Tonyforster

[u,room x, room y, item, room x, .....] location of items

[u,room x, room y, item, room x, .....] location of items

[d,room x, room y, direction, locked, room x, .....] status of wall/door segments

[d,room x, room y, direction, locked, room x, .....] status of wall/door segments, unlisted segments are locked, doors can be asymmetric

[r,room x,room y,direction,item which unlocks,open text,closed text,text when opening]   

[r,room x,room y,direction,item which unlocks,open text,closed text,text when opening]