[ADD] added joining lobbies

Client/Client.cs

@@ -21,6 +21,7 @@ namespace Client
         private string username;
         public Callback OnSuccessfullConnect;
         public Callback OnLobbiesListReceived;
+        public Callback OnLobbyJoinSuccess;
         public OnLobbyCreated OnLobbyCreated;
         public Lobby[] Lobbies { get; set; }
 
@@ -107,7 +108,9 @@ namespace Client
                             Debug.WriteLine("[CLIENT] got lobby object");
                             Lobby lobby = JSONConvert.GetLobby(payload);
                             OnLobbyCreated?.Invoke(lobby.ID,lobby.PlayersIn,lobby.MaxPlayers);
-
+                            break;
+                        case LobbyIdentifier.JOIN_SUCCESS:
+                            OnLobbyJoinSuccess?.Invoke();
                             break;
                     }
                     //TODO fill lobby with the data received

Client/ViewModels/ViewModel.cs

@@ -34,7 +34,7 @@ namespace Client
 
             OnHostButtonClick = new RelayCommand(hostGame);
 
-            JoinSelectedLobby = new RelayCommand(startGameInLobby, true);
+            JoinSelectedLobby = new RelayCommand(joinLobby, true);
         }
 
         private void hostGame()
@@ -57,6 +57,17 @@ namespace Client
             });
         }
 
+        private void joinLobby()
+        {
+            client.OnLobbyJoinSuccess = OnLobbyJoinSuccess;
+            client.SendMessage(JSONConvert.ConstructLobbyJoinMessage(SelectedLobby.ID));
+        }
+
+        private void OnLobbyJoinSuccess()
+        {
+            startGameInLobby();
+        }
+
 
 
         private void updateLobbies()
@@ -85,8 +96,11 @@ namespace Client
         private void startGameWindow()
         {
             _model.CanStartGame = false;
-            GameWindow window = new GameWindow();
-            window.Show();
+            Application.Current.Dispatcher.Invoke(delegate
+            {
+                GameWindow window = new GameWindow();
+                window.Show();
+            });
         }
 
         private void ClickCheck()

Client/Views/GameWindow.xaml.cs

@@ -113,5 +113,10 @@ namespace Client.Views
             string user = data.User.Username; 
             SentMessage.AppendText($"{user}: {message}\n");
         }
+
+        private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
+        {
+
+        }
     }
 }

Client/Views/MainWindow.xaml.cs

@@ -33,18 +33,7 @@ namespace Client
         private void Button_Click(object sender, RoutedEventArgs e)
         {
 
-            Lobby lobbySelected = LobbyList.SelectedItem as Lobby;
-            if(lobbySelected != null)
-            {
-                testLabel.Content = lobbySelected.ID;
-                colorSelection.IsEnabled = false;
-                joinButton.IsEnabled = false;
-                hostButton.IsEnabled = false;
-
-                GameWindow window = new GameWindow();
-                window.Show();
-                Close();
-            }
+            
         }
     }
 }