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_positionclass 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_positionself.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 highscorebakscreen=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levellevelnum=scorenum/50+1speed=[0,levelnum]for event in pygame.event.get():if event.type==pygame.QUIT:sys.exit() #make goldpressed_keys = pygame.key.get_pressed() if pressed_keys[pygame.K_LEFT]:#按下左键drawback()loadtext(levelnum,scorenum,highscore)if iright > 14 :iright=10iright=iright+1filename='image//'+str(iright)+'.png'if x<50 :x=50else:x=x-10backimg_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=0ileft=ileft+1filename='image//'+str(ileft)+'.png'if x>560:x=560else:x=x+10backimg_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+=5loadtext(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：