Savesystem rework

scripts/CSharp/Common/Savegame/ISaveable.cs.uid

@@ -0,0 +1 @@
+uid://bqapxuprxuj20

scripts/CSharp/Common/Savegame/SavegameService.cs

@@ -18,13 +18,23 @@ public static class SavegameService
     public static Dictionary<string, string> SaveDatas = new ();
     
     public static bool _loaded = false;
-    
+
+
+    public static void AppendDataToSave(string scenename, string id, Dictionary<string, Variant> payload)
+    {
+        var saveData = new SaveData();
+        
+        saveData.SceneName = scenename;
+        saveData.Id = id;
+        saveData.JsonPayload = Json.Stringify(payload, indent: "\t");
+        AppendSave(saveData);
+    }
 
     /// <summary>
     /// Adds or overwrites an entry in the SaveData dictionary.
     /// </summary>
     /// <param name="saveData"></param>
-    public static void AppendSave(SaveData saveData)
+    private static void AppendSave(SaveData saveData)
     {
         string key = string.Concat(saveData.SceneName, "_", saveData.Id);
 
@@ -46,21 +56,23 @@ public static class SavegameService
     /// <param name="sceneName"></param>
     /// <param name="id"></param>
     /// <returns></returns>
-    public static string GetSaveData(string sceneName, string id)
+    public static Dictionary<string, Variant> GetSaveData(string sceneName, string id)
     {
-        string saveData = "";
+        Dictionary<string, Variant> saveData = new();
         
         string key = string.Concat(sceneName, "_", id);
+        string saveDataString = "";
         
         if (!_loaded)
         {
             GD.Print("SavegameService: SaveFile not loaded.");
             return saveData;
         }
-        
+
         if (SaveDatas.ContainsKey(key))
         {
-            saveData = SaveDatas[key];
+            saveDataString = SaveDatas[key];
+            saveData = Json.ParseString(saveDataString).AsGodotDictionary<string, Variant>();
         }
 
         return saveData;