Merge branch 'master' into fix-legacy-score-multipliers-2

osu.Game.Rulesets.Osu/Objects/Drawables/DrawableSliderRepeat.cs

@@ -30,7 +30,7 @@ namespace osu.Game.Rulesets.Osu.Objects.Drawables
 
         public SkinnableDrawable CirclePiece { get; private set; }
 
-        public ReverseArrowPiece Arrow { get; private set; }
+        public SkinnableDrawable Arrow { get; private set; }
 
         private Drawable scaleContainer;
 
@@ -65,7 +65,11 @@ namespace osu.Game.Rulesets.Osu.Objects.Drawables
                         Anchor = Anchor.Centre,
                         Origin = Anchor.Centre,
                     },
-                    Arrow = new ReverseArrowPiece(),
+                    Arrow = new SkinnableDrawable(new OsuSkinComponentLookup(OsuSkinComponents.ReverseArrow), _ => new DefaultReverseArrow())
+                    {
+                        Anchor = Anchor.Centre,
+                        Origin = Anchor.Centre,
+                    },
                 }
             });
 

osu.Game.Rulesets.Osu/Skinning/Argon/ArgonReverseArrow.cs

@@ -4,10 +4,12 @@
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;
 using osu.Framework.Extensions.Color4Extensions;
+using osu.Framework.Extensions.ObjectExtensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
 using osu.Framework.Graphics.Sprites;
+using osu.Framework.Graphics.Textures;
 using osu.Game.Rulesets.Objects.Drawables;
 using osu.Game.Rulesets.Osu.Objects;
 using osuTK;
@@ -17,12 +19,17 @@ namespace osu.Game.Rulesets.Osu.Skinning.Argon
 {
     public partial class ArgonReverseArrow : CompositeDrawable
     {
+        [Resolved]
+        private DrawableHitObject drawableObject { get; set; } = null!;
+
         private Bindable<Color4> accentColour = null!;
 
         private SpriteIcon icon = null!;
+        private Container main = null!;
+        private Sprite side = null!;
 
         [BackgroundDependencyLoader]
-        private void load(DrawableHitObject hitObject)
+        private void load(TextureStore textures)
         {
             Anchor = Anchor.Centre;
             Origin = Anchor.Centre;
@@ -31,24 +38,73 @@ namespace osu.Game.Rulesets.Osu.Skinning.Argon
 
             InternalChildren = new Drawable[]
             {
-                new Circle
+                main = new Container
                 {
-                    Size = new Vector2(40, 20),
-                    Colour = Color4.White,
+                    RelativeSizeAxes = Axes.Both,
                     Anchor = Anchor.Centre,
                     Origin = Anchor.Centre,
+                    Children = new Drawable[]
+                    {
+                        new Circle
+                        {
+                            Size = new Vector2(40, 20),
+                            Colour = Color4.White,
+                            Anchor = Anchor.Centre,
+                            Origin = Anchor.Centre,
+                        },
+                        icon = new SpriteIcon
+                        {
+                            Icon = FontAwesome.Solid.AngleDoubleRight,
+                            Size = new Vector2(16),
+                            Anchor = Anchor.Centre,
+                            Origin = Anchor.Centre,
+                        },
+                    }
                 },
-                icon = new SpriteIcon
+                side = new Sprite
                 {
-                    Icon = FontAwesome.Solid.AngleDoubleRight,
-                    Size = new Vector2(16),
                     Anchor = Anchor.Centre,
                     Origin = Anchor.Centre,
-                },
+                    Texture = textures.Get("Gameplay/osu/repeat-edge-piece"),
+                    Size = new Vector2(ArgonMainCirclePiece.OUTER_GRADIENT_SIZE),
+                }
             };
 
