[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

@@ -13,9 +13,15 @@ using static SharedClientServer.JSONConvert;
 namespace Client
 {
     public delegate void LobbyJoinCallback(bool isHost);
+
+    public delegate void RandomWord(string word);
+    public delegate void HandleIncomingMsg(string username, string msg);
+    internal delegate void HandleIncomingPlayer(Lobby lobby);
     public delegate void CanvasDataReceived(double[][] coordinates, Color color);
     public delegate void CanvasReset();
     public delegate void LobbyCallback(int id);
+
+
     class Client : ObservableObject
     {
 
@@ -34,11 +40,16 @@ namespace Client
         public LobbyJoinCallback OnLobbyJoinSuccess;
         public Callback OnLobbiesReceivedAndWaitingForHost;
         public Callback OnServerDisconnect;
+        public Callback OnLobbyUpdate;
         public LobbyCallback OnLobbyCreated;
         public LobbyCallback OnLobbyLeave;
+        public RandomWord RandomWord;
+        public HandleIncomingMsg IncomingMsg;
+        public HandleIncomingPlayer IncomingPlayer;
         private ClientData data = ClientData.Instance;
         public CanvasDataReceived CanvasDataReceived;
         public CanvasReset CReset;
+        public HandleIncomingPlayer UpdateUserScores;
         public Lobby[] Lobbies { get; set; }
 
         public Client(string username)
@@ -57,10 +68,12 @@ namespace Client
                 this.tcpClient.EndConnect(ar);
                 this.stream = tcpClient.GetStream();
                 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);
@@ -72,6 +85,7 @@ namespace Client
 
             if (ar == null || (!ar.IsCompleted) || (!this.stream.CanRead) || !this.tcpClient.Client.Connected)
                 return;
+
             try
             {
                 int amountReceived = stream.EndRead(ar);
@@ -81,7 +95,6 @@ namespace Client
                     throw new OutOfMemoryException("buffer too small");
                 }
 
-
                 Array.Copy(buffer, 0, totalBuffer, totalBufferReceived, amountReceived);
                 totalBufferReceived += amountReceived;
 
@@ -101,10 +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();
             }
         }
 
@@ -127,9 +141,14 @@ namespace Client
                     string textUsername = combo.Item1;
                     string textMsg = combo.Item2;
 
-                    if(textUsername != data.User.Username)
+                    if (textUsername != data.User.Username)
                     {
-                        ViewModels.ViewModelGame.HandleIncomingMsg(textUsername, textMsg);
+                        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
@@ -147,6 +166,7 @@ namespace Client
                             Lobbies = JSONConvert.GetLobbiesFromMessage(payload);
                             OnLobbiesListReceived?.Invoke();
                             OnLobbiesReceivedAndWaitingForHost?.Invoke();
+                            OnLobbyUpdate?.Invoke();
                             break;
                         case LobbyIdentifier.HOST:
                             // we receive this when the server has made us a host of a new lobby
@@ -156,7 +176,6 @@ namespace Client
                             OnLobbyCreated?.Invoke(lobbyCreatedID);
                             break;
                         case LobbyIdentifier.JOIN_SUCCESS:
-
                             OnLobbyJoinSuccess?.Invoke(JSONConvert.GetLobbyJoinIsHost(payload));
                             break;
                         case LobbyIdentifier.LEAVE:
@@ -179,33 +198,50 @@ 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);
-
+                    data.User.RandomWord = JSONConvert.GetRandomWord(payload);
-                    if(data.Lobby?.ID == lobbyId)
+                    data.User.TurnToDraw = true; // Dit is test code, dit kan weg zodra alles lopende is.
-                    ViewModels.ViewModelGame.HandleRandomWord(JSONConvert.GetRandomWord(payload));
+                    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);
+                    UpdateUserScores?.Invoke(item as Lobby);
+                }
+
+            }
+        }
+
         public void SendMessage(byte[] message)
         {
             Debug.WriteLine("[CLIENT] sending message " + Encoding.ASCII.GetString(message));
             stream.BeginWrite(message, 0, message.Length, new AsyncCallback(OnWriteComplete), null);
-
         }
 
         private void OnWriteComplete(IAsyncResult ar)

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

@@ -1,5 +1,4 @@
-
+using Client.Views;
-using Client.Views;
 using GalaSoft.MvvmLight.Command;
 using SharedClientServer;
 using System;
@@ -9,7 +8,6 @@ using System.ComponentModel;
 using System.Diagnostics;
 using System.Timers;
 using System.Windows;
-using System.Windows.Controls;
 using System.Windows.Input;
 using System.Windows.Media;
 using System.Windows.Shapes;
@@ -30,15 +28,10 @@ namespace Client.ViewModels
         private Timer queueTimer;
 
         public static ObservableCollection<string> Messages { get; } = new ObservableCollection<string>();
+        public ObservableCollection<string> Players { get; } = new ObservableCollection<string>();
 
         private dynamic _payload;
 
-        public static string Word
-        {
-            get;
-            set;
-        }
-
         public string _username;
 
         public string _message;
@@ -54,6 +47,13 @@ namespace Client.ViewModels
             }
         }
 
+        private string _randomWord;
+        public string RandomWord
+        {
+            get { return _randomWord; }
+            set { _randomWord = value; }
+        }
+
         public bool IsHost
         {
             get { return data.User.Host; }
@@ -62,17 +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[][]>();
@@ -81,6 +70,10 @@ namespace Client.ViewModels
             ButtonResetCanvas = new RelayCommand(CanvasResetLocal);
             data.Client.CanvasDataReceived = UpdateCanvasWithNewData;
             data.Client.CReset = CanvasResetData;
+            data.Client.RandomWord = HandleRandomWord;
+            data.Client.IncomingMsg = HandleIncomingMsg;
+            data.Client.IncomingPlayer = HandleIncomingPlayer;
+            data.Client.UpdateUserScores = UpdateUserScores;
         }
 
         public ICommand OnKeyDown { get; set; }
@@ -149,12 +142,16 @@ namespace Client.ViewModels
             }
         }
 
+        public void Canvas_MouseUp(object sender, MouseButtonEventArgs e)
+        {
+            sendArrayFromQueue(sender, null);
+        }
+
         private void sendArrayFromQueue(object sender, ElapsedEventArgs e)
         {
             
             if (linesQueue.Count != 0)
             {
-                Debug.WriteLine("[GAME] sending canvas data...");
                 double[][] temp = linesQueue.Dequeue();
                 data.Client.SendMessage(JSONConvert.ConstructDrawingCanvasData(temp,color));
             }
@@ -213,32 +210,62 @@ namespace Client.ViewModels
             data.Client.SendMessage(JSONConvert.GetMessageToSend(JSONConvert.MESSAGE, _payload));
         }
 
-        /*
+        public void HandleIncomingMsg(string username, string message)
-         * MISC make this a callback
-         * Handles the incoming chat message from another client.
-         */
-        public static void HandleIncomingMsg(string username, string message)
         {
             Application.Current.Dispatcher.Invoke(delegate
             {
                 Messages.Add($"{username}: {message}");
             });
         }
-        public void LeaveGame(object sender, CancelEventArgs e)
+        public void LeaveGame(object sender, System.ComponentModel.CancelEventArgs e)
         {
             Debug.WriteLine("Leaving...");
             data.Client.SendMessage(JSONConvert.ConstructLobbyLeaveMessage(data.Lobby.ID));
         }
 
-        /*
+        public void HandleRandomWord(string randomWord)
-         * MISC make this a callback
-         * Handles the random word that has been received from the server.
-         */
-        public static void HandleRandomWord(string randomWord)
         {
             Debug.WriteLine("[CLIENT] Reached the handle random word method!");
-            Word = "NegerPik";
+            Application.Current.Dispatcher.Invoke(delegate
+            {
+                RandomWord = randomWord;
+            });
         }
+        public void HandleIncomingPlayer(Lobby lobby)
+        {
+            Application.Current.Dispatcher.Invoke(delegate
+            {
+                Players.Clear();
+                foreach (var item in lobby.Users)
+                {
+                    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

@@ -22,16 +22,9 @@
         <Grid Grid.Column="0" Grid.Row="1">
             <Grid.RowDefinitions>
                 <RowDefinition/>
-                <RowDefinition/>
-                <RowDefinition/>
-                <RowDefinition/>
-                <RowDefinition/>
-                <RowDefinition/>
-                <RowDefinition/>
-                <RowDefinition/>
             </Grid.RowDefinitions>
 
-
+            <ListBox Name="PlayerList" ItemsSource="{Binding Path=Players}" Margin="10,0,0,10" FontSize="20"/>
         </Grid>
 
         <Grid Grid.Row="0" Grid.Column="1">
@@ -44,19 +37,17 @@
             <Label Grid.Row="0" Grid.Column="0" VerticalAlignment="Center" FontSize="20" Content="Pick a color -->"/>
             <xctk:ColorPicker Name="ClrPcker_Background" SelectedColorChanged="ClrPcker_Background_SelectedColorChanged_1" Grid.Column="1" HorizontalAlignment="Left" VerticalAlignment="Center" Height="22" Width="100"/>
 
-            <Label Grid.Row="0" Grid.Column="2" FontSize="20" Content="" 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"/>
+
             <Button Name="CanvasReset" Click="CanvasReset_Click" Grid.Row="0" Grid.Column="3" Content="RESET"/>
         </Grid>
 
         <Button Name="StartGame" Grid.Row="0" Grid.Column="2" Content="Start Game" FontSize="20" Command="{Binding ButtonStartGame}" IsEnabled="{Binding IsHost}"/>
-        <Label Name="GuessWord" Grid.Row="0" Grid.Column="1" Content="{Binding Path=Word, UpdateSourceTrigger=PropertyChanged}" Margin="140,0,109,0"/>
-
-        <xctk:ColorPicker Name="ClrPcker_Background" SelectedColorChanged="ClrPcker_Background_SelectedColorChanged_1" Grid.Column="1" HorizontalAlignment="Left" VerticalAlignment="Center" Height="22" Width="100"/>
 
 
         <Border Grid.Row="1" Grid.Column="1" Margin ="10,10,10,10" BorderBrush="Black" BorderThickness ="2.5">
-            <Canvas Name="CanvasForPaint" MouseDown="CanvasForPaint_MouseDown" MouseMove="CanvasForPaint_MouseMove">
+            <Canvas Name="CanvasForPaint" MouseDown="CanvasForPaint_MouseDown" MouseMove="CanvasForPaint_MouseMove" MouseUp="CanvasForPaint_MouseUp">
                 <Canvas.Background>
                     <SolidColorBrush Color="White" Opacity="0"/>
                 </Canvas.Background>
@@ -64,9 +55,9 @@
         </Border>
 
         <Grid Grid.Column="2" Grid.Row="1">
-            <ListBox Name ="TextBox" ItemsSource="{Binding Path=Messages}" Margin="0,0,0,69"/>
+            <ListBox Name ="TextBox" ItemsSource="{Binding Path=Messages}" Margin="0,0,10,69" />
 
-            <TextBox Name="ChatBox" Text="{Binding Message, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Margin="0,465,0,0">
+            <TextBox Name="ChatBox" Text="{Binding Message, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Margin="0,465,10,0">
                 <TextBox.InputBindings>
                     <KeyBinding Key="Return" Command="{Binding OnKeyDown}"/>
                 </TextBox.InputBindings>

Client/Views/GameWindow.xaml.cs

@@ -36,16 +36,6 @@ namespace Client.Views
         private void CanvasReset_Click(object sender, RoutedEventArgs e)
         {
             CanvasForPaint.Children.Clear();
-
-            //FOR FUTURE USE, IF NECCESSARY
-            //TEST.Children.Clear();
-
-            //foreach (UIElement child in CanvasForPaint.Children)
-            //{
-            //    var xaml = System.Windows.Markup.XamlWriter.Save(child);
-            //    var deepCopy = System.Windows.Markup.XamlReader.Parse(xaml) as UIElement;
-            //    TEST.Children.Add(deepCopy);
-            //}
         }
 
         private void ClrPcker_Background_SelectedColorChanged_1(object sender, RoutedPropertyChangedEventArgs<Color?> e)
@@ -53,5 +43,9 @@ namespace Client.Views
             viewModel.Color_Picker(e, this);
         }
 
+        private void CanvasForPaint_MouseUp(object sender, MouseButtonEventArgs e)
+        {
+            viewModel.Canvas_MouseUp(sender, e);
+        }
     }
 }

Client/Views/LoginScreen.xaml

@@ -11,6 +11,7 @@
             <RowDefinition Height="60"/>
             <RowDefinition Height="50"/>
             <RowDefinition Height="30"/>
+            <RowDefinition Height="100"/>
         </Grid.RowDefinitions>
 
         <Grid.ColumnDefinitions>
@@ -22,8 +23,9 @@
         <Label Grid.Row="1" FontSize="30" Content="Enter a username:"/>
         <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="10" FontSize="30" VerticalAlignment="Center" HorizontalAlignment="Left" Width="250"/>
+        <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>
 </Window>

Client/Views/LoginScreen.xaml.cs

@@ -1,4 +1,5 @@
-using SharedClientServer;
+using Client.ViewModels;
+using SharedClientServer;
 using System;
 using System.Collections.Generic;
 using System.Text;
@@ -26,8 +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
@@ -41,6 +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;
@@ -59,6 +60,7 @@ namespace Server.Models
                     throw new OutOfMemoryException("buffer is too small!");
                 }
 
+
                 // copy the received bytes into the buffer
                 Array.Copy(buffer, 0, totalBuffer, totalBufferReceived, bytesReceived);
                 // add the bytes we received to the total amount
@@ -90,6 +92,7 @@ namespace Server.Models
 
 
                 }
+
                 ar.AsyncWaitHandle.WaitOne();
                 // start reading for a new message
                 stream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(OnRead), null);
@@ -143,6 +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;
@@ -232,10 +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/JSONConvert.cs

@@ -4,6 +4,7 @@ using Newtonsoft.Json.Linq;
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.IO;
 using System.Linq;
 using System.Text;
 using System.Windows.Media;

SharedClientServer/Lobby.cs

@@ -6,7 +6,7 @@ using System.Text;
 
 namespace Client
 {
-    class Lobby : INotifyPropertyChanged
+    internal class Lobby : INotifyPropertyChanged
     {
         public event PropertyChangedEventHandler PropertyChanged;
 

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; }
+        }
     }
 }