Use python to make a simple snake game

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Snake game is a classic puzzle game, simple and playable.

Recalling childhood classics, today we will learn how to make a snake game.

development tools

• python version: 3.6.8
• Editor: pycharm

Related modules

import copy
import random
import pygame

Module installation

pip  install  -i  https://pypi.doubanio.com/simple/  --trusted-host pypi.doubanio.com  pygame

Achieve effect

Complete code

import copy
import random
# 游戏模块
import pygame

# 蛇的模型
snake_list = [[10, 10]]

# 500x500 背景大小
# 食物的模型 随机生成
x = random.randint(10, 490)
y = random.randint(10, 490)
food_point = [x, y]

# 上下左右的方位 初始小蛇方向
move_up = False
move_down = False
move_left = False
move_right = True

# 画布
# 初始化游戏组件
pygame.init()
# 设置画布大小
screen = pygame.display.set_mode((500, 500))
# 设置名字
title = pygame.display.set_caption('贪吃蛇游戏')
# 设置游戏时钟
clock = pygame.time.Clock()
while True:
    # 电影 是一帧一帧 30fps
    clock.tick(20)
    # 游戏循环
    # 把背景填充为白色
    screen.fill([255, 255, 255])

    """贪吃蛇移动 获取键盘事件"""
    # 获取电脑的时间
    # 确定移动方位
    for event in pygame.event.get():
        # 获取键盘事件
        # print(event)
        if event.type == pygame.KEYDOWN:
            # 向下移动
            if event.key == pygame.K_DOWN:
                move_up = False
                move_down = True
                move_left = False
                move_right = False
            if event.key == pygame.K_UP:
                move_up = True
                move_down = False
                move_left = False
                move_right = False
            if event.key == pygame.K_LEFT:
                move_up = False
                move_down = False
                move_left = True
                move_right = False
            if event.key == pygame.K_RIGHT:
                move_up = False
                move_down = False
                move_left = False
                move_right = True

    # 身子的移动
    snake_len = len(snake_list) - 1
    while snake_len > 0:
        snake_list[snake_len] = copy.deepcopy(snake_list[snake_len - 1])
        snake_len -= 1
    # 蛇头的移动
    if move_up:
        snake_list[snake_len][1] -= 10
        if snake_list[snake_len][1] < 0:
            snake_list[snake_len][1] = 500

    if move_down:
        snake_list[snake_len][1] += 10
        if snake_list[snake_len][1] > 500:
            snake_list[snake_len][1] = 0

    if move_left:
        snake_list[snake_len][0] -= 10
        if snake_list[snake_len][0] < 0:
            snake_list[snake_len][0] = 500

    if move_right:
        snake_list[snake_len][0] += 10
        if snake_list[snake_len][0] > 500:
            snake_list[snake_len][0] = 0
    # 绘制食物圆点
    food_rect = pygame.draw.circle(screen, [255, 0, 0], food_point, 15)
    # 循环
    snake_rect = []
    for snake_pos in snake_list:
        snake_rect.append(pygame.draw.circle(screen, [255, 0, 0], snake_pos, 5))
        # 如果食物与蛇发送了碰撞 碰撞检测方法
        if food_rect.collidepoint(snake_pos):
            snake_list.append(food_point)
            # 重新生成食物
            food_point = [random.randint(10, 490), random.randint(10, 490)]
            break
    # 贪吃蛇吃到了自己 应该结束游戏
    # 取到蛇头
    snake_head_rect = snake_rect[0]
    count = len(snake_rect)
    while count > 1:
        # 蛇头与身子的任何一个点都有可能发生碰撞
        if snake_head_rect.colliderect(snake_rect[count - 1]):
            print('贪吃蛇吃到了自己，结束游戏')
            pygame.quit()
        count -= 1
    # 把绘制的东西显示出来
    pygame.display.update()