🚧 WIP implementing save and load for the inventory

scripts/CSharp/Common/Inventory/InventoryInstance.cs

@@ -3,6 +3,9 @@ using System;
 using Godot;
 using System.Collections.Generic;
 using System.Linq;
+using Babushka.scripts.CSharp.Common.Farming;
+using Babushka.scripts.CSharp.Common.Savegame;
+using Godot.Collections;
 
 namespace Babushka.scripts.CSharp.Common.Inventory;
 
@@ -17,6 +20,9 @@ public partial class InventoryInstance : Node
     [Signal]
     public delegate void InventoryContentsChangedEventHandler();
 
+    private const string SCENE_NAME = "inventory";
+    private const string ID = "instace";
+
     /// <summary>
     /// The total amount of Inventoryslots in the inventory (empty and occupied).
     /// </summary>
@@ -156,4 +162,51 @@ public partial class InventoryInstance : Node
     {
         return items.All(HasItems);
     }
+    
+     #region SAVE AND LOAD
+
+    public void UpdateSaveData()
+    {
+        var saveData = new SaveData();
+        
+        saveData.SceneName = SCENE_NAME;
+        saveData.Id = ID;
+        var payloadData = new Godot.Collections.Dictionary<string, Variant>();
+
+        for (int i = 0; i < _slots.Count; i++)
+        {
+            if (!_slots[i].IsEmpty())
+            {
+                string key = i.ToString();
+                string[] value = new string[2];
+                value[0] = _slots[i].itemInstance.blueprint.ResourcePath;
+                value[1] = _slots[i].itemInstance.amount.ToString();
+                payloadData.Add(key,value);
+            }
+        }
+        
+        saveData.JsonPayload = Json.Stringify(payloadData, indent: "\t");
+        
+        SavegameService.AppendSave(saveData);
+    }
+
+    public void LoadFromSaveData()
+    {
+        var sceneName = SCENE_NAME;
+        var id = ID;
+        string jsonPayload = SavegameService.GetSaveData(sceneName, id);
+        Godot.Collections.Dictionary<string, Variant> save = Json.ParseString(jsonPayload).AsGodotDictionary<string, Variant>();
+
+        if (save.Count > 0)
+        {
+            for (int i = 0; i < _slots.Count; i++)
+            {
+                if (save.TryGetValue(i.ToString(), out Variant inventoryItem))
+                {
+                    // todo: we have the resource paths and amounts, but how do we get to ItemResources and ItemInstances?
+                }
+            }
+        }
+    }
+    #endregion
 }