-            accentColour = hitObject.AccentColour.GetBoundCopy();
+            accentColour = drawableObject.AccentColour.GetBoundCopy();
             accentColour.BindValueChanged(accent => icon.Colour = accent.NewValue.Darken(4), true);
+
+            drawableObject.ApplyCustomUpdateState += updateStateTransforms;
+        }
+
+        private void updateStateTransforms(DrawableHitObject hitObject, ArmedState state)
+        {
+            const float move_distance = -12;
+            const double move_out_duration = 35;
+            const double move_in_duration = 250;
+            const double total = 300;
+
+            switch (state)
+            {
+                case ArmedState.Idle:
+                    main.ScaleTo(1.3f, move_out_duration, Easing.Out)
+                        .Then()
+                        .ScaleTo(1f, move_in_duration, Easing.Out)
+                        .Loop(total - (move_in_duration + move_out_duration));
+                    side
+                        .MoveToX(move_distance, move_out_duration, Easing.Out)
+                        .Then()
+                        .MoveToX(0, move_in_duration, Easing.Out)
+                        .Loop(total - (move_in_duration + move_out_duration));
+                    break;
+            }
+        }
+
+        protected override void Dispose(bool isDisposing)
+        {
+            base.Dispose(isDisposing);
+
+            if (drawableObject.IsNotNull())
+                drawableObject.ApplyCustomUpdateState -= updateStateTransforms;
         }
     }
 }

osu.Game.Rulesets.Osu/Skinning/Default/DefaultReverseArrow.cs

@@ -0,0 +1,69 @@
+// 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.Extensions.ObjectExtensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Sprites;
+using osu.Game.Rulesets.Objects.Drawables;
+using osu.Game.Rulesets.Osu.Objects;
+using osuTK;
+
+namespace osu.Game.Rulesets.Osu.Skinning.Default
+{
+    public partial class DefaultReverseArrow : CompositeDrawable
+    {
+        [Resolved]
+        private DrawableHitObject drawableObject { get; set; } = null!;
+
+        public DefaultReverseArrow()
+        {
+            Anchor = Anchor.Centre;
+            Origin = Anchor.Centre;
+
+            Size = OsuHitObject.OBJECT_DIMENSIONS;
+
+            InternalChild = new SpriteIcon
+            {
+                RelativeSizeAxes = Axes.Both,
+                Blending = BlendingParameters.Additive,
+                Icon = FontAwesome.Solid.ChevronRight,
+                Size = new Vector2(0.35f),
+                Anchor = Anchor.Centre,
+                Origin = Anchor.Centre,
+            };
+        }
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            drawableObject.ApplyCustomUpdateState += updateStateTransforms;
+        }
+
+        private void updateStateTransforms(DrawableHitObject hitObject, ArmedState state)
+        {
+            const double move_out_duration = 35;
+            const double move_in_duration = 250;
+            const double total = 300;
+
+            switch (state)
+            {
+                case ArmedState.Idle:
+                    InternalChild.ScaleTo(1.3f, move_out_duration, Easing.Out)
+                                 .Then()
+                                 .ScaleTo(1f, move_in_duration, Easing.Out)
+                                 .Loop(total - (move_in_duration + move_out_duration));
+                    break;
+            }
+        }
+
+        protected override void Dispose(bool isDisposing)
+        {
+            base.Dispose(isDisposing);
+
+            if (drawableObject.IsNotNull())
+                drawableObject.ApplyCustomUpdateState -= updateStateTransforms;
+        }
+    }
+}

osu.Game.Rulesets.Osu/Skinning/Default/ReverseArrowPiece.cs

@@ -1,51 +0,0 @@
-// 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.Audio.Track;
-using osu.Framework.Graphics;
-using osu.Framework.Graphics.Sprites;
-using osu.Game.Beatmaps.ControlPoints;
-using osu.Game.Graphics.Containers;
-using osu.Game.Rulesets.Objects.Drawables;
-using osu.Game.Rulesets.Osu.Objects;
-using osu.Game.Skinning;
-using osuTK;
-
-namespace osu.Game.Rulesets.Osu.Skinning.Default
-{
-    public partial class ReverseArrowPiece : BeatSyncedContainer
-    {
-        [Resolved]
-        private DrawableHitObject drawableRepeat { get; set; } = null!;
-
-        public ReverseArrowPiece()
-        {
-            Divisor = 2;
-            MinimumBeatLength = 200;
-
-            Anchor = Anchor.Centre;
-            Origin = Anchor.Centre;
-
-            Size = OsuHitObject.OBJECT_DIMENSIONS;
-
-            Child = new SkinnableDrawable(new OsuSkinComponentLookup(OsuSkinComponents.ReverseArrow), _ => new SpriteIcon
-            {
-                RelativeSizeAxes = Axes.Both,
-                Blending = BlendingParameters.Additive,
-                Icon = FontAwesome.Solid.ChevronRight,
-                Size = new Vector2(0.35f)
-            })
-            {
-                Anchor = Anchor.Centre,
-                Origin = Anchor.Centre,
-            };
-        }
-
-        protected override void OnNewBeat(int beatIndex, TimingControlPoint timingPoint, EffectControlPoint effectPoint, ChannelAmplitudes amplitudes)
-        {
-            if (!drawableRepeat.IsHit)
-                Child.ScaleTo(1.3f).ScaleTo(1f, timingPoint.BeatLength, Easing.Out);
-        }
-    }
-}

