networking - unity udp not receiving -


i'm trying make networking script find game servers on lan running trouble; import system.net.sockets;

import system.net.sockets;

private var udp_server:udpclient; private var udp_client:udpclient; private var udp_port:int = 18000; private var udp_broadcast_ip:ipaddress = ipaddress.parse ("224.0.0.224");  private var selected:boolean = false;  private var udp_received_message:string;  function startserver(){      udp_server = new udpclient(udp_port, addressfamily.internetwork);     var udp_endpoint:ipendpoint = new ipendpoint(udp_broadcast_ip, udp_port);     udp_server.connect (udp_endpoint);      invokerepeating("startbroadcastudp", 0.0,0.3); }  function startclient(){     if(udp_client == null){         udp_client = new udpclient(udp_port);         udp_client.beginreceive(new asynccallback(startreceiveudp), null);         debug.log("searching udp");     } }  function startbroadcastudp(){     var udp_broadcast_message:string = "game server";      if(udp_broadcast_message != ""){         udp_server.send(encoding.ascii.getbytes (udp_broadcast_message), udp_broadcast_message.length);     } }  function startreceiveudp(result:iasyncresult){     debug.log("searching udp");     var udp_endpoint:ipendpoint = new ipendpoint(ipaddress.any, udp_port);     var udp_received_message_byte:byte[];      if(udp_client != null){         udp_received_message_byte = udp_client.endreceive(result, udp_endpoint);     }else{         return;     }      udp_client.beginreceive(new asynccallback(startreceiveudp), null);     udp_received_message = encoding.ascii.getstring(udp_received_message_byte);     debug.log("searching udp"); }  function update(){     if(udp_received_message != null){         debug.log("received message: " + udp_received_message);     } }  function ongui(){     if(!selected){         if(gui.button(rect(0, 0, 50, 50), "server")){             startserver();             selected = true;         }else if(gui.button(rect(50, 0, 50, 50), "client")){             startclient();             selected = true;         }     } }

it seams when start receiving udp (beginreceive in startclient) plan doesn't id. make sure case added few debug.logs , still got nothing

unfortunately async calls somehow problematic in unity. can use blocking calls in threads or nonblocking calls in main thread (in update methods).


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