1 ;;; Mudsync --- Live hackable MUD
2 ;;; Copyright © 2016 Christopher Allan Webber <cwebber@dustycloud.org>
4 ;;; This file is part of Mudsync.
6 ;;; Mudsync is free software; you can redistribute it and/or modify it
7 ;;; under the terms of the GNU General Public License as published by
8 ;;; the Free Software Foundation; either version 3 of the License, or
9 ;;; (at your option) any later version.
11 ;;; Mudsync is distributed in the hope that it will be useful, but
12 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
13 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 ;;; General Public License for more details.
16 ;;; You should have received a copy of the GNU General Public License
17 ;;; along with Mudsync. If not, see <http://www.gnu.org/licenses/>.
19 (define-module (mudsync room)
20 #:use-module (mudsync command)
21 #:use-module (mudsync gameobj)
22 #:use-module (8sync systems actors)
23 #:use-module (8sync agenda)
24 #:use-module (oop goops)
25 #:use-module (srfi srfi-1)
26 #:use-module (ice-9 control)
37 (define-class <exit> ()
39 (to-symbol #:init-keyword #:to-symbol)
40 ;; The actual address we use
41 (to-address #:init-keyword #:address)
42 ;; Name of the room (@@: Should this be names?)
43 (name #:getter exit-name
44 #:init-keyword #:name)
45 (desc #:init-keyword #:desc
48 ;; *Note*: These two methods have an extra layer of indirection, but
49 ;; it's for a good reason.
50 (visible-check #:init-value (const #t)
51 #:init-keyword #:visible-check)
52 ;; By default all exits can be traversed
53 (traverse-check #:init-value (const #t)
54 #:init-keyword #:traverse-check))
56 (define* (exit-can-traverse? exit actor
57 #:optional (target-actor (actor-id actor)))
58 ((slot-ref exit 'traverse-check) exit actor target-actor))
60 (define* (exit-is-visible? exit actor
61 #:optional (target-actor (actor-id actor)))
62 ((slot-ref exit 'traverse-check) exit actor target-actor))
69 (define %room-contain-commands
71 (loose-direct-command "look" 'cmd-look-at)
72 (empty-command "look" 'cmd-look-room)
73 (empty-command "go" 'cmd-go-where)
74 (loose-direct-command "go" 'cmd-go)
75 ;; (greedy-command "say" 'cmd-say)
80 ;; desc == description
81 (init (wrap-apply room-init))
82 (wire-exits! (wrap-apply room-wire-exits!))
83 (cmd-go (wrap-apply room-cmd-go))
84 (cmd-go-where (wrap-apply room-cmd-go-where))
85 (look-room (wrap-apply room-look-room))
86 ;; in this case the command is the same version as the normal
88 (cmd-look-room (wrap-apply room-look-room))
89 (cmd-look-at (wrap-apply room-look-at))))
92 (append room-actions gameobj-actions))
94 (define room-action-dispatch
95 (simple-dispatcher room-actions*))
97 ;; TODO: Subclass from container?
98 (define-class <room> (<gameobj>)
100 (exits #:init-value '()
101 #:init-keyword #:exits
105 #:init-value (wrap %room-contain-commands))
108 #:allocation #:each-subclass
109 ;; @@: Can remove this indirection once things settle
110 #:init-value (wrap-apply room-action-dispatch)))
112 (define (room-init room message)
113 (room-wire-exits! room))
115 (define (room-wire-exits! room)
116 "Actually hook up the rooms' exit addresses to the rooms they
122 (<-wait room (gameobj-gm room) 'lookup-special
123 #:symbol (slot-ref exit 'to-symbol))
126 (slot-set! exit 'to-address new-exit))
130 (define-mhandler (room-cmd-go room message direct-obj)
134 (equal? (exit-name exit) direct-obj))
138 ;; Set the player's new location
139 (<-wait room (message-from message) 'set-loc!
140 #:loc (slot-ref exit 'to-address))
141 ;; Have the new room update the player to the new location
142 (<- room (slot-ref exit 'to-address) 'look-room
143 #:to-id (message-from message)))
145 (<- room (message-from message) 'tell
146 #:text "You don't see any way to go there.\n"))))
148 (define-mhandler (room-cmd-go-where room message)
149 (<- room (message-from message) 'tell
150 #:text "Go where?\n"))
154 (define (list-words-as-string words)
155 "A little utility for listing a bunch of words in an English-style list"
156 ;; TODO: This could be made faster by traversing the O(n)
157 ;; list once, not twice
158 (let ((word-length (length words)))
160 ((eqv? word-length 0) "")
161 ((eqv? word-length 1) (car words))
163 ;; TODO: and this is NOT efficient
171 (define (room-player-looks-around room player-id)
172 "Handle looking around the room"
175 (format #f "**~a**\n~a\n"
176 (slot-ref room 'name)
177 (slot-ref room 'desc)))
179 ;; Get a list of other things the player would see in the room
180 (define occupant-names-all
184 (<-wait room occupant 'visible-name
185 #:whos-looking player-id)
188 (lambda (x) (equal? x player-id))
189 (hash-map->list (lambda (x _) x)
190 (slot-ref room 'occupants)))))
192 ;; Strip out the #f responses (these aren't listed because they lack a name
193 ;; or they aren't "obviously visible" to the player)
194 (define occupant-names-filtered
195 (filter identity occupant-names-all))
197 (define occupant-names-string
198 (if (eq? occupant-names-filtered '())
200 (format #f "You see here: ~a.\n"
201 (list-words-as-string occupant-names-filtered))))
204 (if occupant-names-string
205 (string-append room-text occupant-names-string)
208 (<- room player-id 'tell
212 (define-mhandler (room-look-room room message)
213 "Command: Player asks to look around the room"
214 (room-player-looks-around
216 ;; Either send it to the #:to-id of the message, or to the
217 ;; sender of the message
218 (message-ref message 'to-id
219 (message-from message))))
221 (define (room-find-thing-called room called-this)
222 "Find something called CALLED-THIS in the room, if any."
228 (message-ref (<-wait room occupant 'goes-by)
231 (if (member called-this goes-by)
233 (hash-map->list (lambda (key val) key)
234 (slot-ref room 'occupants)))
237 (define %formless-desc
238 "You don't see anything special about it.")
240 (define-mhandler (room-look-at room message direct-obj)
241 "Look at a specific object in the room."
242 (define matching-object
243 (room-find-thing-called room direct-obj))
249 (<-wait room matching-object 'get-desc
250 #:whos-looking (message-from message))
253 (<- room (message-from message) 'tell
254 #:text (string-append obj-desc "\n"))
255 (<- room (message-from message) 'tell
256 #:text (string-append %formless-desc "\n")))))
258 (<- room (message-from message) 'tell
259 #:text "You don't see that here, so you can't look at it.\n"))))