transferred from trunk/Generation3 of lidgren-network

Samples/XNA sample/XnaGameServer/Program.cs

@@ -0,0 +1,122 @@
+using System;
+using System.Threading;
+
+using Lidgren.Network;
+
+namespace XnaGameServer
+{
+	class Program
+	{
+		static void Main(string[] args)
+		{
+			NetPeerConfiguration config = new NetPeerConfiguration("xnaapp");
+			config.EnableMessageType(NetIncomingMessageType.DiscoveryRequest);
+			config.Port = 14242;
+
+			// create and start server
+			NetServer server = new NetServer(config);
+			server.Start();
+
+			// schedule initial sending of position updates
+			double nextSendUpdates = NetTime.Now;
+
+			// run until escape is pressed
+			while (!Console.KeyAvailable || Console.ReadKey().Key != ConsoleKey.Escape)
+			{
+				NetIncomingMessage msg;
+				while ((msg = server.ReadMessage()) != null)
+				{
+					switch (msg.MessageType)
+					{
+						case NetIncomingMessageType.DiscoveryRequest:
+							//
+							// Server received a discovery request from a client; send a discovery response (with no extra data attached)
+							//
+							server.SendDiscoveryResponse(null, msg.SenderEndpoint);
+							break;
+						case NetIncomingMessageType.VerboseDebugMessage:
+						case NetIncomingMessageType.DebugMessage:
+						case NetIncomingMessageType.WarningMessage:
+						case NetIncomingMessageType.ErrorMessage:
+							//
+							// Just print diagnostic messages to console
+							//
+							Console.WriteLine(msg.ReadString());
+							break;
+						case NetIncomingMessageType.StatusChanged:
+							NetConnectionStatus status = (NetConnectionStatus)msg.ReadByte();
+							if (status == NetConnectionStatus.Connected)
+							{
+								//
+								// A new player just connected!
+								//
+								Console.WriteLine(NetUtility.ToHexString(msg.SenderConnection.RemoteUniqueIdentifier) + " connected!");
+
+								// randomize his position and store in connection tag
+								msg.SenderConnection.Tag = new int[] {
+									NetRandom.Instance.Next(10, 100),
+									NetRandom.Instance.Next(10, 100)
+								};
+							}
+
+							break;
+						case NetIncomingMessageType.Data:
+							//
+							// The client sent input to the server
+							//
+							int xinput = msg.ReadInt32();
+							int yinput = msg.ReadInt32();
+
+							int[] pos = msg.SenderConnection.Tag as int[];
+
+							// fancy movement logic goes here; we just append input to position
+							pos[0] += xinput;
+							pos[1] += yinput;
+							break;
+					}
+
+					//
+					// send position updates 30 times per second
+					//
+					double now = NetTime.Now;
+					if (now > nextSendUpdates)
+					{
+						// Yes, it's time to send position updates
+
+						// for each player...
+						foreach (NetConnection player in server.Connections)
+						{
+							// ... send information about every other player (actually including self)
+							foreach (NetConnection otherPlayer in server.Connections)
+							{
+								// send position update about 'otherPlayer' to 'player'
+								NetOutgoingMessage om = server.CreateMessage();
+
+								// write who this position is for
+								om.Write(otherPlayer.RemoteUniqueIdentifier);
+
+								if (otherPlayer.Tag == null)
+									otherPlayer.Tag = new int[2];
+
+								int[] pos = otherPlayer.Tag as int[];
+								om.Write(pos[0]);
+								om.Write(pos[1]);
+
+								// send message
+								server.SendMessage(om, player, NetDeliveryMethod.Unreliable);
+							}
+						}
+
+						// schedule next update
+						nextSendUpdates += (1.0 / 30.0);
+					}
+				}
+
+				// sleep to allow other processes to run smoothly
+				Thread.Sleep(1);
+			}
+
+			server.Shutdown("app exiting");
+		}
+	}
+}