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+;;; guile-2d
+;;; Copyright (C) 2014 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:
+;;
+;; SDL event handlers.
+;;
+;;; Code:
+
+(define-module (2d event)
+ #:use-module ((sdl sdl) #:prefix SDL:)
+ #:export (process-events
+ register-event-handler))
+
+(define process-events
+ (let ((e (SDL:make-event)))
+ (lambda ()
+ "Process all events in the input event queue."
+ (while (SDL:poll-event e)
+ (handle-event e)))))
+
+(define event-handlers (make-hash-table))
+
+(define (register-event-handler event-type proc)
+ (hashq-set! event-handlers event-type proc))
+
+(define (handle-event e)
+ "Run the relevant hook for the event E."
+ (let ((handle (hashq-get-handle event-handlers (SDL:event:type e))))
+ (when handle
+ ((cdr handle) e))))