Merge branch 'master' into allow-loading-layer-scrolling

osu.Android.props

@@ -54,6 +54,6 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="ppy.osu.Game.Resources" Version="2019.1230.0" />
-    <PackageReference Include="ppy.osu.Framework.Android" Version="2019.1227.1" />
+    <PackageReference Include="ppy.osu.Framework.Android" Version="2020.103.0" />
   </ItemGroup>
 </Project>

osu.Game.Rulesets.Catch.Tests/osu.Game.Rulesets.Catch.Tests.csproj

@@ -4,7 +4,7 @@
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.16.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
     <PackageReference Update="Microsoft.EntityFrameworkCore.Sqlite" Version="2.1.4" />
   </ItemGroup>
   <PropertyGroup Label="Project">

osu.Game.Rulesets.Catch/Judgements/CatchBananaJudgement.cs

@@ -30,7 +30,7 @@ namespace osu.Game.Rulesets.Catch.Judgements
                     return 0;
 
                 case HitResult.Perfect:
-                    return 0.008;
+                    return 0.01;
             }
         }
 

osu.Game.Rulesets.Catch/Judgements/CatchDropletJudgement.cs

@@ -18,17 +18,5 @@ namespace osu.Game.Rulesets.Catch.Judgements
                     return 30;
             }
         }
-
-        protected override double HealthIncreaseFor(HitResult result)
-        {
-            switch (result)
-            {
-                default:
-                    return base.HealthIncreaseFor(result);
-
-                case HitResult.Perfect:
-                    return 0.007;
-            }
-        }
     }
 }

osu.Game.Rulesets.Catch/Judgements/CatchJudgement.cs

@@ -23,18 +23,6 @@ namespace osu.Game.Rulesets.Catch.Judgements
             }
         }
 
-        protected override double HealthIncreaseFor(HitResult result)
-        {
-            switch (result)
-            {
-                default:
-                    return -0.02;
-
-                case HitResult.Perfect:
-                    return 0.01;
-            }
-        }
-
         /// <summary>
         /// Whether fruit on the platter should explode or drop.
         /// Note that this is only checked if the owning object is also <see cref="IHasComboInformation.LastInCombo" />

osu.Game.Rulesets.Catch/Judgements/CatchTinyDropletJudgement.cs

@@ -29,7 +29,7 @@ namespace osu.Game.Rulesets.Catch.Judgements
                     return 0;
 
                 case HitResult.Perfect:
-                    return 0.004;
+                    return 0.02;
             }
         }
     }

osu.Game.Rulesets.Mania.Tests/osu.Game.Rulesets.Mania.Tests.csproj

@@ -4,7 +4,7 @@
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.16.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
     <PackageReference Update="Microsoft.EntityFrameworkCore.Sqlite" Version="2.1.4" />
   </ItemGroup>
   <PropertyGroup Label="Project">

osu.Game.Rulesets.Mania/Judgements/HoldNoteTickJudgement.cs

@@ -15,11 +15,11 @@ namespace osu.Game.Rulesets.Mania.Judgements
         {
             switch (result)
             {
-                case HitResult.Miss:
+                default:
                     return 0;
 
-                default:
+                case HitResult.Perfect:
-                    return 0.040;
+                    return 0.01;
             }
         }
     }

osu.Game.Rulesets.Mania/Judgements/ManiaJudgement.cs

@@ -29,32 +29,5 @@ namespace osu.Game.Rulesets.Mania.Judgements
                     return 300;
             }
         }
-
-        protected override double HealthIncreaseFor(HitResult result)
-        {
-            switch (result)
-            {
-                case HitResult.Miss:
-                    return -0.125;
-
-                case HitResult.Meh:
-                    return 0.005;
-
-                case HitResult.Ok:
-                    return 0.010;
-
-                case HitResult.Good:
-                    return 0.035;
-
-                case HitResult.Great:
-                    return 0.055;
-
-                case HitResult.Perfect:
-                    return 0.065;
-
-                default:
-                    return 0;
-            }
-        }
     }
 }

osu.Game.Rulesets.Taiko.Tests/osu.Game.Rulesets.Taiko.Tests.csproj

@@ -4,7 +4,7 @@
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.16.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
     <PackageReference Update="Microsoft.EntityFrameworkCore.Sqlite" Version="2.1.4" />
   </ItemGroup>
   <PropertyGroup Label="Project">

