贪吃蛇代码python

以下是一个简单的贪吃蛇代码，使用Python语言实现：

import pygame
import random

# 初始化Pygame
pygame.init()

# 设置窗口尺寸和标题
width = 500
height = 500
window = pygame.display.set_mode((width, height))
pygame.display.set_caption("贪吃蛇")

# 定义颜色
white = (255, 255, 255)
black = (0, 0, 0)
red = (255, 0, 0)

# 设置游戏参数
snake_block = 10
snake_speed = 15

# 创建蛇
def snake(snake_block, snake_list):
    for x in snake_list:
        pygame.draw.rect(window, black, [x[0], x[1], snake_block, snake_block])

# 创建游戏循环
def gameLoop():
    game_over = False
    game_close = False

    # 初始蛇位置和长度
    x1 = width / 2
    y1 = height / 2
    x1_change = 0
    y1_change = 0
    snake_List = []
    Length_of_snake = 1

    # 食物随机位置
    foodx = round(random.randrange(0, width - snake_block) / 10.0) * 10.0
    foody = round(random.randrange(0, height - snake_block) / 10.0) * 10.0

    # 游戏循环
    while not game_over:

        while game_close == True:
            window.fill(white)
            font_style = pygame.font.SysFont(None, 50)
            message = font_style.render("游戏结束，按 Q 退出，按 C 重新开始", True, black)
            window.blit(message, [width / 6, height / 3])

            # 游戏结束后的操作
            pygame.display.update()

            for event in pygame.event.get():
                if event.type == pygame.KEYDOWN:
                    if event.key == pygame.K_q:
                        game_over = True
                        game_close = False
                    if event.key == pygame.K_c:
                        gameLoop()

        # 控制蛇移动
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                game_over = True
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_LEFT:
                    x1_change = -snake_block
                    y1_change = 0
                elif event.key == pygame.K_RIGHT:
                    x1_change = snake_block
                    y1_change = 0
                elif event.key == pygame.K_UP:
                    y1_change = -snake_block
                    x1_change = 0
                elif event.key == pygame.K_DOWN:
                    y1_change = snake_block
                    x1_change = 0

        # 判断蛇是否出边界
        if x1 >= width or x1 < 0 or y1 >= height or y1 < 0:
            game_close = True

        # 更新蛇的位置
        x1 += x1_change
        y1 += y1_change
        window.fill(white)

        # 更新食物位置
        pygame.draw.rect(window, red, [foodx, foody, snake_block, snake_block])

        # 更新蛇的长度
        snake_Head = []
        snake_Head.append(x1)
        snake_Head.append(y1)
        snake_List.append(snake_Head)
        if len(snake_List) > Length_of_snake:
            del snake_List[0]

        # 判断蛇是否碰到自己
        for x in snake_List[:-1]:
            if x == snake_Head:
                game_close = True

        # 更新蛇的位置
        snake(snake_block, snake_List)
        pygame.display.update()

        # 判断蛇是否吃到食物
        if x1 == foodx and y1 == foody:
            foodx = round(random.randrange(0, width - snake_block) / 10.0) * 10.0
            foody = round(random.randrange(0, height - snake_block) / 10.0) * 10.0
            Length_of_snake += 1

        # 控制游戏速度
        clock = pygame.time.Clock()
        clock.tick(snake_speed)

    # 退出Pygame
    pygame.quit()
    quit()

# 运行游戏循环
gameLoop()

这个代码实现了基本的贪吃蛇功能，包括蛇的移动、碰撞检测、食物的随机生成、长度的增加等。你可以在此基础上进行更多的扩展和优化。