实训报告模板 javaME 动画和简单游戏

《基于移动平台的JAVA实训》实训报告动画和简单游戏姓名：班级：学号：指导教师：成绩：完成时间：设计目的在本次实训中，针对画布类和画笔类进行一些低级界面的开发，联系前边学过的知识，进行一次综合的实训，学习一些控制技巧。这次实训包括三个小项目，第一个是弹跳的小球，帮助同学们掌握一些动画开发过程的一些技巧，特别是线程控制技巧；第二个是卡通时钟，在这个项目中将制作界面丰富的时钟，主要复习定时器和画图，以及分块画图的一些技巧；第三个是拼图游戏，复习键盘控制和一些开发策略。通过本次实训，我们了解了一些开发技巧，熟悉了低级界面的开发过程和其中的基本内容。功能介绍(一)弹跳的小球：界面上有个小红球，要求能够慢慢掉下来，让后弹起，为了逼真，当球在上方是比较大，球落下时，慢慢变小，在界面的右下角有一个“暂停”按钮，可以让动画暂停，动画暂停结束之后又可以让小球继续运动。（二）卡通时钟：在界面画出当前时间，每隔一秒，重新获取当前时间画到界面上。该问题可以用多线程实现，也可以用定时器实现，本节中选用定时器安装。（三）拼图游戏：制作一个拼图游戏，该系统有1个界面组成，用户通过上、下、左、右控制小块的运动，当用户长按选择的键时界面将会打印出拼好的图片，选择键松开，又恢复到打乱的状态。概要设计（一）弹跳的小球1自定义类说明在这个系统中，定义了两个类，分别是VideoCanvas，用于用于继承Canvas类和实现Runnable接口以及CommandLinstener接口,类VideoMIDlet，用于继承MIDlet类，这个类是手机必不可少的类。2方法定义说明在VideoCanvas类中，有一个publicVideoCanvas()构造方法方法，用于实例化对象；publicvoidcommandAction(Commandc,Displayabled)方法是CommandLinstener接口必须重写的方法，用于响应键盘事件；publicvoidpaint(Graphicsg)方法是类Canvas中必须重写的方法，用于绘制图画；publicvoidrun()是接口Runnable必须重写的方法，用于控制小球的运动。（二）卡通时钟1自定义类说明在这个项目中，有如下几个类：ClockCanvas类，用来继承Canvas类，实现绘制图片的功能，控制显示的数字；ClockMIDlet类，用于继承MIDlet类，实例化ClockCanvas类的对象，并把给对象设置为当前页面。2方法定义说明 在ClockCanvas类中，有publicClockCanvas()构造方法，还有publicvoidpaint(Graphicsg)是类Canvas中必须重写的方法，publicvoidpaint(Graphicsg)用于绘制当前时间，publicvoiddrawNumber(Graphicsg,intnumber,intlocation)方法用于从数字图片上截取一个数字。（三）拼图游戏1自定义类说明在这个游戏中，有如下几个类：PPuzzleCanvas，用于继承Canvas类和实现CommandListener接口，PPuzzleMIDlet类用来继承MIDlet。2方法定义说明在PPuzzleCanvas中有如下方法：publicPPuzzleCanvas(Imageimg,MIDletparent)是构造方法，voidinitMap()是把一幅图分成均等的16份之后打乱顺序，publicvoidpaint(Graphicsg)是Canvas类必须重写的方法，显示打乱顺序之后的图片和判断是否完成拼图，publicvoidcommandAction(Commandcmd,Displayabledis)是接口CommandListener类必须重写的方法，publicbooleanisSuccess()是判断是否完成拼图的方法，protectedvoidkeyPressed(intkeyCode)是响应键盘事件的方法，详细设计弹跳的小球关键代码packageproj11_1;importjavax.microedition.lcdui.Canvas;importjavax.microedition.lcdui.Command;importjavax.microedition.lcdui.CommandListener;importjavax.microedition.lcdui.Displayable;importjavax.microedition.lcdui.Graphics;publicclassVideoCanvasextendsCanvasimplementsRunnable,CommandListener{ privateintleft=50; privateinttop=50; privateintd=100; privateintDIR=1; privateCommandcmdPause=newCommand("暂停",Command.SCREEN,1); privateCommandcmdResume=newCommand("继续",Command.SCREEN,1); privateThreadth; privatebooleanRUN=true; publicVideoCanvas() { this.addCommand(cmdPause); this.setCommandListener(this); th=newThread(this); th.start(); //TODOAuto-generatedconstructorstub } publicvoidcommandAction(Commandc,Displayabled) { if(c==cmdPause) { this.removeCommand(cmdPause); this.addCommand(cmdResume); RUN=false; th=null; } elseif(c==cmdResume) { this.removeCommand(cmdResume); this.addCommand(cmdPause); RUN=true; th=newThread(this); th.start(); } } publicvoidpaint(Graphicsg) { g.setColor(255,255,255); g.fillRect(0,0,this.getWidth(),this.getHeight()); g.setColor(255,0,0); g.fillArc(left,top,d,d,0,360); } publicvoidrun() { while(RUN) { if(DIR==1) { top+=3; d--; if(top>=this.getHeight()-d) { DIR=2; } } if(DIR==2) { top-=3; d++; if(top<=50) { DIR=1; } } repaint(); try { Thread.currentThread().sleep(10); }catch(Exceptionex){} } } }运行截图（二）卡通时钟1、关键代码packagepro11_2;importjava.util.Calendar;importjava.util.Timer;importjava.util.TimerTask;importjavax.microedition.lcdui.Canvas;importjavax.microedition.lcdui.Graphics;importjavax.microedition.lcdui.Image;importjavax.microedition.lcdui.game.Sprite;publicclassClockCanvasextendsCanvas{ privateinthour; privateintminute; privateintsecond; privateImageimg=null; privateTimertimer=newTimer(); privateintwidthOfNumber; privateintheightOfNumber; publicClockCanvas() { try { img=Image.createImage("/number.jpg"); }catch(Exceptionex) { ex.printStackTrace(); } widthOfNumber=img.getWidth()/11; heightOfNumber=img.getHeight(); Tasktask=newTask(); timer.schedule(task,0,1000); } publicvoidpaint(Graphicsg) { intnum1=hour/10; intnum2=hour%10; this.drawNumber(g,num1,0); this.drawNumber(g,num2,1); this.drawNumber(g,10,2); intnum3=minute/10; intnum4=minute%10; this.drawNumber(g,num3,3); this.drawNumber(g,num4,4); this.drawNumber(g,10,5); intnum5=second/10; intnum6=second%10; this.drawNumber(g,num5,6); this.drawNumber(g,num6,7); } publicvoiddrawNumber(Graphicsg,intnumber,intlocation) { intx_src=widthOfNumber*number; inty_src=0; intwidth=widthOfNumber; intheight=heightOfNumber; intx_des=location*widthOfNumber; inty_dest=0; g.drawRegion(img,x_src,y_src,width,height, Sprite.TRANS_NONE,x_des,y_dest,Graphics.LEFT|Graphics.TOP); } classTaskextendsTimerTask { publicvoidrun() { Calendarcalendar=Calendar.getInstance(); hour=calendar.get(Calendar.HOUR_OF_DAY); minute=calendar.get(Calendar.MINUTE); second=calendar.get(Calendar.SECOND); repaint(); } }}运行截图（三）拼图游戏1、关键代码packagepro11_3;importjava.util.Random;importjavax.microedition.lcdui.Canvas;importjavax.microedition.lcdui.Command;importjavax.microedition.lcdui.CommandListener;importjavax.microedition.lcdui.Displayable;importjavax.microedition.lcdui.Graphics;importjavax.microedition.lcdui.Image;importjavax.microedition.lcdui.game.GameCanvas;importjavax.microedition.lcdui.game.Sprite;importjavax.microedition.midlet.MIDlet;publicclassPPuzzleCanvasextendsCanvasimplementsCommandListener{ privateCommandcmdResume=newCommand("继续",Command.SCREEN,1); privateCommandcmdClose=newCommand("关闭",Command.CANCEL,1); privateImageimg; privateintedge; int[][]map={{00,01,02,03}, {10,11,12,13}, {20,21,22,23}, {30,31,32,33}}; privateGraphicsgra=null; privateMIDletparent; publicPPuzzleCanvas(Imageimg,MIDletparent) { this.img=img; this.parent=parent; edge=img.getWidth()/4; this.setCommandListener(this); this.initMap(); } voidinitMap() { Randomrnd=newRandom(); inttemp,x1,y1,x2,y2; for(inti=0;i<100;i++) { x1=rnd.nextInt(4); x2=rnd.nextInt(4); y1=rnd.nextInt(4); y2=rnd.nextInt(4); temp=map[x1][y1]; map[x1][y1]=map[x2][y2]; map[x2][y2]=temp; } this.repaint(); } publicvoidpaint(Graphicsg) { gra=g; g.setColor(255,255,255); g.fillRect(0,0,this.getWidth(),this.getHeight()); for(intx=0;x<4;x++) { for(inty=0;y<4;y++) { if(map[x][y]!=33) { intxSegment=map[x][y]/10; intySegment=map[x][y]%10; g.drawRegion(img,xSegment*edge,ySegment*edge,edge,edge,Sprite.TRANS_NONE,x*edge,y*edge,Graphics.LEFT|Graphics.TOP); } } } if(isSuccess()) { g.setColor(0,0,0); g.drawString("恭喜您，您已经顺利完成！还要继续吗？",this.getWidth()/2,this.getHeight()-60,Graphics.HCENTER|Graphics.TOP); this.addCommand(cmdResume); this.addCommand(cmdClose); } } publicvoidcommandAction(Commandcmd,Displayabledis) { if(cmd==cmdClose) { parent.notifyDestroyed(); }elseif(cmd==cmdResume) { this.initMap(); this.removeCommand(cmdResume); this.removeCommand(cmdClose); } } publicbooleanisSuccess() { for(intx=0;x<4;x++) { for(inty=0;y<4;y++) { intxSegment=map[x][y]/10; intySegment=map[x][y%10]; if(xSegment!=x||ySegment!=y) { returnfalse; } } } returntrue; } protectedvoidkeyPressed(intkeyCode) { intaction=this.getGameAction(keyCode); intxOf33=-1,yOf33=-1; for(intx=0;x<4;x++) { for(inty=0;y<4;y++) { if(map[x][y]==33) { xOf33=x; yOf33=y; break; } } } switch(action) { caseGameCanvas.UP: if(yOf33!=3) { this.swap(xOf33,yOf33,xOf33,yOf33+1); }break; caseGameCanvas.DOWN: if(yOf33!=0) { th