added reconnecting to the vr server when no tunnel id is found

Client/Client.cs

@@ -27,16 +27,24 @@ namespace Client
             this.client = new TcpClient();
             this.connected = false;
             client.BeginConnect(adress, port, new AsyncCallback(OnConnect), null);
-
-            initEngine();
         }
 
         private void initEngine()
         {
             engineConnection = EngineConnection.INSTANCE;
+            engineConnection.OnNoTunnelId = retryEngineConnection;
             if (!engineConnection.Connected) engineConnection.Connect();
         }
 
+        private void retryEngineConnection()
+        {
+            Console.WriteLine("Could not connect to the VR engine. Please make sure you are running the simulation!");
+            Console.WriteLine("Press any key to retry connection");
+            Console.ReadKey();
+
+            engineConnection.CreateConnection();
+        }
+
         private void OnConnect(IAsyncResult ar)
         {
             this.client.EndConnect(ar);

Client/EngineConnection.cs

@@ -7,20 +7,22 @@ using System.Net.Sockets;
 namespace Client
 {
     public delegate void HandleSerial(string message);
+    public delegate void HandleNoTunnelId();
 
     public sealed class EngineConnection
     {
         private static EngineConnection instance = null;
         private static readonly object padlock = new object();
+        public HandleNoTunnelId OnNoTunnelId;
 
 
         private static PC[] PCs = {
             //new PC("DESKTOP-M2CIH87", "Fabian"),
             //new PC("T470S", "Shinichi"),
             //new PC("DESKTOP-DHS478C", "semme"),
-            new PC("HP-ZBOOK-SEM", "Sem"),
+            new PC("HP-ZBOOK-SEM", "Sem")
             //new PC("DESKTOP-TV73FKO", "Wouter"),
-            new PC("DESKTOP-SINMKT1", "Ralf van Aert"),
+            //new PC("DESKTOP-SINMKT1", "Ralf van Aert"),
             //new PC("NA", "Bart")
         };
 
@@ -62,6 +64,7 @@ namespace Client
         {
             TcpClient client = new TcpClient("145.48.6.10", 6666);
             stream = client.GetStream();
+            initReader();
             CreateConnection();
         }
 
@@ -69,9 +72,8 @@ namespace Client
         /// connects to the server and creates the tunnel
         /// </summary>
         /// <param name="stream">the network stream to use</param>
-        private void CreateConnection()
+        public void CreateConnection()
         {
-            initReader();
 
             WriteTextMessage( "{\r\n\"id\" : \"session/list\",\r\n\"serial\" : \"list\"\r\n}");
 
@@ -119,6 +121,8 @@ namespace Client
                 if (tunnelId == null)
                 {
                     Write("could not find a valid tunnel id!");
+                    OnNoTunnelId?.Invoke();
+                    Connected = false;
                     return;
                 }
             }