From e1dfe364b22690d5eada9900119b3efca2879a5e Mon Sep 17 00:00:00 2001
From: smoogipooo <smoogipooo@gmail.com>
Date: Mon, 7 Aug 2017 14:07:49 +0900
Subject: [PATCH] Fix lifetime performance regression.

---
 .../Objects/Drawables/DrawableScrollingHitObject.cs    | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/osu.Game/Rulesets/Objects/Drawables/DrawableScrollingHitObject.cs b/osu.Game/Rulesets/Objects/Drawables/DrawableScrollingHitObject.cs
index 8dc17b9542..52b8d3e12d 100644
--- a/osu.Game/Rulesets/Objects/Drawables/DrawableScrollingHitObject.cs
+++ b/osu.Game/Rulesets/Objects/Drawables/DrawableScrollingHitObject.cs
@@ -22,20 +22,22 @@ protected DrawableScrollingHitObject(TObject hitObject)
         {
         }
 
+        private double? lifetimeStart;
         public override double LifetimeStart
         {
-            get { return Math.Min(HitObject.StartTime - LifetimeOffset, base.LifetimeStart); }
-            set { base.LifetimeStart = value; }
+            get { return lifetimeStart ?? HitObject.StartTime - LifetimeOffset; }
+            set { lifetimeStart = value; }
         }
 
+        private double? lifetimeEnd;
         public override double LifetimeEnd
         {
             get
             {
                 var endTime = (HitObject as IHasEndTime)?.EndTime ?? HitObject.StartTime;
-                return Math.Max(endTime + LifetimeOffset, base.LifetimeEnd);
+                return lifetimeEnd ?? endTime + LifetimeOffset;
             }
-            set { base.LifetimeEnd = value; }
+            set { lifetimeEnd = value; }
         }
 
         protected override void AddNested(DrawableHitObject<TObject, TJudgement> h)