fix flash algorithm to smoothly transition from bgcolor

2011-07-07 16:29:41 -04:00 · 2011-07-07 16:29:41 -04:00 · 812c342bcb
commit 812c342bcb
parent d00614d2cd
1 changed files with 1 additions and 1 deletions
--- a/Window.py
+++ b/Window.py
@ -120,7 +120,7 @@ class Window(object):
            delta = datetime.now() - self.flash_start_dt
            delta_msec = delta.seconds * 1000 + delta.microseconds / 1000
            period = delta_msec / float(self.conf['flash_rate'])
-            mix = (math.sin(math.pi * 2 * period) + 1.0) / 2.0
+            mix = (1.0 - math.cos(math.pi * 2 * period)) / 2.0
        else:
            mix = 0
        linear_combination = lambda (x, y): x + (y - x) * mix