贪吃蛇

#!/usr/bin/env python
import pygame,sys,time,random
from pygame.locals import *

定义颜色变量

redColour = pygame.Color(255,0,0)
blackColour = pygame.Color(0,0,0)
whiteColour = pygame.Color(255,255,255)
greyColour = pygame.Color(150,150,150)

定义gameOver函数

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()

定义main函数

def main():
# 初始化pygame
pygame.init()
fpsClock = pygame.time.Clock()
# 创建pygame显示层
playSurface = pygame.display.set_mode((640,480))
pygame.display.set_caption('Raspberry Snake')

# 初始化变量  
snakePosition = \[100,100\]  
snakeSegments = \[\[100,100\],\[80,100\],\[60,100\]\]  
raspberryPosition = \[300,300\]  
raspberrySpawned = 1  
direction = 'right'  
changeDirection = direction  
while True:  
    # 检测例如按键等pygame事件  
    for event in pygame.event.get():  
        if event.type == QUIT:  
            pygame.quit()  
            sys.exit()  
        elif event.type == KEYDOWN:  
            # 判断键盘事件  
            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))  
    # 判断是否输入了反方向  
    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  
    # 根据方向移动蛇头的坐标  
    if direction == 'right':  
        snakePosition\[0\] += 20  
    if direction == 'left':  
        snakePosition\[0\] -= 20  
    if direction == 'up':  
        snakePosition\[1\] -= 20  
    if direction == 'down':  
        snakePosition\[1\] += 20  
    # 增加蛇的长度  
    snakeSegments.insert(0,list(snakePosition))  
    # 判断是否吃掉了树莓  
    if snakePosition\[0\] == raspberryPosition\[0\] and snakePosition\[1\] == raspberryPosition\[1\]:  
        raspberrySpawned = 0  
    else:  
        snakeSegments.pop()  
    # 如果吃掉树莓，则重新生成树莓  
    if raspberrySpawned == 0:  
        x = random.randrange(1,32)  
        y = random.randrange(1,24)  
        raspberryPosition = \[int(x\*20),int(y\*20)\]  
        raspberrySpawned = 1  
    # 绘制pygame显示层  
    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))

    # 刷新pygame显示层  
    pygame.display.flip()  
    # 判断是否死亡  
    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)  
    # 控制游戏速度  
    fpsClock.tick(5)

if __name__ == "__main__":
main()

https://www.jb51.net/article/155378.htm