Merge branch 'master' into carousel-gradient

README.md

@@ -24,9 +24,9 @@ Detailed changelogs are published on the [official osu! site](https://osu.ppy.sh
 
 ![](https://puu.sh/DCmvA/f6a74f5fbb.png)
 
-If you are not interested in developing the game, you can consume our [binary releases](https://github.com/ppy/osu/releases).
+If you are not interested in developing the game, you can still consume our [binary releases](https://github.com/ppy/osu/releases).
 
-**Latest build:***
+**Latest build:**
 
 | [Windows (x64)](https://github.com/ppy/osu/releases/latest/download/install.exe)  | [macOS 10.12+](https://github.com/ppy/osu/releases/latest/download/osu.app.zip) |
 | ------------- | ------------- |

osu.Desktop/Overlays/VersionManager.cs

@@ -2,6 +2,7 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using osu.Framework.Allocation;
+using osu.Framework.Development;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Sprites;
@@ -12,7 +13,6 @@ using osu.Game.Graphics;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Overlays;
 using osu.Game.Overlays.Notifications;
-using osu.Game.Utils;
 using osuTK;
 using osuTK.Graphics;
 
@@ -61,7 +61,7 @@ namespace osu.Desktop.Overlays
                                 },
                                 new OsuSpriteText
                                 {
-                                    Colour = DebugUtils.IsDebug ? colours.Red : Color4.White,
+                                    Colour = DebugUtils.IsDebugBuild ? colours.Red : Color4.White,
                                     Text = game.Version
                                 },
                             }

osu.Game.Tests/Visual/Online/TestSceneScoresContainer.cs

@@ -3,6 +3,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
@@ -39,8 +40,7 @@ namespace osu.Game.Tests.Visual.Online
             {
                 Anchor = Anchor.TopCentre,
                 Origin = Anchor.TopCentre,
-                AutoSizeAxes = Axes.Y,
+                RelativeSizeAxes = Axes.Both,
-                RelativeSizeAxes = Axes.X,
                 Width = 0.8f,
                 Children = new Drawable[]
                 {
@@ -173,7 +173,9 @@ namespace osu.Game.Tests.Visual.Online
                 s.Statistics.Add(HitResult.Miss, RNG.Next(2000));
             }
 
-            scoresContainer.Scores = scores;
+            AddStep("Load all scores", () => scoresContainer.Scores = scores);
+            AddStep("Load null scores", () => scoresContainer.Scores = null);
+            AddStep("Load only one score", () => scoresContainer.Scores = new[] { scores.First() });
         }
 
         [BackgroundDependencyLoader]

osu.Game.Tests/Visual/Online/TestSceneUserProfileHeader.cs

@@ -39,13 +39,27 @@ namespace osu.Game.Tests.Visual.Online
             header = new ProfileHeader();
             Add(header);
 
-            AddStep("Show offline dummy", () => header.User.Value = TestSceneUserProfileOverlay.TEST_USER);
+            AddStep("Show test dummy", () => header.User.Value = TestSceneUserProfileOverlay.TEST_USER);
 
             AddStep("Show null dummy", () => header.User.Value = new User
             {
                 Username = "Null"
             });
 
+            AddStep("Show online dummy", () => header.User.Value = new User
+            {
+                Username = "IAmOnline",
+                LastVisit = DateTimeOffset.Now,
+                IsOnline = true,
+            });
+
+            AddStep("Show offline dummy", () => header.User.Value = new User
+            {
+                Username = "IAmOffline",
+                LastVisit = DateTimeOffset.Now,
+                IsOnline = false,
+            });
+
             addOnlineStep("Show ppy", new User
             {
                 Username = @"peppy",

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

@@ -214,37 +214,6 @@ namespace osu.Game.Tests.Visual.SongSelect
             AddAssert("start not requested", () => !startRequested);
         }
 
