Merge branch 'master' into infrastructure

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+    - name: osu!stable issues
+      url: https://github.com/ppy/osu-stable-issues
+      about: For issues regarding osu!stable (not osu!lazer), open them here.

.github/ISSUE_TEMPLATE/missing-for-live-issues.md

@@ -1,7 +0,0 @@
----
-name: Missing for Live
-about: Features which are available in osu!stable but not yet in osu!lazer.
----
-**Describe the missing feature:** 
-
-**Proposal designs of the feature:** 

osu.Android.props

@@ -53,6 +53,6 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="ppy.osu.Game.Resources" Version="2019.1010.0" />
-    <PackageReference Include="ppy.osu.Framework.Android" Version="2019.1029.0" />
+    <PackageReference Include="ppy.osu.Framework.Android" Version="2019.1106.0" />
   </ItemGroup>
 </Project>

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

@@ -2,7 +2,7 @@
   <Import Project="..\osu.TestProject.props" />
   <ItemGroup Label="Package References">
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.3.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
     <PackageReference Update="Microsoft.EntityFrameworkCore.Sqlite" Version="2.1.4" />

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

@@ -2,7 +2,7 @@
   <Import Project="..\osu.TestProject.props" />
   <ItemGroup Label="Package References">
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.3.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
     <PackageReference Update="Microsoft.EntityFrameworkCore.Sqlite" Version="2.1.4" />

osu.Game.Rulesets.Mania/Edit/ManiaSelectionHandler.cs

@@ -29,7 +29,7 @@ namespace osu.Game.Rulesets.Mania.Edit
             editorClock = clock;
         }
 
-        public override void HandleMovement(MoveSelectionEvent moveEvent)
+        public override bool HandleMovement(MoveSelectionEvent moveEvent)
         {
             var maniaBlueprint = (ManiaSelectionBlueprint)moveEvent.Blueprint;
             int lastColumn = maniaBlueprint.DrawableObject.HitObject.Column;
@@ -38,7 +38,7 @@ namespace osu.Game.Rulesets.Mania.Edit
             performDragMovement(moveEvent);
             performColumnMovement(lastColumn, moveEvent);
 
-            base.HandleMovement(moveEvent);
+            return true;
         }
 
         /// <summary>

osu.Game.Rulesets.Osu.Tests/TestSceneFollowPoints.cs

@@ -0,0 +1,230 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System;
+using NUnit.Framework;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Game.Beatmaps;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Rulesets.Osu.Objects;
+using osu.Game.Rulesets.Osu.Objects.Drawables;
+using osu.Game.Rulesets.Osu.Objects.Drawables.Connections;
+using osu.Game.Tests.Visual;
+using osuTK;
+
+namespace osu.Game.Rulesets.Osu.Tests
+{
+    public class TestSceneFollowPoints : OsuTestScene
+    {
+        private Container<DrawableOsuHitObject> hitObjectContainer;
+        private FollowPointRenderer followPointRenderer;
+
+        [SetUp]
+        public void Setup() => Schedule(() =>
+        {
+            Children = new Drawable[]
+            {
+                hitObjectContainer = new TestHitObjectContainer { RelativeSizeAxes = Axes.Both },
+                followPointRenderer = new FollowPointRenderer { RelativeSizeAxes = Axes.Both }
+            };
+        });
+
+        [Test]
+        public void TestAddObject()
+        {
+            addObjectsStep(() => new OsuHitObject[] { new HitCircle { Position = new Vector2(100, 100) } });
+
+            assertGroups();
+        }
+
+        [Test]
+        public void TestRemoveObject()
+        {
+            addObjectsStep(() => new OsuHitObject[] { new HitCircle { Position = new Vector2(100, 100) } });
+
+            removeObjectStep(() => getObject(0));
+
+            assertGroups();
+        }
+
+        [Test]
+        public void TestAddMultipleObjects()
+        {
+            addMultipleObjectsStep();
+
+            assertGroups();
+        }
+
+        [Test]
+        public void TestRemoveEndObject()
+        {
+            addMultipleObjectsStep();
+
+            removeObjectStep(() => getObject(4));
+
+            assertGroups();
+        }
+
+        [Test]
+        public void TestRemoveStartObject()
+        {
+            addMultipleObjectsStep();
+
+            removeObjectStep(() => getObject(0));
+
+            assertGroups();
+        }
+
+        [Test]
+        public void TestRemoveMiddleObject()
+        {
+            addMultipleObjectsStep();
+
+            removeObjectStep(() => getObject(2));
+
+            assertGroups();
+        }
+
+        [Test]
+        public void TestMoveObject()
+        {
+            addMultipleObjectsStep();
+
+            AddStep("move hitobject", () => getObject(2).HitObject.Position = new Vector2(300, 100));
+
+            assertGroups();
+        }
+
+        [TestCase(0, 0)] // Start -> Start
+        [TestCase(0, 2)] // Start -> Middle
+        [TestCase(0, 5)] // Start -> End
+        [TestCase(2, 0)] // Middle -> Start
+        [TestCase(1, 3)] // Middle -> Middle (forwards)
+        [TestCase(3, 1)] // Middle -> Middle (backwards)
+        [TestCase(4, 0)] // End -> Start
+        [TestCase(4, 2)] // End -> Middle
+        [TestCase(4, 4)] // End -> End
+        public void TestReorderObjects(int startIndex, int endIndex)
+        {
+            addMultipleObjectsStep();
+
+            reorderObjectStep(startIndex, endIndex);
+
+            assertGroups();
+        }
+
+        private void addMultipleObjectsStep() => addObjectsStep(() => new OsuHitObject[]
+        {
+            new HitCircle { Position = new Vector2(100, 100) },
+            new HitCircle { Position = new Vector2(200, 200) },
+            new HitCircle { Position = new Vector2(300, 300) },
+            new HitCircle { Position = new Vector2(400, 400) },
+            new HitCircle { Position = new Vector2(500, 500) },
+        });
+
+        private void addObjectsStep(Func<OsuHitObject[]> ctorFunc)
+        {
+            AddStep("add hitobjects", () =>
+            {
+                var objects = ctorFunc();
+
+                for (int i = 0; i < objects.Length; i++)
+                {
+                    objects[i].StartTime = Time.Current + 1000 + 500 * (i + 1);
+                    objects[i].ApplyDefaults(new ControlPointInfo(), new BeatmapDifficulty());
+
+                    DrawableOsuHitObject drawableObject = null;
+
+                    switch (objects[i])
+                    {
+                        case HitCircle circle:
+                            drawableObject = new DrawableHitCircle(circle);
+                            break;
+
+                        case Slider slider:
+                            drawableObject = new DrawableSlider(slider);
+                            break;
+
+                        case Spinner spinner:
+                            drawableObject = new DrawableSpinner(spinner);
+                            break;
+                    }
+
+                    hitObjectContainer.Add(drawableObject);
+                    followPointRenderer.AddFollowPoints(drawableObject);
+                }
+            });
+        }
+
+        private void removeObjectStep(Func<DrawableOsuHitObject> getFunc)
+        {
+            AddStep("remove hitobject", () =>
+            {
+                var drawableObject = getFunc?.Invoke();
+
+                hitObjectContainer.Remove(drawableObject);
+                followPointRenderer.RemoveFollowPoints(drawableObject);
+            });
+        }
+
+        private void reorderObjectStep(int startIndex, int endIndex)
+        {
+            AddStep($"move object {startIndex} to {endIndex}", () =>
+            {
+                DrawableOsuHitObject toReorder = getObject(startIndex);
+
+                double targetTime;
+                if (endIndex < hitObjectContainer.Count)
+                    targetTime = getObject(endIndex).HitObject.StartTime - 1;
+                else
+                    targetTime = getObject(hitObjectContainer.Count - 1).HitObject.StartTime + 1;
+
+                hitObjectContainer.Remove(toReorder);
+                toReorder.HitObject.StartTime = targetTime;
+                hitObjectContainer.Add(toReorder);
+            });
+        }
+
+        private void assertGroups()
+        {
+            AddAssert("has correct group count", () => followPointRenderer.Connections.Count == hitObjectContainer.Count);
+            AddAssert("group endpoints are correct", () =>
+            {
+                for (int i = 0; i < hitObjectContainer.Count; i++)
+                {
+                    DrawableOsuHitObject expectedStart = getObject(i);
+                    DrawableOsuHitObject expectedEnd = i < hitObjectContainer.Count - 1 ? getObject(i + 1) : null;
+
+                    if (getGroup(i).Start != expectedStart)
+                        throw new AssertionException($"Object {i} expected to be the start of group {i}.");
+
+                    if (getGroup(i).End != expectedEnd)
+                        throw new AssertionException($"Object {(expectedEnd == null ? "null" : i.ToString())} expected to be the end of group {i}.");
+                }
+
+                return true;
+            });
+        }
+
+        private DrawableOsuHitObject getObject(int index) => hitObjectContainer[index];
+
+        private FollowPointConnection getGroup(int index) => followPointRenderer.Connections[index];
+
+        private class TestHitObjectContainer : Container<DrawableOsuHitObject>
+        {
+            protected override int Compare(Drawable x, Drawable y)
+            {
+                var osuX = (DrawableOsuHitObject)x;
+                var osuY = (DrawableOsuHitObject)y;
+
+                int compare = osuX.HitObject.StartTime.CompareTo(osuY.HitObject.StartTime);
+
+                if (compare == 0)
+                    return base.Compare(x, y);
+
+                return compare;
+            }
+        }
+    }
+}

osu.Game.Rulesets.Osu.Tests/TestSceneOsuDistanceSnapGrid.cs

@@ -42,11 +42,19 @@ namespace osu.Game.Rulesets.Osu.Tests
         [Cached(typeof(IDistanceSnapProvider))]
         private readonly SnapProvider snapProvider = new SnapProvider();
 
-        private readonly TestOsuDistanceSnapGrid grid;
+        private TestOsuDistanceSnapGrid grid;
 
         public TestSceneOsuDistanceSnapGrid()
         {
             editorBeatmap = new EditorBeatmap<OsuHitObject>(new OsuBeatmap());
+        }
+
+        [SetUp]
+        public void Setup() => Schedule(() =>
+        {
+            editorBeatmap.BeatmapInfo.BaseDifficulty.SliderMultiplier = 1;
+            editorBeatmap.ControlPointInfo.Clear();
+            editorBeatmap.ControlPointInfo.Add(0, new TimingControlPoint { BeatLength = beat_length });
 
             Children = new Drawable[]
             {
@@ -58,14 +66,6 @@ namespace osu.Game.Rulesets.Osu.Tests
                 grid = new TestOsuDistanceSnapGrid(new HitCircle { Position = grid_position }),
                 new SnappingCursorContainer { GetSnapPosition = v => grid.GetSnappedPosition(grid.ToLocalSpace(v)).position }
             };
-        }
-
-        [SetUp]
-        public void Setup() => Schedule(() =>
-        {
-            editorBeatmap.BeatmapInfo.BaseDifficulty.SliderMultiplier = 1;
-            editorBeatmap.ControlPointInfo.Clear();
-            editorBeatmap.ControlPointInfo.Add(0, new TimingControlPoint { BeatLength = beat_length });
         });
 
         [TestCase(1)]
@@ -102,6 +102,27 @@ namespace osu.Game.Rulesets.Osu.Tests
             assertSnappedDistance((float)beat_length * 2);
         }
 
+        [Test]
+        public void TestLimitedDistance()
+        {
+            AddStep("create limited grid", () =>
+            {
+                Children = new Drawable[]
+                {
+                    new Box
+                    {
+                        RelativeSizeAxes = Axes.Both,
+                        Colour = Color4.SlateGray
+                    },
+                    grid = new TestOsuDistanceSnapGrid(new HitCircle { Position = grid_position }, new HitCircle { StartTime = 200 }),
+                    new SnappingCursorContainer { GetSnapPosition = v => grid.GetSnappedPosition(grid.ToLocalSpace(v)).position }
+                };
+            });
+
+            AddStep("move mouse outside grid", () => InputManager.MoveMouseTo(grid.ToScreenSpace(grid_position + new Vector2((float)beat_length, 0) * 3f)));
+            assertSnappedDistance((float)beat_length * 2);
+        }
+
         private void assertSnappedDistance(float expectedDistance) => AddAssert($"snap distance = {expectedDistance}", () =>
         {
             Vector2 snappedPosition = grid.GetSnappedPosition(grid.ToLocalSpace(InputManager.CurrentState.Mouse.Position)).position;
@@ -152,8 +173,8 @@ namespace osu.Game.Rulesets.Osu.Tests
         {
             public new float DistanceSpacing => base.DistanceSpacing;
 
-            public TestOsuDistanceSnapGrid(OsuHitObject hitObject)
+            public TestOsuDistanceSnapGrid(OsuHitObject hitObject, OsuHitObject nextHitObject = null)
-                : base(hitObject)
+                : base(hitObject, nextHitObject)
             {
             }
         }
@@ -164,9 +185,9 @@ namespace osu.Game.Rulesets.Osu.Tests
 
             public float GetBeatSnapDistanceAt(double referenceTime) => (float)beat_length;
 
-            public float DurationToDistance(double referenceTime, double duration) => 0;
+            public float DurationToDistance(double referenceTime, double duration) => (float)duration;
 
-            public double DistanceToDuration(double referenceTime, float distance) => 0;
+            public double DistanceToDuration(double referenceTime, float distance) => distance;
 
             public double GetSnappedDurationFromDistance(double referenceTime, float distance) => 0;
 

osu.Game.Rulesets.Osu.Tests/TestSceneSliderSelectionBlueprint.cs

@@ -16,6 +16,7 @@ using osu.Game.Rulesets.Osu.Objects;
 using osu.Game.Rulesets.Osu.Objects.Drawables;
 using osu.Game.Tests.Visual;
 using osuTK;
+using osuTK.Input;
 
 namespace osu.Game.Rulesets.Osu.Tests
 {
@@ -85,6 +86,93 @@ namespace osu.Game.Rulesets.Osu.Tests
             checkPositions();
         }
 
+        [Test]
+        public void TestSingleControlPointSelection()
+        {
+            moveMouseToControlPoint(0);
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            checkControlPointSelected(0, true);
+            checkControlPointSelected(1, false);
+        }
+
+        [Test]
+        public void TestSingleControlPointDeselectionViaOtherControlPoint()
+        {
+            moveMouseToControlPoint(0);
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+
+            moveMouseToControlPoint(1);
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            checkControlPointSelected(0, false);
+            checkControlPointSelected(1, true);
+        }
+
+        [Test]
+        public void TestSingleControlPointDeselectionViaClickOutside()
+        {
+            moveMouseToControlPoint(0);
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+
+            AddStep("move mouse outside control point", () => InputManager.MoveMouseTo(drawableObject));
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            checkControlPointSelected(0, false);
+            checkControlPointSelected(1, false);
+        }
+
+        [Test]
+        public void TestMultipleControlPointSelection()
+        {
+            moveMouseToControlPoint(0);
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            moveMouseToControlPoint(1);
+            AddStep("ctrl + click", () =>
+            {
+                InputManager.PressKey(Key.ControlLeft);
+                InputManager.Click(MouseButton.Left);
+                InputManager.ReleaseKey(Key.ControlLeft);
+            });
+            checkControlPointSelected(0, true);
+            checkControlPointSelected(1, true);
+        }
+
+        [Test]
+        public void TestMultipleControlPointDeselectionViaOtherControlPoint()
+        {
+            moveMouseToControlPoint(0);
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            moveMouseToControlPoint(1);
+            AddStep("ctrl + click", () =>
+            {
+                InputManager.PressKey(Key.ControlLeft);
+                InputManager.Click(MouseButton.Left);
+                InputManager.ReleaseKey(Key.ControlLeft);
+            });
+
+            moveMouseToControlPoint(2);
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            checkControlPointSelected(0, false);
+            checkControlPointSelected(1, false);
+        }
+
+        [Test]
+        public void TestMultipleControlPointDeselectionViaClickOutside()
+        {
+            moveMouseToControlPoint(0);
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            moveMouseToControlPoint(1);
+            AddStep("ctrl + click", () =>
+            {
+                InputManager.PressKey(Key.ControlLeft);
+                InputManager.Click(MouseButton.Left);
+                InputManager.ReleaseKey(Key.ControlLeft);
+            });
+
+            AddStep("move mouse outside control point", () => InputManager.MoveMouseTo(drawableObject));
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            checkControlPointSelected(0, false);
+            checkControlPointSelected(1, false);
+        }
+
         private void moveHitObject()
         {
             AddStep("move hitobject", () =>
@@ -104,11 +192,24 @@ namespace osu.Game.Rulesets.Osu.Tests
                 () => Precision.AlmostEquals(blueprint.TailBlueprint.CirclePiece.ScreenSpaceDrawQuad.Centre, drawableObject.TailCircle.ScreenSpaceDrawQuad.Centre));
         }
 
+        private void moveMouseToControlPoint(int index)
+        {
+            AddStep($"move mouse to control point {index}", () =>
+            {
+                Vector2 position = slider.Position + slider.Path.ControlPoints[index];
+                InputManager.MoveMouseTo(drawableObject.Parent.ToScreenSpace(position));
+            });
+        }
+
+        private void checkControlPointSelected(int index, bool selected)
+            => AddAssert($"control point {index} {(selected ? "selected" : "not selected")}", () => blueprint.ControlPointVisualiser.Pieces[index].IsSelected.Value == selected);
+
         private class TestSliderBlueprint : SliderSelectionBlueprint
         {
             public new SliderBodyPiece BodyPiece => base.BodyPiece;
             public new TestSliderCircleBlueprint HeadBlueprint => (TestSliderCircleBlueprint)base.HeadBlueprint;
             public new TestSliderCircleBlueprint TailBlueprint => (TestSliderCircleBlueprint)base.TailBlueprint;
+            public new PathControlPointVisualiser ControlPointVisualiser => base.ControlPointVisualiser;
 
             public TestSliderBlueprint(DrawableSlider slider)
                 : base(slider)

osu.Game.Rulesets.Osu.Tests/osu.Game.Rulesets.Osu.Tests.csproj

@@ -2,7 +2,7 @@
   <Import Project="..\osu.TestProject.props" />
   <ItemGroup Label="Package References">
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.3.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
     <PackageReference Update="Microsoft.EntityFrameworkCore.Sqlite" Version="2.1.4" />

osu.Game.Rulesets.Osu/Edit/Blueprints/Sliders/Components/PathControlPointPiece.cs

@@ -3,26 +3,35 @@
 
 using System;
 using osu.Framework.Allocation;
+using osu.Framework.Bindables;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Lines;
 using osu.Framework.Graphics.Shapes;
 using osu.Framework.Input.Events;
 using osu.Game.Graphics;
+using osu.Game.Rulesets.Edit;
 using osu.Game.Rulesets.Osu.Objects;
 using osuTK;
+using osuTK.Graphics;
 
 namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders.Components
 {
     public class PathControlPointPiece : BlueprintPiece<Slider>
     {
+        public Action<int> RequestSelection;
         public Action<Vector2[]> ControlPointsChanged;
 
-        private readonly Slider slider;
+        public readonly BindableBool IsSelected = new BindableBool();
-        private readonly int index;
+        public readonly int Index;
 
+        private readonly Slider slider;
         private readonly Path path;
-        private readonly CircularContainer marker;
+        private readonly Container marker;
+        private readonly Drawable markerRing;
+
+        [Resolved(CanBeNull = true)]
+        private IDistanceSnapProvider snapProvider { get; set; }
 
         [Resolved]
         private OsuColour colours { get; set; }
@@ -30,7 +39,7 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders.Components
         public PathControlPointPiece(Slider slider, int index)
         {
             this.slider = slider;
-            this.index = index;
+            Index = index;
 
             Origin = Anchor.Centre;
             AutoSizeAxes = Axes.Both;
@@ -42,13 +51,36 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders.Components
                     Anchor = Anchor.Centre,
                     PathRadius = 1
                 },
-                marker = new CircularContainer
+                marker = new Container
                 {
                     Anchor = Anchor.Centre,
                     Origin = Anchor.Centre,
-                    Size = new Vector2(10),
+                    AutoSizeAxes = Axes.Both,
-                    Masking = true,
+                    Children = new[]
-                    Child = new Box { RelativeSizeAxes = Axes.Both }
+                    {
+                        new Circle
+                        {
+                            Anchor = Anchor.Centre,
+                            Origin = Anchor.Centre,
+                            Size = new Vector2(10),
+                        },
+                        markerRing = new CircularContainer
+                        {
+                            Anchor = Anchor.Centre,
+                            Origin = Anchor.Centre,
+                            Size = new Vector2(14),
+                            Masking = true,
+                            BorderThickness = 2,
+                            BorderColour = Color4.White,
+                            Alpha = 0,
+                            Child = new Box
+                            {
+                                RelativeSizeAxes = Axes.Both,
+                                Alpha = 0,
+                                AlwaysPresent = true
+                            }
+                        }
+                    }
                 }
             };
         }
@@ -57,46 +89,86 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders.Components
         {
             base.Update();
 
-            Position = slider.StackedPosition + slider.Path.ControlPoints[index];
+            Position = slider.StackedPosition + slider.Path.ControlPoints[Index];
 
-            marker.Colour = isSegmentSeparator ? colours.Red : colours.Yellow;
+            updateMarkerDisplay();
+            updateConnectingPath();
+        }
 
+        /// <summary>
+        /// Updates the state of the circular control point marker.
+        /// </summary>
+        private void updateMarkerDisplay()
+        {
+            markerRing.Alpha = IsSelected.Value ? 1 : 0;
+
+            Color4 colour = isSegmentSeparator ? colours.Red : colours.Yellow;
+            if (IsHovered || IsSelected.Value)
+                colour = Color4.White;
+            marker.Colour = colour;
+        }
+
+        /// <summary>
+        /// Updates the path connecting this control point to the previous one.
+        /// </summary>
+        private void updateConnectingPath()
+        {
             path.ClearVertices();
 
-            if (index != slider.Path.ControlPoints.Length - 1)
+            if (Index != slider.Path.ControlPoints.Length - 1)
             {
                 path.AddVertex(Vector2.Zero);
-                path.AddVertex(slider.Path.ControlPoints[index + 1] - slider.Path.ControlPoints[index]);
+                path.AddVertex(slider.Path.ControlPoints[Index + 1] - slider.Path.ControlPoints[Index]);
             }
 
             path.OriginPosition = path.PositionInBoundingBox(Vector2.Zero);
         }
 
+        // The connecting path is excluded from positional input
         public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => marker.ReceivePositionalInputAt(screenSpacePos);
 
+        protected override bool OnMouseDown(MouseDownEvent e)
+        {
+            if (RequestSelection != null)
+            {
+                RequestSelection.Invoke(Index);
+                return true;
+            }
+
+            return false;
+        }
+
+        protected override bool OnMouseUp(MouseUpEvent e) => RequestSelection != null;
+
+        protected override bool OnClick(ClickEvent e) => RequestSelection != null;
+
         protected override bool OnDragStart(DragStartEvent e) => true;
 
         protected override bool OnDrag(DragEvent e)
         {
             var newControlPoints = slider.Path.ControlPoints.ToArray();
 
-            if (index == 0)
+            if (Index == 0)
             {
-                // Special handling for the head - only the position of the slider changes
+                // Special handling for the head control point - the position of the slider changes which means the snapped position and time have to be taken into account
-                slider.Position += e.Delta;
+                (Vector2 snappedPosition, double snappedTime) = snapProvider?.GetSnappedPosition(e.MousePosition, slider.StartTime) ?? (e.MousePosition, slider.StartTime);
+                Vector2 movementDelta = snappedPosition - slider.Position;
+
+                slider.Position += movementDelta;
+                slider.StartTime = snappedTime;
 
                 // Since control points are relative to the position of the slider, they all need to be offset backwards by the delta
                 for (int i = 1; i < newControlPoints.Length; i++)
-                    newControlPoints[i] -= e.Delta;
+                    newControlPoints[i] -= movementDelta;
             }
             else
-                newControlPoints[index] += e.Delta;
+                newControlPoints[Index] += e.Delta;
 
             if (isSegmentSeparatorWithNext)
-                newControlPoints[index + 1] = newControlPoints[index];
+                newControlPoints[Index + 1] = newControlPoints[Index];
 
             if (isSegmentSeparatorWithPrevious)
-                newControlPoints[index - 1] = newControlPoints[index];
+                newControlPoints[Index - 1] = newControlPoints[Index];
 
