Changed save file handling

Warnings are pushed when save can't be deserialized or found.
Losing battle deletes save.

Author: LifeHckr

Globals/StageProducer.cs

@@ -61,9 +61,7 @@ public bool LoadGame()
         SaveSystem.SaveFile sv = SaveSystem.LoadGame();
         if (sv == null)
         {
-            GD.PushError(
-                "StageProducer.LoadGame(): Can't load game, either file 404 or invalid file."
-            );
+            GD.PushWarning("Can't load game, either file 404 or invalid file.");
             return false;
         }
         GlobalRng.Seed = sv.RngSeed;
@@ -144,7 +142,7 @@ public void TransitionStage(Stages nextStage, int nextRoomIdx = -1)
                 GetTree().Quit();
                 return;
             default:
-                GD.Print($"Error Scene Transition is {nextStage}");
+                GD.PushError($"Error Scene Transition is {nextStage}");
                 break;
         }
 

SaveData/SaveSystem.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
@@ -202,9 +203,23 @@ public static SaveFile LoadGame()
         GD.Print(json);
 
         file.Close();
-        SaveFile sv = JsonSerializer.Deserialize<SaveFile>(json);
+        SaveFile sv;
+        try
+        {
+            sv = JsonSerializer.Deserialize<SaveFile>(json);
+        }
+        catch (JsonException)
+        {
+            GD.PushWarning("Cannot deserialize save file, returning null.");
+            return null;
+        }
         return sv;
     }
 
+    public static void ClearSave()
+    {
+        DirAccess.RemoveAbsolute(UserSavePath);
+    }
+
     #endregion
 }

scenes/BattleDirector/scripts/BattleDirector.cs

@@ -224,6 +224,7 @@ private void BattleWon()
     private void BattleLost()
     {
         Audio.StreamPaused = true;
+        SaveSystem.ClearSave();
         AddChild(GD.Load<PackedScene>("res://scenes/UI/EndScreen.tscn").Instantiate());
         GetTree().Paused = true;
     }