[ADDITION] added a new property to the user (may be removed later on), and made a check for the random word

[FIX] Callbacks weren't properly called

Client/Client.cs

@@ -21,6 +21,7 @@ namespace Client
     public delegate void CanvasReset();
     public delegate void LobbyCallback(int id);
 
+
     class Client : ObservableObject
     {
 
@@ -48,6 +49,7 @@ namespace Client
         private ClientData data = ClientData.Instance;
         public CanvasDataReceived CanvasDataReceived;
         public CanvasReset CReset;
+        public HandleIncomingPlayer UpdateUserScores;
         public Lobby[] Lobbies { get; set; }
 
         public Client(string username)
@@ -68,9 +70,10 @@ namespace Client
                 OnSuccessfullConnect?.Invoke();
                 OnLobbyUpdate = updateGameLobby;
                 SendMessage(JSONConvert.ConstructUsernameMessage(username));
-                this.stream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(OnReadComplete),null);
+                this.stream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(OnReadComplete), null);
 
-            } catch (Exception e)
+            }
+            catch (Exception e)
             {
                 Debug.WriteLine("Can't connect, retrying...");
                 tcpClient.BeginConnect("localhost", Port, new AsyncCallback(OnConnect), null);
@@ -92,7 +95,6 @@ namespace Client
                     throw new OutOfMemoryException("buffer too small");
                 }
 
-
                 Array.Copy(buffer, 0, totalBuffer, totalBufferReceived, amountReceived);
                 totalBufferReceived += amountReceived;
 
@@ -112,10 +114,11 @@ namespace Client
 
                 ar.AsyncWaitHandle.WaitOne();
                 stream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(OnReadComplete), null);
-            } catch (IOException e)
+            }
+            catch (IOException e)
             {
                 Debug.WriteLine("[CLIENT] server not responding! got error: " + e.Message);
-                OnServerDisconnect?.Invoke();   
+                OnServerDisconnect?.Invoke();
             }
         }
 
@@ -138,11 +141,16 @@ namespace Client
                     string textUsername = combo.Item1;
                     string textMsg = combo.Item2;
 
-                    if(textUsername != data.User.Username)
+                    if (textUsername != data.User.Username)
                     {
                         IncomingMsg?.Invoke(textUsername, textMsg);
                     }
 
+                    if (textMsg == data.User.RandomWord && !string.IsNullOrEmpty(data.User.RandomWord))
+                    {
+                        Debug.WriteLine($"[CLIENT] word has been guessed! {data.User.Username} + Word: {data.User.RandomWord}");
+                    }
+
                     //TODO display username and message in chat window
                     Debug.WriteLine("[CLIENT] INCOMING MESSAGE!");
                     Debug.WriteLine("[CLIENT] User name: {0}\t User message: {1}", textUsername, textMsg);
@@ -190,40 +198,46 @@ namespace Client
 
                         case JSONConvert.CANVAS_WRITING:
                             CanvasDataReceived?.Invoke(JSONConvert.getCoordinates(payload), JSONConvert.getCanvasDrawingColor(payload));
-                            // we hebben gedrawed, dus stuur dat we weer kunnen drawen
-                            
                             break;
                     }
-                break;
-
+                    break;
 
                 case JSONConvert.RANDOMWORD:
                     //Flag byte for receiving the random word.
                     int lobbyId = JSONConvert.GetLobbyID(payload);
-                    string randomWord = JSONConvert.GetRandomWord(payload);
-
-                    if (data.Lobby?.ID == lobbyId)
-                        RandomWord?.Invoke(randomWord);
-                    
+                    data.User.RandomWord = JSONConvert.GetRandomWord(payload);
+                    data.User.TurnToDraw = true; // Dit is test code, dit kan weg zodra alles lopende is.
+                    if (data.Lobby?.ID == lobbyId && data.User.TurnToDraw)
+                        RandomWord?.Invoke(data.User.RandomWord);
                     break;
+
                 default:
                     Debug.WriteLine("[CLIENT] Received weird identifier: " + id);
                     break;
             }
-            SendMessage(JSONConvert.GetMessageToSend(JSONConvert.MESSAGE_RECEIVED,null));
+            SendMessage(JSONConvert.GetMessageToSend(JSONConvert.MESSAGE_RECEIVED, null));
 
         }
 
+        /*
+         * Updates the current lobby with the joining players, 
+         * their player score is also tracked and should always be zero.
+         */
         private void updateGameLobby()
         {
+            Debug.WriteLine("[CLIENT] updating game lobby");
             foreach (var item in Lobbies)
             {
                 Debug.WriteLine("[CLIENT] lobby data: {0}", item.Users.Count);
                 if (item.ID == data.Lobby?.ID)
-                    IncomingPlayer?.Invoke(item);
+                {
+                    //IncomingPlayer?.Invoke(item);
+                    UpdateUserScores?.Invoke(item as Lobby);
+                }
+
             }
         }
-        
+
         public void SendMessage(byte[] message)
         {
             Debug.WriteLine("[CLIENT] sending message " + Encoding.ASCII.GetString(message));

