1 ;;; Gacela, a GNU Guile extension for fast games development
2 ;;; Copyright (C) 2013 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/>.
17 (define-module (gacela entity)
18 #:use-module (bongodb)
19 #:export (make-entity-set
23 (define (make-entity-set . entities)
24 (add-entities (make-collection) entities))
26 (define (add-entities entity-set . entities)
27 (let ((entities (filter
28 (lambda (e) (not (null? e)))
31 (apply insert (cons entity-set entities)))
35 (define (entities-count entity-set)