Broke ExitCommand out for easier override.

evennia/objects/objects.py

@@ -1441,38 +1441,10 @@ class DefaultRoom(DefaultObject):
 
 
 #
-# Base Exit object
+# Default Exit command, used by the base exit object
 #
 
-class DefaultExit(DefaultObject):
-    """
-    This is the base exit object - it connects a location to another.
-    This is done by the exit assigning a "command" on itself with the
-    same name as the exit object (to do this we need to remember to
-    re-create the command when the object is cached since it must be
-    created dynamically depending on what the exit is called). This
-    command (which has a high priority) will thus allow us to traverse
-    exits simply by giving the exit-object's name on its own.
-
-    """
-
-    # Helper classes and methods to implement the Exit. These need not
-    # be overloaded unless one want to change the foundation for how
-    # Exits work. See the end of the class for hook methods to overload.
-
-    def create_exit_cmdset(self, exidbobj):
-        """
-        Helper function for creating an exit command set + command.
-
-        The command of this cmdset has the same name as the Exit
-        object and allows the exit to react when the player enter the
-        exit's name, triggering the movement between rooms.
-
-        Args:
-            exiddobj (Object): The DefaultExit object to base the command on.
-
-        """
-        class ExitCommand(command.Command):
+class ExitCommand(command.Command):
     """
     This is a command that simply cause the caller to traverse
     the object it is attached to.
@@ -1497,9 +1469,44 @@ class DefaultExit(DefaultObject):
                 # No shorthand error message. Call hook.
                 self.obj.at_failed_traverse(self.caller)
 
+#
+# Base Exit object
+#
+
+class DefaultExit(DefaultObject):
+    """
+    This is the base exit object - it connects a location to another.
+    This is done by the exit assigning a "command" on itself with the
+    same name as the exit object (to do this we need to remember to
+    re-create the command when the object is cached since it must be
+    created dynamically depending on what the exit is called). This
+    command (which has a high priority) will thus allow us to traverse
+    exits simply by giving the exit-object's name on its own.
+
+    """
+
+    exit_command = ExitCommand
+    priority = 101
+    # Helper classes and methods to implement the Exit. These need not
+    # be overloaded unless one want to change the foundation for how
+    # Exits work. See the end of the class for hook methods to overload.
+
+    def create_exit_cmdset(self, exidbobj):
+        """
+        Helper function for creating an exit command set + command.
+
+        The command of this cmdset has the same name as the Exit
+        object and allows the exit to react when the player enter the
+        exit's name, triggering the movement between rooms.
+
+        Args:
+            exiddobj (Object): The DefaultExit object to base the command on.
+
+        """
+
         # create an exit command. We give the properties here,
         # to always trigger metaclass preparations
-        cmd = ExitCommand(key=exidbobj.db_key.strip().lower(),
+        cmd = self.exit_command(key=exidbobj.db_key.strip().lower(),
                                 aliases=exidbobj.aliases.all(),
                                 locks=str(exidbobj.locks),
                                 auto_help=False,
@@ -1510,7 +1517,7 @@ class DefaultExit(DefaultObject):
         # create a cmdset
         exit_cmdset = cmdset.CmdSet(None)
         exit_cmdset.key = '_exitset'
-        exit_cmdset.priority = 101
+        exit_cmdset.priority = self.priority
         exit_cmdset.duplicates = True
         # add command to cmdset
         exit_cmdset.add(cmd)