update interaction

Scripts/Interactable.gd

@@ -6,5 +6,14 @@ var can_pick: bool
 var can_store: bool
 var stored_objects: Array
 
-func action(person):
+var max_person_using
+var persons_using: Array
+
+func action(person, object):
 	print("action!")
+
+func add_person_using(person):
+	persons_using.append(person)
+
+func remove_person_using(person):
+	persons_using.erase(person)