osu.Game.Tests/Online/TestSceneBeatmapManager.cs

@@ -0,0 +1,51 @@
+// 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.Testing;
+using osu.Game.Beatmaps;
+using osu.Game.Overlays.Notifications;
+using osu.Game.Tests.Visual;
+
+namespace osu.Game.Tests.Online
+{
+    [HeadlessTest]
+    public class TestSceneBeatmapManager : OsuTestScene
+    {
+        private BeatmapManager beatmaps;
+        private ProgressNotification recentNotification;
+
+        private static readonly BeatmapSetInfo test_model = new BeatmapSetInfo { OnlineBeatmapSetID = 1 };
+
+        [BackgroundDependencyLoader]
+        private void load(BeatmapManager beatmaps)
+        {
+            this.beatmaps = beatmaps;
+
+            beatmaps.PostNotification = n => recentNotification = n as ProgressNotification;
+        }
+
+        [Test]
+        public void TestCancelDownloadFromRequest()
+        {
+            AddStep("download beatmap", () => beatmaps.Download(test_model));
+
+            AddStep("cancel download from request", () => beatmaps.GetExistingDownload(test_model).Cancel());
+
+            AddUntilStep("is removed from download list", () => beatmaps.GetExistingDownload(test_model) == null);
+            AddAssert("is notification cancelled", () => recentNotification.State == ProgressNotificationState.Cancelled);
+        }
+
+        [Test]
+        public void TestCancelDownloadFromNotification()
+        {
+            AddStep("download beatmap", () => beatmaps.Download(test_model));
+
+            AddStep("cancel download from notification", () => recentNotification.Close());
+
+            AddUntilStep("is removed from download list", () => beatmaps.GetExistingDownload(test_model) == null);
+            AddAssert("is notification cancelled", () => recentNotification.State == ProgressNotificationState.Cancelled);
+        }
+    }
+}

osu.Game.Tests/Visual/SongSelect/TestSceneBeatmapLeaderboard.cs

@@ -7,6 +7,7 @@ using osu.Framework.Graphics;
 using osu.Game.Beatmaps;
 using osu.Game.Online.API.Requests.Responses;
 using osu.Game.Online.Leaderboards;
+using osu.Game.Online.Placeholders;
 using osu.Game.Rulesets.Osu.Mods;
 using osu.Game.Scoring;
 using osu.Game.Screens.Select.Leaderboards;

osu.Game.Tests/Visual/UserInterface/TestSceneNowPlayingOverlay.cs

@@ -4,8 +4,10 @@
 using NUnit.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
-using osu.Framework.Timing;
+using osu.Framework.MathUtils;
+using osu.Game.Beatmaps;
 using osu.Game.Overlays;
+using osu.Game.Rulesets.Osu;
 
 namespace osu.Game.Tests.Visual.UserInterface
 {
@@ -15,22 +17,48 @@ namespace osu.Game.Tests.Visual.UserInterface
         [Cached]
         private MusicController musicController = new MusicController();
 
-        public TestSceneNowPlayingOverlay()
+        private WorkingBeatmap currentBeatmap;
-        {
-            Clock = new FramedClock();
 
-            var np = new NowPlayingOverlay
+        private NowPlayingOverlay nowPlayingOverlay;
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            Beatmap.Value = CreateWorkingBeatmap(new OsuRuleset().RulesetInfo);
+
+            nowPlayingOverlay = new NowPlayingOverlay
             {
                 Origin = Anchor.Centre,
                 Anchor = Anchor.Centre
             };
 
             Add(musicController);
-            Add(np);
+            Add(nowPlayingOverlay);
+        }
 
-            AddStep(@"show", () => np.Show());
+        [Test]
+        public void TestShowHideDisable()
+        {
+            AddStep(@"show", () => nowPlayingOverlay.Show());
             AddToggleStep(@"toggle beatmap lock", state => Beatmap.Disabled = state);
-            AddStep(@"show", () => np.Hide());
+            AddStep(@"hide", () => nowPlayingOverlay.Hide());
+        }
+
+        [Test]
+        public void TestPrevTrackBehavior()
+        {
+            AddStep(@"Play track", () =>
+            {
+                musicController.NextTrack();
+                currentBeatmap = Beatmap.Value;
+            });
+
+            AddStep(@"Seek track to 6 second", () => musicController.SeekTo(6000));
+            AddUntilStep(@"Wait for current time to update", () => currentBeatmap.Track.CurrentTime > 5000);
+            AddAssert(@"Check action is restart track", () => musicController.PreviousTrack() == PreviousTrackResult.Restart);
+            AddUntilStep("Wait for current time to update", () => Precision.AlmostEquals(currentBeatmap.Track.CurrentTime, 0));
+            AddAssert(@"Check track didn't change", () => currentBeatmap == Beatmap.Value);
+            AddAssert(@"Check action is not restart", () => musicController.PreviousTrack() != PreviousTrackResult.Restart);
         }
     }
 }

