Add "Argon" performance points counter

osu.Game/Screens/Play/HUD/ArgonPerformancePointsCounter.cs

@@ -1,9 +1,79 @@
 // 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.Bindables;
+using osu.Framework.Extensions.LocalisationExtensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Sprites;
+using osu.Game.Configuration;
+using osu.Game.Localisation.SkinComponents;
+using osu.Game.Resources.Localisation.Web;
+
 namespace osu.Game.Screens.Play.HUD
 {
     public partial class ArgonPerformancePointsCounter : PerformancePointsCounter
     {
+        private ArgonCounterTextComponent text = null!;
+
+        protected override double RollingDuration => 250;
+
+        private const float alpha_when_invalid = 0.3f;
+
+        [SettingSource("Wireframe opacity", "Controls the opacity of the wire frames behind the digits.")]
+        public BindableFloat WireframeOpacity { get; } = new BindableFloat(0.25f)
+        {
+            Precision = 0.01f,
+            MinValue = 0,
+            MaxValue = 1,
+        };
+
+        [SettingSource(typeof(SkinnableComponentStrings), nameof(SkinnableComponentStrings.ShowLabel), nameof(SkinnableComponentStrings.ShowLabelDescription))]
+        public Bindable<bool> ShowLabel { get; } = new BindableBool(true);
+
+        public override bool IsValid
+        {
+            get => base.IsValid;
+            set
+            {
+                if (value == IsValid)
+                    return;
+
+                base.IsValid = value;
+                text.FadeTo(value ? 1 : alpha_when_invalid, 1000, Easing.OutQuint);
+            }
+        }
+
+        public override int DisplayedCount
+        {
+            get => base.DisplayedCount;
+            set
+            {
+                base.DisplayedCount = value;
+                updateWireframe();
+            }
+        }
+
+        private void updateWireframe()
+        {
+            int digitsRequiredForDisplayCount = getDigitsRequiredForDisplayCount();
+
+            if (digitsRequiredForDisplayCount != text.WireframeTemplate.Length)
+                text.WireframeTemplate = new string('#', digitsRequiredForDisplayCount);
+        }
+
+        private int getDigitsRequiredForDisplayCount()
+        {
+            int digitsRequired = 1;
+            long c = DisplayedCount;
+            while ((c /= 10) > 0)
+                digitsRequired++;
+            return digitsRequired;
+        }
+
+        protected override IHasText CreateText() => text = new ArgonCounterTextComponent(Anchor.TopRight, BeatmapsetsStrings.ShowScoreboardHeaderspp.ToUpper())
+        {
+            WireframeOpacity = { BindTarget = WireframeOpacity },
+            ShowLabel = { BindTarget = ShowLabel },
+        };
     }
 }