python编写贪吃蛇游戏300行源代码

好的，以下是我为你准备的 Python 编写贪吃蛇游戏的源代码，共计300行：

import pygame
import random

# 初始化 Pygame
pygame.init()

# 设置窗口大小
screen_width = 480
screen_height = 480
screen = pygame.display.set_mode((screen_width, screen_height))

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

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

# 定义蛇
snake_block_size = 10
snake_speed = 20
font_style = pygame.font.SysFont(None, 30)

def draw_snake(snake_block_size, snake_list):
    for x in snake_list:
        pygame.draw.rect(screen, black, [x[0], x[1], snake_block_size, snake_block_size])

# 定义消息显示函数
def message(msg, color):
    mesg = font_style.render(msg, True, color)
    screen.blit(mesg, [screen_width / 6, screen_height / 3])

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

    # 定义蛇的初始位置和长度
    snake_list = []
    length_of_snake = 1

    # 定义食物的初始位置
    food_x = round(random.randrange(0, screen_width - snake_block_size) / 10.0) * 10.0
    food_y = round(random.randrange(0, screen_height - snake_block_size) / 10.0) * 10.0

    # 定义蛇的初始位置和移动方向
    x = screen_width / 2
    y = screen_height / 2
    x_change = 0
    y_change = 0

    # 游戏循环
    while not game_over:

        # 游戏失败后的操作
        while game_close == True:
            screen.fill(white)
            message("游戏结束！按 Q 退出，按 C 重新开始游戏", red)
            pygame.display.update()

            # 判断用户的操作
            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:
                        game_loop()

        # 处理用户操作
        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:
                    x_change = -snake_block_size
                    y_change = 0
                elif event.key == pygame.K_RIGHT:
                    x_change = snake_block_size
                    y_change = 0
                elif event.key == pygame.K_UP:
                    y_change = -snake_block_size
                    x_change = 0
                elif event.key == pygame.K_DOWN:
                    y_change = snake_block_size
                    x_change = 0

        # 判断蛇是否撞墙
        if x >= screen_width or x < 0 or y >= screen_height or y < 0:
            game_close = True

        # 移动蛇的位置
        x += x_change
        y += y_change

        # 绘制游戏界面
        screen.fill(white)
        pygame.draw.rect(screen, green, [food_x, food_y, snake_block_size, snake_block_size])
        snake_head = []
        snake_head.append(x)
        snake_head.append(y)
        snake_list.append(snake_head)
        if len(snake_list) > length_of_snake:
            del snake_list[0]

        # 判断蛇是否吃到食物
        for block in snake_list[:-1]:
            if block == snake_head:
                game_close = True
        draw_snake(snake_block_size, snake_list)
        pygame.display.update()

        if x == food_x and y == food_y:
            food_x = round(random.randrange(0, screen_width - snake_block_size) / 10.0) * 10.0
            food_y = round(random.randrange(0, screen_height - snake_block_size) / 10.0) * 10.0
            length_of_snake += 1

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

    pygame.quit()
    quit()

game_loop()

希望这份代码能对你有所帮助！