osu.Game.Rulesets.Osu/Skinning/Legacy/LegacyReverseArrow.cs

@@ -4,6 +4,7 @@
 using System.Diagnostics;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;
+using osu.Framework.Extensions.ObjectExtensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Game.Rulesets.Objects.Drawables;
@@ -16,8 +17,8 @@ namespace osu.Game.Rulesets.Osu.Skinning.Legacy
 {
     public partial class LegacyReverseArrow : CompositeDrawable
     {
-        [Resolved(canBeNull: true)]
-        private DrawableHitObject? drawableHitObject { get; set; }
+        [Resolved]
+        private DrawableHitObject drawableObject { get; set; } = null!;
 
         private Drawable proxy = null!;
 
@@ -27,6 +28,8 @@ namespace osu.Game.Rulesets.Osu.Skinning.Legacy
 
         private Drawable arrow = null!;
 
+        private bool shouldRotate;
+
         [BackgroundDependencyLoader]
         private void load(ISkinSource skinSource)
         {
@@ -36,8 +39,17 @@ namespace osu.Game.Rulesets.Osu.Skinning.Legacy
 
             var skin = skinSource.FindProvider(s => s.GetTexture(lookupName) != null);
 
-            InternalChild = arrow = (skin?.GetAnimation(lookupName, true, true, maxSize: OsuHitObject.OBJECT_DIMENSIONS) ?? Empty());
+            InternalChild = arrow = (skin?.GetAnimation(lookupName, true, true, maxSize: OsuHitObject.OBJECT_DIMENSIONS) ?? Empty()).With(d =>
+            {
+                d.Anchor = Anchor.Centre;
+                d.Origin = Anchor.Centre;
+            });
+
             textureIsDefaultSkin = skin is ISkinTransformer transformer && transformer.Skin is DefaultLegacySkin;
+
+            drawableObject.ApplyCustomUpdateState += updateStateTransforms;
+
+            shouldRotate = skinSource.GetConfig<SkinConfiguration.LegacySetting, decimal>(SkinConfiguration.LegacySetting.Version)?.Value <= 1;
         }
 
         protected override void LoadComplete()
@@ -46,17 +58,14 @@ namespace osu.Game.Rulesets.Osu.Skinning.Legacy
 
             proxy = CreateProxy();
 
-            if (drawableHitObject != null)
-            {
-                drawableHitObject.HitObjectApplied += onHitObjectApplied;
-                onHitObjectApplied(drawableHitObject);
+            drawableObject.HitObjectApplied += onHitObjectApplied;
+            onHitObjectApplied(drawableObject);
 
-                accentColour = drawableHitObject.AccentColour.GetBoundCopy();
-                accentColour.BindValueChanged(c =>
-                {
-                    arrow.Colour = textureIsDefaultSkin && c.NewValue.R + c.NewValue.G + c.NewValue.B > (600 / 255f) ? Color4.Black : Color4.White;
-                }, true);
-            }
+            accentColour = drawableObject.AccentColour.GetBoundCopy();
+            accentColour.BindValueChanged(c =>
+            {
+                arrow.Colour = textureIsDefaultSkin && c.NewValue.R + c.NewValue.G + c.NewValue.B > (600 / 255f) ? Color4.Black : Color4.White;
+            }, true);
         }
 
         private void onHitObjectApplied(DrawableHitObject drawableObject)
@@ -68,11 +77,43 @@ namespace osu.Game.Rulesets.Osu.Skinning.Legacy
                                                     .OverlayElementContainer.Add(proxy);
         }
 
