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  Problem with object modifications not sending over network  (Read 879 times)
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Offline bgilb

Senior Newbie




Java games rock!


« Posted 2013-01-20 00:11:04 »

The variables are not the same for some reason.

Here is where I receive the object:
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         if(omsg instanceof ServerPlayerStateMessage){
            ServerPlayerStateMessage msg = (ServerPlayerStateMessage) omsg;
            for(int i=0; i<msg.players.length; i++){
               PlayerModel newModel = msg.players[i];

               PlayerModel oldModel = playerManager.getByID(newModel.clientID);
               
               
               if(oldModel != null){
                  oldModel.setTilePos(newModel.tileX,newModel.tileY);
               }

            }
         }


Here is where I send:
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            if(msg instanceof ClientMoveMessage){
               System.out.println("Client move msg");
               
               ClientMoveMessage msg2 = (ClientMoveMessage) msg;
               
               cThread1.getPlayerModel().setTilePos(msg2.tileX, msg2.tileY);
            }

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   public void sendPlayerStates(){
      ArrayList<PlayerModel> playerModels = new ArrayList<PlayerModel>();
     
      for(int i=0; i<cThreads.size(); i++){
         ClientThread t = cThreads.get(i);
         playerModels.add(t.getPlayerModel());
      }
     
         
      ServerPlayerStateMessage msg = new ServerPlayerStateMessage();
     
      msg.players = new PlayerModel[playerModels.size()];
     
      msg.players = playerModels.toArray(msg.players);
     
      broadcast(msg);
         
   }


Here is the actual objectoutputstream writing:

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   public void sendAll() {
      if(socket.isConnected()){
         Object msg = null;
         while((msg = outQueue.poll()) != null){
            try {
               out.writeUnshared(msg);
               out.flush();
               out.reset();
            } catch (IOException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
            }
         }
      }
   }


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public class ServerPlayerStateMessage implements Serializable {
   
   public PlayerModel[] players;
}


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public class PlayerModel implements Serializable {
   
   //Owner of this player model
   public int clientID;
   public int tileX;
   public int tileY;
   
   public void setTilePos(int tileX, int tileY){
      this.tileX = tileX;
      this.tileY = tileY;
   }
   
}
Offline HeroesGraveDev

JGO Kernel


Medals: 314
Projects: 11
Exp: 3 years


┬─┬ノ(ಠ_ಠノ)(╯°□°)╯︵ ┻━┻


« Reply #1 - Posted 2013-01-20 01:10:54 »

I bet it's a protocol mistake.

Offline ClickerMonkey

JGO Coder


Medals: 20


Game Engineer


« Reply #2 - Posted 2013-01-20 04:29:28 »

Maybe it's a logical problem and oldModel is actually null, you should add asserts or debugging print statements.

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Offline bgilb

Senior Newbie




Java games rock!


« Reply #3 - Posted 2013-01-20 17:15:22 »


okay as I was writing this message I found the error. My objectoutputstream thread for writing had 2 class files because I moved it at some point. I made the modification to reset the stream to the wrong file! Darn
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