From da30eafa3020d3c1479e32ca4e37f43e114098ad Mon Sep 17 00:00:00 2001
From: smoogipoo <smoogipoo@smgi.me>
Date: Tue, 28 Apr 2020 14:47:45 +0900
Subject: [PATCH] Prevent potential exception

---
 osu.Game/Rulesets/UI/DrawableRuleset.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/osu.Game/Rulesets/UI/DrawableRuleset.cs b/osu.Game/Rulesets/UI/DrawableRuleset.cs
index 5062c92afe..7170d425e2 100644
--- a/osu.Game/Rulesets/UI/DrawableRuleset.cs
+++ b/osu.Game/Rulesets/UI/DrawableRuleset.cs
@@ -59,7 +59,7 @@ namespace osu.Game.Rulesets.UI
         /// </summary>
         public PassThroughInputManager KeyBindingInputManager;
 
-        public override double GameplayStartTime => Objects.First().StartTime - 2000;
+        public override double GameplayStartTime => Objects.FirstOrDefault()?.StartTime - 2000 ?? 0;
 
         private readonly Lazy<Playfield> playfield;