Preparing skeleton for engines, systems, etc

* engines/arcade.scm: First engine for developing arcade games

* examples/asteroids.scm: Asteroids game, with two ways of make a game

* game.scm: New structure that contains the engine and all the entities
            with their initial state

* systems/opengl.scm: First system for displaying entities using opengl
                      libraries

diff --git a/src/engines/arcade.scm b/src/engines/arcade.scm
new file mode 100644 (file)
index 0000000..5d1e429
--- /dev/null
+++ b/src/engines/arcade.scm
@@ -0,0 +1,19 @@
+;;; 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 engines arcade)
+  #:use-module (gacela engine))

diff --git a/src/examples/asteroids.scm b/src/examples/asteroids.scm
new file mode 100644 (file)
index 0000000..ff607f4
--- /dev/null
+++ b/src/examples/asteroids.scm
@@ -0,0 +1,32 @@
+;;; 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 examples asteroids)
+  #:use-module (gacela game))
+
+
+(define asteroids (make-game "Asteroids"))
+(define player (make-entity))
+(add-component player (make-transform))
+(add-component player (make-mesh))
+(add-entity asteroids player)
+
+(define asteroids
+  (make-game "Asteroids"
+   (make-entity
+    (make-transform)
+    (make-mesh))))

diff --git a/src/game.scm b/src/game.scm
new file mode 100644 (file)
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)

diff --git a/src/systems/opengl.scm b/src/systems/opengl.scm
new file mode 100644 (file)
index 0000000..0b96525
--- /dev/null
+++ b/src/systems/opengl.scm
@@ -0,0 +1,31 @@
+;;; Gacela, a GNU Guile extension for fast games development
+;;; Copyright (C) 2013 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 systems opengl)
+  #:use-module (figl gl)
+  #:use-module (figl glu)
+  #:use-module (figl glut)
+  #:use-module (gacela system))
+
+(define-component opengl-window title #:optional window-handle)
+
+(define-system windows-manager ((windows (window-handle)))
+  (display windows)
+  (newline))
+
+(export-component opengl-window)
+(export windows-manager)