用pygam实现用户登录

要使用pygame实现用户登录功能，你需要在游戏中创建一个登录界面，并收集用户输入的用户名和密码。以下是一个简单的示例代码，演示如何使用pygame实现用户登录：

import pygame
from pygame.locals import *

# 初始化Pygame
pygame.init()

# 设置窗口尺寸
screen_width = 400
screen_height = 300
screen = pygame.display.set_mode((screen_width, screen_height))
pygame.display.set_caption('用户登录')

# 定义颜色
WHITE = (255, 255, 255)
BLACK = (0, 0, 0)

# 设置字体
font = pygame.font.Font(None, 32)

# 设置输入框
input_box_username = pygame.Rect(100, 100, 200, 32)
input_box_password = pygame.Rect(100, 150, 200, 32)

# 设置文本
text_username = ''
text_password = ''

# 设置按钮
button_rect = pygame.Rect(150, 200, 100, 50)
button_text = font.render('登录', True, BLACK)

# 游戏循环
running = True
while running:
    for event in pygame.event.get():
        if event.type == QUIT:
            running = False
        if event.type == KEYDOWN:
            if event.key == K_BACKSPACE:
                if input_box_username.collidepoint(event.pos):
                    text_username = text_username[:-1]
                if input_box_password.collidepoint(event.pos):
                    text_password = text_password[:-1]
            else:
                if input_box_username.collidepoint(event.pos):
                    text_username += event.unicode
                if input_box_password.collidepoint(event.pos):
                    text_password += event.unicode