-        [Test]
-        public void TestAddNewBeatmapWhileSelectingRandom()
-        {
-            const int test_count = 10;
-            int beatmapChangedCount = 0;
-            int debounceCount = 0;
-            createSongSelect();
-            AddStep("Setup counters", () =>
-            {
-                beatmapChangedCount = 0;
-                debounceCount = 0;
-                songSelect.Carousel.SelectionChanged += _ => beatmapChangedCount++;
-            });
-            AddRepeatStep($"Create beatmaps {test_count} times", () =>
-            {
-                importForRuleset(0);
-
-                Scheduler.AddDelayed(() =>
-                {
-                    // Wait for debounce
-                    songSelect.Carousel.SelectNextRandom();
-                    ++debounceCount;
-                }, 400);
-            }, test_count);
-
-            AddUntilStep("Debounce limit reached", () => debounceCount == test_count);
-
-            // The selected beatmap should have changed an additional 2 times since both initially loading songselect and the first import also triggers selectionChanged
-            AddAssert($"Beatmap changed {test_count + 2} times", () => beatmapChangedCount == test_count + 2);
-        }
-
         [Test]
         public void TestHideSetSelectsCorrectBeatmap()
         {

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

@@ -24,11 +24,10 @@ using osuTK.Graphics;
 namespace osu.Game.Tests.Visual.UserInterface
 {
     [Description("mod select and icon display")]
-    public class TestSceneMods : OsuTestScene
+    public class TestSceneModSelectOverlay : OsuTestScene
     {
         public override IReadOnlyList<Type> RequiredTypes => new[]
         {
-            typeof(ModSelectOverlay),
             typeof(ModDisplay),
             typeof(ModSection),
             typeof(ModIcon),
@@ -217,13 +216,13 @@ namespace osu.Game.Tests.Visual.UserInterface
 
         private void testRankedText(Mod mod)
         {
-            AddWaitStep("wait for fade", 1);
+            waitForLoad();
             AddAssert("check for ranked", () => modSelect.UnrankedLabel.Alpha == 0);
             selectNext(mod);
-            AddWaitStep("wait for fade", 1);
+            waitForLoad();
             AddAssert("check for unranked", () => modSelect.UnrankedLabel.Alpha != 0);
             selectPrevious(mod);
-            AddWaitStep("wait for fade", 1);
+            waitForLoad();
             AddAssert("check for ranked", () => modSelect.UnrankedLabel.Alpha == 0);
         }
 
@@ -233,6 +232,7 @@ namespace osu.Game.Tests.Visual.UserInterface
 
         private void checkSelected(Mod mod)
         {
+            waitForLoad();
             AddAssert($"check {mod.Name} is selected", () =>
             {
                 var button = modSelect.GetModButton(mod);
@@ -240,8 +240,14 @@ namespace osu.Game.Tests.Visual.UserInterface
             });
         }
 
+        private void waitForLoad()
+        {
+            AddUntilStep("wait for icons to load", () => modSelect.AllLoaded);
+        }
+
         private void checkNotSelected(Mod mod)
         {
+            waitForLoad();
             AddAssert($"check {mod.Name} is not selected", () =>
             {
                 var button = modSelect.GetModButton(mod);
@@ -255,6 +261,8 @@ namespace osu.Game.Tests.Visual.UserInterface
         {
             public new Bindable<IReadOnlyList<Mod>> SelectedMods => base.SelectedMods;
 
+            public bool AllLoaded => ModSectionsContainer.Children.All(c => c.ModIconsLoaded);
+
             public ModButton GetModButton(Mod mod)
             {
                 var section = ModSectionsContainer.Children.Single(s => s.ModType == mod.Type);

osu.Game/Beatmaps/BeatmapManager.cs

@@ -363,7 +363,7 @@ namespace osu.Game.Beatmaps
             foreach (var name in reader.Filenames.Where(f => f.EndsWith(".osu")))
             {
                 using (var raw = reader.GetStream(name))
-                using (var ms = new MemoryStream()) //we need a memory stream so we can seek and shit
+                using (var ms = new MemoryStream()) //we need a memory stream so we can seek
                 using (var sr = new StreamReader(ms))
                 {
                     raw.CopyTo(ms);

osu.Game/Graphics/UserInterface/OsuButton.cs

@@ -17,11 +17,11 @@ namespace osu.Game.Graphics.UserInterface
     /// <summary>
     /// A button with added default sound effects.
     /// </summary>
-    public abstract class OsuButton : Button
+    public class OsuButton : Button
     {
         private Box hover;
 
