X-Git-Url: https://git.jsancho.org/?a=blobdiff_plain;f=src%2Fgame.scm;fp=src%2Fgame.scm;h=5a8b7d31dfe956998b68c4a121e353b914adf67e;hb=3b22fd3f425de9419f98bacf2d1c4675058389ed;hp=0000000000000000000000000000000000000000;hpb=929ba6a645c92ebea58c8c93c412197b56aa775f;p=gacela.git

diff --git a/src/game.scm b/src/game.scm
new file mode 100644
index 0000000..5a8b7d3
--- /dev/null
+++ b/src/game.scm
@@ -0,0 +1,85 @@
+;;; Gacela, a GNU Guile extension for fast games development
+;;; Copyright (C) 2014 by Javier Sancho Fernandez <jsf at jsancho dot org>
+;;;
+;;; This program 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.
+;;;
+;;; This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+(define-module (gacela game)
+  #:use-module (gacela engine)
+  #:use-module (ice-9 vlist)
+  #:use-module (srfi srfi-1)
+  #:use-module (srfi srfi-9)
+  #:use-module (srfi srfi-9 gnu))
+
+
+;;; Working with entities
+
+(define-record-type entity
+  (make-entity-record id components)
+  entity?
+  (id entity-id)
+  (components entity-components set-entity-components!))
+
+(set-record-type-printer! entity
+  (lambda (record port)
+    (format port "#<[entity ~a] ~a>"
+	    (entity-id record)
+	    (entity-components record))))
+
+(define (make-entity . components)
+  (make-entity-record
+   (gensym)
+   components))
+
+(export make-entity
+	entity?
+	entity-id)
+
+
+;;; Game Definition
+
+(define-record-type game
+  (make-game-record name entities)
+  game?
+  (name game-name set-game-name!)
+  (entities game-entities set-game-entities!))
+
+(set-record-type-printer! game
+  (lambda (record port)
+    (format port "#<[Game: ~a] ~a>"
+	    (game-name record)
+	    (map
+	     (lambda (id)
+	       (cdr (vhash-assoc id (game-entities record))))
+	     (vhash-fold
+	      (lambda (key value result)
+		(lset-union eqv? (list key) result))
+	      '()
+	      (game-entities record))))))
+
+(define (make-game name . entities)
+  (make-game-record
+   name
+   (alist->vhash
+    (map (lambda (e) (cons (entity-id e) e))
+	 entities))))
+
+(export make-game
+	game?)
+
+
+;;; Working with games
+
+(define (add-entity game entity)
+  #f)