✨ added saving and loading support to collectable inventory items

prefabs/interactions/generic_item_on_ground_2d.tscn

@@ -34,6 +34,7 @@ stream_3/stream = ExtResource("9_dltn0")
 z_index = 1
 y_sort_enabled = true
 script = ExtResource("1_tlhp6")
+metadata/SaveID = ""
 
 [node name="SpawnWithItem" type="Node" parent="."]
 script = ExtResource("3_xu8me")

scenes/Babushka_scene_farm_outside_2d.tscn

@@ -1069,6 +1069,7 @@ shape = SubResource("CircleShape2D_p6n74")
 
 [node name="CanGenericPickup" parent="YSorted" instance=ExtResource("25_hukxv")]
 position = Vector2(8192, 3507)
+metadata/SaveID = "5a823507-8107-40ce-8b32-6d0f81a3c44e"
 
 [node name="SpawnWithItem" parent="YSorted/CanGenericPickup" index="0"]
 _blueprint = ExtResource("28_ipqaa")
@@ -1086,6 +1087,7 @@ offset = Vector2(0, -50)
 
 [node name="RakeGenericPickup" parent="YSorted" instance=ExtResource("25_hukxv")]
 position = Vector2(8391, 2060)
+metadata/SaveID = "e13886b1-2131-4072-bc06-7d8abb19357b"
 
 [node name="SpawnWithItem" parent="YSorted/RakeGenericPickup" index="0"]
 _blueprint = ExtResource("28_6b2nr")
@@ -1100,15 +1102,13 @@ shape = SubResource("CircleShape2D_tm0yg")
 
 [node name="SeedPickup" parent="YSorted" instance=ExtResource("25_hukxv")]
 position = Vector2(9927, 2257)
-_infiniteSupply = true
 _finiteSupply = 3
+metadata/SaveID = "e1bbe13f-0622-42b8-97f3-87a8af369dc0"
 
 [node name="SpawnWithItem" parent="YSorted/SeedPickup" index="0"]
 _blueprint = ExtResource("35_64mdn")
 
-[node name="PickupInteractionArea" parent="YSorted/SeedPickup" index="3" node_paths=PackedStringArray("_spritesToOutline")]
-_outlineMaterial = null
-_spritesToOutline = []
+[node name="PickupInteractionArea" parent="YSorted/SeedPickup" index="3"]
 metadata/SaveID = "ad152c51-3631-42c1-9aa4-4df896b35d8c"
 
 [node name="CollisionShape3D" parent="YSorted/SeedPickup/PickupInteractionArea/Area2D" index="0"]
@@ -1120,13 +1120,12 @@ scale = Vector2(1, 1)
 [node name="SeedPickup2" parent="YSorted" instance=ExtResource("25_hukxv")]
 position = Vector2(10705, 2257)
 _finiteSupply = 3
+metadata/SaveID = "77972c50-63a7-461a-bc7d-6fa46333bc5c"
 
 [node name="SpawnWithItem" parent="YSorted/SeedPickup2" index="0"]
 _blueprint = ExtResource("36_fv1t2")
 
-[node name="PickupInteractionArea" parent="YSorted/SeedPickup2" index="3" node_paths=PackedStringArray("_spritesToOutline")]
-_outlineMaterial = null
-_spritesToOutline = []
+[node name="PickupInteractionArea" parent="YSorted/SeedPickup2" index="3"]
 metadata/SaveID = "09e115e7-1d21-485a-be3e-b3fff9c83e78"
 
 [node name="CollisionShape3D" parent="YSorted/SeedPickup2/PickupInteractionArea/Area2D" index="0"]

scripts/CSharp/Common/Inventory/ItemOnGround2D.cs

@@ -63,6 +63,8 @@ public partial class ItemOnGround2D : Node, ISaveable
             {
                 QueueFree();
             }
+
+            UpdateSaveData();
         }
     }
 
@@ -92,7 +94,14 @@ public partial class ItemOnGround2D : Node, ISaveable
 
     public void UpdateSaveData()
     {
-        // do nothing?
+        var payloadData = new Dictionary<string, Variant>
+        {
+            {"pickupCounter",  pickUpCounter}
+        };
+        
+        string id = GetMeta("SaveID").AsString();
+        GD.Print($"Updating Save ID for object {Name}: {id}");
+        SavegameService.AppendDataToSave( id, payloadData);
     }
 
     public void LoadFromSaveData()
@@ -100,6 +109,26 @@ public partial class ItemOnGround2D : Node, ISaveable
         if (_infiniteSupply)
             return;
         
+        // standard check: how many times has this item been collected?
+        string id = GetMeta("SaveID").AsString(); 
+        GD.Print($"Loading Save ID for object {Name}: " + id);
+        
+        Dictionary<string, Variant> save = SavegameService.GetSaveData(id);
+        if (save.Count > 0)
+        {
+            if(save.TryGetValue("pickupCounter", out Variant countVar))
+            {
+                int count = countVar.AsInt32();
+                GD.Print($"Item count for {Name}: {count}");
+                for (int i = 0; i < count; i++)
+                {
+                    Pickup();
+                    GD.Print($"Picking up {Name}: {i}");
+                }
+            }
+        }
+        
+        //separate check for unique items: If already in inventory, delete this instance.
         ItemResource itemResource = itemInstance.blueprint;
         Dictionary<string, Variant> savegameData = SavegameService.GetSaveData(InventoryInstance.ID);
         if (savegameData.Count > 0)
@@ -121,7 +150,6 @@ public partial class ItemOnGround2D : Node, ISaveable
                         }
                     }
                 }
-                
             }
         }
     }