-        protected OsuButton()
+        public OsuButton()
         {
             Height = 40;
 

osu.Game/Online/API/Requests/Responses/APIChangelogBuild.cs

@@ -31,9 +31,9 @@ namespace osu.Game.Online.API.Requests.Responses
         public List<APIChangelogEntry> ChangelogEntries { get; set; }
 
         [JsonProperty("versions")]
-        public VersionNatigation Versions { get; set; }
+        public VersionNavigation Versions { get; set; }
 
-        public class VersionNatigation
+        public class VersionNavigation
         {
             [JsonProperty("next")]
             public APIChangelogBuild Next { get; set; }

osu.Game/Online/Chat/Message.cs

@@ -13,10 +13,6 @@ namespace osu.Game.Online.Chat
         [JsonProperty(@"message_id")]
         public readonly long? Id;
 
-        //todo: this should be inside sender.
-        [JsonProperty(@"sender_id")]
-        public long UserId;
-
         [JsonProperty(@"channel_id")]
         public long ChannelId;
 

osu.Game/OsuGame.cs

@@ -181,9 +181,11 @@ namespace osu.Game
             configSkin.ValueChanged += skinId => SkinManager.CurrentSkinInfo.Value = SkinManager.Query(s => s.ID == skinId.NewValue) ?? SkinInfo.Default;
             configSkin.TriggerChange();
 
-            LocalConfig.BindWith(OsuSetting.VolumeInactive, inactiveVolumeAdjust);
+            LocalConfig.BindWith(OsuSetting.VolumeInactive, userInactiveVolume);
 
             IsActive.BindValueChanged(active => updateActiveState(active.NewValue), true);
+
+            Beatmap.BindValueChanged(beatmapChanged, true);
         }
 
         private ExternalLinkOpener externalLinkOpener;
@@ -284,6 +286,23 @@ namespace osu.Game
             }, $"watch {databasedScoreInfo}", bypassScreenAllowChecks: true);
         }
 
+        #region Beatmap jukebox progression
+
+        private void beatmapChanged(ValueChangedEvent<WorkingBeatmap> beatmap)
+        {
+            var nextBeatmap = beatmap.NewValue;
+            if (nextBeatmap?.Track != null)
+                nextBeatmap.Track.Completed += currentTrackCompleted;
+        }
+
+        private void currentTrackCompleted()
+        {
+            if (!Beatmap.Value.Track.Looping && !Beatmap.Disabled)
+                musicController.NextTrack();
+        }
+
+        #endregion
+
         private ScheduledDelegate performFromMainMenuTask;
 
         /// <summary>
@@ -446,7 +465,7 @@ namespace osu.Game
                 Origin = Anchor.TopRight,
             }, rightFloatingOverlayContent.Add, true);
 
-            loadComponentSingleFile(new MusicController
+            loadComponentSingleFile(musicController = new MusicController
             {
                 GetToolbarHeight = () => ToolbarOffset,
                 Anchor = Anchor.TopRight,
@@ -686,16 +705,28 @@ namespace osu.Game
             return false;
         }
 
-        private readonly BindableDouble inactiveVolumeAdjust = new BindableDouble();
+        #region Inactive audio dimming
+
+        private readonly BindableDouble userInactiveVolume = new BindableDouble();
+
+        private readonly BindableDouble inactiveVolumeFade = new BindableDouble();
 
         private void updateActiveState(bool isActive)
         {
             if (isActive)
-                Audio.RemoveAdjustment(AdjustableProperty.Volume, inactiveVolumeAdjust);
+            {
+                this.TransformBindableTo(inactiveVolumeFade, 1, 500, Easing.OutQuint)
+                    .Finally(_ => Audio.RemoveAdjustment(AdjustableProperty.Volume, inactiveVolumeFade)); //wait for the transition to finish to remove the inactive audio adjustment
+            }
             else
-                Audio.AddAdjustment(AdjustableProperty.Volume, inactiveVolumeAdjust);
+            {
+                Audio.AddAdjustment(AdjustableProperty.Volume, inactiveVolumeFade);
+                this.TransformBindableTo(inactiveVolumeFade, userInactiveVolume.Value, 1500, Easing.OutSine);
+            }
         }
 
