;;; Mudsync --- Live hackable MUD ;;; Copyright © 2016 Christine Lemmer-Webber ;;; ;;; This file is part of Mudsync. ;;; ;;; Mudsync is free software; you can redistribute it and/or modify it ;;; under the terms of the GNU General Public License as published by ;;; the Free Software Foundation; either version 3 of the License, or ;;; (at your option) any later version. ;;; ;;; Mudsync is distributed in the hope that it will be useful, but ;;; WITHOUT ANY WARRANTY; without even the implied warranty of ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ;;; General Public License for more details. ;;; ;;; You should have received a copy of the GNU General Public License ;;; along with Mudsync. If not, see . ;;; Containers ;;; ========== ;;; ;;; While all gameobjs are containers, some gameobjs are more ;;; containers than others. (define-module (mudsync container) #:use-module (8sync) #:use-module (oop goops) #:use-module (mudsync gameobj) #:use-module (mudsync utils) #:use-module (ice-9 control) #:export ( cmd-take-from cmd-put-in)) (define-actor () ((cmd-take-from cmd-take-from) (cmd-put-in cmd-put-in)) ;; Can be a boolean or a procedure accepting ;; (gameobj whos-acting take-what) (take-from-me? #:init-value #t #:init-keyword #:take-from-me?) ;; Can be a boolean or a procedure accepting ;; (gameobj whos-acting put-what) (put-in-me? #:init-value #t #:init-keyword #:put-in-me?)) ;; @@: Moving this to a container subclass/mixin could allow a lot more ;; customization of take out / put in phrases (define* (cmd-take-from gameobj message #:key direct-obj indir-obj preposition (player (message-from message))) (define player-name (mbody-val (<-wait player 'get-name))) (define player-loc (mbody-val (<-wait player 'get-loc))) (define our-name (slot-ref gameobj 'name)) ;; We need to check if we even have such a thing (define this-thing (call/ec (lambda (return) (for-each (lambda (occupant) (define goes-by (mbody-val (<-wait occupant 'goes-by))) (when (ci-member direct-obj goes-by) (return occupant))) (gameobj-occupants gameobj)) ;; nothing found #f))) (define (this-thing-name) (mbody-val (<-wait this-thing 'get-name))) (define (should-take-from-me) (and this-thing (slot-ref-maybe-runcheck gameobj 'take-from-me? player this-thing))) (define (default-objection) `("Unfortunately, it doesn't seem like you can take " ,(this-thing-name) " " ,preposition " " ,our-name ".")) (define (this-thing-objection) (mbody-receive (_ taken-ok? #:key why-not) ; does the object object to being removed? (<-wait this-thing 'ok-to-be-taken-from? player) ; @@ no need to supply from where (and (not taken-ok?) ;; Either give the specified reason, or give a boilerplate one (or why-not (default-objection))))) (cond ;; Unfortunately this does leak information about what is contained ;; by us. Maybe not what's wanted in all circumstances. ((not this-thing) (<- player 'tell #:text `("You don't see any such " ,direct-obj " to take " ,preposition " " ,our-name "."))) ;; A particular objection to taking this thing. ;; We should allow customizing the reason here, which could be ;; provided by the 'ok-to-be-taken-from? slot. ((not (should-take-from-me)) (<- player 'tell #:text (default-objection))) ;; the thing we wsant to take itself has objected... ((this-thing-objection) => (lambda (objection) (<- player 'tell #:text objection))) ;; looks like we can take it (else ;; Wait to announce to the player just in case settting the location ;; errors out or something. Maybe it's overthinking things, I dunno. (<-wait this-thing 'set-loc! #:loc player) (<- player 'tell #:text `("You take " ,(this-thing-name) " from " ,our-name ".")) (<- player-loc 'tell-room #:text `(,player-name " takes " ,(this-thing-name) " from " ,our-name ".") #:exclude player)))) (define* (cmd-put-in gameobj message #:key direct-obj indir-obj preposition (player (message-from message))) (define player-name (mbody-val (<-wait player 'get-name))) (define player-loc (mbody-val (<-wait player 'get-loc))) (define our-name (slot-ref gameobj 'name)) ;; We need to check if we even have such a thing (define this-thing (call/ec (lambda (return) (for-each (lambda (occupant) (define goes-by (mbody-val (<-wait occupant 'goes-by))) (when (ci-member direct-obj goes-by) (return occupant))) (mbody-val (<-wait player 'get-occupants))) ;; nothing found #f))) (define (this-thing-name) (mbody-val (<-wait this-thing 'get-name))) (define (should-put-in-me) (and this-thing (slot-ref-maybe-runcheck gameobj 'put-in-me? player this-thing))) (define (default-objection) `("As much as you'd like to, it doesn't seem like you can put " ,(this-thing-name) " " ,preposition " " ,our-name ".")) (define (this-thing-objection) (mbody-receive (_ put-in-ok? #:key why-not) ; does the object object to being moved? (<-wait this-thing 'ok-to-be-put-in? player (actor-id gameobj)) (and (not put-in-ok?) ;; Either give the specified reason, or give a boilerplate one (or why-not (default-objection))))) (cond ;; Is it not there, or maybe we won't allow it to be taken? ((not this-thing) (<- player 'tell #:text `("You don't seem to have any such " ,direct-obj " to put " ,preposition " " ,our-name "."))) ((or (not (should-put-in-me))) (<- player 'tell #:text (default-objection))) ;; the thing we wsant to take itself has objected... ((this-thing-objection) => (lambda (objection) (<- player 'tell #:text objection))) ;; looks like we can take it (else ;; Wait to announce to the player just in case settting the location ;; errors out or something. Maybe it's overthinking things, I dunno. (<-wait this-thing 'set-loc! #:loc (actor-id gameobj)) (<- player 'tell #:text `("You put " ,(this-thing-name) " " ,preposition " " ,our-name ".")) (<- player-loc 'tell-room #:text `(,player-name " puts " ,(this-thing-name) " " ,preposition " " ,our-name ".") #:exclude player))))