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)))
78 ;; desc == description
79 (init (wrap-apply room-init))
80 (wire-exits! (wrap-apply room-wire-exits!))
81 (cmd-go (wrap-apply room-cmd-go))
82 (cmd-go-where (wrap-apply room-cmd-go-where))
83 (look-room (wrap-apply room-look-room))
84 ;; in this case the command is the same version as the normal
86 (cmd-look-room (wrap-apply room-look-room))
87 (cmd-look-at (wrap-apply room-look-at))))
90 (append room-actions gameobj-actions))
92 (define room-action-dispatch
93 (simple-dispatcher room-actions*))
95 ;; TODO: Subclass from container?
96 (define-class <room> (<gameobj>)
98 (exits #:init-value '()
99 #:init-keyword #:exits
103 #:init-value (wrap %room-contain-commands))
106 #:allocation #:each-subclass
107 ;; @@: Can remove this indirection once things settle
108 #:init-value (wrap-apply room-action-dispatch)))
110 (define (room-init room message)
111 (room-wire-exits! room))
113 (define (room-wire-exits! room)
114 "Actually hook up the rooms' exit addresses to the rooms they
120 (<-wait room (gameobj-gm room) 'lookup-special
121 #:symbol (slot-ref exit 'to-symbol))
124 (slot-set! exit 'to-address new-exit))
128 (define-mhandler (room-cmd-go room message direct-obj)
132 (equal? (exit-name exit) direct-obj))
136 ;; Set the player's new location
137 (<-wait room (message-from message) 'set-loc!
138 #:loc (slot-ref exit 'to-address))
139 ;; Have the new room update the player to the new location
140 (<- room (slot-ref exit 'to-address) 'look-room
141 #:to-id (message-from message)))
143 (<- room (message-from message) 'tell
144 #:text "You don't see any way to go there.\n"))))
146 (define-mhandler (room-cmd-go-where room message)
147 (<- room (message-from message) 'tell
148 #:text "Go where?\n"))
152 (define (list-words-as-string words)
153 "A little utility for listing a bunch of words in an English-style list"
154 ;; TODO: This could be made faster by traversing the O(n)
155 ;; list once, not twice
156 (let ((word-length (length words)))
158 ((eqv? word-length 0) "")
159 ((eqv? word-length 1) (car words))
161 ;; TODO: and this is NOT efficient
169 (define (room-player-looks-around room player-id)
170 "Handle looking around the room"
173 (format #f "**~a**\n~a\n"
174 (slot-ref room 'name)
175 (slot-ref room 'desc)))
177 ;; Get a list of other things the player would see in the room
178 (define occupant-names-all
182 (<-wait room occupant 'visible-name
183 #:whos-looking player-id)
186 (lambda (x) (equal? x player-id))
187 (hash-map->list (lambda (x _) x)
188 (slot-ref room 'occupants)))))
190 ;; Strip out the #f responses (these aren't listed because they lack a name
191 ;; or they aren't "obviously visible" to the player)
192 (define occupant-names-filtered
193 (filter identity occupant-names-all))
195 (define occupant-names-string
196 (if (eq? occupant-names-filtered '())
198 (format #f "You see here: ~a.\n"
199 (list-words-as-string occupant-names-filtered))))
202 (if occupant-names-string
203 (string-append room-text occupant-names-string)
206 (<- room player-id 'tell
210 (define-mhandler (room-look-room room message)
211 "Command: Player asks to look around the room"
212 (room-player-looks-around
214 ;; Either send it to the #:to-id of the message, or to the
215 ;; sender of the message
216 (message-ref message 'to-id
217 (message-from message))))
219 (define (room-find-thing-called room called-this)
220 "Find something called CALLED-THIS in the room, if any."
226 (message-ref (<-wait room occupant 'goes-by)
229 (if (member called-this goes-by)
231 (hash-map->list (lambda (key val) key)
232 (slot-ref room 'occupants)))
235 (define %formless-desc
236 "You don't see anything special about it.")
238 (define-mhandler (room-look-at room message direct-obj)
239 "Look at a specific object in the room."
240 (define matching-object
241 (room-find-thing-called room direct-obj))
247 (<-wait room matching-object 'get-desc)
250 (<- room (message-from message) 'tell
251 #:text (string-append obj-desc "\n"))
252 (<- room (message-from message) 'tell
253 #:text (string-append %formless-desc "\n")))))
255 (<- room (message-from message) 'tell
256 #:text "You don't see that here, so you can't look at it.\n"))))