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authorDavid Thompson <dthompson@member.fsf.org>2013-09-04 20:35:31 -0400
committerDavid Thompson <dthompson@member.fsf.org>2013-09-06 00:09:29 -0400
commit81e6827836cc8162fcb0ca2b4f3fa81b189cf22f (patch)
tree2d69bfabed44f7833d303e237374ae3c7d313fd0 /2d/private
parent9919a992c64afb47773e618d113801ae27d25eb7 (diff)
Prevent circular dependency by moving core game data structures to another module.
Diffstat (limited to '2d/private')
-rw-r--r--2d/private/game.scm87
1 files changed, 87 insertions, 0 deletions
diff --git a/2d/private/game.scm b/2d/private/game.scm
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@@ -0,0 +1,87 @@
+;;; guile-2d
+;;; Copyright (C) 2013 David Thompson <dthompson2@worcester.edu>
+;;;
+;;; Guile-2d is free software: you can redistribute it and/or modify it
+;;; under the terms of the GNU Lesser General Public License as
+;;; published by the Free Software Foundation, either version 3 of the
+;;; License, or (at your option) any later version.
+;;;
+;;; Guile-2d 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
+;;; Lesser General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU Lesser General Public
+;;; License along with this program. If not, see
+;;; <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;;
+;; Game data structure.
+;;
+;;; Code:
+
+(define-module (2d private game)
+ #:use-module (srfi srfi-9)
+ #:use-module (2d observer))
+
+;;;
+;;; Scenes
+;;;
+
+(define-record-type <scene>
+ (%make-scene title observer update-proc draw-proc state)
+ scene?
+ (title scene-title)
+ (observer scene-observer)
+ (update-proc scene-update-proc)
+ (draw-proc scene-draw-proc)
+ (state scene-state))
+
+(define (scene-trigger scene event-type . args)
+ "Trigger an event on the scene observer."
+ (apply observer-trigger
+ (scene-observer scene)
+ event-type
+ (scene-state scene)
+ args))
+
+(define (scene-draw scene)
+ "Draw scene."
+ ((scene-draw-proc scene) (scene-state scene)))
+
+(define (scene-update scene)
+ "Update scene."
+ ((scene-update-proc scene) (scene-state scene)))
+
+(export <scene>
+ %make-scene
+ scene?
+ scene-title
+ scene-observer
+ scene-update-proc
+ scene-draw-proc
+ scene-state
+ scene-trigger
+ scene-update
+ scene-draw)
+
+;;;
+;;; Games
+;;;
+
+(define-record-type <game>
+ (%make-game title resolution fullscreen first-scene)
+ game?
+ (title game-title)
+ (resolution game-resolution)
+ (fullscreen game-fullscreen?)
+ (first-scene game-first-scene))
+
+(export <game>
+ %make-game
+ game?
+ game-title
+ game-resolution
+ game-fullscreen?
+ game-first-scene)