Client/ViewModels/ViewModel.cs

@@ -61,6 +61,7 @@ namespace Client
             Debug.WriteLine("attempting to host game for " + ClientData.Instance.User.Username);
             client.SendMessage(JSONConvert.ConstructLobbyHostMessage());
             client.OnLobbyCreated = becomeHostForLobby;
+
         }
 
         private void becomeHostForLobby(int id)
@@ -68,6 +69,7 @@ namespace Client
             Debug.WriteLine($"got host succes with data {id} ");
             wantToBeHost = true;
             wantToBeHostId = id;
+            ClientData.Instance.User.Host = true;
             client.OnLobbiesReceivedAndWaitingForHost = hostLobbiesReceived;
         }
 
@@ -112,7 +114,7 @@ namespace Client
 
         private void updateLobbies()
         {
-            Debug.WriteLine("updating lobbies...");
+            Debug.WriteLine("[VIEWMODEL] updating lobbies...");
             Lobby[] lobbiesArr = client.Lobbies;
             Application.Current.Dispatcher.Invoke(delegate
             {
@@ -122,6 +124,11 @@ namespace Client
                 foreach (Lobby l in lobbiesArr)
                 {
                     _lobbies.Add(l);
+                    Lobby clientLobby = ClientData.Instance.Lobby;
+                    if (l.ID == clientLobby?.ID)
+                    {
+                        clientLobby = l;
+                    }
                 }
 
             });

Client/ViewModels/ViewModelGame.cs

@@ -48,19 +48,12 @@ namespace Client.ViewModels
         }
 
         private string _randomWord;
-
         public string RandomWord
         {
             get { return _randomWord; }
             set { _randomWord = value; }
         }
 
-        public static string Word
-        {
-            get;
-            set;
-        }
-
         public bool IsHost
         {
             get { return data.User.Host; }
@@ -69,17 +62,6 @@ namespace Client.ViewModels
         public ViewModelGame(GameWindow window)
         {
             this.window = window;
-            if (_payload == null)
-            {
-                _message = "";
-
-            }
-            else
-            {
-                //_message = data.Message;
-                //_username = data.User.Username;
-                //Messages.Add($"{data.User.Username}: {Message}");
-            }
 
             buffer = new double[maxLines][];
             linesQueue = new Queue<double[][]>();
@@ -91,6 +73,7 @@ namespace Client.ViewModels
             data.Client.RandomWord = HandleRandomWord;
             data.Client.IncomingMsg = HandleIncomingMsg;
             data.Client.IncomingPlayer = HandleIncomingPlayer;
+            data.Client.UpdateUserScores = UpdateUserScores;
         }
 
         public ICommand OnKeyDown { get; set; }
@@ -227,7 +210,7 @@ namespace Client.ViewModels
             data.Client.SendMessage(JSONConvert.GetMessageToSend(JSONConvert.MESSAGE, _payload));
         }
 
-        public static void HandleIncomingMsg(string username, string message)
+        public void HandleIncomingMsg(string username, string message)
         {
             Application.Current.Dispatcher.Invoke(delegate
             {
@@ -240,12 +223,12 @@ namespace Client.ViewModels
             data.Client.SendMessage(JSONConvert.ConstructLobbyLeaveMessage(data.Lobby.ID));
         }
 
-        public static void HandleRandomWord(string randomWord)
+        public void HandleRandomWord(string randomWord)
         {
             Debug.WriteLine("[CLIENT] Reached the handle random word method!");
             Application.Current.Dispatcher.Invoke(delegate
             {
-                Word = randomWord;
+                RandomWord = randomWord;
             });
         }
         public void HandleIncomingPlayer(Lobby lobby)
@@ -255,9 +238,34 @@ namespace Client.ViewModels
                 Players.Clear();
                 foreach (var item in lobby.Users)
                 {
-                    Players.Add(item.Username);
+                    Players.Add(item.Username + "\n" + item.Score);
                 }
             });
         }
+
+        private void UpdateUserScores(Lobby newLobby) {
+            Debug.WriteLine("[GAME] updating user scores");
+            List<User> newUsers = newLobby.Users;
+            // go over all users in current lobby
+            foreach (User user in data.Lobby?.Users)
+            {
+                // check with all users in new lobby
+                foreach (User newUser in newUsers)
+                {
+                    // and update the score
+                    if (newUser.Username == user.Username)
+                    {
+                        Debug.WriteLine($"[GAME] setting score of {user.Username} to {newUser.Score}. it was {user.Score}");
+                        user.Score = newUser.Score;
+                        break;
+                    }
+                }
+            }
+
+            // update all the scores in the player list
+            HandleIncomingPlayer(newLobby);
+        }
+
+        
     }
 }

Client/Views/GameWindow.xaml

@@ -38,10 +38,8 @@
             <xctk:ColorPicker Name="ClrPcker_Background" SelectedColorChanged="ClrPcker_Background_SelectedColorChanged_1" Grid.Column="1" HorizontalAlignment="Left" VerticalAlignment="Center" Height="22" Width="100"/>
 
