Cursed Mask (#29659)

* Cursed Mask

* extra expressions

* block ingestion

* mind returning

* okay fix the removal shit

Content.Shared/Inventory/SelfEquipOnlySystem.cs

@@ -0,0 +1,45 @@
+using Content.Shared.ActionBlocker;
+using Content.Shared.Clothing.Components;
+using Content.Shared.Inventory.Events;
+
+namespace Content.Shared.Inventory;
+
+public sealed class SelfEquipOnlySystem : EntitySystem
+{
+    [Dependency] private readonly ActionBlockerSystem _actionBlocker = default!;
+
+    /// <inheritdoc/>
+    public override void Initialize()
+    {
+        SubscribeLocalEvent<SelfEquipOnlyComponent, BeingEquippedAttemptEvent>(OnBeingEquipped);
+        SubscribeLocalEvent<SelfEquipOnlyComponent, BeingUnequippedAttemptEvent>(OnBeingUnequipped);
+    }
+
+    private void OnBeingEquipped(Entity<SelfEquipOnlyComponent> ent, ref BeingEquippedAttemptEvent args)
+    {
+        if (args.Cancelled)
+            return;
+
+        if (TryComp<ClothingComponent>(ent, out var clothing) && (clothing.Slots & args.SlotFlags) == SlotFlags.NONE)
+            return;
+
+        if (args.Equipee != args.EquipTarget)
+            args.Cancel();
+    }
+
+    private void OnBeingUnequipped(Entity<SelfEquipOnlyComponent> ent, ref BeingUnequippedAttemptEvent args)
+    {
+        if (args.Cancelled)
+            return;
+
+        if (args.Unequipee == args.UnEquipTarget)
+            return;
+
+        if (TryComp<ClothingComponent>(ent, out var clothing) && (clothing.Slots & args.SlotFlags) == SlotFlags.NONE)
+            return;
+
+        if (ent.Comp.UnequipRequireConscious && !_actionBlocker.CanConsciouslyPerformAction(args.UnEquipTarget))
+            return;
+        args.Cancel();
+    }
+}