基于Python的贪吃蛇游戏设计与实现

目录第1章绪论 附录程序完整代码importpygameimportsysimportrandom#initializePygamepygame.init()#colorsettingscolors=[(255,105,180),(255,0,0),(255,165,0),(255,255,0),(0,255,0),(0,127,255),(0,0,255),(139,0,255)]BLACK=(0,0,0)WHITE=(255,255,255)#screensettingssize=700screen=pygame.display.set_mode((size,size))#snakeandfoodsettingssnake=[[100,50],[90,50],[80,50]]food_pos=[random.randrange(1,size//10)*10,random.randrange(1,size//10)*10]food_count=0#directionvariablesdirection='RIGHT'changeto=directionscore=0defdisplay_text(text,size,x,y):font=pygame.font.Font(None,size)TextSurf=font.render(text,True,WHITE)TextRect=TextSurf.get_rect()TextRect.topleft=(x,y)screen.blit(TextSurf,TextRect)defgame_over():whileTrue:screen.fill(BLACK)display_text('GameOver!',50,size//3,size//3)display_text('Score:'+str(score),30,size//2,size//2)pygame.display.update()foreventinpygame.event.get():ifevent.type==pygame.QUIT:pygame.quit()sys.exit()#victoryfunctiondefvictory():myscore=pygame.font.SysFont('monaco',32).render('YouWin!!YourScoreis:{}'.format(score),True,(255,255,255))screen.blit(myscore,(size//2-120,size//2))pygame.display.flip()pygame.time.wait(5000)pygame.quit()sys.exit()defdraw_score(myscore):font=pygame.font.SysFont('monaco',32)score_surface=font.render('Score:{}'.format(myscore),True,(255,255,255))screen.blit(score_surface,(30,10))defshow_start_screen():titleFont=pygame.font.SysFont("monaco",70)titleSurface=titleFont.render("SnakeGame",True,(255,255,255))screen.blit(titleSurface,(size//2-titleSurface.get_width()//2,size//4))promptFont=pygame.font.SysFont("monaco",36)promptSurface=promptFont.render("Pressanykeytostart",True,(255,255,255))screen.blit(promptSurface,(size//2-promptSurface.get_width()//2,size//2+50))pygame.display.flip()waiting=Truewhilewaiting:foreventinpygame.event.get():ifevent.type==pygame.KEYDOWN:waiting=Falseifevent.type==pygame.QUIT:pygame.quit()sys.exit()show_start_screen()#mainlogicofthegamewhileTrue:#eventhandlingkeyeventsforeventinpygame.event.get():ifevent.type==pygame.KEYDOWN:ifevent.key==pygame.K_UPorevent.key==ord('w'):changeto='UP'ifevent.key==pygame.K_DOWNorevent.key==ord('s'):changeto='DOWN'ifevent.key==pygame.K_LEFTorevent.key==ord('a'):changeto='LEFT'ifevent.key==pygame.K_RIGHTorevent.key==ord('d'):changeto='RIGHT'ifevent.key==pygame.K_ESCAPE:pygame.event.post(pygame.event.Event(pygame.QUIT))#directionconditionsifchangeto=='UP'anddirection!='DOWN':direction='UP'ifchangeto=='DOWN'anddirection!='UP':direction='DOWN'ifchangeto=='LEFT'anddirection!='RIGHT':direction='LEFT'ifchangeto=='RIGHT'anddirection!='LEFT':direction='RIGHT'#movesnakeifdirection=='UP':snake.insert(0,[snake[0][0],snake[0][1]-10])ifdirection=='DOWN':snake.insert(0,[snake[0][0],snake[0][1]+10])ifdirection=='LEFT':snake.insert(0,[snake[0][0]-10,snake[0][1]])ifdirection=='RIGHT':snake.insert(0,[snake[0][0]+10,snake[0][1]])#gameoverifsnakeisoutofboundariesifsnake[0][0]>=sizeorsnake[0][0]<0orsnake[0][1]>=sizeorsnake[0][1]<0:game_over()#gameoverifsnakerunsoveritselfforeachinsnake[1:]:ifsnake[0]==each:game_over()#eatingfoodifsnake[0]==food_pos:food_count+=1score+=1food_pos=[random.randrange(1,size//10)*10,random.randrange(1,size//10)*10]else:snake.pop()#victoryifsnakelengthreaches1000iflen(snake)==1000:victory()#graphicsscreen.fill(BLACK)forposinsnake:pygame.draw.rect(screen,colors[food_count%8],pygame.Rect(pos[0],pos[1],10,10))pyg