Combine hit types and remove old drumroll hits using a more efficient method

osu.Game.Rulesets.Taiko/Objects/Drawables/DrawableFlyingHit.cs

@@ -0,0 +1,26 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Game.Beatmaps;
+using osu.Game.Beatmaps.ControlPoints;
+
+namespace osu.Game.Rulesets.Taiko.Objects.Drawables
+{
+    /// <summary>
+    /// A hit used specifically for drum rolls, where spawning flying hits is required.
+    /// </summary>
+    public class DrawableFlyingHit : DrawableHit
+    {
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+            ApplyResult(r => r.Type = r.Judgement.MaxResult);
+        }
+
+        public DrawableFlyingHit(double time, bool isStrong = false)
+            : base(new IgnoreHit { StartTime = time, IsStrong = isStrong })
+        {
+            HitObject.ApplyDefaults(new ControlPointInfo(), new BeatmapDifficulty());
+        }
+    }
+}