(附源码!)基于pygame的贪吃蛇小游戏搭建与运行win10

前几天了解了一下pygame，他是基于python的一个库，我们可以导入使用。下面以贪吃蛇为例子演示在win10环境下的安装。

首次搭建：

1、查看 python、pip 是否安装以及版本

python --version
pip3 --version

当出现版本号的时候即安装成功且正常(正常情况下安装完 python 即自动安装 pip)

2、建立项目文件夹(如 pythonproject)，可跳过，直接执行 第三步

打开 cmd，执行:

D:
cd pythonproject

cmd 下进入文件夹执行以下命令

python3 -m venv .

cd scripts
activate

#(推出命令 deactivate)

3、进入虚拟环境以后，安装 pygame

python -m pip3 install pygame

#若安装失败，使用以下命令
pip3 install pygame -i https://pypi.tuna.tsinghua.edu.cn/simple/

4、查看是否安装成功

pip3 list

#若列出pygame及版本则证明安装成功

5、cmd 下创建文件

echo >> test.py

6、将代码复制到 test.py

7、执行 python 文件，cmd 下执行

python3 test.py

第二次使用启动命令:

cmd 下进入项目文件夹 D:
cd pythonproject

scripts activate
#启动虚拟环境

cd ..
python test.py

源码：

import pygame,sys,time,random
from pygame.locals import *
redColour = pygame.Color(255,0,0)
blackColour = pygame.Color(0,0,0)
whiteColour = pygame.Color(255,255,255)
greyColour = pygame.Color(150,150,150)

def gameOver(playSurface):
    gameOverFont = pygame.font.Font('arial.ttf',72)
    gameOverSurf = gameOverFont.render('Game Over', True, greyColour)
    gameOverRect = gameOverSurf.get_rect()
    gameOverRect.midtop = (320, 10)
    playSurface.blit(gameOverSurf, gameOverRect)
    pygame.display.flip()
    time.sleep(5)
    pygame.quit()
    sys.exit()

def main():
    pygame.init()
    fpsClock = pygame.time.Clock()
    playSurface = pygame.display.set_mode((640,480))
    pygame.display.set_caption('Raspberry Snake')

    snakePosition = [100,100]
    snakeSegments = [[100,100],[80,100],[60,100]]
    raspberryPosition = [300,300]
    raspberrySpawned = 1
    direction = 'right'
    changeDirection = direction
    while True:
        for event in pygame.event.get():
            if event.type == QUIT:
                pygame.quit()
                sys.exit()
            elif event.type == KEYDOWN:
                if event.key == K_RIGHT or event.key == ord('d'):
                    changeDirection = 'right'
                if event.key == K_LEFT or event.key == ord('a'):
                    changeDirection = 'left'
                if event.key == K_UP or event.key == ord('w'):
                    changeDirection = 'up'
                if event.key == K_DOWN or event.key == ord('s'):
                    changeDirection = 'down'
                if event.key == K_ESCAPE:
                    pygame.event.post(pygame.event.Event(QUIT))
        if changeDirection == 'right' and not direction == 'left':
            direction = changeDirection
        if changeDirection == 'left' and not direction == 'right':
            direction = changeDirection
        if changeDirection == 'up' and not direction == 'down':
            direction = changeDirection
        if changeDirection == 'down' and not direction == 'up':
            direction = changeDirection
        if direction == 'right':
            snakePosition[0] += 20
        if direction == 'left':
            snakePosition[0] -= 20
        if direction == 'up':
            snakePosition[1] -= 20
        if direction == 'down':
            snakePosition[1] += 20
        snakeSegments.insert(0,list(snakePosition))
        if snakePosition[0] == raspberryPosition[0] and snakePosition[1] == raspberryPosition[1]:
            raspberrySpawned = 0
        else:
            snakeSegments.pop()
        if raspberrySpawned == 0:
            x = random.randrange(1,32)
            y = random.randrange(1,24)
            raspberryPosition = [int(x*20),int(y*20)]
            raspberrySpawned = 1
        playSurface.fill(blackColour)
        for position in snakeSegments:
            pygame.draw.rect(playSurface,whiteColour,Rect(position[0],position[1],20,20))
            pygame.draw.rect(playSurface,redColour,Rect(raspberryPosition[0], raspberryPosition[1],20,20))

        pygame.display.flip()
        if snakePosition[0] > 620 or snakePosition[0] < 0:
            gameOver(playSurface)
        if snakePosition[1] > 460 or snakePosition[1] < 0:
            for snakeBody in snakeSegments[1:]:
                if snakePosition[0] == snakeBody[0] and snakePosition[1] == snakeBody[1]:
                    gameOver(playSurface)
        fpsClock.tick(5)

if __name__ == "__main__":
    main()