From ba23ce75c2d16bbf40d7d945d426644d044645f2 Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Mon, 22 Aug 2022 14:02:41 +0900
Subject: [PATCH] Make `FramedBeatmapClock.Track` non-null

---
 osu.Game/Beatmaps/FramedBeatmapClock.cs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/osu.Game/Beatmaps/FramedBeatmapClock.cs b/osu.Game/Beatmaps/FramedBeatmapClock.cs
index 62f1af3ef2..b4a96ed46a 100644
--- a/osu.Game/Beatmaps/FramedBeatmapClock.cs
+++ b/osu.Game/Beatmaps/FramedBeatmapClock.cs
@@ -31,12 +31,12 @@ namespace osu.Game.Beatmaps
         /// <summary>
         /// The length of the underlying beatmap track. Will default to 60 seconds if unavailable.
         /// </summary>
-        public double TrackLength => Track?.Length ?? 60000;
+        public double TrackLength => Track.Length;
 
         /// <summary>
         /// The underlying beatmap track, if available.
         /// </summary>
-        public Track? Track { get; private set; } // TODO: virtual rather than null?
+        public Track Track { get; private set; } = new TrackVirtual(60000);
 
         /// <summary>
         /// The total frequency adjustment from pause transforms. Should eventually be handled in a better way.
@@ -144,7 +144,7 @@ namespace osu.Game.Beatmaps
 
         public void ChangeSource(IClock? source)
         {
-            Track = source as Track;
+            Track = source as Track ?? new TrackVirtual(60000);
             decoupledClock.ChangeSource(source);
         }