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 (8sync systems actors)
24 #:use-module (8sync agenda)
25 #:use-module (oop goops)
40 ;;; Actions supported by all gameobj
41 (define gameobj-actions
43 (get-commands (wrap-apply gameobj-get-commands))
44 (get-container-commands (wrap-apply gameobj-get-container-commands))
45 (get-occupants (wrap-apply gameobj-get-occupants))
46 (add-occupant! (wrap-apply gameobj-add-occupant!))
47 (remove-occupant! (wrap-apply gameobj-remove-occupant!))
48 (set-loc! (wrap-apply gameobj-set-loc!))
49 (get-name (wrap-apply gameobj-get-name))
50 (get-desc (wrap-apply gameobj-get-desc))
53 ;;; *all* game components that talk to players should somehow
54 ;;; derive from this class.
55 ;;; And all of them need a GM!
57 (define-class <gameobj> (<actor>)
60 #:accessor gameobj-loc)
62 ;; Uses a hash table like a set (values ignored)
63 (occupants #:init-thunk make-hash-table
64 #:accessor gameobj-occupants)
67 (gm #:init-keyword #:gm
69 ;; a name to be known by
70 (name #:init-keyword #:name
71 #:accessor gameobj-name)
74 #:init-keyword #:desc)
76 ;; how to print our name
77 (name-f #:init-keyword #:name-f
78 #:getter gameobj-name-f
79 #:init-value (wrap gameobj-simple-name-f))
82 (aliases #:init-keyword #:aliases
85 ;; Commands we can handle
86 (commands #:init-value '())
88 ;; Commands we can handle by being something's container
89 (container-commands #:init-value '())
92 (simple-dispatcher gameobj-actions)))
95 ;;; gameobj message handlers
96 ;;; ========================
98 ;; Kind of a useful utility, maybe?
99 (define (simple-slot-getter slot)
100 (lambda (actor message)
101 (reply-message actor message
102 #:val (slot-ref actor slot))))
104 (define-mhandler (gameobj-get-commands actor message verb)
105 (<-reply actor message #:commands (slot-ref actor 'commands)))
107 (define-mhandler (gameobj-get-container-commands actor message verb)
108 (<-reply actor message #:commands (slot-ref actor 'container-commands)))
110 (define-mhandler (gameobj-add-occupant! actor message who)
111 (hash-set! (slot-ref actor 'occupants)
114 (define-mhandler (gameobj-remove-occupant! actor message who)
115 (hash-remove! (slot-ref actor 'occupants) who))
117 (define-mhandler (gameobj-get-occupants actor message)
119 (hash-map->list (lambda (key val) key)
120 (gameobj-occupants actor)))
122 (<-reply actor message
123 #:occupants occupants))
125 ;; @@: Should it really be #:id ? Maybe #:loc-id or #:loc?
126 (define-mhandler (gameobj-set-loc! actor message loc)
127 (define old-loc (gameobj-loc actor))
128 (format #t "DEBUG: Location set to ~s for ~s\n"
129 loc (actor-id-actor actor))
131 (set! (gameobj-loc actor) loc)
132 ;; Change registation of where we currently are
134 (<- actor loc 'add-occupant! #:who (actor-id actor)))
136 (<- actor old-loc 'remove-occupant! #:who (actor-id actor))))
138 (define gameobj-get-name (simple-slot-getter 'name))
139 (define gameobj-get-desc (simple-slot-getter 'desc))
141 (define (gameobj-simple-name-f gameobj)
142 "Simplest version: return ourselves for our name."
143 (gameobj-name gameobj))