Split score counter class into two distinct classes to simplify usages

osu.Game/Graphics/UserInterface/CommaSeparatedScoreCounter.cs

@@ -0,0 +1,24 @@
+// 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.Framework.Extensions.LocalisationExtensions;
+using osu.Framework.Graphics;
+using osu.Framework.Localisation;
+using osu.Game.Graphics.Sprites;
+
+namespace osu.Game.Graphics.UserInterface
+{
+    public abstract class CommaSeparatedScoreCounter : RollingCounter<double>
+    {
+        protected override double RollingDuration => 1000;
+        protected override Easing RollingEasing => Easing.Out;
+
+        protected override double GetProportionalDuration(double currentValue, double newValue) =>
+            currentValue > newValue ? currentValue - newValue : newValue - currentValue;
+
+        protected override LocalisableString FormatCount(double count) => ((long)count).ToLocalisableString(@"N0");
+
+        protected override OsuSpriteText CreateSpriteText()
+            => base.CreateSpriteText().With(s => s.Font = s.Font.With(fixedWidth: true));
+    }
+}