释放空格键后按键计数返回0

Question

我试图记录按下空格键的次数，以便我可以限制在一定时间内按下空格键的次数，以避免垃圾邮件，从而消除游戏的意义。我通过每次按下空格键时向 keypress_count 变量添加一 (+1) 来尝试此操作，但是，一旦释放空格键，该值就会返回到 0。

class Player():
    def __init__(self, x, y):
        self.image = aru
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y
        self.vel_y = 0
        self.jumped = False

    def update(self):
        δx = 0
        δy = 0
        keypress_count = 0

        # Player controls
        kei = pygame.key.get_pressed()
        if kei[pygame.K_SPACE] and self.jumped == False:
            self.vel_y = -15
            self.jumped = True
            keypress_count += 1
            print(keypress_count)
        if kei[pygame.K_SPACE] == False:
            self.jumped = False
            print(keypress_count)
        if kei[pygame.K_a]:
            δx -= 10
        if kei[pygame.K_d]:
            δx += 10

如何才能使释放空格键后该值保持不变？

Answer 1

您的代码只是每次通过更新方法重置计数。您应该创建另一个实例变量：

class Player():
    def __init__(self, x, y):
        self.image = aru
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y
        self.vel_y = 0
        self.jumped = False
        self.keypress_count = 0

    def update(self):
        δx = 0
        δy = 0

        # Player controls
        kei = pygame.key.get_pressed()
        if kei[pygame.K_SPACE] and self.jumped == False:
            self.vel_y = -15
            self.jumped = True
            self.keypress_count += 1
            print(self.keypress_count)
        if kei[pygame.K_SPACE] == False:
            self.jumped = False
            print(self.keypress_count)
        if kei[pygame.K_a]:
            δx -= 10
        if kei[pygame.K_d]:
            δx += 10