贪吃蛇游戏代码Python

贪吃蛇是一款经典的电子游戏，使用Python编写一个基本版本的贪吃蛇游戏并不复杂。主要涉及游戏循环、蛇的移动、食物生成和碰撞检测等核心部分。以下是一个简单的Python游戏代码概述：

1. 导入必要的库：`pygame`库用于图形处理。

import pygame

2. 初始化游戏窗口和设置：

pygame.init()
screen = pygame.display.set_mode((400, 400))
pygame.display.set_caption("贪吃蛇")
clock = pygame.time.Clock()
snake_color = (0, 255, 0)
food_color = (255, 0, 0)

3. 定义蛇、食物和得分：

snake_block = 10
snake = [(100, 100), (90, 100), (80, 100)]  # 初始位置
food_pos = (randint(0, screen_width // snake_block), randint(0, screen_height // snake_block))
score = 0

4. 游戏循环（主循环）：

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            quit()

    keys = pygame.key.get_pressed()
    if keys[pygame.K_UP] and snake > 0:
        snake_head = (snake, snake - snake_block)
    elif keys[pygame.K_DOWN] and snake < screen_height - snake_block:
        snake_head = (snake, snake + snake_block)
    elif keys[pygame.K_LEFT] and snake > 0:
        snake_head = (snake - snake_block, snake)
    elif keys[pygame.K_RIGHT] and snake < screen_width - snake_block:
        snake_head = (snake[0] + snake_block, snake)

    # 移动蛇身，添加新头部
    new_snake = [snake_head]
    new_snake.extend(snake[:-1])
    snake = new_snake

    # 检查碰撞和食物
    if snake_head in snake[1:]:
        print("Game Over!")
        break
    if snake_head == food_pos:
        score += 1
        food_pos = (randint(0, screen_width // snake_block), randint(0, screen_height // snake_block))
    else:
        snake.pop(0)

    # 绘制元素
    screen.fill((0, 0, 0))
    for pos in snake:
        pygame.draw.rect(screen, snake_color, pygame.Rect(pos, pos, snake_block, snake_block))
    pygame.draw.rect(screen, food_color, pygame.Rect(food_pos, food_pos, snake_block, snake_block))
    pygame.display.flip()
    clock.tick(10)