python - 如何让pygame只识别一次鼠标点击？

Question

我有一个简单的游戏，我希望我的鼠标点击(按钮无关紧要)每次点击只注册一次。现在即使按住它也能工作。

def drawer(x, y):
    pygame.draw.circle(screen, (0, 0, 0), [int(x), int(y)],20)

def main():
 running = True
    while running:

        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                running = False
                exit()
            if event.type == pygame.MOUSEBUTTONDOWN:
                playerY_change = -player.vy
            if event.type == pygame.MOUSEBUTTONUP:
                playerY_change = player.vy
   player.y += PlayerY_change
   drawer(player.x, player.y)
   
   # Other game code
   pygame.display.update()
    

现在，只要您按住按钮，我希望它仅在每次单击时更改，玩家的运动就会不断变化。我该怎么做？

Answer 1

曾经playerY_change设置后，玩家连续移动。因此不要设置playerY_change ，但更改 player.y当您用鼠标单击时:

def main():
 running = True
    while running:

        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                running = False
            if event.type == pygame.MOUSEBUTTONDOWN:
                player.y -= player.vy
            
   drawer(player.x, player.y)
   
   # Other game code
   pygame.display.update()

pygame.quit()
exit()