From 8bb83a8fd982cf3a4c4708ae8e4a98c2c413f7b2 Mon Sep 17 00:00:00 2001
From: Roman Kapustin <TocoToucanMS@gmail.com>
Date: Sat, 28 Jul 2018 22:16:14 +0300
Subject: [PATCH] Fix nullref in KeyCounterCollection

---
 osu.Game/Screens/Play/KeyCounterCollection.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/osu.Game/Screens/Play/KeyCounterCollection.cs b/osu.Game/Screens/Play/KeyCounterCollection.cs
index 2a5ecd474d..f701c468e9 100644
--- a/osu.Game/Screens/Play/KeyCounterCollection.cs
+++ b/osu.Game/Screens/Play/KeyCounterCollection.cs
@@ -38,7 +38,8 @@ namespace osu.Game.Screens.Play
             key.FadeTime = FadeTime;
             key.KeyDownTextColor = KeyDownTextColor;
             key.KeyUpTextColor = KeyUpTextColor;
-            key.Clock = (IFrameBasedClock)AudioClock;
+            if (AudioClock != null && AudioClock is IFrameBasedClock basedClock)
+                key.Clock = basedClock;
         }
 
         public void ResetCount()