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PONetwork sent Vector only updates once in client?
 

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  1. PONetwork sent Vector only updates once in client?
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    <p>Okay, so I'm trying to send a vector of objects from server to client. the clients take control of one object from the vector and send it's x and y to the server vector.</p> <p>Now the server is running fine from what I can tell. things are updating in real time, but the client only seems to update right once - when it starts.</p> <p>this is the client code:</p> <pre><code>import org.newdawn.slick.AppGameContainer; import org.newdawn.slick.BasicGame; import org.newdawn.slick.Color; import org.newdawn.slick.GameContainer; import org.newdawn.slick.Graphics; import org.newdawn.slick.Input; import org.newdawn.slick.SlickException; import java.io.*; import java.net.*; import java.util.Vector; public class SlickClient extends BasicGame{ ClientThread ct; Vector&lt;Player&gt; players; Player me; int ALL_KEYS = 0xFF; boolean keys[]; public SlickClient() { super("Test Online Client - by William Starkovich"); } public void init(GameContainer gc) throws SlickException { try{ keys = new boolean[ALL_KEYS]; for(int i = 0; i &lt; ALL_KEYS; i++){ keys[i] = false; } players = new Vector&lt;Player&gt;(); connect(); } catch(Exception e){ } } public void connect(){ String ip = "127.0.0.1"; ct = new ClientThread(ip); ct.start(); ct.setPriority(Thread.MAX_PRIORITY); me = ct.me; players = ct.players; } public void update(GameContainer gc, int delta)throws SlickException{ controls(); players = new Vector&lt;Player&gt;(); System.out.println("ct size: " + ct.players.size()); me = ct.me; players = ct.players; } public void render(GameContainer gc, Graphics g) throws SlickException{ g.setColor(Color.black); g.fillRect(0,0,640,480); for(int i = 0; i &lt; players.size(); i++){ g.setColor(Color.cyan); g.fillRect(players.get(i).x, players.get(i).y, 50, 50); } g.drawString("Players: " + players.size(), 50, 10); } public void keyPressed(int key, char c) { keys[key] = true; } public void keyReleased(int key, char c) { keys[key] = false; } public void controls(){ if(keys[Input.KEY_UP]){ me.y--; } else if(keys[Input.KEY_DOWN]){ me.y++; } else if(keys[Input.KEY_LEFT]){ me.x--; } else if(keys[Input.KEY_RIGHT]){ me.x++; } } public static void main(String[] args) throws SlickException{ AppGameContainer app = new AppGameContainer( new SlickClient() ); app.setShowFPS(false); app.setAlwaysRender(true); app.setTargetFrameRate(60); app.setDisplayMode(800, 600, false); app.start(); } } class ClientThread extends Thread implements Runnable{ Socket socket; Vector&lt;Player&gt; players; int playerID; Player me; DataOutputStream out; ObjectInputStream in; boolean loop = true; @SuppressWarnings("unchecked") public ClientThread(String ip){ super("ClientThread"); try{ this.players = new Vector&lt;Player&gt;(); socket = new Socket(ip, 4444); socket.setTcpNoDelay(true); out = new DataOutputStream(socket.getOutputStream()); in = new ObjectInputStream(socket.getInputStream()); playerID = in.readInt(); this.players = (Vector&lt;Player&gt;) in.readObject(); if(this.players != null) System.out.println("Not Null: " + this.players.size()); boolean b = false; for(int i = 0; i &lt; this.players.size(); i++){ if(!b){ if(this.players.get(i).id == playerID){ me = this.players.get(i); b = true; } } } } catch(Exception e){ e.printStackTrace(); } } public void run(){ try{ while(loop){ try{ if(!socket.isClosed() &amp;&amp; socket.isConnected()){ out.writeInt(me.x); out.writeInt(me.y); out.flush(); this.players = new Vector&lt;Player&gt;(); this.players = (Vector&lt;Player&gt;) in.readObject(); System.out.println("size" + players.size()); sleep(15); } else loop = false; } catch(Exception e){ e.printStackTrace(); socket.close(); } } } catch(Exception e){ e.printStackTrace(); } } } </code></pre> <p>Edit: Here is the server code:</p> <pre><code>import java.net.*; import java.util.Vector; import java.io.*; import javax.swing.*; import java.io.Serializable; public class SlickServer extends JFrame{ private static final long serialVersionUID = 1L; JTextArea textArea; JScrollPane scrollPane; public SlickServer(){ super("Test Online Server - by William Starkovich"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setSize(500, 100); setLocationRelativeTo(null); textArea = new JTextArea(); scrollPane = new JScrollPane(textArea); //getContentPane().add(textArea); getContentPane().add(scrollPane); } public static void main(String[] args) throws IOException { Vector&lt;Player&gt; player = new Vector&lt;Player&gt;(); SlickServer ss = new SlickServer(); ss.setVisible(true); ServerSocket serverSocket = new ServerSocket(4444); boolean listening = true; int playerID = 0; while(listening){ ss.textArea.append("Waiting to connect with player: " + playerID + "\n"); new ClientThread(serverSocket.accept(), player, playerID, ss.textArea).start(); playerID++; ss.textArea.append("Players: " + player.size() + "\n"); } serverSocket.close(); System.exit(0); } } class ClientThread extends Thread implements Runnable{ int playerID; Socket acceptedSocket; JTextArea textArea; Vector&lt;Player&gt; players; Player me; public ClientThread(Socket acceptedSocket, Vector&lt;Player&gt; players, int playerID, JTextArea textArea){ super("ClientThread"); this.acceptedSocket = acceptedSocket; this.players = players; players.add(new Player(50,50, playerID)); if(players != null) System.out.println("Not Null: " + players.size()); boolean b = false; for(int i = 0; i &lt; players.size(); i++){ if(!b){ if(players.get(i).id == playerID){ me = players.get(i); b = true; } } } this.playerID = playerID; this.textArea = textArea; } public void run(){ try{ Socket clientSocket = acceptedSocket; clientSocket.setTcpNoDelay(true); textArea.append("Accepted. Now creating I/O.\n"); DataInputStream in = new DataInputStream(clientSocket.getInputStream()); ObjectOutputStream out = new ObjectOutputStream(clientSocket.getOutputStream()); textArea.append("player connected. \n"); out.writeInt(me.id); out.writeObject(players); out.flush(); while(!clientSocket.isClosed() &amp;&amp; clientSocket.isConnected()){ me.x = in.readInt(); me.y = in.readInt(); if(players != null) System.out.println("Not Null: " + players.size()); textArea.append("PlayerID: " + playerID + " Players: " + players.size() + " me.x: " + me.x + " me.y: " + me.y + "\n"); out.writeObject(players); out.flush(); sleep(15); } } catch(Exception e){ e.printStackTrace(); System.exit(1); } } } class Player implements Serializable{ private static final long serialVersionUID = 1L; int x; int y; int id; public Player(int x, int y, int id){ this.x = x; this.y = y; this.id = id; } } </code></pre>
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