Add face bandanas (#24597)

* add face bandanas

* oops

* make face bandanas butcherable, also one bite

* oops

* Add mouth IdentityBlocker to bandanas

* refactor to use foldablecomponent

* remove some leftover bits

* remove HamsterWearable until face sprite updated

* oops

* review changes

* remove a few unneeded bits

Content.Shared/Clothing/EntitySystems/FoldableClothingSystem.cs

@@ -0,0 +1,42 @@
+using Content.Shared.Clothing.Components;
+using Content.Shared.Foldable;
+using Content.Shared.Inventory;
+
+namespace Content.Shared.Clothing.EntitySystems;
+
+public sealed class FoldableClothingSystem : EntitySystem
+{
+    [Dependency] private readonly ClothingSystem _clothingSystem = default!;
+    [Dependency] private readonly InventorySystem _inventorySystem = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<FoldableClothingComponent, FoldAttemptEvent>(OnFoldAttempt);
+        SubscribeLocalEvent<FoldableClothingComponent, FoldedEvent>(OnFolded);
+    }
+
+    private void OnFoldAttempt(Entity<FoldableClothingComponent> ent, ref FoldAttemptEvent args)
+    {
+        if (args.Cancelled)
+            return;
+
+        // allow folding while equipped if allowed slots are the same:
+        // e.g. flip a hat backwards while on your head
+        if (_inventorySystem.TryGetContainingSlot(ent.Owner, out var slot) &&
+            !ent.Comp.FoldedSlots.Equals(ent.Comp.UnfoldedSlots))
+            args.Cancelled = true;
+    }
+
+    private void OnFolded(Entity<FoldableClothingComponent> ent, ref FoldedEvent args)
+    {
+        if (TryComp<ClothingComponent>(ent.Owner, out var clothingComp))
+        {
+            if (args.IsFolded && ent.Comp.FoldedSlots.HasValue)
+                _clothingSystem.SetSlots(ent.Owner, ent.Comp.FoldedSlots.Value, clothingComp);
+            else if (!args.IsFolded && ent.Comp.UnfoldedSlots.HasValue)
+                _clothingSystem.SetSlots(ent.Owner, ent.Comp.UnfoldedSlots.Value, clothingComp);
+        }
+    }
+}