+        #endregion
+
         public bool OnReleased(GlobalAction action) => false;
 
         private Container overlayContent;
@@ -707,8 +738,11 @@ namespace osu.Game
         private Container topMostOverlayContent;
 
         private FrameworkConfigManager frameworkConfig;
+
         private ScalingContainer screenContainer;
 
+        private MusicController musicController;
+
         protected override bool OnExiting()
         {
             if (screenStack.CurrentScreen is Loader)

osu.Game/OsuGameBase.cs

@@ -10,6 +10,7 @@ using System.Threading.Tasks;
 using osu.Framework.Allocation;
 using osu.Framework.Audio;
 using osu.Framework.Bindables;
+using osu.Framework.Development;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.IO.Stores;
@@ -34,7 +35,6 @@ using osu.Game.Rulesets.Mods;
 using osu.Game.Scoring;
 using osu.Game.Skinning;
 using osuTK.Input;
-using DebugUtils = osu.Game.Utils.DebugUtils;
 
 namespace osu.Game
 {
@@ -97,7 +97,7 @@ namespace osu.Game
             get
             {
                 if (!IsDeployedBuild)
-                    return @"local " + (DebugUtils.IsDebug ? @"debug" : @"release");
+                    return @"local " + (DebugUtils.IsDebugBuild ? @"debug" : @"release");
 
                 var version = AssemblyVersion;
                 return $@"{version.Major}.{version.Minor}.{version.Build}";

osu.Game/Overlays/BeatmapSet/Header.cs

@@ -45,7 +45,7 @@ namespace osu.Game.Overlays.BeatmapSet
             ExternalLinkButton externalLink;
 
             RelativeSizeAxes = Axes.X;
-            Height = 400;
+            AutoSizeAxes = Axes.Y;
             Masking = true;
 
             EdgeEffect = new EdgeEffectParameters
@@ -72,7 +72,8 @@ namespace osu.Game.Overlays.BeatmapSet
                 },
                 new Container
                 {
-                    RelativeSizeAxes = Axes.Both,
+                    RelativeSizeAxes = Axes.X,
+                    AutoSizeAxes = Axes.Y,
                     Padding = new MarginPadding { Top = tabs_height },
                     Children = new Drawable[]
                     {
@@ -84,6 +85,7 @@ namespace osu.Game.Overlays.BeatmapSet
                                 cover = new UpdateableBeatmapSetCover
                                 {
                                     RelativeSizeAxes = Axes.Both,
+                                    Masking = true,
                                 },
                                 new Box
                                 {
@@ -94,18 +96,26 @@ namespace osu.Game.Overlays.BeatmapSet
                         },
                         new Container
                         {
-                            RelativeSizeAxes = Axes.Both,
+                            RelativeSizeAxes = Axes.X,
-                            Padding = new MarginPadding { Top = 20, Bottom = 30, Horizontal = BeatmapSetOverlay.X_PADDING },
+                            AutoSizeAxes = Axes.Y,
+                            Padding = new MarginPadding
+                            {
+                                Top = 20,
+                                Bottom = 30,
+                                Left = BeatmapSetOverlay.X_PADDING,
+                                Right = BeatmapSetOverlay.X_PADDING + BeatmapSetOverlay.RIGHT_WIDTH,
+                            },
                             Child = new FillFlowContainer
                             {
-                                RelativeSizeAxes = Axes.Both,
+                                RelativeSizeAxes = Axes.X,
+                                AutoSizeAxes = Axes.Y,
                                 Direction = FillDirection.Vertical,
                                 Children = new Drawable[]
                                 {
                                     new Container
                                     {
                                         RelativeSizeAxes = Axes.X,
-                                        Height = 113,
+                                        AutoSizeAxes = Axes.Y,
                                         Child = Picker = new BeatmapPicker(),
                                     },
                                     new FillFlowContainer
@@ -158,7 +168,7 @@ namespace osu.Game.Overlays.BeatmapSet
                             Anchor = Anchor.BottomRight,
                             Origin = Anchor.BottomRight,
                             AutoSizeAxes = Axes.Both,
-                            Margin = new MarginPadding { Right = BeatmapSetOverlay.X_PADDING },
+                            Margin = new MarginPadding { Top = BeatmapSetOverlay.TOP_PADDING, Right = BeatmapSetOverlay.X_PADDING },
                             Direction = FillDirection.Vertical,
                             Spacing = new Vector2(10),
                             Children = new Drawable[]