+        private void updateStateTransforms(DrawableHitObject hitObject, ArmedState state)
+        {
+            const double duration = 300;
+            const float rotation = 5.625f;
+
+            switch (state)
+            {
+                case ArmedState.Idle:
+                    if (shouldRotate)
+                    {
+                        InternalChild.ScaleTo(1.3f)
+                                     .RotateTo(rotation)
+                                     .Then()
+                                     .ScaleTo(1f, duration)
+                                     .RotateTo(-rotation, duration)
+                                     .Loop();
+                    }
+                    else
+                    {
+                        InternalChild.ScaleTo(1.3f).Then()
+                                     .ScaleTo(1f, duration, Easing.Out)
+                                     .Loop();
+                    }
+
+                    break;
+            }
+        }
+
         protected override void Dispose(bool isDisposing)
         {
             base.Dispose(isDisposing);
-            if (drawableHitObject != null)
-                drawableHitObject.HitObjectApplied -= onHitObjectApplied;
+
+            if (drawableObject.IsNotNull())
+            {
+                drawableObject.HitObjectApplied -= onHitObjectApplied;
+                drawableObject.ApplyCustomUpdateState -= updateStateTransforms;
+            }
         }
     }
 }

osu.Game.Tests/Database/LegacyBeatmapImporterTest.cs

@@ -44,17 +44,23 @@ namespace osu.Game.Tests.Database
                 createFile(subdirectory2, Path.Combine("beatmap5", "beatmap.osu"));
                 createFile(subdirectory2, Path.Combine("beatmap6", "beatmap.osu"));
 
+                // songs subdirectory with random file
+                var subdirectory3 = songsStorage.GetStorageForDirectory("subdirectory3");
+                createFile(subdirectory3, "silly readme.txt");
+                createFile(subdirectory3, Path.Combine("beatmap7", "beatmap.osu"));
+
                 // empty songs subdirectory
                 songsStorage.GetStorageForDirectory("subdirectory3");
 
                 string[] paths = importer.GetStableImportPaths(songsStorage).ToArray();
-                Assert.That(paths.Length, Is.EqualTo(6));
+                Assert.That(paths.Length, Is.EqualTo(7));
                 Assert.That(paths.Contains(songsStorage.GetFullPath("beatmap1")));
                 Assert.That(paths.Contains(songsStorage.GetFullPath(Path.Combine("subdirectory", "beatmap2"))));
                 Assert.That(paths.Contains(songsStorage.GetFullPath(Path.Combine("subdirectory", "beatmap3"))));
                 Assert.That(paths.Contains(songsStorage.GetFullPath(Path.Combine("subdirectory", "sub-subdirectory", "beatmap4"))));
                 Assert.That(paths.Contains(songsStorage.GetFullPath(Path.Combine("subdirectory2", "beatmap5"))));
                 Assert.That(paths.Contains(songsStorage.GetFullPath(Path.Combine("subdirectory2", "beatmap6"))));
+                Assert.That(paths.Contains(songsStorage.GetFullPath(Path.Combine("subdirectory3", "beatmap7"))));
             }
 
             static void createFile(Storage storage, string path)

osu.Game.Tests/Skins/SkinDeserialisationTest.cs

@@ -52,7 +52,9 @@ namespace osu.Game.Tests.Skins
             // Covers player avatar and flag.
             "Archives/modified-argon-20230305.osk",
             // Covers key counters
-            "Archives/modified-argon-pro-20230618.osk"
+            "Archives/modified-argon-pro-20230618.osk",
+            // Covers "Argon" health display
+            "Archives/modified-argon-pro-20231001.osk"
         };
 
