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- ;;; Mudsync --- Live hackable MUD
- ;;; Copyright © 2016 Christopher Allan Webber <cwebber@dustycloud.org>
- ;;;
- ;;; 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 <http://www.gnu.org/licenses/>.
- (define-module (mudsync command)
- #:use-module (mudsync parser)
- #:use-module (mudsync utils)
- #:use-module (8sync actors)
- #:use-module (8sync rmeta-slot)
- #:use-module (srfi srfi-1)
- #:use-module (srfi srfi-9)
- #:use-module (ice-9 control)
- #:use-module (ice-9 match)
- #:export (command?
- command-verbs
- command-matcher
- command-should-handle
- command-action
- command-priority
- build-commands
- direct-command
- prep-indir-command
- prep-direct-command
- loose-direct-command
- loose-prep-command
- empty-command
- direct-greedy-command
- greedy-command
- player-gather-command-handlers
- find-command-winner))
- ;;; Commands
- ;;; ========
- (define %low-priority 0)
- (define %default-priority 1)
- (define %high-priority 2)
- ;; ;;; Avoiding some annoying issues crossing the continuation barrier
- ;; ;;; and the "@@" special form
- ;; (define (make-command verbs matcher should-handle action priority)
- ;; (list '*command* verbs matcher should-handle action priority))
- ;; (define command-verbs second)
- ;; (define command-matcher third)
- ;; (define command-should-handle fourth)
- ;; (define command-action fifth)
- ;; (define command-priority sixth)
- (define-record-type <command>
- (make-command verbs matcher should-handle action priority obvious?)
- command?
- (verbs command-verbs)
- (matcher command-matcher)
- (should-handle command-should-handle)
- (action command-action)
- (priority command-priority)
- (obvious? command-obvious?))
- (define-syntax %build-command
- (syntax-rules ()
- ((_ (verb ...) ((cmd-proc action-sym args ...) ...))
- (list (cons verb
- (list (cmd-proc (list verb ...)
- (quote action-sym)
- args ...)
- ...))
- ...))
- ((_ verb ((cmd-proc action-sym args ...) ...))
- (list (cons verb
- (list (cmd-proc (list verb)
- (quote action-sym)
- args ...)
- ...))))))
- (define-syntax-rule (build-commands (verb-or-verbs cmd-defs ...) ...)
- (build-rmeta-slot
- (append (%build-command verb-or-verbs cmd-defs ...) ...)))
- (define* (direct-command verbs action #:key (obvious? #t))
- (make-command verbs
- cmatch-direct-obj
- ;; @@: Should we allow fancier matching than this?
- ;; Let the actor itself pass along this whole method?
- (lambda* (goes-by #:key direct-obj)
- (ci-member direct-obj goes-by))
- action
- %default-priority
- obvious?))
- (define* (loose-direct-command verbs action #:key (obvious? #t))
- (make-command verbs
- cmatch-direct-obj
- ;; @@: Should we allow fancier matching than this?
- ;; Let the actor itself pass along this whole method?
- (const #t)
- action
- %default-priority
- obvious?))
- (define* (prep-indir-command verbs action #:optional prepositions
- #:key (obvious? #t))
- (make-command verbs
- cmatch-indir-obj
- (lambda* (goes-by #:key direct-obj indir-obj preposition)
- (if prepositions
- (and
- (ci-member indir-obj goes-by)
- (ci-member preposition prepositions))
- (ci-member indir-obj goes-by)))
- action
- %high-priority
- obvious?))
- (define* (prep-direct-command verbs action #:optional prepositions
- #:key (obvious? #t))
- (make-command verbs
- cmatch-indir-obj
- (lambda* (goes-by #:key direct-obj indir-obj preposition)
- (if prepositions
- (and
- (ci-member direct-obj goes-by)
- (ci-member preposition prepositions))
- (ci-member direct-obj goes-by)))
- action
- %high-priority
- obvious?))
- (define* (loose-prep-command verbs action #:optional prepositions
- #:key (obvious? #t))
- (make-command verbs
- cmatch-indir-obj
- (const #t)
- action
- %high-priority
- obvious?))
- (define* (empty-command verbs action
- #:key (obvious? #t))
- (make-command verbs
- cmatch-empty
- (const #t)
- action
- %low-priority
- obvious?))
- (define* (greedy-command verbs action
- #:key (obvious? #t))
- (make-command verbs
- cmatch-greedy
- (const #t)
- action
- %low-priority
- obvious?))
- (define* (direct-greedy-command verbs action
- #:key (obvious? #t))
- "greedy commands but which match the direct object"
- (make-command verbs
- cmatch-direct-obj-greedy
- (lambda* (goes-by #:key direct-obj rest)
- (ci-member direct-obj goes-by))
- action
- %low-priority
- obvious?))
- ;; @@: We should probably ONLY allow these to go to users!
- (define* (custom-command verbs matcher should-handle action
- #:optional (priority %default-priority)
- #:key (obvious? #t))
- "Full-grained customizable command."
- (make-command verbs matcher should-handle action priority obvious?))
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