Simplify and tidy sample retrieval

Less static weirdness

osu.Game.Rulesets.Taiko/UI/TaikoPlayfield.cs

@@ -62,7 +62,7 @@ public class TaikoPlayfield : ScrollingPlayfield, IKeyBindingHandler<TaikoAction
         private readonly Box background;
 
         private readonly ControlPointInfo controlPointInfo;
-        private Dictionary<double, Tuple<SampleChannel, SampleChannel>> allSamples;
+        private Dictionary<SampleControlPoint, Tuple<SampleChannel, SampleChannel>> drumSampleMappings;
 
         public TaikoPlayfield(ControlPointInfo controlPointInfo)
             : base(Axes.X)
@@ -207,12 +207,12 @@ public TaikoPlayfield(ControlPointInfo controlPointInfo)
         [BackgroundDependencyLoader]
         private void load(OsuColour colours, AudioManager audio)
         {
-            allSamples = new Dictionary<double, Tuple<SampleChannel, SampleChannel>>();
+            drumSampleMappings = new Dictionary<SampleControlPoint, Tuple<SampleChannel, SampleChannel>>();
             foreach (var s in controlPointInfo.SamplePoints)
             {
-                var normalSample = SampleInfo.FromSoundPoint(s).GetChannel(audio.Sample);
-                var clapSample = SampleInfo.FromSoundPoint(s, SampleInfo.HIT_CLAP).GetChannel(audio.Sample);
-                allSamples.Add(s.Time, new Tuple<SampleChannel, SampleChannel>(normalSample, clapSample));
+                var normalSample = s.GetSampleInfo().GetChannel(audio.Sample);
+                var clapSample = s.GetSampleInfo(SampleInfo.HIT_CLAP).GetChannel(audio.Sample);
+                drumSampleMappings.Add(s, new Tuple<SampleChannel, SampleChannel>(normalSample, clapSample));
             }
 
             overlayBackgroundContainer.BorderColour = colours.Gray0;
@@ -268,7 +268,9 @@ public override void OnJudgement(DrawableHitObject judgedObject, Judgement judge
                     {
                         topLevelHitContainer.Add(judgedObject.CreateProxy());
                     }
-                    catch { }
+                    catch
+                    {
+                    }
                 }
 
                 hitExplosionContainer.Add(new HitExplosion(judgedObject, isRim));
@@ -280,10 +282,9 @@ public override void OnJudgement(DrawableHitObject judgedObject, Judgement judge
 
         public bool OnPressed(TaikoAction action)
         {
-            var currentTime = Clock.CurrentTime;
-            var soundPoint = currentTime < controlPointInfo.SamplePoints[0].Time ? controlPointInfo.SamplePoints[0] : controlPointInfo.SamplePointAt(currentTime);
+            var samplePoint = controlPointInfo.SamplePointAt(Clock.CurrentTime);
 
-            if (!allSamples.TryGetValue(soundPoint.Time, out Tuple<SampleChannel, SampleChannel> samples))
+            if (!drumSampleMappings.TryGetValue(samplePoint, out var samples))
                 throw new InvalidOperationException("Current sample set not found.");
 
             if (action == TaikoAction.LeftCentre || action == TaikoAction.RightCentre)

osu.Game/Audio/SampleInfo.cs

@@ -5,7 +5,6 @@
 using osu.Framework.Audio;
 using osu.Framework.Audio.Sample;
 using osu.Framework.Configuration;
-using osu.Game.Beatmaps.ControlPoints;
 
 namespace osu.Game.Audio
 {
@@ -17,16 +16,6 @@ public class SampleInfo
         public const string HIT_NORMAL = @"hitnormal";
         public const string HIT_CLAP = @"hitclap";
 
-        public static SampleInfo FromSoundPoint(SampleControlPoint samplePoint, string sampleName = HIT_NORMAL)
-        {
-            return new SampleInfo
-            {
-                Bank = samplePoint.SampleBank,
-                Name = sampleName,
-                Volume = samplePoint.SampleVolume,
-            };
-        }
-
         public SampleChannel GetChannel(SampleManager manager)
         {
             var channel = manager.Get($"Gameplay/{Bank}-{Name}");

osu.Game/Beatmaps/ControlPoints/ControlPointInfo.cs

@@ -55,7 +55,7 @@ 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) => binarySearch(SamplePoints, time);
+        public SampleControlPoint SamplePointAt(double time) => binarySearch(SamplePoints, time, SamplePoints.FirstOrDefault());
 
         /// <summary>
         /// Finds the timing control point that is active at <paramref name="time"/>.

osu.Game/Beatmaps/ControlPoints/SampleControlPoint.cs

@@ -1,6 +1,8 @@
 // Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
+using osu.Game.Audio;
+
 namespace osu.Game.Beatmaps.ControlPoints
 {
     public class SampleControlPoint : ControlPoint
@@ -16,5 +18,17 @@ public class SampleControlPoint : ControlPoint
         /// The default sample volume at this control point.
         /// </summary>
         public int SampleVolume;
+
+        /// <summary>
+        /// Create a SampleInfo based on the sample settings in this control point.
+        /// </summary>
+        /// <param name="sampleName">The name of the same.</param>
+        /// <returns>A populated <see cref="SampleInfo"/>.</returns>
+        public SampleInfo GetSampleInfo(string sampleName = SampleInfo.HIT_NORMAL) => new SampleInfo
+        {
+            Bank = SampleBank,
+            Name = sampleName,
+            Volume = SampleVolume,
+        };
     }
 }