package netManager

{

import flash.net.DatagramSocket;

import flash.utils.ByteArray;

import flash.events.DatagramSocketDataEvent;

public class UDPManager

{

private static var myUDP:DatagramSocket ;

private static var onReceiveFunction:Function ;

private static function setUp():void

{

if(myUDP==null)

{

myUDP = new DatagramSocket();

myUDP.addEventListener(DatagramSocketDataEvent.DATA,onDataReceived);

}

}

private static function onDataReceived(e:DatagramSocketDataEvent):void

{

trace("Message received");

var message:String = e.data.toString();

if(onReceiveFunction!=null && onReceiveFunction.length>0)

onReceiveFunction(message)

}

private static function getMessageOnPort(onRespond:Function,myPort:uint=43243):void

{

trace("myUDP.connected : "+myUDP.connected);

trace("myUDP.localPort : " +myUDP.localPort);

onReceiveFunction = onRespond ;

if(myUDP.localPort==0 || ( myUDP.localPort!=myPort && myPort!=43243))

{

if(myUDP.connected)

myUDP.close();

myUDP.bind(myPort);

myUDP.receive();

}

}

public static function sendMessageTo(message:String,onRespond:Function,targetIp:String,targetPort:uint):void

{

setUp();

trace("Message sent:"+message);

getMessageOnPort(onRespond);

var data:ByteArray = new ByteArray();

data.writeUTFBytes(message);

myUDP.send(data,0,0,targetIp,targetPort);

myUDP.receive();

}

}

}