From 3823bd8343d7ae3a8e8281ce154cdd6a05031e09 Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Sun, 19 Jul 2020 14:11:21 +0900
Subject: [PATCH] Add back missing default implementations for lookup functions

---
 osu.Game/Beatmaps/ControlPoints/ControlPointInfo.cs   | 4 ++--
 osu.Game/Beatmaps/ControlPoints/SampleControlPoint.cs | 6 ++++++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/osu.Game/Beatmaps/ControlPoints/ControlPointInfo.cs b/osu.Game/Beatmaps/ControlPoints/ControlPointInfo.cs
index 55a04e5ee8..e7788b75f3 100644
--- a/osu.Game/Beatmaps/ControlPoints/ControlPointInfo.cs
+++ b/osu.Game/Beatmaps/ControlPoints/ControlPointInfo.cs
@@ -78,14 +78,14 @@ public class ControlPointInfo
         /// </summary>
         /// <param name="time">The time to find the sound control point at.</param>
         /// <returns>The sound control point.</returns>
-        public SampleControlPoint SamplePointAt(double time) => binarySearchWithFallback(SamplePoints, time, SamplePoints.Count > 0 ? SamplePoints[0] : null);
+        public SampleControlPoint SamplePointAt(double time) => binarySearchWithFallback(SamplePoints, time, SamplePoints.Count > 0 ? SamplePoints[0] : SampleControlPoint.DEFAULT);
 
         /// <summary>
         /// Finds the timing control point that is active at <paramref name="time"/>.
         /// </summary>
         /// <param name="time">The time to find the timing control point at.</param>
         /// <returns>The timing control point.</returns>
-        public TimingControlPoint TimingPointAt(double time) => binarySearchWithFallback(TimingPoints, time, TimingPoints.Count > 0 ? TimingPoints[0] : null);
+        public TimingControlPoint TimingPointAt(double time) => binarySearchWithFallback(TimingPoints, time, TimingPoints.Count > 0 ? TimingPoints[0] : TimingControlPoint.DEFAULT);
 
         /// <summary>
         /// Finds the maximum BPM represented by any timing control point.
diff --git a/osu.Game/Beatmaps/ControlPoints/SampleControlPoint.cs b/osu.Game/Beatmaps/ControlPoints/SampleControlPoint.cs
index 61851a00d7..c052c04ea0 100644
--- a/osu.Game/Beatmaps/ControlPoints/SampleControlPoint.cs
+++ b/osu.Game/Beatmaps/ControlPoints/SampleControlPoint.cs
@@ -10,6 +10,12 @@ public class SampleControlPoint : ControlPoint
     {
         public const string DEFAULT_BANK = "normal";
 
+        public static readonly SampleControlPoint DEFAULT = new SampleControlPoint
+        {
+            SampleBankBindable = { Disabled = true },
+            SampleVolumeBindable = { Disabled = true }
+        };
+
         /// <summary>
         /// The default sample bank at this control point.
         /// </summary>