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 game-master)
20 #:use-module (mudsync networking)
21 #:use-module (8sync systems actors)
22 #:use-module (8sync agenda)
23 #:use-module (oop goops)
24 #:use-module (ice-9 match)
25 #:export (<game-master>
26 make-default-room-conn-handler))
28 ;;; The game master! Runs the world.
29 ;;; =================================
31 (define-class <game-master> (<actor>)
32 ;; Directory of "special" objects.
33 (special-dir #:init-thunk make-hash-table
34 #:getter gm-special-dir)
36 ;; A mapping of client ids to in-game actors
38 (client-dir #:init-thunk make-hash-table
39 #:getter gm-client-dir)
40 (reverse-client-dir #:init-thunk make-hash-table
41 #:getter gm-reverse-client-dir)
44 (network-manager #:getter gm-network-manager
47 ;; How we get a new connection acclimated to the system
48 (new-conn-handler #:getter gm-new-conn-handler
49 #:init-keyword #:new-conn-handler)
54 (init-world (wrap-apply gm-init-world))
55 (client-input (wrap-apply gm-handle-client-input))
56 (lookup-special (wrap-apply gm-lookup-special))
57 (new-client (wrap-apply gm-new-client))
58 (write-home (wrap-apply gm-write-home))
59 (client-closed (wrap-apply gm-client-closed)))))
62 ;;; .. begin world init stuff ..
64 (define (gm-init-world gm message)
68 ;; Init basic rooms / structure
69 (gm-init-game-spec gm (message-ref message 'game-spec))
71 ;; Restore database-based actors
75 (gm-setup-network gm))
77 (define (gm-init-game-spec gm game-spec)
78 "Initialize the prebuilt special objects"
83 ((symbol class loc args ...)
84 ;; initialize the special object
86 (apply create-actor* gm class
87 ;; set cookie to be the object's symbol
88 (symbol->string symbol)
91 ;; register the object
92 (hash-set! (gm-special-dir gm) symbol special-obj)
93 ;; Give ourselves an instruction to set the location
94 (set! set-locs (cons (cons special-obj loc) set-locs))
95 ;; pass it back to the map
99 ;; Set all initial locations
104 (<-wait gm special-obj 'set-loc!
105 #:loc (hash-ref (gm-special-dir gm) loc)))))
108 ;; now init all the objects
110 (lambda (special-obj)
111 (format #t "Initializing ~s...\n" (address->string special-obj))
112 (<-wait gm special-obj 'init))
116 (define (gm-setup-network gm)
117 ;; Create a default network manager if none available
118 (slot-set! gm 'network-manager
119 (create-actor* gm <network-manager> "netman"
120 #:send-input-to (actor-id gm)))
122 ;; TODO: Add host and port options
123 (<-wait gm (gm-network-manager gm) 'start-listening))
125 (define (gm-setup-database gm)
128 ;;; .. end world init stuff ...
130 (define-mhandler (gm-new-client actor message client)
131 ;; @@: Maybe more indirection than needed for this
132 ((gm-new-conn-handler actor) actor client))
135 (define (gm-handle-client-input actor message)
136 "Handle input from a client."
137 (define client-id (message-ref message 'client))
138 (define input (message-ref message 'data))
140 (define player (hash-ref (gm-client-dir actor) client-id))
143 (format #t "DEBUG: From ~s: ~s\n" client-id input)
145 (<- actor player 'handle-input
148 (define-mhandler (gm-lookup-special actor message symbol)
149 (<-reply actor message
150 #:room-id (hash-ref (slot-ref actor 'special-dir) symbol)))
152 (define-mhandler (gm-write-home actor message text)
153 (define client-id (hash-ref (gm-reverse-client-dir actor)
154 (message-from message)))
155 (<- actor (gm-network-manager actor) 'send-to-client
159 (define-mhandler (gm-client-closed gm message client)
160 ;; Do we have this client registered to an actor? Get the id if so.
161 (define actor-id (hash-ref (gm-client-dir gm) client))
163 ;; Have the actor appropriately disappear / be removed from its
164 ;; room, if we have one.
165 ;; (In some games, if the user never connected)
167 (<-wait gm actor-id 'disconnect-self-destruct)
168 ;; Unregister from the client directories.
169 (gm-unregister-client! gm client)))
174 (define (gm-register-client! gm client-id player)
175 (hash-set! (gm-client-dir gm) client-id player)
176 (hash-set! (gm-reverse-client-dir gm) player client-id))
178 (define* (gm-unregister-client! gm client-id #:optional destroy-player)
179 "Remove a connection/player combo and ask them to self destruct"
180 (match (hash-remove! (gm-client-dir gm) client-id) ; Remove from our client dir
182 ;; Remove from reverse table too
183 (hash-remove! (gm-reverse-client-dir gm) client-id)
186 (<- gm player-id 'self-destruct)))
187 (#f (throw 'no-client-to-unregister
188 "Can't unregister a client that doesn't exist?"
193 (define (make-default-room-conn-handler default-room)
194 "Make a handler for a GM that dumps people in a default room
195 with an anonymous persona"
197 (lambda (gm client-id)
198 (set! count (+ count 1))
199 (let* ((guest-name (string-append "Guest-"
200 (number->string count)))
202 (hash-ref (gm-special-dir gm) default-room))
203 ;; create and register the player
205 (create-actor* gm (@@ (mudsync player) <player>) "player"
208 #:client client-id)))
209 ;; Register the player in our database of players -> connections
210 (gm-register-client! gm client-id player)
211 ;; Dump the player into the default room
212 (<-wait gm player 'set-loc! #:loc room-id)
213 ;; Initialize the player
214 (<- gm player 'init)))))