osu.Game.Tests/osu.Game.Tests.csproj

@@ -5,7 +5,7 @@
     <PackageReference Include="DeepEqual" Version="2.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.16.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
     <PackageReference Update="Microsoft.EntityFrameworkCore.Sqlite" Version="2.1.4" />
   </ItemGroup>
   <PropertyGroup Label="Project">

osu.Game.Tournament.Tests/osu.Game.Tournament.Tests.csproj

@@ -7,7 +7,7 @@
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.16.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
   </ItemGroup>
   <PropertyGroup Label="Project">
     <OutputType>WinExe</OutputType>

osu.Game/Beatmaps/Drawables/DifficultyIcon.cs

@@ -48,11 +48,9 @@ namespace osu.Game.Beatmaps.Drawables
             InternalChild = iconContainer = new Container { Size = new Vector2(20f) };
         }
 
-        public string TooltipText { get; set; }
-
         public ITooltip GetCustomTooltip() => new DifficultyIconTooltip();
 
-        public object TooltipContent { get; set; }
+        public object TooltipContent { get; }
 
         [BackgroundDependencyLoader]
         private void load(OsuColour colours)

osu.Game/Database/DownloadableArchiveModelManager.cs

@@ -92,8 +92,6 @@ namespace osu.Game.Database
             notification.CancelRequested += () =>
             {
                 request.Cancel();
-                currentDownloads.Remove(request);
-                notification.State = ProgressNotificationState.Cancelled;
                 return true;
             };
 
@@ -109,11 +107,11 @@ namespace osu.Game.Database
             {
                 DownloadFailed?.Invoke(request);
 
-                if (error is OperationCanceledException) return;
-
-                notification.State = ProgressNotificationState.Cancelled;
-                Logger.Error(error, $"{HumanisedModelName.Titleize()} download failed!");
                 currentDownloads.Remove(request);
+                notification.State = ProgressNotificationState.Cancelled;
+
+                if (!(error is OperationCanceledException))
+                    Logger.Error(error, $"{HumanisedModelName.Titleize()} download failed!");
             }
         }
 

osu.Game/Graphics/Backgrounds/Triangles.cs

@@ -29,8 +29,33 @@ namespace osu.Game.Graphics.Backgrounds
         /// </summary>
         private const float edge_smoothness = 1;
 
-        public Color4 ColourLight = Color4.White;
+        private Color4 colourLight = Color4.White;
-        public Color4 ColourDark = Color4.Black;
+
+        public Color4 ColourLight
+        {
+            get => colourLight;
+            set
+            {
+                if (colourLight == value) return;
+
+                colourLight = value;
+                updateColours();
+            }
+        }
+
+        private Color4 colourDark = Color4.Black;
+
+        public Color4 ColourDark
+        {
+            get => colourDark;
+            set
+            {
+                if (colourDark == value) return;
+
+                colourDark = value;
+                updateColours();
+            }
+        }
 
         /// <summary>
         /// Whether we want to expire triangles as they exit our draw area completely.
@@ -151,7 +176,8 @@ namespace osu.Game.Graphics.Backgrounds
             TriangleParticle particle = CreateTriangle();
 
             particle.Position = new Vector2(RNG.NextSingle(), randomY ? RNG.NextSingle() : 1);
-            particle.Colour = CreateTriangleShade();
+            particle.ColourShade = RNG.NextSingle();
+            particle.Colour = CreateTriangleShade(particle.ColourShade);
 
             return particle;
         }
@@ -177,7 +203,17 @@ namespace osu.Game.Graphics.Backgrounds
         /// Creates a shade of colour for the triangles.
         /// </summary>
         /// <returns>The colour.</returns>
-        protected virtual Color4 CreateTriangleShade() => Interpolation.ValueAt(RNG.NextSingle(), ColourDark, ColourLight, 0, 1);
+        protected virtual Color4 CreateTriangleShade(float shade) => Interpolation.ValueAt(shade, colourDark, colourLight, 0, 1);
+
+        private void updateColours()
+        {
+            for (int i = 0; i < parts.Count; i++)
+            {
+                TriangleParticle newParticle = parts[i];
+                newParticle.Colour = CreateTriangleShade(newParticle.ColourShade);
+                parts[i] = newParticle;
+            }
+        }
 
         protected override DrawNode CreateDrawNode() => new TrianglesDrawNode(this);
 
