1 ;;; Gacela, a GNU Guile extension for fast games development
2 ;;; Copyright (C) 2009 by Javier Sancho Fernandez <jsf at jsancho dot org>
4 ;;; This program is free software: you can redistribute it and/or modify
5 ;;; it under the terms of the GNU General Public License as published by
6 ;;; the Free Software Foundation, either version 3 of the License, or
7 ;;; (at your option) any later version.
9 ;;; This program is distributed in the hope that it will be useful,
10 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
11 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 ;;; GNU General Public License for more details.
14 ;;; You should have received a copy of the GNU General Public License
15 ;;; along with this program. If not, see <http://www.gnu.org/licenses/>.
20 (define show-mob-hash #f)
21 (define hide-mob-hash #f)
22 (define get-active-mobs #f)
23 (define clear-active-mobs #f)
24 (define mobs-changed? #f)
26 (let ((active-mobs (make-hash-table)) (changed #f))
29 (hash-set! active-mobs key mob)
34 (hash-remove! active-mobs key)
38 (lambda* (#:optional (refreshed #t))
39 (set! changed (not refreshed))
40 (hash-map->list (lambda (k v) v) active-mobs)))
42 (set! clear-active-mobs
45 (hash-clear! active-mobs)))
51 (define-macro (show-mob mob)
54 (show-mob-hash (m 'get-mob-id) m)))
56 `(show-mob-hash (,mob 'get-mob-id) (lambda () (,mob))))))
58 (define-macro (hide-mob mob)
61 (hide-mob-hash (m 'get-mob-id))))
63 `(hide-mob-hash (,mob 'get-mob-id)))))
65 (define (run-mobs mobs)
77 (define-macro (define-mob mob-head . body)
78 (let ((name (car mob-head)) (attr (cdr mob-head)))
79 `(define ,(string->symbol (string-concatenate (list "make-" (symbol->string name))))
80 (lambda* ,(if (null? attr) '() `(#:key ,@attr))
81 (the-mob ',name () ,attr ,@body)))))
83 (define-macro (the-mob type attr publish . body)
84 (let ((mob-id-symbol (gensym))
85 (type-symbol (gensym)))
86 `(let ((,mob-id-symbol (gensym))
89 (lambda* (#:optional (option #f))
91 (hide-mob-hash ,mob-id-symbol))
100 (lambda (key . args) #f))
101 (cond ((not (null? ',publish))
102 (display ,(cons 'list (map (lambda (x) `(cons ',(car x) ,(car x))) publish)))
103 (publish-mob-data ,mob-id-symbol ,type-symbol ,(cons 'list (map (lambda (x) `(cons ',(car x) ,(car x))) publish)))))
106 (define-macro (lambda-mob attr . body)
107 `(the-mob 'undefined ,attr '() ,@body))
112 (define publish-mob-data #f)
113 (define clear-mob-data #f)
114 (define def-mobs-event #f)
116 (define published-data (make-hash-table))
117 (define mobs-events (make-hash-table))
120 (set! publish-mob-data
121 (lambda (mob-id mob-type data)
122 (let ((t (hash-ref published-data mob-type))
123 (i (cons mob-id data)))
124 (hash-set! published-data mob-type
130 (hash-clear! published-data)))
133 (lambda (type1 type2 fun)
137 (define-macro (define-mobs-event type1 type2 . body)
141 ,(cond ((null? body) #f)
142 (else `(lambda () ,@body)))))