 
-        <Label Name="GuessWord" Grid.Row="0" Grid.Column="1" Content="{Binding Path=RandomWord, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" VerticalAlignment="Center" HorizontalAlignment="Center"/>
+            <Label Name="GuessWord" Grid.Row="0" Grid.Column="2" Content="{Binding Path=RandomWord, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" VerticalAlignment="Center" HorizontalAlignment="Center" FontSize="20"/>
 
-            <Label Grid.Row="0" Grid.Column="2" FontSize="20" Content="" VerticalAlignment="Center" HorizontalAlignment="Center"/>
-            
             <Button Name="CanvasReset" Click="CanvasReset_Click" Grid.Row="0" Grid.Column="3" Content="RESET"/>
         </Grid>
 

Client/Views/LoginScreen.xaml

@@ -24,7 +24,7 @@
         <Label Grid.Row="2" FontSize="15" Content="(max amount of characters for the username is 10)"/>
 
         <TextBox Name="usernameTextbox" Grid.Row="1" Grid.Column="1" MaxLength="69" FontSize="30" VerticalAlignment="Center" HorizontalAlignment="Left" Width="250"/>
-        <Button Content="ENTER" Grid.Column="1" Grid.Row="1" VerticalAlignment="Center" HorizontalAlignment="Right" Width="100" Height="40" Click="Button_EnterUsername"/>
+        <Button Name="LoginButton" Content="ENTER" Grid.Column="1" Grid.Row="1" VerticalAlignment="Center" HorizontalAlignment="Right" Width="100" Height="40" Click="Button_EnterUsername"/>
 
         <Label Grid.Row="3" Grid.Column="0" Content="Tip of the century: base64 != UTF8!" FontSize="20" FontWeight="Bold"/>
     </Grid>

Client/Views/LoginScreen.xaml.cs

@@ -27,8 +27,12 @@ namespace Client.Views
 
         private void Button_EnterUsername(object sender, RoutedEventArgs e)
         {
-            User user = new User(usernameTextbox.Text);
+            string name = usernameTextbox.Text;
+            if (name == string.Empty) return;
+            User user = new User(name);
+
             Client client = new Client(user.Username);
+            LoginButton.IsEnabled = false;
             client.OnSuccessfullConnect = () =>
             {
                 // because we need to start the main window on a UI thread, we need to let the dispatcher handle it, which will execute the code on the ui thread
@@ -42,6 +46,7 @@ namespace Client.Views
                 });
             };
 
+            
         }
     }
 }

Server/Models/ServerClient.cs

@@ -22,6 +22,7 @@ namespace Server.Models
         private NetworkStream stream;
         private byte[] buffer = new byte[2048];
         private byte[] totalBuffer = new byte[2048];
+        private string _randomWord = "";
         private int totalBufferReceived = 0;
         public User User { get; set; }
         private ServerCommunication serverCom = ServerCommunication.INSTANCE;
@@ -145,6 +146,11 @@ namespace Server.Models
                         message = textMsg
                     };
 
+                    if (textMsg == _randomWord && !string.IsNullOrEmpty(_randomWord))
+                    {
+                        Debug.WriteLine($"[SERVERCLIENT] word has been guessed! {User.Username} + Word: {_randomWord}");
+                    }
+
                     //Sends the incomming message to be broadcast to all of the clients inside the current lobby.
                     serverCom.SendToLobby(serverCom.GetLobbyForUser(User), JSONConvert.GetMessageToSend(JSONConvert.MESSAGE, packet));
                     break;
@@ -234,11 +240,11 @@ namespace Server.Models
                     ServerCommunication.INSTANCE.sendToAll(JSONConvert.ConstructLobbyListMessage(ServerCommunication.INSTANCE.lobbies.ToArray()));
                     OnMessageReceivedOk = () =>
                     {
-
+                        _randomWord = JSONConvert.SendRandomWord("WordsForGame.json");
                         serverCom.sendToAll(JSONConvert.GetMessageToSend(JSONConvert.RANDOMWORD, new
                         {
                             id = serverCom.GetLobbyForUser(User).ID,
-                            word = JSONConvert.SendRandomWord("WordsForGame.json")
+                            word = _randomWord
                         }));
                         OnMessageReceivedOk = null;
                     };

SharedClientServer/User.cs

@@ -13,6 +13,7 @@ namespace SharedClientServer
         private bool _host;
         private bool _turnToDraw;
         private string _message;
+        private string _randomWord;
 
         [JsonConstructor]
         public User(string username, int score, bool host, bool turnToDraw)
@@ -90,5 +91,10 @@ namespace SharedClientServer
             get { return _turnToDraw; }
             set { _turnToDraw = value; }
         }
+        public string RandomWord
+        {
+            get { return _randomWord; }
+            set { _randomWord = value; }
+        }
     }
 }