The Unbuttoned Elevator Affair

Example 9

A simple elevator connecting two floors which is operated simply by walking in and out, and has no buttons or fancy doors.

This is very simple. The interior of the elevator is a single room, but which is mapped east of both of its termini. The reverse map connection, west from the elevator, can only go to a single room, and that's what determines which floor the elevator is on.

"The Unbuttoned Elevator Affair"
UNCLE Headquarters is a room. "The steel nerve-center of the free world's battle against the Technological Hierarchy for the Removal of Undesirables and the Subjugation of Humanity. Being against technology, we have only a very simple elevator to the east."
Del Floria's Tailor Shop is a room. "Only trained anti-THRUSH agents recognise the booth in the east wall as a secret elevator."
The Secret Elevator is east of UNCLE Headquarters. The Secret Elevator is east of Del Floria's Tailor Shop.
After going to the Secret Elevator:
   say "The doors automatically close, there is a rush of motion, and they open again.";
   if UNCLE Headquarters is mapped west of the Secret Elevator, now Del Floria's Tailor Shop is mapped west of the Secret Elevator;
   otherwise now UNCLE Headquarters is mapped west of the Secret Elevator;
   continue the action.
Test me with "east / west / east / west".
Test me with "east / west / east / west".
UNCLE Headquarters
The steel nerve-center of the free world's battle against the Technological Hierarchy for the Removal of Undesirables and the Subjugation of Humanity. Being against technology, we have only a very simple elevator to the east.

>(Testing.)

>[1] east
The doors automatically close, there is a rush of motion, and they open again.

Secret Elevator

>[2] west

Del Floria's Tailor Shop
Only trained anti-THRUSH agents recognise the booth in the east wall as a secret elevator.

>[3] east
The doors automatically close, there is a rush of motion, and they open again.

Secret Elevator

>[4] west

UNCLE Headquarters
The steel nerve-center of the free world's battle against the Technological Hierarchy for the Removal of Undesirables and the Subjugation of Humanity. Being against technology, we have only a very simple elevator to the east.