From b6a6db1160342731d21f0da0645f1d0303461214 Mon Sep 17 00:00:00 2001
From: mk56-spn <darioheadleysilva@gmail.com>
Date: Mon, 5 Dec 2022 12:29:23 +0100
Subject: [PATCH] Add dynamic BPM counter to SkinEditor

---
 osu.Game/Screens/Play/HUD/BPMCounter.cs | 52 +++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 osu.Game/Screens/Play/HUD/BPMCounter.cs

diff --git a/osu.Game/Screens/Play/HUD/BPMCounter.cs b/osu.Game/Screens/Play/HUD/BPMCounter.cs
new file mode 100644
index 0000000000..fec36f915d
--- /dev/null
+++ b/osu.Game/Screens/Play/HUD/BPMCounter.cs
@@ -0,0 +1,52 @@
+// 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.Allocation;
+using osu.Framework.Bindables;
+using osu.Framework.Graphics;
+using osu.Framework.Localisation;
+using osu.Game.Beatmaps;
+using osu.Game.Graphics;
+using osu.Game.Graphics.Sprites;
+using osu.Game.Graphics.UserInterface;
+using osu.Game.Skinning;
+
+namespace osu.Game.Screens.Play.HUD
+{
+    public partial class BPMCounter : RollingCounter<double>, ISkinnableDrawable
+    {
+        [Resolved]
+        private IBindable<WorkingBeatmap> beatmap { get; set; } = null!;
+
+        [Resolved]
+        protected IGameplayClock GameplayClock { get; private set; } = null!;
+
+        [BackgroundDependencyLoader]
+        private void load(OsuColour colour)
+        {
+            Colour = colour.BlueLighter;
+            Current.Value = DisplayedCount = 0;
+        }
+
+        protected override void Update()
+        {
+            base.Update();
+
+            //We dont want it going to 0 when we pause. so we block the updates
+            if (GameplayClock.IsPaused.Value) return;
+
+            // We want to check Rate every update to cover windup/down
+            Current.Value = beatmap.Value.Beatmap.ControlPointInfo.TimingPointAt(GameplayClock.CurrentTime).BPM * GameplayClock.Rate;
+        }
+
+        protected override OsuSpriteText CreateSpriteText()
+            => base.CreateSpriteText().With(s => s.Font = s.Font.With(size: 20f, fixedWidth: true));
+
+        protected override LocalisableString FormatCount(double count)
+        {
+            return $@"{count:0} BPM";
+        }
+
+        public bool UsesFixedAnchor { get; set; }
+    }
+}