osu.Game/Overlays/BeatmapSet/Scores/ScoresContainer.cs

@@ -124,6 +124,7 @@ namespace osu.Game.Overlays.BeatmapSet.Scores
             loading = false;
 
             scoreTable.Scores = scores?.Count > 1 ? scores : new List<ScoreInfo>();
+            scoreTable.FadeTo(scores?.Count > 1 ? 1 : 0);
 
             if (scores?.Any() == true)
             {

osu.Game/Overlays/BeatmapSetOverlay.cs

@@ -24,6 +24,7 @@ namespace osu.Game.Overlays
         private const int fade_duration = 300;
 
         public const float X_PADDING = 40;
+        public const float TOP_PADDING = 25;
         public const float RIGHT_WIDTH = 275;
 
         private readonly Header header;

osu.Game/Overlays/Mods/ModSection.cs

@@ -10,6 +10,7 @@ using osu.Game.Rulesets.Mods;
 using System;
 using System.Linq;
 using System.Collections.Generic;
+using System.Threading;
 using osu.Framework.Input.Events;
 using osu.Game.Graphics;
 
@@ -33,6 +34,13 @@ namespace osu.Game.Overlays.Mods
 
         public IEnumerable<Mod> SelectedMods => buttons.Select(b => b.SelectedMod).Where(m => m != null);
 
+        private CancellationTokenSource modsLoadCts;
+
+        /// <summary>
+        /// True when all mod icons have completed loading.
+        /// </summary>
+        public bool ModIconsLoaded { get; private set; } = true;
+
         public IEnumerable<Mod> Mods
         {
             set
@@ -48,8 +56,28 @@ namespace osu.Game.Overlays.Mods
                     };
                 }).ToArray();
 
-                ButtonsContainer.Children = modContainers;
+                modsLoadCts?.Cancel();
+                ModIconsLoaded = false;
+
+                LoadComponentsAsync(modContainers, c =>
+                {
+                    ModIconsLoaded = true;
+                    ButtonsContainer.ChildrenEnumerable = c;
+                }, (modsLoadCts = new CancellationTokenSource()).Token);
+
                 buttons = modContainers.OfType<ModButton>().ToArray();
+
+                if (value.Any())
+                {
+                    headerLabel.FadeIn(200);
+                    this.FadeIn(200);
+                }
+                else
+                {
+                    // transition here looks weird as mods instantly disappear.
+                    headerLabel.Hide();
+                    Hide();
+                }
             }
         }
 

osu.Game/Overlays/Mods/ModSelectOverlay.cs

@@ -172,6 +172,8 @@ namespace osu.Game.Overlays.Mods
                                     AutoSizeAxes = Axes.Y,
                                     Spacing = new Vector2(0f, 10f),
                                     Width = content_width,
+                                    LayoutDuration = 200,
+                                    LayoutEasing = Easing.OutQuint,
                                     Children = new ModSection[]
                                     {
                                         new DifficultyReductionSection { Action = modButtonPressed },

osu.Game/Overlays/MusicController.cs

@@ -70,9 +70,6 @@ namespace osu.Game.Overlays
         {
             Width = 400;
             Margin = new MarginPadding(10);
-
-            // required to let MusicController handle beatmap cycling.
-            AlwaysPresent = true;
         }
 
