Add transition example.

* examples/transition.scm: New file.

1 files changed, 45 insertions, 0 deletions

diff --git a/examples/transition.scm b/examples/transition.scm
new file mode 100644
index 0000000..39f7a93
--- /dev/null
+++ b/examples/transition.scm
@@ -0,0 +1,45 @@
+;;; Sly
+;;; Copyright (C) 2014 David Thompson <dthompson2@worcester.edu>
+;;;
+;;; 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/>.
+
+(use-modules (sly game)
+             (sly sprite)
+             (sly vector)
+             (sly window)
+             (sly color)
+             (sly signal)
+             (sly texture)
+             (sly transition))
+
+(load "common.scm")
+
+(define texture (load-texture "images/p1_front.png"))
+
+(define sprite
+  (signal-map
+   (lambda (position color)
+     (make-sprite texture
+                  #:position position
+                  #:color color))
+   (transition #(32 240) #(608 240) 120
+               #:ease ease-in-out-quad)
+   (transition white tango-plum 120)))
+
+(add-hook! draw-hook (lambda (dt alpha)
+                       (draw-sprite (signal-ref-maybe sprite))))
+
+(with-window (make-window #:title "Transitions")
+  (start-game-loop))