Python 贪吃蛇游戏代码 - 使用 Pygame 库实现

以下是一个简单的贪吃蛇代码示例，使用 Pygame 库来实现：

import pygame
import time
import random

pygame.init()

# 游戏窗口大小
width = 800
height = 600

# 定义颜色
white = (255, 255, 255)
yellow = (255, 255, 102)
black = (0, 0, 0)
red = (213, 50, 80)
green = (0, 255, 0)
blue = (50, 153, 213)

# 设置游戏窗口
display = pygame.display.set_mode((width, height))
pygame.display.set_caption('贪吃蛇')

clock = pygame.time.Clock()

snake_block = 10
snake_speed = 30

font_style = pygame.font.SysFont(None, 50)
score_font = pygame.font.SysFont(None, 35)


def our_snake(snake_block, snake_list):
    for x in snake_list:
        pygame.draw.rect(display, black, [x[0], x[1], snake_block, snake_block])


def message(msg, color):
    mesg = font_style.render(msg, True, color)
    display.blit(mesg, [width / 6, height / 3])


def game_loop():
    game_over = False
    game_close = False

    x1 = width / 2
    y1 = height / 2

    x1_change = 0
    y1_change = 0

    snake_list = []
    snake_length = 1

    foodx = round(random.randrange(0, width - snake_block) / 10.0) * 10.0
    foody = round(random.randrange(0, height - snake_block) / 10.0) * 10.0

    while not game_over:

        while game_close == True:
            display.fill(blue)
            message('游戏结束！按Q-退出或C-重新开始', red)
            pygame.display.update()

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

        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

        if x1 >= width or x1 < 0 or y1 >= height or y1 < 0:
            game_close = True
        x1 += x1_change
        y1 += y1_change
        display.fill(blue)
        pygame.draw.rect(display, green, [foodx, foody, snake_block, snake_block])
        snake_head = []
        snake_head.append(x1)
        snake_head.append(y1)
        snake_list.append(snake_head)
        if len(snake_list) > snake_length:
            del snake_list[0]

        for x in snake_list[:-1]:
            if x == snake_head:
                game_close = True

        our_snake(snake_block, snake_list)
        pygame.display.update()

        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
            snake_length += 1

        clock.tick(snake_speed)

    pygame.quit()


game_loop()

这个代码使用了 Pygame 库来实现贪吃蛇游戏。在游戏中，玩家可以使用键盘上的箭头来控制蛇的移动方向，游戏目标是吃到食物并且避免蛇撞到自己或者撞到边界。游戏结束后，玩家可以选择重新开始或者退出游戏。