         [BackgroundDependencyLoader]
@@ -349,18 +346,11 @@ namespace osu.Game.Overlays
 
                     direction = last > next ? TransformDirection.Prev : TransformDirection.Next;
                 }
-
-                //current.Track.Completed -= currentTrackCompleted;
             }
 
-            current = beatmap.NewValue;
-
-            if (current != null)
-                current.Track.Completed += currentTrackCompleted;
-
             progressBar.CurrentTime = 0;
 
-            updateDisplay(current, direction);
+            updateDisplay(current = beatmap.NewValue, direction);
             updateAudioAdjustments();
 
             queuedDirection = null;
@@ -378,12 +368,6 @@ namespace osu.Game.Overlays
                 mod.ApplyToClock(track);
         }
 
-        private void currentTrackCompleted() => Schedule(() =>
-        {
-            if (!current.Track.Looping && !beatmap.Disabled && beatmapSets.Any())
-                next();
-        });
-
         private ScheduledDelegate pendingBeatmapSwitch;
 
         private void updateDisplay(WorkingBeatmap beatmap, TransformDirection direction)
@@ -447,10 +431,6 @@ namespace osu.Game.Overlays
         {
             base.PopOut();
 
-            // This is here mostly as a performance fix.
-            // If the playlist is not hidden it will update children even when the music controller is hidden (due to AlwaysPresent).
-            playlist.Hide();
-
             this.FadeOut(transition_length, Easing.OutQuint);
             dragContainer.ScaleTo(0.9f, transition_length, Easing.OutQuint);
         }
@@ -548,5 +528,10 @@ namespace osu.Game.Overlays
                 return base.OnDragEnd(e);
             }
         }
+
+        /// <summary>
+        /// Play the next random or playlist track.
+        /// </summary>
+        public void NextTrack() => next();
     }
 }

osu.Game/Overlays/Profile/Header/BottomHeaderContainer.cs

@@ -87,7 +87,12 @@ namespace osu.Game.Overlays.Profile.Header
 
             addSpacer(topLinkContainer);
 
-            if (user.LastVisit.HasValue)
+            if (user.IsOnline)
+            {
+                topLinkContainer.AddText("Currently online");
+                addSpacer(topLinkContainer);
+            }
+            else if (user.LastVisit.HasValue)
             {
                 topLinkContainer.AddText("Last seen ");
                 topLinkContainer.AddText(new DrawableDate(user.LastVisit.Value), embolden);

osu.Game/Overlays/Settings/SettingsFooter.cs

@@ -3,6 +3,7 @@
 
 using System.Collections.Generic;
 using osu.Framework.Allocation;
+using osu.Framework.Development;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Game.Graphics;
@@ -12,7 +13,6 @@ using osu.Game.Graphics.UserInterface;
 using osu.Game.Rulesets;
 using osuTK;
 using osuTK.Graphics;
-using DebugUtils = osu.Game.Utils.DebugUtils;
 
 namespace osu.Game.Overlays.Settings
 {
@@ -59,7 +59,7 @@ namespace osu.Game.Overlays.Settings
                     Text = game.Name,
                     Font = OsuFont.GetFont(size: 18, weight: FontWeight.Bold),
                 },
-                new BuildDisplay(game.Version, DebugUtils.IsDebug)
+                new BuildDisplay(game.Version, DebugUtils.IsDebugBuild)
                 {
                     Anchor = Anchor.TopCentre,
                     Origin = Anchor.TopCentre,

osu.Game/Overlays/Settings/SettingsItem.cs

@@ -63,6 +63,9 @@ namespace osu.Game.Overlays.Settings
 
             set
             {
+                if (bindable != null)
+                    controlWithCurrent?.Current.UnbindFrom(bindable);
+
                 bindable = value;
                 controlWithCurrent?.Current.BindTo(bindable);
 

osu.Game/Screens/Menu/Intro.cs

@@ -165,7 +165,7 @@ namespace osu.Game.Screens.Menu
 
             Scheduler.AddDelayed(this.Exit, fadeOutTime);
 
