#!/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()

如果说，程序不可用或者出错，那就是因为软件的不同，请谅解！