         /// <summary>

osu.Game.Tests/Visual/Gameplay/TestSceneArgonHealthDisplay.cs

@@ -0,0 +1,78 @@
+// 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 NUnit.Framework;
+using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Shapes;
+using osu.Framework.Testing;
+using osu.Game.Rulesets.Judgements;
+using osu.Game.Rulesets.Objects;
+using osu.Game.Rulesets.Osu.Judgements;
+using osu.Game.Rulesets.Osu.Objects;
+using osu.Game.Rulesets.Scoring;
+using osu.Game.Screens.Play.HUD;
+using osuTK;
+using osuTK.Graphics;
+
+namespace osu.Game.Tests.Visual.Gameplay
+{
+    public partial class TestSceneArgonHealthDisplay : OsuTestScene
+    {
+        [Cached(typeof(HealthProcessor))]
+        private HealthProcessor healthProcessor = new DrainingHealthProcessor(0);
+
+        [SetUpSteps]
+        public void SetUpSteps()
+        {
+            AddStep(@"Reset all", delegate
+            {
+                healthProcessor.Health.Value = 1;
+                healthProcessor.Failed += () => false; // health won't be updated if the processor gets into a "fail" state.
+
+                Children = new Drawable[]
+                {
+                    new Box
+                    {
+                        RelativeSizeAxes = Axes.Both,
+                        Colour = Color4.Gray,
+                    },
+                    new ArgonHealthDisplay
+                    {
+                        Anchor = Anchor.Centre,
+                        Origin = Anchor.Centre,
+                        Scale = new Vector2(2f),
+                    },
+                };
+            });
+        }
+
+        [Test]
+        public void TestHealthDisplayIncrementing()
+        {
+            AddRepeatStep("apply miss judgement", delegate
+            {
+                healthProcessor.ApplyResult(new JudgementResult(new HitObject(), new Judgement()) { Type = HitResult.Miss });
+            }, 5);
+
+            AddRepeatStep(@"decrease hp slightly", delegate
+            {
+                healthProcessor.Health.Value -= 0.01f;
+            }, 10);
+
+            AddRepeatStep(@"increase hp without flash", delegate
+            {
+                healthProcessor.Health.Value += 0.1f;
+            }, 3);
+
+            AddRepeatStep(@"increase hp with flash", delegate
+            {
+                healthProcessor.Health.Value += 0.1f;
+                healthProcessor.ApplyResult(new JudgementResult(new HitCircle(), new OsuJudgement())
+                {
+                    Type = HitResult.Perfect
+                });
+            }, 3);
+        }
+    }
+}

osu.Game.Tests/Visual/Gameplay/TestSceneSkinnableHealthDisplay.cs

@@ -6,6 +6,7 @@ using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Testing;
 using osu.Game.Rulesets.Judgements;
+using osu.Game.Rulesets.Objects;
 using osu.Game.Rulesets.Osu.Judgements;
 using osu.Game.Rulesets.Osu.Objects;
 using osu.Game.Rulesets.Scoring;
@@ -19,6 +20,7 @@ namespace osu.Game.Tests.Visual.Gameplay
         [Cached(typeof(HealthProcessor))]
         private HealthProcessor healthProcessor = new DrainingHealthProcessor(0);
 
+        protected override Drawable CreateArgonImplementation() => new ArgonHealthDisplay();
         protected override Drawable CreateDefaultImplementation() => new DefaultHealthDisplay();
         protected override Drawable CreateLegacyImplementation() => new LegacyHealthDisplay();
 
@@ -28,15 +30,21 @@ namespace osu.Game.Tests.Visual.Gameplay
             AddStep(@"Reset all", delegate
             {
                 healthProcessor.Health.Value = 1;
+                healthProcessor.Failed += () => false; // health won't be updated if the processor gets into a "fail" state.
             });
         }
 
         [Test]
         public void TestHealthDisplayIncrementing()
         {
-            AddRepeatStep(@"decrease hp", delegate
+            AddRepeatStep("apply miss judgement", delegate
             {
-                healthProcessor.Health.Value -= 0.08f;
+                healthProcessor.ApplyResult(new JudgementResult(new HitObject(), new Judgement()) { Type = HitResult.Miss });
+            }, 5);
+
+            AddRepeatStep(@"decrease hp slightly", delegate
+            {
+                healthProcessor.Health.Value -= 0.01f;
             }, 10);
 
             AddRepeatStep(@"increase hp without flash", delegate
@@ -54,4 +62,4 @@ namespace osu.Game.Tests.Visual.Gameplay
             }, 3);
         }
     }
-}
+}

osu.Game/Database/LegacyBeatmapImporter.cs

@@ -4,7 +4,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using osu.Framework.IO.Stores;
 using osu.Framework.Logging;
 using osu.Framework.Platform;
 using osu.Game.Beatmaps;
@@ -34,9 +33,9 @@ namespace osu.Game.Database
 
                     try
                     {
-                        if (!directoryStorage.GetFiles(string.Empty).ExcludeSystemFileNames().Any())
+                        if (!directoryStorage.GetFiles(string.Empty, "*.osu").Any())
                         {
-                            // if a directory doesn't contain files, attempt looking for beatmaps inside of that directory.
+                            // if a directory doesn't contain any beatmap files, look for further nested beatmap directories.
                             // this is a special behaviour in stable for beatmaps only, see https://github.com/ppy/osu/issues/18615.
                             foreach (string subDirectory in GetStableImportPaths(directoryStorage))
                                 paths.Add(subDirectory);

