python贪吃蛇代码

以下是一个简单的 Python 贪吃蛇游戏代码，你可以在 Python 编辑器中运行它：

import pygame
import random
 
pygame.init()

# 游戏窗口的大小
window_width = 800
window_height = 600
 
# 颜色定义
black = (0, 0, 0)
white = (255, 255, 255)
green = (0, 255, 0)
blue = (0, 0, 255)
red = (255, 0, 0)

# 定义游戏窗口
game_display = pygame.display.set_mode((window_width, window_height))
pygame.display.set_caption('贪吃蛇')

# 游戏时钟
clock = pygame.time.Clock()

# 定义蛇头和蛇身的大小
block_size = 10

# 定义字体
font = pygame.font.SysFont(None, 25)

# 定义一个函数，用于在窗口中显示消息
def message_to_screen(msg, color):
    screen_text = font.render(msg, True, color)
    game_display.blit(screen_text, [window_width/2, window_height/2])

# 定义一个函数，用于绘制蛇
def draw_snake(block_size, snake_list):
    for x in snake_list:
        pygame.draw.rect(game_display, green, [x[0], x[1], block_size, block_size])

# 定义一个函数，用于显示分数
def score(score):
    text = font.render("Score: " + str(score), True, black)
    game_display.blit(text, [0,0])

# 定义游戏主循环
def game_loop():
    game_exit = False
    game_over = False
 
    # 定义蛇头的位置和移动的方向
    lead_x = window_width / 2
    lead_y = window_height / 2
    lead_x_change = 0
    lead_y_change = 0
 
    # 定义蛇身的长度和位置
    snake_list = []
    snake_length = 1
 
    # 随机生成食物的位置
    food_x = round(random.randrange(0, window_width - block_size) / 10.0) * 10.0
    food_y = round(random.randrange(0, window_height - block_size) / 10.0) * 10.0
 
    while not game_exit:
 
        while game_over == True:
            game_display.fill(white)
            message_to_screen("Game Over, press C to play again or Q to quit", red)
            pygame.display.update()
 
            for event in pygame.event.get():
                if event.type == pygame.KEYDOWN:
                    if event.key == pygame.K_q:
                        game_exit = True
                        game_over = False
                    if event.key == pygame.K_c:
                        game_loop()
 
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                game_exit = True
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_LEFT:
                    lead_x_change = -block_size
                    lead_y_change = 0
                elif event.key == pygame.K_RIGHT:
                    lead_x_change = block_size
                    lead_y_change = 0
                elif event.key == pygame.K_UP:
                    lead_y_change = -block_size
                    lead_x_change = 0
                elif event.key == pygame.K_DOWN:
                    lead_y_change = block_size
                    lead_x_change = 0
 
        # 判断蛇是否撞到墙或自己
        if lead_x >= window_width or lead_x < 0 or lead_y >= window_height or lead_y < 0:
            game_over = True
 
        lead_x += lead_x_change
        lead_y += lead_y_change
 
        # 绘制游戏窗口
        game_display.fill(black)
        pygame.draw.rect(game_display, red, [food_x, food_y, block_size, block_size])
 
        # 判断蛇是否吃到食物
        snake_head = []
        snake_head.append(lead_x)
        snake_head.append(lead_y)
        snake_list.append(snake_head)
        if len(snake_list) > snake_length:
            del snake_list[0]
 
        for each_segment in snake_list[:-1]:
            if each_segment == snake_head:
                game_over = True
 
        draw_snake(block_size, snake_list)
 
        # 更新分数和食物的位置
        score(snake_length - 1)
 
        pygame.display.update()
 
        if lead_x == food_x and lead_y == food_y:
            food_x = round(random.randrange(0, window_width - block_size) / 10.0) * 10.0
            food_y = round(random.randrange(0, window_height - block_size) / 10.0) * 10.0
            snake_length += 1
 
        clock.tick(15)
 
    pygame.quit()
    quit()

# 开始游戏
game_loop()

希望能对你有所帮助！