1.7.3 : One instance only and launching another one spawn a mario

src/fr/klemek/minimario/Launch.java

@@ -15,6 +15,8 @@ import java.util.Random;
 
 import javax.swing.SwingUtilities;
 
+import fr.klemek.minimario.LocalServer.ConnectionListener;
+
 public abstract class Launch {
 
 	private static final String VERSION = "1.7.2";
@@ -32,6 +34,18 @@ public abstract class Launch {
 	        @Override
 	        public void run() {
 	            try {
+	            	LocalServer.startServer(new ConnectionListener(){
+						@Override
+						public void onConnection() {
+							try {
+								new MarioWindow(null, currentFactor, null);
+								refreshTray();
+							} catch (IOException e) {
+								e.printStackTrace();
+							}
+						}
+	            	});
+	            	
 	            	new MarioWindow(null, currentFactor, null);
 	            	addTrayIcon(MarioWindow.getAll().get(0));
 				} catch (IOException e) {

src/fr/klemek/minimario/LocalServer.java

@@ -0,0 +1,68 @@
+package fr.klemek.minimario;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.PrintWriter;
+import java.net.ServerSocket;
+import java.net.Socket;
+
+public class LocalServer extends Thread {
+
+	public static final int[] PORTS = {34881, 41834, 16118, 24326}; //4 random, one should be available
+
+	public static final String CONTACT = "MiniMario !";
+	
+	private ServerSocket serverSocket = null;
+	private Socket clientSocket = null;
+	
+	private ConnectionListener listener;
+	
+	public LocalServer(ConnectionListener listener){
+		this.listener = listener;
+	}
+	
+	@Override
+	public void run() {
+		int i = 0;
+		while(i<PORTS.length){
+			try {
+				System.out.println("Starting MiniMario local server on port "+PORTS[i]+" ...");
+				serverSocket = new ServerSocket(PORTS[i], 1);
+				System.out.println("Started MiniMario local server on port "+PORTS[i]);
+				while (true) {
+					clientSocket = serverSocket.accept();
+					PrintWriter pw = new PrintWriter(clientSocket.getOutputStream());
+					pw.println(CONTACT);
+					pw.flush();
+					if(listener!=null)
+						listener.onConnection();
+					clientSocket.close();
+				}
+			} catch (IOException ioe) {
+				System.out.println("Error in LocalServer: " + ioe);
+			}
+		}
+		System.out.println("Couldn't start MiniMario local server on given ports");
+	}
+	
+	@SuppressWarnings("resource")
+	public static void startServer(ConnectionListener listener){
+		for(int port:PORTS){
+			try {
+				Socket socket = new Socket("localhost", port);
+				BufferedReader br = new BufferedReader (new InputStreamReader (socket.getInputStream()));
+				String serverResponse = br.readLine();
+				if(serverResponse.equals(CONTACT)){
+					System.out.println("Already running MiniMario local server on port : "+port);
+					System.exit(0);
+				}
+			} catch (Exception e) {}
+		}
+		new LocalServer(listener).start();
+	}
+
+	protected interface ConnectionListener{
+		public void onConnection();
+	}
+}

src/fr/klemek/minimario/MarioWindow.java

@@ -112,6 +112,8 @@ public class MarioWindow extends JWindow implements ActionListener {
 		this.ai.setPos(this.getLocation());
 		
 		this.refresh.start();
+		
+		System.out.println("Spawned "+tilesetName+" at ("+this.getX()+","+this.getY()+")");
 	}
 
 	//functions

src/fr/klemek/minimario/TilePanel.java

@@ -28,7 +28,6 @@ public class TilePanel extends JPanel {
 		this.imageHeight = image.getHeight();
 		this.columns = this.imageWidth / this.tileWidth;
 		this.rows = this.imageHeight / this.tileHeight;
-		System.out.println("Tileset : "+this.columns+"x"+this.rows);
 		this.setFactor(factor);
 		this.setBackground(new Color(0, 0, 0, 0));
 		this.setOpaque(false);