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

@@ -0,0 +1,323 @@
+// 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;
+using System.Collections.Generic;
+using System.Linq;
+using osu.Framework.Allocation;
+using osu.Framework.Extensions.Color4Extensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Colour;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Lines;
+using osu.Framework.Graphics.Shapes;
+using osu.Framework.Threading;
+using osu.Framework.Utils;
+using osu.Game.Graphics;
+using osu.Game.Rulesets.Judgements;
+using osu.Game.Rulesets.Objects;
+using osu.Game.Rulesets.Objects.Types;
+using osu.Game.Skinning;
+using osuTK;
+using osuTK.Graphics;
+
+namespace osu.Game.Screens.Play.HUD
+{
+    public partial class ArgonHealthDisplay : HealthDisplay, ISerialisableDrawable
+    {
+        public bool UsesFixedAnchor { get; set; }
+
+        private BarPath mainBar = null!;
+
+        /// <summary>
+        /// Used to show a glow at the end of the main bar, or red "damage" area when missing.
+        /// </summary>
+        private BarPath glowBar = null!;
+
+        private BackgroundPath background = null!;
+
+        private SliderPath barPath = null!;
+
+        private static readonly Colour4 main_bar_colour = Colour4.White;
+        private static readonly Colour4 main_bar_glow_colour = Color4Extensions.FromHex("#7ED7FD").Opacity(0.5f);
+
+        private ScheduledDelegate? resetMissBarDelegate;
+
+        private readonly List<Vector2> missBarVertices = new List<Vector2>();
+        private readonly List<Vector2> healthBarVertices = new List<Vector2>();
+
+        private double glowBarValue = 1;
+
+        public double GlowBarValue
+        {
+            get => glowBarValue;
+            set
+            {
+                if (glowBarValue == value)
+                    return;
+
+                glowBarValue = value;
+                updatePathVertices();
+            }
+        }
+
+        private double healthBarValue = 1;
+
+        public double HealthBarValue
+        {
+            get => healthBarValue;
+            set
+            {
+                if (healthBarValue == value)
+                    return;
+
+                healthBarValue = value;
+                updatePathVertices();
+            }
+        }
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            AutoSizeAxes = Axes.Both;
+
+            InternalChild = new FillFlowContainer
+            {
+                AutoSizeAxes = Axes.Both,
+                Direction = FillDirection.Horizontal,
+                Spacing = new Vector2(4f, 0f),
+                Children = new Drawable[]
+                {
+                    new Circle
+                    {
+                        Margin = new MarginPadding { Top = 8.5f, Left = -2 },
+                        Size = new Vector2(50f, 3f),
+                    },
+                    new Container
+                    {
+                        AutoSizeAxes = Axes.Both,
+                        Children = new Drawable[]
+                        {
+                            background = new BackgroundPath
+                            {
+                                PathRadius = 10f,
+                            },
+                            glowBar = new BarPath
+                            {
+                                BarColour = Color4.White,
+                                GlowColour = OsuColour.Gray(0.5f),
+                                Blending = BlendingParameters.Additive,
+                                Colour = ColourInfo.GradientHorizontal(Color4.White.Opacity(0.8f), Color4.White),
+                                PathRadius = 40f,
+                                // Kinda hacky, but results in correct positioning with increased path radius.
+                                Margin = new MarginPadding(-30f),
+                                GlowPortion = 0.9f,
+                            },
+                            mainBar = new BarPath
+                            {
+                                AutoSizeAxes = Axes.None,
+                                RelativeSizeAxes = Axes.Both,
+                                Blending = BlendingParameters.Additive,
+                                BarColour = main_bar_colour,
+                                GlowColour = main_bar_glow_colour,
+                                PathRadius = 10f,
+                                GlowPortion = 0.6f,
+                            },
+                        }
+                    }
+                },
+            };
+
+            updatePath();
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            Current.BindValueChanged(v =>
+            {
+                if (v.NewValue >= GlowBarValue)
+                    finishMissDisplay();
+
+                this.TransformTo(nameof(HealthBarValue), v.NewValue, 300, Easing.OutQuint);
+                if (resetMissBarDelegate == null)
+                    this.TransformTo(nameof(GlowBarValue), v.NewValue, 300, Easing.OutQuint);
+            }, true);
+        }
+
+        protected override void Update()
+        {
+            base.Update();
+
+            mainBar.Alpha = (float)Interpolation.DampContinuously(mainBar.Alpha, Current.Value > 0 ? 1 : 0, 40, Time.Elapsed);
+            glowBar.Alpha = (float)Interpolation.DampContinuously(glowBar.Alpha, GlowBarValue > 0 ? 1 : 0, 40, Time.Elapsed);
+        }
+
+        protected override void Flash(JudgementResult result)
+        {
+            base.Flash(result);
+
+            mainBar.TransformTo(nameof(BarPath.GlowColour), main_bar_glow_colour.Opacity(0.8f))
+                   .TransformTo(nameof(BarPath.GlowColour), main_bar_glow_colour, 300, Easing.OutQuint);
+
+            if (resetMissBarDelegate == null)
+            {
+                glowBar.TransformTo(nameof(BarPath.BarColour), Colour4.White, 100, Easing.OutQuint)
+                       .Then()
