使用Python编写贪吃蛇代码

好的，编写贪吃蛇游戏的Python代码如下：

import pygame
import random

# 初始化游戏
pygame.init()

# 设置游戏窗口大小
window_width = 600
window_height = 600
window = pygame.display.set_mode((window_width, window_height))
pygame.display.set_caption('贪吃蛇游戏')

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

# 定义蛇的属性
snake_block_size = 10
snake_speed = 20

# 字体设置
font_style = pygame.font.SysFont(None, 30)

# 定义显示分数函数
def display_score(score):
    score_text = font_style.render("Score: " + str(score), True, black)
    window.blit(score_text, [0, 0])

# 定义画出蛇的函数
def draw_snake(snake_block_size, snake_body):
    for block in snake_body:
        pygame.draw.rect(window, green, [block[0], block[1], snake_block_size, snake_block_size])

# 定义游戏主函数
def gameLoop():
    game_over = False
    game_close = False

    # 初始蛇的位置
    x1 = window_width / 2
    y1 = window_height / 2

    # 蛇每一段的大小
    x1_change = 0
    y1_change = 0

    # 定义蛇的长度
    snake_body = []
    length_of_snake = 1

    # 食物位置随机生成
    foodx = round(random.randrange(0, window_width - snake_block_size) / 10.0) * 10.0
    foody = round(random.randrange(0, window_height - snake_block_size) / 10.0) * 10.0

    while not game_over:
        while game_close == True:
            window.fill(white)
            game_over_text = font_style.render("Game Over! Press Q-Quit or C-Play Again", True, red)
            window.blit(game_over_text, [window_width / 6, window_height / 3])
            display_score(length_of_snake - 1)
            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()

        # 监听事件
        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:
                    x1_change = -snake_block_size
                    y1_change = 0
                elif event.key == pygame.K_RIGHT:
                    x1_change = snake_block_size
                    y1_change = 0
                elif event.key == pygame.K_UP:
                    y1_change = -snake_block_size
                    x1_change = 0
                elif event.key == pygame.K_DOWN:
                    y1_change = snake_block_size
                    x1_change = 0

        # 判断蛇是否碰到边界，游戏结束
        if x1 >= window_width or x1 < 0 or y1 >= window_height or y1 < 0:
            game_close = True

        # 更新蛇的位置
        x1 += x1_change
        y1 += y1_change

        # 绘制窗口
        window.fill(white)

        # 画出食物
        pygame.draw.rect(window, red, [foodx, foody, snake_block_size, snake_block_size])

        # 更新蛇的长度
        snake_head = []
        snake_head.append(x1)
        snake_head.append(y1)
        snake_body.append(snake_head)

        if len(snake_body) > length_of_snake:
            del snake_body[0]
        
        # 检查蛇是否撞上自己，游戏结束
        for block in snake_body[:-1]:
            if block == snake_head:
                game_close = True

        # 画出蛇
        draw_snake(snake_block_size, snake_body)

        # 显示分数
        display_score(length_of_snake - 1)

        pygame.display.update()

        # 当蛇吃到食物时，更新食物位置，蛇的长度+1
        if x1 == foodx and y1 == foody:
            foodx = round(random.randrange(0, window_width - snake_block_size) / 10.0) * 10.0
            foody = round(random.randrange(0, window_height - snake_block_size) / 10.0) * 10.0
            length_of_snake += 1

        # 控制蛇的速度
        pygame.time.wait(snake_speed)

    pygame.quit()
    quit()

# 开始游戏
gameLoop()