Add ability to show stack visuals on closed containers (#29309)

* add ability to show stack visuals on closed containers

* remove container stack visuals logic from sharedstoragesystem

* improve comments a bit

* move logic for open/closed containers into itemcountersystem

* move behavior to storage component

* remove unused import

* remove old comment

* fix comments

* fix wrong property name

* Update Content.Shared/Storage/EntitySystems/SharedStorageSystem.cs

* Rename variable for clarity

---------

Co-authored-by: ShadowCommander <10494922+ShadowCommander@users.noreply.github.com>

Content.Shared/Storage/Components/ItemCounterComponent.cs

@@ -1,4 +1,4 @@
-using Content.Shared.Storage.EntitySystems;
+using Content.Shared.Storage.EntitySystems;
 using Content.Shared.Whitelist;
 
 namespace Content.Shared.Storage.Components

Content.Shared/Storage/EntitySystems/SharedStorageSystem.cs

@@ -806,6 +806,10 @@ public abstract class SharedStorageSystem : EntitySystem
         _appearance.SetData(uid, StorageVisuals.Capacity, capacity, appearance);
         _appearance.SetData(uid, StorageVisuals.Open, isOpen, appearance);
         _appearance.SetData(uid, SharedBagOpenVisuals.BagState, isOpen ? SharedBagState.Open : SharedBagState.Closed, appearance);
+
+        // HideClosedStackVisuals true sets the StackVisuals.Hide to the open state of the storage.
+        // This is for containers that only show their contents when open. (e.g. donut boxes)
+        if (storage.HideStackVisualsWhenClosed)
             _appearance.SetData(uid, StackVisuals.Hide, !isOpen, appearance);
     }
 

Content.Shared/Storage/StorageComponent.cs

@@ -123,6 +123,14 @@ namespace Content.Shared.Storage
         [DataField, ViewVariables(VVAccess.ReadWrite)]
         public StorageDefaultOrientation? DefaultStorageOrientation;
 
+        /// <summary>
+        /// If true, sets StackVisuals.Hide to true when the container is closed
+        /// Used in cases where there are sprites that are shown when the container is open but not
+        /// when it is closed
+        /// </summary>
+        [DataField]
+        public bool HideStackVisualsWhenClosed = true;
+
         [Serializable, NetSerializable]
         public enum StorageUiKey : byte
         {

Resources/Prototypes/Entities/Objects/Consumable/Drinks/drinks_cans.yml

@@ -432,6 +432,7 @@
     whitelist:
       tags:
         - Cola
+    hideStackVisualsWhenClosed: false
   - type: StorageFill
     contents:
       - id: DrinkColaCan