+                       .TransformTo(nameof(BarPath.BarColour), main_bar_colour, 800, Easing.OutQuint);
+
+                glowBar.TransformTo(nameof(BarPath.GlowColour), Colour4.White)
+                       .TransformTo(nameof(BarPath.GlowColour), main_bar_glow_colour, 800, Easing.OutQuint);
+            }
+        }
+
+        protected override void Miss(JudgementResult result)
+        {
+            base.Miss(result);
+
+            if (resetMissBarDelegate != null)
+            {
+                resetMissBarDelegate.Cancel();
+                resetMissBarDelegate = null;
+            }
+            else
+            {
+                // Reset any ongoing animation immediately, else things get weird.
+                this.TransformTo(nameof(GlowBarValue), HealthBarValue);
+            }
+
+            this.Delay(500).Schedule(() =>
+            {
+                this.TransformTo(nameof(GlowBarValue), Current.Value, 300, Easing.OutQuint);
+                finishMissDisplay();
+            }, out resetMissBarDelegate);
+
+            glowBar.TransformTo(nameof(BarPath.BarColour), new Colour4(255, 147, 147, 255), 100, Easing.OutQuint).Then()
+                   .TransformTo(nameof(BarPath.BarColour), new Colour4(255, 93, 93, 255), 800, Easing.OutQuint);
+
+            glowBar.TransformTo(nameof(BarPath.GlowColour), new Colour4(253, 0, 0, 255).Lighten(0.2f))
+                   .TransformTo(nameof(BarPath.GlowColour), new Colour4(253, 0, 0, 255), 800, Easing.OutQuint);
+        }
+
+        private void finishMissDisplay()
+        {
+            if (Current.Value > 0)
+            {
+                glowBar.TransformTo(nameof(BarPath.BarColour), main_bar_colour, 300, Easing.In);
+                glowBar.TransformTo(nameof(BarPath.GlowColour), main_bar_glow_colour, 300, Easing.In);
+            }
+
+            resetMissBarDelegate?.Cancel();
+            resetMissBarDelegate = null;
+        }
+
+        private void updatePath()
+        {
+            const float curve_start = 280;
+            const float curve_end = 310;
+            const float curve_smoothness = 10;
+
+            const float bar_length = 350;
+            const float bar_verticality = 32.5f;
+
+            Vector2 diagonalDir = (new Vector2(curve_end, bar_verticality) - new Vector2(curve_start, 0)).Normalized();
+
+            barPath = new SliderPath(new[]
+            {
+                new PathControlPoint(new Vector2(0, 0), PathType.Linear),
+                new PathControlPoint(new Vector2(curve_start - curve_smoothness, 0), PathType.Bezier),
+                new PathControlPoint(new Vector2(curve_start, 0)),
+                new PathControlPoint(new Vector2(curve_start, 0) + diagonalDir * curve_smoothness, PathType.Linear),
+                new PathControlPoint(new Vector2(curve_end, bar_verticality) - diagonalDir * curve_smoothness, PathType.Bezier),
+                new PathControlPoint(new Vector2(curve_end, bar_verticality)),
+                new PathControlPoint(new Vector2(curve_end + curve_smoothness, bar_verticality), PathType.Linear),
+                new PathControlPoint(new Vector2(bar_length, bar_verticality)),
+            });
+
+            List<Vector2> vertices = new List<Vector2>();
+            barPath.GetPathToProgress(vertices, 0.0, 1.0);
+
+            background.Vertices = vertices;
+            mainBar.Vertices = vertices;
+            glowBar.Vertices = vertices;
+
+            updatePathVertices();
+        }
+
+        private void updatePathVertices()
+        {
+            barPath.GetPathToProgress(healthBarVertices, 0.0, healthBarValue);
+            barPath.GetPathToProgress(missBarVertices, healthBarValue, Math.Max(glowBarValue, healthBarValue));
+
+            if (healthBarVertices.Count == 0)
+                healthBarVertices.Add(Vector2.Zero);
+
+            if (missBarVertices.Count == 0)
+                missBarVertices.Add(Vector2.Zero);
+
+            glowBar.Vertices = missBarVertices.Select(v => v - missBarVertices[0]).ToList();
+            glowBar.Position = missBarVertices[0];
+
+            mainBar.Vertices = healthBarVertices.Select(v => v - healthBarVertices[0]).ToList();
+            mainBar.Position = healthBarVertices[0];
+        }
+
+        private partial class BackgroundPath : SmoothPath
+        {
+            protected override Color4 ColourAt(float position)
+            {
+                if (position <= 0.128f)
+                    return Color4.White.Opacity(0.8f);
+
+                return Interpolation.ValueAt(position,
+                    Color4.White.Opacity(0.8f),
+                    Color4.Black.Opacity(0.2f),
+                    -0.5f, 1f, Easing.OutQuint);
+            }
+        }
+
+        private partial class BarPath : SmoothPath
+        {
+            private Colour4 barColour;
+
+            public Colour4 BarColour
+            {
+                get => barColour;
+                set
+                {
+                    if (barColour == value)
+                        return;
+
+                    barColour = value;
+                    InvalidateTexture();
+                }
+            }
+
+            private Colour4 glowColour;
+
+            public Colour4 GlowColour
+            {
+                get => glowColour;
+                set
+                {
+                    if (glowColour == value)
+                        return;
+
+                    glowColour = value;
+                    InvalidateTexture();
+                }
+            }
+
+            public float GlowPortion { get; init; }
+
+            protected override Color4 ColourAt(float position)
+            {
+                if (position >= GlowPortion)
+                    return BarColour;
+
+                return Interpolation.ValueAt(position, Colour4.Black.Opacity(0.0f), GlowColour, 0.0, GlowPortion, Easing.InQuint);
+            }
+        }
+    }
+}

