Python Pygame石头剪刀布游戏：结果文本闪烁/不显示问题修复求助

我正在开发首个Pygame石头剪刀布游戏，期望点击Rock、Paper、Scissors按钮后，屏幕稳定显示Bot Wins、Player Wins或Match Draw的结果，直到下一次按钮点击。但目前点击Rock按钮无任何显示，偶尔Bot Wins文本仅闪烁不到一秒就消失。

你的代码存在三个核心问题导致结果无法稳定显示：

• 结果仅在按钮点击的单帧绘制，后续循环不再渲染，所以一闪而过
• 电脑选择的逻辑完全错误，没有正确生成随机选择并进行判断
• 缺少全局变量存储当前结果，无法在每帧持续显示

修复后的完整代码 #

import pygame
import random
from pygame import mixer

# 初始化Pygame
pygame.init()

# 创建屏幕
screen = pygame.display.set_mode((1000, 667))

# 标题和图标
pygame.display.set_caption("Rock, Paper, Scissors")
icon = pygame.image.load("fist.png")
pygame.display.set_icon(icon)

# 背景图
bg = pygame.image.load("bg_paper.jpg")

# 字体
font = pygame.font.SysFont("Sans", 50, bold=True)

# 背景音乐
mixer.music.load("bg_song.mp3")
mixer.music.play(-1)

# 按钮类
class Button():
    def __init__(self, x, y, image, scale):
        width = image.get_width()
        height = image.get_height()
        self.image = pygame.transform.scale(image, (int(width * scale), int(height * scale)))
        self.rect = self.image.get_rect(topleft=(x, y))
        self.clicked = False

    def draw(self):
        action = False
        screen.blit(self.image, (self.rect.x, self.rect.y))

        pos = pygame.mouse.get_pos()
        if self.rect.collidepoint(pos):
            if pygame.mouse.get_pressed()[0] == 1 and not self.clicked:
                self.clicked = True
                action = True
                
        if pygame.mouse.get_pressed()[0] == 0:
            self.clicked = False
        
        return action

# 按钮图片
button_img = pygame.image.load("button_img.png").convert_alpha()

# 文本绘制函数
def draw_text(text, font, text_col, x, y):
    img = font.render(text, True, text_col)
    screen.blit(img, (x, y))

# 创建按钮实例
rock_button = Button(10, 420, button_img, 0.92)
paper_button = Button(340, 420, button_img, 0.92)
scissors_button = Button(670, 420, button_img, 0.92)

# 电脑选择选项
bot_choices = ["Rock", "Paper", "Scissors"]

# 全局变量存储当前结果和分数
current_outcome = ""
player_score = 0
bot_score = 0

# 判断胜负的函数
def determine_winner(player_choice):
    global current_outcome, player_score, bot_score
    bot_choice = random.choice(bot_choices)
    
    if player_choice == bot_choice:
        current_outcome = "Match Draw"
    elif (player_choice == "Rock" and bot_choice == "Scissors") or \
         (player_choice == "Paper" and bot_choice == "Rock") or \
         (player_choice == "Scissors" and bot_choice == "Paper"):
        current_outcome = "Player Wins"
        player_score += 1
    else:
        current_outcome = "Bot Wins"
        bot_score += 1

# 游戏主循环
running = True
while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    screen.fill((0, 0, 0))
    screen.blit(bg, (0, 0))

    # 绘制分数
    draw_text(f"Score: {player_score}", font, (0, 0, 0), 40, 340)
    draw_text(f"Bot Score: {bot_score}", font, (0, 0, 0), 500, 340)

    # 绘制结果标题和当前结果
    draw_text("Outcome: ", font, (0, 0, 0), 40, 70)
    if current_outcome:
        draw_text(current_outcome, font, (0, 0, 0), 300, 70)

    # 处理按钮点击
    if rock_button.draw():
        determine_winner("Rock")
        print("R")
    draw_text("ROCK", font, (0, 0, 0), 100, 490)

    if paper_button.draw():
        determine_winner("Paper")
        print("P")
    draw_text("PAPER", font, (0, 0, 0), 420, 490)

    if scissors_button.draw():
        determine_winner("Scissors")
        print("S")
    draw_text("SCISSORS", font, (0, 0, 0), 700, 490)

    pygame.display.update()

关键修改说明 #

1. 添加全局结果变量：新增current_outcome变量存储当前胜负结果，在主循环的每帧都绘制这个变量，确保结果持续显示直到下一次按钮点击。
2. 修复电脑选择逻辑：将bot_choices改为列表，用random.choice()直接获取随机选择，替换原来错误的字典比较逻辑。
3. 抽离胜负判断函数：把胜负判断逻辑封装到determine_winner()函数中，代码更清晰，同时处理分数累加。
4. 优化结果绘制：在主循环中独立绘制结果，不再依赖按钮点击的帧，保证结果稳定显示。
5. 完善分数系统：新增分数统计功能，让游戏逻辑更完整。

内容的提问来源于stack exchange，提问作者Squid