pygame学习笔记（6）：完成一个简单的游戏

学了这么长时间的Pygame，一直想写个游戏实战一下。看起来很简单的游戏，写其来怎么这么难。最初想写个俄罗斯方块，想了很长时间如何实现，想来想去，也没写出来，于是干脆下载别人的代码来读。后来，要想写一个帮助记忆的挖宝箱的游戏，结果也没完成。唯一完成了就是下面这个小人接金币的游戏，超级简单，通过左右键控制小人移动去接空中下来的金币，接住金币得5分，接不住游戏结束，金币速度会随着level的关数而越来越快。完成这段代码后，我依然觉得这段代码写得很差，确实也是自己对pygame只是掌握了皮毛，对surface、sprite这些理解的还不透彻。这里把代码写出来，有时间的大牛们可以帮助指点一下，让我也有所提高。

# -*- coding: cp936 -*-'''一个超级简单的游戏左右键控制小人移动去接空中下来的金币，接住金币得5分，接不住游戏结束，金币速度会随着level的关数而越来越快'''import pygame,sys,os,randompygame.init()class rect():#画出小人  def __init__(self,filename,initial_position):    self.image=pygame.image.load(filename)    self.rect=self.image.get_rect()    self.rect.topleft=initial_position    class goldrect(pygame.sprite.Sprite):#绘出金币  def __init__(self,gold_position,speed):    pygame.sprite.Sprite.__init__(self)    self.image=pygame.image.load('image\\gold.png')    self.rect=self.image.get_rect()    self.rect.topleft=gold_position    self.speed=speed  def move(self):    self.rect=self.rect.move(self.speed)        def drawback(): #绘出背景图片  my_back=pygame.image.load('image\\qi3.jpg')   bakscreen.blit(my_back,[0,0])    def loadtext(levelnum,score,highscore):#绘出成绩、level、最高分等  my_font=pygame.font.SysFont(None,24)  levelstr='Level:'+str(levelnum)  text_screen=my_font.render(levelstr, True, (255, 0, 0))  bakscreen.blit(text_screen, (650,50))  highscorestr='Higescore:'+str(highscore)  text_screen=my_font.render(highscorestr, True, (255, 0, 0))  bakscreen.blit(text_screen, (650,80))  scorestr='Score:'+str(score)  text_screen=my_font.render(scorestr, True, (255, 0, 0))  bakscreen.blit(text_screen, (650,110))  def loadgameover(scorenum,highscore):#绘出GAME OVER  my_font=pygame.font.SysFont(None,50)  levelstr='GAME OVER'  over_screen=my_font.render(levelstr, True, (255, 0, 0))  bakscreen.blit(over_screen, (300,240))  highscorestr='YOUR SCORE IS '+str(scorenum)  over_screen=my_font.render(highscorestr, True, (255, 0, 0))  bakscreen.blit(over_screen, (280,290))  if scorenum>int(highscore):#写入最高分    highscorestr='YOUR HAVE GOT THE HIGHEST SCORE!'    text_screen=my_font.render(highscorestr, True, (255, 0, 0))    bakscreen.blit(text_screen, (100,340))    highfile=open('highscore','w')    highfile.writelines(str(scorenum))     highfile.close()   def gethighscore(): #读取最高分  if os.path.isfile('highscore'):    highfile=open('highscore','r')    highscore=highfile.readline()     highfile.close()   else:    highscore=0  return highscore         bakscreen=pygame.display.set_mode([800,600])bakscreen.fill([0,160,233])pygame.display.set_caption('Dig!Dig!')drawback()levelnum=1 #levelscorenum=0 #得分highscore=gethighscore()#最高分ileft=1 #记录向左移动步数，用来控制图片iright=10 #记录向右移动步数，用来控制图片x=100y=450filename='image\\1.png'backimg_ren=rect(filename,[x,y])bakscreen.blit(backimg_ren.image,backimg_ren.rect)loadtext(levelnum,scorenum,highscore)goldx=random.randint(50,580)speed=[0,levelnum]mygold=goldrect([goldx,100],speed) pygame.display.update()while True:  if scorenum>0 and scorenum/50.0==int(scorenum/50.0):#当得分是50的倍数时修改level    levelnum=scorenum/50+1    speed=[0,levelnum]    for event in pygame.event.get():    if event.type==pygame.QUIT:      sys.exit()  #make gold    pressed_keys = pygame.key.get_pressed()  if pressed_keys[pygame.K_LEFT]:#按下左键    drawback()     loadtext(levelnum,scorenum,highscore)    if iright > 14 :iright=10    iright=iright+1    filename='image\\'+str(iright)+'.png'    if x<50 :      x=50    else:      x=x-10    backimg_surface=rect(filename,[x,y])    bakscreen.blit(backimg_surface.image,backimg_surface.rect)      if pressed_keys[pygame.K_RIGHT]:#按下右键    drawback()    loadtext(levelnum,scorenum,highscore)    if ileft > 4 :ileft=0    ileft=ileft+1    filename='image\\'+str(ileft)+'.png'    if x>560:      x=560    else:      x=x+10    backimg_surface=rect(filename,[x,y])    bakscreen.blit(backimg_surface.image,backimg_surface.rect)  drawback()  loadtext(levelnum,scorenum,highscore)  mygold.move()  bakscreen.blit(mygold.image,mygold.rect)     backimg_surface=rect(filename,[x,y])  bakscreen.blit(backimg_surface.image,backimg_surface.rect)  if mygold.rect.top>600:#判断金币是否着地，一但着地，游戏结束    loadgameover(scorenum,highscore)  if mygold.rect.colliderect(backimg_surface.rect):#判断金币是否与小人碰撞，如果碰撞表示小人接到金币    scorenum+=5    loadtext(levelnum,scorenum,highscore)    goldx=random.randint(50,580)    mygold=goldrect([goldx,100],speed)   pygame.display.update()

程序中用到的资源可从这里下载：文件名：gold.7z, 访问地址：http://www.kuaipan.cn/file/id_16699292408348719.htm