added methods to send to all in lobby

Client/Client.cs

@@ -0,0 +1,108 @@
+using SharedClientServer;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Net.Sockets;
+using System.Text;
+
+namespace Client
+{
+    class Client : ObservableObject
+    {
+        private TcpClient tcpClient;
+        private NetworkStream stream;
+        private byte[] buffer = new byte[1024];
+        private byte[] totalBuffer = new byte[1024];
+        private int totalBufferReceived = 0;
+        public int Port = 5555;
+        public bool Connected = false;
+        //TODO send login packet to server with ClientServerUtil.createpayload(0x01,dynamic json with username)
+        public string username;
+
+        public Client()
+        {
+            this.tcpClient = new TcpClient();
+            tcpClient.BeginConnect("localhost", Port, new AsyncCallback(OnConnect), null);
+        }
+
+        private void OnConnect(IAsyncResult ar)
+        {
+            this.tcpClient.EndConnect(ar);
+            this.stream = tcpClient.GetStream();
+            this.stream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(OnReadComplete),null);
+        }
+
+        private void OnReadComplete(IAsyncResult ar)
+        {
+            int amountReceived = stream.EndRead(ar);
+
+            if (totalBufferReceived + amountReceived > 1024)
+            {
+                throw new OutOfMemoryException("buffer too small");
+            }
+
+            Array.Copy(buffer, 0, totalBuffer, totalBufferReceived, amountReceived);
+            totalBufferReceived += amountReceived;
+
+            int expectedMessageLength = BitConverter.ToInt32(totalBuffer, 0);
+
+            while (totalBufferReceived >= expectedMessageLength)
+            {
+                // we have received the complete packet
+                byte[] message = new byte[expectedMessageLength];
+                // put the message received into the message array
+                Array.Copy(totalBuffer, 0, message, 0, expectedMessageLength);
+
+                handleData(message);
+
+                totalBufferReceived -= expectedMessageLength;
+                expectedMessageLength = BitConverter.ToInt32(totalBuffer, 0);
+            }
+
+            stream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(OnReadComplete), null);
+
+        }
+
+        private void handleData(byte[] message)
+        {
+            byte id = message[0];
+            byte[] payload = new byte[message.Length - 1];
+            Array.Copy(message, 1, payload, 0, message.Length - 1);
+            switch (id)
+            {
+                case 0x01:
+                    // json log in username data
+                    break;
+                case 0x02:
+                    // json message data
+                    (string, string) combo = JSONConvert.GetUsernameAndMessage(payload);
+                    string textUsername = combo.Item1;
+                    string textMsg = combo.Item2;
+                    //TODO display username and message in chat window
+                    break;
+
+                case 0x03:
+                    // lobby data
+                    //TODO fill lobby with the data received
+                    break;
+                case 0x04:
+                    // canvas data
+                    break;
+                default:
+                    Debug.WriteLine("[CLIENT] Received weird identifier: " + id);
+                    break;
+            }
+
+        }
+
+        public void SendMessage(byte[] message)
+        {
+            stream.BeginWrite(message, 0, message.Length, new AsyncCallback(OnWriteComplete), null);
+        }
+
+        private void OnWriteComplete(IAsyncResult ar)
+        {
+            stream.EndWrite(ar);
+        }
+    }
+}

Client/Client.csproj

@@ -8,6 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="MvvmLightLibs" Version="5.4.1.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
     <PackageReference Include="PropertyChanged.Fody" Version="3.2.9" />
   </ItemGroup>
 
@@ -15,4 +16,6 @@
     <PackageReference Include="AsyncAwaitBestPractices" Version="4.3.0" />
   </ItemGroup>
 
+  <Import Project="..\SharedClientServer\SharedClientServer.projitems" Label="Shared" />
+
 </Project>

Client/ViewModel.cs

@@ -4,6 +4,7 @@ using System.Collections.Generic;
 using System.ComponentModel;
 using System.Text;
 using System.Windows.Input;
+using SharedClientServer;
 
 namespace Client
 {

Eindproject/Eindproject.sln

@@ -13,6 +13,7 @@ Global
 	GlobalSection(SharedMSBuildProjectFiles) = preSolution
 		..\SharedClientServer\SharedClientServer.projitems*{67a9bf1a-d317-47ca-9f07-c3480d1360ff}*SharedItemsImports = 5
 		..\SharedClientServer\SharedClientServer.projitems*{6d26f969-9cb1-414f-ac3e-7253d449ac5a}*SharedItemsImports = 13
+		..\SharedClientServer\SharedClientServer.projitems*{83768edb-097e-4089-a5de-208cb252d1a0}*SharedItemsImports = 5
 	EndGlobalSection
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU

Server/Models/ServerClient.cs

@@ -90,22 +90,30 @@ namespace Server.Models
             Array.Copy(message,1,payload,0,message.Length-1);
             switch(id)
             {
+                
                 case 0x01:
-                    // canvas data
+                    // json log in username data
+                    string uName = JSONConvert.GetUsernameLogin(message);
+                    if (uName != null) Username = uName;
+                    Debug.WriteLine("[SERVERCLIENT] set username to " + Username);
                     break;
                 case 0x02:
                     // json message data
                     (string, string) combo = JSONConvert.GetUsernameAndMessage(payload);
                     string textUsername = combo.Item1;
                     string textMsg = combo.Item2;
+
                     // todo handle sending to all except this user the username and message to display in chat
                     break;
 
                 case 0x03:
-                    // object data
+                    // lobby data
+                    break;
+                case 0x04:
+                    // canvas data
                     break;
                 default:
-                    Debug.WriteLine("Received weird identifier: " + id);
+                    Debug.WriteLine("[SERVER] Received weird identifier: " + id);
                     break;
             }
             //TODO implement ways to handle the message

