Embassy Assault

You are one of our country's best agents and have been given the task
of acquiring some top secret codes from the strong room of a foreign
Embassy.

Unfortunately the detailed layout of the Embassy is unknown. But you
do know:

- it is a four storey building (although not all floors may be
accessible).

- it is laid out geometrically with each floor being 35 metres
square. As you progress you move 5 metres at a time.

You have just entered the Embassy on the ground floor (floor 1)
through the only entrance somewhere on the south side of the
building. The TV displays the full perspective view you have from this
point. You are facing north and are equipped with a compass (which is
displayed at the bottom of the screen).

You must now attempt to find the coderoom, go into it to find the
codes and leave the Embassy again through the door by which you
entered. You must do this as quickly as possible.

Level of Difficulty

You are asked at the start of the game to type in a number between 1
and 9 to indicate a level of difficulty of Embassy layout. Level 1 is
the easiest; level 9 is the most difficult.

Movement

You move by pressing the cursor control keys as follows:

Key 5 turn left (and move)
Key 6 turn around
Key 7 move forwards
Key 8 turn right (and move)

"Move forward" moves you forward 5 metres unless there is a wall in
front of you.
"Turn around" turns you through a half-circle but you do not move.
"Turn left/right (and move)" turns you left/right by a quarter
circle. You then move unless there is a wall, a staircase or a door
straight ahead.
You may only ascend or descend stairs or go through doors by moving
forwards.