private void MGServer_DoWork (object sender, DoWorkEventArgs e)
{
BackgroundWorker worker = sender as BackgroundWorker;
NetPeerConfiguration config = new NetPeerConfiguration (applicationIdentifier);
config.EnableMessageType (NetIncomingMessageType.DiscoveryRequest);
config.EnableMessageType (NetIncomingMessageType.DiscoveryResponse);
config.EnableMessageType (NetIncomingMessageType.NatIntroductionSuccess);
if (availableSession == null)
config.Port = port;
// create and start server
peer = new NetServer (config);
peer.Start ();
myLocalAddress = GetMyLocalIpAddress ();
IPAddress adr = IPAddress.Parse (myLocalAddress);
myLocalEndPoint = new IPEndPoint (adr, port);
// force a little wait until we have a LocalGamer otherwise things
// break. This is the first item in the queue so it shouldnt take long before we
// can continue.
while (session.LocalGamers.Count <= 0)
{
Thread.Sleep(10);
}
if (availableSession != null) {
if (!this.online) {
peer.Connect (availableSession.EndPoint);
} else {
RequestNATIntroduction (availableSession.EndPoint, peer);
}
} else {
if (this.online) {
IPAddress ipaddr = NetUtility.Resolve (masterServer);
if (ipaddr != null) {
m_masterServer = new IPEndPoint (ipaddr, masterserverport);
LocalNetworkGamer localMe = session.LocalGamers [0];
NetOutgoingMessage om = peer.CreateMessage ();
om.Write ((byte)0);
om.Write (session.AllGamers.Count);
om.Write (localMe.Gamertag);
om.Write (session.PrivateGamerSlots);
om.Write (session.MaxGamers);
om.Write (localMe.IsHost);
om.Write (myLocalEndPoint);
om.Write (peer.Configuration.AppIdentifier);
// send up session properties
int[] propertyData = new int[session.SessionProperties.Count * 2];
NetworkSessionProperties.WriteProperties (session.SessionProperties, propertyData);
for (int x = 0; x < propertyData.Length; x++) {
om.Write (propertyData [x]);
}
peer.SendUnconnectedMessage (om, m_masterServer); // send message to peer
} else {
throw new Exception ("Could not resolve live host");
}
}
}
// run until we are done
do {
NetIncomingMessage msg;
while ((msg = peer.ReadMessage ()) != null) {
switch (msg.MessageType) {
case NetIncomingMessageType.UnconnectedData :
break;
case NetIncomingMessageType.NatIntroductionSuccess:
#if !WINDOWS_PHONE
Game.Instance.Log("NAT punch through OK " + msg.SenderEndpoint);
#endif
peer.Connect (msg.SenderEndpoint);
break;
case NetIncomingMessageType.DiscoveryRequest:
//
// Server received a discovery request from a client; send a discovery response (with no extra data attached)
//
// Get the primary local gamer
LocalNetworkGamer localMe = session.LocalGamers [0];
NetOutgoingMessage om = peer.CreateMessage ();
om.Write (session.RemoteGamers.Count);
om.Write (localMe.Gamertag);
om.Write (session.PrivateGamerSlots);
om.Write (session.MaxGamers);
om.Write (localMe.IsHost);
int[] propertyData = new int[session.SessionProperties.Count * 2];
NetworkSessionProperties.WriteProperties (session.SessionProperties, propertyData);
for (int x = 0; x < propertyData.Length; x++) {
om.Write (propertyData [x]);
}
peer.SendDiscoveryResponse (om, msg.SenderEndpoint);
break;
case NetIncomingMessageType.VerboseDebugMessage:
case NetIncomingMessageType.DebugMessage:
case NetIncomingMessageType.WarningMessage:
case NetIncomingMessageType.ErrorMessage:
//
// Just print diagnostic messages to console
//
#if !WINDOWS_PHONE
Game.Instance.Log(msg.ReadString());
#endif
break;
case NetIncomingMessageType.StatusChanged:
NetConnectionStatus status = (NetConnectionStatus)msg.ReadByte ();
if (status == NetConnectionStatus.Disconnected) {
#if !WINDOWS_PHONE
Game.Instance.Log(NetUtility.ToHexString(msg.SenderConnection.RemoteUniqueIdentifier) + " disconnected! from " + msg.SenderEndpoint);
#endif
CommandGamerLeft cgj = new CommandGamerLeft (msg.SenderConnection.RemoteUniqueIdentifier);
CommandEvent cmde = new CommandEvent (cgj);
session.commandQueue.Enqueue (cmde);
}
if (status == NetConnectionStatus.Connected) {
//
// A new player just connected!