-            //don't want to fade out completely else we will stop running updates and shit will hit the fan.
+            //don't want to fade out completely else we will stop running updates.
             Game.FadeTo(0.01f, fadeOutTime);
 
             base.OnResuming(last);

osu.Game/Screens/Menu/MainMenu.cs

@@ -28,7 +28,7 @@ namespace osu.Game.Screens.Menu
     {
         private ButtonSystem buttons;
 
-        public override bool HideOverlaysOnEnter => buttons.State == ButtonSystemState.Initial;
+        public override bool HideOverlaysOnEnter => buttons == null || buttons.State == ButtonSystemState.Initial;
 
         protected override bool AllowBackButton => buttons.State != ButtonSystemState.Initial && host.CanExit;
 

osu.Game/Screens/Multi/Multiplayer.cs

@@ -9,6 +9,7 @@ using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
 using osu.Framework.Logging;
 using osu.Framework.Screens;
+using osu.Game.Beatmaps;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Backgrounds;
 using osu.Game.Graphics.Containers;
@@ -185,6 +186,28 @@ namespace osu.Game.Screens.Multi
         {
             this.FadeIn();
             waves.Show();
+
+            beginHandlingTrack();
+        }
+
+        public override void OnResuming(IScreen last)
+        {
+            this.FadeIn(250);
+            this.ScaleTo(1, 250, Easing.OutSine);
+
+            base.OnResuming(last);
+
+            beginHandlingTrack();
+        }
+
+        public override void OnSuspending(IScreen next)
+        {
+            this.ScaleTo(1.1f, 250, Easing.InSine);
+            this.FadeOut(250);
+
+            endHandlingTrack();
+
+            roomManager.TimeBetweenPolls = 0;
         }
 
         public override bool OnExiting(IScreen next)
@@ -193,12 +216,10 @@ namespace osu.Game.Screens.Multi
 
             this.Delay(WaveContainer.DISAPPEAR_DURATION).FadeOut();
 
-            cancelLooping();
-
             if (screenStack.CurrentScreen != null)
                 loungeSubScreen.MakeCurrent();
 
-            updatePollingRate(isIdle.Value);
+            endHandlingTrack();
 
             base.OnExiting(next);
             return false;
@@ -212,23 +233,58 @@ namespace osu.Game.Screens.Multi
             logo.Delay(WaveContainer.DISAPPEAR_DURATION / 2).FadeOut();
         }
 
-        public override void OnResuming(IScreen last)
+        private void beginHandlingTrack()
         {
-            this.FadeIn(250);
+            Beatmap.BindValueChanged(updateTrack, true);
-            this.ScaleTo(1, 250, Easing.OutSine);
-
-            base.OnResuming(last);
-
-            updatePollingRate(isIdle.Value);
         }
 
-        public override void OnSuspending(IScreen next)
+        private void endHandlingTrack()
         {
-            this.ScaleTo(1.1f, 250, Easing.InSine);
-            this.FadeOut(250);
-
             cancelLooping();
-            roomManager.TimeBetweenPolls = 0;
+            Beatmap.ValueChanged -= updateTrack;
+        }
+
+        private void screenPushed(IScreen lastScreen, IScreen newScreen) => subScreenChanged(newScreen);
+
+        private void screenExited(IScreen lastScreen, IScreen newScreen)
+        {
+            subScreenChanged(newScreen);
+
+            if (screenStack.CurrentScreen == null && this.IsCurrentScreen())
+                this.Exit();
+        }
+
+        private void subScreenChanged(IScreen newScreen)
+        {
+            updatePollingRate(isIdle.Value);
+            createButton.FadeTo(newScreen is MatchSubScreen ? 0 : 1, 200);
+
+            updateTrack();
+        }
+
+        private void updateTrack(ValueChangedEvent<WorkingBeatmap> _ = null)
+        {
+            bool isMatch = screenStack.CurrentScreen is MatchSubScreen;
+
+            Beatmap.Disabled = isMatch;
+
+            if (isMatch)
+            {
+                var track = Beatmap.Value?.Track;
+
+                if (track != null)
+                {
+                    track.RestartPoint = Beatmap.Value.Metadata.PreviewTime;
+                    track.Looping = true;
+
+                    if (!track.IsRunning)
+                        track.Restart();
+                }
+            }
+            else
+            {
+                cancelLooping();
+            }
         }
 
