Fixed Persistence exception with unreadable EOF

Qwirkle/QwirkleClassLibrary/Games/Game.cs

@@ -384,6 +384,12 @@ namespace QwirkleClassLibrary.Games
         /// <returns>bool</returns>
         public bool SwapTiles(Player player, List<Tile> tilesToSwap)
         {
+            if (cellUsed.Count != 0)
+            {
+                OnSwapTiles(new SwapTilesNotifiedEventArgs("You can't swap tiles after placing some !"));
+                return false;
+            }
+            
             if (tilesToSwap.Count == 0)
             {
                 OnSwapTiles(new SwapTilesNotifiedEventArgs("You must select at least one tile to swap !"));

Qwirkle/QwirkleClassLibrary/Persistences/GamePersistenceXml.cs

@@ -20,9 +20,17 @@ public class GamePersistenceXml : IGamePersistence
     {
         var serializer = new DataContractSerializer(typeof(Game));
 
-        using (Stream reader = File.OpenRead("Game.xml"))
+        try
         {
-            return serializer.ReadObject(reader) as Game ?? throw new InvalidOperationException();
+            using (Stream reader = File.OpenRead("Game.xml"))
+            {
+                var newGame = serializer.ReadObject(reader) as Game;
+                return newGame!;
+            }
+        }
+        catch
+        {
+            return new Game();
         }
     }
 }

Qwirkle/QwirkleConsoleApp/Program.cs

@@ -1,17 +1,9 @@
 using QwirkleClassLibrary.Boards;
-using QwirkleClassLibrary.Events;
 using QwirkleClassLibrary.Games;
 using QwirkleClassLibrary.Players;
 using QwirkleClassLibrary.Tiles;
 using QwirkleConsoleApp;
-using System.Collections.Immutable;
-using System.Collections.ObjectModel;
-using System.Diagnostics.Metrics;
-using System.Net.Quic;
-using System.Runtime.Serialization;
-using System.Runtime.Serialization.Json;
 using System.Text;
-using System.Transactions;
 using QwirkleClassLibrary.Persistences;
 using static System.Console;
 
@@ -423,12 +415,33 @@ static void MainGame()
                 Game loadedGame;
                 
                 IGamePersistence gameLoad = new GamePersistenceXml();
-                loadedGame = gameLoad.LoadGame();
+
+                try
+                {
+                    loadedGame = gameLoad.LoadGame();
+                }
+                catch
+                {
+                    ForegroundColor = ConsoleColor.Red;
+                    WriteLine("ERROR : No game saved ! Creating a new game !");
+                    ResetColor();
+                    loadedGame = new Game();
+                }
 
                 ILeaderboardPersistence leaderboardLoad = new LeaderboardPersistenceJson();
                 leaderboard = leaderboardLoad.LoadLeaderboard();
-                
+
-                MainMenuContinue(loadedGame);
+                if (loadedGame.GameRunning)
+                {
+                    MainMenuContinue(loadedGame);
+                }
+                else
+                {
+                    AddPlayers(loadedGame);
+                    loadedGame.StartGame();
+                    MainMenu(loadedGame);
+                }
+
                 leaderboard.AddScoreInLead(loadedGame.ScoreBoard);
                 
                 break;