@@ -264,6 +300,12 @@ namespace osu.Game.Graphics.Backgrounds
             /// </summary>
             public Vector2 Position;
 
+            /// <summary>
+            /// The colour shade of the triangle.
+            /// This is needed for colour recalculation of visible triangles when <see cref="ColourDark"/> or <see cref="ColourLight"/> is changed.
+            /// </summary>
+            public float ColourShade;
+
             /// <summary>
             /// The colour of the triangle.
             /// </summary>

osu.Game/Graphics/Containers/OsuScrollContainer.cs

@@ -123,8 +123,6 @@ namespace osu.Game.Graphics.Containers
 
                 Masking = true;
                 Child = box = new Box { RelativeSizeAxes = Axes.Both };
-
-                ResizeTo(1);
             }
 
             [BackgroundDependencyLoader]

osu.Game/Online/API/APIRequest.cs

@@ -14,7 +14,7 @@ namespace osu.Game.Online.API
     /// <typeparam name="T">Type of the response (used for deserialisation).</typeparam>
     public abstract class APIRequest<T> : APIRequest
     {
-        protected override WebRequest CreateWebRequest() => new JsonWebRequest<T>(Uri);
+        protected override WebRequest CreateWebRequest() => new OsuJsonWebRequest<T>(Uri);
 
         public T Result => ((JsonWebRequest<T>)WebRequest).ResponseObject;
 
@@ -30,6 +30,16 @@ namespace osu.Game.Online.API
         /// This will be scheduled to the API's internal scheduler (run on update thread automatically).
         /// </summary>
         public new event APISuccessHandler<T> Success;
+
+        private class OsuJsonWebRequest<U> : JsonWebRequest<U>
+        {
+            public OsuJsonWebRequest(string uri)
+                : base(uri)
+            {
+            }
+
+            protected override string UserAgent => "osu!";
+        }
     }
 
     /// <summary>
@@ -39,7 +49,7 @@ namespace osu.Game.Online.API
     {
         protected abstract string Target { get; }
 
-        protected virtual WebRequest CreateWebRequest() => new WebRequest(Uri);
+        protected virtual WebRequest CreateWebRequest() => new OsuWebRequest(Uri);
 
         protected virtual string Uri => $@"{API.Endpoint}/api/v2/{Target}";
 
@@ -152,6 +162,16 @@ namespace osu.Game.Online.API
             [JsonProperty("error")]
             public string ErrorMessage { get; set; }
         }
+
+        private class OsuWebRequest : WebRequest
+        {
+            public OsuWebRequest(string uri)
+                : base(uri)
+            {
+            }
+
+            protected override string UserAgent => "osu!";
+        }
     }
 
     public class APIException : InvalidOperationException

osu.Game/Online/Leaderboards/Leaderboard.cs

@@ -14,6 +14,7 @@ using osu.Framework.Threading;
 using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.UserInterface;
 using osu.Game.Online.API;
+using osu.Game.Online.Placeholders;
 using osuTK;
 using osuTK.Graphics;
 
@@ -150,7 +151,7 @@ namespace osu.Game.Online.Leaderboards
                         break;
 
                     case PlaceholderState.NotLoggedIn:
-                        replacePlaceholder(new MessagePlaceholder(@"Please sign in to view online leaderboards!"));
+                        replacePlaceholder(new LoginPlaceholder());
                         break;
 
                     case PlaceholderState.NotSupporter:

osu.Game/Online/Leaderboards/RetrievalFailurePlaceholder.cs

@@ -6,6 +6,7 @@ using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
 using osu.Framework.Input.Events;
 using osu.Game.Graphics.Containers;
+using osu.Game.Online.Placeholders;
 using osuTK;
 
