如何使pygame.MOUSEBUTTONDOWN每次单击只能运行一次？

Question

我很困惑。我目前的主要目标是使用户单击一个圆圈，并在每次单击时使屏幕左上方的数字增加一个（尝试制作基本的答题器游戏）。我已经知道，当您单击圆圈时，数字确实会上升！除了人数增加不止一次。这是代码所在的函数：

def bubble():
orange = (255, 165, 0)
dark_orange = (255, 140, 0)
bubble_color = dark_orange
bubble_x = 300
bubble_y = 400
bubble_pos = (bubble_x, bubble_y)
bubble_rad = 100
mouse_x, mouse_y = pygame.mouse.get_pos()
distance = math.hypot(bubble_x - mouse_x, bubble_y - mouse_y)
if bubble_rad >= distance:
    bubble_color = orange
if bubble_rad >= distance and event.type == pygame.MOUSEBUTTONDOWN:
    global kill_counter
    kill_counter += 1
pygame.draw.circle(screen, bubble_color, bubble_pos, bubble_rad)

我曾尝试将mousebuttondown更改为mousebutton，但仅在单击后才发生相同的问题（当我移动鼠标时，它会停止）。接下来，我尝试执行此操作：

if bubble_rad >= distance and event.type == pygame.MOUSEBUTTONDOWN and event.type == pygame.MOUSEBUTTONUP

没用，这是有道理的，因为鼠标不能同时上下移动。有没有一种方法可以使kill_counter仅在单击鼠标然后取消单击时才会上升？这是我的整个代码，以防问题出在这里。

import math

pygame.init()

# General
display_width = 600
display_height = 800
background = pygame.image.load("background.png")
screen = pygame.display.set_mode((display_width, display_height))
pygame.display.set_caption("SLASHR")
pygame.display.set_icon(pygame.image.load("knifeart.png"))

# Global variables
kill_counter = 0


# Functions
def counter():
    font = pygame.font.Font("freesansbold.ttf", 52)
    crimson = (220, 20, 60)
    screen.blit(font.render("Kill Count: " + str(kill_counter), True, crimson), (0, 10))


def bubble():
    orange = (255, 165, 0)
    dark_orange = (255, 140, 0)
    bubble_color = dark_orange
    bubble_x = 300
    bubble_y = 400
    bubble_pos = (bubble_x, bubble_y)
    bubble_rad = 100
    mouse_x, mouse_y = pygame.mouse.get_pos()
    distance = math.hypot(bubble_x - mouse_x, bubble_y - mouse_y)
    if bubble_rad >= distance:
        bubble_color = orange
    if bubble_rad >= distance and event.type == pygame.MOUSEBUTTONDOWN:
        global kill_counter
        kill_counter += 1
    pygame.draw.circle(screen, bubble_color, bubble_pos, bubble_rad)


# Game Loop
running = True
while running:
    screen.fill((255, 255, 255))
    screen.blit(background, (0, 0))
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
    counter()
    bubble()
    pygame.display.update()

感谢您阅读和帮助我！

Answer 1

[if event.type == MOUSEBUTTONDOWN应该在for event in pygame.event.get()循环中，我想在循环之后，事件仍然是MOUSEBUTTONDOWN并且没有重置，

尝试：

# Game Loop
running = True
click = False #have click variable
while running:
    screen.fill((255, 255, 255))
    screen.blit(background, (0, 0))
for event in pygame.event.get():
    if event.type == pygame.QUIT:
        running = False
    if event.type == pygame.MOUSEBUTTONDOWN:
        click = True

然后在冒泡功能中：
def bubble():
    #other code
    if bubble_rad >= distance and click:
        global kill_counter
        kill_counter += 1