Carried Entities Interact Fix (#114)

# Description

Brings over mnemo's carrying interact fix so you can pet/hug/smooch
people who are carried!
Fansana/floofstation1#393

---

# Changelog

:cl:
- fix: can now interact with carried entities!

Content.Server/Carrying/CarryingSystem.cs

@@ -162,11 +162,17 @@ private void OnMobStateChanged(EntityUid uid, CarryingComponent component, MobSt
         /// </summary>
         private void OnInteractionAttempt(EntityUid uid, BeingCarriedComponent component, InteractionAttemptEvent args)
         {
-            if (args.Target == null)
+            // Floofstation - function body reviewed
+            Predicate<TransformComponent> isChildOfCarrier = null!; // C# doesn't have local functions eugh
+            isChildOfCarrier = (childXForm) => childXForm.ParentUid == component.Carrier
+                             || (childXForm.ParentUid is { Valid: true } parent && isChildOfCarrier(Transform(parent)));
+
+            if (args.Target == null // Allow self-interacts
+                || isChildOfCarrier(Transform(args.Target.Value))) // Allow interacting with everything on the carriee
                 return;
 
+            // Also check if the interacted-with entity is on the carrier and cancel the event if not
             var targetParent = Transform(args.Target.Value).ParentUid;
-
             if (args.Target.Value != component.Carrier && targetParent != component.Carrier && targetParent != uid)
                 args.Cancel();
         }
@@ -201,8 +207,9 @@ private void OnStandAttempt(EntityUid uid, BeingCarriedComponent component, Stan
 
         private void OnInteractedWith(EntityUid uid, BeingCarriedComponent component, GettingInteractedWithAttemptEvent args)
         {
-            if (args.Uid != component.Carrier)
-                args.Cancel();
+            // Floofstation - why.
+            // if (args.Uid != component.Carrier)
+            //     args.Cancel();
         }
 
         private void OnPullAttempt(EntityUid uid, BeingCarriedComponent component, PullAttemptEvent args)