 namespace osu.Game.Online.Leaderboards

osu.Game/Online/Placeholders/LoginPlaceholder.cs

@@ -0,0 +1,46 @@
+// 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.Graphics;
+using osu.Framework.Graphics.Sprites;
+using osu.Framework.Input.Events;
+using osu.Game.Overlays;
+
+namespace osu.Game.Online.Placeholders
+{
+    public sealed class LoginPlaceholder : Placeholder
+    {
+        [Resolved(CanBeNull = true)]
+        private LoginOverlay login { get; set; }
+
+        public LoginPlaceholder()
+        {
+            AddIcon(FontAwesome.Solid.UserLock, cp =>
+            {
+                cp.Font = cp.Font.With(size: TEXT_SIZE);
+                cp.Padding = new MarginPadding { Right = 10 };
+            });
+
+            AddText(@"Please sign in to view online leaderboards!");
+        }
+
+        protected override bool OnMouseDown(MouseDownEvent e)
+        {
+            this.ScaleTo(0.8f, 4000, Easing.OutQuint);
+            return base.OnMouseDown(e);
+        }
+
+        protected override bool OnMouseUp(MouseUpEvent e)
+        {
+            this.ScaleTo(1, 1000, Easing.OutElastic);
+            return base.OnMouseUp(e);
+        }
+
+        protected override bool OnClick(ClickEvent e)
+        {
+            login?.Show();
+            return base.OnClick(e);
+        }
+    }
+}

osu.Game/Online/Placeholders/MessagePlaceholder.cs

@@ -4,7 +4,7 @@
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
 
-namespace osu.Game.Online.Leaderboards
+namespace osu.Game.Online.Placeholders
 {
     public class MessagePlaceholder : Placeholder
     {

osu.Game/Online/Placeholders/Placeholder.cs

@@ -5,7 +5,7 @@ using System;
 using osu.Framework.Graphics;
 using osu.Game.Graphics.Containers;
 
-namespace osu.Game.Online.Leaderboards
+namespace osu.Game.Online.Placeholders
 {
     public abstract class Placeholder : OsuTextFlowContainer, IEquatable<Placeholder>
     {

osu.Game/Overlays/MedalOverlay.cs

@@ -41,11 +41,17 @@ namespace osu.Game.Overlays
 
         private SampleChannel getSample;
 
+        private readonly Container content;
+
         public MedalOverlay(Medal medal)
         {
             this.medal = medal;
             RelativeSizeAxes = Axes.Both;
 
+            Child = content = new Container
+            {
+                Alpha = 0,
+                RelativeSizeAxes = Axes.Both,
                 Children = new Drawable[]
                 {
                     background = new Box
@@ -139,7 +145,10 @@ namespace osu.Game.Overlays
                             },
                         },
                     },
+                }
             };
+
+            Show();
         }
 
         [BackgroundDependencyLoader]
@@ -154,19 +163,22 @@ namespace osu.Game.Overlays
                 Colour = colours.Blue.Opacity(0.5f),
                 Radius = 50,
             };
-
-            disc.Add(drawableMedal = new DrawableMedal(medal)
-            {
-                Anchor = Anchor.TopCentre,
-                Origin = Anchor.TopCentre,
-                RelativeSizeAxes = Axes.Both,
-            });
         }
 
         protected override void LoadComplete()
         {
             base.LoadComplete();
-            Show();
+
+            LoadComponentAsync(drawableMedal = new DrawableMedal(medal)
+            {
+                Anchor = Anchor.TopCentre,
+                Origin = Anchor.TopCentre,
+                RelativeSizeAxes = Axes.Both,
+            }, loaded =>
+            {
+                disc.Add(loaded);
+                startAnimation();
+            });
         }
 
         protected override void Update()
@@ -190,11 +202,10 @@ namespace osu.Game.Overlays
         private const double initial_duration = 400;
         private const double step_duration = 900;
 
-        protected override void PopIn()
+        private void startAnimation()
         {
-            base.PopIn();
+            content.Show();
 
-            this.FadeIn(200);
             background.FlashColour(Color4.White.Opacity(0.25f), 400);
 
             getSample.Play();

osu.Game/Overlays/MedalSplash/DrawableMedal.cs

@@ -51,7 +51,7 @@ namespace osu.Game.Overlays.MedalSplash
                         {
                             Anchor = Anchor.Centre,
                             Origin = Anchor.Centre,
-                            Scale = new Vector2(0.81f),
+                            Scale = new Vector2(0.41f),
                         },
                         medalGlow = new Sprite
                         {

osu.Game/Overlays/MusicController.cs

@@ -27,6 +27,11 @@ namespace osu.Game.Overlays
 
         public IBindableList<BeatmapSetInfo> BeatmapSets => beatmapSets;
 