//
if (!pendingGamers.ContainsKey (msg.SenderConnection.RemoteUniqueIdentifier)) {
#if !WINDOWS_PHONE
Game.Instance.Log(NetUtility.ToHexString(msg.SenderConnection.RemoteUniqueIdentifier) + " connected! from " + msg.SenderEndpoint);
#endif
pendingGamers.Add (msg.SenderConnection.RemoteUniqueIdentifier, msg.SenderConnection);
SendProfileRequest (msg.SenderConnection);
} else {
#if !WINDOWS_PHONE
Game.Instance.Log("Already have a connection for that user, this is probably due to both NAT intro requests working");
#endif
}
}
break;
case NetIncomingMessageType.Data:
NetworkMessageType mt = (NetworkMessageType)msg.ReadByte ();
switch (mt) {
case NetworkMessageType.Data:
byte[] data = new byte[msg.LengthBytes - 1];
msg.ReadBytes (data, 0, data.Length);
CommandEvent cme = new CommandEvent (new CommandReceiveData (msg.SenderConnection.RemoteUniqueIdentifier,
data));
session.commandQueue.Enqueue (cme);
break;
case NetworkMessageType.Introduction:
var introductionAddress = msg.ReadString ();
try {
IPEndPoint endPoint = ParseIPEndPoint (introductionAddress);
if (myLocalEndPoint.ToString () != endPoint.ToString () && !AlreadyConnected (endPoint)) {
#if !WINDOWS_PHONE
Game.Instance.Log("Received Introduction for: " + introductionAddress +
" and I am: " + myLocalEndPoint + " from: " + msg.SenderEndpoint);
#endif
peer.Connect (endPoint);
}
} catch (Exception exc) {
#if !WINDOWS_PHONE
Game.Instance.Log("Error parsing Introduction: " + introductionAddress + " : " + exc.Message);
#endif
}
break;
case NetworkMessageType.GamerProfile:
#if !WINDOWS_PHONE
Game.Instance.Log("Profile recieved from: " + NetUtility.ToHexString(msg.SenderConnection.RemoteUniqueIdentifier));
#endif
if (pendingGamers.ContainsKey (msg.SenderConnection.RemoteUniqueIdentifier)) {
pendingGamers.Remove (msg.SenderConnection.RemoteUniqueIdentifier);
msg.ReadInt32 ();
string gamerTag = msg.ReadString ();
msg.ReadInt32 ();
msg.ReadInt32 ();
GamerStates state = (GamerStates)msg.ReadInt32 ();
state &= ~GamerStates.Local;
CommandGamerJoined cgj = new CommandGamerJoined (msg.SenderConnection.RemoteUniqueIdentifier);
cgj.GamerTag = gamerTag;
cgj.State = state;
CommandEvent cmde = new CommandEvent (cgj);
session.commandQueue.Enqueue (cmde);
} else {
#if !WINDOWS_PHONE
Game.Instance.Log("We received a profile for an existing gamer. Need to update it.");
#endif
}
break;
case NetworkMessageType.RequestGamerProfile:
#if !WINDOWS_PHONE
Game.Instance.Log("Profile Request recieved from: " + msg.SenderEndpoint);
#endif
SendProfile (msg.SenderConnection);
break;
case NetworkMessageType.GamerStateChange:
GamerStates gamerstate = (GamerStates)msg.ReadInt32 ();
gamerstate &= ~GamerStates.Local;
#if !WINDOWS_PHONE
Game.Instance.Log("State Change from: " + msg.SenderEndpoint + " new State: " + gamerstate);
#endif
foreach (var gamer in session.RemoteGamers) {
if (gamer.RemoteUniqueIdentifier == msg.SenderConnection.RemoteUniqueIdentifier)
gamer.State = gamerstate;
}
break;
case NetworkMessageType.SessionStateChange:
NetworkSessionState sessionState = (NetworkSessionState)msg.ReadInt32 ();
foreach (var gamer in session.RemoteGamers) {
if (gamer.RemoteUniqueIdentifier == msg.SenderConnection.RemoteUniqueIdentifier) {
#if !WINDOWS_PHONE
Game.Instance.Log("Session State change from: " + NetUtility.ToHexString(msg.SenderConnection.RemoteUniqueIdentifier) +
" session is now: " + sessionState);
#endif
if (gamer.IsHost && sessionState == NetworkSessionState.Playing) {
session.StartGame ();
}
}
}
break;
}
break;
}
}
// sleep to allow other processes to run smoothly
// This may need to be changed depending on network throughput
Thread.Sleep (1);
if (worker.CancellationPending) {
#if !WINDOWS_PHONE
Game.Instance.Log("worker CancellationPending");
#endif
e.Cancel = true;
done = true;
}
} while (!done);
}
