python贪吃蛇游戏

好的，下面是一个简单的 Python 贪吃蛇游戏示例代码：

import pygame
import random

# 初始化pygame
pygame.init()

# 设置游戏窗口大小
window = pygame.display.set_mode((500, 500))

# 设置游戏标题
pygame.display.set_caption("贪吃蛇")

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

# 设置字体
font = pygame.font.SysFont(None, 25)


# 绘制蛇和食物
def draw_snake(snake_block, snake_list):
    for x in snake_list:
        pygame.draw.rect(window, black, [x[0], x[1], snake_block, snake_block])


def draw_food(food_block, food_x, food_y):
    pygame.draw.rect(window, red, [food_x, food_y, food_block, food_block])


# 显示得分
def show_score(score):
    score_text = font.render("得分：" + str(score), True, white)
    window.blit(score_text, [0, 0])


# 游戏循环
def game_loop():
    game_over = False
    game_close = False

    # 设置蛇的初始位置和移动速度
    snake_x = 250
    snake_y = 250
    snake_block = 10
    snake_speed_x = 0
    snake_speed_y = 0

    # 设置食物的初始位置
    food_block = 10
    food_x = round(random.randrange(0, 500 - food_block) / 10.0) * 10.0
    food_y = round(random.randrange(0, 500 - food_block) / 10.0) * 10.0

    # 设置蛇的初始长度
    snake_list = []
    length_of_snake = 1

    # 设置得分
    score = 0

    # 游戏循环
    while not game_over:

        # 处理游戏结束和游戏重新开始的情况
        while game_close:
            window.fill(black)
            game_over_text = font.render("游戏结束，按Q退出，按R重新开始", True, white)
            window.blit(game_over_text, [150, 250])
            show_score(score)
            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
                    elif event.key == pygame.K_r:
                        game_loop()

        # 处理游戏中的事件
        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:
                    snake_speed_x = -snake_block
                    snake_speed_y = 0
                elif event.key == pygame.K_RIGHT:
                    snake_speed_x = snake_block
                    snake_speed_y = 0
                elif event.key == pygame.K_UP:
                    snake_speed_y = -snake_block
                    snake_speed_x = 0
                elif event.key == pygame.K_DOWN:
                    snake_speed_y = snake_block
                    snake_speed_x = 0

        # 更新蛇的位置
        snake_x += snake_speed_x
        snake_y += snake_speed_y

        # 处理蛇和食物的碰撞
        if snake_x == food_x and snake_y == food_y:
            food_x = round(random.randrange(0, 500 - food_block) / 10.0) * 10.0
            food_y = round(random.randrange(0, 500 - food_block) / 10.0) * 10.0
            length_of_snake += 1
            score += 10

        # 更新蛇的长度
        snake_head = []
        snake_head.append(snake_x)
        snake_head.append(snake_y)
        snake_list.append(snake_head)
        if len(snake_list) > length_of_snake:
            del snake_list[0]

        # 处理蛇和边界的碰撞
        if snake_x >= 500 or snake_x < 0 or snake_y >= 500 or snake_y < 0:
            game_close = True

        # 处理蛇和自身的碰撞
        for x in snake_list[:-1]:
            if x == snake_head:
                game_close = True

        # 绘制游戏界面
        window.fill(black)
        draw_snake(snake_block, snake_list)
        draw_food(food_block, food_x, food_y)
        show_score(score)
        pygame.display.update()

    # 退出pygame
    pygame.quit()

    # 退出程序
    quit()


# 启动游戏循环
game_loop()

这是一个比较简单的示例代码，可以根据自己的需要进行修改和扩展。希望对你有所帮助！