From 533c17a1816b8eb7b8cc38670634e3f9690d264a Mon Sep 17 00:00:00 2001
From: mstr2 <oxmyx@gmx.de>
Date: Fri, 1 Nov 2019 18:37:18 +0100
Subject: [PATCH] TransitionInstance with zero duration is now completed on
 first tick

---
 src/Avalonia.Animation/TransitionInstance.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Avalonia.Animation/TransitionInstance.cs b/src/Avalonia.Animation/TransitionInstance.cs
index 10ea6bf523..a69ad50a4b 100644
--- a/src/Avalonia.Animation/TransitionInstance.cs
+++ b/src/Avalonia.Animation/TransitionInstance.cs
@@ -28,7 +28,7 @@ namespace Avalonia.Animation
 
         private void TimerTick(TimeSpan t)
         {
-            var interpVal = (double)t.Ticks / _duration.Ticks;
+            var interpVal = _duration.Ticks == 0 ? 1d : (double)t.Ticks / _duration.Ticks;
 
             // Clamp interpolation value.
             if (interpVal >= 1d | interpVal < 0d)