Allow exits to post a traversing message ...

typeclasses/exits.py

@@ -22,5 +22,11 @@ class Exit(ObjectParent, DefaultExit):
     properties and methods available on all Objects child classes like this.
 
     """
-
+    def at_traverse(self, traveler, destination):
-    pass
+        pre_check = traveler.at_pre_move(destination)
+        if pre_check:
+            if self.db.traverse_msg:
+                traveler.msg(f"\n{self.db.traverse_msg}\n")
+            return super().at_traverse(traveler, destination)
+        else:
+            return False