+
+ (container-commands
+ #:init-value (wrap %room-contain-commands))
+
+ (actions #:allocation #:each-subclass
+ #:init-value
+ (build-actions
+ (cmd-go room-cmd-go)
+ (cmd-go-where room-cmd-go-where)
+ (announce-entrance room-announce-entrance)
+ (look-room room-look-room)
+ (tell-room room-act-tell-room)
+ ;; in this case the command is the same version as the normal
+ ;; look-room version
+ (cmd-look-room room-look-room)
+ (cmd-look-at room-look-at)
+ (cmd-say room-cmd-say)
+ (cmd-emote room-cmd-emote))))
+
+(define* (room-cmd-go room message #:key direct-obj)
+ (define exit
+ (find
+ (lambda (exit)
+ (equal? (exit-name exit) direct-obj))
+ (room-exits room)))
+ (define to-address (if exit
+ ;; Get the exit, but resolve it dynamically
+ ;; in case it's a special
+ (dyn-ref room (slot-ref exit 'to))
+ #f))
+ (define player-name
+ (msg-val (<-wait room (message-from message) 'get-name)))
+ (cond
+ (exit
+ ;; Set the player's new location
+ (<-wait room (message-from message) 'set-loc!
+ #:loc to-address)
+ ;; Tell everyone else the person walked away
+ (room-tell-room
+ room
+ (format #f "~a wanders ~a.\n"
+ player-name direct-obj))
+ (<- room to-address 'announce-entrance
+ #:who-entered (message-from message))
+ ;; Have the new room update the player to the new location
+ (<- room to-address 'look-room
+ #:to-id (message-from message)))
+ (else
+ (<- room (message-from message) 'tell
+ #:text "You don't see any way to go there.\n"))))
+
+(define (room-cmd-go-where room message)
+ (<- room (message-from message) 'tell
+ #:text "Go where?\n"))
+
+;;; look commands
+
+(define (list-words-as-string words)
+ "A little utility for listing a bunch of words in an English-style list"
+ ;; TODO: This could be made faster by traversing the O(n)
+ ;; list once, not twice
+ (let ((word-length (length words)))
+ (cond
+ ((eqv? word-length 0) "")
+ ((eqv? word-length 1) (car words))
+ (else
+ ;; TODO: and this is NOT efficient
+ (string-append
+ (string-join
+ (drop-right words 1)
+ ", ")
+ " and "
+ (last words))))))
+
+(define (room-player-looks-around room player-id)
+ "Handle looking around the room"
+ ;; Get the room text
+ (define room-text
+ (format #f "**~a**\n~a\n"
+ (slot-ref room 'name)
+ (slot-ref room 'desc)))
+
+ ;; Get a list of other things the player would see in the room
+ (define occupant-names-all
+ (map
+ (lambda (occupant)
+ (call-with-message (<-wait room occupant 'visible-name
+ #:whos-looking player-id)
+ (lambda* (_ #:key text)
+ text)))
+ (remove
+ (lambda (x) (equal? x player-id))
+ (hash-map->list (lambda (x _) x)
+ (slot-ref room 'occupants)))))
+
+ ;; Strip out the #f responses (these aren't listed because they lack a name
+ ;; or they aren't "obviously visible" to the player)
+ (define occupant-names-filtered
+ (filter identity occupant-names-all))
+
+ (define occupant-names-string
+ (if (eq? occupant-names-filtered '())
+ #f
+ (format #f "You see here: ~a.\n"
+ (list-words-as-string occupant-names-filtered))))
+
+ (define final-text
+ (if occupant-names-string
+ (string-append room-text occupant-names-string)
+ room-text))
+
+ (<- room player-id 'tell
+ #:text final-text))
+
+
+(define* (room-look-room room message
+ ;; Either send it to the #:to-id of the message,
+ ;; or to the sender of the message
+ #:key (to-id (message-from message)))
+ "Command: Player asks to look around the room"
+ (room-player-looks-around room to-id))
+
+(define (room-find-thing-called room called-this)
+ "Find something called CALLED-THIS in the room, if any."
+ (call/ec
+ (lambda (return)
+ (for-each
+ (lambda (occupant)
+ (msg-receive (_ #:key goes-by)
+ (<-wait room occupant 'goes-by)
+ (if (member called-this goes-by)
+ (return occupant))))
+ (hash-map->list (lambda (key val) key)
+ (slot-ref room 'occupants)))
+ #f)))
+
+(define %formless-desc
+ "You don't see anything special.")
+
+(define* (room-look-at room message #:key direct-obj)
+ "Look at a specific object in the room."
+ (define matching-object
+ (room-find-thing-called room direct-obj))
+
+ (cond
+ (matching-object
+ (let ((obj-desc
+ (msg-val (<-wait room matching-object 'get-desc
+ #:whos-looking (message-from message)))))
+ (if obj-desc
+ (<- room (message-from message) 'tell
+ #:text (string-append obj-desc "\n"))
+ (<- room (message-from message) 'tell
+ #:text (string-append %formless-desc "\n")))))
+ (else
+ (<- room (message-from message) 'tell
+ #:text "You don't see that here, so you can't look at it.\n"))))
+
+
+(define* (room-tell-room room text #:key exclude wait)
+ (define who-to-tell (gameobj-occupants room #:exclude exclude))