             ControlPointsChanged?.Invoke(newControlPoints);
 
@@ -107,8 +179,8 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders.Components
 
         private bool isSegmentSeparator => isSegmentSeparatorWithNext || isSegmentSeparatorWithPrevious;
 
-        private bool isSegmentSeparatorWithNext => index < slider.Path.ControlPoints.Length - 1 && slider.Path.ControlPoints[index + 1] == slider.Path.ControlPoints[index];
+        private bool isSegmentSeparatorWithNext => Index < slider.Path.ControlPoints.Length - 1 && slider.Path.ControlPoints[Index + 1] == slider.Path.ControlPoints[Index];
 
-        private bool isSegmentSeparatorWithPrevious => index > 0 && slider.Path.ControlPoints[index - 1] == slider.Path.ControlPoints[index];
+        private bool isSegmentSeparatorWithPrevious => Index > 0 && slider.Path.ControlPoints[Index - 1] == slider.Path.ControlPoints[Index];
     }
 }

osu.Game.Rulesets.Osu/Edit/Blueprints/Sliders/Components/PathControlPointVisualiser.cs

@@ -2,36 +2,132 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System;
+using System.Collections.Generic;
+using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
+using osu.Framework.Input;
+using osu.Framework.Input.Bindings;
+using osu.Framework.Input.Events;
 using osu.Game.Rulesets.Osu.Objects;
+using osu.Game.Screens.Edit.Compose;
 using osuTK;
 
 namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders.Components
 {
-    public class PathControlPointVisualiser : CompositeDrawable
+    public class PathControlPointVisualiser : CompositeDrawable, IKeyBindingHandler<PlatformAction>
     {
         public Action<Vector2[]> ControlPointsChanged;
 
+        internal readonly Container<PathControlPointPiece> Pieces;
         private readonly Slider slider;
+        private readonly bool allowSelection;
 
-        private readonly Container<PathControlPointPiece> pieces;
+        private InputManager inputManager;
 
-        public PathControlPointVisualiser(Slider slider)
+        [Resolved(CanBeNull = true)]
+        private IPlacementHandler placementHandler { get; set; }
+
+        public PathControlPointVisualiser(Slider slider, bool allowSelection)
         {
             this.slider = slider;
+            this.allowSelection = allowSelection;
 
-            InternalChild = pieces = new Container<PathControlPointPiece> { RelativeSizeAxes = Axes.Both };
+            RelativeSizeAxes = Axes.Both;
+
+            InternalChild = Pieces = new Container<PathControlPointPiece> { RelativeSizeAxes = Axes.Both };
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            inputManager = GetContainingInputManager();
         }
 
         protected override void Update()
         {
             base.Update();
 
-            while (slider.Path.ControlPoints.Length > pieces.Count)
+            while (slider.Path.ControlPoints.Length > Pieces.Count)
-                pieces.Add(new PathControlPointPiece(slider, pieces.Count) { ControlPointsChanged = c => ControlPointsChanged?.Invoke(c) });
+            {
-            while (slider.Path.ControlPoints.Length < pieces.Count)
+                var piece = new PathControlPointPiece(slider, Pieces.Count)
-                pieces.Remove(pieces[pieces.Count - 1]);
+                {
+                    ControlPointsChanged = c => ControlPointsChanged?.Invoke(c),
+                };
+
+                if (allowSelection)
+                    piece.RequestSelection = selectPiece;
+
+                Pieces.Add(piece);
+            }
+
+            while (slider.Path.ControlPoints.Length < Pieces.Count)
+                Pieces.Remove(Pieces[Pieces.Count - 1]);
         }
+
+        protected override bool OnClick(ClickEvent e)
+        {
+            foreach (var piece in Pieces)
+                piece.IsSelected.Value = false;
+            return false;
+        }
+
+        private void selectPiece(int index)
+        {
+            if (inputManager.CurrentState.Keyboard.ControlPressed)
+                Pieces[index].IsSelected.Toggle();
+            else
+            {
+                foreach (var piece in Pieces)
+                    piece.IsSelected.Value = piece.Index == index;
+            }
+        }
+
+        public bool OnPressed(PlatformAction action)
+        {
+            switch (action.ActionMethod)
+            {
+                case PlatformActionMethod.Delete:
+                    var newControlPoints = new List<Vector2>();
+
+                    foreach (var piece in Pieces)
+                    {
+                        if (!piece.IsSelected.Value)
+                            newControlPoints.Add(slider.Path.ControlPoints[piece.Index]);
+                    }
+
+                    // Ensure that there are any points to be deleted
+                    if (newControlPoints.Count == slider.Path.ControlPoints.Length)
+                        return false;
+
+                    // If there are 0 remaining control points, treat the slider as being deleted
+                    if (newControlPoints.Count == 0)
+                    {
+                        placementHandler?.Delete(slider);
+                        return true;
+                    }
+
+                    // Make control points relative
+                    Vector2 first = newControlPoints[0];
+                    for (int i = 0; i < newControlPoints.Count; i++)
+                        newControlPoints[i] = newControlPoints[i] - first;
+
+                    // The slider's position defines the position of the first control point, and all further control points are relative to that point
+                    slider.Position = slider.Position + first;
+
+                    // Since pieces are re-used, they will not point to the deleted control points while remaining selected
+                    foreach (var piece in Pieces)
+                        piece.IsSelected.Value = false;
+
+                    ControlPointsChanged?.Invoke(newControlPoints.ToArray());
+
+                    return true;
+            }
+
+            return false;
+        }
+
+        public bool OnReleased(PlatformAction action) => action.ActionMethod == PlatformActionMethod.Delete;
     }
 }

osu.Game.Rulesets.Osu/Edit/Blueprints/Sliders/Components/SliderBodyPiece.cs

@@ -43,5 +43,7 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders.Components
             Size = body.Size;
             OriginPosition = body.PathOffset;
         }
+
+        public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => body.ReceivePositionalInputAt(screenSpacePos);
     }
 }

osu.Game.Rulesets.Osu/Edit/Blueprints/Sliders/SliderPlacementBlueprint.cs

@@ -51,7 +51,7 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders
                 bodyPiece = new SliderBodyPiece(),
                 headCirclePiece = new HitCirclePiece(),
                 tailCirclePiece = new HitCirclePiece(),
-                new PathControlPointVisualiser(HitObject) { ControlPointsChanged = _ => updateSlider() },
+                new PathControlPointVisualiser(HitObject, false) { ControlPointsChanged = _ => updateSlider() },
             };
 
             setState(PlacementState.Initial);

osu.Game.Rulesets.Osu/Edit/Blueprints/Sliders/SliderSelectionBlueprint.cs

@@ -18,6 +18,7 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders
         protected readonly SliderBodyPiece BodyPiece;
         protected readonly SliderCircleSelectionBlueprint HeadBlueprint;
         protected readonly SliderCircleSelectionBlueprint TailBlueprint;
+        protected readonly PathControlPointVisualiser ControlPointVisualiser;
 
         [Resolved(CanBeNull = true)]
         private HitObjectComposer composer { get; set; }
@@ -32,7 +33,7 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders
                 BodyPiece = new SliderBodyPiece(),
                 HeadBlueprint = CreateCircleSelectionBlueprint(slider, SliderPosition.Start),
                 TailBlueprint = CreateCircleSelectionBlueprint(slider, SliderPosition.End),
-                new PathControlPointVisualiser(sliderObject) { ControlPointsChanged = onNewControlPoints },
+                ControlPointVisualiser = new PathControlPointVisualiser(sliderObject, true) { ControlPointsChanged = onNewControlPoints },
             };
         }
 
@@ -49,6 +50,8 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders
             var snappedDistance = composer?.GetSnappedDistanceFromDistance(HitObject.StartTime, (float)unsnappedPath.Distance) ?? (float)unsnappedPath.Distance;
 
             HitObject.Path = new SliderPath(unsnappedPath.Type, controlPoints, snappedDistance);
+
+            UpdateHitObject();
         }
 
         public override Vector2 SelectionPoint => HeadBlueprint.SelectionPoint;

osu.Game.Rulesets.Osu/Edit/OsuDistanceSnapGrid.cs

@@ -8,8 +8,8 @@ namespace osu.Game.Rulesets.Osu.Edit
 {
     public class OsuDistanceSnapGrid : CircularDistanceSnapGrid
     {
-        public OsuDistanceSnapGrid(OsuHitObject hitObject)
+        public OsuDistanceSnapGrid(OsuHitObject hitObject, OsuHitObject nextHitObject)
-            : base(hitObject, hitObject.StackedEndPosition)
+            : base(hitObject, nextHitObject, hitObject.StackedEndPosition)
         {
             Masking = true;
         }

osu.Game.Rulesets.Osu/Edit/OsuHitObjectComposer.cs

@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using osu.Game.Beatmaps;
@@ -60,25 +61,40 @@ namespace osu.Game.Rulesets.Osu.Edit
             var objects = selectedHitObjects.ToList();
 
             if (objects.Count == 0)
+                return createGrid(h => h.StartTime <= EditorClock.CurrentTime);
+
+            double minTime = objects.Min(h => h.StartTime);
+            return createGrid(h => h.StartTime < minTime, objects.Count + 1);
+        }
+
+        /// <summary>
+        /// Creates a grid from the last <see cref="HitObject"/> matching a predicate to a target <see cref="HitObject"/>.
+        /// </summary>
+        /// <param name="sourceSelector">A predicate that matches <see cref="HitObject"/>s where the grid can start from.
+        /// Only the last <see cref="HitObject"/> matching the predicate is used.</param>
+        /// <param name="targetOffset">An offset from the <see cref="HitObject"/> selected via <paramref name="sourceSelector"/> at which the grid should stop.</param>
+        /// <returns>The <see cref="OsuDistanceSnapGrid"/> from a selected <see cref="HitObject"/> to a target <see cref="HitObject"/>.</returns>
+        private OsuDistanceSnapGrid createGrid(Func<HitObject, bool> sourceSelector, int targetOffset = 1)
+        {
+            if (targetOffset < 1) throw new ArgumentOutOfRangeException(nameof(targetOffset));
+
+            int sourceIndex = -1;
+
+            for (int i = 0; i < EditorBeatmap.HitObjects.Count; i++)
             {
-                var lastObject = EditorBeatmap.HitObjects.LastOrDefault(h => h.StartTime <= EditorClock.CurrentTime);
+                if (!sourceSelector(EditorBeatmap.HitObjects[i]))
+                    break;
 
-                if (lastObject == null)
+                sourceIndex = i;
-                    return null;
-
-                return new OsuDistanceSnapGrid(lastObject);
             }
-            else
-            {
-                double minTime = objects.Min(h => h.StartTime);
 
-                var lastObject = EditorBeatmap.HitObjects.LastOrDefault(h => h.StartTime < minTime);
+            if (sourceIndex == -1)
+                return null;
 
-                if (lastObject == null)
+            OsuHitObject sourceObject = EditorBeatmap.HitObjects[sourceIndex];
-                    return null;
+            OsuHitObject targetObject = sourceIndex + targetOffset < EditorBeatmap.HitObjects.Count ? EditorBeatmap.HitObjects[sourceIndex + targetOffset] : null;
 
-                return new OsuDistanceSnapGrid(lastObject);
+            return new OsuDistanceSnapGrid(sourceObject, targetObject);
-            }
         }
     }
 }

osu.Game.Rulesets.Osu/Edit/OsuSelectionHandler.cs

@@ -4,13 +4,34 @@
 using System.Linq;
 using osu.Game.Rulesets.Osu.Objects;
 using osu.Game.Screens.Edit.Compose.Components;
+using osuTK;
 
 namespace osu.Game.Rulesets.Osu.Edit
 {
     public class OsuSelectionHandler : SelectionHandler
     {
-        public override void HandleMovement(MoveSelectionEvent moveEvent)
+        public override bool HandleMovement(MoveSelectionEvent moveEvent)
         {
+            Vector2 minPosition = new Vector2(float.MaxValue, float.MaxValue);
+            Vector2 maxPosition = new Vector2(float.MinValue, float.MinValue);
+
+            // Go through all hitobjects to make sure they would remain in the bounds of the editor after movement, before any movement is attempted
+            foreach (var h in SelectedHitObjects.OfType<OsuHitObject>())
+            {
+                if (h is Spinner)
+                {
+                    // Spinners don't support position adjustments
+                    continue;
+                }
+
+                // Stacking is not considered
+                minPosition = Vector2.ComponentMin(minPosition, Vector2.ComponentMin(h.EndPosition + moveEvent.InstantDelta, h.Position + moveEvent.InstantDelta));
+                maxPosition = Vector2.ComponentMax(maxPosition, Vector2.ComponentMax(h.EndPosition + moveEvent.InstantDelta, h.Position + moveEvent.InstantDelta));
+            }
+
+            if (minPosition.X < 0 || minPosition.Y < 0 || maxPosition.X > DrawWidth || maxPosition.Y > DrawHeight)
+                return false;
+
             foreach (var h in SelectedHitObjects.OfType<OsuHitObject>())
             {
                 if (h is Spinner)
@@ -22,7 +43,7 @@ namespace osu.Game.Rulesets.Osu.Edit
                 h.Position += moveEvent.InstantDelta;
             }
 
-            base.HandleMovement(moveEvent);
+            return true;
         }
     }
 }

osu.Game.Rulesets.Osu/Objects/Drawables/Connections/ConnectionRenderer.cs

@@ -1,21 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-using osu.Framework.Graphics.Containers;
-using osu.Game.Rulesets.Objects;
-using System.Collections.Generic;
-
-namespace osu.Game.Rulesets.Osu.Objects.Drawables.Connections
-{
-    /// <summary>
-    /// Connects hit objects visually, for example with follow points.
-    /// </summary>
-    public abstract class ConnectionRenderer<T> : LifetimeManagementContainer
-        where T : HitObject
-    {
-        /// <summary>
-        /// Hit objects to create connections for
-        /// </summary>
-        public abstract IEnumerable<T> HitObjects { get; set; }
-    }
-}

osu.Game.Rulesets.Osu/Objects/Drawables/Connections/FollowPoint.cs

@@ -12,6 +12,9 @@ using osu.Game.Skinning;
 
 namespace osu.Game.Rulesets.Osu.Objects.Drawables.Connections
 {
+    /// <summary>
+    /// A single follow point positioned between two adjacent <see cref="DrawableOsuHitObject"/>s.
+    /// </summary>
     public class FollowPoint : Container
     {
         private const float width = 8;

osu.Game.Rulesets.Osu/Objects/Drawables/Connections/FollowPointConnection.cs

@@ -0,0 +1,140 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System;
+using JetBrains.Annotations;
+using osu.Framework.Bindables;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Game.Rulesets.Objects.Types;
+using osuTK;
+
+namespace osu.Game.Rulesets.Osu.Objects.Drawables.Connections
+{
+    /// <summary>
+    /// Visualises the <see cref="FollowPoint"/>s between two <see cref="DrawableOsuHitObject"/>s.
+    /// </summary>
+    public class FollowPointConnection : CompositeDrawable
+    {
+        // Todo: These shouldn't be constants
+        private const int spacing = 32;
+        private const double preempt = 800;
+
+        /// <summary>
+        /// The start time of <see cref="Start"/>.
+        /// </summary>
+        public readonly Bindable<double> StartTime = new Bindable<double>();
+
+        /// <summary>
+        /// The <see cref="DrawableOsuHitObject"/> which <see cref="FollowPoint"/>s will exit from.
+        /// </summary>
+        [NotNull]
+        public readonly DrawableOsuHitObject Start;
+
+        /// <summary>
+        /// Creates a new <see cref="FollowPointConnection"/>.
+        /// </summary>
+        /// <param name="start">The <see cref="DrawableOsuHitObject"/> which <see cref="FollowPoint"/>s will exit from.</param>
+        public FollowPointConnection([NotNull] DrawableOsuHitObject start)
+        {
+            Start = start;
+
+            RelativeSizeAxes = Axes.Both;
+
+            StartTime.BindTo(Start.HitObject.StartTimeBindable);
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+            bindEvents(Start);
+        }
+
+        private DrawableOsuHitObject end;
+
+        /// <summary>
+        /// The <see cref="DrawableOsuHitObject"/> which <see cref="FollowPoint"/>s will enter.
+        /// </summary>
+        [CanBeNull]
+        public DrawableOsuHitObject End
+        {
+            get => end;
+            set
+            {
+                end = value;
+
+                if (end != null)
+                    bindEvents(end);
+
+                if (IsLoaded)
+                    scheduleRefresh();
+                else
+                    refresh();
+            }
+        }
+
+        private void bindEvents(DrawableOsuHitObject drawableObject)
+        {
+            drawableObject.HitObject.PositionBindable.BindValueChanged(_ => scheduleRefresh());
+            drawableObject.HitObject.DefaultsApplied += scheduleRefresh;
+        }
+
+        private void scheduleRefresh() => Scheduler.AddOnce(refresh);
+
+        private void refresh()
+        {
+            ClearInternal();
+
+            if (End == null)
+                return;
+
+            OsuHitObject osuStart = Start.HitObject;
+            OsuHitObject osuEnd = End.HitObject;
+
+            if (osuEnd.NewCombo)
+                return;
+
+            if (osuStart is Spinner || osuEnd is Spinner)
+                return;
+
+            Vector2 startPosition = osuStart.EndPosition;
+            Vector2 endPosition = osuEnd.Position;
+            double startTime = (osuStart as IHasEndTime)?.EndTime ?? osuStart.StartTime;
+            double endTime = osuEnd.StartTime;
+
+            Vector2 distanceVector = endPosition - startPosition;
+            int distance = (int)distanceVector.Length;
+            float rotation = (float)(Math.Atan2(distanceVector.Y, distanceVector.X) * (180 / Math.PI));
+            double duration = endTime - startTime;
+
+            for (int d = (int)(spacing * 1.5); d < distance - spacing; d += spacing)
+            {
+                float fraction = (float)d / distance;
+                Vector2 pointStartPosition = startPosition + (fraction - 0.1f) * distanceVector;
+                Vector2 pointEndPosition = startPosition + fraction * distanceVector;
+                double fadeOutTime = startTime + fraction * duration;
+                double fadeInTime = fadeOutTime - preempt;
+
+                FollowPoint fp;
+
+                AddInternal(fp = new FollowPoint
+                {
+                    Position = pointStartPosition,
+                    Rotation = rotation,
+                    Alpha = 0,
+                    Scale = new Vector2(1.5f * osuEnd.Scale),
+                });
+
+                using (fp.BeginAbsoluteSequence(fadeInTime))
+                {
+                    fp.FadeIn(osuEnd.TimeFadeIn);
+                    fp.ScaleTo(osuEnd.Scale, osuEnd.TimeFadeIn, Easing.Out);
+                    fp.MoveTo(pointEndPosition, osuEnd.TimeFadeIn, Easing.Out);
+                    fp.Delay(fadeOutTime - fadeInTime).FadeOut(osuEnd.TimeFadeIn);
+                }
+
+                fp.Expire(true);
+            }
+        }
+    }
+}

osu.Game.Rulesets.Osu/Objects/Drawables/Connections/FollowPointRenderer.cs

@@ -1,121 +1,110 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-using System;
 using System.Collections.Generic;
-using osuTK;
+using System.Linq;
+using osu.Framework.Extensions;
 using osu.Framework.Graphics;
-using osu.Game.Rulesets.Objects.Types;
+using osu.Framework.Graphics.Containers;
 
 namespace osu.Game.Rulesets.Osu.Objects.Drawables.Connections
 {
-    public class FollowPointRenderer : ConnectionRenderer<OsuHitObject>
+    /// <summary>
+    /// Visualises connections between <see cref="DrawableOsuHitObject"/>s.
+    /// </summary>
+    public class FollowPointRenderer : CompositeDrawable
     {
-        private int pointDistance = 32;
-
         /// <summary>
-        /// Determines how much space there is between points.
+        /// All the <see cref="FollowPointConnection"/>s contained by this <see cref="FollowPointRenderer"/>.
         /// </summary>
-        public int PointDistance
+        internal IReadOnlyList<FollowPointConnection> Connections => connections;
-        {
-            get => pointDistance;
-            set
-            {
-                if (pointDistance == value) return;
 
-                pointDistance = value;
+        private readonly List<FollowPointConnection> connections = new List<FollowPointConnection>();
-                update();
-            }
-        }
-
-        private int preEmpt = 800;
-
-        /// <summary>
-        /// Follow points to the next hitobject start appearing for this many milliseconds before an hitobject's end time.
-        /// </summary>
-        public int PreEmpt
-        {
-            get => preEmpt;
-            set
-            {
-                if (preEmpt == value) return;
-
-                preEmpt = value;
-                update();
-            }
-        }
-
-        private IEnumerable<OsuHitObject> hitObjects;
-
-        public override IEnumerable<OsuHitObject> HitObjects
-        {
-            get => hitObjects;
-            set
-            {
-                hitObjects = value;
-                update();
-            }
-        }
 
         public override bool RemoveCompletedTransforms => false;
 
-        private void update()
+        /// <summary>
+        /// Adds the <see cref="FollowPoint"/>s around a <see cref="DrawableOsuHitObject"/>.
+        /// This includes <see cref="FollowPoint"/>s leading into <paramref name="hitObject"/>, and <see cref="FollowPoint"/>s exiting <paramref name="hitObject"/>.
+        /// </summary>
+        /// <param name="hitObject">The <see cref="DrawableOsuHitObject"/> to add <see cref="FollowPoint"/>s for.</param>
+        public void AddFollowPoints(DrawableOsuHitObject hitObject)
+            => addConnection(new FollowPointConnection(hitObject).With(g => g.StartTime.BindValueChanged(_ => onStartTimeChanged(g))));
+
+        /// <summary>
+        /// Removes the <see cref="FollowPoint"/>s around a <see cref="DrawableOsuHitObject"/>.
+        /// This includes <see cref="FollowPoint"/>s leading into <paramref name="hitObject"/>, and <see cref="FollowPoint"/>s exiting <paramref name="hitObject"/>.
+        /// </summary>
+        /// <param name="hitObject">The <see cref="DrawableOsuHitObject"/> to remove <see cref="FollowPoint"/>s for.</param>
+        public void RemoveFollowPoints(DrawableOsuHitObject hitObject) => removeGroup(connections.Single(g => g.Start == hitObject));
+
+        /// <summary>
+        /// Adds a <see cref="FollowPointConnection"/> to this <see cref="FollowPointRenderer"/>.
+        /// </summary>
+        /// <param name="connection">The <see cref="FollowPointConnection"/> to add.</param>
+        /// <returns>The index of <paramref name="connection"/> in <see cref="connections"/>.</returns>
+        private void addConnection(FollowPointConnection connection)
         {
-            ClearInternal();
+            AddInternal(connection);
 
-            if (hitObjects == null)
+            // Groups are sorted by their start time when added such that the index can be used to post-process other surrounding connections
-                return;
+            int index = connections.AddInPlace(connection, Comparer<FollowPointConnection>.Create((g1, g2) => g1.StartTime.Value.CompareTo(g2.StartTime.Value)));
 
-            OsuHitObject prevHitObject = null;
+            if (index < connections.Count - 1)
-
-            foreach (var currHitObject in hitObjects)
             {
-                if (prevHitObject != null && !currHitObject.NewCombo && !(prevHitObject is Spinner) && !(currHitObject is Spinner))
+                // Update the connection's end point to the next connection's start point
-                {
+                //     h1 -> -> -> h2
-                    Vector2 startPosition = prevHitObject.EndPosition;
+                //    connection    nextGroup
-                    Vector2 endPosition = currHitObject.Position;
-                    double startTime = (prevHitObject as IHasEndTime)?.EndTime ?? prevHitObject.StartTime;
-                    double endTime = currHitObject.StartTime;
 
-                    Vector2 distanceVector = endPosition - startPosition;
+                FollowPointConnection nextConnection = connections[index + 1];
-                    int distance = (int)distanceVector.Length;
+                connection.End = nextConnection.Start;
-                    float rotation = (float)(Math.Atan2(distanceVector.Y, distanceVector.X) * (180 / Math.PI));
-                    double duration = endTime - startTime;
-
-                    for (int d = (int)(PointDistance * 1.5); d < distance - PointDistance; d += PointDistance)
-                    {
-                        float fraction = (float)d / distance;
-                        Vector2 pointStartPosition = startPosition + (fraction - 0.1f) * distanceVector;
-                        Vector2 pointEndPosition = startPosition + fraction * distanceVector;
-                        double fadeOutTime = startTime + fraction * duration;
-                        double fadeInTime = fadeOutTime - PreEmpt;
-
-                        FollowPoint fp;
-
-                        AddInternal(fp = new FollowPoint
-                        {
-                            Position = pointStartPosition,
-                            Rotation = rotation,
-                            Alpha = 0,
-                            Scale = new Vector2(1.5f * currHitObject.Scale),
-                        });
-
-                        using (fp.BeginAbsoluteSequence(fadeInTime))
-                        {
-                            fp.FadeIn(currHitObject.TimeFadeIn);
-                            fp.ScaleTo(currHitObject.Scale, currHitObject.TimeFadeIn, Easing.Out);
-
-                            fp.MoveTo(pointEndPosition, currHitObject.TimeFadeIn, Easing.Out);
-
-                            fp.Delay(fadeOutTime - fadeInTime).FadeOut(currHitObject.TimeFadeIn);
-                        }
-
-                        fp.Expire(true);
-                    }
-                }
-
-                prevHitObject = currHitObject;
             }
+            else
+            {
+                // The end point may be non-null during re-ordering
+                connection.End = null;
+            }
+
+            if (index > 0)
+            {
+                // Update the previous connection's end point to the current connection's start point
+                //     h1 -> -> -> h2
+                //  prevGroup    connection
+
+                FollowPointConnection previousConnection = connections[index - 1];
+                previousConnection.End = connection.Start;
+            }
+        }
+
+        /// <summary>
+        /// Removes a <see cref="FollowPointConnection"/> from this <see cref="FollowPointRenderer"/>.
+        /// </summary>
+        /// <param name="connection">The <see cref="FollowPointConnection"/> to remove.</param>
+        /// <returns>Whether <paramref name="connection"/> was removed.</returns>
+        private void removeGroup(FollowPointConnection connection)
+        {
+            RemoveInternal(connection);
+
+            int index = connections.IndexOf(connection);
+
+            if (index > 0)
+            {
+                // Update the previous connection's end point to the next connection's start point
+                //     h1 -> -> -> h2 -> -> -> h3
+                //  prevGroup    connection       nextGroup
+                // The current connection's end point is used since there may not be a next connection
+                FollowPointConnection previousConnection = connections[index - 1];
+                previousConnection.End = connection.End;
+            }
+
+            connections.Remove(connection);
+        }
+
+        private void onStartTimeChanged(FollowPointConnection connection)
+        {
+            // Naive but can be improved if performance becomes an issue
+            removeGroup(connection);
+            addConnection(connection);
         }
     }
 }

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

@@ -37,6 +37,8 @@ namespace osu.Game.Rulesets.Osu.Objects
             {
                 PathBindable.Value = value;
                 endPositionCache.Invalidate();
+
+                updateNestedPositions();
             }
         }
 
@@ -48,14 +50,9 @@ namespace osu.Game.Rulesets.Osu.Objects
             set
             {
                 base.Position = value;
-
                 endPositionCache.Invalidate();
 
-                if (HeadCircle != null)
+                updateNestedPositions();
-                    HeadCircle.Position = value;
-
-                if (TailCircle != null)
-                    TailCircle.Position = EndPosition;
             }
         }
 
@@ -197,6 +194,15 @@ namespace osu.Game.Rulesets.Osu.Objects
             }
         }
 
+        private void updateNestedPositions()
+        {
+            if (HeadCircle != null)
+                HeadCircle.Position = Position;
+
+            if (TailCircle != null)
+                TailCircle.Position = EndPosition;
+        }
+
         private List<HitSampleInfo> getNodeSamples(int nodeIndex) =>
             nodeIndex < NodeSamples.Count ? NodeSamples[nodeIndex] : Samples;
 

osu.Game.Rulesets.Osu/UI/OsuPlayfield.cs

@@ -9,7 +9,6 @@ using osu.Game.Rulesets.Osu.Objects;
 using osu.Game.Rulesets.Osu.Objects.Drawables;
 using osu.Game.Rulesets.Osu.Objects.Drawables.Connections;
 using osu.Game.Rulesets.UI;
-using System.Linq;
 using osu.Game.Rulesets.Judgements;
 using osu.Game.Rulesets.Osu.UI.Cursor;
 using osu.Game.Skinning;
@@ -20,7 +19,7 @@ namespace osu.Game.Rulesets.Osu.UI
     {
         private readonly ApproachCircleProxyContainer approachCircles;
         private readonly JudgementContainer<DrawableOsuJudgement> judgementLayer;
-        private readonly ConnectionRenderer<OsuHitObject> connectionLayer;
+        private readonly FollowPointRenderer followPoints;
 
         public static readonly Vector2 BASE_SIZE = new Vector2(512, 384);
 
@@ -30,7 +29,7 @@ namespace osu.Game.Rulesets.Osu.UI
         {
             InternalChildren = new Drawable[]
             {
-                connectionLayer = new FollowPointRenderer
+                followPoints = new FollowPointRenderer
                 {
                     RelativeSizeAxes = Axes.Both,
                     Depth = 2,
@@ -64,11 +63,18 @@ namespace osu.Game.Rulesets.Osu.UI
             };
 
             base.Add(h);
+
+            followPoints.AddFollowPoints((DrawableOsuHitObject)h);
         }
 
-        public override void PostProcess()
+        public override bool Remove(DrawableHitObject h)
         {
-            connectionLayer.HitObjects = HitObjectContainer.Objects.Select(d => d.HitObject).OfType<OsuHitObject>();
+            bool result = base.Remove(h);
+
+            if (result)
+                followPoints.RemoveFollowPoints((DrawableOsuHitObject)h);
+
+            return result;
         }
 
         private void onNewResult(DrawableHitObject judgedObject, JudgementResult result)

osu.Game.Rulesets.Osu/UI/OsuResumeOverlay.cs

@@ -38,9 +38,10 @@ namespace osu.Game.Rulesets.Osu.UI
             });
         }
 
-        public override void Show()
+        protected override void PopIn()
         {
-            base.Show();
+            base.PopIn();
+
             GameplayCursor.ActiveCursor.Hide();
             cursorScaleContainer.MoveTo(GameplayCursor.ActiveCursor.Position);
             clickToResumeCursor.Appear();
@@ -55,13 +56,13 @@ namespace osu.Game.Rulesets.Osu.UI
             }
         }
 
-        public override void Hide()
+        protected override void PopOut()
         {
+            base.PopOut();
+
             localCursorContainer?.Expire();
             localCursorContainer = null;
-            GameplayCursor.ActiveCursor.Show();
+            GameplayCursor?.ActiveCursor?.Show();
-
-            base.Hide();
         }
 
         protected override bool OnHover(HoverEvent e) => true;

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

@@ -2,7 +2,7 @@
   <Import Project="..\osu.TestProject.props" />
   <ItemGroup Label="Package References">
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.3.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
     <PackageReference Update="Microsoft.EntityFrameworkCore.Sqlite" Version="2.1.4" />

osu.Game.Tests/Visual/Components/TestScenePreviewTrackManager.cs

@@ -34,6 +34,7 @@ namespace osu.Game.Tests.Visual.Components
             PreviewTrack track = null;
 
             AddStep("get track", () => track = getOwnedTrack());
+            AddUntilStep("wait loaded", () => track.IsLoaded);
             AddStep("start", () => track.Start());
             AddAssert("started", () => track.IsRunning);
             AddStep("stop", () => track.Stop());
@@ -52,6 +53,8 @@ namespace osu.Game.Tests.Visual.Components
                 track2 = getOwnedTrack();
             });
 
+            AddUntilStep("wait loaded", () => track1.IsLoaded && track2.IsLoaded);
+
             AddStep("start track 1", () => track1.Start());
             AddStep("start track 2", () => track2.Start());
             AddAssert("track 1 stopped", () => !track1.IsRunning);
@@ -64,6 +67,7 @@ namespace osu.Game.Tests.Visual.Components
             PreviewTrack track = null;
 
             AddStep("get track", () => track = getOwnedTrack());
+            AddUntilStep("wait loaded", () => track.IsLoaded);
             AddStep("start", () => track.Start());
             AddStep("stop by owner", () => trackManager.StopAnyPlaying(this));
             AddAssert("stopped", () => !track.IsRunning);
@@ -76,6 +80,7 @@ namespace osu.Game.Tests.Visual.Components
             PreviewTrack track = null;
 
             AddStep("get track", () => Add(owner = new TestTrackOwner(track = getTrack())));
+            AddUntilStep("wait loaded", () => track.IsLoaded);
             AddStep("start", () => track.Start());
             AddStep("attempt stop", () => trackManager.StopAnyPlaying(this));
             AddAssert("not stopped", () => track.IsRunning);
@@ -89,16 +94,24 @@ namespace osu.Game.Tests.Visual.Components
         {
             var track = getTrack();
 
-            Add(track);
+            LoadComponentAsync(track, Add);
 
             return track;
         }
 
         private class TestTrackOwner : CompositeDrawable, IPreviewTrackOwner
         {
+            private readonly PreviewTrack track;
+
             public TestTrackOwner(PreviewTrack track)
             {
-                AddInternal(track);
+                this.track = track;
+            }
+
+            [BackgroundDependencyLoader]
+            private void load()
+            {
+                LoadComponentAsync(track, AddInternal);
             }
 
             protected override IReadOnlyDependencyContainer CreateChildDependencies(IReadOnlyDependencyContainer parent)

osu.Game.Tests/Visual/Editor/TestSceneDistanceSnapGrid.cs

@@ -32,7 +32,11 @@ namespace osu.Game.Tests.Visual.Editor
         {
             editorBeatmap = new EditorBeatmap<OsuHitObject>(new OsuBeatmap());
             editorBeatmap.ControlPointInfo.Add(0, new TimingControlPoint { BeatLength = beat_length });
+        }
 
+        [SetUp]
+        public void Setup() => Schedule(() =>
+        {
             Children = new Drawable[]
             {
                 new Box
@@ -42,7 +46,7 @@ namespace osu.Game.Tests.Visual.Editor
                 },
                 new TestDistanceSnapGrid(new HitObject(), grid_position)
             };
-        }
+        });
 
         [TestCase(1)]
         [TestCase(2)]
@@ -57,12 +61,29 @@ namespace osu.Game.Tests.Visual.Editor
             AddStep($"set beat divisor = {divisor}", () => BeatDivisor.Value = divisor);
         }
 
+        [Test]
+        public void TestLimitedDistance()
+        {
+            AddStep("create limited grid", () =>
+            {
+                Children = new Drawable[]
+                {
+                    new Box
+                    {
+                        RelativeSizeAxes = Axes.Both,
+                        Colour = Color4.SlateGray
+                    },
+                    new TestDistanceSnapGrid(new HitObject(), grid_position, new HitObject { StartTime = 100 })
+                };
+            });
+        }
+
         private class TestDistanceSnapGrid : DistanceSnapGrid
         {
             public new float DistanceSpacing => base.DistanceSpacing;
 
-            public TestDistanceSnapGrid(HitObject hitObject, Vector2 centrePosition)
+            public TestDistanceSnapGrid(HitObject hitObject, Vector2 centrePosition, HitObject nextHitObject = null)
-                : base(hitObject, centrePosition)
+                : base(hitObject, nextHitObject, centrePosition)
             {
             }
 
@@ -77,7 +98,7 @@ namespace osu.Game.Tests.Visual.Editor
 
                 int beatIndex = 0;
 
-                for (float s = centrePosition.X + DistanceSpacing; s <= DrawWidth; s += DistanceSpacing, beatIndex++)
+                for (float s = centrePosition.X + DistanceSpacing; s <= DrawWidth && beatIndex < MaxIntervals; s += DistanceSpacing, beatIndex++)
                 {
                     AddInternal(new Circle
                     {
@@ -90,7 +111,7 @@ namespace osu.Game.Tests.Visual.Editor
 
                 beatIndex = 0;
 
-                for (float s = centrePosition.X - DistanceSpacing; s >= 0; s -= DistanceSpacing, beatIndex++)
+                for (float s = centrePosition.X - DistanceSpacing; s >= 0 && beatIndex < MaxIntervals; s -= DistanceSpacing, beatIndex++)
                 {
                     AddInternal(new Circle
                     {
@@ -103,7 +124,7 @@ namespace osu.Game.Tests.Visual.Editor
 
                 beatIndex = 0;
 
-                for (float s = centrePosition.Y + DistanceSpacing; s <= DrawHeight; s += DistanceSpacing, beatIndex++)
+                for (float s = centrePosition.Y + DistanceSpacing; s <= DrawHeight && beatIndex < MaxIntervals; s += DistanceSpacing, beatIndex++)
                 {
                     AddInternal(new Circle
                     {
@@ -116,7 +137,7 @@ namespace osu.Game.Tests.Visual.Editor
 
                 beatIndex = 0;
 
-                for (float s = centrePosition.Y - DistanceSpacing; s >= 0; s -= DistanceSpacing, beatIndex++)
+                for (float s = centrePosition.Y - DistanceSpacing; s >= 0 && beatIndex < MaxIntervals; s -= DistanceSpacing, beatIndex++)
                 {
                     AddInternal(new Circle
                     {
@@ -138,9 +159,9 @@ namespace osu.Game.Tests.Visual.Editor
 
             public float GetBeatSnapDistanceAt(double referenceTime) => 10;
 
-            public float DurationToDistance(double referenceTime, double duration) => 0;
+            public float DurationToDistance(double referenceTime, double duration) => (float)duration;
 
-            public double DistanceToDuration(double referenceTime, float distance) => 0;
+            public double DistanceToDuration(double referenceTime, float distance) => distance;
 
             public double GetSnappedDurationFromDistance(double referenceTime, float distance) => 0;
 

osu.Game.Tests/Visual/Editor/TestSceneEditorComposeTimeline.cs

@@ -10,9 +10,9 @@ using osu.Framework.Bindables;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
-using osu.Framework.Graphics.UserInterface;
 using osu.Framework.Timing;
 using osu.Game.Beatmaps;
+using osu.Game.Graphics.UserInterface;
 using osu.Game.Screens.Edit.Compose.Components.Timeline;
 using osuTK;
 using osuTK.Graphics;
@@ -101,7 +101,7 @@ namespace osu.Game.Tests.Visual.Editor
             }
         }
 
-        private class StartStopButton : Button
+        private class StartStopButton : OsuButton
         {
             private IAdjustableClock adjustableClock;
             private bool started;

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

@@ -0,0 +1,35 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System;
+using System.Collections.Generic;
+using NUnit.Framework;
+using osu.Framework.Allocation;
+using osu.Game.Rulesets.Osu;
+using osu.Game.Screens.Edit.Timing;
+
+namespace osu.Game.Tests.Visual.Editor
+{
+    [TestFixture]
+    public class TestSceneTimingScreen : EditorClockTestScene
+    {
+        public override IReadOnlyList<Type> RequiredTypes => new[]
+        {
+            typeof(ControlPointTable),
+            typeof(ControlPointSettings),
+            typeof(Section<>),
+            typeof(TimingSection),
+            typeof(EffectSection),
+            typeof(SampleSection),
+            typeof(DifficultySection),
+            typeof(RowAttribute)
+        };
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            Beatmap.Value = CreateWorkingBeatmap(new OsuRuleset().RulesetInfo);
+            Child = new TimingScreen();
+        }
+    }
+}

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

@@ -69,6 +69,24 @@ namespace osu.Game.Tests.Visual.Gameplay
             confirmClockRunning(true);
         }
 
+        [Test]
+        public void TestPauseWithResumeOverlay()
+        {
+            AddStep("move cursor to center", () => InputManager.MoveMouseTo(Player.ScreenSpaceDrawQuad.Centre));
+            AddUntilStep("wait for hitobjects", () => Player.ScoreProcessor.Health.Value < 1);
+
+            pauseAndConfirm();
+
+            resume();
+            confirmClockRunning(false);
+            confirmPauseOverlayShown(false);
+
+            pauseAndConfirm();
+
+            AddUntilStep("resume overlay is not active", () => Player.DrawableRuleset.ResumeOverlay.State.Value == Visibility.Hidden);
+            confirmPaused();
+        }
+
         [Test]
         public void TestResumeWithResumeOverlaySkipped()
         {
@@ -219,6 +237,7 @@ namespace osu.Game.Tests.Visual.Gameplay
             AddUntilStep("player not exited", () => Player.IsCurrentScreen());
             AddStep("exit", () => Player.Exit());
             confirmExited();
+            confirmNoTrackAdjustments();
         }
 
         private void confirmPaused()
@@ -240,6 +259,11 @@ namespace osu.Game.Tests.Visual.Gameplay
             AddUntilStep("player exited", () => !Player.IsCurrentScreen());
         }
 
+        private void confirmNoTrackAdjustments()
+        {
+            AddAssert("track has no adjustments", () => Beatmap.Value.Track.AggregateFrequency.Value == 1);
+        }
+
         private void restart() => AddStep("restart", () => Player.Restart());
         private void pause() => AddStep("pause", () => Player.Pause());
         private void resume() => AddStep("resume", () => Player.Resume());

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

@@ -7,11 +7,10 @@ using osu.Game.Online;
 using osu.Game.Online.API.Requests.Responses;
 using osu.Game.Rulesets.Osu;
 using osu.Game.Scoring;
-using osu.Game.Screens.Play;
 using osu.Game.Users;
-using osuTK;
 using System;
 using System.Collections.Generic;
+using osu.Game.Screens.Ranking.Pages;
 
 namespace osu.Game.Tests.Visual.Gameplay
 {
@@ -42,7 +41,6 @@ namespace osu.Game.Tests.Visual.Gameplay
                 {
                     Anchor = Anchor.Centre,
                     Origin = Anchor.Centre,
-                    Size = new Vector2(80, 40),
                 };
             });
         }

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

@@ -3,11 +3,16 @@
 
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using NUnit.Framework;
 using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Screens;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Scoring;
 using osu.Game.Scoring;
+using osu.Game.Screens;
 using osu.Game.Screens.Play;
 using osu.Game.Screens.Ranking;
 using osu.Game.Screens.Ranking.Pages;
@@ -22,11 +27,13 @@ namespace osu.Game.Tests.Visual.Gameplay
 
         public override IReadOnlyList<Type> RequiredTypes => new[]
         {
-            typeof(ScoreInfo),
             typeof(Results),
             typeof(ResultsPage),
             typeof(ScoreResultsPage),
-            typeof(LocalLeaderboardPage)
+            typeof(RetryButton),
+            typeof(ReplayDownloadButton),
+            typeof(LocalLeaderboardPage),
+            typeof(TestPlayer)
         };
 
         [BackgroundDependencyLoader]
@@ -42,26 +49,82 @@ namespace osu.Game.Tests.Visual.Gameplay
             var beatmapInfo = beatmaps.QueryBeatmap(b => b.RulesetID == 0);
             if (beatmapInfo != null)
                 Beatmap.Value = beatmaps.GetWorkingBeatmap(beatmapInfo);
+        }
 
-            LoadScreen(new SoloResults(new ScoreInfo
+        private TestSoloResults createResultsScreen() => new TestSoloResults(new ScoreInfo
+        {
+            TotalScore = 2845370,
+            Accuracy = 0.98,
+            MaxCombo = 123,
+            Rank = ScoreRank.A,
+            Date = DateTimeOffset.Now,
+            Statistics = new Dictionary<HitResult, int>
             {
-                TotalScore = 2845370,
+                { HitResult.Great, 50 },
-                Accuracy = 0.98,
+                { HitResult.Good, 20 },
-                MaxCombo = 123,
+                { HitResult.Meh, 50 },
-                Rank = ScoreRank.A,
+                { HitResult.Miss, 1 }
-                Date = DateTimeOffset.Now,
+            },
-                Statistics = new Dictionary<HitResult, int>
+            User = new User
+            {
+                Username = "peppy",
+            }
+        });
+
+        [Test]
+        public void ResultsWithoutPlayer()
+        {
+            TestSoloResults screen = null;
+
+            AddStep("load results", () => Child = new OsuScreenStack(screen = createResultsScreen())
+            {
+                RelativeSizeAxes = Axes.Both
+            });
+            AddUntilStep("wait for loaded", () => screen.IsLoaded);
+            AddAssert("retry overlay not present", () => screen.RetryOverlay == null);
+        }
+
+        [Test]
+        public void ResultsWithPlayer()
+        {
+            TestSoloResults screen = null;
+
+            AddStep("load results", () => Child = new TestResultsContainer(screen = createResultsScreen()));
+            AddUntilStep("wait for loaded", () => screen.IsLoaded);
+            AddAssert("retry overlay present", () => screen.RetryOverlay != null);
+        }
+
+        private class TestResultsContainer : Container
+        {
+            [Cached(typeof(Player))]
+            private readonly Player player = new TestPlayer();
+
+            public TestResultsContainer(IScreen screen)
+            {
+                RelativeSizeAxes = Axes.Both;
+
+                InternalChild = new OsuScreenStack(screen)
                 {
-                    { HitResult.Great, 50 },
+                    RelativeSizeAxes = Axes.Both,
-                    { HitResult.Good, 20 },
+                };
-                    { HitResult.Meh, 50 },
+            }
-                    { HitResult.Miss, 1 }
+        }
-                },
+
-                User = new User
+        private class TestSoloResults : SoloResults
-                {
+        {
-                    Username = "peppy",
+            public HotkeyRetryOverlay RetryOverlay;
-                }
+
-            }));
+            public TestSoloResults(ScoreInfo score)
+                : base(score)
+            {
+            }
+
+            protected override void LoadComplete()
+            {
+                base.LoadComplete();
+
+                RetryOverlay = InternalChildren.OfType<HotkeyRetryOverlay>().SingleOrDefault();
+            }
         }
     }
 }

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

@@ -0,0 +1,102 @@
+// 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.UserInterface;
+using osu.Game.Beatmaps;
+using osu.Game.Overlays.BeatmapSet;
+using osu.Game.Rulesets;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace osu.Game.Tests.Visual.Online
+{
+    public class TestSceneBeatmapRulesetSelector : OsuTestScene
+    {
+        public override IReadOnlyList<Type> RequiredTypes => new[]
+        {
+            typeof(BeatmapRulesetSelector),
+            typeof(BeatmapRulesetTabItem),
+        };
+
+        private readonly TestRulesetSelector selector;
+
+        public TestSceneBeatmapRulesetSelector()
+        {
+            Add(selector = new TestRulesetSelector());
+        }
+
+        [Resolved]
+        private RulesetStore rulesets { get; set; }
+
+        [Test]
+        public void TestMultipleRulesetsBeatmapSet()
+        {
+            var enabledRulesets = rulesets.AvailableRulesets.Skip(1).Take(2);
+
+            AddStep("load multiple rulesets beatmapset", () =>
+            {
+                selector.BeatmapSet = new BeatmapSetInfo
+                {
+                    Beatmaps = enabledRulesets.Select(r => new BeatmapInfo { Ruleset = r }).ToList()
+                };
+            });
+
+            var tabItems = selector.TabContainer.TabItems;
+            AddAssert("other rulesets disabled", () => tabItems.Except(tabItems.Where(t => enabledRulesets.Any(r => r.Equals(t.Value)))).All(t => !t.Enabled.Value));
+            AddAssert("left-most ruleset selected", () => tabItems.First(t => t.Enabled.Value).Active.Value);
+        }
+
+        [Test]
+        public void TestSingleRulesetBeatmapSet()
+        {
+            var enabledRuleset = rulesets.AvailableRulesets.Last();
+
+            AddStep("load single ruleset beatmapset", () =>
+            {
+                selector.BeatmapSet = new BeatmapSetInfo
+                {
+                    Beatmaps = new List<BeatmapInfo>
+                    {
+                        new BeatmapInfo
+                        {
+                            Ruleset = enabledRuleset
+                        }
+                    }
+                };
+            });
+
+            AddAssert("single ruleset selected", () => selector.SelectedTab.Value.Equals(enabledRuleset));
+        }
+
+        [Test]
+        public void TestEmptyBeatmapSet()
+        {
+            AddStep("load empty beatmapset", () => selector.BeatmapSet = new BeatmapSetInfo
+            {
+                Beatmaps = new List<BeatmapInfo>()
+            });
+
+            AddAssert("no ruleset selected", () => selector.SelectedTab == null);
+            AddAssert("all rulesets disabled", () => selector.TabContainer.TabItems.All(t => !t.Enabled.Value));
+        }
+
+        [Test]
+        public void TestNullBeatmapSet()
+        {
+            AddStep("load null beatmapset", () => selector.BeatmapSet = null);
+
+            AddAssert("no ruleset selected", () => selector.SelectedTab == null);
+            AddAssert("all rulesets disabled", () => selector.TabContainer.TabItems.All(t => !t.Enabled.Value));
+        }
+
+        private class TestRulesetSelector : BeatmapRulesetSelector
+        {
+            public new TabItem<RulesetInfo> SelectedTab => base.SelectedTab;
+
+            public new TabFillFlowContainer TabContainer => base.TabContainer;
+        }
+    }
+}

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

@@ -40,24 +40,19 @@ namespace osu.Game.Tests.Visual.Online
             typeof(PreviewButton),
             typeof(SuccessRate),
             typeof(BeatmapAvailability),
+            typeof(BeatmapRulesetSelector),
+            typeof(BeatmapRulesetTabItem),
         };
 
         protected override bool UseOnlineAPI => true;
 
-        private RulesetInfo taikoRuleset;
-        private RulesetInfo maniaRuleset;
-
         public TestSceneBeatmapSetOverlay()
         {
             Add(overlay = new TestBeatmapSetOverlay());
         }
 
-        [BackgroundDependencyLoader]
+        [Resolved]
-        private void load(RulesetStore rulesets)
+        private RulesetStore rulesets { get; set; }
-        {
-            taikoRuleset = rulesets.GetRuleset(1);
-            maniaRuleset = rulesets.GetRuleset(3);
-        }
 
         [Test]
         public void TestLoading()
@@ -111,7 +106,7 @@ namespace osu.Game.Tests.Visual.Online
                             StarDifficulty = 9.99,
                             Version = @"TEST",
                             Length = 456000,
-                            Ruleset = maniaRuleset,
+                            Ruleset = rulesets.GetRuleset(3),
                             BaseDifficulty = new BeatmapDifficulty
                             {
                                 CircleSize = 1,
@@ -189,7 +184,7 @@ namespace osu.Game.Tests.Visual.Online
                             StarDifficulty = 5.67,
                             Version = @"ANOTHER TEST",
                             Length = 123000,
-                            Ruleset = taikoRuleset,
+                            Ruleset = rulesets.GetRuleset(1),
                             BaseDifficulty = new BeatmapDifficulty
                             {
                                 CircleSize = 9,
@@ -217,6 +212,54 @@ namespace osu.Game.Tests.Visual.Online
             downloadAssert(false);
         }
 
+        [Test]
+        public void TestMultipleRulesets()
+        {
+            AddStep("show multiple rulesets beatmap", () =>
+            {
+                var beatmaps = new List<BeatmapInfo>();
+
+                foreach (var ruleset in rulesets.AvailableRulesets.Skip(1))
+                {
+                    beatmaps.Add(new BeatmapInfo
+                    {
+                        Version = ruleset.Name,
+                        Ruleset = ruleset,
+                        BaseDifficulty = new BeatmapDifficulty(),
+                        OnlineInfo = new BeatmapOnlineInfo(),
+                        Metrics = new BeatmapMetrics
+                        {
+                            Fails = Enumerable.Range(1, 100).Select(i => i % 12 - 6).ToArray(),
+                            Retries = Enumerable.Range(-2, 100).Select(i => i % 12 - 6).ToArray(),
+                        },
+                    });
+                }
+
+                overlay.ShowBeatmapSet(new BeatmapSetInfo
+                {
+                    Metadata = new BeatmapMetadata
+                    {
+                        Title = @"multiple rulesets beatmap",
+                        Artist = @"none",
+                        Author = new User
+                        {
+                            Username = "BanchoBot",
+                            Id = 3,
+                        }
+                    },
+                    OnlineInfo = new BeatmapSetOnlineInfo
+                    {
+                        Covers = new BeatmapSetOnlineCovers(),
+                    },
+                    Metrics = new BeatmapSetMetrics { Ratings = Enumerable.Range(0, 11).ToArray() },
+                    Beatmaps = beatmaps
+                });
+            });
+
+            AddAssert("shown beatmaps of current ruleset", () => overlay.Header.Picker.Difficulties.All(b => b.Beatmap.Ruleset.Equals(overlay.Header.RulesetSelector.Current.Value)));
+            AddAssert("left-most beatmap selected", () => overlay.Header.Picker.Difficulties.First().State == BeatmapPicker.DifficultySelectorState.Selected);
+        }
+
         [Test]
         public void TestHide()
         {
@@ -281,12 +324,12 @@ namespace osu.Game.Tests.Visual.Online
 
         private void downloadAssert(bool shown)
         {
-            AddAssert($"is download button {(shown ? "shown" : "hidden")}", () => overlay.DownloadButtonsVisible == shown);
+            AddAssert($"is download button {(shown ? "shown" : "hidden")}", () => overlay.Header.DownloadButtonsVisible == shown);
         }
 
         private class TestBeatmapSetOverlay : BeatmapSetOverlay
         {
-            public bool DownloadButtonsVisible => Header.DownloadButtonsVisible;
+            public new Header Header => base.Header;
         }
     }
 }

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

@@ -3,7 +3,7 @@
   <ItemGroup Label="Package References">
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
     <PackageReference Include="DeepEqual" Version="2.0.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.3.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
     <PackageReference Update="Microsoft.EntityFrameworkCore.Sqlite" Version="2.1.4" />

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

@@ -5,7 +5,7 @@
   </PropertyGroup>
   <ItemGroup Label="Package References">
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.3.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
   </ItemGroup>

osu.Game.Tournament/Components/TourneyVideo.cs

@@ -7,6 +7,7 @@ using osu.Framework.Graphics.Colour;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
 using osu.Framework.Graphics.Video;
+using osu.Framework.Timing;
 using osu.Game.Graphics;
 
 namespace osu.Game.Tournament.Components
@@ -15,6 +16,8 @@ namespace osu.Game.Tournament.Components
     {
         private readonly VideoSprite video;
 
+        private readonly ManualClock manualClock;
+
         public TourneyVideo(Stream stream)
         {
             if (stream == null)
@@ -30,6 +33,7 @@ namespace osu.Game.Tournament.Components
                 {
                     RelativeSizeAxes = Axes.Both,
                     FillMode = FillMode.Fit,
+                    Clock = new FramedClock(manualClock = new ManualClock())
                 };
         }
 
@@ -41,5 +45,17 @@ namespace osu.Game.Tournament.Components
                     video.Loop = value;
             }
         }
+
+        protected override void Update()
+        {
+            base.Update();
+
+            if (manualClock != null && Clock.ElapsedFrameTime < 100)
+            {
+                // we want to avoid seeking as much as possible, because we care about performance, not sync.
+                // to avoid seeking completely, we only increment out local clock when in an updating state.
+                manualClock.CurrentTime += Clock.ElapsedFrameTime;
+            }
+        }
     }
 }

osu.Game.Tournament/Screens/Drawings/DrawingsScreen.cs

@@ -15,7 +15,6 @@ using osu.Framework.Logging;
 using osu.Framework.Platform;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Sprites;
-using osu.Game.Graphics.UserInterface;
 using osu.Game.Tournament.Components;
 using osu.Game.Tournament.Models;
 using osu.Game.Tournament.Screens.Drawings.Components;
@@ -24,7 +23,7 @@ using osuTK.Graphics;
 
 namespace osu.Game.Tournament.Screens.Drawings
 {
-    public class DrawingsScreen : CompositeDrawable
+    public class DrawingsScreen : TournamentScreen
     {
         private const string results_filename = "drawings_results.txt";
 
@@ -128,21 +127,21 @@ namespace osu.Game.Tournament.Screens.Drawings
                 // Control panel container
                 new ControlPanel
                 {
-                    new OsuButton
+                    new TourneyButton
                     {
                         RelativeSizeAxes = Axes.X,
 
                         Text = "Begin random",
                         Action = teamsContainer.StartScrolling,
                     },
-                    new OsuButton
+                    new TourneyButton
                     {
                         RelativeSizeAxes = Axes.X,
 
                         Text = "Stop random",
                         Action = teamsContainer.StopScrolling,
                     },
-                    new OsuButton
+                    new TourneyButton
                     {
                         RelativeSizeAxes = Axes.X,
 
@@ -150,7 +149,7 @@ namespace osu.Game.Tournament.Screens.Drawings
                         Action = reloadTeams
                     },
                     new ControlPanel.Spacer(),
-                    new OsuButton
+                    new TourneyButton
                     {
                         RelativeSizeAxes = Axes.X,
 

osu.Game.Tournament/Screens/Editors/TeamEditorScreen.cs

@@ -11,7 +11,6 @@ using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
 using osu.Game.Graphics;
-using osu.Game.Graphics.UserInterface;
 using osu.Game.Online.API;
 using osu.Game.Online.API.Requests;
 using osu.Game.Overlays.Settings;
@@ -32,7 +31,7 @@ namespace osu.Game.Tournament.Screens.Editors
         [BackgroundDependencyLoader]
         private void load()
         {
-            ControlPanel.Add(new OsuButton
+            ControlPanel.Add(new TourneyButton
             {
                 RelativeSizeAxes = Axes.X,
                 Text = "Add all countries",

osu.Game.Tournament/Screens/Editors/TournamentEditorScreen.cs

@@ -9,7 +9,6 @@ using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Containers;
-using osu.Game.Graphics.UserInterface;
 using osu.Game.Overlays.Settings;
 using osu.Game.Tournament.Components;
 using osuTK;
@@ -56,7 +55,7 @@ namespace osu.Game.Tournament.Screens.Editors
                 {
                     Children = new Drawable[]
                     {
-                        new OsuButton
+                        new TourneyButton
                         {
                             RelativeSizeAxes = Axes.X,
                             Text = "Add new",

osu.Game.Tournament/Screens/Gameplay/GameplayScreen.cs

@@ -103,13 +103,13 @@ namespace osu.Game.Tournament.Screens.Gameplay
                 {
                     Children = new Drawable[]
                     {
-                        warmupButton = new OsuButton
+                        warmupButton = new TourneyButton
                         {
                             RelativeSizeAxes = Axes.X,
                             Text = "Toggle warmup",
                             Action = () => warmup.Toggle()
                         },
-                        new OsuButton
+                        new TourneyButton
                         {
                             RelativeSizeAxes = Axes.X,
                             Text = "Toggle chat",

osu.Game.Tournament/Screens/MapPool/MapPoolScreen.cs

@@ -60,32 +60,32 @@ namespace osu.Game.Tournament.Screens.MapPool
                         {
                             Text = "Current Mode"
                         },
-                        buttonRedBan = new OsuButton
+                        buttonRedBan = new TourneyButton
                         {
                             RelativeSizeAxes = Axes.X,
                             Text = "Red Ban",
                             Action = () => setMode(TeamColour.Red, ChoiceType.Ban)
                         },
-                        buttonBlueBan = new OsuButton
+                        buttonBlueBan = new TourneyButton
                         {
                             RelativeSizeAxes = Axes.X,
                             Text = "Blue Ban",
                             Action = () => setMode(TeamColour.Blue, ChoiceType.Ban)
                         },
-                        buttonRedPick = new OsuButton
+                        buttonRedPick = new TourneyButton
                         {
                             RelativeSizeAxes = Axes.X,
                             Text = "Red Pick",
                             Action = () => setMode(TeamColour.Red, ChoiceType.Pick)
                         },
-                        buttonBluePick = new OsuButton
+                        buttonBluePick = new TourneyButton
                         {
                             RelativeSizeAxes = Axes.X,
                             Text = "Blue Pick",
                             Action = () => setMode(TeamColour.Blue, ChoiceType.Pick)
                         },
                         new ControlPanel.Spacer(),
-                        new OsuButton
+                        new TourneyButton
                         {
                             RelativeSizeAxes = Axes.X,
                             Text = "Reset",

osu.Game.Tournament/Screens/TournamentScreen.cs

@@ -10,6 +10,8 @@ namespace osu.Game.Tournament.Screens
 {
     public abstract class TournamentScreen : CompositeDrawable
     {
+        public const double FADE_DELAY = 200;
+
         [Resolved]
         protected LadderInfo LadderInfo { get; private set; }
 
@@ -18,14 +20,8 @@ namespace osu.Game.Tournament.Screens
             RelativeSizeAxes = Axes.Both;
         }
 
-        public override void Hide()
+        public override void Hide() => this.FadeOut(FADE_DELAY);
-        {
-            this.FadeOut(200);
-        }
 
-        public override void Show()
+        public override void Show() => this.FadeIn(FADE_DELAY);
-        {
-            this.FadeIn(200);
-        }
     }
 }

osu.Game.Tournament/TournamentGameBase.cs

@@ -18,7 +18,6 @@ using osu.Framework.IO.Stores;
 using osu.Framework.Platform;
 using osu.Game.Beatmaps;
 using osu.Game.Graphics;
-using osu.Game.Graphics.UserInterface;
 using osu.Game.Online.API.Requests;
 using osu.Game.Tournament.IPC;
 using osu.Game.Tournament.Models;
@@ -76,7 +75,7 @@ namespace osu.Game.Tournament
 
             AddRange(new[]
             {
-                new OsuButton
+                new TourneyButton
                 {
                     Text = "Save Changes",
                     Width = 140,
@@ -215,7 +214,7 @@ namespace osu.Game.Tournament
 
             foreach (var r in ladder.Rounds)
             foreach (var b in r.Beatmaps)
-                if (b.BeatmapInfo == null)
+                if (b.BeatmapInfo == null && b.ID > 0)
                 {
                     var req = new GetBeatmapRequest(new BeatmapInfo { OnlineBeatmapID = b.ID });
                     req.Perform(API);

osu.Game.Tournament/TournamentSceneManager.cs

@@ -8,7 +8,8 @@ using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
 using osu.Framework.Platform;
-using osu.Game.Graphics.UserInterface;
+using osu.Framework.Threading;
+using osu.Game.Graphics;
 using osu.Game.Tournament.Components;
 using osu.Game.Tournament.Models;
 using osu.Game.Tournament.Screens;
@@ -36,6 +37,7 @@ namespace osu.Game.Tournament
         private TournamentMatchChatDisplay chat = new TournamentMatchChatDisplay();
 
         private Container chatContainer;
+        private FillFlowContainer buttons;
 
         public TournamentSceneManager()
         {
@@ -101,68 +103,136 @@ namespace osu.Game.Tournament
                             Colour = Color4.Black,
                             RelativeSizeAxes = Axes.Both,
                         },
-                        new FillFlowContainer
+                        buttons = new FillFlowContainer
                         {
                             RelativeSizeAxes = Axes.Both,
                             Direction = FillDirection.Vertical,
+                            Spacing = new Vector2(2),
+                            Padding = new MarginPadding(2),
                             Children = new Drawable[]
                             {
-                                new OsuButton { RelativeSizeAxes = Axes.X, Text = "Setup", Action = () => SetScreen(typeof(SetupScreen)) },
+                                new ScreenButton(typeof(SetupScreen)) { Text = "Setup", RequestSelection = SetScreen },
-                                new Container { RelativeSizeAxes = Axes.X, Height = 50 },
+                                new Separator(),
-                                new OsuButton { RelativeSizeAxes = Axes.X, Text = "Team Editor", Action = () => SetScreen(typeof(TeamEditorScreen)) },
+                                new ScreenButton(typeof(TeamEditorScreen)) { Text = "Team Editor", RequestSelection = SetScreen },
-                                new OsuButton { RelativeSizeAxes = Axes.X, Text = "Rounds Editor", Action = () => SetScreen(typeof(RoundEditorScreen)) },
+                                new ScreenButton(typeof(RoundEditorScreen)) { Text = "Rounds Editor", RequestSelection = SetScreen },
-                                new OsuButton { RelativeSizeAxes = Axes.X, Text = "Bracket Editor", Action = () => SetScreen(typeof(LadderEditorScreen)) },
+                                new ScreenButton(typeof(LadderEditorScreen)) { Text = "Bracket Editor", RequestSelection = SetScreen },
-                                new Container { RelativeSizeAxes = Axes.X, Height = 50 },
+                                new Separator(),
-                                new OsuButton { RelativeSizeAxes = Axes.X, Text = "Drawings", Action = () => SetScreen(typeof(DrawingsScreen)) },
+                                new ScreenButton(typeof(ScheduleScreen)) { Text = "Schedule", RequestSelection = SetScreen },
-                                new OsuButton { RelativeSizeAxes = Axes.X, Text = "Showcase", Action = () => SetScreen(typeof(ShowcaseScreen)) },
+                                new ScreenButton(typeof(LadderScreen)) { Text = "Bracket", RequestSelection = SetScreen },
-                                new Container { RelativeSizeAxes = Axes.X, Height = 50 },
+                                new Separator(),
-                                new OsuButton { RelativeSizeAxes = Axes.X, Text = "Schedule", Action = () => SetScreen(typeof(ScheduleScreen)) },
+                                new ScreenButton(typeof(TeamIntroScreen)) { Text = "TeamIntro", RequestSelection = SetScreen },
-                                new OsuButton { RelativeSizeAxes = Axes.X, Text = "Bracket", Action = () => SetScreen(typeof(LadderScreen)) },
+                                new Separator(),
-                                new Container { RelativeSizeAxes = Axes.X, Height = 50 },
+                                new ScreenButton(typeof(MapPoolScreen)) { Text = "MapPool", RequestSelection = SetScreen },
-                                new OsuButton { RelativeSizeAxes = Axes.X, Text = "TeamIntro", Action = () => SetScreen(typeof(TeamIntroScreen)) },
+                                new ScreenButton(typeof(GameplayScreen)) { Text = "Gameplay", RequestSelection = SetScreen },
-                                new OsuButton { RelativeSizeAxes = Axes.X, Text = "MapPool", Action = () => SetScreen(typeof(MapPoolScreen)) },
+                                new Separator(),
-                                new OsuButton { RelativeSizeAxes = Axes.X, Text = "Gameplay", Action = () => SetScreen(typeof(GameplayScreen)) },
+                                new ScreenButton(typeof(TeamWinScreen)) { Text = "Win", RequestSelection = SetScreen },
-                                new Container { RelativeSizeAxes = Axes.X, Height = 50 },
+                                new Separator(),
-                                new OsuButton { RelativeSizeAxes = Axes.X, Text = "Win", Action = () => SetScreen(typeof(TeamWinScreen)) },
+                                new ScreenButton(typeof(DrawingsScreen)) { Text = "Drawings", RequestSelection = SetScreen },
+                                new ScreenButton(typeof(ShowcaseScreen)) { Text = "Showcase", RequestSelection = SetScreen },
                             }
                         },
                     },
                 },
             };
 
+            foreach (var drawable in screens)
+                drawable.Hide();
+
             SetScreen(typeof(SetupScreen));
         }
 
+        private float depth;
+
+        private Drawable currentScreen;
+        private ScheduledDelegate scheduledHide;
+
         public void SetScreen(Type screenType)
         {
-            var screen = screens.FirstOrDefault(s => s.GetType() == screenType);
+            var target = screens.FirstOrDefault(s => s.GetType() == screenType);
-            if (screen == null) return;
 
-            foreach (var s in screens.Children)
+            if (target == null || currentScreen == target) return;
+
+            if (scheduledHide?.Completed == false)
             {
-                if (s == screen)
+                scheduledHide.RunTask();
-                {
+                scheduledHide.Cancel(); // see https://github.com/ppy/osu-framework/issues/2967
-                    s.Show();
+                scheduledHide = null;
-                    if (s is IProvideVideo)
-                        video.FadeOut(200);
-                    else
-                        video.Show();
-                }
-                else
-                    s.Hide();
             }
 
-            switch (screen)
+            var lastScreen = currentScreen;
+            currentScreen = target;
+
+            if (currentScreen is IProvideVideo)
+            {
+                video.FadeOut(200);
+
+                // delay the hide to avoid a double-fade transition.
+                scheduledHide = Scheduler.AddDelayed(() => lastScreen?.Hide(), TournamentScreen.FADE_DELAY);
+            }
+            else
+            {
+                lastScreen?.Hide();
+                video.Show();
+            }
+
+            screens.ChangeChildDepth(currentScreen, depth--);
+            currentScreen.Show();
+
+            switch (currentScreen)
             {
                 case GameplayScreen _:
                 case MapPoolScreen _:
-                    chatContainer.FadeIn(100);
+                    chatContainer.FadeIn(TournamentScreen.FADE_DELAY);
                     break;
 
                 default:
-                    chatContainer.FadeOut(100);
+                    chatContainer.FadeOut(TournamentScreen.FADE_DELAY);
                     break;
             }
+
+            foreach (var s in buttons.OfType<ScreenButton>())
+                s.IsSelected = screenType == s.Type;
+        }
+
+        private class Separator : CompositeDrawable
+        {
+            public Separator()
+            {
+                RelativeSizeAxes = Axes.X;
+                Height = 20;
+            }
+        }
+
+        private class ScreenButton : TourneyButton
+        {
+            public readonly Type Type;
+
+            public ScreenButton(Type type)
+            {
+                Type = type;
+                BackgroundColour = OsuColour.Gray(0.2f);
+                Action = () => RequestSelection(type);
+
+                RelativeSizeAxes = Axes.X;
+            }
+
+            private bool isSelected;
+
+            public Action<Type> RequestSelection;
+
+            public bool IsSelected
+            {
+                get => isSelected;
+                set
+                {
+                    if (value == isSelected)
+                        return;
+
+                    isSelected = value;
+                    BackgroundColour = isSelected ? Color4.SkyBlue : OsuColour.Gray(0.2f);
+                    SpriteText.Colour = isSelected ? Color4.Black : Color4.White;
+                }
+            }
         }
     }
 }

osu.Game.Tournament/TourneyButton.cs

@@ -0,0 +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 osu.Game.Graphics.UserInterface;
+
+namespace osu.Game.Tournament
+{
+    public class TourneyButton : OsuButton
+    {
+        public TourneyButton()
+            : base(null)
+        {
+        }
+    }
+}

osu.Game/Audio/PreviewTrack.cs

@@ -9,15 +9,18 @@ using osu.Framework.Threading;
 
 namespace osu.Game.Audio
 {
+    [LongRunningLoad]
     public abstract class PreviewTrack : Component
     {
         /// <summary>
         /// Invoked when this <see cref="PreviewTrack"/> has stopped playing.
+        /// Not invoked in a thread-safe context.
         /// </summary>
         public event Action Stopped;
 
         /// <summary>
         /// Invoked when this <see cref="PreviewTrack"/> has started playing.
+        /// Not invoked in a thread-safe context.
         /// </summary>
         public event Action Started;
 
@@ -29,7 +32,7 @@ namespace osu.Game.Audio
         {
             track = GetTrack();
             if (track != null)
-                track.Completed += () => Schedule(Stop);
+                track.Completed += Stop;
         }
 
         /// <summary>
@@ -93,6 +96,7 @@ namespace osu.Game.Audio
             hasStarted = false;
 
             track.Stop();
+
             Stopped?.Invoke();
         }
 

osu.Game/Audio/PreviewTrackManager.cs

@@ -46,18 +46,18 @@ namespace osu.Game.Audio
         {
             var track = CreatePreviewTrack(beatmapSetInfo, trackStore);
 
-            track.Started += () =>
+            track.Started += () => Schedule(() =>
             {
                 current?.Stop();
                 current = track;
                 audio.Tracks.AddAdjustment(AdjustableProperty.Volume, muteBindable);
-            };
+            });
 
-            track.Stopped += () =>
+            track.Stopped += () => Schedule(() =>
             {
                 current = null;
                 audio.Tracks.RemoveAdjustment(AdjustableProperty.Volume, muteBindable);
-            };
+            });
 
             return track;
         }

osu.Game/Beatmaps/BeatmapManager.cs

@@ -392,8 +392,15 @@ namespace osu.Game.Beatmaps
 
                 req.Failure += e => { LogForModel(set, $"Online retrieval failed for {beatmap} ({e.Message})"); };
 
-                // intentionally blocking to limit web request concurrency
+                try
-                req.Perform(api);
+                {
+                    // intentionally blocking to limit web request concurrency
+                    req.Perform(api);
+                }
+                catch (Exception e)
+                {
+                    LogForModel(set, $"Online retrieval failed for {beatmap} ({e.Message})");
+                }
             }
         }
     }

osu.Game/Beatmaps/ControlPoints/TimingControlPoint.cs

@@ -43,6 +43,11 @@ namespace osu.Game.Beatmaps.ControlPoints
             set => BeatLengthBindable.Value = value;
         }
 
+        /// <summary>
+        /// The BPM at this control point.
+        /// </summary>
+        public double BPM => 60000 / BeatLength;
+
         public override bool EquivalentTo(ControlPoint other) =>
             other is TimingControlPoint otherTyped
             && TimeSignature == otherTyped.TimeSignature && BeatLength.Equals(otherTyped.BeatLength);

osu.Game/Beatmaps/Drawables/BeatmapSetCover.cs

@@ -8,6 +8,7 @@ using osu.Framework.Graphics.Textures;
 
 namespace osu.Game.Beatmaps.Drawables
 {
+    [LongRunningLoad]
     public class BeatmapSetCover : Sprite
     {
         private readonly BeatmapSetInfo set;

osu.Game/Database/DownloadableArchiveModelManager.cs

@@ -86,16 +86,7 @@ namespace osu.Game.Database
                 }, TaskCreationOptions.LongRunning);
             };
 
-            request.Failure += error =>
+            request.Failure += triggerFailure;
-            {
-                DownloadFailed?.Invoke(request);
-
-                if (error is OperationCanceledException) return;
-
-                notification.State = ProgressNotificationState.Cancelled;
-                Logger.Error(error, $"{HumanisedModelName.Titleize()} download failed!");
-                currentDownloads.Remove(request);
-            };
 
             notification.CancelRequested += () =>
             {
@@ -108,11 +99,31 @@ namespace osu.Game.Database
             currentDownloads.Add(request);
             PostNotification?.Invoke(notification);
 
-            Task.Factory.StartNew(() => request.Perform(api), TaskCreationOptions.LongRunning);
+            Task.Factory.StartNew(() =>
+            {
+                try
+                {
+                    request.Perform(api);
+                }
+                catch (Exception error)
+                {
+                    triggerFailure(error);
+                }
+            }, TaskCreationOptions.LongRunning);
 
             DownloadBegan?.Invoke(request);
-
             return true;
+
+            void triggerFailure(Exception error)
+            {
+                DownloadFailed?.Invoke(request);
+
+                if (error is OperationCanceledException) return;
+
+                notification.State = ProgressNotificationState.Cancelled;
+                Logger.Error(error, $"{HumanisedModelName.Titleize()} download failed!");
+                currentDownloads.Remove(request);
+            }
         }
 
         public bool IsAvailableLocally(TModel model) => CheckLocalAvailability(model, modelStore.ConsumableItems.Where(m => !m.DeletePending));

osu.Game/Graphics/Containers/LinkFlowContainer.cs

@@ -8,9 +8,6 @@ using osu.Framework.Allocation;
 using osu.Framework.Graphics.Sprites;
 using System.Collections.Generic;
 using osu.Framework.Graphics;
-using osu.Framework.Logging;
-using osu.Game.Overlays;
-using osu.Game.Overlays.Notifications;
 using osu.Game.Users;
 
 namespace osu.Game.Graphics.Containers
@@ -23,21 +20,12 @@ namespace osu.Game.Graphics.Containers
         }
 
         private OsuGame game;
-        private ChannelManager channelManager;
-        private Action showNotImplementedError;
 
         [BackgroundDependencyLoader(true)]
-        private void load(OsuGame game, NotificationOverlay notifications, ChannelManager channelManager)
+        private void load(OsuGame game)
         {
             // will be null in tests
             this.game = game;
-            this.channelManager = channelManager;
-
-            showNotImplementedError = () => notifications?.Post(new SimpleNotification
-            {
-                Text = @"This link type is not yet supported!",
-                Icon = FontAwesome.Solid.LifeRing,
-            });
         }
 
         public void AddLinks(string text, List<Link> links)
@@ -56,85 +44,47 @@ namespace osu.Game.Graphics.Containers
             foreach (var link in links)
             {
                 AddText(text.Substring(previousLinkEnd, link.Index - previousLinkEnd));
-                AddLink(text.Substring(link.Index, link.Length), link.Url, link.Action, link.Argument);
+                AddLink(text.Substring(link.Index, link.Length), link.Action, link.Argument ?? link.Url);
                 previousLinkEnd = link.Index + link.Length;
             }
 
             AddText(text.Substring(previousLinkEnd));
         }
 
-        public IEnumerable<Drawable> AddLink(string text, string url, LinkAction linkType = LinkAction.External, string linkArgument = null, string tooltipText = null, Action<SpriteText> creationParameters = null)
+        public void AddLink(string text, string url, Action<SpriteText> creationParameters = null) =>
-            => createLink(AddText(text, creationParameters), text, url, linkType, linkArgument, tooltipText);
+            createLink(AddText(text, creationParameters), new LinkDetails(LinkAction.External, url), url);
 
-        public IEnumerable<Drawable> AddLink(string text, Action action, string tooltipText = null, Action<SpriteText> creationParameters = null)
+        public void AddLink(string text, Action action, string tooltipText = null, Action<SpriteText> creationParameters = null)
-            => createLink(AddText(text, creationParameters), text, tooltipText: tooltipText, action: action);
+            => createLink(AddText(text, creationParameters), new LinkDetails(LinkAction.Custom, null), tooltipText, action);
 
-        public IEnumerable<Drawable> AddLink(IEnumerable<SpriteText> text, string url, LinkAction linkType = LinkAction.External, string linkArgument = null, string tooltipText = null)
+        public void AddLink(string text, LinkAction action, string argument, string tooltipText = null, Action<SpriteText> creationParameters = null)
+            => createLink(AddText(text, creationParameters), new LinkDetails(action, argument), null);
+
+        public void AddLink(IEnumerable<SpriteText> text, LinkAction action = LinkAction.External, string linkArgument = null, string tooltipText = null)
         {
             foreach (var t in text)
                 AddArbitraryDrawable(t);
 
-            return createLink(text, null, url, linkType, linkArgument, tooltipText);
+            createLink(text, new LinkDetails(action, linkArgument), tooltipText);
         }
 
-        public IEnumerable<Drawable> AddUserLink(User user, Action<SpriteText> creationParameters = null)
+        public void AddUserLink(User user, Action<SpriteText> creationParameters = null)
-            => createLink(AddText(user.Username, creationParameters), user.Username, null, LinkAction.OpenUserProfile, user.Id.ToString(), "View profile");
+            => createLink(AddText(user.Username, creationParameters), new LinkDetails(LinkAction.OpenUserProfile, user.Id.ToString()), "View Profile");
 
-        private IEnumerable<Drawable> createLink(IEnumerable<Drawable> drawables, string text, string url = null, LinkAction linkType = LinkAction.External, string linkArgument = null, string tooltipText = null, Action action = null)
+        private void createLink(IEnumerable<Drawable> drawables, LinkDetails link, string tooltipText, Action action = null)
         {
             AddInternal(new DrawableLinkCompiler(drawables.OfType<SpriteText>().ToList())
             {
                 RelativeSizeAxes = Axes.Both,
-                TooltipText = tooltipText ?? (url != text ? url : string.Empty),
+                TooltipText = tooltipText,
-                Action = action ?? (() =>
+                Action = () =>
                 {
-                    switch (linkType)
+                    if (action != null)
-                    {
+                        action();
-                        case LinkAction.OpenBeatmap:
+                    else
-                            // TODO: proper query params handling
+                        game.HandleLink(link);
-                            if (linkArgument != null && int.TryParse(linkArgument.Contains('?') ? linkArgument.Split('?')[0] : linkArgument, out int beatmapId))
+                },
-                                game?.ShowBeatmap(beatmapId);
-                            break;
-
-                        case LinkAction.OpenBeatmapSet:
-                            if (int.TryParse(linkArgument, out int setId))
-                                game?.ShowBeatmapSet(setId);
-                            break;
-
-                        case LinkAction.OpenChannel:
-                            try
-                            {
-                                channelManager?.OpenChannel(linkArgument);
-                            }
-                            catch (ChannelNotFoundException)
-                            {
-                                Logger.Log($"The requested channel \"{linkArgument}\" does not exist");
-                            }
-
-                            break;
-
-                        case LinkAction.OpenEditorTimestamp:
-                        case LinkAction.JoinMultiplayerMatch:
-                        case LinkAction.Spectate:
-                            showNotImplementedError?.Invoke();
-                            break;
-
-                        case LinkAction.External:
-                            game?.OpenUrlExternally(url);
-                            break;
-
-                        case LinkAction.OpenUserProfile:
-                            if (long.TryParse(linkArgument, out long userId))
-                                game?.ShowUser(userId);
-                            break;
-
-                        default:
-                            throw new NotImplementedException($"This {nameof(LinkAction)} ({linkType.ToString()}) is missing an associated action.");
-                    }
-                }),
             });
-
-            return drawables;
         }
 
         // We want the compilers to always be visible no matter where they are, so RelativeSizeAxes is used.

osu.Game/Graphics/UserInterface/OsuButton.cs

@@ -1,10 +1,12 @@
 // 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.Diagnostics;
 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.Framework.Graphics.UserInterface;
@@ -19,53 +21,106 @@ namespace osu.Game.Graphics.UserInterface
     /// </summary>
     public class OsuButton : Button
     {
-        private Box hover;
+        public string Text
+        {
+            get => SpriteText?.Text;
+            set
+            {
+                if (SpriteText != null)
+                    SpriteText.Text = value;
+            }
+        }
 
-        public OsuButton()
+        private Color4? backgroundColour;
+
+        public Color4 BackgroundColour
+        {
+            set
+            {
+                backgroundColour = value;
+                Background.FadeColour(value);
+            }
+        }
+
+        protected override Container<Drawable> Content { get; }
+
+        protected Box Hover;
+        protected Box Background;
+        protected SpriteText SpriteText;
+
+        public OsuButton(HoverSampleSet? hoverSounds = HoverSampleSet.Loud)
         {
             Height = 40;
 
-            Content.Masking = true;
+            AddInternal(Content = new Container
-            Content.CornerRadius = 5;
+            {
+                Anchor = Anchor.Centre,
+                Origin = Anchor.Centre,
+                Masking = true,
+                CornerRadius = 5,
+                RelativeSizeAxes = Axes.Both,
+                Children = new Drawable[]
+                {
+                    Background = new Box
+                    {
+                        Anchor = Anchor.Centre,
+                        Origin = Anchor.Centre,
+                        RelativeSizeAxes = Axes.Both,
+                    },
+                    Hover = new Box
+                    {
+                        Alpha = 0,
+                        Anchor = Anchor.Centre,
+                        Origin = Anchor.Centre,
+                        RelativeSizeAxes = Axes.Both,
+                        Colour = Color4.White.Opacity(.1f),
+                        Blending = BlendingParameters.Additive,
+                        Depth = float.MinValue
+                    },
+                    SpriteText = CreateText(),
+                }
+            });
+
+            if (hoverSounds.HasValue)
+                AddInternal(new HoverClickSounds(hoverSounds.Value));
+
+            Enabled.BindValueChanged(enabledChanged, true);
         }
 
         [BackgroundDependencyLoader]
         private void load(OsuColour colours)
         {
-            BackgroundColour = colours.BlueDark;
+            if (backgroundColour == null)
-
+                BackgroundColour = colours.BlueDark;
-            AddRange(new Drawable[]
-            {
-                hover = new Box
-                {
-                    RelativeSizeAxes = Axes.Both,
-                    Blending = BlendingParameters.Additive,
-                    Colour = Color4.White.Opacity(0.1f),
-                    Alpha = 0,
-                    Depth = -1
-                },
-                new HoverClickSounds(HoverSampleSet.Loud),
-            });
 
             Enabled.ValueChanged += enabledChanged;
             Enabled.TriggerChange();
         }
 
-        private void enabledChanged(ValueChangedEvent<bool> e)
+        protected override bool OnClick(ClickEvent e)
         {
-            this.FadeColour(e.NewValue ? Color4.White : Color4.Gray, 200, Easing.OutQuint);
+            if (Enabled.Value)
+            {
+                Debug.Assert(backgroundColour != null);
+                Background.FlashColour(backgroundColour.Value, 200);
+            }
+
+            return base.OnClick(e);
         }
 
         protected override bool OnHover(HoverEvent e)
         {
-            hover.FadeIn(200);
+            if (Enabled.Value)
-            return true;
+                Hover.FadeIn(200, Easing.OutQuint);
+
+            return base.OnHover(e);
         }
 
         protected override void OnHoverLost(HoverLostEvent e)
         {
-            hover.FadeOut(200);
             base.OnHoverLost(e);
+
+            Hover.FadeOut(300);
         }
 
         protected override bool OnMouseDown(MouseDownEvent e)
@@ -80,12 +135,17 @@ namespace osu.Game.Graphics.UserInterface
             return base.OnMouseUp(e);
         }
 
-        protected override SpriteText CreateText() => new OsuSpriteText
+        protected virtual SpriteText CreateText() => new OsuSpriteText
         {
             Depth = -1,
             Origin = Anchor.Centre,
             Anchor = Anchor.Centre,
             Font = OsuFont.GetFont(weight: FontWeight.Bold)
         };
+
+        private void enabledChanged(ValueChangedEvent<bool> e)
+        {
+            this.FadeColour(e.NewValue ? Color4.White : Color4.Gray, 200, Easing.OutQuint);
+        }
     }
 }

osu.Game/IO/Archives/ZipArchiveReader.cs

@@ -1,30 +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;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using osu.Framework.IO.Stores;
 using SharpCompress.Archives.Zip;
-using SharpCompress.Common;
 
 namespace osu.Game.IO.Archives
 {
     public sealed class ZipArchiveReader : ArchiveReader
     {
-        /// <summary>
-        /// List of substrings that indicate a file should be ignored during the import process
-        /// (usually due to representing no useful data and being autogenerated by the OS).
-        /// </summary>
-        private static readonly string[] filename_ignore_list =
-        {
-            // Mac-specific
-            "__MACOSX",
-            ".DS_Store",
-            // Windows-specific
-            "Thumbs.db"
-        };
-
         private readonly Stream archiveStream;
         private readonly ZipArchive archive;
 
@@ -58,9 +44,7 @@ namespace osu.Game.IO.Archives
             archiveStream.Dispose();
         }
 
-        private static bool canBeIgnored(IEntry entry) => filename_ignore_list.Any(ignoredName => entry.Key.IndexOf(ignoredName, StringComparison.OrdinalIgnoreCase) >= 0);
+        public override IEnumerable<string> Filenames => archive.Entries.Select(e => e.Key).ExcludeSystemFileNames();
-
-        public override IEnumerable<string> Filenames => archive.Entries.Where(e => !canBeIgnored(e)).Select(e => e.Key).ToArray();
 
         public override Stream GetUnderlyingStream() => archiveStream;
     }

osu.Game/Online/API/DummyAPIAccess.cs

@@ -19,7 +19,7 @@ namespace osu.Game.Online.API
 
         public Bindable<UserActivity> Activity { get; } = new Bindable<UserActivity>();
 
-        public bool IsLoggedIn => true;
+        public bool IsLoggedIn => State == APIState.Online;
 
         public string ProvidedUsername => LocalUser.Value.Username;
 

osu.Game/Online/Chat/MessageFormatter.cs

@@ -81,7 +81,7 @@ namespace osu.Game.Online.Chat
                     //since we just changed the line display text, offset any already processed links.
                     result.Links.ForEach(l => l.Index -= l.Index > index ? m.Length - displayText.Length : 0);
 
-                    var details = getLinkDetails(linkText);
+                    var details = GetLinkDetails(linkText);
                     result.Links.Add(new Link(linkText, index, displayText.Length, linkActionOverride ?? details.Action, details.Argument));
 
                     //adjust the offset for processing the current matches group.
@@ -98,7 +98,7 @@ namespace osu.Game.Online.Chat
                 var linkText = m.Groups["link"].Value;
                 var indexLength = linkText.Length;
 
-                var details = getLinkDetails(linkText);
+                var details = GetLinkDetails(linkText);
                 var link = new Link(linkText, index, indexLength, details.Action, details.Argument);
 
                 // sometimes an already-processed formatted link can reduce to a simple URL, too
@@ -109,7 +109,7 @@ namespace osu.Game.Online.Chat
             }
         }
 
-        private static LinkDetails getLinkDetails(string url)
+        public static LinkDetails GetLinkDetails(string url)
         {
             var args = url.Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
             args[0] = args[0].TrimEnd(':');
@@ -255,17 +255,17 @@ namespace osu.Game.Online.Chat
                 OriginalText = Text = text;
             }
         }
+    }
 
-        public class LinkDetails
+    public class LinkDetails
+    {
+        public LinkAction Action;
+        public string Argument;
+
+        public LinkDetails(LinkAction action, string argument)
         {
-            public LinkAction Action;
+            Action = action;
-            public string Argument;
+            Argument = argument;
-
-            public LinkDetails(LinkAction action, string argument)
-            {
-                Action = action;
-                Argument = argument;
-            }
         }
     }
 
@@ -279,6 +279,7 @@ namespace osu.Game.Online.Chat
         JoinMultiplayerMatch,
         Spectate,
         OpenUserProfile,
+        Custom
     }
 
     public class Link : IComparable<Link>

osu.Game/Online/Leaderboards/LeaderboardScore.cs

@@ -21,6 +21,7 @@ using osu.Game.Users.Drawables;
 using osuTK;
 using osuTK.Graphics;
 using Humanizer;
+using osu.Game.Online.API;
 
 namespace osu.Game.Online.Leaderboards
 {
@@ -37,6 +38,7 @@ namespace osu.Game.Online.Leaderboards
 
         private readonly ScoreInfo score;
         private readonly int rank;
+        private readonly bool allowHighlight;
 
         private Box background;
         private Container content;
@@ -49,17 +51,18 @@ namespace osu.Game.Online.Leaderboards
 
         private List<ScoreComponentLabel> statisticsLabels;
 
-        public LeaderboardScore(ScoreInfo score, int rank)
+        public LeaderboardScore(ScoreInfo score, int rank, bool allowHighlight = true)
         {
             this.score = score;
             this.rank = rank;
+            this.allowHighlight = allowHighlight;
 
             RelativeSizeAxes = Axes.X;
             Height = HEIGHT;
         }
 
         [BackgroundDependencyLoader]
-        private void load()
+        private void load(IAPIProvider api, OsuColour colour)
         {
             var user = score.User;
 
@@ -100,7 +103,7 @@ namespace osu.Game.Online.Leaderboards
                                 background = new Box
                                 {
                                     RelativeSizeAxes = Axes.Both,
-                                    Colour = Color4.Black,
+                                    Colour = user.Id == api.LocalUser.Value.Id && allowHighlight ? colour.Green : Color4.Black,
                                     Alpha = background_alpha,
                                 },
                             },

osu.Game/OsuGame.cs

@@ -215,31 +215,102 @@ namespace osu.Game
 
         private ExternalLinkOpener externalLinkOpener;
 
-        public void OpenUrlExternally(string url)
+        /// <summary>
+        /// Handle an arbitrary URL. Displays via in-game overlays where possible.
+        /// This can be called from a non-thread-safe non-game-loaded state.
+        /// </summary>
+        /// <param name="url">The URL to load.</param>
+        public void HandleLink(string url) => HandleLink(MessageFormatter.GetLinkDetails(url));
+
+        /// <summary>
+        /// Handle a specific <see cref="LinkDetails"/>.
+        /// This can be called from a non-thread-safe non-game-loaded state.
+        /// </summary>
+        /// <param name="link">The link to load.</param>
+        public void HandleLink(LinkDetails link) => Schedule(() =>
+        {
+            switch (link.Action)
+            {
+                case LinkAction.OpenBeatmap:
+                    // TODO: proper query params handling
+                    if (link.Argument != null && int.TryParse(link.Argument.Contains('?') ? link.Argument.Split('?')[0] : link.Argument, out int beatmapId))
+                        ShowBeatmap(beatmapId);
+                    break;
+
+                case LinkAction.OpenBeatmapSet:
+                    if (int.TryParse(link.Argument, out int setId))
+                        ShowBeatmapSet(setId);
+                    break;
+
+                case LinkAction.OpenChannel:
+                    ShowChannel(link.Argument);
+                    break;
+
+                case LinkAction.OpenEditorTimestamp:
+                case LinkAction.JoinMultiplayerMatch:
+                case LinkAction.Spectate:
+                    waitForReady(() => notifications, _ => notifications?.Post(new SimpleNotification
+                    {
+                        Text = @"This link type is not yet supported!",
+                        Icon = FontAwesome.Solid.LifeRing,
+                    }));
+                    break;
+
+                case LinkAction.External:
+                    OpenUrlExternally(link.Argument);
+                    break;
+
+                case LinkAction.OpenUserProfile:
+                    if (long.TryParse(link.Argument, out long userId))
+                        ShowUser(userId);
+                    break;
+
+                default:
+                    throw new NotImplementedException($"This {nameof(LinkAction)} ({link.Action.ToString()}) is missing an associated action.");
+            }
+        });
+
+        public void OpenUrlExternally(string url) => waitForReady(() => externalLinkOpener, _ =>
         {
             if (url.StartsWith("/"))
                 url = $"{API.Endpoint}{url}";
 
             externalLinkOpener.OpenUrlExternally(url);
-        }
+        });
+
+        /// <summary>
+        /// Open a specific channel in chat.
+        /// </summary>
+        /// <param name="channel">The channel to display.</param>
+        public void ShowChannel(string channel) => waitForReady(() => channelManager, _ =>
+        {
+            try
+            {
+                channelManager.OpenChannel(channel);
+            }
+            catch (ChannelNotFoundException)
+            {
+                Logger.Log($"The requested channel \"{channel}\" does not exist");
+            }
+        });
 
         /// <summary>
         /// Show a beatmap set as an overlay.
         /// </summary>
         /// <param name="setId">The set to display.</param>
-        public void ShowBeatmapSet(int setId) => beatmapSetOverlay.FetchAndShowBeatmapSet(setId);
+        public void ShowBeatmapSet(int setId) => waitForReady(() => beatmapSetOverlay, _ => beatmapSetOverlay.FetchAndShowBeatmapSet(setId));
 
         /// <summary>
         /// Show a user's profile as an overlay.
         /// </summary>
         /// <param name="userId">The user to display.</param>
-        public void ShowUser(long userId) => userProfile.ShowUser(userId);
+        public void ShowUser(long userId) => waitForReady(() => userProfile, _ => userProfile.ShowUser(userId));
 
         /// <summary>
         /// Show a beatmap's set as an overlay, displaying the given beatmap.
         /// </summary>
         /// <param name="beatmapId">The beatmap to show.</param>
-        public void ShowBeatmap(int beatmapId) => beatmapSetOverlay.FetchAndShowBeatmap(beatmapId);
+        public void ShowBeatmap(int beatmapId) => waitForReady(() => beatmapSetOverlay, _ => beatmapSetOverlay.FetchAndShowBeatmap(beatmapId));
 
         /// <summary>
         /// Present a beatmap at song select immediately.
@@ -397,6 +468,23 @@ namespace osu.Game
             performFromMainMenuTask = Schedule(() => performFromMainMenu(action, taskName));
         }
 
+        /// <summary>
+        /// Wait for the game (and target component) to become loaded and then run an action.
+        /// </summary>
+        /// <param name="retrieveInstance">A function to retrieve a (potentially not-yet-constructed) target instance.</param>
+        /// <param name="action">The action to perform on the instance when load is confirmed.</param>
+        /// <typeparam name="T">The type of the target instance.</typeparam>
+        private void waitForReady<T>(Func<T> retrieveInstance, Action<T> action)
+            where T : Drawable
+        {
+            var instance = retrieveInstance();
+
+            if (ScreenStack == null || ScreenStack.CurrentScreen is StartupScreen || instance?.IsLoaded != true)
+                Schedule(() => waitForReady(retrieveInstance, action));
+            else
+                action(instance);
+        }
+
         protected override void Dispose(bool isDisposing)
         {
             base.Dispose(isDisposing);

osu.Game/Overlays/BeatmapSet/BeatmapPicker.cs

@@ -17,6 +17,7 @@ using osu.Game.Beatmaps.Drawables;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.Sprites;
+using osu.Game.Rulesets;
 using osuTK;
 using osuTK.Graphics;
 
@@ -27,10 +28,11 @@ namespace osu.Game.Overlays.BeatmapSet
         private const float tile_icon_padding = 7;
         private const float tile_spacing = 2;
 
-        private readonly DifficultiesContainer difficulties;
         private readonly OsuSpriteText version, starRating;
         private readonly Statistic plays, favourites;
 
+        public readonly DifficultiesContainer Difficulties;
+
         public readonly Bindable<BeatmapInfo> Beatmap = new Bindable<BeatmapInfo>();
 
         private BeatmapSetInfo beatmapSet;
@@ -43,38 +45,10 @@ namespace osu.Game.Overlays.BeatmapSet
                 if (value == beatmapSet) return;
 
                 beatmapSet = value;
-
                 updateDisplay();
             }
         }
 
-        private void updateDisplay()
-        {
-            difficulties.Clear();
-
-            if (BeatmapSet != null)
-            {
-                difficulties.ChildrenEnumerable = BeatmapSet.Beatmaps.OrderBy(beatmap => beatmap.StarDifficulty).Select(b => new DifficultySelectorButton(b)
-                {
-                    State = DifficultySelectorState.NotSelected,
-                    OnHovered = beatmap =>
-                    {
-                        showBeatmap(beatmap);
-                        starRating.Text = beatmap.StarDifficulty.ToString("Star Difficulty 0.##");
-                        starRating.FadeIn(100);
-                    },
-                    OnClicked = beatmap => { Beatmap.Value = beatmap; },
-                });
-            }
-
-            starRating.FadeOut(100);
-            Beatmap.Value = BeatmapSet?.Beatmaps.FirstOrDefault();
-            plays.Value = BeatmapSet?.OnlineInfo.PlayCount ?? 0;
-            favourites.Value = BeatmapSet?.OnlineInfo.FavouriteCount ?? 0;
-
-            updateDifficultyButtons();
-        }
-
         public BeatmapPicker()
         {
             RelativeSizeAxes = Axes.X;
@@ -89,7 +63,7 @@ namespace osu.Game.Overlays.BeatmapSet
                     Direction = FillDirection.Vertical,
                     Children = new Drawable[]
                     {
-                        difficulties = new DifficultiesContainer
+                        Difficulties = new DifficultiesContainer
                         {
                             RelativeSizeAxes = Axes.X,
                             AutoSizeAxes = Axes.Y,
@@ -147,6 +121,9 @@ namespace osu.Game.Overlays.BeatmapSet
             };
         }
 
+        [Resolved]
+        private IBindable<RulesetInfo> ruleset { get; set; }
+
         [BackgroundDependencyLoader]
         private void load(OsuColour colours)
         {
@@ -158,10 +135,39 @@ namespace osu.Game.Overlays.BeatmapSet
         {
             base.LoadComplete();
 
+            ruleset.ValueChanged += r => updateDisplay();
+
             // done here so everything can bind in intialization and get the first trigger
             Beatmap.TriggerChange();
         }
 
+        private void updateDisplay()
+        {
+            Difficulties.Clear();
+
+            if (BeatmapSet != null)
+            {
+                Difficulties.ChildrenEnumerable = BeatmapSet.Beatmaps.Where(b => b.Ruleset.Equals(ruleset.Value)).OrderBy(b => b.StarDifficulty).Select(b => new DifficultySelectorButton(b)
+                {
+                    State = DifficultySelectorState.NotSelected,
+                    OnHovered = beatmap =>
+                    {
+                        showBeatmap(beatmap);
+                        starRating.Text = beatmap.StarDifficulty.ToString("Star Difficulty 0.##");
+                        starRating.FadeIn(100);
+                    },
+                    OnClicked = beatmap => { Beatmap.Value = beatmap; },
+                });
+            }
+
+            starRating.FadeOut(100);
+            Beatmap.Value = Difficulties.FirstOrDefault()?.Beatmap;
+            plays.Value = BeatmapSet?.OnlineInfo.PlayCount ?? 0;
+            favourites.Value = BeatmapSet?.OnlineInfo.FavouriteCount ?? 0;
+
+            updateDifficultyButtons();
+        }
+
         private void showBeatmap(BeatmapInfo beatmap)
         {
             version.Text = beatmap?.Version;
@@ -169,10 +175,10 @@ namespace osu.Game.Overlays.BeatmapSet
 
         private void updateDifficultyButtons()
         {
-            difficulties.Children.ToList().ForEach(diff => diff.State = diff.Beatmap == Beatmap.Value ? DifficultySelectorState.Selected : DifficultySelectorState.NotSelected);
+            Difficulties.Children.ToList().ForEach(diff => diff.State = diff.Beatmap == Beatmap.Value ? DifficultySelectorState.Selected : DifficultySelectorState.NotSelected);
         }
 
-        private class DifficultiesContainer : FillFlowContainer<DifficultySelectorButton>
+        public class DifficultiesContainer : FillFlowContainer<DifficultySelectorButton>
         {
             public Action OnLostHover;
 
@@ -183,7 +189,7 @@ namespace osu.Game.Overlays.BeatmapSet
             }
         }
 
-        private class DifficultySelectorButton : OsuClickableContainer, IStateful<DifficultySelectorState>
+        public class DifficultySelectorButton : OsuClickableContainer, IStateful<DifficultySelectorState>
         {
             private const float transition_duration = 100;
             private const float size = 52;
@@ -320,7 +326,7 @@ namespace osu.Game.Overlays.BeatmapSet
             }
         }
 
-        private enum DifficultySelectorState
+        public enum DifficultySelectorState
         {
             Selected,
             NotSelected,

osu.Game/Overlays/BeatmapSet/BeatmapRulesetSelector.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 osu.Framework.Bindables;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.UserInterface;
+using osu.Game.Beatmaps;
+using osu.Game.Rulesets;
+using osuTK;
+using System.Linq;
+
+namespace osu.Game.Overlays.BeatmapSet
+{
+    public class BeatmapRulesetSelector : RulesetSelector
+    {
+        private readonly Bindable<BeatmapSetInfo> beatmapSet = new Bindable<BeatmapSetInfo>();
+
+        public BeatmapSetInfo BeatmapSet
+        {
+            get => beatmapSet.Value;
+            set
+            {
+                // propagate value to tab items first to enable only available rulesets.
+                beatmapSet.Value = value;
+
+                SelectTab(TabContainer.TabItems.FirstOrDefault(t => t.Enabled.Value));
+            }
+        }
+
+        public BeatmapRulesetSelector()
+        {
+            AutoSizeAxes = Axes.Both;
+        }
+
+        protected override TabItem<RulesetInfo> CreateTabItem(RulesetInfo value) => new BeatmapRulesetTabItem(value)
+        {
+            BeatmapSet = { BindTarget = beatmapSet }
+        };
+
+        protected override TabFillFlowContainer CreateTabFlow() => new TabFillFlowContainer
+        {
+            AutoSizeAxes = Axes.Both,
+            Direction = FillDirection.Horizontal,
+            Spacing = new Vector2(10, 0),
+        };
+    }
+}

osu.Game/Overlays/BeatmapSet/BeatmapRulesetTabItem.cs

@@ -0,0 +1,145 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Allocation;
+using osu.Framework.Bindables;
+using osu.Framework.Extensions.Color4Extensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Framework.Graphics.UserInterface;
+using osu.Framework.Input.Events;
+using osu.Game.Beatmaps;
+using osu.Game.Graphics;
+using osu.Game.Graphics.Sprites;
+using osu.Game.Graphics.UserInterface;
+using osu.Game.Rulesets;
+using osuTK;
+using osuTK.Graphics;
+using System.Linq;
+
+namespace osu.Game.Overlays.BeatmapSet
+{
+    public class BeatmapRulesetTabItem : TabItem<RulesetInfo>
+    {
+        private readonly OsuSpriteText name, count;
+        private readonly Box bar;
+
+        public readonly Bindable<BeatmapSetInfo> BeatmapSet = new Bindable<BeatmapSetInfo>();
+
+        public override bool PropagatePositionalInputSubTree => Enabled.Value && !Active.Value && base.PropagatePositionalInputSubTree;
+
+        public BeatmapRulesetTabItem(RulesetInfo value)
+            : base(value)
+        {
+            AutoSizeAxes = Axes.Both;
+
+            FillFlowContainer nameContainer;
+
+            Children = new Drawable[]
+            {
+                nameContainer = new FillFlowContainer
+                {
+                    Anchor = Anchor.Centre,
+                    Origin = Anchor.Centre,
+                    AutoSizeAxes = Axes.Both,
+                    Direction = FillDirection.Horizontal,
+                    Margin = new MarginPadding { Bottom = 7.5f },
+                    Spacing = new Vector2(2.5f),
+                    Children = new Drawable[]
+                    {
+                        name = new OsuSpriteText
+                        {
+                            Anchor = Anchor.Centre,
+                            Origin = Anchor.Centre,
+                            Text = value.Name,
+                            Font = OsuFont.Default.With(size: 18),
+                        },
+                        new Container
+                        {
+                            Anchor = Anchor.Centre,
+                            Origin = Anchor.Centre,
+                            AutoSizeAxes = Axes.Both,
+                            Masking = true,
+                            CornerRadius = 4f,
+                            Children = new Drawable[]
+                            {
+                                new Box
+                                {
+                                    RelativeSizeAxes = Axes.Both,
+                                    Colour = Color4.Black.Opacity(0.5f),
+                                },
+                                count = new OsuSpriteText
+                                {
+                                    Alpha = 0,
+                                    Anchor = Anchor.Centre,
+                                    Origin = Anchor.Centre,
+                                    Margin = new MarginPadding { Horizontal = 5f },
+                                    Font = OsuFont.Default.With(weight: FontWeight.SemiBold),
+                                }
+                            }
+                        }
+                    }
+                },
+                bar = new Box
+                {
+                    Anchor = Anchor.BottomCentre,
+                    Origin = Anchor.BottomCentre,
+                    RelativeSizeAxes = Axes.X,
+                },
+                new HoverClickSounds(),
+            };
+
+            BeatmapSet.BindValueChanged(setInfo =>
+            {
+                var beatmapsCount = setInfo.NewValue?.Beatmaps.Count(b => b.Ruleset.Equals(Value)) ?? 0;
+
+                count.Text = beatmapsCount.ToString();
+                count.Alpha = beatmapsCount > 0 ? 1f : 0f;
+
+                Enabled.Value = beatmapsCount > 0;
+            }, true);
+
+            Enabled.BindValueChanged(v => nameContainer.Alpha = v.NewValue ? 1f : 0.5f, true);
+        }
+
+        [Resolved]
+        private OsuColour colour { get; set; }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            count.Colour = colour.Gray9;
+            bar.Colour = colour.Blue;
+
+            updateState();
+        }
+
+        private void updateState()
+        {
+            var isHoveredOrActive = IsHovered || Active.Value;
+
+            bar.ResizeHeightTo(isHoveredOrActive ? 4 : 0, 200, Easing.OutQuint);
+
+            name.Colour = isHoveredOrActive ? colour.GrayE : colour.GrayC;
+            name.Font = name.Font.With(weight: Active.Value ? FontWeight.Bold : FontWeight.Regular);
+        }
+
+        #region Hovering and activation logic
+
+        protected override void OnActivated() => updateState();
+
+        protected override void OnDeactivated() => updateState();
+
+        protected override bool OnHover(HoverEvent e)
+        {
+            updateState();
+            return false;
+        }
+
+        protected override void OnHoverLost(HoverLostEvent e) => updateState();
+
+        #endregion
+    }
+}

osu.Game/Overlays/BeatmapSet/Header.cs

@@ -3,6 +3,7 @@
 
 using System.Linq;
 using osu.Framework.Allocation;
+using osu.Framework.Bindables;
 using osu.Framework.Extensions.Color4Extensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Colour;
@@ -16,6 +17,7 @@ using osu.Game.Graphics.UserInterface;
 using osu.Game.Online;
 using osu.Game.Overlays.BeatmapSet.Buttons;
 using osu.Game.Overlays.Direct;
+using osu.Game.Rulesets;
 using osuTK;
 using osuTK.Graphics;
 
@@ -39,6 +41,7 @@ namespace osu.Game.Overlays.BeatmapSet
 
         public bool DownloadButtonsVisible => downloadButtonsContainer.Any();
 
+        public readonly BeatmapRulesetSelector RulesetSelector;
         public readonly BeatmapPicker Picker;
 
         private readonly FavouriteButton favouriteButton;
@@ -47,6 +50,9 @@ namespace osu.Game.Overlays.BeatmapSet
 
         private readonly LoadingAnimation loading;
 
+        [Cached(typeof(IBindable<RulesetInfo>))]
+        private readonly Bindable<RulesetInfo> ruleset = new Bindable<RulesetInfo>();
+
         public Header()
         {
             ExternalLinkButton externalLink;
@@ -69,12 +75,18 @@ namespace osu.Game.Overlays.BeatmapSet
                 {
                     RelativeSizeAxes = Axes.X,
                     Height = tabs_height,
-                    Children = new[]
+                    Children = new Drawable[]
                     {
                         tabsBg = new Box
                         {
                             RelativeSizeAxes = Axes.Both,
                         },
+                        RulesetSelector = new BeatmapRulesetSelector
+                        {
+                            Current = ruleset,
+                            Anchor = Anchor.BottomCentre,
+                            Origin = Anchor.BottomCentre,
+                        }
                     },
                 },
                 new Container
@@ -223,7 +235,7 @@ namespace osu.Game.Overlays.BeatmapSet
 
             BeatmapSet.BindValueChanged(setInfo =>
             {
-                Picker.BeatmapSet = author.BeatmapSet = beatmapAvailability.BeatmapSet = Details.BeatmapSet = setInfo.NewValue;
+                Picker.BeatmapSet = RulesetSelector.BeatmapSet = author.BeatmapSet = beatmapAvailability.BeatmapSet = Details.BeatmapSet = setInfo.NewValue;
                 cover.BeatmapSet = setInfo.NewValue;
 
                 if (setInfo.NewValue == null)

osu.Game/Overlays/Changelog/ChangelogBuild.cs

@@ -110,7 +110,7 @@ namespace osu.Game.Overlays.Changelog
                             t.Font = fontLarge;
                             t.Colour = entryColour;
                         });
-                        title.AddLink($"{entry.Repository.Replace("ppy/", "")}#{entry.GithubPullRequestId}", entry.GithubUrl, Online.Chat.LinkAction.External,
+                        title.AddLink($"{entry.Repository.Replace("ppy/", "")}#{entry.GithubPullRequestId}", entry.GithubUrl,
                             creationParameters: t =>
                             {
                                 t.Font = fontLarge;
@@ -140,7 +140,7 @@ namespace osu.Game.Overlays.Changelog
                             t.Colour = entryColour;
                         });
                     else if (entry.GithubUser.GithubUrl != null)
-                        title.AddLink(entry.GithubUser.DisplayName, entry.GithubUser.GithubUrl, Online.Chat.LinkAction.External, null, null, t =>
+                        title.AddLink(entry.GithubUser.DisplayName, entry.GithubUser.GithubUrl, t =>
                         {
                             t.Font = fontMedium;
                             t.Colour = entryColour;

osu.Game/Overlays/Changelog/ChangelogSingleBuild.cs

@@ -44,7 +44,17 @@ namespace osu.Game.Overlays.Changelog
             req.Failure += _ => complete = true;
 
             // This is done on a separate thread to support cancellation below
-            Task.Run(() => req.Perform(api));
+            Task.Run(() =>
+            {
+                try
+                {
+                    req.Perform(api);
+                }
+                catch
+                {
+                    complete = true;
+                }
+            });
 
             while (!complete)
             {

osu.Game/Overlays/ChangelogOverlay.cs

@@ -170,6 +170,7 @@ namespace osu.Game.Overlays
                 var tcs = new TaskCompletionSource<bool>();
 
                 var req = new GetChangelogRequest();
+
                 req.Success += res => Schedule(() =>
                 {
                     // remap streams to builds to ensure model equality
@@ -183,8 +184,22 @@ namespace osu.Game.Overlays
 
                     tcs.SetResult(true);
                 });
-                req.Failure += _ => initialFetchTask = null;
+
-                req.Perform(API);
+                req.Failure += _ =>
+                {
+                    initialFetchTask = null;
+                    tcs.SetResult(false);
+                };
+
+                try
+                {
+                    req.Perform(API);
+                }
+                catch
+                {
+                    initialFetchTask = null;
+                    tcs.SetResult(false);
+                }
 
                 await tcs.Task;
             });

osu.Game/Overlays/NowPlayingOverlay.cs

@@ -168,12 +168,13 @@ namespace osu.Game.Overlays
                                         },
                                     }
                                 },
-                                progressBar = new ProgressBar
+                                progressBar = new HoverableProgressBar
                                 {
                                     Origin = Anchor.BottomCentre,
                                     Anchor = Anchor.BottomCentre,
-                                    Height = progress_height,
+                                    Height = progress_height / 2,
                                     FillColour = colours.Yellow,
+                                    BackgroundColour = colours.YellowDarker.Opacity(0.5f),
                                     OnSeek = musicController.SeekTo
                                 }
                             },
@@ -401,5 +402,20 @@ namespace osu.Game.Overlays
                 return base.OnDragEnd(e);
             }
         }
+
+        private class HoverableProgressBar : ProgressBar
+        {
+            protected override bool OnHover(HoverEvent e)
+            {
+                this.ResizeHeightTo(progress_height, 500, Easing.OutQuint);
+                return base.OnHover(e);
+            }
+
+            protected override void OnHoverLost(HoverLostEvent e)
+            {
+                this.ResizeHeightTo(progress_height / 2, 500, Easing.OutQuint);
+                base.OnHoverLost(e);
+            }
+        }
     }
 }

osu.Game/Overlays/Settings/SidebarButton.cs

@@ -1,7 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-using System;
 using osuTK;
 using osuTK.Graphics;
 using osu.Framework.Allocation;
@@ -9,21 +8,18 @@ using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
 using osu.Framework.Graphics.Sprites;
-using osu.Framework.Graphics.UserInterface;
-using osu.Framework.Input.Events;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Graphics.UserInterface;
 
 namespace osu.Game.Overlays.Settings
 {
-    public class SidebarButton : Button
+    public class SidebarButton : OsuButton
     {
         private readonly SpriteIcon drawableIcon;
         private readonly SpriteText headerText;
         private readonly Box selectionIndicator;
         private readonly Container text;
-        public new Action<SettingsSection> Action;
 
         private SettingsSection section;
 
@@ -62,12 +58,11 @@ namespace osu.Game.Overlays.Settings
 
         public SidebarButton()
         {
-            BackgroundColour = OsuColour.Gray(60);
-            Background.Alpha = 0;
-
             Height = Sidebar.DEFAULT_WIDTH;
             RelativeSizeAxes = Axes.X;
 
+            BackgroundColour = Color4.Black;
+
             AddRange(new Drawable[]
             {
                 text = new Container
@@ -99,7 +94,6 @@ namespace osu.Game.Overlays.Settings
                     Anchor = Anchor.CentreRight,
                     Origin = Anchor.CentreRight,
                 },
-                new HoverClickSounds(HoverSampleSet.Loud),
             });
         }
 
@@ -108,23 +102,5 @@ namespace osu.Game.Overlays.Settings
         {
             selectionIndicator.Colour = colours.Yellow;
         }
-
-        protected override bool OnClick(ClickEvent e)
-        {
-            Action?.Invoke(section);
-            return base.OnClick(e);
-        }
-
-        protected override bool OnHover(HoverEvent e)
-        {
-            Background.FadeTo(0.4f, 200);
-            return base.OnHover(e);
-        }
-
-        protected override void OnHoverLost(HoverLostEvent e)
-        {
-            Background.FadeTo(0, 200);
-            base.OnHoverLost(e);
-        }
     }
 }

osu.Game/Overlays/SettingsPanel.cs

@@ -123,9 +123,9 @@ namespace osu.Game.Overlays
                 var button = new SidebarButton
                 {
                     Section = section,
-                    Action = s =>
+                    Action = () =>
                     {
-                        SectionsContainer.ScrollTo(s);
+                        SectionsContainer.ScrollTo(section);
                         Sidebar.State = ExpandedState.Contracted;
                     },
                 };

osu.Game/Rulesets/Edit/HitObjectComposer.cs

@@ -40,6 +40,9 @@ namespace osu.Game.Rulesets.Edit
         [Resolved]
         protected IFrameBasedClock EditorClock { get; private set; }
 
+        [Resolved]
+        private IAdjustableClock adjustableClock { get; set; }
+
         [Resolved]
         private BindableBeatDivisor beatDivisor { get; set; }
 
@@ -148,7 +151,7 @@ namespace osu.Game.Rulesets.Edit
             EditorBeatmap = new EditorBeatmap<TObject>(playableBeatmap);
             EditorBeatmap.HitObjectAdded += addHitObject;
             EditorBeatmap.HitObjectRemoved += removeHitObject;
-            EditorBeatmap.StartTimeChanged += updateHitObject;
+            EditorBeatmap.StartTimeChanged += UpdateHitObject;
 
             var dependencies = new DependencyContainer(parent);
             dependencies.CacheAs<IEditorBeatmap>(EditorBeatmap);
@@ -225,11 +228,7 @@ namespace osu.Game.Rulesets.Edit
 
         private ScheduledDelegate scheduledUpdate;
 
-        private void addHitObject(HitObject hitObject) => updateHitObject(hitObject);
+        public override void UpdateHitObject(HitObject hitObject)
-
-        private void removeHitObject(HitObject hitObject) => updateHitObject(null);
-
-        private void updateHitObject([CanBeNull] HitObject hitObject)
         {
             scheduledUpdate?.Cancel();
             scheduledUpdate = Schedule(() =>
@@ -240,6 +239,10 @@ namespace osu.Game.Rulesets.Edit
             });
         }
 
+        private void addHitObject(HitObject hitObject) => UpdateHitObject(hitObject);
+
+        private void removeHitObject(HitObject hitObject) => UpdateHitObject(null);
+
         public override IEnumerable<DrawableHitObject> HitObjects => drawableRulesetWrapper.Playfield.AllHitObjects;
         public override bool CursorInPlacementArea => drawableRulesetWrapper.Playfield.ReceivePositionalInputAt(inputManager.CurrentState.Mouse.Position);
 
@@ -256,6 +259,9 @@ namespace osu.Game.Rulesets.Edit
         public void EndPlacement(HitObject hitObject)
         {
             EditorBeatmap.Add(hitObject);
+
+            adjustableClock.Seek(hitObject.StartTime);
+
             showGridFor(Enumerable.Empty<HitObject>());
         }
 
@@ -351,11 +357,22 @@ namespace osu.Game.Rulesets.Edit
         [CanBeNull]
         protected virtual DistanceSnapGrid CreateDistanceSnapGrid([NotNull] IEnumerable<HitObject> selectedHitObjects) => null;
 
+        /// <summary>
+        /// Updates a <see cref="HitObject"/>, invoking <see cref="HitObject.ApplyDefaults"/> and re-processing the beatmap.
+        /// </summary>
+        /// <param name="hitObject">The <see cref="HitObject"/> to update.</param>
+        public abstract void UpdateHitObject([CanBeNull] HitObject hitObject);
+
         public abstract (Vector2 position, double time) GetSnappedPosition(Vector2 position, double time);
+
         public abstract float GetBeatSnapDistanceAt(double referenceTime);
+
         public abstract float DurationToDistance(double referenceTime, double duration);
+
         public abstract double DistanceToDuration(double referenceTime, float distance);
+
         public abstract double GetSnappedDurationFromDistance(double referenceTime, float distance);
+
         public abstract float GetSnappedDistanceFromDistance(double referenceTime, float distance);
     }
 }

osu.Game/Rulesets/Edit/SelectionBlueprint.cs

@@ -3,10 +3,12 @@
 
 using System;
 using osu.Framework;
+using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Primitives;
 using osu.Game.Graphics.UserInterface;
+using osu.Game.Rulesets.Objects;
 using osu.Game.Rulesets.Objects.Drawables;
 using osuTK;
 
@@ -36,6 +38,9 @@ namespace osu.Game.Rulesets.Edit
         public override bool HandlePositionalInput => ShouldBeAlive;
         public override bool RemoveWhenNotAlive => false;
 
+        [Resolved(CanBeNull = true)]
+        private HitObjectComposer composer { get; set; }
+
         protected SelectionBlueprint(DrawableHitObject drawableObject)
         {
             DrawableObject = drawableObject;
@@ -77,6 +82,9 @@ namespace osu.Game.Rulesets.Edit
             }
         }
 
+        // When not selected, input is only required for the blueprint itself to receive IsHovering
+        protected override bool ShouldBeConsideredForInput(Drawable child) => State == SelectionState.Selected;
+
         /// <summary>
         /// Selects this <see cref="SelectionBlueprint"/>, causing it to become visible.
         /// </summary>
@@ -89,6 +97,11 @@ namespace osu.Game.Rulesets.Edit
 
         public bool IsSelected => State == SelectionState.Selected;
 
+        /// <summary>
+        /// Updates the <see cref="HitObject"/>, invoking <see cref="HitObject.ApplyDefaults"/> and re-processing the beatmap.
+        /// </summary>
+        protected void UpdateHitObject() => composer?.UpdateHitObject(DrawableObject.HitObject);
+
         public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => DrawableObject.ReceivePositionalInputAt(screenSpacePos);
 
         /// <summary>

osu.Game/Rulesets/UI/DrawableRuleset.cs

@@ -239,6 +239,12 @@ namespace osu.Game.Rulesets.UI
                 continueResume();
         }
 
+        public override void CancelResume()
+        {
+            // called if the user pauses while the resume overlay is open
+            ResumeOverlay?.Hide();
+        }
+
         /// <summary>
         /// Creates and adds the visual representation of a <see cref="TObject"/> to this <see cref="DrawableRuleset{TObject}"/>.
         /// </summary>
@@ -453,6 +459,11 @@ namespace osu.Game.Rulesets.UI
         /// <param name="continueResume">The action to run when resuming is to be completed.</param>
         public abstract void RequestResume(Action continueResume);
 
+        /// <summary>
+        /// Invoked when the user requests to pause while the resume overlay is active.
+        /// </summary>
+        public abstract void CancelResume();
+
         /// <summary>
         /// Create a <see cref="ScoreProcessor"/> for the associated ruleset  and link with this
         /// <see cref="DrawableRuleset"/>.

osu.Game/Rulesets/UI/Scrolling/ScrollingHitObjectContainer.cs

@@ -13,12 +13,6 @@ namespace osu.Game.Rulesets.UI.Scrolling
 {
     public class ScrollingHitObjectContainer : HitObjectContainer
     {
-        /// <summary>
-        /// A multiplier applied to the length of the scrolling area to determine a safe default lifetime end for hitobjects.
-        /// This is only used to limit the lifetime end within reason, as proper lifetime management should be implemented on hitobjects themselves.
-        /// </summary>
-        private const float safe_lifetime_end_multiplier = 2;
-
         private readonly IBindable<double> timeRange = new BindableDouble();
         private readonly IBindable<ScrollingDirection> direction = new Bindable<ScrollingDirection>();
 
@@ -123,28 +117,22 @@ namespace osu.Game.Rulesets.UI.Scrolling
             if (cached.IsValid)
                 return;
 
-            double endTime = hitObject.HitObject.StartTime;
-
             if (hitObject.HitObject is IHasEndTime e)
             {
-                endTime = e.EndTime;
-
                 switch (direction.Value)
                 {
                     case ScrollingDirection.Up:
                     case ScrollingDirection.Down:
-                        hitObject.Height = scrollingInfo.Algorithm.GetLength(hitObject.HitObject.StartTime, endTime, timeRange.Value, scrollLength);
+                        hitObject.Height = scrollingInfo.Algorithm.GetLength(hitObject.HitObject.StartTime, e.EndTime, timeRange.Value, scrollLength);
                         break;
 
                     case ScrollingDirection.Left:
                     case ScrollingDirection.Right:
-                        hitObject.Width = scrollingInfo.Algorithm.GetLength(hitObject.HitObject.StartTime, endTime, timeRange.Value, scrollLength);
+                        hitObject.Width = scrollingInfo.Algorithm.GetLength(hitObject.HitObject.StartTime, e.EndTime, timeRange.Value, scrollLength);
                         break;
                 }
             }
 
-            hitObject.LifetimeEnd = scrollingInfo.Algorithm.TimeAt(scrollLength * safe_lifetime_end_multiplier, endTime, timeRange.Value, scrollLength);
-
             foreach (var obj in hitObject.NestedHitObjects)
             {
                 computeInitialStateRecursive(obj);

osu.Game/Screens/Edit/BindableBeatDivisor.cs

@@ -29,7 +29,10 @@ namespace osu.Game.Screens.Edit
             set
             {
                 if (!VALID_DIVISORS.Contains(value))
-                    throw new ArgumentOutOfRangeException($"Provided divisor is not in {nameof(VALID_DIVISORS)}");
+                {
+                    // If it doesn't match, value will be 0, but will be clamped to the valid range via DefaultMinValue
+                    value = Array.FindLast(VALID_DIVISORS, d => d < value);
+                }
 
                 base.Value = value;
             }

osu.Game/Screens/Edit/Compose/Components/BeatDivisorControl.cs

@@ -218,12 +218,17 @@ namespace osu.Game.Screens.Edit.Compose.Components
                 }
 
                 AddInternal(marker = new Marker());
+            }
 
-                CurrentNumber.ValueChanged += div =>
+            protected override void LoadComplete()
+            {
+                base.LoadComplete();
+
+                CurrentNumber.BindValueChanged(div =>
                 {
                     marker.MoveToX(getMappedPosition(div.NewValue), 100, Easing.OutQuint);
                     marker.Flash();
-                };
+                }, true);
             }
 
             protected override void UpdateValue(float value)

osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs

@@ -11,6 +11,7 @@ using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Primitives;
 using osu.Framework.Input;
 using osu.Framework.Input.Events;
+using osu.Framework.Timing;
 using osu.Game.Rulesets.Edit;
 using osu.Game.Rulesets.Edit.Tools;
 using osu.Game.Rulesets.Objects;
@@ -30,6 +31,9 @@ namespace osu.Game.Screens.Edit.Compose.Components
         private SelectionHandler selectionHandler;
         private InputManager inputManager;
 
+        [Resolved]
+        private IAdjustableClock adjustableClock { get; set; }
+
         [Resolved]
         private HitObjectComposer composer { get; set; }
 
@@ -106,6 +110,17 @@ namespace osu.Game.Screens.Edit.Compose.Components
             return true;
         }
 
+        protected override bool OnDoubleClick(DoubleClickEvent e)
+        {
+            SelectionBlueprint clickedBlueprint = selectionHandler.SelectedBlueprints.FirstOrDefault(b => b.IsHovered);
+
+            if (clickedBlueprint == null)
+                return false;
+
+            adjustableClock?.Seek(clickedBlueprint.DrawableObject.HitObject.StartTime);
+            return true;
+        }
+
         protected override bool OnMouseUp(MouseUpEvent e)
         {
             // Special case for when a drag happened instead of a click
@@ -254,6 +269,12 @@ namespace osu.Game.Screens.Edit.Compose.Components
         {
             Debug.Assert(!clickSelectionBegan);
 
+            // If a select blueprint is already hovered, disallow changes in selection.
+            // Exception is made when holding control, as deselection should still be allowed.
+            if (!e.CurrentState.Keyboard.ControlPressed &&
+                selectionHandler.SelectedBlueprints.Any(s => s.IsHovered))
+                return;
+
             foreach (SelectionBlueprint blueprint in selectionBlueprints.AliveBlueprints)
             {
                 if (blueprint.IsHovered)
@@ -361,7 +382,8 @@ namespace osu.Game.Screens.Edit.Compose.Components
             (Vector2 snappedPosition, double snappedTime) = composer.GetSnappedPosition(ToLocalSpace(movePosition), draggedObject.StartTime);
 
             // Move the hitobjects
-            selectionHandler.HandleMovement(new MoveSelectionEvent(movementBlueprint, startPosition, ToScreenSpace(snappedPosition)));
+            if (!selectionHandler.HandleMovement(new MoveSelectionEvent(movementBlueprint, startPosition, ToScreenSpace(snappedPosition))))
+                return true;
 
             // Apply the start time at the newly snapped-to position
             double offset = snappedTime - draggedObject.StartTime;

osu.Game/Screens/Edit/Compose/Components/CircularDistanceSnapGrid.cs

@@ -12,8 +12,8 @@ namespace osu.Game.Screens.Edit.Compose.Components
 {
     public abstract class CircularDistanceSnapGrid : DistanceSnapGrid
     {
-        protected CircularDistanceSnapGrid(HitObject hitObject, Vector2 centrePosition)
+        protected CircularDistanceSnapGrid(HitObject hitObject, HitObject nextHitObject, Vector2 centrePosition)
-            : base(hitObject, centrePosition)
+            : base(hitObject, nextHitObject, centrePosition)
         {
         }
 
@@ -45,7 +45,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
             float dx = Math.Max(centrePosition.X, DrawWidth - centrePosition.X);
             float dy = Math.Max(centrePosition.Y, DrawHeight - centrePosition.Y);
             float maxDistance = new Vector2(dx, dy).Length;
-            int requiredCircles = (int)(maxDistance / DistanceSpacing);
+            int requiredCircles = Math.Min(MaxIntervals, (int)(maxDistance / DistanceSpacing));
 
             for (int i = 0; i < requiredCircles; i++)
             {
@@ -65,15 +65,17 @@ namespace osu.Game.Screens.Edit.Compose.Components
 
         public override (Vector2 position, double time) GetSnappedPosition(Vector2 position)
         {
-            Vector2 direction = position - CentrePosition;
+            if (MaxIntervals == 0)
+                return (CentrePosition, StartTime);
 
+            Vector2 direction = position - CentrePosition;
             if (direction == Vector2.Zero)
                 direction = new Vector2(0.001f, 0.001f);
 
             float distance = direction.Length;
 
             float radius = DistanceSpacing;
-            int radialCount = Math.Max(1, (int)Math.Round(distance / radius));
+            int radialCount = MathHelper.Clamp((int)Math.Round(distance / radius), 1, MaxIntervals);
 
             Vector2 normalisedDirection = direction * new Vector2(1f / distance);
             Vector2 snappedPosition = CentrePosition + normalisedDirection * radialCount * radius;

osu.Game/Screens/Edit/Compose/Components/DistanceSnapGrid.cs

@@ -1,6 +1,7 @@
 // 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 JetBrains.Annotations;
 using osu.Framework.Allocation;
 using osu.Framework.Caching;
 using osu.Framework.Graphics;
@@ -29,6 +30,11 @@ namespace osu.Game.Screens.Edit.Compose.Components
         /// </summary>
         protected double StartTime { get; private set; }
 
+        /// <summary>
+        /// The maximum number of distance snapping intervals allowed.
+        /// </summary>
+        protected int MaxIntervals { get; private set; }
+
         /// <summary>
         /// The position which the grid is centred on.
         /// The first beat snapping tick is located at <see cref="CentrePosition"/> + <see cref="DistanceSpacing"/> in the desired direction.
@@ -49,12 +55,15 @@ namespace osu.Game.Screens.Edit.Compose.Components
 
         private readonly Cached gridCache = new Cached();
         private readonly HitObject hitObject;
+        private readonly HitObject nextHitObject;
 
-        protected DistanceSnapGrid(HitObject hitObject, Vector2 centrePosition)
+        protected DistanceSnapGrid(HitObject hitObject, [CanBeNull] HitObject nextHitObject, Vector2 centrePosition)
         {
             this.hitObject = hitObject;
+            this.nextHitObject = nextHitObject;
 
             CentrePosition = centrePosition;
+
             RelativeSizeAxes = Axes.Both;
         }
 
@@ -74,6 +83,16 @@ namespace osu.Game.Screens.Edit.Compose.Components
         private void updateSpacing()
         {
             DistanceSpacing = SnapProvider.GetBeatSnapDistanceAt(StartTime);
+
+            if (nextHitObject == null)
+                MaxIntervals = int.MaxValue;
+            else
+            {
+                // +1 is added since a snapped hitobject may have its start time slightly less than the snapped time due to floating point errors
+                double maxDuration = nextHitObject.StartTime - StartTime + 1;
+                MaxIntervals = (int)(maxDuration / SnapProvider.DistanceToDuration(StartTime, DistanceSpacing));
+            }
+
             gridCache.Invalidate();
         }
 

osu.Game/Screens/Edit/Compose/Components/SelectionHandler.cs

@@ -8,21 +8,21 @@ using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
-using osu.Framework.Input.Events;
+using osu.Framework.Input;
+using osu.Framework.Input.Bindings;
 using osu.Framework.Input.States;
 using osu.Game.Graphics;
 using osu.Game.Rulesets.Edit;
 using osu.Game.Rulesets.Objects;
 using osu.Game.Rulesets.Objects.Drawables;
 using osuTK;
-using osuTK.Input;
 
 namespace osu.Game.Screens.Edit.Compose.Components
 {
     /// <summary>
     /// A component which outlines <see cref="DrawableHitObject"/>s and handles movement of selections.
     /// </summary>
-    public class SelectionHandler : CompositeDrawable
+    public class SelectionHandler : CompositeDrawable, IKeyBindingHandler<PlatformAction>
     {
         public const float BORDER_RADIUS = 2;
 
@@ -68,26 +68,24 @@ namespace osu.Game.Screens.Edit.Compose.Components
         /// Handles the selected <see cref="DrawableHitObject"/>s being moved.
         /// </summary>
         /// <param name="moveEvent">The move event.</param>
-        public virtual void HandleMovement(MoveSelectionEvent moveEvent)
+        /// <returns>Whether any <see cref="DrawableHitObject"/>s were moved.</returns>
-        {
+        public virtual bool HandleMovement(MoveSelectionEvent moveEvent) => false;
-        }
 
-        protected override bool OnKeyDown(KeyDownEvent e)
+        public bool OnPressed(PlatformAction action)
         {
-            if (e.Repeat)
+            switch (action.ActionMethod)
-                return base.OnKeyDown(e);
-
-            switch (e.Key)
             {
-                case Key.Delete:
+                case PlatformActionMethod.Delete:
                     foreach (var h in selectedBlueprints.ToList())
                         placementHandler.Delete(h.DrawableObject.HitObject);
                     return true;
             }
 
-            return base.OnKeyDown(e);
+            return false;
         }
 
+        public bool OnReleased(PlatformAction action) => action.ActionMethod == PlatformActionMethod.Delete;
+
         #endregion
 
         #region Selection Handling

osu.Game/Screens/Edit/Editor.cs

@@ -64,7 +64,10 @@ namespace osu.Game.Screens.Edit
         {
             this.host = host;
 
-            // TODO: should probably be done at a DrawableRuleset level to share logic with Player.
+            beatDivisor.Value = Beatmap.Value.BeatmapInfo.BeatDivisor;
+            beatDivisor.BindValueChanged(divisor => Beatmap.Value.BeatmapInfo.BeatDivisor = divisor.NewValue);
+
+            // Todo: should probably be done at a DrawableRuleset level to share logic with Player.
             var sourceClock = (IAdjustableClock)Beatmap.Value.Track ?? new StopwatchClock();
             clock = new EditorClock(Beatmap.Value, beatDivisor) { IsCoupled = false };
             clock.ChangeSource(sourceClock);

osu.Game/Screens/Edit/Timing/ControlPointSettings.cs

@@ -0,0 +1,50 @@
+// 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 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.Containers;
+
+namespace osu.Game.Screens.Edit.Timing
+{
+    public class ControlPointSettings : CompositeDrawable
+    {
+        [BackgroundDependencyLoader]
+        private void load(OsuColour colours)
+        {
+            RelativeSizeAxes = Axes.Both;
+
+            InternalChildren = new Drawable[]
+            {
+                new Box
+                {
+                    Colour = colours.Gray3,
+                    RelativeSizeAxes = Axes.Both,
+                },
+                new OsuScrollContainer
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    Child = new FillFlowContainer
+                    {
+                        RelativeSizeAxes = Axes.X,
+                        AutoSizeAxes = Axes.Y,
+                        Direction = FillDirection.Vertical,
+                        Children = createSections()
+                    },
+                }
+            };
+        }
+
+        private IReadOnlyList<Drawable> createSections() => new Drawable[]
+        {
+            new TimingSection(),
+            new DifficultySection(),
+            new SampleSection(),
+            new EffectSection(),
+        };
+    }
+}

osu.Game/Screens/Edit/Timing/ControlPointTable.cs

@@ -0,0 +1,247 @@
+// 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 osu.Framework.Allocation;
+using osu.Framework.Bindables;
+using osu.Framework.Extensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Framework.Input.Events;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Graphics;
+using osu.Game.Graphics.Containers;
+using osu.Game.Graphics.Sprites;
+using osuTK;
+using osuTK.Graphics;
+
+namespace osu.Game.Screens.Edit.Timing
+{
+    public class ControlPointTable : TableContainer
+    {
+        private const float horizontal_inset = 20;
+        private const float row_height = 25;
+        private const int text_size = 14;
+
+        private readonly FillFlowContainer backgroundFlow;
+
+        [Resolved]
+        private Bindable<ControlPointGroup> selectedGroup { get; set; }
+
+        public ControlPointTable()
+        {
+            RelativeSizeAxes = Axes.X;
+            AutoSizeAxes = Axes.Y;
+
+            Padding = new MarginPadding { Horizontal = horizontal_inset };
+            RowSize = new Dimension(GridSizeMode.Absolute, row_height);
+
+            AddInternal(backgroundFlow = new FillFlowContainer
+            {
+                RelativeSizeAxes = Axes.Both,
+                Depth = 1f,
+                Padding = new MarginPadding { Horizontal = -horizontal_inset },
+                Margin = new MarginPadding { Top = row_height }
+            });
+        }
+
+        public IEnumerable<ControlPointGroup> ControlGroups
+        {
+            set
+            {
+                Content = null;
+                backgroundFlow.Clear();
+
+                if (value?.Any() != true)
+                    return;
+
+                foreach (var group in value)
+                {
+                    backgroundFlow.Add(new RowBackground(group));
+                }
+
+                Columns = createHeaders();
+                Content = value.Select((g, i) => createContent(i, g)).ToArray().ToRectangular();
+            }
+        }
+
+        private TableColumn[] createHeaders()
+        {
+            var columns = new List<TableColumn>
+            {
+                new TableColumn(string.Empty, Anchor.Centre, new Dimension(GridSizeMode.AutoSize)),
+                new TableColumn("Time", Anchor.Centre, new Dimension(GridSizeMode.AutoSize)),
+                new TableColumn("Attributes", Anchor.Centre),
+            };
+
+            return columns.ToArray();
+        }
+
+        private Drawable[] createContent(int index, ControlPointGroup group) => new Drawable[]
+        {
+            new OsuSpriteText
+            {
+                Text = $"#{index + 1}",
+                Font = OsuFont.GetFont(size: text_size, weight: FontWeight.Bold),
+                Margin = new MarginPadding(10)
+            },
+            new OsuSpriteText
+            {
+                Text = $"{group.Time:n0}ms",
+                Font = OsuFont.GetFont(size: text_size, weight: FontWeight.Bold)
+            },
+            new ControlGroupAttributes(group),
+        };
+
+        private class ControlGroupAttributes : CompositeDrawable
+        {
+            private readonly IBindableList<ControlPoint> controlPoints;
+
+            private readonly FillFlowContainer fill;
+
+            public ControlGroupAttributes(ControlPointGroup group)
+            {
+                InternalChild = fill = new FillFlowContainer
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    Direction = FillDirection.Horizontal,
+                    Padding = new MarginPadding(10),
+                    Spacing = new Vector2(2)
+                };
+
+                controlPoints = group.ControlPoints.GetBoundCopy();
+                controlPoints.ItemsAdded += _ => createChildren();
+                controlPoints.ItemsRemoved += _ => createChildren();
+
+                createChildren();
+            }
+
+            private void createChildren()
+            {
+                fill.ChildrenEnumerable = controlPoints.Select(createAttribute).Where(c => c != null);
+            }
+
+            private Drawable createAttribute(ControlPoint controlPoint)
+            {
+                switch (controlPoint)
+                {
+                    case TimingControlPoint timing:
+                        return new RowAttribute("timing", () => $"{60000 / timing.BeatLength:n1}bpm {timing.TimeSignature}");
+
+                    case DifficultyControlPoint difficulty:
+
+                        return new RowAttribute("difficulty", () => $"{difficulty.SpeedMultiplier:n2}x");
+
+                    case EffectControlPoint effect:
+                        return new RowAttribute("effect", () => $"{(effect.KiaiMode ? "Kiai " : "")}{(effect.OmitFirstBarLine ? "NoBarLine " : "")}");
+
+                    case SampleControlPoint sample:
+                        return new RowAttribute("sample", () => $"{sample.SampleBank} {sample.SampleVolume}%");
+                }
+
+                return null;
+            }
+        }
+
+        protected override Drawable CreateHeader(int index, TableColumn column) => new HeaderText(column?.Header ?? string.Empty);
+
+        private class HeaderText : OsuSpriteText
+        {
+            public HeaderText(string text)
+            {
+                Text = text.ToUpper();
+                Font = OsuFont.GetFont(size: 12, weight: FontWeight.Black);
+            }
+        }
+
+        public class RowBackground : OsuClickableContainer
+        {
+            private readonly ControlPointGroup controlGroup;
+            private const int fade_duration = 100;
+
+            private readonly Box hoveredBackground;
+
+            [Resolved]
+            private Bindable<ControlPointGroup> selectedGroup { get; set; }
+
+            public RowBackground(ControlPointGroup controlGroup)
+            {
+                this.controlGroup = controlGroup;
+                RelativeSizeAxes = Axes.X;
+                Height = 25;
+
+                AlwaysPresent = true;
+
+                CornerRadius = 3;
+                Masking = true;
+
+                Children = new Drawable[]
+                {
+                    hoveredBackground = new Box
+                    {
+                        RelativeSizeAxes = Axes.Both,
+                        Alpha = 0,
+                    },
+                };
+
+                Action = () => selectedGroup.Value = controlGroup;
+            }
+
+            private Color4 colourHover;
+            private Color4 colourSelected;
+
+            [BackgroundDependencyLoader]
+            private void load(OsuColour colours)
+            {
+                hoveredBackground.Colour = colourHover = colours.BlueDarker;
+                colourSelected = colours.YellowDarker;
+            }
+
+            protected override void LoadComplete()
+            {
+                base.LoadComplete();
+
+                selectedGroup.BindValueChanged(group => { Selected = controlGroup == group.NewValue; }, true);
+            }
+
+            private bool selected;
+
+            protected bool Selected
+            {
+                get => selected;
+                set
+                {
+                    if (value == selected)
+                        return;
+
+                    selected = value;
+                    updateState();
+                }
+            }
+
+            protected override bool OnHover(HoverEvent e)
+            {
+                updateState();
+                return base.OnHover(e);
+            }
+
+            protected override void OnHoverLost(HoverLostEvent e)
+            {
+                updateState();
+                base.OnHoverLost(e);
+            }
+
+            private void updateState()
+            {
+                hoveredBackground.FadeColour(selected ? colourSelected : colourHover, 450, Easing.OutQuint);
+
+                if (selected || IsHovered)
+                    hoveredBackground.FadeIn(fade_duration, Easing.OutQuint);
+                else
+                    hoveredBackground.FadeOut(fade_duration, Easing.OutQuint);
+            }
+        }
+    }
+}

osu.Game/Screens/Edit/Timing/DifficultySection.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 osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Bindables;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Overlays.Settings;
+
+namespace osu.Game.Screens.Edit.Timing
+{
+    internal class DifficultySection : Section<DifficultyControlPoint>
+    {
+        private SettingsSlider<double> multiplier;
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            Flow.AddRange(new[]
+            {
+                multiplier = new SettingsSlider<double>
+                {
+                    LabelText = "Speed Multiplier",
+                    Bindable = new DifficultyControlPoint().SpeedMultiplierBindable,
+                    RelativeSizeAxes = Axes.X,
+                }
+            });
+        }
+
+        protected override void OnControlPointChanged(ValueChangedEvent<DifficultyControlPoint> point)
+        {
+            if (point.NewValue != null)
+            {
+                multiplier.Bindable = point.NewValue.SpeedMultiplierBindable;
+            }
+        }
+
+        protected override DifficultyControlPoint CreatePoint()
+        {
+            var reference = Beatmap.Value.Beatmap.ControlPointInfo.DifficultyPointAt(SelectedGroup.Value.Time);
+
+            return new DifficultyControlPoint
+            {
+                SpeedMultiplier = reference.SpeedMultiplier,
+            };
+        }
+    }
+}

osu.Game/Screens/Edit/Timing/EffectSection.cs

@@ -0,0 +1,46 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Allocation;
+using osu.Framework.Bindables;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Graphics.UserInterfaceV2;
+
+namespace osu.Game.Screens.Edit.Timing
+{
+    internal class EffectSection : Section<EffectControlPoint>
+    {
+        private LabelledSwitchButton kiai;
+        private LabelledSwitchButton omitBarLine;
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            Flow.AddRange(new[]
+            {
+                kiai = new LabelledSwitchButton { Label = "Kiai Time" },
+                omitBarLine = new LabelledSwitchButton { Label = "Skip Bar Line" },
+            });
+        }
+
+        protected override void OnControlPointChanged(ValueChangedEvent<EffectControlPoint> point)
+        {
+            if (point.NewValue != null)
+            {
+                kiai.Current = point.NewValue.KiaiModeBindable;
+                omitBarLine.Current = point.NewValue.OmitFirstBarLineBindable;
+            }
+        }
+
+        protected override EffectControlPoint CreatePoint()
+        {
+            var reference = Beatmap.Value.Beatmap.ControlPointInfo.EffectPointAt(SelectedGroup.Value.Time);
+
+            return new EffectControlPoint
+            {
+                KiaiMode = reference.KiaiMode,
+                OmitFirstBarLine = reference.OmitFirstBarLine
+            };
+        }
+    }
+}

osu.Game/Screens/Edit/Timing/RowAttribute.cs

@@ -0,0 +1,60 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System;
+using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Cursor;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Graphics;
+using osu.Game.Graphics.Sprites;
+
+namespace osu.Game.Screens.Edit.Timing
+{
+    public class RowAttribute : CompositeDrawable, IHasTooltip
+    {
+        private readonly string header;
+        private readonly Func<string> content;
+
+        public RowAttribute(string header, Func<string> content)
+        {
+            this.header = header;
+            this.content = content;
+        }
+
+        [BackgroundDependencyLoader]
+        private void load(OsuColour colours)
+        {
+            AutoSizeAxes = Axes.X;
+
+            Height = 20;
+
+            Anchor = Anchor.CentreLeft;
+            Origin = Anchor.CentreLeft;
+
+            Masking = true;
+            CornerRadius = 5;
+
+            InternalChildren = new Drawable[]
+            {
+                new Box
+                {
+                    Colour = colours.Yellow,
+                    RelativeSizeAxes = Axes.Both,
+                },
+                new OsuSpriteText
+                {
+                    Padding = new MarginPadding(2),
+                    Anchor = Anchor.Centre,
+                    Origin = Anchor.Centre,
+                    Font = OsuFont.Default.With(weight: FontWeight.SemiBold, size: 12),
+                    Text = header,
+                    Colour = colours.Gray3
+                },
+            };
+        }
+
+        public string TooltipText => content();
+    }
+}

osu.Game/Screens/Edit/Timing/SampleSection.cs

@@ -0,0 +1,55 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Bindables;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Graphics.UserInterfaceV2;
+using osu.Game.Overlays.Settings;
+
+namespace osu.Game.Screens.Edit.Timing
+{
+    internal class SampleSection : Section<SampleControlPoint>
+    {
+        private LabelledTextBox bank;
+        private SettingsSlider<int> volume;
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            Flow.AddRange(new Drawable[]
+            {
+                bank = new LabelledTextBox
+                {
+                    Label = "Bank Name",
+                },
+                volume = new SettingsSlider<int>
+                {
+                    Bindable = new SampleControlPoint().SampleVolumeBindable,
+                    LabelText = "Volume",
+                }
+            });
+        }
+
+        protected override void OnControlPointChanged(ValueChangedEvent<SampleControlPoint> point)
+        {
+            if (point.NewValue != null)
+            {
+                bank.Current = point.NewValue.SampleBankBindable;
+                volume.Bindable = point.NewValue.SampleVolumeBindable;
+            }
+        }
+
+        protected override SampleControlPoint CreatePoint()
+        {
+            var reference = Beatmap.Value.Beatmap.ControlPointInfo.SamplePointAt(SelectedGroup.Value.Time);
+
+            return new SampleControlPoint
+            {
+                SampleBank = reference.SampleBank,
+                SampleVolume = reference.SampleVolume,
+            };
+        }
+    }
+}

osu.Game/Screens/Edit/Timing/Section.cs

@@ -0,0 +1,130 @@
+// 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 osu.Framework.Allocation;
+using osu.Framework.Bindables;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Beatmaps;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Graphics;
+using osu.Game.Graphics.UserInterface;
+
+namespace osu.Game.Screens.Edit.Timing
+{
+    internal abstract class Section<T> : CompositeDrawable
+        where T : ControlPoint
+    {
+        private OsuCheckbox checkbox;
+        private Container content;
+
+        protected FillFlowContainer Flow { get; private set; }
+
+        protected Bindable<T> ControlPoint { get; } = new Bindable<T>();
+
+        private const float header_height = 20;
+
+        [Resolved]
+        protected IBindable<WorkingBeatmap> Beatmap { get; private set; }
+
+        [Resolved]
+        protected Bindable<ControlPointGroup> SelectedGroup { get; private set; }
+
+        [BackgroundDependencyLoader]
+        private void load(OsuColour colours)
+        {
+            RelativeSizeAxes = Axes.X;
+            AutoSizeDuration = 200;
+            AutoSizeEasing = Easing.OutQuint;
+            AutoSizeAxes = Axes.Y;
+
+            Masking = true;
+
+            InternalChildren = new Drawable[]
+            {
+                new Box
+                {
+                    Colour = colours.Gray1,
+                    RelativeSizeAxes = Axes.Both,
+                },
+                new Container
+                {
+                    RelativeSizeAxes = Axes.X,
+                    Height = header_height,
+                    Children = new Drawable[]
+                    {
+                        checkbox = new OsuCheckbox
+                        {
+                            LabelText = typeof(T).Name.Replace(typeof(ControlPoint).Name, string.Empty)
+                        }
+                    }
+                },
+                content = new Container
+                {
+                    Y = header_height,
+                    RelativeSizeAxes = Axes.X,
+                    AutoSizeAxes = Axes.Y,
+                    Children = new Drawable[]
+                    {
+                        new Box
+                        {
+                            Colour = colours.Gray2,
+                            RelativeSizeAxes = Axes.Both,
+                        },
+                        Flow = new FillFlowContainer
+                        {
+                            Padding = new MarginPadding(10),
+                            RelativeSizeAxes = Axes.X,
+                            AutoSizeAxes = Axes.Y,
+                            Direction = FillDirection.Vertical,
+                        },
+                    }
+                }
+            };
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            checkbox.Current.BindValueChanged(selected =>
+            {
+                if (selected.NewValue)
+                {
+                    if (SelectedGroup.Value == null)
+                    {
+                        checkbox.Current.Value = false;
+                        return;
+                    }
+
+                    if (ControlPoint.Value == null)
+                        SelectedGroup.Value.Add(ControlPoint.Value = CreatePoint());
+                }
+                else
+                {
+                    if (ControlPoint.Value != null)
+                    {
+                        SelectedGroup.Value.Remove(ControlPoint.Value);
+                        ControlPoint.Value = null;
+                    }
+                }
+
+                content.BypassAutoSizeAxes = selected.NewValue ? Axes.None : Axes.Y;
+            }, true);
+
+            SelectedGroup.BindValueChanged(points =>
+            {
+                ControlPoint.Value = points.NewValue?.ControlPoints.OfType<T>().FirstOrDefault();
+                checkbox.Current.Value = ControlPoint.Value != null;
+            }, true);
+
+            ControlPoint.BindValueChanged(OnControlPointChanged, true);
+        }
+
+        protected abstract void OnControlPointChanged(ValueChangedEvent<T> point);
+
+        protected abstract T CreatePoint();
+    }
+}

osu.Game/Screens/Edit/Timing/TimingScreen.cs

@@ -1,13 +1,151 @@
 // 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 osu.Framework.Allocation;
+using osu.Framework.Bindables;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Framework.Timing;
+using osu.Game.Beatmaps;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Graphics;
+using osu.Game.Graphics.Containers;
+using osu.Game.Graphics.UserInterface;
+using osuTK;
+
 namespace osu.Game.Screens.Edit.Timing
 {
-    public class TimingScreen : EditorScreen
+    public class TimingScreen : EditorScreenWithTimeline
     {
-        public TimingScreen()
+        [Cached]
+        private Bindable<ControlPointGroup> selectedGroup = new Bindable<ControlPointGroup>();
+
+        [Resolved]
+        private IAdjustableClock clock { get; set; }
+
+        protected override Drawable CreateMainContent() => new GridContainer
         {
-            Child = new ScreenWhiteBox.UnderConstructionMessage("Timing mode");
+            RelativeSizeAxes = Axes.Both,
+            ColumnDimensions = new[]
+            {
+                new Dimension(),
+                new Dimension(GridSizeMode.Absolute, 200),
+            },
+            Content = new[]
+            {
+                new Drawable[]
+                {
+                    new ControlPointList(),
+                    new ControlPointSettings(),
+                },
+            }
+        };
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            selectedGroup.BindValueChanged(selected =>
+            {
+                if (selected.NewValue != null)
+                    clock.Seek(selected.NewValue.Time);
+            });
+        }
+
+        public class ControlPointList : CompositeDrawable
+        {
+            private OsuButton deleteButton;
+            private ControlPointTable table;
+
+            private IBindableList<ControlPointGroup> controlGroups;
+
+            [Resolved]
+            private IFrameBasedClock clock { get; set; }
+
+            [Resolved]
+            protected IBindable<WorkingBeatmap> Beatmap { get; private set; }
+
+            [Resolved]
+            private Bindable<ControlPointGroup> selectedGroup { get; set; }
+
+            [BackgroundDependencyLoader]
+            private void load(OsuColour colours)
+            {
+                RelativeSizeAxes = Axes.Both;
+
+                InternalChildren = new Drawable[]
+                {
+                    new Box
+                    {
+                        Colour = colours.Gray0,
+                        RelativeSizeAxes = Axes.Both,
+                    },
+                    new OsuScrollContainer
+                    {
+                        RelativeSizeAxes = Axes.Both,
+                        Child = table = new ControlPointTable(),
+                    },
+                    new FillFlowContainer
+                    {
+                        AutoSizeAxes = Axes.Both,
+                        Anchor = Anchor.BottomRight,
+                        Origin = Anchor.BottomRight,
+                        Direction = FillDirection.Horizontal,
+                        Margin = new MarginPadding(10),
+                        Spacing = new Vector2(5),
+                        Children = new Drawable[]
+                        {
+                            deleteButton = new OsuButton
+                            {
+                                Text = "-",
+                                Size = new Vector2(30, 30),
+                                Action = delete,
+                                Anchor = Anchor.BottomRight,
+                                Origin = Anchor.BottomRight,
+                            },
+                            new OsuButton
+                            {
+                                Text = "+",
+                                Action = addNew,
+                                Size = new Vector2(30, 30),
+                                Anchor = Anchor.BottomRight,
+                                Origin = Anchor.BottomRight,
+                            },
+                        }
+                    },
+                };
+            }
+
+            protected override void LoadComplete()
+            {
+                base.LoadComplete();
+
+                selectedGroup.BindValueChanged(selected => { deleteButton.Enabled.Value = selected.NewValue != null; }, true);
+
+                controlGroups = Beatmap.Value.Beatmap.ControlPointInfo.Groups.GetBoundCopy();
+                controlGroups.ItemsAdded += _ => createContent();
+                controlGroups.ItemsRemoved += _ => createContent();
+                createContent();
+            }
+
+            private void createContent() => table.ControlGroups = controlGroups;
+
+            private void delete()
+            {
+                if (selectedGroup.Value == null)
+                    return;
+
+                Beatmap.Value.Beatmap.ControlPointInfo.RemoveGroup(selectedGroup.Value);
+
+                selectedGroup.Value = Beatmap.Value.Beatmap.ControlPointInfo.Groups.FirstOrDefault(g => g.Time >= clock.CurrentTime);
+            }
+
+            private void addNew()
+            {
+                selectedGroup.Value = Beatmap.Value.Beatmap.ControlPointInfo.GroupAt(clock.CurrentTime, true);
+            }
         }
     }
 }

osu.Game/Screens/Edit/Timing/TimingSection.cs

@@ -0,0 +1,85 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Allocation;
+using osu.Framework.Bindables;
+using osu.Framework.Graphics;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Beatmaps.Timing;
+using osu.Game.Overlays.Settings;
+
+namespace osu.Game.Screens.Edit.Timing
+{
+    internal class TimingSection : Section<TimingControlPoint>
+    {
+        private SettingsSlider<double> bpm;
+        private SettingsEnumDropdown<TimeSignatures> timeSignature;
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            Flow.AddRange(new Drawable[]
+            {
+                bpm = new BPMSlider
+                {
+                    Bindable = new TimingControlPoint().BeatLengthBindable,
+                    LabelText = "BPM",
+                },
+                timeSignature = new SettingsEnumDropdown<TimeSignatures>
+                {
+                    LabelText = "Time Signature"
+                },
+            });
+        }
+
+        protected override void OnControlPointChanged(ValueChangedEvent<TimingControlPoint> point)
+        {
+            if (point.NewValue != null)
+            {
+                bpm.Bindable = point.NewValue.BeatLengthBindable;
+                timeSignature.Bindable = point.NewValue.TimeSignatureBindable;
+            }
+        }
+
+        protected override TimingControlPoint CreatePoint()
+        {
+            var reference = Beatmap.Value.Beatmap.ControlPointInfo.TimingPointAt(SelectedGroup.Value.Time);
+
+            return new TimingControlPoint
+            {
+                BeatLength = reference.BeatLength,
+                TimeSignature = reference.TimeSignature
+            };
+        }
+
+        private class BPMSlider : SettingsSlider<double>
+        {
+            private readonly BindableDouble beatLengthBindable = new BindableDouble();
+
+            private BindableDouble bpmBindable;
+
+            public override Bindable<double> Bindable
+            {
+                get => base.Bindable;
+                set
+                {
+                    // incoming will be beatlength
+
+                    beatLengthBindable.UnbindBindings();
+                    beatLengthBindable.BindTo(value);
+
+                    base.Bindable = bpmBindable = new BindableDouble(beatLengthToBpm(beatLengthBindable.Value))
+                    {
+                        MinValue = beatLengthToBpm(beatLengthBindable.MaxValue),
+                        MaxValue = beatLengthToBpm(beatLengthBindable.MinValue),
+                        Default = beatLengthToBpm(beatLengthBindable.Default),
+                    };
+
+                    bpmBindable.BindValueChanged(bpm => beatLengthBindable.Value = beatLengthToBpm(bpm.NewValue));
+                }
+            }
+
+            private double beatLengthToBpm(double beatLength) => 60000 / beatLength;
+        }
+    }
+}

osu.Game/Screens/Multi/Components/BeatmapTitle.cs

@@ -81,7 +81,7 @@ namespace osu.Game.Screens.Multi.Components
                         Text = new LocalisedString((beatmap.Metadata.TitleUnicode, beatmap.Metadata.Title)),
                         Font = OsuFont.GetFont(size: TextSize),
                     }
-                }, null, LinkAction.OpenBeatmap, beatmap.OnlineBeatmapID.ToString(), "Open beatmap");
+                }, LinkAction.OpenBeatmap, beatmap.OnlineBeatmapID.ToString(), "Open beatmap");
             }
         }
     }

osu.Game/Screens/Multi/Multiplayer.cs

@@ -167,14 +167,17 @@ namespace osu.Game.Screens.Multi
         public void APIStateChanged(IAPIProvider api, APIState state)
         {
             if (state != APIState.Online)
-                forcefullyExit();
+                Schedule(forcefullyExit);
         }
 
         private void forcefullyExit()
         {
             // This is temporary since we don't currently have a way to force screens to be exited
             if (this.IsCurrentScreen())
-                this.Exit();
+            {
+                while (this.IsCurrentScreen())
+                    this.Exit();
+            }
             else
             {
                 this.MakeCurrent();
@@ -212,6 +215,8 @@ namespace osu.Game.Screens.Multi
 
         public override bool OnExiting(IScreen next)
         {
+            roomManager.PartRoom();
+
             if (screenStack.CurrentScreen != null && !(screenStack.CurrentScreen is LoungeSubScreen))
             {
                 screenStack.Exit();

osu.Game/Screens/Multi/RoomManager.cs

@@ -87,9 +87,8 @@ namespace osu.Game.Screens.Multi
         public void JoinRoom(Room room, Action<Room> onSuccess = null, Action<string> onError = null)
         {
             currentJoinRoomRequest?.Cancel();
-            currentJoinRoomRequest = null;
-
             currentJoinRoomRequest = new JoinRoomRequest(room, api.LocalUser.Value);
+
             currentJoinRoomRequest.Success += () =>
             {
                 joinedRoom = room;
@@ -98,7 +97,8 @@ namespace osu.Game.Screens.Multi
 
             currentJoinRoomRequest.Failure += exception =>
             {
-                Logger.Log($"Failed to join room: {exception}", level: LogLevel.Important);
+                if (!(exception is OperationCanceledException))
+                    Logger.Log($"Failed to join room: {exception}", level: LogLevel.Important);
                 onError?.Invoke(exception.ToString());
             };
 
@@ -107,6 +107,8 @@ namespace osu.Game.Screens.Multi
 
         public void PartRoom()
         {
+            currentJoinRoomRequest?.Cancel();
+
             if (joinedRoom == null)
                 return;
 

osu.Game/Screens/Play/GameplayClockContainer.cs

@@ -8,6 +8,7 @@ using System.Threading.Tasks;
 using osu.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Audio;
+using osu.Framework.Audio.Track;
 using osu.Framework.Bindables;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
@@ -29,7 +30,7 @@ namespace osu.Game.Screens.Play
         /// <summary>
         /// The original source (usually a <see cref="WorkingBeatmap"/>'s track).
         /// </summary>
-        private readonly IAdjustableClock sourceClock;
+        private IAdjustableClock sourceClock;
 
         public readonly BindableBool IsPaused = new BindableBool();
 
@@ -153,10 +154,18 @@ namespace osu.Game.Screens.Play
             IsPaused.Value = true;
         }
 
-        public void ResetLocalAdjustments()
+        /// <summary>
+        /// Changes the backing clock to avoid using the originally provided beatmap's track.
+        /// </summary>
+        public void StopUsingBeatmapClock()
         {
-            // In the case of replays, we may have changed the playback rate.
+            if (sourceClock != beatmap.Track)
-            UserPlaybackRate.Value = 1;
+                return;
+
+            removeSourceClockAdjustments();
+
+            sourceClock = new TrackVirtual(beatmap.Track.Length);
+            adjustableClock.ChangeSource(sourceClock);
         }
 
         protected override void Update()
@@ -185,6 +194,14 @@ namespace osu.Game.Screens.Play
         protected override void Dispose(bool isDisposing)
         {
             base.Dispose(isDisposing);
+
+            removeSourceClockAdjustments();
+            sourceClock = null;
+        }
+
+        private void removeSourceClockAdjustments()
+        {
+            sourceClock.ResetSpeedAdjustments();
             (sourceClock as IAdjustableAudioComponent)?.RemoveAdjustment(AdjustableProperty.Frequency, pauseFreqAdjust);
         }
     }

osu.Game/Screens/Play/Player.cs

@@ -30,6 +30,7 @@ using osu.Game.Users;
 
 namespace osu.Game.Screens.Play
 {
+    [Cached]
     public class Player : ScreenWithBeatmapBackground
     {
         public override bool AllowBackButton => false; // handled by HoldForMenuButton
@@ -311,14 +312,19 @@ namespace osu.Game.Screens.Play
                 this.Exit();
         }
 
+        /// <summary>
+        /// Restart gameplay via a parent <see cref="PlayerLoader"/>.
+        /// <remarks>This can be called from a child screen in order to trigger the restart process.</remarks>
+        /// </summary>
         public void Restart()
         {
-            if (!this.IsCurrentScreen()) return;
-
             sampleRestart?.Play();
-
             RestartRequested?.Invoke();
-            performImmediateExit();
+
+            if (this.IsCurrentScreen())
+                performImmediateExit();
+            else
+                this.MakeCurrent();
         }
 
         private ScheduledDelegate completionProgressDelegate;
@@ -443,7 +449,12 @@ namespace osu.Game.Screens.Play
         {
             if (!canPause) return;
 
-            IsResuming = false;
+            if (IsResuming)
+            {
+                DrawableRuleset.CancelResume();
+                IsResuming = false;
+            }
+
             GameplayClockContainer.Stop();
             PauseOverlay.Show();
             lastPauseActionTime = GameplayClockContainer.GameplayClock.CurrentTime;
@@ -525,7 +536,9 @@ namespace osu.Game.Screens.Play
                     return true;
             }
 
-            GameplayClockContainer.ResetLocalAdjustments();
+            // GameplayClockContainer performs seeks / start / stop operations on the beatmap's track.
+            // as we are no longer the current screen, we cannot guarantee the track is still usable.
+            GameplayClockContainer.StopUsingBeatmapClock();
 
             fadeOut();
             return base.OnExiting(next);

osu.Game/Screens/Ranking/Pages/ReplayDownloadButton.cs

@@ -4,12 +4,13 @@
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Game.Graphics.Containers;
-using osu.Game.Online;
-using osu.Game.Scoring;
-using osu.Game.Online.API.Requests.Responses;
 using osu.Game.Graphics.UserInterface;
+using osu.Game.Online;
+using osu.Game.Online.API.Requests.Responses;
+using osu.Game.Scoring;
+using osuTK;
 
-namespace osu.Game.Screens.Play
+namespace osu.Game.Screens.Ranking.Pages
 {
     public class ReplayDownloadButton : DownloadTrackingComposite<ScoreInfo, ScoreManager>
     {
@@ -33,6 +34,7 @@ namespace osu.Game.Screens.Play
         public ReplayDownloadButton(ScoreInfo score)
             : base(score)
         {
+            Size = new Vector2(50, 30);
         }
 
         [BackgroundDependencyLoader(true)]