- locationrecord
Location-records describing the status (e.g. clean, dirty) of the square and its neighbors at `left', `right', `down', `up'.
`neighbors' is a ternary vector indexed by relative directions.
(define-record location status neighbors)
Location-records describing the status (e.g. clean, dirty) of the square and its neighbors at `left', `right', `down', `up'.
`neighbors' is a ternary vector indexed by relative directions.
(define-record location status neighbors)