         private void cancelLooping()
@@ -236,49 +292,10 @@ namespace osu.Game.Screens.Multi
             var track = Beatmap?.Value?.Track;
 
             if (track != null)
-                track.Looping = false;
-        }
-
-        protected override void Update()
-        {
-            base.Update();
-
-            if (!this.IsCurrentScreen()) return;
-
-            if (screenStack.CurrentScreen is MatchSubScreen)
             {
-                var track = Beatmap.Value.Track;
+                track.Looping = false;
-
+                track.RestartPoint = 0;
-                if (track != null)
-                {
-                    track.Looping = true;
-
-                    if (!track.IsRunning)
-                    {
-                        game.Audio.AddItem(track);
-                        track.Seek(Beatmap.Value.Metadata.PreviewTime);
-                        track.Start();
-                    }
-                }
-
-                createButton.Hide();
             }
-            else if (screenStack.CurrentScreen is LoungeSubScreen)
-                createButton.Show();
-        }
-
-        private void screenPushed(IScreen lastScreen, IScreen newScreen)
-            => updatePollingRate(isIdle.Value);
-
-        private void screenExited(IScreen lastScreen, IScreen newScreen)
-        {
-            if (lastScreen is MatchSubScreen)
-                cancelLooping();
-
-            updatePollingRate(isIdle.Value);
-
-            if (screenStack.CurrentScreen == null && this.IsCurrentScreen())
-                this.Exit();
         }
 
         protected override void Dispose(bool isDisposing)

osu.Game/Users/User.cs

@@ -78,6 +78,9 @@ namespace osu.Game.Users
         [JsonProperty(@"is_active")]
         public bool Active;
 
+        [JsonProperty(@"is_online")]
+        public bool IsOnline;
+
         [JsonProperty(@"pm_friends_only")]
         public bool PMFriendsOnly;
 

osu.Game/Utils/DebugUtils.cs

@@ -1,21 +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.
-
-namespace osu.Game.Utils
-{
-    public static class DebugUtils
-    {
-        public static bool IsDebug
-        {
-            get
-            {
-                // ReSharper disable once RedundantAssignment
-                bool isDebug = false;
-                // Debug.Assert conditions are only evaluated in debug mode
-                System.Diagnostics.Debug.Assert(isDebug = true);
-                // ReSharper disable once ConditionIsAlwaysTrueOrFalse
-                return isDebug;
-            }
-        }
-    }
-}

osu.Game/osu.Game.csproj

@@ -15,7 +15,7 @@
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite.Core" Version="2.2.4" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
     <PackageReference Include="ppy.osu.Game.Resources" Version="2019.609.0" />
-    <PackageReference Include="ppy.osu.Framework" Version="2019.615.0" />
+    <PackageReference Include="ppy.osu.Framework" Version="2019.618.0" />
     <PackageReference Include="SharpCompress" Version="0.23.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />
     <PackageReference Include="SharpRaven" Version="2.4.0" />

osu.iOS.props

@@ -105,8 +105,8 @@
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite.Core" Version="2.2.1" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
     <PackageReference Include="ppy.osu.Game.Resources" Version="2019.609.0" />
-    <PackageReference Include="ppy.osu.Framework" Version="2019.615.0" />
+    <PackageReference Include="ppy.osu.Framework" Version="2019.618.0" />
-    <PackageReference Include="ppy.osu.Framework.iOS" Version="2019.615.0" />
+    <PackageReference Include="ppy.osu.Framework.iOS" Version="2019.618.0" />
     <PackageReference Include="SharpCompress" Version="0.22.0" />
     <PackageReference Include="NUnit" Version="3.11.0" />
     <PackageReference Include="SharpRaven" Version="2.4.0" />