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

@@ -29,10 +29,22 @@ namespace osu.Game.Screens.Play.HUD
             MaxValue = 1
         };
 
+        /// <summary>
+        /// Triggered when a <see cref="Judgement"/> is a successful hit, signaling the health display to perform a flash animation (if designed to do so).
+        /// </summary>
+        /// <param name="result">The judgement result.</param>
         protected virtual void Flash(JudgementResult result)
         {
         }
 
+        /// <summary>
+        /// Triggered when a <see cref="Judgement"/> resulted in the player losing health.
+        /// </summary>
+        /// <param name="result">The judgement result.</param>
+        protected virtual void Miss(JudgementResult result)
+        {
+        }
+
         [Resolved]
         private HUDOverlay? hudOverlay { get; set; }
 
@@ -54,6 +66,8 @@ namespace osu.Game.Screens.Play.HUD
         {
             if (judgement.IsHit && judgement.Type != HitResult.IgnoreHit)
                 Flash(judgement);
+            else if (judgement.Judgement.HealthIncreaseFor(judgement) < 0)
+                Miss(judgement);
         }
 
         protected override void Dispose(bool isDisposing)

osu.Game/osu.Game.csproj

@@ -37,7 +37,7 @@
     </PackageReference>
     <PackageReference Include="Realm" Version="11.5.0" />
     <PackageReference Include="ppy.osu.Framework" Version="2023.922.0" />
-    <PackageReference Include="ppy.osu.Game.Resources" Version="2023.928.0" />
+    <PackageReference Include="ppy.osu.Game.Resources" Version="2023.1003.0" />
     <PackageReference Include="Sentry" Version="3.39.1" />
     <PackageReference Include="SharpCompress" Version="0.33.0" />
     <PackageReference Include="NUnit" Version="3.13.3" />