Move Palpable* to separate files

osu.Game.Rulesets.Catch/Objects/Drawables/DrawablePalpableCatchHitObject.cs

@@ -0,0 +1,44 @@
+// 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 System.Collections.Generic;
+using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osuTK;
+using osuTK.Graphics;
+
+namespace osu.Game.Rulesets.Catch.Objects.Drawables
+{
+    public abstract class DrawablePalpableCatchHitObject : DrawableCatchHitObject
+    {
+        protected Container ScaleContainer { get; private set; }
+
+        protected DrawablePalpableCatchHitObject(CatchHitObject hitObject)
+            : base(hitObject)
+        {
+            Origin = Anchor.Centre;
+            Size = new Vector2(CatchHitObject.OBJECT_RADIUS * 2);
+            Masking = false;
+        }
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            AddRangeInternal(new Drawable[]
+            {
+                ScaleContainer = new Container
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    Origin = Anchor.Centre,
+                    Anchor = Anchor.Centre,
+                }
+            });
+
+            ScaleContainer.Scale = new Vector2(HitObject.Scale);
+        }
+
+        protected override Color4 GetComboColour(IReadOnlyList<Color4> comboColours) =>
+            comboColours[(HitObject.IndexInBeatmap + 1) % comboColours.Count];
+    }
+}