Chameleon clothing (#8444)

Co-authored-by: Moony <moonheart08@users.noreply.github.com>
Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>

Content.Shared/Item/ItemComponent.cs

@@ -18,6 +18,7 @@ public sealed class ItemComponent : Component
     [Access(typeof(SharedItemSystem), Other = AccessPermissions.ReadExecute)]
     public int Size = 5;
 
+    [Access(typeof(SharedItemSystem))]
     [DataField("inhandVisuals")]
     public Dictionary<HandLocation, List<SharedSpriteComponent.PrototypeLayerData>> InhandVisuals = new();
 
@@ -29,9 +30,10 @@ public sealed class ItemComponent : Component
     /// <summary>
     ///     Rsi of the sprite shown on the player when this item is in their hands. Used to generate a default entry for <see cref="InhandVisuals"/>
     /// </summary>
+    [Access(typeof(SharedItemSystem))]
     [ViewVariables(VVAccess.ReadWrite)]
     [DataField("sprite")]
-    public readonly string? RsiPath;
+    public string? RsiPath;
 }
 
 [Serializable, NetSerializable]

Content.Shared/Item/SharedItemSystem.cs

@@ -49,6 +49,22 @@ public abstract class SharedItemSystem : EntitySystem
         VisualsChanged(uid);
     }
 
+    /// <summary>
+    ///     Copy all item specific visuals from another item.
+    /// </summary>
+    public void CopyVisuals(EntityUid uid, ItemComponent otherItem, ItemComponent? item = null)
+    {
+        if (!Resolve(uid, ref item))
+            return;
+
+        item.RsiPath = otherItem.RsiPath;
+        item.InhandVisuals = otherItem.InhandVisuals;
+        item.HeldPrefix = otherItem.HeldPrefix;
+
+        Dirty(item);
+        VisualsChanged(uid);
+    }
+
     #endregion
 
     private void OnHandInteract(EntityUid uid, ItemComponent component, InteractHandEvent args)