java版的贪吃蛇毕业论文.docx
贪吃蛇姓名：摘要：本文用J2SE实现大家耳熟能详的一个贪吃蛇游戏来综合运用所学知识，本游戏运用软件工程思想(螺旋模型)，打好游戏主体框架，JAVA的面向对象思想，封装类，接口等概念，来完成本游戏，打到综合运用知识的目的。(1) .本游戏开发平台：WINXP:(2) .JAVA开发环境：JDKl.6+Eclipse;(3) .开发语言：J2SE关键词：中央控制器;游戏面板;食物;蛇;石头TheGreedSnakeAbstract:Inthispaper,J2SEimplementationofaSnakegamefamiliartotheintegrateduseofwhattheyhaveIeamed,thisgameistheuseofsoftwareengineeringthinking(spiralmodel),themainframeworkofthefightgame,JAVAobject-orientedthinking,wrapperclasses,interfaceconceptstocompletethisgame,hittingtheintegrateduseofknowledgeandpurpose.(1) .Thegamedevelopmentplatform:WINXP;(2) .JAVADevelopmentEnvironment:JDK1.6+Eclipse;(3) .DevelopmentLanguages:J2SEKeywords:COntrOller;GamePane1;Food;Snake;GrOUnd前言贪吃蛇游戏背景：蛇引诱夏娃吃了苹果之后，就被贬为毒虫，阴险的象征。而蛇吃东西是整只动物吞进去的，大概在文艺复兴的时候(好象是那个时候但是不确定)就有人发明的一种游戏，是现在贪吃蛇的前身。后来慢慢的发展就变成了今天的贪吃蛇了、现在贪吃蛇主要应用于手机游戏。本文运用软件工程思想、JAVA面向对象编程、类的封装、抽象类的使用(接口)，游戏编码规范遵循MVC模式，循序渐进实现贪吃蛇的相关功能。一:游戏中的面向对象分析与设计涉及到几个对象(类)每个类有什么方法1 .首先得有个游戏显示面板(GamePaneI)类该类有一个方法voiddisplay();用来显示游戏面板2 .得有个蛇(SlIake)类该类有以下几个方法：voidmove();移动(走一步)voidChangeDireCtioIl0;改变方向voideatFood();吃食物(身体变长)VooleanisEatBody();蛇是否吃到了自己的身体voiddrawMe();显示3 .一个食物类(Food)类该类有以下方法：booleanisSlIakeEatFOod(SlIake);判断蛇是否吃到了食物voidCiraWMe();显示4 .一个背景石头(GrOUlId)类该类有以下方法：BooleanisSnakeEatRock(Snake);蛇是否吃到了石头voiddrawMe();显示此时类之间的关系如下图所示：二:编写贪吃蛇游戏中的各个类的主体框架性代码本有序遵循MVC(ModeI-View-ControIIer)所以首先建立以上几个实体类并定义相应的包名：liang.snake.entities包下定义Food、Ground¼Snake三个类，再在IiaiIg.snake.view包下定义GamePalIel类，再在，按照以上说明的各个类具有的方法,写上如下代码：packageIiang.snake.entities;publicclassFoodpublicbooleanIsSnakeEatFood(Snakesnake)(System.out.printin(Snake,seatfood");returnfalse;publicvoiddrawme()(System.out.printin(,Food,sdrawme',);packageIiang.snake.entities;publicclassGroundpublicbooleanIsSnakeEatRock()returnfalse;publicvoiddrawme()(System.out.printin(',Ground,sdrawme',);packageIiang.snake.entities;publicclassSnakepublicvoidmove()System.out.printin("Snake'smove,);publicvoidChangeDirection(intdirection)ChangeDirection");System.out.printin("Snake,spublicvoideatFood()(System.out.printin("Snake'seatfood");publicbooleanIsEatBody()(System.out.printin("Snake,seatbody");returnfalse;publicvoiddrawMe()System.out.printin(,'Snake,sdrawMe");packageIiang.snake.view;importjava.awt.Graphics;importjavax.swing.JPanel;importIiang.snake.entities.Food;importIiang.snake.entities.Ground;importIiang.snake.entities.Snake;publicclassGamePanelextendsJPanelprivateSnakesnake;privateGroundground;privateFoodfood;publicvoidpaintComponent(Graphicsg)snake.drawMe();ground.drawme();food.drawme();publicvoiddisplay(SnakesnakezGroundground,Foodfood)(this.snake=snake;this.ground=ground;this.food=food;System.out.printin("GamePanel,sdisplay");this.repaint();三：编写ControIer类与实现蛇移动的事件监听由于蛇不能直接操作显示面板(GamePaiIeD所以这里定义一个监听器SnakeListener:里面定义一个方法：voidSnakeMove(Snake);每当蛇移动一步就触发监听器，调用SilakeMOVed()由Controller去实现监听器的接口，然后由控制器去触发显示面板的事件源，让显示面板完成相应操作。逻辑图如下：通过事件监听建立联系图2事件监听建立联系在Sllake中增加蛇的方向常量:public static finalint UP=I;public static finalint DOWN=-I;public static finalint LEFT=2;public staticfinal int RIGHT=-2;并添加一个接口:packageIiang.snake.Listener;importIiang.snake.entities.Snake;publicinterfaceSnakeListenerpublicvoidSnakeMove(Snakesnake);Controler实现SnakeListener接口并处理案件消息：代码如下:packageIiang.snake.Controller;importjava.awt.event.KeyAdapter;importjava.awt.event.KeyEvent;importIiang.snake.Listener.SnakeListener;importIiang.snake.entities.Food;importIiang.snake.entities.Ground;importIiang.snake.entities.Snake;importIiang.snake.view.GamePanel;PubIiCclassControllerextendsKeyAdapterimplementsSnakeListenerSnakesnake=newSnake();Groundground=newGround();Foodfood=newFood();GamePanelgamepanel=newGamePanel();publicController(SnakesnakezGroundground,FoodfoodzGamePanelgamepanel)this.snake=snake;this.ground=ground;this.food=food;this.gamepanel=gamepanel;pxblicvoidkeyReleased(KeyEvente)switch(e.getKeyCode()(caseKeyEvent.VK_UP:snake.ChangeDirection(Snake.UP);break;caseKeyEvent.VK_DOWN:snake.ChangeDirection(Snake.DOWN);break;caseKeyEvent.VK_LEFT:snake.ChangeDirection(Snake.LEFT);break;caseKeyEvent.VK_RIGHT:snake.ChangeDirection(Snake.RIGHT);break;publicvoidnewgame()snake.start();publicvoidSnakeMove(Snakesnake)gamepanel.display(snake,ground,food);开发到此时，Snake中应该增加监听器，并另启动一个线程来不断调用蛇的move();在Snake中提供一个启动线程的方法，在Snake中增加如下代码：privateSet<SnakeListener>listener=newHashSet<SnakeListener>();publicvoidaddSnakeListener(SnakeListener1)if(1!=null)this.listener.add(1);publicvoidstart()(newThread(newSnakeDriver().run();并在RUn方法中增加for(SnakeListener1:listener)(1.SnakeMove(Snake.this);try(Thread.sleep(100O);catch(InterruptedExceptione)e.printStackTrace();四：编写对各个类进行测试的程序代码构建一个新类Game来测试程序代码：packageIiang.snake.Game;impo
