Question

所以我已经开始为一个项目制作我自己的游戏了，当你点击太空飞船射击后，当你点击鼠标它再次发射而没有按下任何东西时它会一直持续下去。我已经把我到目前为止的内容包括在内了

from livewires import games
import pygame
games.init(screen_width = 840, screen_height = 480, fps = 50)

class Spaceship(games.Sprite):
    """Creates the Spaceship"""

    ship_image = games.load_image("spaceship.bmp")

    def __init__(self):

        super(Spaceship, self).__init__(image = Spaceship.ship_image,
                                      x = games.mouse.x,
                                      bottom = games.screen.height)
    def update(self):
        """ Move to mouse x position. """
        self.x = games.mouse.x

        if self.left < 0:
            self.left = 0

        if self.right > games.screen.width:
            self.right = games.screen.width
        #Makes the laser spawn on the spaceship
        for event in pygame.event.get():
            if event.type == pygame.MOUSEBUTTONDOWN:
                new_laser = Laser(self.x, self.y)
                games.screen.add(new_laser)

class Laser(games.Sprite):
    """Creates the laser"""
    laser_image = games.load_image("laser1.png")

    def __init__(self,spaceship_x, spaceship_y):


        super(Laser, self).__init__(image = Laser.laser_image,
                                    x = spaceship_x, y = spaceship_y,
                                    dy = -6)


#class enemy(game.Sprite):  


def main():
    """Runs the game"""
    background = games.load_image("featured-space-policy.jpg", transparent = False)
    games.screen.background = background

    ship = Spaceship()
    games.screen.add(ship)
    games.mouse.is_visible = False
    games.screen.mainloop()


main()

Answer 1

想一想，

由于您设置了一个事件侦听MOUSEBUTTONDOWN，所以这会触发激光功能，但它将如何停止？，

所以，你需要为MOUSEBUTTONUP设置另一个监听器，它将停止激光器的发射，如下所示：

for event in pygame.event.get():
            if event.type == pygame.MOUSEBUTTONDOWN:
                new_laser = Laser(self.x, self.y)
                games.screen.add(new_laser)
            else event.type == pygame.MOUSEBUTTONUP:
                 remove_laser()#something like that, I'm not sure if it's the right method.

MOUSEBUTTONDOWN命令在没有单击的情况下激活自身

1 个答案: