Merge branch 'master' into discord-rpc

.config/dotnet-tools.json

@@ -21,7 +21,7 @@
       ]
     },
     "ppy.localisationanalyser.tools": {
-      "version": "2022.417.0",
+      "version": "2022.607.0",
       "commands": [
         "localisation"
       ]

.github/workflows/sentry-release.yml

@@ -23,4 +23,4 @@ jobs:
           SENTRY_URL: https://sentry.ppy.sh/
         with:
           environment: production
-          version: ${{ github.ref }}
+          version: osu@${{ github.ref_name }}

osu.Android.props

@@ -52,10 +52,10 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="ppy.osu.Game.Resources" Version="2022.527.0" />
-    <PackageReference Include="ppy.osu.Framework.Android" Version="2022.529.0" />
+    <PackageReference Include="ppy.osu.Framework.Android" Version="2022.605.0" />
   </ItemGroup>
   <ItemGroup Label="Transitive Dependencies">
     <!-- Realm needs to be directly referenced in all Xamarin projects, as it will not pull in its transitive dependencies otherwise. -->
-    <PackageReference Include="Realm" Version="10.11.2" />
+    <PackageReference Include="Realm" Version="10.14.0" />
   </ItemGroup>
 </Project>

osu.Game.Rulesets.Mania.Tests/ManiaDifficultyCalculatorTest.cs

@@ -14,11 +14,11 @@ namespace osu.Game.Rulesets.Mania.Tests
     {
         protected override string ResourceAssembly => "osu.Game.Rulesets.Mania";
 
-        [TestCase(2.3449735700206298d, 151, "diffcalc-test")]
+        [TestCase(2.3449735700206298d, 242, "diffcalc-test")]
         public void Test(double expectedStarRating, int expectedMaxCombo, string name)
             => base.Test(expectedStarRating, expectedMaxCombo, name);
 
-        [TestCase(2.7879104989252959d, 151, "diffcalc-test")]
+        [TestCase(2.7879104989252959d, 242, "diffcalc-test")]
         public void TestClockRateAdjusted(double expectedStarRating, int expectedMaxCombo, string name)
             => Test(expectedStarRating, expectedMaxCombo, name, new ManiaModDoubleTime());
 

osu.Game.Rulesets.Mania/Difficulty/ManiaDifficultyAttributes.cs

@@ -29,7 +29,7 @@ namespace osu.Game.Rulesets.Mania.Difficulty
             foreach (var v in base.ToDatabaseAttributes())
                 yield return v;
 
-            // Todo: osu!mania doesn't output MaxCombo attribute for some reason.
+            yield return (ATTRIB_ID_MAX_COMBO, MaxCombo);
             yield return (ATTRIB_ID_DIFFICULTY, StarRating);
             yield return (ATTRIB_ID_GREAT_HIT_WINDOW, GreatHitWindow);
             yield return (ATTRIB_ID_SCORE_MULTIPLIER, ScoreMultiplier);
@@ -39,6 +39,7 @@ namespace osu.Game.Rulesets.Mania.Difficulty
         {
             base.FromDatabaseAttributes(values);
 
+            MaxCombo = (int)values[ATTRIB_ID_MAX_COMBO];
             StarRating = values[ATTRIB_ID_DIFFICULTY];
             GreatHitWindow = values[ATTRIB_ID_GREAT_HIT_WINDOW];
             ScoreMultiplier = values[ATTRIB_ID_SCORE_MULTIPLIER];

osu.Game.Rulesets.Mania/Difficulty/ManiaDifficultyCalculator.cs

@@ -52,10 +52,18 @@ namespace osu.Game.Rulesets.Mania.Difficulty
                 // This is done the way it is to introduce fractional differences in order to match osu-stable for the time being.
                 GreatHitWindow = Math.Ceiling((int)(getHitWindow300(mods) * clockRate) / clockRate),
                 ScoreMultiplier = getScoreMultiplier(mods),
-                MaxCombo = beatmap.HitObjects.Sum(h => h is HoldNote ? 2 : 1),
+                MaxCombo = beatmap.HitObjects.Sum(maxComboForObject)
             };
         }
 
+        private static int maxComboForObject(HitObject hitObject)
+        {
+            if (hitObject is HoldNote hold)
+                return 1 + (int)((hold.EndTime - hold.StartTime) / 100);
+
+            return 1;
+        }
+
         protected override IEnumerable<DifficultyHitObject> CreateDifficultyHitObjects(IBeatmap beatmap, double clockRate)
         {
             var sortedObjects = beatmap.HitObjects.ToArray();

osu.Game.Rulesets.Osu/Mods/OsuModRandom.cs

@@ -50,7 +50,7 @@ namespace osu.Game.Rulesets.Osu.Mods
 
                 if (positionInfo == positionInfos.First())
                 {
-                    positionInfo.DistanceFromPrevious = (float)(rng.NextDouble() * OsuPlayfield.BASE_SIZE.X / 2);
+                    positionInfo.DistanceFromPrevious = (float)(rng.NextDouble() * OsuPlayfield.BASE_SIZE.Y / 2);
                     positionInfo.RelativeAngle = (float)(rng.NextDouble() * 2 * Math.PI - Math.PI);
                 }
                 else

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

@@ -79,7 +79,10 @@ namespace osu.Game.Rulesets.Osu.Objects.Drawables
                 {
                     Result = { BindTarget = SpinsPerMinute },
                 },
-                ticks = new Container<DrawableSpinnerTick>(),
+                ticks = new Container<DrawableSpinnerTick>
+                {
+                    RelativeSizeAxes = Axes.Both,
+                },
                 new AspectContainer
                 {
                     Anchor = Anchor.Centre,

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

@@ -1,6 +1,8 @@
 // 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.Graphics;
+
 namespace osu.Game.Rulesets.Osu.Objects.Drawables
 {
     public class DrawableSpinnerTick : DrawableOsuHitObject
@@ -10,13 +12,15 @@ namespace osu.Game.Rulesets.Osu.Objects.Drawables
         protected DrawableSpinner DrawableSpinner => (DrawableSpinner)ParentHitObject;
 
         public DrawableSpinnerTick()
-            : base(null)
+            : this(null)
         {
         }
 
         public DrawableSpinnerTick(SpinnerTick spinnerTick)
             : base(spinnerTick)
         {
+            Anchor = Anchor.Centre;
+            Origin = Anchor.Centre;
         }
 
         protected override double MaximumJudgementOffset => DrawableSpinner.HitObject.Duration;

osu.Game.Rulesets.Osu/Objects/Spinner.cs

@@ -69,8 +69,8 @@ namespace osu.Game.Rulesets.Osu.Objects
                 double startTime = StartTime + (float)(i + 1) / totalSpins * Duration;
 
                 AddNested(i < SpinsRequired
-                    ? new SpinnerTick { StartTime = startTime, Position = Position }
-                    : new SpinnerBonusTick { StartTime = startTime, Position = Position });
+                    ? new SpinnerTick { StartTime = startTime }
+                    : new SpinnerBonusTick { StartTime = startTime });
             }
         }
 

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

@@ -78,7 +78,9 @@ namespace osu.Game.Rulesets.Osu.Skinning.Legacy
                 }
             });
 
-            if (!(source.FindProvider(s => s.GetTexture("spinner-top") != null) is DefaultLegacySkin))
+            var topProvider = source.FindProvider(s => s.GetTexture("spinner-top") != null);
+
+            if (topProvider is LegacySkinTransformer transformer && !(transformer.Skin is DefaultLegacySkin))
             {
                 AddInternal(ApproachCircle = new Sprite
                 {

osu.Game.Rulesets.Osu/Utils/OsuHitObjectGenerationUtils.cs

@@ -116,6 +116,7 @@ namespace osu.Game.Rulesets.Osu.Utils
             if (!(osuObject is Slider slider))
                 return;
 
+            // No need to update the head and tail circles, since slider handles that when the new slider path is set
             slider.NestedHitObjects.OfType<SliderTick>().ForEach(h => h.Position = new Vector2(OsuPlayfield.BASE_SIZE.X - h.Position.X, h.Position.Y));
             slider.NestedHitObjects.OfType<SliderRepeat>().ForEach(h => h.Position = new Vector2(OsuPlayfield.BASE_SIZE.X - h.Position.X, h.Position.Y));
 
@@ -137,6 +138,7 @@ namespace osu.Game.Rulesets.Osu.Utils
             if (!(osuObject is Slider slider))
                 return;
 
+            // No need to update the head and tail circles, since slider handles that when the new slider path is set
             slider.NestedHitObjects.OfType<SliderTick>().ForEach(h => h.Position = new Vector2(h.Position.X, OsuPlayfield.BASE_SIZE.Y - h.Position.Y));
             slider.NestedHitObjects.OfType<SliderRepeat>().ForEach(h => h.Position = new Vector2(h.Position.X, OsuPlayfield.BASE_SIZE.Y - h.Position.Y));
 
@@ -146,5 +148,41 @@ namespace osu.Game.Rulesets.Osu.Utils
 
             slider.Path = new SliderPath(controlPoints, slider.Path.ExpectedDistance.Value);
         }
+
+        /// <summary>
+        /// Rotate a slider about its start position by the specified angle.
+        /// </summary>
+        /// <param name="slider">The slider to be rotated.</param>
+        /// <param name="rotation">The angle, measured in radians, to rotate the slider by.</param>
+        public static void RotateSlider(Slider slider, float rotation)
+        {
+            void rotateNestedObject(OsuHitObject nested) => nested.Position = rotateVector(nested.Position - slider.Position, rotation) + slider.Position;
+
+            // No need to update the head and tail circles, since slider handles that when the new slider path is set
+            slider.NestedHitObjects.OfType<SliderTick>().ForEach(rotateNestedObject);
+            slider.NestedHitObjects.OfType<SliderRepeat>().ForEach(rotateNestedObject);
+
+            var controlPoints = slider.Path.ControlPoints.Select(p => new PathControlPoint(p.Position, p.Type)).ToArray();
+            foreach (var point in controlPoints)
+                point.Position = rotateVector(point.Position, rotation);
+
+            slider.Path = new SliderPath(controlPoints, slider.Path.ExpectedDistance.Value);
+        }
+
+        /// <summary>
+        /// Rotate a vector by the specified angle.
+        /// </summary>
+        /// <param name="vector">The vector to be rotated.</param>
+        /// <param name="rotation">The angle, measured in radians, to rotate the vector by.</param>
+        /// <returns>The rotated vector.</returns>
+        private static Vector2 rotateVector(Vector2 vector, float rotation)
+        {
+            float angle = MathF.Atan2(vector.Y, vector.X) + rotation;
+            float length = vector.Length;
+            return new Vector2(
+                length * MathF.Cos(angle),
+                length * MathF.Sin(angle)
+            );
+        }
     }
 }

osu.Game.Rulesets.Osu/Utils/OsuHitObjectGenerationUtils_Reposition.cs

@@ -5,6 +5,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using osu.Framework.Graphics.Primitives;
+using osu.Framework.Utils;
 using osu.Game.Rulesets.Osu.Objects;
 using osu.Game.Rulesets.Osu.UI;
 using osuTK;
@@ -37,15 +38,23 @@ namespace osu.Game.Rulesets.Osu.Utils
             foreach (OsuHitObject hitObject in hitObjects)
             {
                 Vector2 relativePosition = hitObject.Position - previousPosition;
-                float absoluteAngle = (float)Math.Atan2(relativePosition.Y, relativePosition.X);
+                float absoluteAngle = MathF.Atan2(relativePosition.Y, relativePosition.X);
                 float relativeAngle = absoluteAngle - previousAngle;
 
-                positionInfos.Add(new ObjectPositionInfo(hitObject)
+                ObjectPositionInfo positionInfo;
+                positionInfos.Add(positionInfo = new ObjectPositionInfo(hitObject)
                 {
                     RelativeAngle = relativeAngle,
                     DistanceFromPrevious = relativePosition.Length
                 });
 
+                if (hitObject is Slider slider)
+                {
+                    float absoluteRotation = getSliderRotation(slider);
+                    positionInfo.Rotation = absoluteRotation - absoluteAngle;
+                    absoluteAngle = absoluteRotation;
+                }
+
                 previousPosition = hitObject.EndPosition;
                 previousAngle = absoluteAngle;
             }
@@ -70,7 +79,7 @@ namespace osu.Game.Rulesets.Osu.Utils
 
                 if (hitObject is Spinner)
                 {
-                    previous = null;
+                    previous = current;
                     continue;
                 }
 
@@ -123,17 +132,24 @@ namespace osu.Game.Rulesets.Osu.Utils
             float previousAbsoluteAngle = 0f;
 
             if (previous != null)
+            {
+                if (previous.HitObject is Slider s)
+                {
+                    previousAbsoluteAngle = getSliderRotation(s);
+                }
+                else
                 {
                     Vector2 earliestPosition = beforePrevious?.HitObject.EndPosition ?? playfield_centre;
                     Vector2 relativePosition = previous.HitObject.Position - earliestPosition;
-                previousAbsoluteAngle = (float)Math.Atan2(relativePosition.Y, relativePosition.X);
+                    previousAbsoluteAngle = MathF.Atan2(relativePosition.Y, relativePosition.X);
+                }
             }
 
             float absoluteAngle = previousAbsoluteAngle + current.PositionInfo.RelativeAngle;
 
             var posRelativeToPrev = new Vector2(
-                current.PositionInfo.DistanceFromPrevious * (float)Math.Cos(absoluteAngle),
-                current.PositionInfo.DistanceFromPrevious * (float)Math.Sin(absoluteAngle)
+                current.PositionInfo.DistanceFromPrevious * MathF.Cos(absoluteAngle),
+                current.PositionInfo.DistanceFromPrevious * MathF.Sin(absoluteAngle)
             );
 
             Vector2 lastEndPosition = previous?.EndPositionModified ?? playfield_centre;
@@ -141,6 +157,19 @@ namespace osu.Game.Rulesets.Osu.Utils
             posRelativeToPrev = RotateAwayFromEdge(lastEndPosition, posRelativeToPrev);
 
             current.PositionModified = lastEndPosition + posRelativeToPrev;
+
+            if (!(current.HitObject is Slider slider))
+                return;
+
+            absoluteAngle = MathF.Atan2(posRelativeToPrev.Y, posRelativeToPrev.X);
+
+            Vector2 centreOfMassOriginal = calculateCentreOfMass(slider);
+            Vector2 centreOfMassModified = rotateVector(centreOfMassOriginal, current.PositionInfo.Rotation + absoluteAngle - getSliderRotation(slider));
+            centreOfMassModified = RotateAwayFromEdge(current.PositionModified, centreOfMassModified);
+
+            float relativeRotation = MathF.Atan2(centreOfMassModified.Y, centreOfMassModified.X) - MathF.Atan2(centreOfMassOriginal.Y, centreOfMassOriginal.X);
+            if (!Precision.AlmostEquals(relativeRotation, 0))
+                RotateSlider(slider, relativeRotation);
         }
 
         /// <summary>
@@ -172,13 +201,13 @@ namespace osu.Game.Rulesets.Osu.Utils
             var previousPosition = workingObject.PositionModified;
 
             // Clamp slider position to the placement area
-            // If the slider is larger than the playfield, force it to stay at the original position
+            // If the slider is larger than the playfield, at least make sure that the head circle is inside the playfield
             float newX = possibleMovementBounds.Width < 0
-                ? workingObject.PositionOriginal.X
+                ? Math.Clamp(possibleMovementBounds.Left, 0, OsuPlayfield.BASE_SIZE.X)
                 : Math.Clamp(previousPosition.X, possibleMovementBounds.Left, possibleMovementBounds.Right);
 
             float newY = possibleMovementBounds.Height < 0
-                ? workingObject.PositionOriginal.Y
+                ? Math.Clamp(possibleMovementBounds.Top, 0, OsuPlayfield.BASE_SIZE.Y)
                 : Math.Clamp(previousPosition.Y, possibleMovementBounds.Top, possibleMovementBounds.Bottom);
 
             slider.Position = workingObject.PositionModified = new Vector2(newX, newY);
@@ -287,6 +316,45 @@ namespace osu.Game.Rulesets.Osu.Utils
             );
         }
 
+        /// <summary>
+        /// Estimate the centre of mass of a slider relative to its start position.
+        /// </summary>
+        /// <param name="slider">The slider to process.</param>
+        /// <returns>The centre of mass of the slider.</returns>
+        private static Vector2 calculateCentreOfMass(Slider slider)
+        {
+            const double sample_step = 50;
+
+            // just sample the start and end positions if the slider is too short
+            if (slider.Distance <= sample_step)
+            {
+                return Vector2.Divide(slider.Path.PositionAt(1), 2);
+            }
+
+            int count = 0;
+            Vector2 sum = Vector2.Zero;
+            double pathDistance = slider.Distance;
+
+            for (double i = 0; i < pathDistance; i += sample_step)
+            {
+                sum += slider.Path.PositionAt(i / pathDistance);
+                count++;
+            }
+
+            return sum / count;
+        }
+
+        /// <summary>
+        /// Get the absolute rotation of a slider, defined as the angle from its start position to the end of its path.
+        /// </summary>
+        /// <param name="slider">The slider to process.</param>
+        /// <returns>The angle in radians.</returns>
+        private static float getSliderRotation(Slider slider)
+        {
+            var endPositionVector = slider.Path.PositionAt(1);
+            return MathF.Atan2(endPositionVector.Y, endPositionVector.X);
+        }
+
         public class ObjectPositionInfo
         {
             /// <summary>
@@ -309,6 +377,13 @@ namespace osu.Game.Rulesets.Osu.Utils
             /// </remarks>
             public float DistanceFromPrevious { get; set; }
 
+            /// <summary>
+            /// The rotation of the hit object, relative to its jump angle.
+            /// For sliders, this is defined as the angle from the slider's start position to the end of its path, relative to its jump angle.
+            /// For hit circles and spinners, this property is ignored.
+            /// </summary>
+            public float Rotation { get; set; }
+
             /// <summary>
             /// The hit object associated with this <see cref="ObjectPositionInfo"/>.
             /// </summary>

osu.Game.Rulesets.Taiko/UI/TaikoPlayfield.cs

@@ -8,6 +8,7 @@ using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Pooling;
+using osu.Framework.Graphics.Primitives;
 using osu.Game.Graphics;
 using osu.Game.Rulesets.Objects.Drawables;
 using osu.Game.Rulesets.Judgements;
@@ -321,12 +322,14 @@ namespace osu.Game.Rulesets.Taiko.UI
 
         private class ProxyContainer : LifetimeManagementContainer
         {
-            public new MarginPadding Padding
-            {
-                set => base.Padding = value;
-            }
-
             public void Add(Drawable proxy) => AddInternal(proxy);
+
+            public override bool UpdateSubTreeMasking(Drawable source, RectangleF maskingBounds)
+            {
+                // DrawableHitObject disables masking.
+                // Hitobject content is proxied and unproxied based on hit status and the IsMaskedAway value could get stuck because of this.
+                return false;
+            }
         }
     }
 }

osu.Game.Tests/Chat/TestSceneChannelManager.cs

@@ -25,7 +25,7 @@ namespace osu.Game.Tests.Chat
         [SetUp]
         public void Setup() => Schedule(() =>
         {
-            var container = new ChannelManagerContainer();
+            var container = new ChannelManagerContainer(API);
             Child = container;
             channelManager = container.ChannelManager;
         });
@@ -145,11 +145,11 @@ namespace osu.Game.Tests.Chat
         private class ChannelManagerContainer : CompositeDrawable
         {
             [Cached]
-            public ChannelManager ChannelManager { get; } = new ChannelManager();
+            public ChannelManager ChannelManager { get; }
 
-            public ChannelManagerContainer()
+            public ChannelManagerContainer(IAPIProvider apiProvider)
             {
-                InternalChild = ChannelManager;
+                InternalChild = ChannelManager = new ChannelManager(apiProvider);
             }
         }
     }

osu.Game.Tests/Database/BeatmapImporterTests.cs

@@ -710,7 +710,7 @@ namespace osu.Game.Tests.Database
 
                 var imported = await LoadOszIntoStore(importer, realm.Realm);
 
-                realm.Realm.Write(() =>
+                await realm.Realm.WriteAsync(() =>
                 {
                     foreach (var b in imported.Beatmaps)
                         b.OnlineID = -1;

osu.Game.Tests/Gameplay/TestSceneScoreProcessor.cs

@@ -59,30 +59,34 @@ namespace osu.Game.Tests.Gameplay
             scoreProcessor.ApplyResult(new JudgementResult(beatmap.HitObjects[0], new TestJudgement(HitResult.Great)) { Type = HitResult.Great });
             Assert.That(scoreProcessor.TotalScore.Value, Is.EqualTo(1_000_000));
             Assert.That(scoreProcessor.JudgedHits, Is.EqualTo(1));
+            Assert.That(scoreProcessor.Combo.Value, Is.EqualTo(1));
 
             // No header shouldn't cause any change
-            scoreProcessor.ResetFromReplayFrame(new OsuRuleset(), new OsuReplayFrame());
+            scoreProcessor.ResetFromReplayFrame(new OsuReplayFrame());
 
             Assert.That(scoreProcessor.TotalScore.Value, Is.EqualTo(1_000_000));
             Assert.That(scoreProcessor.JudgedHits, Is.EqualTo(1));
+            Assert.That(scoreProcessor.Combo.Value, Is.EqualTo(1));
 
             // Reset with a miss instead.
-            scoreProcessor.ResetFromReplayFrame(new OsuRuleset(), new OsuReplayFrame
+            scoreProcessor.ResetFromReplayFrame(new OsuReplayFrame
             {
                 Header = new FrameHeader(0, 0, 0, new Dictionary<HitResult, int> { { HitResult.Miss, 1 } }, DateTimeOffset.Now)
             });
 
             Assert.That(scoreProcessor.TotalScore.Value, Is.Zero);
             Assert.That(scoreProcessor.JudgedHits, Is.EqualTo(1));
+            Assert.That(scoreProcessor.Combo.Value, Is.EqualTo(0));
 
             // Reset with no judged hit.
-            scoreProcessor.ResetFromReplayFrame(new OsuRuleset(), new OsuReplayFrame
+            scoreProcessor.ResetFromReplayFrame(new OsuReplayFrame
             {
                 Header = new FrameHeader(0, 0, 0, new Dictionary<HitResult, int>(), DateTimeOffset.Now)
             });
 
             Assert.That(scoreProcessor.TotalScore.Value, Is.Zero);
             Assert.That(scoreProcessor.JudgedHits, Is.Zero);
+            Assert.That(scoreProcessor.Combo.Value, Is.EqualTo(0));
         }
 
         private class TestJudgement : Judgement

osu.Game.Tests/Skins/TestSceneSkinConfigurationLookup.cs

@@ -59,11 +59,13 @@ namespace osu.Game.Tests.Skins
             AddAssert("Check float parse lookup", () => requester.GetConfig<string, float>("FloatTest")?.Value == 1.1f);
         }
 
-        [Test]
-        public void TestBoolLookup()
+        [TestCase("0", false)]
+        [TestCase("1", true)]
+        [TestCase("2", true)] // https://github.com/ppy/osu/issues/18579
+        public void TestBoolLookup(string originalValue, bool expectedParsedValue)
         {
-            AddStep("Add config values", () => userSource.Configuration.ConfigDictionary["BoolTest"] = "1");
-            AddAssert("Check bool parse lookup", () => requester.GetConfig<string, bool>("BoolTest")?.Value == true);
+            AddStep("Add config values", () => userSource.Configuration.ConfigDictionary["BoolTest"] = originalValue);
+            AddAssert("Check bool parse lookup", () => requester.GetConfig<string, bool>("BoolTest")?.Value == expectedParsedValue);
         }
 
         [Test]

osu.Game.Tests/Visual/Editing/TestSceneTapButton.cs

@@ -0,0 +1,48 @@
+// 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.Game.Overlays;
+using osu.Game.Screens.Edit.Timing;
+using osuTK;
+using osuTK.Input;
+
+namespace osu.Game.Tests.Visual.Editing
+{
+    public class TestSceneTapButton : OsuManualInputManagerTestScene
+    {
+        private TapButton tapButton;
+
+        [Cached]
+        private readonly OverlayColourProvider overlayColour = new OverlayColourProvider(OverlayColourScheme.Aquamarine);
+
+        [Test]
+        public void TestBasic()
+        {
+            AddStep("create button", () =>
+            {
+                Child = tapButton = new TapButton
+                {
+                    Anchor = Anchor.Centre,
+                    Origin = Anchor.Centre,
+                    Scale = new Vector2(4),
+                };
+            });
+
+            bool pressed = false;
+
+            AddRepeatStep("Press button", () =>
+            {
+                InputManager.MoveMouseTo(tapButton);
+                if (!pressed)
+                    InputManager.PressButton(MouseButton.Left);
+                else
+                    InputManager.ReleaseButton(MouseButton.Left);
+
+                pressed = !pressed;
+            }, 100);
+        }
+    }
+}

osu.Game.Tests/Visual/Editing/TestSceneTapTimingControl.cs

@@ -11,7 +11,7 @@ using osu.Framework.Graphics.Containers;
 using osu.Framework.Testing;
 using osu.Game.Beatmaps.ControlPoints;
 using osu.Game.Graphics.Sprites;
-using osu.Game.Graphics.UserInterfaceV2;
+using osu.Game.Graphics.UserInterface;
 using osu.Game.Overlays;
 using osu.Game.Screens.Edit;
 using osu.Game.Screens.Edit.Timing;
@@ -77,28 +77,6 @@ namespace osu.Game.Tests.Visual.Editing
                 timingInfo.Text = $"offset: {selectedGroup.Value.Time:N2} bpm: {selectedGroup.Value.ControlPoints.OfType<TimingControlPoint>().First().BPM:N2}";
         }
 
-        [Test]
-        public void TestTapThenReset()
-        {
-            AddStep("click tap button", () =>
-            {
-                control.ChildrenOfType<RoundedButton>()
-                       .Last()
-                       .TriggerClick();
-            });
-
-            AddUntilStep("wait for track playing", () => Clock.IsRunning);
-
-            AddStep("click reset button", () =>
-            {
-                control.ChildrenOfType<RoundedButton>()
-                       .First()
-                       .TriggerClick();
-            });
-
-            AddUntilStep("wait for track stopped", () => !Clock.IsRunning);
-        }
-
         [Test]
         public void TestBasic()
         {
@@ -109,7 +87,7 @@ namespace osu.Game.Tests.Visual.Editing
 
             AddStep("click tap button", () =>
             {
-                control.ChildrenOfType<RoundedButton>()
+                control.ChildrenOfType<OsuButton>()
                        .Last()
                        .TriggerClick();
             });
@@ -123,6 +101,28 @@ namespace osu.Game.Tests.Visual.Editing
             });
         }
 
+        [Test]
+        public void TestTapThenReset()
+        {
+            AddStep("click tap button", () =>
+            {
+                control.ChildrenOfType<OsuButton>()
+                       .Last()
+                       .TriggerClick();
+            });
+
+            AddUntilStep("wait for track playing", () => Clock.IsRunning);
+
+            AddStep("click reset button", () =>
+            {
+                control.ChildrenOfType<OsuButton>()
+                       .First()
+                       .TriggerClick();
+            });
+
+            AddUntilStep("wait for track stopped", () => !Clock.IsRunning);
+        }
+
         protected override void Dispose(bool isDisposing)
         {
             Beatmap.Disabled = false;

osu.Game.Tests/Visual/Editing/TestSceneTimelineZoom.cs

@@ -0,0 +1,48 @@
+// 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.Graphics;
+using osu.Framework.Utils;
+
+namespace osu.Game.Tests.Visual.Editing
+{
+    public class TestSceneTimelineZoom : TimelineTestScene
+    {
+        public override Drawable CreateTestComponent() => Empty();
+
+        [Test]
+        public void TestVisibleRangeUpdatesOnZoomChange()
+        {
+            double initialVisibleRange = 0;
+
+            AddStep("reset zoom", () => TimelineArea.Timeline.Zoom = 100);
+            AddStep("get initial range", () => initialVisibleRange = TimelineArea.Timeline.VisibleRange);
+
+            AddStep("scale zoom", () => TimelineArea.Timeline.Zoom = 200);
+            AddAssert("range halved", () => Precision.AlmostEquals(TimelineArea.Timeline.VisibleRange, initialVisibleRange / 2, 1));
+            AddStep("descale zoom", () => TimelineArea.Timeline.Zoom = 50);
+            AddAssert("range doubled", () => Precision.AlmostEquals(TimelineArea.Timeline.VisibleRange, initialVisibleRange * 2, 1));
+
+            AddStep("restore zoom", () => TimelineArea.Timeline.Zoom = 100);
+            AddAssert("range restored", () => Precision.AlmostEquals(TimelineArea.Timeline.VisibleRange, initialVisibleRange, 1));
+        }
+
+        [Test]
+        public void TestVisibleRangeConstantOnSizeChange()
+        {
+            double initialVisibleRange = 0;
+
+            AddStep("reset timeline size", () => TimelineArea.Timeline.Width = 1);
+            AddStep("get initial range", () => initialVisibleRange = TimelineArea.Timeline.VisibleRange);
+
+            AddStep("scale timeline size", () => TimelineArea.Timeline.Width = 2);
+            AddAssert("same range", () => TimelineArea.Timeline.VisibleRange == initialVisibleRange);
+            AddStep("descale timeline size", () => TimelineArea.Timeline.Width = 0.5f);
+            AddAssert("same range", () => TimelineArea.Timeline.VisibleRange == initialVisibleRange);
+
+            AddStep("restore timeline size", () => TimelineArea.Timeline.Width = 1);
+            AddAssert("same range", () => TimelineArea.Timeline.VisibleRange == initialVisibleRange);
+        }
+    }
+}

osu.Game.Tests/Visual/Editing/TestSceneTimingScreen.cs

@@ -1,14 +1,18 @@
 // 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.Linq;
 using NUnit.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics.Containers;
+using osu.Framework.Testing;
 using osu.Game.Overlays;
 using osu.Game.Rulesets.Edit;
 using osu.Game.Rulesets.Osu;
 using osu.Game.Screens.Edit;
 using osu.Game.Screens.Edit.Timing;
+using osu.Game.Screens.Edit.Timing.RowAttributes;
+using osuTK.Input;
 
 namespace osu.Game.Tests.Visual.Editing
 {
@@ -22,6 +26,8 @@ namespace osu.Game.Tests.Visual.Editing
         [Cached]
         private readonly OverlayColourProvider colourProvider = new OverlayColourProvider(OverlayColourScheme.Blue);
 
+        private TimingScreen timingScreen;
+
         protected override bool ScrollUsingMouseWheel => false;
 
         public TestSceneTimingScreen()
@@ -36,12 +42,54 @@ namespace osu.Game.Tests.Visual.Editing
             Beatmap.Value = CreateWorkingBeatmap(editorBeatmap.PlayableBeatmap);
             Beatmap.Disabled = true;
 
-            Child = new TimingScreen
+            Child = timingScreen = new TimingScreen
             {
                 State = { Value = Visibility.Visible },
             };
         }
 
+        [SetUpSteps]
+        public void SetUpSteps()
+        {
+            AddStep("Stop clock", () => Clock.Stop());
+
+            AddUntilStep("wait for rows to load", () => Child.ChildrenOfType<EffectRowAttribute>().Any());
+        }
+
+        [Test]
+        public void TestTrackingCurrentTimeWhileRunning()
+        {
+            AddStep("Select first effect point", () =>
+            {
+                InputManager.MoveMouseTo(Child.ChildrenOfType<EffectRowAttribute>().First());
+                InputManager.Click(MouseButton.Left);
+            });
+
+            AddUntilStep("Selection changed", () => timingScreen.SelectedGroup.Value.Time == 54670);
+            AddUntilStep("Ensure seeked to correct time", () => Clock.CurrentTimeAccurate == 54670);
+
+            AddStep("Seek to just before next point", () => Clock.Seek(69000));
+            AddStep("Start clock", () => Clock.Start());
+
+            AddUntilStep("Selection changed", () => timingScreen.SelectedGroup.Value.Time == 69670);
+        }
+
+        [Test]
+        public void TestTrackingCurrentTimeWhilePaused()
+        {
+            AddStep("Select first effect point", () =>
+            {
+                InputManager.MoveMouseTo(Child.ChildrenOfType<EffectRowAttribute>().First());
+                InputManager.Click(MouseButton.Left);
+            });
+
+            AddUntilStep("Selection changed", () => timingScreen.SelectedGroup.Value.Time == 54670);
+            AddUntilStep("Ensure seeked to correct time", () => Clock.CurrentTimeAccurate == 54670);
+
+            AddStep("Seek to later", () => Clock.Seek(80000));
+            AddUntilStep("Selection changed", () => timingScreen.SelectedGroup.Value.Time == 69670);
+        }
+
         protected override void Dispose(bool isDisposing)
         {
             Beatmap.Disabled = false;

osu.Game.Tests/Visual/Editing/TestSceneZoomableScrollContainer.cs

@@ -44,7 +44,12 @@ namespace osu.Game.Tests.Visual.Editing
                                 RelativeSizeAxes = Axes.Both,
                                 Colour = OsuColour.Gray(30)
                             },
-                            scrollContainer = new ZoomableScrollContainer { RelativeSizeAxes = Axes.Both }
+                            scrollContainer = new ZoomableScrollContainer
+                            {
+                                Anchor = Anchor.Centre,
+                                Origin = Anchor.Centre,
+                                RelativeSizeAxes = Axes.Both,
+                            }
                         }
                     },
                     new MenuCursor()
@@ -62,7 +67,15 @@ namespace osu.Game.Tests.Visual.Editing
         [Test]
         public void TestWidthInitialization()
         {
-            AddAssert("Inner container width was initialized", () => innerBox.DrawWidth > 0);
+            AddAssert("Inner container width was initialized", () => innerBox.DrawWidth == scrollContainer.DrawWidth);
+        }
+
+        [Test]
+        public void TestWidthUpdatesOnDrawSizeChanges()
+        {
+            AddStep("Shrink scroll container", () => scrollContainer.Width = 0.5f);
+            AddAssert("Scroll container width shrunk", () => scrollContainer.DrawWidth == scrollContainer.Parent.DrawWidth / 2);
+            AddAssert("Inner container width matches scroll container", () => innerBox.DrawWidth == scrollContainer.DrawWidth);
         }
 
         [Test]

osu.Game.Tests/Visual/Multiplayer/MultiplayerGameplayLeaderboardTestScene.cs

@@ -18,7 +18,6 @@ using osu.Game.Online.API.Requests.Responses;
 using osu.Game.Online.Multiplayer;
 using osu.Game.Online.Spectator;
 using osu.Game.Replays.Legacy;
-using osu.Game.Rulesets.Osu.Scoring;
 using osu.Game.Rulesets.Scoring;
 using osu.Game.Scoring;
 using osu.Game.Screens.Play.HUD;
@@ -27,7 +26,7 @@ namespace osu.Game.Tests.Visual.Multiplayer
 {
     public abstract class MultiplayerGameplayLeaderboardTestScene : OsuTestScene
     {
-        private const int total_users = 16;
+        protected const int TOTAL_USERS = 16;
 
         protected readonly BindableList<MultiplayerRoomUser> MultiplayerUsers = new BindableList<MultiplayerRoomUser>();
 
@@ -35,9 +34,10 @@ namespace osu.Game.Tests.Visual.Multiplayer
 
         protected virtual MultiplayerRoomUser CreateUser(int userId) => new MultiplayerRoomUser(userId);
 
-        protected abstract MultiplayerGameplayLeaderboard CreateLeaderboard(OsuScoreProcessor scoreProcessor);
+        protected abstract MultiplayerGameplayLeaderboard CreateLeaderboard();
 
         private readonly BindableList<int> multiplayerUserIds = new BindableList<int>();
+        private readonly BindableDictionary<int, SpectatorState> watchedUserStates = new BindableDictionary<int, SpectatorState>();
 
         private OsuConfigManager config;
 
@@ -81,6 +81,9 @@ namespace osu.Game.Tests.Visual.Multiplayer
 
             multiplayerClient.SetupGet(c => c.CurrentMatchPlayingUserIds)
                              .Returns(() => multiplayerUserIds);
+
+            spectatorClient.SetupGet(c => c.WatchedUserStates)
+                           .Returns(() => watchedUserStates);
         }
 
         [SetUpSteps]
@@ -100,8 +103,26 @@ namespace osu.Game.Tests.Visual.Multiplayer
             AddStep("populate users", () =>
             {
                 MultiplayerUsers.Clear();
-                for (int i = 0; i < total_users; i++)
-                    MultiplayerUsers.Add(CreateUser(i));
+
+                for (int i = 0; i < TOTAL_USERS; i++)
+                {
+                    var user = CreateUser(i);
+
+                    MultiplayerUsers.Add(user);
+
+                    watchedUserStates[i] = new SpectatorState
+                    {
+                        BeatmapID = 0,
+                        RulesetID = 0,
+                        Mods = user.Mods,
+                        MaximumScoringValues = new ScoringValues
+                        {
+                            BaseScore = 10000,
+                            MaxCombo = 1000,
+                            CountBasicHitObjects = 1000
+                        }
+                    };
+                }
             });
 
             AddStep("create leaderboard", () =>
@@ -109,13 +130,8 @@ namespace osu.Game.Tests.Visual.Multiplayer
                 Leaderboard?.Expire();
 
                 Beatmap.Value = CreateWorkingBeatmap(Ruleset.Value);
-                var playableBeatmap = Beatmap.Value.GetPlayableBeatmap(Ruleset.Value);
-                OsuScoreProcessor scoreProcessor = new OsuScoreProcessor();
-                scoreProcessor.ApplyBeatmap(playableBeatmap);
 
-                Child = scoreProcessor;
-
-                LoadComponentAsync(Leaderboard = CreateLeaderboard(scoreProcessor), Add);
+                LoadComponentAsync(Leaderboard = CreateLeaderboard(), Add);
             });
 
             AddUntilStep("wait for load", () => Leaderboard.IsLoaded);

osu.Game.Tests/Visual/Multiplayer/TestSceneMultiSpectatorLeaderboard.cs

@@ -4,11 +4,11 @@
 using System.Collections.Generic;
 using System.Linq;
 using NUnit.Framework;
+using osu.Framework.Graphics;
 using osu.Framework.Testing;
 using osu.Framework.Timing;
 using osu.Game.Online.API.Requests.Responses;
 using osu.Game.Online.Multiplayer;
-using osu.Game.Rulesets.Osu.Scoring;
 using osu.Game.Screens.OnlinePlay.Multiplayer.Spectate;
 using osu.Game.Screens.Play.HUD;
 
@@ -24,7 +24,7 @@ namespace osu.Game.Tests.Visual.Multiplayer
         {
             AddStep("reset", () =>
             {
-                Clear();
+                leaderboard?.RemoveAndDisposeImmediately();
 
                 clocks = new Dictionary<int, ManualClock>
                 {
@@ -32,21 +32,18 @@ namespace osu.Game.Tests.Visual.Multiplayer
                     { PLAYER_2_ID, new ManualClock() }
                 };
 
-                foreach ((int userId, var _) in clocks)
+                foreach ((int userId, _) in clocks)
                 {
                     SpectatorClient.SendStartPlay(userId, 0);
-                    OnlinePlayDependencies.MultiplayerClient.AddUser(new APIUser { Id = userId });
+                    OnlinePlayDependencies.MultiplayerClient.AddUser(new APIUser { Id = userId }, true);
                 }
             });
 
             AddStep("create leaderboard", () =>
             {
                 Beatmap.Value = CreateWorkingBeatmap(Ruleset.Value);
-                var playable = Beatmap.Value.GetPlayableBeatmap(Ruleset.Value);
-                var scoreProcessor = new OsuScoreProcessor();
-                scoreProcessor.ApplyBeatmap(playable);
 
-                LoadComponentAsync(leaderboard = new MultiSpectatorLeaderboard(Ruleset.Value, scoreProcessor, clocks.Keys.Select(id => new MultiplayerRoomUser(id)).ToArray())
+                LoadComponentAsync(leaderboard = new MultiSpectatorLeaderboard(clocks.Keys.Select(id => new MultiplayerRoomUser(id)).ToArray())
                 {
                     Expanded = { Value = true }
                 }, Add);

osu.Game.Tests/Visual/Multiplayer/TestSceneMultiplayerGameplayLeaderboard.cs

@@ -1,22 +1,58 @@
 // 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.Collections.Generic;
 using System.Linq;
+using NUnit.Framework;
 using osu.Framework.Graphics;
-using osu.Game.Rulesets.Osu.Scoring;
+using osu.Game.Online.API;
+using osu.Game.Online.Multiplayer;
+using osu.Game.Rulesets.Mods;
+using osu.Game.Rulesets.Osu.Mods;
 using osu.Game.Screens.Play.HUD;
 
 namespace osu.Game.Tests.Visual.Multiplayer
 {
     public class TestSceneMultiplayerGameplayLeaderboard : MultiplayerGameplayLeaderboardTestScene
     {
-        protected override MultiplayerGameplayLeaderboard CreateLeaderboard(OsuScoreProcessor scoreProcessor)
+        protected override MultiplayerRoomUser CreateUser(int userId)
         {
-            return new MultiplayerGameplayLeaderboard(Ruleset.Value, scoreProcessor, MultiplayerUsers.ToArray())
+            var user = base.CreateUser(userId);
+
+            if (userId == TOTAL_USERS - 1)
+                user.Mods = new[] { new APIMod(new OsuModNoFail()) };
+
+            return user;
+        }
+
+        protected override MultiplayerGameplayLeaderboard CreateLeaderboard()
+        {
+            return new TestLeaderboard(MultiplayerUsers.ToArray())
             {
                 Anchor = Anchor.Centre,
                 Origin = Anchor.Centre,
             };
         }
+
+        [Test]
+        public void TestPerUserMods()
+        {
+            AddStep("first user has no mods", () => Assert.That(((TestLeaderboard)Leaderboard).UserMods[0], Is.Empty));
+            AddStep("last user has NF mod", () =>
+            {
+                Assert.That(((TestLeaderboard)Leaderboard).UserMods[TOTAL_USERS - 1], Has.One.Items);
+                Assert.That(((TestLeaderboard)Leaderboard).UserMods[TOTAL_USERS - 1].Single(), Is.TypeOf<OsuModNoFail>());
+            });
+        }
+
+        private class TestLeaderboard : MultiplayerGameplayLeaderboard
+        {
+            public Dictionary<int, IReadOnlyList<Mod>> UserMods => UserScores.ToDictionary(kvp => kvp.Key, kvp => kvp.Value.ScoreProcessor.Mods);
+
+            public TestLeaderboard(MultiplayerRoomUser[] users)
+                : base(users)
+            {
+            }
+        }
     }
 }

osu.Game.Tests/Visual/Multiplayer/TestSceneMultiplayerGameplayLeaderboardTeams.cs

@@ -5,7 +5,6 @@ using System.Linq;
 using osu.Framework.Graphics;
 using osu.Game.Online.Multiplayer;
 using osu.Game.Online.Multiplayer.MatchTypes.TeamVersus;
-using osu.Game.Rulesets.Osu.Scoring;
 using osu.Game.Screens.OnlinePlay.Multiplayer;
 using osu.Game.Screens.Play.HUD;
 
@@ -25,8 +24,8 @@ namespace osu.Game.Tests.Visual.Multiplayer
             return user;
         }
 
-        protected override MultiplayerGameplayLeaderboard CreateLeaderboard(OsuScoreProcessor scoreProcessor) =>
-            new MultiplayerGameplayLeaderboard(Ruleset.Value, scoreProcessor, MultiplayerUsers.ToArray())
+        protected override MultiplayerGameplayLeaderboard CreateLeaderboard() =>
+            new MultiplayerGameplayLeaderboard(MultiplayerUsers.ToArray())
             {
                 Anchor = Anchor.Centre,
                 Origin = Anchor.Centre,

osu.Game.Tests/Visual/Navigation/TestSceneScreenNavigation.cs

@@ -609,8 +609,6 @@ namespace osu.Game.Tests.Visual.Navigation
             public ModSelectOverlay ModSelectOverlay => ModSelect;
 
             public BeatmapOptionsOverlay BeatmapOptionsOverlay => BeatmapOptions;
-
-            protected override bool DisplayStableImportPrompt => false;
         }
     }
 }

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

@@ -39,7 +39,7 @@ namespace osu.Game.Tests.Visual.Online
         {
             linkColour = colours.Blue;
 
-            var chatManager = new ChannelManager();
+            var chatManager = new ChannelManager(API);
             BindableList<Channel> availableChannels = (BindableList<Channel>)chatManager.AvailableChannels;
             availableChannels.Add(new Channel { Name = "#english" });
             availableChannels.Add(new Channel { Name = "#japanese" });

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

@@ -59,7 +59,7 @@ namespace osu.Game.Tests.Visual.Online
                 RelativeSizeAxes = Axes.Both,
                 CachedDependencies = new (Type, object)[]
                 {
-                    (typeof(ChannelManager), channelManager = new ChannelManager()),
+                    (typeof(ChannelManager), channelManager = new ChannelManager(API)),
                 },
                 Children = new Drawable[]
                 {
@@ -469,6 +469,8 @@ namespace osu.Game.Tests.Visual.Online
                 chatOverlay.Show();
             });
 
+            AddStep("Select channel 1", () => clickDrawable(getChannelListItem(testChannel1)));
+
             waitForChannel1Visible();
             AddStep("Press document next keys", () => InputManager.Keys(PlatformAction.DocumentNext));
             waitForChannel2Visible();
@@ -570,15 +572,15 @@ namespace osu.Game.Tests.Visual.Online
 
             public SlowLoadingDrawableChannel GetSlowLoadingChannel(Channel channel) => DrawableChannels.OfType<SlowLoadingDrawableChannel>().Single(c => c.Channel == channel);
 
-            protected override ChatOverlayDrawableChannel CreateDrawableChannel(Channel newChannel)
+            protected override DrawableChannel CreateDrawableChannel(Channel newChannel)
             {
                 return SlowLoading
                     ? new SlowLoadingDrawableChannel(newChannel)
-                    : new ChatOverlayDrawableChannel(newChannel);
+                    : new DrawableChannel(newChannel);
             }
         }
 
-        private class SlowLoadingDrawableChannel : ChatOverlayDrawableChannel
+        private class SlowLoadingDrawableChannel : DrawableChannel
         {
             public readonly ManualResetEventSlim LoadEvent = new ManualResetEventSlim();
 

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

@@ -2,6 +2,7 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Linq;
 using NUnit.Framework;
 using osu.Framework.Allocation;
@@ -43,7 +44,7 @@ namespace osu.Game.Tests.Visual.Online
 
             Schedule(() =>
             {
-                Child = testContainer = new TestContainer(new[] { publicChannel, privateMessageChannel })
+                Child = testContainer = new TestContainer(API, new[] { publicChannel, privateMessageChannel })
                 {
                     RelativeSizeAxes = Axes.Both,
                 };
@@ -178,6 +179,36 @@ namespace osu.Game.Tests.Visual.Online
             AddAssert("1 notification fired", () => testContainer.NotificationOverlay.UnreadCount.Value == 1);
         }
 
+        /// <summary>
+        /// Ensures that <see cref="MessageNotifier"/> handles channels which have not been or could not be resolved (i.e. <see cref="Channel.Id"/> = 0).
+        /// </summary>
+        [Test]
+        public void TestSendInUnresolvedChannel()
+        {
+            int i = 1;
+            Channel unresolved = null;
+
+            AddRepeatStep("join unresolved channels", () => testContainer.ChannelManager.JoinChannel(unresolved = new Channel(new APIUser
+            {
+                Id = 100 + i,
+                Username = $"Foreign #{i++}",
+            })), 5);
+
+            AddStep("send message in unresolved channel", () =>
+            {
+                Debug.Assert(unresolved.Id == 0);
+
+                unresolved.AddLocalEcho(new LocalEchoMessage
+                {
+                    Sender = API.LocalUser.Value,
+                    ChannelId = unresolved.Id,
+                    Content = "Some message",
+                });
+            });
+
+            AddAssert("no notifications fired", () => testContainer.NotificationOverlay.UnreadCount.Value == 0);
+        }
+
         private void receiveMessage(APIUser sender, Channel channel, string content) => channel.AddNewMessages(createMessage(sender, channel, content));
 
         private Message createMessage(APIUser sender, Channel channel, string content) => new Message(messageIdCounter++)
@@ -198,7 +229,7 @@ namespace osu.Game.Tests.Visual.Online
         private class TestContainer : Container
         {
             [Cached]
-            public ChannelManager ChannelManager { get; } = new ChannelManager();
+            public ChannelManager ChannelManager { get; }
 
             [Cached(typeof(INotificationOverlay))]
             public NotificationOverlay NotificationOverlay { get; } = new NotificationOverlay
@@ -214,9 +245,10 @@ namespace osu.Game.Tests.Visual.Online
 
             private readonly Channel[] channels;
 
-            public TestContainer(Channel[] channels)
+            public TestContainer(IAPIProvider api, Channel[] channels)
             {
                 this.channels = channels;
+                ChannelManager = new ChannelManager(api);
             }
 
             [BackgroundDependencyLoader]

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

@@ -11,6 +11,7 @@ using NUnit.Framework;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Testing;
 using osu.Framework.Utils;
+using osu.Game.Online.API;
 using osu.Game.Online.API.Requests.Responses;
 using osu.Game.Overlays.Chat;
 using osuTK.Input;
@@ -44,17 +45,22 @@ namespace osu.Game.Tests.Visual.Online
             Id = 5,
         };
 
-        [Cached]
-        private ChannelManager channelManager = new ChannelManager();
+        private ChannelManager channelManager;
 
         private TestStandAloneChatDisplay chatDisplay;
         private int messageIdSequence;
 
         private Channel testChannel;
 
-        public TestSceneStandAloneChatDisplay()
+        protected override IReadOnlyDependencyContainer CreateChildDependencies(IReadOnlyDependencyContainer parent)
         {
-            Add(channelManager);
+            Add(channelManager = new ChannelManager(parent.Get<IAPIProvider>()));
+
+            var dependencies = new DependencyContainer(base.CreateChildDependencies(parent));
+
+            dependencies.Cache(channelManager);
+
+            return dependencies;
         }
 
         [SetUp]
@@ -128,11 +134,11 @@ namespace osu.Game.Tests.Visual.Online
 
             AddAssert("Ensure no adjacent day separators", () =>
             {
-                var indices = chatDisplay.FillFlow.OfType<DrawableChannel.DaySeparator>().Select(ds => chatDisplay.FillFlow.IndexOf(ds));
+                var indices = chatDisplay.FillFlow.OfType<DaySeparator>().Select(ds => chatDisplay.FillFlow.IndexOf(ds));
 
                 foreach (int i in indices)
                 {
-                    if (i < chatDisplay.FillFlow.Count && chatDisplay.FillFlow[i + 1] is DrawableChannel.DaySeparator)
+                    if (i < chatDisplay.FillFlow.Count && chatDisplay.FillFlow[i + 1] is DaySeparator)
                         return false;
                 }
 

osu.Game.Tests/Visual/Playlists/TestScenePlaylistsResultsScreen.cs

@@ -173,6 +173,8 @@ namespace osu.Game.Tests.Visual.Playlists
         {
             AddUntilStep("wait for scores loaded", () =>
                 requestComplete
+                // request handler may need to fire more than once to get scores.
+                && totalCount > 0
                 && resultsScreen.ScorePanelList.GetScorePanels().Count() == totalCount
                 && resultsScreen.ScorePanelList.AllPanelsVisible);
             AddWaitStep("wait for display", 5);

osu.Game.Tests/Visual/Ranking/TestSceneExpandedPanelMiddleContent.cs

@@ -96,6 +96,7 @@ namespace osu.Game.Tests.Visual.Ranking
             beatmap.Metadata.Author = author;
             beatmap.Metadata.Title = "Verrrrrrrrrrrrrrrrrrry looooooooooooooooooooooooong beatmap title";
             beatmap.Metadata.Artist = "Verrrrrrrrrrrrrrrrrrry looooooooooooooooooooooooong beatmap artist";
+            beatmap.DifficultyName = "Verrrrrrrrrrrrrrrrrrry looooooooooooooooooooooooong difficulty name";
 
             return beatmap;
         }

osu.Game.Tests/Visual/Settings/TestSceneSettingsItem.cs

@@ -6,6 +6,7 @@ using NUnit.Framework;
 using osu.Framework.Bindables;
 using osu.Framework.Testing;
 using osu.Framework.Utils;
+using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Graphics.UserInterface;
 using osu.Game.Overlays.Settings;
@@ -83,7 +84,7 @@ namespace osu.Game.Tests.Visual.Settings
             AddStep("clear label", () => textBox.LabelText = default);
             AddAssert("default value button centre aligned to control size", () => Precision.AlmostEquals(restoreDefaultValueButton.Parent.DrawHeight, control.DrawHeight, 1));
 
-            AddStep("set warning text", () => textBox.WarningText = "This is some very important warning text! Hopefully it doesn't break the alignment of the default value indicator...");
+            AddStep("set warning text", () => textBox.SetNoticeText("This is some very important warning text! Hopefully it doesn't break the alignment of the default value indicator...", true));
             AddAssert("default value button centre aligned to control size", () => Precision.AlmostEquals(restoreDefaultValueButton.Parent.DrawHeight, control.DrawHeight, 1));
         }
 
@@ -129,16 +130,18 @@ namespace osu.Game.Tests.Visual.Settings
             SettingsNumberBox numberBox = null;
 
             AddStep("create settings item", () => Child = numberBox = new SettingsNumberBox());
-            AddAssert("warning text not created", () => !numberBox.ChildrenOfType<SettingsNoticeText>().Any());
+            AddAssert("warning text not created", () => !numberBox.ChildrenOfType<LinkFlowContainer>().Any());
 
-            AddStep("set warning text", () => numberBox.WarningText = "this is a warning!");
-            AddAssert("warning text created", () => numberBox.ChildrenOfType<SettingsNoticeText>().Single().Alpha == 1);
+            AddStep("set warning text", () => numberBox.SetNoticeText("this is a warning!", true));
+            AddAssert("warning text created", () => numberBox.ChildrenOfType<LinkFlowContainer>().Single().Alpha == 1);
 
-            AddStep("unset warning text", () => numberBox.WarningText = default);
-            AddAssert("warning text hidden", () => numberBox.ChildrenOfType<SettingsNoticeText>().Single().Alpha == 0);
+            AddStep("unset warning text", () => numberBox.ClearNoticeText());
+            AddAssert("warning text hidden", () => !numberBox.ChildrenOfType<LinkFlowContainer>().Any());
 
-            AddStep("set warning text again", () => numberBox.WarningText = "another warning!");
-            AddAssert("warning text shown again", () => numberBox.ChildrenOfType<SettingsNoticeText>().Single().Alpha == 1);
+            AddStep("set warning text again", () => numberBox.SetNoticeText("another warning!", true));
+            AddAssert("warning text shown again", () => numberBox.ChildrenOfType<LinkFlowContainer>().Single().Alpha == 1);
+
+            AddStep("set non warning text", () => numberBox.SetNoticeText("you did good!"));
         }
     }
 }

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

@@ -5,12 +5,11 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using NUnit.Framework;
+using osu.Framework.Allocation;
+using osu.Framework.Extensions.IEnumerableExtensions;
 using osu.Framework.Testing;
 using osu.Game.Beatmaps;
 using osu.Game.Extensions;
-using osu.Game.Online.API;
-using osu.Game.Online.API.Requests;
-using osu.Game.Online.API.Requests.Responses;
 using osu.Game.Rulesets;
 using osu.Game.Rulesets.Catch;
 using osu.Game.Rulesets.Mania;
@@ -23,38 +22,28 @@ namespace osu.Game.Tests.Visual.SongSelect
 {
     public class TestSceneBeatmapRecommendations : OsuGameTestScene
     {
+        [Resolved]
+        private IRulesetStore rulesetStore { get; set; }
+
         [SetUpSteps]
         public override void SetUpSteps()
         {
-            AddStep("register request handling", () =>
-            {
-                ((DummyAPIAccess)API).HandleRequest = req =>
-                {
-                    switch (req)
-                    {
-                        case GetUserRequest userRequest:
-                            userRequest.TriggerSuccess(getUser(userRequest.Ruleset.OnlineID));
-                            return true;
-                    }
+            base.SetUpSteps();
 
-                    return false;
+            AddStep("populate ruleset statistics", () =>
+            {
+                Dictionary<string, UserStatistics> rulesetStatistics = new Dictionary<string, UserStatistics>();
+
+                rulesetStore.AvailableRulesets.Where(ruleset => ruleset.IsLegacyRuleset()).ForEach(rulesetInfo =>
+                {
+                    rulesetStatistics[rulesetInfo.ShortName] = new UserStatistics
+                    {
+                        PP = getNecessaryPP(rulesetInfo.OnlineID)
                     };
                 });
 
-            base.SetUpSteps();
-
-            APIUser getUser(int? rulesetID)
-            {
-                return new APIUser
-                {
-                    Username = @"Dummy",
-                    Id = 1001,
-                    Statistics = new UserStatistics
-                    {
-                        PP = getNecessaryPP(rulesetID)
-                    }
-                };
-            }
+                API.LocalUser.Value.RulesetsStatistics = rulesetStatistics;
+            });
 
             decimal getNecessaryPP(int? rulesetID)
             {

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

@@ -18,6 +18,7 @@ using osu.Game.Database;
 using osu.Game.Extensions;
 using osu.Game.Graphics.UserInterface;
 using osu.Game.Online.API.Requests.Responses;
+using osu.Game.Online.Chat;
 using osu.Game.Overlays;
 using osu.Game.Overlays.Mods;
 using osu.Game.Rulesets;
@@ -80,6 +81,37 @@ namespace osu.Game.Tests.Visual.SongSelect
             AddStep("delete all beatmaps", () => manager?.Delete());
         }
 
+        [Test]
+        public void TestPlaceholderBeatmapPresence()
+        {
+            createSongSelect();
+
+            AddUntilStep("wait for placeholder visible", () => getPlaceholder()?.State.Value == Visibility.Visible);
+
+            addRulesetImportStep(0);
+            AddUntilStep("wait for placeholder hidden", () => getPlaceholder()?.State.Value == Visibility.Hidden);
+
+            AddStep("delete all beatmaps", () => manager?.Delete());
+            AddUntilStep("wait for placeholder visible", () => getPlaceholder()?.State.Value == Visibility.Visible);
+        }
+
+        [Test]
+        public void TestPlaceholderConvertSetting()
+        {
+            changeRuleset(2);
+            addRulesetImportStep(0);
+            AddStep("change convert setting", () => config.SetValue(OsuSetting.ShowConvertedBeatmaps, false));
+
+            createSongSelect();
+
+            AddUntilStep("wait for placeholder visible", () => getPlaceholder()?.State.Value == Visibility.Visible);
+
+            AddStep("click link in placeholder", () => getPlaceholder().ChildrenOfType<DrawableLinkCompiler>().First().TriggerClick());
+
+            AddUntilStep("convert setting changed", () => config.Get<bool>(OsuSetting.ShowConvertedBeatmaps));
+            AddUntilStep("wait for placeholder visible", () => getPlaceholder()?.State.Value == Visibility.Hidden);
+        }
+
         [Test]
         public void TestSingleFilterOnEnter()
         {
@@ -941,6 +973,8 @@ namespace osu.Game.Tests.Visual.SongSelect
 
         private int getBeatmapIndex(BeatmapSetInfo set, BeatmapInfo info) => set.Beatmaps.IndexOf(info);
 
+        private NoResultsPlaceholder getPlaceholder() => songSelect.ChildrenOfType<NoResultsPlaceholder>().FirstOrDefault();
+
         private int getCurrentBeatmapIndex() => getBeatmapIndex(songSelect.Carousel.SelectedBeatmapSet, songSelect.Carousel.SelectedBeatmapInfo);
 
         private int getDifficultyIconIndex(DrawableCarouselBeatmapSet set, FilterableDifficultyIcon icon)

osu.Game.Tournament/Components/TournamentMatchChatDisplay.cs

@@ -5,6 +5,7 @@ using System.Linq;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;
 using osu.Framework.Graphics;
+using osu.Game.Online.API;
 using osu.Game.Online.Chat;
 using osu.Game.Overlays.Chat;
 using osu.Game.Tournament.IPC;
@@ -29,7 +30,7 @@ namespace osu.Game.Tournament.Components
         }
 
         [BackgroundDependencyLoader(true)]
-        private void load(MatchIPCInfo ipc)
+        private void load(MatchIPCInfo ipc, IAPIProvider api)
         {
             if (ipc != null)
             {
@@ -45,7 +46,7 @@ namespace osu.Game.Tournament.Components
 
                     if (manager == null)
                     {
-                        AddInternal(manager = new ChannelManager { HighPollRate = { Value = true } });
+                        AddInternal(manager = new ChannelManager(api) { HighPollRate = { Value = true } });
                         Channel.BindTo(manager.CurrentChannel);
                     }
 

osu.Game/Beatmaps/BeatmapManager.cs

@@ -319,6 +319,15 @@ namespace osu.Game.Beatmaps
             });
         }
 
+        public void DeleteAllVideos()
+        {
+            realm.Write(r =>
+            {
+                var items = r.All<BeatmapSetInfo>().Where(s => !s.DeletePending && !s.Protected);
+                beatmapModelManager.DeleteVideos(items.ToList());
+            });
+        }
+
         public void UndeleteAll()
         {
             realm.Run(r => beatmapModelManager.Undelete(r.All<BeatmapSetInfo>().Where(s => s.DeletePending).ToList()));

osu.Game/Beatmaps/BeatmapModelManager.cs

@@ -16,6 +16,7 @@ using osu.Game.Database;
 using osu.Game.Extensions;
 using osu.Game.Skinning;
 using osu.Game.Stores;
+using osu.Game.Overlays.Notifications;
 
 #nullable enable
 
@@ -33,6 +34,8 @@ namespace osu.Game.Beatmaps
 
         protected override string[] HashableFileTypes => new[] { ".osu" };
 
+        public static readonly string[] VIDEO_EXTENSIONS = { ".mp4", ".mov", ".avi", ".flv" };
+
         public BeatmapModelManager(RealmAccess realm, Storage storage, BeatmapOnlineLookupQueue? onlineLookupQueue = null)
             : base(realm, storage, onlineLookupQueue)
         {
@@ -114,5 +117,50 @@ namespace osu.Game.Beatmaps
                 item.CopyChangesToRealm(existing);
             });
         }
+
+        /// <summary>
+        /// Delete videos from a list of beatmaps.
+        /// This will post notifications tracking progress.
+        /// </summary>
+        public void DeleteVideos(List<BeatmapSetInfo> items, bool silent = false)
+        {
+            if (items.Count == 0) return;
+
+            var notification = new ProgressNotification
+            {
+                Progress = 0,
+                Text = $"Preparing to delete all {HumanisedModelName} videos...",
+                CompletionText = "No videos found to delete!",
+                State = ProgressNotificationState.Active,
+            };
+
+            if (!silent)
+                PostNotification?.Invoke(notification);
+
+            int i = 0;
+            int deleted = 0;
+
+            foreach (var b in items)
+            {
+                if (notification.State == ProgressNotificationState.Cancelled)
+                    // user requested abort
+                    return;
+
+                var video = b.Files.FirstOrDefault(f => VIDEO_EXTENSIONS.Any(ex => f.Filename.EndsWith(ex, StringComparison.Ordinal)));
+
+                if (video != null)
+                {
+                    DeleteFile(b, video);
+                    deleted++;
+                    notification.CompletionText = $"Deleted {deleted} {HumanisedModelName} video(s)!";
+                }
+
+                notification.Text = $"Deleting videos from {HumanisedModelName}s ({deleted} deleted)";
+
+                notification.Progress = (float)++i / items.Count;
+            }
+
+            notification.State = ProgressNotificationState.Completed;
+        }
     }
 }

osu.Game/Beatmaps/DifficultyRecommender.cs

@@ -7,11 +7,8 @@ using System.Linq;
 using JetBrains.Annotations;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;
-using osu.Framework.Extensions.IEnumerableExtensions;
 using osu.Framework.Graphics;
-using osu.Game.Extensions;
 using osu.Game.Online.API;
-using osu.Game.Online.API.Requests;
 using osu.Game.Rulesets;
 
 namespace osu.Game.Beatmaps
@@ -25,26 +22,15 @@ namespace osu.Game.Beatmaps
         [Resolved]
         private IAPIProvider api { get; set; }
 
-        [Resolved]
-        private IRulesetStore rulesets { get; set; }
-
         [Resolved]
         private Bindable<RulesetInfo> ruleset { get; set; }
 
-        /// <summary>
-        /// The user for which the last requests were run.
-        /// </summary>
-        private int? requestedUserId;
-
-        private readonly Dictionary<IRulesetInfo, double> recommendedDifficultyMapping = new Dictionary<IRulesetInfo, double>();
-
-        private readonly IBindable<APIState> apiState = new Bindable<APIState>();
+        private readonly Dictionary<string, double> recommendedDifficultyMapping = new Dictionary<string, double>();
 
         [BackgroundDependencyLoader]
         private void load()
         {
-            apiState.BindTo(api.State);
-            apiState.BindValueChanged(onlineStateChanged, true);
+            api.LocalUser.BindValueChanged(_ => populateValues(), true);
         }
 
         /// <summary>
@@ -58,12 +44,12 @@ namespace osu.Game.Beatmaps
         [CanBeNull]
         public BeatmapInfo GetRecommendedBeatmap(IEnumerable<BeatmapInfo> beatmaps)
         {
-            foreach (var r in orderedRulesets)
+            foreach (string r in orderedRulesets)
             {
                 if (!recommendedDifficultyMapping.TryGetValue(r, out double recommendation))
                     continue;
 
-                BeatmapInfo beatmapInfo = beatmaps.Where(b => b.Ruleset.Equals(r)).OrderBy(b =>
+                BeatmapInfo beatmapInfo = beatmaps.Where(b => b.Ruleset.ShortName.Equals(r)).OrderBy(b =>
                 {
                     double difference = b.StarRating - recommendation;
                     return difference >= 0 ? difference * 2 : difference * -1; // prefer easier over harder
@@ -76,55 +62,35 @@ namespace osu.Game.Beatmaps
             return null;
         }
 
-        private void fetchRecommendedValues()
+        private void populateValues()
         {
-            if (recommendedDifficultyMapping.Count > 0 && api.LocalUser.Value.Id == requestedUserId)
+            if (api.LocalUser.Value.RulesetsStatistics == null)
                 return;
 
-            requestedUserId = api.LocalUser.Value.Id;
-
-            // only query API for built-in rulesets
-            rulesets.AvailableRulesets.Where(ruleset => ruleset.IsLegacyRuleset()).ForEach(rulesetInfo =>
-            {
-                var req = new GetUserRequest(api.LocalUser.Value.Id, rulesetInfo);
-
-                req.Success += result =>
+            foreach (var kvp in api.LocalUser.Value.RulesetsStatistics)
             {
                 // algorithm taken from https://github.com/ppy/osu-web/blob/e6e2825516449e3d0f3f5e1852c6bdd3428c3437/app/Models/User.php#L1505
-                    recommendedDifficultyMapping[rulesetInfo] = Math.Pow((double)(result.Statistics.PP ?? 0), 0.4) * 0.195;
-                };
-
-                api.Queue(req);
-            });
+                recommendedDifficultyMapping[kvp.Key] = Math.Pow((double)(kvp.Value.PP ?? 0), 0.4) * 0.195;
+            }
         }
 
         /// <returns>
         /// Rulesets ordered descending by their respective recommended difficulties.
         /// The currently selected ruleset will always be first.
         /// </returns>
-        private IEnumerable<IRulesetInfo> orderedRulesets
+        private IEnumerable<string> orderedRulesets
         {
             get
             {
                 if (LoadState < LoadState.Ready || ruleset.Value == null)
-                    return Enumerable.Empty<RulesetInfo>();
+                    return Enumerable.Empty<string>();
 
                 return recommendedDifficultyMapping
                        .OrderByDescending(pair => pair.Value)
                        .Select(pair => pair.Key)
-                       .Where(r => !r.Equals(ruleset.Value))
-                       .Prepend(ruleset.Value);
+                       .Where(r => !r.Equals(ruleset.Value.ShortName))
+                       .Prepend(ruleset.Value.ShortName);
             }
         }
-
-        private void onlineStateChanged(ValueChangedEvent<APIState> state) => Schedule(() =>
-        {
-            switch (state.NewValue)
-            {
-                case APIState.Online:
-                    fetchRecommendedValues();
-                    break;
-            }
-        });
     }
 }

osu.Game/Beatmaps/Drawables/BundledBeatmapDownloader.cs

@@ -85,6 +85,8 @@ namespace osu.Game.Beatmaps.Drawables
                 downloadTrackers.Add(beatmapDownloadTracker);
                 AddInternal(beatmapDownloadTracker);
 
+                // Note that this is downloading the beatmaps even if they are already downloaded.
+                // We could rely more on `BeatmapDownloadTracker`'s exposed state to avoid this.
                 beatmapDownloader.Download(beatmapSet);
             }
         }

osu.Game/Beatmaps/Drawables/Cards/BeatmapCard.cs

@@ -35,7 +35,7 @@ namespace osu.Game.Beatmaps.Drawables.Cards
         protected readonly BeatmapDownloadTracker DownloadTracker;
 
         protected BeatmapCard(APIBeatmapSet beatmapSet, bool allowExpansion = true)
-            : base(HoverSampleSet.Submit)
+            : base(HoverSampleSet.Button)
         {
             Expanded = new BindableBool { Disabled = !allowExpansion };
 

osu.Game/Beatmaps/Drawables/Cards/BeatmapCardExtra.cs

@@ -6,7 +6,6 @@
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
-using osu.Framework.Graphics.Sprites;
 using osu.Framework.Localisation;
 using osu.Game.Beatmaps.Drawables.Cards.Statistics;
 using osu.Game.Graphics;
@@ -245,10 +244,10 @@ namespace osu.Game.Beatmaps.Drawables.Cards
             });
 
             if (BeatmapSet.HasVideo)
-                leftIconArea.Add(new IconPill(FontAwesome.Solid.Film) { IconSize = new Vector2(20) });
+                leftIconArea.Add(new VideoIconPill { IconSize = new Vector2(20) });
 
             if (BeatmapSet.HasStoryboard)
-                leftIconArea.Add(new IconPill(FontAwesome.Solid.Image) { IconSize = new Vector2(20) });
+                leftIconArea.Add(new StoryboardIconPill { IconSize = new Vector2(20) });
 
             if (BeatmapSet.FeaturedInSpotlight)
             {

osu.Game/Beatmaps/Drawables/Cards/BeatmapCardNormal.cs

@@ -7,7 +7,6 @@ using System.Collections.Generic;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
-using osu.Framework.Graphics.Sprites;
 using osu.Framework.Localisation;
 using osu.Game.Beatmaps.Drawables.Cards.Statistics;
 using osu.Game.Graphics;
@@ -226,10 +225,10 @@ namespace osu.Game.Beatmaps.Drawables.Cards
             });
 
             if (BeatmapSet.HasVideo)
-                leftIconArea.Add(new IconPill(FontAwesome.Solid.Film) { IconSize = new Vector2(20) });
+                leftIconArea.Add(new VideoIconPill { IconSize = new Vector2(20) });
 
             if (BeatmapSet.HasStoryboard)
-                leftIconArea.Add(new IconPill(FontAwesome.Solid.Image) { IconSize = new Vector2(20) });
+                leftIconArea.Add(new StoryboardIconPill { IconSize = new Vector2(20) });
 
             if (BeatmapSet.FeaturedInSpotlight)
             {

osu.Game/Beatmaps/Drawables/Cards/IconPill.cs

@@ -3,14 +3,16 @@
 
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Cursor;
 using osu.Framework.Graphics.Shapes;
 using osu.Framework.Graphics.Sprites;
+using osu.Framework.Localisation;
 using osuTK;
 using osuTK.Graphics;
 
 namespace osu.Game.Beatmaps.Drawables.Cards
 {
-    public class IconPill : CircularContainer
+    public abstract class IconPill : CircularContainer, IHasTooltip
     {
         public Vector2 IconSize
         {
@@ -20,7 +22,7 @@ namespace osu.Game.Beatmaps.Drawables.Cards
 
         private readonly Container iconContainer;
 
-        public IconPill(IconUsage icon)
+        protected IconPill(IconUsage icon)
         {
             AutoSizeAxes = Axes.Both;
             Masking = true;
@@ -47,5 +49,7 @@ namespace osu.Game.Beatmaps.Drawables.Cards
                 },
             };
         }
+
+        public abstract LocalisableString TooltipText { get; }
     }
 }

osu.Game/Beatmaps/Drawables/Cards/StoryboardIconPill.cs

@@ -0,0 +1,19 @@
+// 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.Graphics.Sprites;
+using osu.Framework.Localisation;
+using osu.Game.Resources.Localisation.Web;
+
+namespace osu.Game.Beatmaps.Drawables.Cards
+{
+    public class StoryboardIconPill : IconPill
+    {
+        public StoryboardIconPill()
+            : base(FontAwesome.Solid.Image)
+        {
+        }
+
+        public override LocalisableString TooltipText => BeatmapsetsStrings.ShowInfoStoryboard;
+    }
+}

osu.Game/Beatmaps/Drawables/Cards/VideoIconPill.cs

@@ -0,0 +1,19 @@
+// 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.Graphics.Sprites;
+using osu.Framework.Localisation;
+using osu.Game.Resources.Localisation.Web;
+
+namespace osu.Game.Beatmaps.Drawables.Cards
+{
+    public class VideoIconPill : IconPill
+    {
+        public VideoIconPill()
+            : base(FontAwesome.Solid.Film)
+        {
+        }
+
+        public override LocalisableString TooltipText => BeatmapsetsStrings.ShowInfoVideo;
+    }
+}

osu.Game/Database/OnlineLookupCache.cs

@@ -91,7 +91,7 @@ namespace osu.Game.Database
             }
         }
 
-        private void performLookup()
+        private async Task performLookup()
         {
             // contains at most 50 unique IDs from tasks, which is used to perform the lookup.
             var nextTaskBatch = new Dictionary<TLookup, List<TaskCompletionSource<TValue>>>();
@@ -127,7 +127,7 @@ namespace osu.Game.Database
 
             // rather than queueing, we maintain our own single-threaded request stream.
             // todo: we probably want retry logic here.
-            api.Perform(request);
+            await api.PerformAsync(request).ConfigureAwait(false);
 
             finishPendingTask();
 

osu.Game/Database/RealmAccess.cs

@@ -392,7 +392,7 @@ namespace osu.Game.Database
         {
             total_writes_async.Value++;
             using (var realm = getRealmInstance())
-                await realm.WriteAsync(action);
+                await realm.WriteAsync(() => action(realm));
         }
 
         /// <summary>

osu.Game/Graphics/Containers/ScalingContainer.cs

@@ -21,7 +21,7 @@ namespace osu.Game.Graphics.Containers
     /// </summary>
     public class ScalingContainer : Container
     {
-        private const float duration = 500;
+        internal const float TRANSITION_DURATION = 500;
 
         private Bindable<float> sizeX;
         private Bindable<float> sizeY;
@@ -99,7 +99,7 @@ namespace osu.Game.Graphics.Containers
                 if (applyUIScale)
                 {
                     uiScale = osuConfig.GetBindable<float>(OsuSetting.UIScale);
-                    uiScale.BindValueChanged(args => this.TransformTo(nameof(CurrentScale), args.NewValue, duration, Easing.OutQuart), true);
+                    uiScale.BindValueChanged(args => this.TransformTo(nameof(CurrentScale), args.NewValue, TRANSITION_DURATION, Easing.OutQuart), true);
                 }
             }
 
@@ -163,10 +163,10 @@ namespace osu.Game.Graphics.Containers
                         backgroundStack.Push(new ScalingBackgroundScreen());
                     }
 
-                    backgroundStack.FadeIn(duration);
+                    backgroundStack.FadeIn(TRANSITION_DURATION);
                 }
                 else
-                    backgroundStack?.FadeOut(duration);
+                    backgroundStack?.FadeOut(TRANSITION_DURATION);
             }
 
             RectangleF targetRect = new RectangleF(Vector2.Zero, Vector2.One);
@@ -195,13 +195,13 @@ namespace osu.Game.Graphics.Containers
             if (requiresMasking)
                 sizableContainer.Masking = true;
 
-            sizableContainer.MoveTo(targetRect.Location, duration, Easing.OutQuart);
-            sizableContainer.ResizeTo(targetRect.Size, duration, Easing.OutQuart);
+            sizableContainer.MoveTo(targetRect.Location, TRANSITION_DURATION, Easing.OutQuart);
+            sizableContainer.ResizeTo(targetRect.Size, TRANSITION_DURATION, Easing.OutQuart);
 
             // Of note, this will not work great in the case of nested ScalingContainers where multiple are applying corner radius.
             // Masking and corner radius should likely only be applied at one point in the full game stack to fix this.
             // An example of how this can occur is when the skin editor is visible and the game screen scaling is set to "Everything".
-            sizableContainer.TransformTo(nameof(CornerRadius), requiresMasking ? corner_radius : 0, duration, requiresMasking ? Easing.OutQuart : Easing.None)
+            sizableContainer.TransformTo(nameof(CornerRadius), requiresMasking ? corner_radius : 0, TRANSITION_DURATION, requiresMasking ? Easing.OutQuart : Easing.None)
                             .OnComplete(_ => { sizableContainer.Masking = requiresMasking; });
         }
 

osu.Game/Graphics/UserInterface/BackButton.cs

@@ -21,7 +21,7 @@ namespace osu.Game.Graphics.UserInterface
         {
             Size = TwoLayerButton.SIZE_EXTENDED;
 
-            Child = button = new TwoLayerButton(HoverSampleSet.Submit)
+            Child = button = new TwoLayerButton
             {
                 Anchor = Anchor.TopLeft,
                 Origin = Anchor.TopLeft,

osu.Game/Graphics/UserInterface/DialogButton.cs

@@ -56,8 +56,8 @@ namespace osu.Game.Graphics.UserInterface
         private readonly SpriteText spriteText;
         private Vector2 hoverSpacing => new Vector2(3f, 0f);
 
-        public DialogButton()
-            : base(HoverSampleSet.Submit)
+        public DialogButton(HoverSampleSet sampleSet = HoverSampleSet.Button)
+            : base(sampleSet)
         {
             RelativeSizeAxes = Axes.X;
 

osu.Game/Graphics/UserInterface/ExternalLinkButton.cs

@@ -36,7 +36,7 @@ namespace osu.Game.Graphics.UserInterface
                     Icon = FontAwesome.Solid.ExternalLinkAlt,
                     RelativeSizeAxes = Axes.Both
                 },
-                new HoverClickSounds(HoverSampleSet.Submit)
+                new HoverClickSounds()
             };
         }
 

osu.Game/Graphics/UserInterface/HoverClickSounds.cs

@@ -7,6 +7,7 @@ using osu.Framework.Audio;
 using osu.Framework.Audio.Sample;
 using osu.Framework.Extensions;
 using osu.Framework.Input.Events;
+using osu.Framework.Utils;
 using osuTK.Input;
 
 namespace osu.Game.Graphics.UserInterface
@@ -37,7 +38,10 @@ namespace osu.Game.Graphics.UserInterface
         protected override bool OnClick(ClickEvent e)
         {
             if (buttons.Contains(e.Button) && Contains(e.ScreenSpaceMousePosition))
-                sampleClick?.Play();
+            {
+                sampleClick.Frequency.Value = 0.99 + RNG.NextDouble(0.02);
+                sampleClick.Play();
+            }
 
             return base.OnClick(e);
         }

osu.Game/Graphics/UserInterface/HoverSampleSet.cs

@@ -10,9 +10,6 @@ namespace osu.Game.Graphics.UserInterface
         [Description("default")]
         Default,
 
-        [Description("submit")]
-        Submit,
-
         [Description("button")]
         Button,
 

osu.Game/Graphics/UserInterface/ShearedToggleButton.cs

@@ -13,6 +13,7 @@ namespace osu.Game.Graphics.UserInterface
 {
     public class ShearedToggleButton : ShearedButton
     {
+        private Sample? sampleClick;
         private Sample? sampleOff;
         private Sample? sampleOn;
 
@@ -39,8 +40,9 @@ namespace osu.Game.Graphics.UserInterface
         [BackgroundDependencyLoader]
         private void load(AudioManager audio)
         {
-            sampleOn = audio.Samples.Get(@"UI/check-on");
-            sampleOff = audio.Samples.Get(@"UI/check-off");
+            sampleClick = audio.Samples.Get(@"UI/default-select");
+            sampleOn = audio.Samples.Get(@"UI/dropdown-open");
+            sampleOff = audio.Samples.Get(@"UI/dropdown-close");
         }
 
         protected override HoverSounds CreateHoverSounds(HoverSampleSet sampleSet) => new HoverSounds(sampleSet);
@@ -67,6 +69,8 @@ namespace osu.Game.Graphics.UserInterface
 
         private void playSample()
         {
+            sampleClick?.Play();
+
             if (Active.Value)
                 sampleOn?.Play();
             else

osu.Game/Graphics/UserInterfaceV2/OsuFileSelector.cs

@@ -2,11 +2,13 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System.IO;
+using System.Linq;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Sprites;
 using osu.Framework.Graphics.UserInterface;
+using osu.Game.Beatmaps;
 using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Graphics.UserInterface;
@@ -65,6 +67,9 @@ namespace osu.Game.Graphics.UserInterfaceV2
             {
                 get
                 {
+                    if (BeatmapModelManager.VIDEO_EXTENSIONS.Contains(File.Extension))
+                        return FontAwesome.Regular.FileVideo;
+
                     switch (File.Extension)
                     {
                         case @".ogg":
@@ -77,12 +82,6 @@ namespace osu.Game.Graphics.UserInterfaceV2
                         case @".png":
                             return FontAwesome.Regular.FileImage;
 
-                        case @".mp4":
-                        case @".avi":
-                        case @".mov":
-                        case @".flv":
-                            return FontAwesome.Regular.FileVideo;
-
                         default:
                             return FontAwesome.Regular.File;
                     }

osu.Game/IO/Archives/ZipArchiveReader.cs

@@ -1,11 +1,15 @@
 // 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.Buffers;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using Microsoft.Toolkit.HighPerformance;
+using osu.Framework.Extensions;
 using osu.Framework.IO.Stores;
 using SharpCompress.Archives.Zip;
+using SixLabors.ImageSharp.Memory;
 
 namespace osu.Game.IO.Archives
 {
@@ -27,15 +31,12 @@ namespace osu.Game.IO.Archives
             if (entry == null)
                 throw new FileNotFoundException();
 
-            // allow seeking
-            MemoryStream copy = new MemoryStream();
+            var owner = MemoryAllocator.Default.Allocate<byte>((int)entry.Size);
 
             using (Stream s = entry.OpenEntryStream())
-                s.CopyTo(copy);
+                s.ReadToFill(owner.Memory.Span);
 
-            copy.Position = 0;
-
-            return copy;
+            return new MemoryOwnerMemoryStream(owner);
         }
 
         public override void Dispose()
@@ -45,5 +46,48 @@ namespace osu.Game.IO.Archives
         }
 
         public override IEnumerable<string> Filenames => archive.Entries.Select(e => e.Key).ExcludeSystemFileNames();
+
+        private class MemoryOwnerMemoryStream : Stream
+        {
+            private readonly IMemoryOwner<byte> owner;
+            private readonly Stream stream;
+
+            public MemoryOwnerMemoryStream(IMemoryOwner<byte> owner)
+            {
+                this.owner = owner;
+
+                stream = owner.Memory.AsStream();
+            }
+
+            protected override void Dispose(bool disposing)
+            {
+                owner?.Dispose();
+                base.Dispose(disposing);
+            }
+
+            public override void Flush() => stream.Flush();
+
+            public override int Read(byte[] buffer, int offset, int count) => stream.Read(buffer, offset, count);
+
+            public override long Seek(long offset, SeekOrigin origin) => stream.Seek(offset, origin);
+
+            public override void SetLength(long value) => stream.SetLength(value);
+
+            public override void Write(byte[] buffer, int offset, int count) => stream.Write(buffer, offset, count);
+
+            public override bool CanRead => stream.CanRead;
+
+            public override bool CanSeek => stream.CanSeek;
+
+            public override bool CanWrite => stream.CanWrite;
+
+            public override long Length => stream.Length;
+
+            public override long Position
+            {
+                get => stream.Position;
+                set => stream.Position = value;
+            }
+        }
     }
 }

osu.Game/Input/Bindings/GlobalActionContainer.cs

@@ -80,6 +80,7 @@ namespace osu.Game.Input.Bindings
             new KeyBinding(new[] { InputKey.K }, GlobalAction.EditorNudgeRight),
             new KeyBinding(new[] { InputKey.G }, GlobalAction.EditorCycleGridDisplayMode),
             new KeyBinding(new[] { InputKey.F5 }, GlobalAction.EditorTestGameplay),
+            new KeyBinding(new[] { InputKey.T }, GlobalAction.EditorTapForBPM),
             new KeyBinding(new[] { InputKey.Control, InputKey.H }, GlobalAction.EditorFlipHorizontally),
             new KeyBinding(new[] { InputKey.Control, InputKey.J }, GlobalAction.EditorFlipVertically),
             new KeyBinding(new[] { InputKey.Control, InputKey.Alt, InputKey.MouseWheelDown }, GlobalAction.EditorDecreaseDistanceSpacing),
@@ -322,5 +323,8 @@ namespace osu.Game.Input.Bindings
 
         [LocalisableDescription(typeof(GlobalActionKeyBindingStrings), nameof(GlobalActionKeyBindingStrings.DeselectAllMods))]
         DeselectAllMods,
+
+        [LocalisableDescription(typeof(GlobalActionKeyBindingStrings), nameof(GlobalActionKeyBindingStrings.EditorTapForBPM))]
+        EditorTapForBPM,
     }
 }

osu.Game/Localisation/AudioSettingsStrings.cs

@@ -30,12 +30,12 @@ namespace osu.Game.Localisation
         public static LocalisableString OutputDevice => new TranslatableString(getKey(@"output_device"), @"Output device");
 
         /// <summary>
-        /// "Master"
+        /// "Hitsound stereo separation"
         /// </summary>
         public static LocalisableString PositionalLevel => new TranslatableString(getKey(@"positional_hitsound_audio_level"), @"Hitsound stereo separation");
 
         /// <summary>
-        /// "Level"
+        /// "Master"
         /// </summary>
         public static LocalisableString MasterVolume => new TranslatableString(getKey(@"master_volume"), @"Master");
 
@@ -69,6 +69,6 @@ namespace osu.Game.Localisation
         /// </summary>
         public static LocalisableString OffsetWizard => new TranslatableString(getKey(@"offset_wizard"), @"Offset wizard");
 
-        private static string getKey(string key) => $"{prefix}:{key}";
+        private static string getKey(string key) => $@"{prefix}:{key}";
     }
 }

osu.Game/Localisation/GlobalActionKeyBindingStrings.cs

@@ -174,6 +174,11 @@ namespace osu.Game.Localisation
         /// </summary>
         public static LocalisableString EditorTimingMode => new TranslatableString(getKey(@"editor_timing_mode"), @"Timing mode");
 
+        /// <summary>
+        /// "Tap for BPM"
+        /// </summary>
+        public static LocalisableString EditorTapForBPM => new TranslatableString(getKey(@"editor_tap_for_bpm"), @"Tap for BPM");
+
         /// <summary>
         /// "Cycle grid display mode"
         /// </summary>
@@ -205,7 +210,7 @@ namespace osu.Game.Localisation
         public static LocalisableString ToggleInGameInterface => new TranslatableString(getKey(@"toggle_in_game_interface"), @"Toggle in-game interface");
 
         /// <summary>
-        /// "Toggle Mod Select"
+        /// "Toggle mod select"
         /// </summary>
         public static LocalisableString ToggleModSelection => new TranslatableString(getKey(@"toggle_mod_selection"), @"Toggle mod select");
 
@@ -294,6 +299,6 @@ namespace osu.Game.Localisation
         /// </summary>
         public static LocalisableString ToggleChatFocus => new TranslatableString(getKey(@"toggle_chat_focus"), @"Toggle chat focus");
 
-        private static string getKey(string key) => $"{prefix}:{key}";
+        private static string getKey(string key) => $@"{prefix}:{key}";
     }
 }

osu.Game/Localisation/JoystickSettingsStrings.cs

@@ -15,7 +15,7 @@ namespace osu.Game.Localisation
         public static LocalisableString JoystickGamepad => new TranslatableString(getKey(@"joystick_gamepad"), @"Joystick / Gamepad");
 
         /// <summary>
-        /// "Deadzone Threshold"
+        /// "Deadzone"
         /// </summary>
         public static LocalisableString DeadzoneThreshold => new TranslatableString(getKey(@"deadzone_threshold"), @"Deadzone");
 

osu.Game/Localisation/LayoutSettingsStrings.cs

@@ -0,0 +1,34 @@
+// 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.Localisation;
+
+namespace osu.Game.Localisation
+{
+    public static class LayoutSettingsStrings
+    {
+        private const string prefix = @"osu.Game.Resources.Localisation.LayoutSettings";
+
+        /// <summary>
+        /// "Checking for fullscreen capabilities..."
+        /// </summary>
+        public static LocalisableString CheckingForFullscreenCapabilities => new TranslatableString(getKey(@"checking_for_fullscreen_capabilities"), @"Checking for fullscreen capabilities...");
+
+        /// <summary>
+        /// "osu! is running exclusive fullscreen, guaranteeing low latency!"
+        /// </summary>
+        public static LocalisableString OsuIsRunningExclusiveFullscreen => new TranslatableString(getKey(@"osu_is_running_exclusive_fullscreen"), @"osu! is running exclusive fullscreen, guaranteeing low latency!");
+
+        /// <summary>
+        /// "Unable to run exclusive fullscreen. You&#39;ll still experience some input latency."
+        /// </summary>
+        public static LocalisableString UnableToRunExclusiveFullscreen => new TranslatableString(getKey(@"unable_to_run_exclusive_fullscreen"), @"Unable to run exclusive fullscreen. You'll still experience some input latency.");
+
+        /// <summary>
+        /// "Using fullscreen on macOS makes interacting with the menu bar and spaces no longer work, and may lead to freezes if a system dialog is presented. Using borderless is recommended."
+        /// </summary>
+        public static LocalisableString FullscreenMacOSNote => new TranslatableString(getKey(@"fullscreen_macos_note"), @"Using fullscreen on macOS makes interacting with the menu bar and spaces no longer work, and may lead to freezes if a system dialog is presented. Using borderless is recommended.");
+
+        private static string getKey(string key) => $@"{prefix}:{key}";
+    }
+}

osu.Game/Localisation/MaintenanceSettingsStrings.cs

@@ -29,6 +29,11 @@ namespace osu.Game.Localisation
         /// </summary>
         public static LocalisableString DeleteAllBeatmaps => new TranslatableString(getKey(@"delete_all_beatmaps"), @"Delete ALL beatmaps");
 
+        /// <summary>
+        /// "Delete ALL beatmap videos"
+        /// </summary>
+        public static LocalisableString DeleteAllBeatmapVideos => new TranslatableString(getKey(@"delete_all_beatmap_videos"), @"Delete ALL beatmap videos");
+
         /// <summary>
         /// "Import scores from stable"
         /// </summary>

osu.Game/Localisation/SkinSettingsStrings.cs

@@ -54,6 +54,11 @@ namespace osu.Game.Localisation
         /// </summary>
         public static LocalisableString ExportSkinButton => new TranslatableString(getKey(@"export_skin_button"), @"Export selected skin");
 
+        /// <summary>
+        /// "Delete selected skin"
+        /// </summary>
+        public static LocalisableString DeleteSkinButton => new TranslatableString(getKey(@"delete_skin_button"), @"Delete selected skin");
+
         private static string getKey(string key) => $"{prefix}:{key}";
     }
 }

osu.Game/Online/API/APIRequest.cs

@@ -121,8 +121,16 @@ namespace osu.Game.Online.API
 
             if (isFailing) return;
 
+            try
+            {
                 Logger.Log($@"Performing request {this}", LoggingTarget.Network);
                 WebRequest.Perform();
+            }
+            catch (OperationCanceledException)
+            {
+                // ignore this. internally Perform is running async and the fail state may have changed since
+                // the last check of `isFailing` above.
+            }
 
             if (isFailing) return;
 

osu.Game/Online/API/DummyAPIAccess.cs

@@ -62,13 +62,14 @@ namespace osu.Game.Online.API
         }
 
         public virtual void Queue(APIRequest request)
+        {
+            Schedule(() =>
             {
                 if (HandleRequest?.Invoke(request) != true)
                 {
-                // this will fail due to not receiving an APIAccess, and trigger a failure on the request.
-                // this is intended - any request in testing that needs non-failures should use HandleRequest.
-                request.Perform(this);
+                    request.Fail(new InvalidOperationException($@"{nameof(DummyAPIAccess)} cannot process this request."));
                 }
+            });
         }
 
         public void Perform(APIRequest request) => HandleRequest?.Invoke(request);

osu.Game/Online/Chat/ChannelManager.cs

@@ -61,8 +61,7 @@ namespace osu.Game.Online.Chat
         /// </summary>
         public IBindableList<Channel> AvailableChannels => availableChannels;
 
-        [Resolved]
-        private IAPIProvider api { get; set; }
+        private readonly IAPIProvider api;
 
         [Resolved]
         private UserLookupCache users { get; set; }
@@ -71,8 +70,9 @@ namespace osu.Game.Online.Chat
 
         private readonly IBindable<bool> isIdle = new BindableBool();
 
-        public ChannelManager()
+        public ChannelManager(IAPIProvider api)
         {
+            this.api = api;
             CurrentChannel.ValueChanged += currentChannelChanged;
         }
 

osu.Game/Online/Chat/DrawableLinkCompiler.cs

@@ -38,7 +38,6 @@ namespace osu.Game.Online.Chat
         }
 
         public DrawableLinkCompiler(IEnumerable<Drawable> parts)
-            : base(HoverSampleSet.Submit)
         {
             Parts = parts.ToList();
         }

osu.Game/Online/Chat/MessageNotifier.cs

@@ -77,7 +77,7 @@ namespace osu.Game.Online.Chat
             if (!messages.Any())
                 return;
 
-            var channel = channelManager.JoinedChannels.SingleOrDefault(c => c.Id == messages.First().ChannelId);
+            var channel = channelManager.JoinedChannels.SingleOrDefault(c => c.Id > 0 && c.Id == messages.First().ChannelId);
 
             if (channel == null)
                 return;

osu.Game/Online/Chat/StandAloneChatDisplay.cs

@@ -155,39 +155,42 @@ namespace osu.Game.Online.Chat
         {
             public Func<Message, ChatLine> CreateChatLineAction;
 
-            [Resolved]
-            private OsuColour colours { get; set; }
-
             public StandAloneDrawableChannel(Channel channel)
                 : base(channel)
             {
             }
 
-            [BackgroundDependencyLoader]
-            private void load()
-            {
-                ChatLineFlow.Padding = new MarginPadding { Horizontal = 0 };
-            }
-
             protected override ChatLine CreateChatLine(Message m) => CreateChatLineAction(m);
 
-            protected override Drawable CreateDaySeparator(DateTimeOffset time) => new DaySeparator(time)
+            protected override DaySeparator CreateDaySeparator(DateTimeOffset time) => new StandAloneDaySeparator(time);
+        }
+
+        protected class StandAloneDaySeparator : DaySeparator
         {
-                TextSize = 14,
-                Colour = colours.Yellow,
-                LineHeight = 1,
-                Padding = new MarginPadding { Horizontal = 10 },
-                Margin = new MarginPadding { Vertical = 5 },
-            };
+            protected override float TextSize => 14;
+            protected override float LineHeight => 1;
+            protected override float Spacing => 5;
+            protected override float DateAlign => 125;
+
+            public StandAloneDaySeparator(DateTimeOffset time)
+                : base(time)
+            {
+            }
+
+            [BackgroundDependencyLoader]
+            private void load(OsuColour colours)
+            {
+                Height = 25;
+                Colour = colours.Yellow;
+            }
         }
 
         protected class StandAloneMessage : ChatLine
         {
             protected override float TextSize => 15;
-
-            protected override float HorizontalPadding => 10;
-            protected override float MessagePadding => 120;
-            protected override float TimestampPadding => 50;
+            protected override float Spacing => 5;
+            protected override float TimestampWidth => 45;
+            protected override float UsernameWidth => 75;
 
             public StandAloneMessage(Message message)
                 : base(message)

osu.Game/Online/Multiplayer/MultiplayerClient.cs

@@ -197,6 +197,7 @@ namespace osu.Game.Online.Multiplayer
 
                     APIRoom.Playlist.Clear();
                     APIRoom.Playlist.AddRange(joinedRoom.Playlist.Select(createPlaylistItem));
+                    APIRoom.CurrentPlaylistItem.Value = APIRoom.Playlist.Single(item => item.ID == joinedRoom.Settings.PlaylistItemId);
 
                     Debug.Assert(LocalUser != null);
                     addUserToAPIRoom(LocalUser);
@@ -737,6 +738,7 @@ namespace osu.Game.Online.Multiplayer
             APIRoom.Type.Value = Room.Settings.MatchType;
             APIRoom.QueueMode.Value = Room.Settings.QueueMode;
             APIRoom.AutoStartDuration.Value = Room.Settings.AutoStartDuration;
+            APIRoom.CurrentPlaylistItem.Value = APIRoom.Playlist.Single(item => item.ID == settings.PlaylistItemId);
 
             RoomUpdated?.Invoke();
         }

osu.Game/Online/Rooms/PlaylistItem.cs

@@ -61,7 +61,13 @@ namespace osu.Game.Online.Rooms
         /// Used for serialising to the API.
         /// </summary>
         [JsonProperty("beatmap_id")]
-        private int onlineBeatmapId => Beatmap.OnlineID;
+        private int onlineBeatmapId
+        {
+            get => Beatmap.OnlineID;
+            // This setter is only required for client-side serialise-then-deserialise operations.
+            // Serialisation is supposed to emit only a `beatmap_id`, but a (non-null) `beatmap` is required on deserialise.
+            set => Beatmap = new APIBeatmap { OnlineID = value };
+        }
 
         /// <summary>
         /// A beatmap representing this playlist item.

osu.Game/Online/Rooms/Room.cs

@@ -162,6 +162,13 @@ namespace osu.Game.Online.Rooms
             Password.BindValueChanged(p => HasPassword.Value = !string.IsNullOrEmpty(p.NewValue));
         }
 
+        /// <summary>
+        /// Copies values from another <see cref="Room"/> into this one.
+        /// </summary>
+        /// <remarks>
+        /// **Beware**: This will store references between <see cref="Room"/>s.
+        /// </remarks>
+        /// <param name="other">The <see cref="Room"/> to copy values from.</param>
         public void CopyFrom(Room other)
         {
             RoomID.Value = other.RoomID.Value;

osu.Game/Online/Spectator/SpectatorClient.cs

@@ -39,7 +39,7 @@ namespace osu.Game.Online.Spectator
         /// <summary>
         /// The states of all users currently being watched.
         /// </summary>
-        public IBindableDictionary<int, SpectatorState> WatchedUserStates => watchedUserStates;
+        public virtual IBindableDictionary<int, SpectatorState> WatchedUserStates => watchedUserStates;
 
         /// <summary>
         /// A global list of all players currently playing.
@@ -172,6 +172,7 @@ namespace osu.Game.Online.Spectator
                 currentState.RulesetID = score.ScoreInfo.RulesetID;
                 currentState.Mods = score.ScoreInfo.Mods.Select(m => new APIMod(m)).ToArray();
                 currentState.State = SpectatedUserState.Playing;
+                currentState.MaximumScoringValues = state.ScoreProcessor.MaximumScoringValues;
 
                 currentBeatmap = state.Beatmap;
                 currentScore = score;

osu.Game/Online/Spectator/SpectatorScoreProcessor.cs

@@ -0,0 +1,192 @@
+// 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.
+
+#nullable enable
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using osu.Framework.Allocation;
+using osu.Framework.Bindables;
+using osu.Framework.Extensions.ObjectExtensions;
+using osu.Framework.Graphics;
+using osu.Framework.Timing;
+using osu.Game.Rulesets;
+using osu.Game.Rulesets.Mods;
+using osu.Game.Rulesets.Scoring;
+using osu.Game.Scoring;
+
+namespace osu.Game.Online.Spectator
+{
+    /// <summary>
+    /// A wrapper over a <see cref="ScoreProcessor"/> for spectated users.
+    /// This should be used when a local "playable" beatmap is unavailable or expensive to generate for the spectated user.
+    /// </summary>
+    public class SpectatorScoreProcessor : Component
+    {
+        /// <summary>
+        /// The current total score.
+        /// </summary>
+        public readonly BindableDouble TotalScore = new BindableDouble { MinValue = 0 };
+
+        /// <summary>
+        /// The current accuracy.
+        /// </summary>
+        public readonly BindableDouble Accuracy = new BindableDouble(1) { MinValue = 0, MaxValue = 1 };
+
+        /// <summary>
+        /// The current combo.
+        /// </summary>
+        public readonly BindableInt Combo = new BindableInt();
+
+        /// <summary>
+        /// The <see cref="ScoringMode"/> used to calculate scores.
+        /// </summary>
+        public readonly Bindable<ScoringMode> Mode = new Bindable<ScoringMode>();
+
+        /// <summary>
+        /// The applied <see cref="Mod"/>s.
+        /// </summary>
+        public IReadOnlyList<Mod> Mods => scoreProcessor?.Mods.Value ?? Array.Empty<Mod>();
+
+        private IClock? referenceClock;
+
+        /// <summary>
+        /// The clock used to determine the current score.
+        /// </summary>
+        public IClock ReferenceClock
+        {
+            get => referenceClock ?? Clock;
+            set => referenceClock = value;
+        }
+
+        [Resolved]
+        private SpectatorClient spectatorClient { get; set; } = null!;
+
+        [Resolved]
+        private RulesetStore rulesetStore { get; set; } = null!;
+
+        private readonly IBindableDictionary<int, SpectatorState> spectatorStates = new BindableDictionary<int, SpectatorState>();
+        private readonly List<TimedFrame> replayFrames = new List<TimedFrame>();
+        private readonly int userId;
+
+        private SpectatorState? spectatorState;
+        private ScoreProcessor? scoreProcessor;
+        private ScoreInfo? scoreInfo;
+
+        public SpectatorScoreProcessor(int userId)
+        {
+            this.userId = userId;
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            Mode.BindValueChanged(_ => UpdateScore());
+
+            spectatorStates.BindTo(spectatorClient.WatchedUserStates);
+            spectatorStates.BindCollectionChanged(onSpectatorStatesChanged, true);
+
+            spectatorClient.OnNewFrames += onNewFrames;
+        }
+
+        private void onSpectatorStatesChanged(object? sender, NotifyDictionaryChangedEventArgs<int, SpectatorState> e)
+        {
+            if (!spectatorStates.TryGetValue(userId, out var userState) || userState.BeatmapID == null || userState.RulesetID == null)
+            {
+                scoreProcessor?.RemoveAndDisposeImmediately();
+                scoreProcessor = null;
+                scoreInfo = null;
+                spectatorState = null;
+                replayFrames.Clear();
+                return;
+            }
+
+            if (scoreProcessor != null)
+                return;
+
+            Debug.Assert(scoreInfo == null);
+
+            RulesetInfo? rulesetInfo = rulesetStore.GetRuleset(userState.RulesetID.Value);
+            if (rulesetInfo == null)
+                return;
+
+            Ruleset ruleset = rulesetInfo.CreateInstance();
+
+            spectatorState = userState;
+            scoreInfo = new ScoreInfo { Ruleset = rulesetInfo };
+            scoreProcessor = ruleset.CreateScoreProcessor();
+            scoreProcessor.Mods.Value = userState.Mods.Select(m => m.ToMod(ruleset)).ToArray();
+        }
+
+        private void onNewFrames(int incomingUserId, FrameDataBundle bundle)
+        {
+            if (incomingUserId != userId)
+                return;
+
+            Schedule(() =>
+            {
+                if (scoreProcessor == null)
+                    return;
+
+                replayFrames.Add(new TimedFrame(bundle.Frames.First().Time, bundle.Header));
+                UpdateScore();
+            });
+        }
+
+        public void UpdateScore()
+        {
+            if (scoreInfo == null || replayFrames.Count == 0)
+                return;
+
+            Debug.Assert(spectatorState != null);
+            Debug.Assert(scoreProcessor != null);
+
+            int frameIndex = replayFrames.BinarySearch(new TimedFrame(ReferenceClock.CurrentTime));
+            if (frameIndex < 0)
+                frameIndex = ~frameIndex;
+            frameIndex = Math.Clamp(frameIndex - 1, 0, replayFrames.Count - 1);
+
+            TimedFrame frame = replayFrames[frameIndex];
+            Debug.Assert(frame.Header != null);
+
+            scoreInfo.MaxCombo = frame.Header.MaxCombo;
+            scoreInfo.Statistics = frame.Header.Statistics;
+
+            Accuracy.Value = frame.Header.Accuracy;
+            Combo.Value = frame.Header.Combo;
+
+            scoreProcessor.ExtractScoringValues(frame.Header, out var currentScoringValues, out _);
+            TotalScore.Value = scoreProcessor.ComputeScore(Mode.Value, currentScoringValues, spectatorState.MaximumScoringValues);
+        }
+
+        protected override void Dispose(bool isDisposing)
+        {
+            base.Dispose(isDisposing);
+
+            if (spectatorClient.IsNotNull())
+                spectatorClient.OnNewFrames -= onNewFrames;
+        }
+
+        private class TimedFrame : IComparable<TimedFrame>
+        {
+            public readonly double Time;
+            public readonly FrameHeader? Header;
+
+            public TimedFrame(double time)
+            {
+                Time = time;
+            }
+
+            public TimedFrame(double time, FrameHeader header)
+            {
+                Time = time;
+                Header = header;
+            }
+
+            public int CompareTo(TimedFrame other) => Time.CompareTo(other.Time);
+        }
+    }
+}

osu.Game/Online/Spectator/SpectatorState.cs

@@ -7,6 +7,7 @@ using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using MessagePack;
 using osu.Game.Online.API;
+using osu.Game.Scoring;
 
 namespace osu.Game.Online.Spectator
 {
@@ -27,6 +28,9 @@ namespace osu.Game.Online.Spectator
         [Key(3)]
         public SpectatedUserState State { get; set; }
 
+        [Key(4)]
+        public ScoringValues MaximumScoringValues { get; set; }
+
         public bool Equals(SpectatorState other)
         {
             if (ReferenceEquals(null, other)) return false;

osu.Game/OsuGame.cs

@@ -9,6 +9,7 @@ using System.Threading;
 using System.Threading.Tasks;
 using Humanizer;
 using JetBrains.Annotations;
+using osu.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Audio;
 using osu.Framework.Bindables;
@@ -658,11 +659,14 @@ namespace osu.Game
         }
 
         protected override IDictionary<FrameworkSetting, object> GetFrameworkConfigDefaults()
-            => new Dictionary<FrameworkSetting, object>
         {
-                // General expectation that osu! starts in fullscreen by default (also gives the most predictable performance)
-                { FrameworkSetting.WindowMode, WindowMode.Fullscreen }
+            return new Dictionary<FrameworkSetting, object>
+            {
+                // General expectation that osu! starts in fullscreen by default (also gives the most predictable performance).
+                // However, macOS is bound to have issues when using exclusive fullscreen as it takes full control away from OS, therefore borderless is default there.
+                { FrameworkSetting.WindowMode, RuntimeInfo.OS == RuntimeInfo.Platform.macOS ? WindowMode.Borderless : WindowMode.Fullscreen }
             };
+        }
 
         protected override void LoadComplete()
         {
@@ -847,7 +851,7 @@ namespace osu.Game
             loadComponentSingleFile(dashboard = new DashboardOverlay(), overlayContent.Add, true);
             loadComponentSingleFile(news = new NewsOverlay(), overlayContent.Add, true);
             var rankingsOverlay = loadComponentSingleFile(new RankingsOverlay(), overlayContent.Add, true);
-            loadComponentSingleFile(channelManager = new ChannelManager(), AddInternal, true);
+            loadComponentSingleFile(channelManager = new ChannelManager(API), AddInternal, true);
             loadComponentSingleFile(chatOverlay = new ChatOverlay(), overlayContent.Add, true);
             loadComponentSingleFile(new MessageNotifier(), AddInternal, true);
             loadComponentSingleFile(Settings = new SettingsOverlay(), leftFloatingOverlayContent.Add, true);

osu.Game/OsuGameBase.cs

@@ -80,6 +80,9 @@ namespace osu.Game
 
         public virtual bool UseDevelopmentServer => DebugUtils.IsDebugBuild;
 
+        internal EndpointConfiguration CreateEndpoints() =>
+            UseDevelopmentServer ? (EndpointConfiguration)new DevelopmentEndpointConfiguration() : new ProductionEndpointConfiguration();
+
         public virtual Version AssemblyVersion => Assembly.GetEntryAssembly()?.GetName().Version ?? new Version();
 
         /// <summary>
@@ -268,7 +271,7 @@ namespace osu.Game
             dependencies.Cache(SkinManager = new SkinManager(Storage, realm, Host, Resources, Audio, Scheduler));
             dependencies.CacheAs<ISkinSource>(SkinManager);
 
-            EndpointConfiguration endpoints = UseDevelopmentServer ? (EndpointConfiguration)new DevelopmentEndpointConfiguration() : new ProductionEndpointConfiguration();
+            EndpointConfiguration endpoints = CreateEndpoints();
 
             MessageFormatter.WebsiteRootUrl = endpoints.WebsiteRootUrl;
 

osu.Game/Overlays/AccountCreation/ScreenEntry.cs

@@ -5,6 +5,7 @@ using System;
 using System.Linq;
 using System.Threading.Tasks;
 using osu.Framework.Allocation;
+using osu.Framework.Extensions.LocalisationExtensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Utils;
@@ -69,7 +70,7 @@ namespace osu.Game.Overlays.AccountCreation
                         },
                         usernameTextBox = new OsuTextBox
                         {
-                            PlaceholderText = UsersStrings.LoginUsername,
+                            PlaceholderText = UsersStrings.LoginUsername.ToLower(),
                             RelativeSizeAxes = Axes.X,
                             TabbableContentContainer = this
                         },
@@ -91,7 +92,7 @@ namespace osu.Game.Overlays.AccountCreation
                         },
                         passwordTextBox = new OsuPasswordTextBox
                         {
-                            PlaceholderText = "password",
+                            PlaceholderText = UsersStrings.LoginPassword.ToLower(),
                             RelativeSizeAxes = Axes.X,
                             TabbableContentContainer = this,
                         },

osu.Game/Overlays/BeatmapListing/FilterTabItem.cs

@@ -40,7 +40,7 @@ namespace osu.Game.Overlays.BeatmapListing
                     Font = OsuFont.GetFont(size: 13, weight: FontWeight.Regular),
                     Text = LabelFor(Value)
                 },
-                new HoverClickSounds()
+                new HoverClickSounds(HoverSampleSet.TabSelect)
             });
 
             Enabled.Value = true;

osu.Game/Overlays/Chat/ChatLine.cs

@@ -1,6 +1,8 @@
 // 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.
 
+#nullable enable
+
 using System;
 using System.Linq;
 using System.Collections.Generic;
@@ -26,42 +28,6 @@ namespace osu.Game.Overlays.Chat
 {
     public class ChatLine : CompositeDrawable
     {
-        public const float LEFT_PADDING = default_message_padding + default_horizontal_padding * 2;
-
-        private const float default_message_padding = 200;
-
-        protected virtual float MessagePadding => default_message_padding;
-
-        private const float default_timestamp_padding = 65;
-
-        protected virtual float TimestampPadding => default_timestamp_padding;
-
-        private const float default_horizontal_padding = 15;
-
-        protected virtual float HorizontalPadding => default_horizontal_padding;
-
-        protected virtual float TextSize => 20;
-
-        private Color4 usernameColour;
-
-        private OsuSpriteText timestamp;
-
-        public ChatLine(Message message)
-        {
-            Message = message;
-            Padding = new MarginPadding { Left = HorizontalPadding, Right = HorizontalPadding };
-            RelativeSizeAxes = Axes.X;
-            AutoSizeAxes = Axes.Y;
-        }
-
-        [Resolved(CanBeNull = true)]
-        private ChannelManager chatManager { get; set; }
-
-        private Message message;
-        private OsuSpriteText username;
-
-        public LinkFlowContainer ContentFlow { get; private set; }
-
         public Message Message
         {
             get => message;
@@ -78,75 +44,68 @@ namespace osu.Game.Overlays.Chat
             }
         }
 
+        public LinkFlowContainer ContentFlow { get; private set; } = null!;
+
+        protected virtual float TextSize => 20;
+
+        protected virtual float Spacing => 15;
+
+        protected virtual float TimestampWidth => 60;
+
+        protected virtual float UsernameWidth => 130;
+
+        private Color4 usernameColour;
+
+        private OsuSpriteText timestamp = null!;
+
+        private Message message = null!;
+
+        private OsuSpriteText username = null!;
+
+        private Container? highlight;
+
         private bool senderHasColour => !string.IsNullOrEmpty(message.Sender.Colour);
 
+        private bool messageHasColour => Message.IsAction && senderHasColour;
+
         [Resolved]
-        private OsuColour colours { get; set; }
+        private ChannelManager? chatManager { get; set; }
+
+        [Resolved]
+        private OsuColour colours { get; set; } = null!;
+
+        public ChatLine(Message message)
+        {
+            Message = message;
+            RelativeSizeAxes = Axes.X;
+            AutoSizeAxes = Axes.Y;
+        }
 
         [BackgroundDependencyLoader]
-        private void load()
+        private void load(OverlayColourProvider? colourProvider)
         {
             usernameColour = senderHasColour
                 ? Color4Extensions.FromHex(message.Sender.Colour)
                 : username_colours[message.Sender.Id % username_colours.Length];
 
-            Drawable effectedUsername = username = new OsuSpriteText
+            InternalChild = new GridContainer
             {
-                Shadow = false,
-                Colour = senderHasColour ? colours.ChatBlue : usernameColour,
-                Truncate = true,
-                EllipsisString = "… :",
-                Font = OsuFont.GetFont(size: TextSize, weight: FontWeight.Bold, italics: true),
-                Anchor = Anchor.TopRight,
-                Origin = Anchor.TopRight,
-                MaxWidth = MessagePadding - TimestampPadding
-            };
-
-            if (senderHasColour)
+                RelativeSizeAxes = Axes.X,
+                AutoSizeAxes = Axes.Y,
+                RowDimensions = new[] { new Dimension(GridSizeMode.AutoSize) },
+                ColumnDimensions = new[]
                 {
-                // Background effect
-                effectedUsername = new Container
-                {
-                    AutoSizeAxes = Axes.Both,
-                    Masking = true,
-                    CornerRadius = 4,
-                    EdgeEffect = new EdgeEffectParameters
-                    {
-                        Roundness = 1,
-                        Radius = 1,
-                        Colour = Color4.Black.Opacity(0.3f),
-                        Offset = new Vector2(0, 1),
-                        Type = EdgeEffectType.Shadow,
+                    new Dimension(GridSizeMode.Absolute, TimestampWidth + Spacing + UsernameWidth + Spacing),
+                    new Dimension(),
                 },
-                    Child = new Container
+                Content = new[]
                 {
-                        AutoSizeAxes = Axes.Both,
-                        Y = 0,
-                        Masking = true,
-                        CornerRadius = 4,
-                        Children = new Drawable[]
-                        {
-                            new Box
-                            {
-                                RelativeSizeAxes = Axes.Both,
-                                Colour = usernameColour,
-                            },
-                            new Container
-                            {
-                                AutoSizeAxes = Axes.Both,
-                                Padding = new MarginPadding { Left = 4, Right = 4, Bottom = 1, Top = -2 },
-                                Child = username
-                            }
-                        }
-                    }
-                };
-            }
-
-            InternalChildren = new Drawable[]
+                    new Drawable[]
                     {
                         new Container
                         {
-                    Size = new Vector2(MessagePadding, TextSize),
+                            RelativeSizeAxes = Axes.X,
+                            AutoSizeAxes = Axes.Y,
                             Children = new Drawable[]
                             {
                                 timestamp = new OsuSpriteText
@@ -154,43 +113,32 @@ namespace osu.Game.Overlays.Chat
                                     Shadow = false,
                                     Anchor = Anchor.CentreLeft,
                                     Origin = Anchor.CentreLeft,
-                            Font = OsuFont.GetFont(size: TextSize * 0.75f, weight: FontWeight.SemiBold, fixedWidth: true)
+                                    Font = OsuFont.GetFont(size: TextSize * 0.75f, weight: FontWeight.SemiBold, fixedWidth: true),
+                                    MaxWidth = TimestampWidth,
+                                    Colour = colourProvider?.Background1 ?? Colour4.White,
                                 },
                                 new MessageSender(message.Sender)
                                 {
-                            AutoSizeAxes = Axes.Both,
+                                    Width = UsernameWidth,
+                                    AutoSizeAxes = Axes.Y,
                                     Origin = Anchor.TopRight,
                                     Anchor = Anchor.TopRight,
-                            Child = effectedUsername,
+                                    Child = createUsername(),
+                                    Margin = new MarginPadding { Horizontal = Spacing },
+                                },
                             },
-                    }
                         },
-                new Container
-                {
-                    RelativeSizeAxes = Axes.X,
-                    AutoSizeAxes = Axes.Y,
-                    Padding = new MarginPadding { Left = MessagePadding + HorizontalPadding },
-                    Children = new Drawable[]
-                    {
                         ContentFlow = new LinkFlowContainer(t =>
                         {
                             t.Shadow = false;
-
-                            if (Message.IsAction)
-                            {
-                                t.Font = OsuFont.GetFont(italics: true);
-
-                                if (senderHasColour)
-                                    t.Colour = Color4Extensions.FromHex(message.Sender.Colour);
-                            }
-
-                            t.Font = t.Font.With(size: TextSize);
+                            t.Font = t.Font.With(size: TextSize, italics: Message.IsAction);
+                            t.Colour = messageHasColour ? Color4Extensions.FromHex(message.Sender.Colour) : colourProvider?.Content1 ?? Colour4.White;
                         })
                         {
                             AutoSizeAxes = Axes.Y,
                             RelativeSizeAxes = Axes.X,
                         }
-                    }
+                    },
                 }
             };
         }
@@ -203,8 +151,6 @@ namespace osu.Game.Overlays.Chat
             FinishTransforms(true);
         }
 
-        private Container highlight;
-
         /// <summary>
         /// Performs a highlight animation on this <see cref="ChatLine"/>.
         /// </summary>
@@ -233,7 +179,7 @@ namespace osu.Game.Overlays.Chat
             timestamp.FadeTo(message is LocalEchoMessage ? 0 : 1, 500, Easing.OutQuint);
 
             timestamp.Text = $@"{message.Timestamp.LocalDateTime:HH:mm:ss}";
-            username.Text = $@"{message.Sender.Username}" + (senderHasColour || message.IsAction ? "" : ":");
+            username.Text = $@"{message.Sender.Username}";
 
             // remove non-existent channels from the link list
             message.Links.RemoveAll(link => link.Action == LinkAction.OpenChannel && chatManager?.AvailableChannels.Any(c => c.Name == link.Argument.ToString()) != true);
@@ -242,22 +188,78 @@ namespace osu.Game.Overlays.Chat
             ContentFlow.AddLinks(message.DisplayContent, message.Links);
         }
 
+        private Drawable createUsername()
+        {
+            username = new OsuSpriteText
+            {
+                Shadow = false,
+                Colour = senderHasColour ? colours.ChatBlue : usernameColour,
+                Truncate = true,
+                EllipsisString = "…",
+                Font = OsuFont.GetFont(size: TextSize, weight: FontWeight.Bold, italics: true),
+                Anchor = Anchor.TopRight,
+                Origin = Anchor.TopRight,
+                MaxWidth = UsernameWidth,
+            };
+
+            if (!senderHasColour)
+                return username;
+
+            // Background effect
+            return new Container
+            {
+                Anchor = Anchor.TopRight,
+                Origin = Anchor.TopRight,
+                AutoSizeAxes = Axes.Both,
+                Masking = true,
+                CornerRadius = 4,
+                EdgeEffect = new EdgeEffectParameters
+                {
+                    Roundness = 1,
+                    Radius = 1,
+                    Colour = Color4.Black.Opacity(0.3f),
+                    Offset = new Vector2(0, 1),
+                    Type = EdgeEffectType.Shadow,
+                },
+                Child = new Container
+                {
+                    AutoSizeAxes = Axes.Both,
+                    Masking = true,
+                    CornerRadius = 4,
+                    Children = new Drawable[]
+                    {
+                        new Box
+                        {
+                            RelativeSizeAxes = Axes.Both,
+                            Colour = usernameColour,
+                        },
+                        new Container
+                        {
+                            AutoSizeAxes = Axes.Both,
+                            Padding = new MarginPadding { Left = 4, Right = 4, Bottom = 1, Top = -2 },
+                            Child = username
+                        }
+                    }
+                }
+            };
+        }
+
         private class MessageSender : OsuClickableContainer, IHasContextMenu
         {
             private readonly APIUser sender;
 
-            private Action startChatAction;
+            private Action startChatAction = null!;
 
             [Resolved]
-            private IAPIProvider api { get; set; }
+            private IAPIProvider api { get; set; } = null!;
 
             public MessageSender(APIUser sender)
             {
                 this.sender = sender;
             }
 
-            [BackgroundDependencyLoader(true)]
-            private void load(UserProfileOverlay profile, ChannelManager chatManager)
+            [BackgroundDependencyLoader]
+            private void load(UserProfileOverlay? profile, ChannelManager? chatManager)
             {
                 Action = () => profile?.ShowUser(sender);
                 startChatAction = () => chatManager?.OpenPrivateChannel(sender);

osu.Game/Overlays/Chat/ChatOverlayDrawableChannel.cs

@@ -1,109 +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.
-
-#nullable enable
-
-using System;
-using osu.Framework.Allocation;
-using osu.Framework.Graphics;
-using osu.Framework.Graphics.Containers;
-using osu.Framework.Graphics.Shapes;
-using osu.Game.Graphics;
-using osu.Game.Graphics.Sprites;
-using osu.Game.Online.Chat;
-
-namespace osu.Game.Overlays.Chat
-{
-    public class ChatOverlayDrawableChannel : DrawableChannel
-    {
-        public ChatOverlayDrawableChannel(Channel channel)
-            : base(channel)
-        {
-        }
-
-        [BackgroundDependencyLoader]
-        private void load()
-        {
-            ChatLineFlow.Padding = new MarginPadding(0);
-        }
-
-        protected override Drawable CreateDaySeparator(DateTimeOffset time) => new ChatOverlayDaySeparator(time);
-
-        private class ChatOverlayDaySeparator : Container
-        {
-            private readonly DateTimeOffset time;
-
-            public ChatOverlayDaySeparator(DateTimeOffset time)
-            {
-                this.time = time;
-            }
-
-            [BackgroundDependencyLoader]
-            private void load(OverlayColourProvider colourProvider)
-            {
-                RelativeSizeAxes = Axes.X;
-                AutoSizeAxes = Axes.Y;
-                Padding = new MarginPadding { Horizontal = 15, Vertical = 20 };
-                Child = new GridContainer
-                {
-                    RelativeSizeAxes = Axes.X,
-                    AutoSizeAxes = Axes.Y,
-                    ColumnDimensions = new[]
-                    {
-                        new Dimension(GridSizeMode.Absolute, 200),
-                        new Dimension(GridSizeMode.Absolute, 15),
-                        new Dimension(),
-                    },
-                    Content = new[]
-                    {
-                        new[]
-                        {
-                            new GridContainer
-                            {
-                                RelativeSizeAxes = Axes.Both,
-                                ColumnDimensions = new[]
-                                {
-                                    new Dimension(),
-                                    new Dimension(GridSizeMode.Absolute, 15),
-                                    new Dimension(GridSizeMode.AutoSize),
-                                },
-                                Content = new[]
-                                {
-                                    new[]
-                                    {
-                                        new Circle
-                                        {
-                                            Anchor = Anchor.CentreRight,
-                                            Origin = Anchor.CentreRight,
-                                            Colour = colourProvider.Background5,
-                                            RelativeSizeAxes = Axes.X,
-                                            Height = 2,
-                                        },
-                                        Drawable.Empty(),
-                                        new OsuSpriteText
-                                        {
-                                            Anchor = Anchor.CentreRight,
-                                            Origin = Anchor.CentreRight,
-                                            Text = time.ToLocalTime().ToString("dd MMMM yyyy").ToUpper(),
-                                            Font = OsuFont.Torus.With(size: 15, weight: FontWeight.SemiBold),
-                                            Colour = colourProvider.Content1,
-                                        },
-                                    },
-                                },
-                            },
-                            Drawable.Empty(),
-                            new Circle
-                            {
-                                Anchor = Anchor.CentreLeft,
-                                Origin = Anchor.CentreLeft,
-                                Colour = colourProvider.Background5,
-                                RelativeSizeAxes = Axes.X,
-                                Height = 2,
-                            },
-                        },
-                    },
-                };
-            }
-        }
-    }
-}

osu.Game/Overlays/Chat/DaySeparator.cs

@@ -0,0 +1,105 @@
+// 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.
+
+#nullable enable
+
+using System;
+using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Graphics;
+using osu.Game.Graphics.Sprites;
+
+namespace osu.Game.Overlays.Chat
+{
+    public class DaySeparator : Container
+    {
+        protected virtual float TextSize => 15;
+
+        protected virtual float LineHeight => 2;
+
+        protected virtual float DateAlign => 205;
+
+        protected virtual float Spacing => 15;
+
+        private readonly DateTimeOffset time;
+
+        [Resolved(CanBeNull = true)]
+        private OverlayColourProvider? colourProvider { get; set; }
+
+        public DaySeparator(DateTimeOffset time)
+        {
+            this.time = time;
+            Height = 40;
+        }
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            RelativeSizeAxes = Axes.X;
+            Child = new GridContainer
+            {
+                RelativeSizeAxes = Axes.Both,
+                Anchor = Anchor.CentreLeft,
+                Origin = Anchor.CentreLeft,
+                RowDimensions = new[] { new Dimension() },
+                ColumnDimensions = new[]
+                {
+                    new Dimension(GridSizeMode.Absolute, DateAlign),
+                    new Dimension(GridSizeMode.Absolute, Spacing),
+                    new Dimension(),
+                },
+                Content = new[]
+                {
+                    new[]
+                    {
+                        new GridContainer
+                        {
+                            RelativeSizeAxes = Axes.Both,
+                            RowDimensions = new[] { new Dimension() },
+                            ColumnDimensions = new[]
+                            {
+                                new Dimension(),
+                                new Dimension(GridSizeMode.Absolute, Spacing),
+                                new Dimension(GridSizeMode.AutoSize),
+                            },
+                            Content = new[]
+                            {
+                                new[]
+                                {
+                                    new Circle
+                                    {
+                                        Anchor = Anchor.Centre,
+                                        Origin = Anchor.Centre,
+                                        RelativeSizeAxes = Axes.X,
+                                        Height = LineHeight,
+                                        Colour = colourProvider?.Background5 ?? Colour4.White,
+                                    },
+                                    Drawable.Empty(),
+                                    new OsuSpriteText
+                                    {
+                                        Anchor = Anchor.CentreRight,
+                                        Origin = Anchor.CentreRight,
+                                        Text = time.ToLocalTime().ToString("dd MMMM yyyy").ToUpper(),
+                                        Font = OsuFont.Torus.With(size: TextSize, weight: FontWeight.SemiBold),
+                                        Colour = colourProvider?.Content1 ?? Colour4.White,
+                                    },
+                                }
+                            },
+                        },
+                        Drawable.Empty(),
+                        new Circle
+                        {
+                            Anchor = Anchor.Centre,
+                            Origin = Anchor.Centre,
+                            RelativeSizeAxes = Axes.X,
+                            Height = LineHeight,
+                            Colour = colourProvider?.Background5 ?? Colour4.White,
+                        },
+                    }
+                }
+            };
+        }
+    }
+}

osu.Game/Overlays/Chat/DrawableChannel.cs

@@ -7,14 +7,9 @@ using System.Diagnostics;
 using System.Linq;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;
-using osu.Framework.Extensions.Color4Extensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
-using osu.Framework.Graphics.Shapes;
-using osu.Framework.Graphics.Sprites;
-using osu.Game.Graphics;
 using osu.Game.Graphics.Cursor;
-using osu.Game.Graphics.Sprites;
 using osu.Game.Online.Chat;
 using osuTK.Graphics;
 
@@ -40,9 +35,6 @@ namespace osu.Game.Overlays.Chat
             }
         }
 
-        [Resolved]
-        private OsuColour colours { get; set; }
-
         public DrawableChannel(Channel channel)
         {
             Channel = channel;
@@ -67,7 +59,7 @@ namespace osu.Game.Overlays.Chat
                     Padding = new MarginPadding { Bottom = 5 },
                     Child = ChatLineFlow = new FillFlowContainer
                     {
-                        Padding = new MarginPadding { Left = 20, Right = 20 },
+                        Padding = new MarginPadding { Horizontal = 10 },
                         RelativeSizeAxes = Axes.X,
                         AutoSizeAxes = Axes.Y,
                         Direction = FillDirection.Vertical,
@@ -121,11 +113,7 @@ namespace osu.Game.Overlays.Chat
 
         protected virtual ChatLine CreateChatLine(Message m) => new ChatLine(m);
 
-        protected virtual Drawable CreateDaySeparator(DateTimeOffset time) => new DaySeparator(time)
-        {
-            Colour = colours.ChatBlue.Lighten(0.7f),
-            Margin = new MarginPadding { Vertical = 10 },
-        };
+        protected virtual DaySeparator CreateDaySeparator(DateTimeOffset time) => new DaySeparator(time);
 
         private void newMessagesArrived(IEnumerable<Message> newMessages) => Schedule(() =>
         {
@@ -203,69 +191,5 @@ namespace osu.Game.Overlays.Chat
         });
 
         private IEnumerable<ChatLine> chatLines => ChatLineFlow.Children.OfType<ChatLine>();
-
-        public class DaySeparator : Container
-        {
-            public float TextSize
-            {
-                get => text.Font.Size;
-                set => text.Font = text.Font.With(size: value);
-            }
-
-            private float lineHeight = 2;
-
-            public float LineHeight
-            {
-                get => lineHeight;
-                set => lineHeight = leftBox.Height = rightBox.Height = value;
-            }
-
-            private readonly SpriteText text;
-            private readonly Box leftBox;
-            private readonly Box rightBox;
-
-            public DaySeparator(DateTimeOffset time)
-            {
-                RelativeSizeAxes = Axes.X;
-                AutoSizeAxes = Axes.Y;
-                Child = new GridContainer
-                {
-                    RelativeSizeAxes = Axes.X,
-                    AutoSizeAxes = Axes.Y,
-                    ColumnDimensions = new[]
-                    {
-                        new Dimension(),
-                        new Dimension(GridSizeMode.AutoSize),
-                        new Dimension(),
-                    },
-                    RowDimensions = new[] { new Dimension(GridSizeMode.AutoSize), },
-                    Content = new[]
-                    {
-                        new Drawable[]
-                        {
-                            leftBox = new Box
-                            {
-                                Anchor = Anchor.Centre,
-                                Origin = Anchor.Centre,
-                                RelativeSizeAxes = Axes.X,
-                                Height = lineHeight,
-                            },
-                            text = new OsuSpriteText
-                            {
-                                Margin = new MarginPadding { Horizontal = 10 },
-                                Text = time.ToLocalTime().ToString("dd MMM yyyy"),
-                            },
-                            rightBox = new Box
-                            {
-                                Anchor = Anchor.Centre,
-                                Origin = Anchor.Centre,
-                                RelativeSizeAxes = Axes.X,
-                                Height = lineHeight,
-                            },
-                        }
-                    }
-                };
-            }
-        }
     }
 }

osu.Game/Overlays/Chat/Listing/ChannelListingItem.cs

@@ -6,6 +6,8 @@
 using System;
 using System.Collections.Generic;
 using osu.Framework.Allocation;
+using osu.Framework.Audio;
+using osu.Framework.Audio.Sample;
 using osu.Framework.Bindables;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
@@ -16,6 +18,7 @@ using osu.Framework.Localisation;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.Sprites;
+using osu.Game.Graphics.UserInterface;
 using osu.Game.Online.Chat;
 using osuTK;
 
@@ -32,6 +35,8 @@ namespace osu.Game.Overlays.Chat.Listing
         public IEnumerable<LocalisableString> FilterTerms => new LocalisableString[] { Channel.Name, Channel.Topic ?? string.Empty };
         public bool MatchingFilter { set => this.FadeTo(value ? 1f : 0f, 100); }
 
+        protected override HoverSounds CreateHoverSounds(HoverSampleSet sampleSet) => new HoverSounds();
+
         private Box hoverBox = null!;
         private SpriteIcon checkbox = null!;
         private OsuSpriteText channelText = null!;
@@ -46,14 +51,20 @@ namespace osu.Game.Overlays.Chat.Listing
 
         private const float vertical_margin = 1.5f;
 
+        private Sample? sampleJoin;
+        private Sample? sampleLeave;
+
         public ChannelListingItem(Channel channel)
         {
             Channel = channel;
         }
 
         [BackgroundDependencyLoader]
-        private void load()
+        private void load(AudioManager audio)
         {
+            sampleJoin = audio.Samples.Get(@"UI/check-on");
+            sampleLeave = audio.Samples.Get(@"UI/check-off");
+
             Masking = true;
             CornerRadius = 5;
             RelativeSizeAxes = Axes.X;
@@ -156,7 +167,19 @@ namespace osu.Game.Overlays.Chat.Listing
                 }
             }, true);
 
-            Action = () => (channelJoined.Value ? OnRequestLeave : OnRequestJoin)?.Invoke(Channel);
+            Action = () =>
+            {
+                if (channelJoined.Value)
+                {
+                    OnRequestLeave?.Invoke(Channel);
+                    sampleLeave?.Play();
+                }
+                else
+                {
+                    OnRequestJoin?.Invoke(Channel);
+                    sampleJoin?.Play();
+                }
+            };
         }
 
         protected override bool OnHover(HoverEvent e)

osu.Game/Overlays/ChatOverlay.cs

@@ -38,9 +38,9 @@ namespace osu.Game.Overlays
         private LoadingLayer loading = null!;
         private ChannelListing channelListing = null!;
         private ChatTextBar textBar = null!;
-        private Container<ChatOverlayDrawableChannel> currentChannelContainer = null!;
+        private Container<DrawableChannel> currentChannelContainer = null!;
 
-        private readonly Dictionary<Channel, ChatOverlayDrawableChannel> loadedChannels = new Dictionary<Channel, ChatOverlayDrawableChannel>();
+        private readonly Dictionary<Channel, DrawableChannel> loadedChannels = new Dictionary<Channel, DrawableChannel>();
 
         protected IEnumerable<DrawableChannel> DrawableChannels => loadedChannels.Values;
 
@@ -126,7 +126,7 @@ namespace osu.Game.Overlays
                             RelativeSizeAxes = Axes.Both,
                             Colour = colourProvider.Background4,
                         },
-                        currentChannelContainer = new Container<ChatOverlayDrawableChannel>
+                        currentChannelContainer = new Container<DrawableChannel>
                         {
                             RelativeSizeAxes = Axes.Both,
                         },
@@ -313,7 +313,7 @@ namespace osu.Game.Overlays
                     loading.Show();
 
                     // Ensure the drawable channel is stored before async load to prevent double loading
-                    ChatOverlayDrawableChannel drawableChannel = CreateDrawableChannel(newChannel);
+                    DrawableChannel drawableChannel = CreateDrawableChannel(newChannel);
                     loadedChannels.Add(newChannel, drawableChannel);
 
                     LoadComponentAsync(drawableChannel, loadedDrawable =>
@@ -338,7 +338,7 @@ namespace osu.Game.Overlays
                 channelManager.MarkChannelAsRead(newChannel);
         }
 
-        protected virtual ChatOverlayDrawableChannel CreateDrawableChannel(Channel newChannel) => new ChatOverlayDrawableChannel(newChannel);
+        protected virtual DrawableChannel CreateDrawableChannel(Channel newChannel) => new DrawableChannel(newChannel);
 
         private void joinedChannelsChanged(object sender, NotifyCollectionChangedEventArgs args)
         {
@@ -361,7 +361,7 @@ namespace osu.Game.Overlays
 
                         if (loadedChannels.ContainsKey(channel))
                         {
-                            ChatOverlayDrawableChannel loaded = loadedChannels[channel];
+                            DrawableChannel loaded = loadedChannels[channel];
                             loadedChannels.Remove(channel);
                             // DrawableChannel removed from cache must be manually disposed
                             loaded.Dispose();

osu.Game/Overlays/FirstRunSetup/ScreenBeatmaps.cs

@@ -154,12 +154,15 @@ namespace osu.Game.Overlays.FirstRunSetup
 
             var downloadTracker = tutorialDownloader.DownloadTrackers.First();
 
+            downloadTracker.State.BindValueChanged(state =>
+            {
+                if (state.NewValue == DownloadState.LocallyAvailable)
+                    downloadTutorialButton.Complete();
+            }, true);
+
             downloadTracker.Progress.BindValueChanged(progress =>
             {
                 downloadTutorialButton.SetProgress(progress.NewValue, false);
-
-                if (progress.NewValue == 1)
-                    downloadTutorialButton.Complete();
             }, true);
         }
 

osu.Game/Overlays/FirstRunSetup/ScreenUIScale.cs

@@ -126,6 +126,7 @@ namespace osu.Game.Overlays.FirstRunSetup
         private class SampleScreenContainer : CompositeDrawable
         {
             private readonly OsuScreen screen;
+
             // Minimal isolation from main game.
 
             [Cached]
@@ -151,6 +152,9 @@ namespace osu.Game.Overlays.FirstRunSetup
                 RelativeSizeAxes = Axes.Both;
             }
 
+            protected override IReadOnlyDependencyContainer CreateChildDependencies(IReadOnlyDependencyContainer parent) =>
+                new DependencyContainer(new DependencyIsolationContainer(base.CreateChildDependencies(parent)));
+
             [BackgroundDependencyLoader]
             private void load(AudioManager audio, TextureStore textures, RulesetStore rulesets)
             {
@@ -197,5 +201,41 @@ namespace osu.Game.Overlays.FirstRunSetup
                 stack.PushSynchronously(screen);
             }
         }
+
+        private class DependencyIsolationContainer : IReadOnlyDependencyContainer
+        {
+            private readonly IReadOnlyDependencyContainer parentDependencies;
+
+            private readonly Type[] isolatedTypes =
+            {
+                typeof(OsuGame)
+            };
+
+            public DependencyIsolationContainer(IReadOnlyDependencyContainer parentDependencies)
+            {
+                this.parentDependencies = parentDependencies;
+            }
+
+            public object Get(Type type)
+            {
+                if (isolatedTypes.Contains(type))
+                    return null;
+
+                return parentDependencies.Get(type);
+            }
+
+            public object Get(Type type, CacheInfo info)
+            {
+                if (isolatedTypes.Contains(type))
+                    return null;
+
+                return parentDependencies.Get(type, info);
+            }
+
+            public void Inject<T>(T instance) where T : class
+            {
+                parentDependencies.Inject(instance);
+            }
+        }
     }
 }

osu.Game/Overlays/News/NewsCard.cs

@@ -14,7 +14,6 @@ using osu.Framework.Platform;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.Sprites;
-using osu.Game.Graphics.UserInterface;
 using osu.Game.Online.API.Requests.Responses;
 
 namespace osu.Game.Overlays.News
@@ -29,7 +28,6 @@ namespace osu.Game.Overlays.News
         private TextFlowContainer main;
 
         public NewsCard(APINewsPost post)
-            : base(HoverSampleSet.Submit)
         {
             this.post = post;
 

osu.Game/Overlays/News/Sidebar/MonthSection.cs

@@ -18,7 +18,6 @@ using System.Diagnostics;
 using osu.Framework.Audio;
 using osu.Framework.Audio.Sample;
 using osu.Framework.Platform;
-using osu.Game.Graphics.UserInterface;
 
 namespace osu.Game.Overlays.News.Sidebar
 {
@@ -129,7 +128,6 @@ namespace osu.Game.Overlays.News.Sidebar
             private readonly APINewsPost post;
 
             public PostButton(APINewsPost post)
-                : base(HoverSampleSet.Submit)
             {
                 this.post = post;
 

osu.Game/Overlays/Profile/Header/Components/ExpandDetailsButton.cs

@@ -25,7 +25,7 @@ namespace osu.Game.Overlays.Profile.Header.Components
         private Sample sampleOpen;
         private Sample sampleClose;
 
-        protected override HoverSounds CreateHoverSounds(HoverSampleSet sampleSet) => new HoverSounds();
+        protected override HoverSounds CreateHoverSounds(HoverSampleSet sampleSet) => new HoverClickSounds();
 
         public ExpandDetailsButton()
         {

osu.Game/Overlays/Profile/Sections/BeatmapMetadataContainer.cs

@@ -6,7 +6,6 @@ using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Game.Beatmaps;
 using osu.Game.Graphics.Containers;
-using osu.Game.Graphics.UserInterface;
 
 namespace osu.Game.Overlays.Profile.Sections
 {
@@ -18,7 +17,6 @@ namespace osu.Game.Overlays.Profile.Sections
         private readonly IBeatmapInfo beatmapInfo;
 
         protected BeatmapMetadataContainer(IBeatmapInfo beatmapInfo)
-            : base(HoverSampleSet.Submit)
         {
             this.beatmapInfo = beatmapInfo;
 

osu.Game/Overlays/Settings/Sections/Graphics/LayoutSettings.cs

@@ -4,6 +4,7 @@
 using System;
 using System.Drawing;
 using System.Linq;
+using osu.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;
 using osu.Framework.Configuration;
@@ -13,6 +14,7 @@ using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
 using osu.Framework.Localisation;
 using osu.Framework.Platform;
+using osu.Framework.Platform.Windows;
 using osu.Game.Configuration;
 using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.UserInterface;
@@ -34,10 +36,14 @@ namespace osu.Game.Overlays.Settings.Sections.Graphics
         private Bindable<Size> sizeFullscreen;
 
         private readonly BindableList<Size> resolutions = new BindableList<Size>(new[] { new Size(9999, 9999) });
+        private readonly IBindable<FullscreenCapability> fullscreenCapability = new Bindable<FullscreenCapability>(FullscreenCapability.Capable);
 
         [Resolved]
         private OsuGameBase game { get; set; }
 
+        [Resolved]
+        private GameHost host { get; set; }
+
         private SettingsDropdown<Size> resolutionDropdown;
         private SettingsDropdown<Display> displayDropdown;
         private SettingsDropdown<WindowMode> windowModeDropdown;
@@ -65,6 +71,9 @@ namespace osu.Game.Overlays.Settings.Sections.Graphics
                 windowModes.BindTo(host.Window.SupportedWindowModes);
             }
 
+            if (host.Window is WindowsWindow windowsWindow)
+                fullscreenCapability.BindTo(windowsWindow.FullscreenCapability);
+
             Children = new Drawable[]
             {
                 windowModeDropdown = new SettingsDropdown<WindowMode>
@@ -139,6 +148,8 @@ namespace osu.Game.Overlays.Settings.Sections.Graphics
                     }
                 },
             };
+
+            fullscreenCapability.BindValueChanged(_ => Schedule(updateScreenModeWarning), true);
         }
 
         protected override void LoadComplete()
@@ -150,8 +161,7 @@ namespace osu.Game.Overlays.Settings.Sections.Graphics
             windowModeDropdown.Current.BindValueChanged(mode =>
             {
                 updateDisplayModeDropdowns();
-
-                windowModeDropdown.WarningText = mode.NewValue != WindowMode.Fullscreen ? GraphicsSettingsStrings.NotFullscreenNote : default;
+                updateScreenModeWarning();
             }, true);
 
             windowModes.BindCollectionChanged((sender, args) =>
@@ -213,6 +223,48 @@ namespace osu.Game.Overlays.Settings.Sections.Graphics
             }
         }
 
+        private void updateScreenModeWarning()
+        {
+            if (RuntimeInfo.OS == RuntimeInfo.Platform.macOS)
+            {
+                if (windowModeDropdown.Current.Value == WindowMode.Fullscreen)
+                    windowModeDropdown.SetNoticeText(LayoutSettingsStrings.FullscreenMacOSNote, true);
+                else
+                    windowModeDropdown.ClearNoticeText();
+
+                return;
+            }
+
+            if (windowModeDropdown.Current.Value != WindowMode.Fullscreen)
+            {
+                windowModeDropdown.SetNoticeText(GraphicsSettingsStrings.NotFullscreenNote, true);
+                return;
+            }
+
+            if (host.Window is WindowsWindow)
+            {
+                switch (fullscreenCapability.Value)
+                {
+                    case FullscreenCapability.Unknown:
+                        windowModeDropdown.SetNoticeText(LayoutSettingsStrings.CheckingForFullscreenCapabilities, true);
+                        break;
+
+                    case FullscreenCapability.Capable:
+                        windowModeDropdown.SetNoticeText(LayoutSettingsStrings.OsuIsRunningExclusiveFullscreen);
+                        break;
+
+                    case FullscreenCapability.Incapable:
+                        windowModeDropdown.SetNoticeText(LayoutSettingsStrings.UnableToRunExclusiveFullscreen, true);
+                        break;
+                }
+            }
+            else
+            {
+                // We can only detect exclusive fullscreen status on windows currently.
+                windowModeDropdown.ClearNoticeText();
+            }
+        }
+
         private void bindPreviewEvent(Bindable<float> bindable)
         {
             bindable.ValueChanged += _ =>

osu.Game/Overlays/Settings/Sections/Graphics/RendererSettings.cs

@@ -48,7 +48,16 @@ namespace osu.Game.Overlays.Settings.Sections.Graphics
 
             frameLimiterDropdown.Current.BindValueChanged(limit =>
             {
-                frameLimiterDropdown.WarningText = limit.NewValue == FrameSync.Unlimited ? GraphicsSettingsStrings.UnlimitedFramesNote : default;
+                switch (limit.NewValue)
+                {
+                    case FrameSync.Unlimited:
+                        frameLimiterDropdown.SetNoticeText(GraphicsSettingsStrings.UnlimitedFramesNote, true);
+                        break;
+
+                    default:
+                        frameLimiterDropdown.ClearNoticeText();
+                        break;
+                }
             }, true);
         }
     }

osu.Game/Overlays/Settings/Sections/Input/MouseSettings.cs

@@ -117,9 +117,9 @@ namespace osu.Game.Overlays.Settings.Sections.Input
                 if (RuntimeInfo.OS != RuntimeInfo.Platform.Windows)
                 {
                     if (highPrecision.NewValue)
-                        highPrecisionMouse.WarningText = MouseSettingsStrings.HighPrecisionPlatformWarning;
+                        highPrecisionMouse.SetNoticeText(MouseSettingsStrings.HighPrecisionPlatformWarning, true);
                     else
-                        highPrecisionMouse.WarningText = null;
+                        highPrecisionMouse.ClearNoticeText();
                 }
             }, true);
         }

osu.Game/Overlays/Settings/Sections/Input/TabletSettings.cs

@@ -11,6 +11,7 @@ using osu.Framework.Localisation;
 using osu.Framework.Platform;
 using osu.Framework.Threading;
 using osu.Game.Graphics;
+using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.Sprites;
 using osuTK;
 using osu.Game.Localisation;
@@ -95,11 +96,13 @@ namespace osu.Game.Overlays.Settings.Sections.Input
                             Origin = Anchor.TopCentre,
                             Text = TabletSettingsStrings.NoTabletDetected,
                         },
-                        new SettingsNoticeText(colours)
+                        new LinkFlowContainer(cp => cp.Colour = colours.Yellow)
                         {
                             TextAnchor = Anchor.TopCentre,
                             Anchor = Anchor.TopCentre,
                             Origin = Anchor.TopCentre,
+                            RelativeSizeAxes = Axes.X,
+                            AutoSizeAxes = Axes.Y,
                         }.With(t =>
                         {
                             if (RuntimeInfo.OS == RuntimeInfo.Platform.Windows || RuntimeInfo.OS == RuntimeInfo.Platform.Linux)

osu.Game/Overlays/Settings/Sections/Maintenance/GeneralSettings.cs

@@ -28,6 +28,7 @@ namespace osu.Game.Overlays.Settings.Sections.Maintenance
         private SettingsButton deleteSkinsButton;
         private SettingsButton restoreButton;
         private SettingsButton undeleteButton;
+        private SettingsButton deleteBeatmapVideosButton;
 
         [BackgroundDependencyLoader(permitNulls: true)]
         private void load(BeatmapManager beatmaps, ScoreManager scores, SkinManager skins, [CanBeNull] CollectionManager collectionManager, [CanBeNull] LegacyImportManager legacyImportManager, IDialogOverlay dialogOverlay)
@@ -58,6 +59,19 @@ namespace osu.Game.Overlays.Settings.Sections.Maintenance
                 }
             });
 
+            Add(deleteBeatmapVideosButton = new DangerousSettingsButton
+            {
+                Text = MaintenanceSettingsStrings.DeleteAllBeatmapVideos,
+                Action = () =>
+                {
+                    dialogOverlay?.Push(new MassVideoDeleteConfirmationDialog(() =>
+                    {
+                        deleteBeatmapVideosButton.Enabled.Value = false;
+                        Task.Run(beatmaps.DeleteAllVideos).ContinueWith(t => Schedule(() => deleteBeatmapVideosButton.Enabled.Value = true));
+                    }));
+                }
+            });
+
             if (legacyImportManager?.SupportsImportFromStable == true)
             {
                 Add(importScoresButton = new SettingsButton

osu.Game/Overlays/Settings/Sections/Maintenance/MassVideoDeleteConfirmationDialog.cs

@@ -0,0 +1,16 @@
+// 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;
+
+namespace osu.Game.Overlays.Settings.Sections.Maintenance
+{
+    public class MassVideoDeleteConfirmationDialog : MassDeleteConfirmationDialog
+    {
+        public MassVideoDeleteConfirmationDialog(Action deleteAction)
+            : base(deleteAction)
+        {
+            BodyText = "All beatmap videos? This cannot be undone!";
+        }
+    }
+}