+        /// <summary>
+        /// Point in time after which the current track will be restarted on triggering a "previous track" action.
+        /// </summary>
+        private const double restart_cutoff_point = 5000;
+
         private readonly BindableList<BeatmapSetInfo> beatmapSets = new BindableList<BeatmapSetInfo>();
 
         public bool IsUserPaused { get; private set; }
@@ -151,11 +156,19 @@ namespace osu.Game.Overlays
         }
 
         /// <summary>
-        /// Play the previous track.
+        /// Play the previous track or restart the current track if it's current time below <see cref="restart_cutoff_point"/>
         /// </summary>
-        /// <returns>Whether the operation was successful.</returns>
+        /// <returns>The <see cref="PreviousTrackResult"/> that indicate the decided action</returns>
-        public bool PrevTrack()
+        public PreviousTrackResult PreviousTrack()
         {
+            var currentTrackPosition = current?.Track.CurrentTime;
+
+            if (currentTrackPosition >= restart_cutoff_point)
+            {
+                SeekTo(0);
+                return PreviousTrackResult.Restart;
+            }
+
             queuedDirection = TrackChangeDirection.Prev;
 
             var playable = BeatmapSets.TakeWhile(i => i.ID != current.BeatmapSetInfo.ID).LastOrDefault() ?? BeatmapSets.LastOrDefault();
@@ -166,10 +179,10 @@ namespace osu.Game.Overlays
                     working.Value = beatmaps.GetWorkingBeatmap(playable.Beatmaps.First(), beatmap.Value);
                 beatmap.Value.Track.Restart();
 
-                return true;
+                return PreviousTrackResult.Previous;
             }
 
-            return false;
+            return PreviousTrackResult.None;
         }
 
         /// <summary>
@@ -296,8 +309,16 @@ namespace osu.Game.Overlays
                     return true;
 
                 case GlobalAction.MusicPrev:
-                    if (PrevTrack())
+                    switch (PreviousTrack())
+                    {
+                        case PreviousTrackResult.Restart:
+                            onScreenDisplay?.Display(new MusicControllerToast("Restart track"));
+                            break;
+
+                        case PreviousTrackResult.Previous:
                             onScreenDisplay?.Display(new MusicControllerToast("Previous track"));
+                            break;
+                    }
 
                     return true;
             }
@@ -322,4 +343,11 @@ namespace osu.Game.Overlays
         Next,
         Prev
     }
+
+    public enum PreviousTrackResult
+    {
+        None,
+        Restart,
+        Previous
+    }
 }

osu.Game/Overlays/NowPlayingOverlay.cs

@@ -137,7 +137,7 @@ namespace osu.Game.Overlays
                                                 {
                                                     Anchor = Anchor.Centre,
                                                     Origin = Anchor.Centre,
-                                                    Action = () => musicController.PrevTrack(),
+                                                    Action = () => musicController.PreviousTrack(),
                                                     Icon = FontAwesome.Solid.StepBackward,
                                                 },
                                                 playButton = new MusicIconButton

osu.Game/osu.Game.csproj

@@ -23,7 +23,7 @@
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite.Core" Version="2.2.6" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
     <PackageReference Include="ppy.osu.Game.Resources" Version="2019.1230.0" />
-    <PackageReference Include="ppy.osu.Framework" Version="2019.1227.1" />
+    <PackageReference Include="ppy.osu.Framework" Version="2020.103.0" />
     <PackageReference Include="Sentry" Version="1.2.0" />
     <PackageReference Include="SharpCompress" Version="0.24.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />

osu.iOS.props

@@ -74,7 +74,7 @@
   </ItemGroup>
   <ItemGroup Label="Package References">
     <PackageReference Include="ppy.osu.Game.Resources" Version="2019.1230.0" />
-    <PackageReference Include="ppy.osu.Framework.iOS" Version="2019.1227.1" />
+    <PackageReference Include="ppy.osu.Framework.iOS" Version="2020.103.0" />
   </ItemGroup>
   <!-- Xamarin.iOS does not automatically handle transitive dependencies from NuGet packages. -->
   <ItemGroup Label="Transitive Dependencies">
@@ -82,7 +82,7 @@
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="2.2.6" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite.Core" Version="2.2.6" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
-    <PackageReference Include="ppy.osu.Framework" Version="2019.1227.1" />
+    <PackageReference Include="ppy.osu.Framework" Version="2020.103.0" />
     <PackageReference Include="SharpCompress" Version="0.24.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />
     <PackageReference Include="SharpRaven" Version="2.4.0" />