ticktacktoe.java

一本介绍手机游戏开发的书中的源代码

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import java.util.Random;

public class TickTackToe extends MIDlet
{
   Display display;
   canvasTTT canvasttt;

   public TickTackToe()
   {
      canvasttt=new canvasTTT();
      display=Display.getDisplay(this);
   }

   public void startApp()
   {
      display.setCurrent(canvasttt);
   }

   public void pauseApp(){}

   public void destroyApp(boolean unconditional){}

   class canvasTTT extends Canvas implements CommandListener
   {
      Image handImage;
      Image crossesImage;
      Image noughtsImage;
      Image ticktacktoeImage;
      int gameaction;
      int moveXY;
      int i;
      int j;
      int k;
      int kk;
      int points;
      boolean pcWin;
      boolean pcCheck;
      boolean youWin;
      boolean youCheck;
      boolean ok;
      boolean gameOVRE;
      boolean again;
      boolean playAgain;
      Command exitCommand;
      Random pcrand;
      mobilePlay mobileplay;
      int[] array; 
      int[][] winGame={{0,1,2},{0,4,8},{0,3,6},{1,4,7},{2,4,6},{2,5,8},{3,4,5},{6,7,8}};
      int[][] drawMap={{18,29},{68,29},{118,29},{18,79},{68,79},{118,79},{18,129},{68,129},{118,129}};
   
      public canvasTTT()
      {
        array=new int[9];
        pcrand=new Random();
        try{
            handImage=Image.createImage("/hand.png");
            crossesImage=Image.createImage("/crosses.png");
            noughtsImage=Image.createImage("/noughts.png");
            ticktacktoeImage=Image.createImage("/ticktacktoe.png");
        }catch(Exception ex){}
        exitCommand = new Command("离开", Command.BACK, 1);
        addCommand(exitCommand);
        setCommandListener(this);
      }

      public void keyPressed(int keyCode)
      { 
        gameaction=getGameAction(keyCode);
        switch(gameaction)
        {
          case UP:
               moveXY=moveXY-3;
               if(moveXY<0) moveXY=0;
               repaint();
               break;
          case DOWN: 
               moveXY=moveXY+3;
               if(moveXY>6) moveXY=6;            
               repaint();
               break;
          case LEFT:
               moveXY--;
               if(moveXY<0) moveXY=0;
               repaint();
               break;
          case RIGHT:
               moveXY++;
               if(moveXY>8) moveXY=8;
               repaint();
               break;
          case FIRE:
               if(playAgain)
               {
                 init(); 
                 repaint();   
               }else
                 if(array[moveXY]==0)
                 {
                   array[moveXY]=1;
                   repaint();
                   gameStop();
                   if(again)
                   {
                     mobileplay=new mobilePlay();
                     mobileplay.start();
                     mobileplay=null;
                   }
                    else{
                     gameOVRE=true;
                     playAgain=true;
                     repaint();
                   }
               }
               break;
      } 
    }

    private void init()
    {
       gameOVRE=playAgain=youWin=pcWin=false; 
       for(i=0;i<9;i++)
         array[i]=0;
    }

    public void paint(Graphics g)
    {
       g.setColor(0xffffff);
       g.fillRect(0,0,getWidth(),getHeight());
       g.setColor(0);
       g.drawImage(ticktacktoeImage, 0, 0, Graphics.LEFT | Graphics.TOP); 
       for(i=0; i<9; i++)
         if(array[i]==1)
           g.drawImage(noughtsImage, drawMap[i][0], drawMap[i][1], Graphics.LEFT | Graphics.TOP);
         else if(array[i]==4)
           g.drawImage(crossesImage, drawMap[i][0], drawMap[i][1], Graphics.LEFT | Graphics.TOP); 
       g.drawImage(handImage, 38+(moveXY%3)*50, 41+(moveXY/3)*50, Graphics.TOP | Graphics.HCENTER);     
   
       if(gameOVRE)
       { 
         g.setColor(0x0000ff);
         g.fillRect(40,50,100,50);
         g.setColor(0xff0000);
         if(youWin)
           g.drawString("你赢了!",70,60,Graphics.LEFT | Graphics.TOP);
         else if(pcWin)
           g.drawString("你输了!",70,60,Graphics.LEFT | Graphics.TOP); 
         else
           g.drawString("你们平手!",70,60,Graphics.LEFT | Graphics.TOP); 
         g.drawString("再玩一次",70,85,Graphics.LEFT | Graphics.TOP); 
         g.drawImage(handImage, 80, 90, Graphics.LEFT | Graphics.TOP);
       }
    }

    class mobilePlay extends Thread
    {
       public void run()
       {
         checkAI(8);
         if(pcCheck)
         {
           for(i=0;i<3;i++)
             if(array[winGame[kk][i]]==0) 
               array[winGame[kk][i]]=4;
         }
         checkAI(2);
         if(youCheck)
         {
           for(i=0;i<3;i++)
             if(array[winGame[kk][i]]==0) 
               array[winGame[kk][i]]=4;
         }
         if(!pcCheck && !youCheck) 
           playgame();
         youCheck=false;
         pcCheck=false;
         again=false;
         winAI(3);
         winAI(12);
         if(youWin || pcWin)
            gameOVRE=playAgain=true;
         repaint();
       }
    }

    private void gameStop()
    {
      for(i=0;i<9;i++)
        if(array[i]==0)
          again=true;
    } 

    private void playgame()
    {
      points=(int)Math.abs(pcrand.nextInt()%9);
      while(array[points]!=0)
         points=(int)Math.abs(pcrand.nextInt()%9);
      array[points]=4;
    }

    private void winAI(int checkwin)
    {
      k=0;
      while(k<8)
      {
        if(array[winGame[k][0]]+array[winGame[k][1]]+array[winGame[k][2]]==checkwin)
        {  
          if(checkwin==12)
            pcWin=true;
          else 
            youWin=true;
          break;
        }
        k++;
      }
    }

    private void checkAI(int checkStatus)
    {
       kk=0;   
       while(kk<8)
       {
         if(array[winGame[kk][0]]+array[winGame[kk][1]]+array[winGame[kk][2]]==checkStatus)
         {
           if(checkStatus==2 && (array[winGame[kk][0]]==0 || array[winGame[kk][1]]==0 || array[winGame[kk][2]]==0))
              youCheck=true;
           else if(checkStatus==8 && (array[winGame[kk][0]]==0 || array[winGame[kk][1]]==0 || array[winGame[kk][2]]==0))
              pcCheck=true;
           break;
         } 
         kk++;
       }
    }   

    public void commandAction(Command cmd, Displayable disp)
    {
       if(cmd == exitCommand)
       {
         destroyApp(false);
         notifyDestroyed(); 
       }   
    } 
  }
}