Server/Models/ServerCommunication.cs

@@ -1,4 +1,5 @@
 
+using Client;
 using SharedClientServer;
 using System;
 using System.Collections.Generic;
@@ -15,6 +16,8 @@ namespace Server.Models
         private List<ServerClient> serverClients;
         public bool Started = false;
         public int ClientsConnected { get { return serverClients.Count; } }
+        public List<Lobby> lobbies;
+        private Dictionary<Lobby, List<ServerClient>> serverClientsInlobbies;
 
         /// <summary>
         /// use a padlock object to make sure the singleton is thread-safe
@@ -28,6 +31,8 @@ namespace Server.Models
         {
             listener = new TcpListener(IPAddress.Any, port);
             serverClients = new List<ServerClient>();
+            lobbies = new List<Lobby>();
+            serverClientsInlobbies = new Dictionary<Lobby, List<ServerClient>>();
         }
 
         /// <summary>
@@ -87,12 +92,44 @@ namespace Server.Models
             }
         }
 
-        public void sendToAllExcept(string username, byte[] message)
+        public void SendToAllExcept(string username, byte[] message)
         {
             foreach (ServerClient sc in serverClients)
             {
                 if (sc.Username != username) sc.sendMessage(message);
             }
         }
+
+        public void SendToLobby(Lobby lobby, byte[] message)
+        {
+            foreach (Lobby l in lobbies)
+            {
+                if (l == lobby)
+                {
+                    foreach (ServerClient sc in serverClientsInlobbies[l])
+                    {
+                        sc.sendMessage(message);
+                    }
+                    break;
+                }
+            }
+        }
+
+        public void AddToLobby(Lobby lobby, string username)
+        {
+            foreach (Lobby l in lobbies)
+            {
+                if (l == lobby)
+                {
+                    bool succ;
+                    l.AddUsername(username, out succ);
+                    if (!succ)
+                    {
+                        // TODO send lobby full message
+                    }
+                    break;
+                }
+            }
+        }
     }
 }

Server/Server.csproj

@@ -6,8 +6,6 @@
     <UseWPF>true</UseWPF>
   </PropertyGroup>
 
-  <Import Project="..\SharedClientServer\SharedClientServer.projitems" Label="Shared" />
-
   <ItemGroup>
     <PackageReference Include="AsyncAwaitBestPractices" Version="4.3.0" />
     <PackageReference Include="MvvmLightLibs" Version="5.4.1.1" />
@@ -15,4 +13,6 @@
     <PackageReference Include="PropertyChanged.Fody" Version="3.2.9" />
   </ItemGroup>
 
+  <Import Project="..\SharedClientServer\SharedClientServer.projitems" Label="Shared" />
+
 </Project>

SharedClientServer/ClientServerUtil.cs

@@ -8,6 +8,15 @@ namespace SharedClientServer
 {
     class ClientServerUtil
     {
+        // creates a message array to send to the server or to clients
+        public byte[] createPayload(byte id, string payload)
+        {
+            byte[] stringAsBytes = Encoding.ASCII.GetBytes(payload);
+            byte[] res = new byte[stringAsBytes.Length + 1];
+            res[0] = id;
+            Array.Copy(stringAsBytes, 0, res, 1, stringAsBytes.Length);
+            return res;
+        }
 
     }
 }

SharedClientServer/JSONConvert.cs

@@ -13,5 +13,12 @@ namespace SharedClientServer
             dynamic payload = JsonConvert.DeserializeObject(msg);
             return (payload.username, payload.message);
         }
+
+        public static string GetUsernameLogin(byte[] json)
+        {
+            string msg = Encoding.ASCII.GetString(json);
+            dynamic payload = JsonConvert.DeserializeObject(msg);
+            return payload.username;
+        }
     }
 }

SharedClientServer/Lobby.cs

@@ -13,12 +13,24 @@ namespace Client
         private int _id;
         private int _playersIn;
         private int _maxPlayers;
+        private List<string> _usernames;
+
+        public void AddUsername(string username, out bool success)
+        {
+            success = false;
+            if (_usernames.Count < _maxPlayers)
+            {
+                _usernames.Add(username);
+                success = true;
+            }
+        }
 
         public Lobby(int id, int playersIn, int maxPlayers)
         {
             _id = id;
             _playersIn = playersIn;
             _maxPlayers = maxPlayers;
+            _usernames = new List<string>();
         }
 
         public int ID

SharedClientServer/SharedClientServer.projitems

@@ -11,6 +11,7 @@
   <ItemGroup>
     <Compile Include="$(MSBuildThisFileDirectory)ClientServerUtil.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)JSONConvert.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Lobby.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ObservableObject.cs" />
   </ItemGroup>
 </Project>