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/>.
22 (define-module (mudsync gameobj)
23 #:use-module (mudsync command)
24 #:use-module (8sync systems actors)
25 #:use-module (8sync agenda)
26 #:use-module (srfi srfi-1)
27 #:use-module (oop goops)
42 ;;; Actions supported by all gameobj
43 (define gameobj-actions
45 (get-commands (wrap-apply gameobj-get-commands))
46 (get-container-commands (wrap-apply gameobj-get-container-commands))
47 (get-occupants (wrap-apply gameobj-get-occupants))
48 (add-occupant! (wrap-apply gameobj-add-occupant!))
49 (remove-occupant! (wrap-apply gameobj-remove-occupant!))
50 (set-loc! (wrap-apply gameobj-set-loc!))
51 (get-name (wrap-apply gameobj-get-name))
52 (get-desc (wrap-apply gameobj-get-desc))
55 ;;; *all* game components that talk to players should somehow
56 ;;; derive from this class.
57 ;;; And all of them need a GM!
59 (define-class <gameobj> (<actor>)
62 #:accessor gameobj-loc)
64 ;; Uses a hash table like a set (values ignored)
65 (occupants #:init-thunk make-hash-table
66 #:accessor gameobj-occupants)
69 (gm #:init-keyword #:gm
71 ;; a name to be known by
72 (name #:init-keyword #:name
73 #:accessor gameobj-name)
76 #:init-keyword #:desc)
78 ;; how to print our name
79 (name-f #:init-keyword #:name-f
80 #:getter gameobj-name-f
81 #:init-value (wrap gameobj-simple-name-f))
84 (aliases #:init-keyword #:aliases
87 ;; Commands we can handle
88 (commands #:init-value '())
90 ;; Commands we can handle by being something's container
91 (container-commands #:init-value '())
94 (simple-dispatcher gameobj-actions)))
97 ;;; gameobj message handlers
98 ;;; ========================
100 ;; Kind of a useful utility, maybe?
101 (define (simple-slot-getter slot)
102 (lambda (actor message)
103 (reply-message actor message
104 #:val (slot-ref actor slot))))
106 (define (filter-commands commands verb)
109 (equal? (command-verbs cmd)
113 (define-mhandler (gameobj-get-commands actor message verb)
114 (define filtered-commands
115 (filter-commands (slot-ref actor 'commands)
117 (<-reply actor message #:commands filtered-commands))
119 (define-mhandler (gameobj-get-container-commands actor message verb)
120 (define filtered-commands
121 (filter-commands (slot-ref actor 'container-commands)
123 (<-reply actor message #:commands filtered-commands))
125 (define-mhandler (gameobj-add-occupant! actor message who)
126 (hash-set! (slot-ref actor 'occupants)
129 (define-mhandler (gameobj-remove-occupant! actor message who)
130 (hash-remove! (slot-ref actor 'occupants) who))
132 (define-mhandler (gameobj-get-occupants actor message)
134 (hash-map->list (lambda (key val) key)
135 (gameobj-occupants actor)))
137 (<-reply actor message
138 #:occupants occupants))
140 ;; @@: Should it really be #:id ? Maybe #:loc-id or #:loc?
141 (define-mhandler (gameobj-set-loc! actor message loc)
142 (define old-loc (gameobj-loc actor))
143 (format #t "DEBUG: Location set to ~s for ~s\n"
144 loc (actor-id-actor actor))
146 (set! (gameobj-loc actor) loc)
147 ;; Change registation of where we currently are
149 (<- actor loc 'add-occupant! #:who (actor-id actor)))
151 (<- actor old-loc 'remove-occupant! #:who (actor-id actor))))
153 (define gameobj-get-name (simple-slot-getter 'name))
154 (define gameobj-get-desc (simple-slot-getter 'desc))
156 (define (gameobj-simple-name-f gameobj)
157 "Simplest version: return ourselves for our name."
158 (gameobj-name gameobj))