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  Having problem sending message to SGSJME server  (Read 976 times)
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Offline shinova

Senior Newbie





« Posted 2006-11-06 03:59:54 »

Hi Guys, I tried sending a simple message to the SGSJME Server but no luck.  Undecided 
The error prompt: Uncaught exception java/lang/NullPointerException.
Below are part of my codes.

public void run()
   {
      
      while( true )
      {
         tick();
         sendServerMessage();
      
      }
   }

public void tick()
   {
      int myImageSpeed = 8;
      switch( imageDirection )
      {
         case LEFT:
         myImageX-=myImageSpeed;
         break;
         
         case RIGHT:
         myImageX+=myImageSpeed;
         break;
         
         case UP:
         myImageY-=myImageSpeed;
         break;
         
         case DOWN:
         myImageY+=myImageSpeed;
         break;
      }
      
      repaint();
      serviceRepaints();
   }

protected void keyPressed( int keyCode )
   {
      if (this.getGameAction(keyCode) == UP) {
         imageDirection = UP;
         keyStatus = KEY_NUM2;
       }
       else if (this.getGameAction(keyCode) == DOWN) {
          imageDirection = DOWN;
          keyStatus = KEY_NUM8;
       }
       else if (this.getGameAction(keyCode) == LEFT) {
          imageDirection = LEFT;
          keyStatus = KEY_NUM4;
       }
       else if (this.getGameAction(keyCode) == RIGHT) {
          imageDirection = RIGHT;
          keyStatus = KEY_NUM6;
       }
       
       else {
          keyStatus = keyCode;
       }

}


protected void keyReleased( int keyCode )
   {
      imageDirection = 0;
      keyStatus = 0;
   }

   
   private void sendServerMessage() {
      
      String message = "";
      String dataString = message.toString();
      
      switch(keyStatus) {
        // UP
        case KEY_NUM2:
           System.out.println("UP");
           
           message = "Up";
         ByteBuffer data = ByteBuffer.wrap(dataString.getBytes());
         clientMgr.sendServerMessage(data);
         
            break;
        // DOWN
        case KEY_NUM8:
           System.out.println("DOWN");
           
           message = "Down";
         ByteBuffer data1 = ByteBuffer.wrap(dataString.getBytes());
         clientMgr.sendServerMessage(data1);
         
            break;
        // RIGHT
        case KEY_NUM6:
           System.out.println("RIGHT");
           
           message = "Right";
         ByteBuffer data2 = ByteBuffer.wrap(dataString.getBytes());
         clientMgr.sendServerMessage(data2);
         
         break;
        // LEFT
        case KEY_NUM4:
           System.out.println("LEFT");
           
           message = "Left";
         ByteBuffer data3 = ByteBuffer.wrap(dataString.getBytes());
         clientMgr.sendServerMessage(data3);
         
            break;
        // FIRE
        case 5:
           
            break;
        default:
           
    }
      
   }
   
Offline shinova

Senior Newbie





« Reply #1 - Posted 2006-11-10 17:24:11 »

nvm, problem solved.  Smiley
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