贪吃蛇小游戏代码python

以下是一个简单的Python贪吃蛇小游戏的代码：

import pygame
import random

# 初始化Pygame
pygame.init()

# 颜色定义
white = (255, 255, 255)
black = (0, 0, 0)
red = (255, 0, 0)
green = (0, 255, 0)
blue = (0, 0, 255)

# 游戏区域大小
width, height = 800, 600

# 创建游戏区域
screen = pygame.display.set_mode((width, height))
pygame.display.set_caption('Snake Game')

# 设置游戏帧率
clock = pygame.time.Clock()
fps = 10

# 定义贪吃蛇
snake_block_size = 10
snake_speed = 15
snake_list = []
snake_length = 1
snake_x, snake_y = width / 2, height / 2

# 定义食物
food_x = round(random.randrange(0, width - snake_block_size) / 10.0) * 10.0
food_y = round(random.randrange(0, height - snake_block_size) / 10.0) * 10.0

# 游戏结束函数
def game_over():
    font_style = pygame.font.SysFont(None, 50)
    message = font_style.render('Game Over!', True, red)
    screen.blit(message, (width / 2 - 100, height / 2 - 50))
    pygame.display.update()
    time.sleep(2)
    pygame.quit()
    quit()

# 游戏主循环
while True:
    # 处理事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            quit()

    # 处理键盘事件
    keys = pygame.key.get_pressed()
    if keys[pygame.K_LEFT]:
        snake_x -= snake_block_size
    elif keys[pygame.K_RIGHT]:
        snake_x += snake_block_size
    elif keys[pygame.K_UP]:
        snake_y -= snake_block_size
    elif keys[pygame.K_DOWN]:
        snake_y += snake_block_size

    # 判断是否吃到食物
    if snake_x == food_x and snake_y == food_y:
        food_x = round(random.randrange(0, width - snake_block_size) / 10.0) * 10.0
        food_y = round(random.randrange(0, height - snake_block_size) / 10.0) * 10.0
        snake_length += 1

    # 判断是否撞到墙壁或自己
    if snake_x < 0 or snake_x > width - snake_block_size or snake_y < 0 or snake_y > height - snake_block_size:
        game_over()
    head = []
    head.append(snake_x)
    head.append(snake_y)
    snake_list.append(head)
    if len(snake_list) > snake_length:
        del snake_list[0]
    for block in snake_list[:-1]:
        if block == head:
            game_over()

    # 绘制游戏区域
    screen.fill(black)
    pygame.draw.rect(screen, green, [food_x, food_y, snake_block_size, snake_block_size])
    for block in snake_list:
        pygame.draw.rect(screen, blue, [block[0], block[1], snake_block_size, snake_block_size])
    pygame.display.update()

    # 控制游戏帧率
    clock.tick(fps)

这个代码使用了Pygame库来实现游戏界面和交互逻辑。要运行这个代码，你需要安装Pygame并在Python环境中运行它。