enemy.y1 + n:
                                    if self.x1 >= enemy.x1 - enemy.padWid:
                                            self.speed_x *= -1
                                            break
                            n += 1

            def draw(self):
                    pygame.draw.rect(screen, (112,138,144), (self.x, self.y, 8, 8))

    SCR_WID, SCR_HEI = 640, 480
    screen = pygame.display.set_mode((SCR_WID, SCR_HEI))
    pygame.display.set_caption("Justin's pong")
    pygame.font.init()
    clock = pygame.time.Clock()
    FPS = 60
    player = Player() 
    ball = Ball()
    enemy = Player()

    def main():
        while True:
            for event in pygame.event.get():
                            if event.type == pygame.QUIT:
                                    print ("Game exited by user")
                                    exit()
        backgroundimage = pygame.image.load("background.png")
        ball.movement()
        player.movement()
        enemy.movement()
        position = (0,0)
        screen.fill((0, 0, 0))
        screen.blit(backgroundimage, position)
        ball.draw()
        player.draw()
        player.scoring()
        enemy.draw()
        enemy.scoring1()
        pygame.display.flip()
        clock.tick(FPS)

    main()

Answer 1

在循环完成之前，将执行超出while循环的任何内容。

i = 0
while i < 5:
    print(i)
    i += 1
print('Finished!')

输出：

0
1
2
3
4
Finished!

Python参数传递

1 个答案: