[FIX] fixed canvas data being sent to person drawing

[ADDITION] added a new property to the user (may be removed later on)…

Client/Client.cs

@@ -72,7 +72,8 @@ namespace Client
                 SendMessage(JSONConvert.ConstructUsernameMessage(username));
                 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);
@@ -113,7 +114,8 @@ 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();
@@ -144,6 +146,11 @@ namespace Client
                         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);
@@ -191,29 +198,59 @@ namespace Client
 
                         case JSONConvert.CANVAS_WRITING:
                             CanvasDataReceived?.Invoke(JSONConvert.getCoordinates(payload), JSONConvert.getCanvasDrawingColor(payload));
-                            
                             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;
+                case JSONConvert.GAME:
+                    switch (JSONConvert.GetGameCommand(payload))
+                    {
+                        case JSONConvert.GameCommand.TIMER_ELAPSED:
+                            int lobbyElapsedID = JSONConvert.GetLobbyID(payload);
+                            
+                            //todo set next round
+                            break;
+
+                        case JSONConvert.GameCommand.INITIALIZE:
+                            int lobbyID = JSONConvert.GetLobbyID(payload);
+                            string userName = JSONConvert.GetUsernameLogin(payload);
+                            if (lobbyID == clientData.Lobby.ID)
+                            {
+                                if (userName == clientData.User.Username)
+                                {
+                                    clientData.User.TurnToDraw = true;
+                                    Debug.WriteLine("[CLIENT] Setting a player's turnToDraw to true");
+                                }
+                                clientData.Client.UpdateUserScores?.Invoke(clientData.Lobby);
+
+                            }
+
+                            
+                            break;
+                        
+                    }
+                    break;
             }
             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");

Client/ViewModels/ViewModel.cs

@@ -121,13 +121,18 @@ namespace Client
 
                 _lobbies.Clear();
 
+                Lobby clientLobby = ClientData.Instance.Lobby;
                 foreach (Lobby l in lobbiesArr)
                 {
                     _lobbies.Add(l);
-                    Lobby clientLobby = ClientData.Instance.Lobby;
                     if (l.ID == clientLobby?.ID)
                     {
-                        clientLobby = l;
+                        clientLobby.Users.Clear();
+
+                        foreach (User user in l.Users)
+                        {
+                            clientLobby.Users.Add(user);
+                        }
                     }
                 }
 

Client/ViewModels/ViewModelGame.cs

@@ -27,6 +27,8 @@ namespace Client.ViewModels
         public Queue<double[][]> linesQueue;
         private Timer queueTimer;
 
+        private bool wordGuessed = false;
+
         public static ObservableCollection<string> Messages { get; } = new ObservableCollection<string>();
         public ObservableCollection<string> Players { get; } = new ObservableCollection<string>();
 
@@ -50,7 +52,23 @@ namespace Client.ViewModels
         private string _randomWord;
         public string RandomWord
         {
-            get { return _randomWord; }
+            get {
+                if (data.User.TurnToDraw)
+                    return _randomWord;
+
+                if (!wordGuessed)
+                {
+                    string hiddenWord = "";
+                    for (int i = 0; i < _randomWord.Length; i++)
+                    {
+                        hiddenWord += "_ ";
+                    }
+                    return hiddenWord;
+                }
+                else
+                    return _randomWord;
+            }
+
             set { _randomWord = value; }
         }
 
@@ -59,10 +77,15 @@ namespace Client.ViewModels
             get { return data.User.Host; }
         }
 
+        public bool UserTurnToDraw
+        {
+            get { return data.User.TurnToDraw; }
+        }
+
         public ViewModelGame(GameWindow window)
         {
             this.window = window;
-
+            _randomWord = "";
             buffer = new double[maxLines][];
             linesQueue = new Queue<double[][]>();
             OnKeyDown = new RelayCommand(ChatBox_KeyDown);
@@ -144,7 +167,9 @@ namespace Client.ViewModels
 
         public void Canvas_MouseUp(object sender, MouseButtonEventArgs e)
         {
+           
                 sendArrayFromQueue(sender, null);
+
         }
 
         private void sendArrayFromQueue(object sender, ElapsedEventArgs e)
@@ -238,7 +263,7 @@ namespace Client.ViewModels
                 Players.Clear();
                 foreach (var item in lobby.Users)
                 {
-                    Players.Add(item.Username + "\n" + item.Score);
+                    Players.Add(item.Username + "\n" + item.Score + "\n" + item.TurnToDraw);
                 }
             });
         }

Client/Views/LoginScreen.xaml.cs

@@ -20,8 +20,10 @@ namespace Client.Views
     public partial class LoginScreen : Window
     {
         ClientData data = ClientData.Instance;
+        private LoginViewModel loginViewModel;
         public LoginScreen()
         {
+            loginViewModel = new LoginViewModel(this);
             InitializeComponent();
         }
 
@@ -29,22 +31,8 @@ namespace Client.Views
         {
             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
-                Application.Current.Dispatcher.Invoke(delegate {
-                    data.User = user;
-                    data.Client = client;
-                    client.SendMessage(JSONConvert.ConstructLobbyRequestMessage());
-                    MainWindow startWindow = new MainWindow();
-                    startWindow.Show();
-                    this.Close();
-                });
-            };
+            loginViewModel.UsernameEntered(name);
 
             
         }

Server/Models/ServerClient.cs

@@ -11,6 +11,7 @@ using System.Net.Sockets;
 using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
+using System.Timers;
 using static SharedClientServer.JSONConvert;
 
 namespace Server.Models
@@ -22,7 +23,9 @@ 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;
+        private Dictionary<System.Timers.Timer, int> lobbyTimers;
         public User User { get; set; }
         private ServerCommunication serverCom = ServerCommunication.INSTANCE;
         private Callback OnMessageReceivedOk;
@@ -34,6 +37,7 @@ namespace Server.Models
         /// <param name="client">the TcpClient object to use</param>
         public ServerClient(TcpClient client)
         {
+            lobbyTimers = new Dictionary<System.Timers.Timer, int>();
             Debug.WriteLine("[SERVERCLIENT] making new instance and starting");
             tcpClient = client;
             stream = tcpClient.GetStream();
@@ -145,6 +149,11 @@ 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;
@@ -167,7 +176,7 @@ namespace Server.Models
                                 coords = JSONConvert.getCoordinates(payload),
                                 color = JSONConvert.getCanvasDrawingColor(payload)
                             };
-                            serverCom.SendToLobby(serverCom.GetLobbyForUser(User),JSONConvert.GetMessageToSend(JSONConvert.CANVAS,canvasData));
+                            serverCom.SendCanvasDataToLobby(serverCom.GetLobbyForUser(User),User.Username,JSONConvert.GetMessageToSend(JSONConvert.CANVAS,canvasData));
                             break;
 
                         case JSONConvert.CANVAS_RESET:
@@ -186,13 +195,36 @@ namespace Server.Models
 
                 case JSONConvert.GAME:
                     Debug.WriteLine("[SERVERCLIENT] Got a message about the game logic");
-                    string command = JSONConvert.GetGameCommand(payload);
+                    GameCommand command = JSONConvert.GetGameCommand(payload);
                     switch (command)
                     {
-                        case "startGame":
+                        case GameCommand.START_GAME:
                             int lobbyID = JSONConvert.GetStartGameLobbyID(payload);
                             serverCom.CloseALobby(lobbyID);
+                            //todo start a timer for this lobby
+                            Debug.WriteLine("[SERVERCLIENT] making timer for lobby " + lobbyID);
+                            System.Timers.Timer lobbyTimer = new System.Timers.Timer(60 * 1000);
+                            this.lobbyTimers.Add(lobbyTimer, lobbyID);
+                            lobbyTimer.Elapsed += LobbyTimer_Elapsed;
+                            lobbyTimer.Start();
                             ServerCommunication.INSTANCE.sendToAll(JSONConvert.ConstructLobbyListMessage(ServerCommunication.INSTANCE.lobbies.ToArray()));
+                            serverCom.SendToLobby(lobbyID, JSONConvert.ConstructGameInitializeData( serverCom.FindUserNameInLobby(lobbyID),lobbyID));
+                            break;
+                        case GameCommand.TIMER_ELAPSED:
+                            
+                            break;
+                        case GameCommand.NEXT_ROUND:
+                            // The next round has been started, so we can start the timer again
+
+                            lobbyID = JSONConvert.GetLobbyID(payload);
+                            foreach (System.Timers.Timer timer in lobbyTimers.Keys)
+                            {
+                                if (lobbyTimers[timer] == lobbyID)
+                                {
+                                    timer.Start();
+                                    break;
+                                }
+                            }
                             break;
                     }
 
@@ -211,6 +243,17 @@ namespace Server.Models
             }
         }
 
+        private void LobbyTimer_Elapsed(object sender, ElapsedEventArgs e)
+        {
+            System.Timers.Timer timer = sender as System.Timers.Timer;
+            int lobbyID = lobbyTimers[timer];
+            Debug.WriteLine("[SERVERCLIENT] timer elapsed for lobby " + lobbyID);
+            serverCom.SendToLobby(lobbyID, JSONConvert.ConstructGameTimerElapsedMessage(lobbyID));
+            timer.Stop();
+            
+
+        }
+
         private void handleLobbyMessage(byte[] payload, LobbyIdentifier l)
         {
             switch (l)
@@ -234,11 +277,11 @@ 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;
                     };

Server/Models/ServerCommunication.cs

@@ -142,7 +142,23 @@ namespace Server.Models
                 {
                     foreach (ServerClient sc in serverClientsInlobbies[l])
                     {
-                        Debug.WriteLine("[SERVERCLIENT] Sending message");
+                        Debug.WriteLine("[SERVERCLIENT] Sending message to lobby");
+                        sc.sendMessage(message);
+                    }
+                    break;
+                }
+            }
+        }
+
+        public void SendToLobby(int lobbyID, byte[] message)
+        {
+            foreach (Lobby l in lobbies)
+            {
+                if (l.ID == lobbyID)
+                {
+                    foreach (ServerClient sc in serverClientsInlobbies[l])
+                    {
+                        Debug.WriteLine("[SERVERCLIENT] Sending message to lobby");
                         sc.sendMessage(message);
                     }
                     break;
@@ -158,6 +174,7 @@ namespace Server.Models
                 {
                     foreach (ServerClient sc in serverClientsInlobbies[l])
                     {
+                        if (sc.User.Username != username)
                             sc.sendMessage(message);
                     }
                     break;
@@ -261,6 +278,10 @@ namespace Server.Models
                                     break;
                                 }
                             }
+                            if (l.Users.Count != 0)
+                            {
+                                l.Users[0].Host = true;
+                            }
                             break;
                         }
                     }
@@ -278,8 +299,24 @@ namespace Server.Models
                 if (lobby.ID == lobbyID)
                 {
                     lobby.LobbyJoinable = false;
+                    break;
                 }
             }
         }
+
+        public string FindUserNameInLobby(int lobbyID)
+        {
+            Lobby lobbyFound = null;
+            foreach (Lobby lobby in lobbies)
+            {
+                if (lobby.ID == lobbyID)
+                {
+                    lobbyFound = lobby;
+                    break;
+                }
+            }
+
+            return lobbyFound?.Users[lobbyFound.UserDrawing]?.Username;
+        }
     }
 }

SharedClientServer/JSONConvert.cs

@@ -35,6 +35,14 @@ namespace SharedClientServer
             REQUEST
         }
 
+        public enum GameCommand
+        {
+            START_GAME,
+            INITIALIZE,
+            TIMER_ELAPSED,
+            NEXT_ROUND
+        }
+
         public static (string,string) GetUsernameAndMessage(byte[] json)
         {
             string msg = Encoding.UTF8.GetString(json);
@@ -205,15 +213,35 @@ namespace SharedClientServer
 
         public static byte[] ConstructGameStartData(int lobbyID)
         {
-            string startGame = "startGame";
+            
             return GetMessageToSend(GAME, new
             {
-                command = startGame,
+                command = GameCommand.START_GAME,
                 lobbyToStart = lobbyID
             }); ;
         }
 
-        public static string GetGameCommand(byte[] payload)
+        public static byte[] ConstructGameInitializeData(string userName, int lobbyID)
+        {
+            dynamic payload = new
+            {
+                id = lobbyID,
+                command = GameCommand.INITIALIZE,
+                username = userName
+            };
+            return GetMessageToSend(GAME, payload);
+        }
+
+        public static byte[] ConstructGameTimerElapsedMessage(int lobbyID)
+        {
+            return GetMessageToSend(GAME, new
+            {
+                command = GameCommand.TIMER_ELAPSED,
+                id = lobbyID
+            });
+        }
+
+        public static GameCommand GetGameCommand(byte[] payload)
         {
             dynamic json = JsonConvert.DeserializeObject(Encoding.UTF8.GetString(payload));
             return json.command;

SharedClientServer/Lobby.cs

@@ -17,6 +17,7 @@ namespace Client
         private bool _lobbyJoinable;
         //private List<string> _usernames;
         private List<User> _users;
+        private int _userDrawing;
 
         //public void AddUsername(string username, out bool success)
         //{
@@ -36,6 +37,7 @@ namespace Client
             //_usernames = new List<string>();
             _users = new List<User>();
             _lobbyJoinable = true;
+            _userDrawing = 0;
         }
 
         public void AddUser(string username, out bool succes)
@@ -95,5 +97,11 @@ namespace Client
             set { _lobbyJoinable = value; }
         }
 
+        public int UserDrawing
+        {
+            get { return _userDrawing; }
+            set { _userDrawing = value; }
+        }
+
     }
 }

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; }
+        }
     }
 }