Merge remote-tracking branch 'upstream/master' into android

.vscode/tasks.json

@@ -70,7 +70,8 @@
             "type": "shell",
             "command": "dotnet",
             "args": [
-                "restore"
+                "restore",
+                "osu.sln"
             ],
             "problemMatcher": []
         }

README.md

@@ -75,7 +75,7 @@ Sometimes it may be necessary to cross-test changes in [osu-resources](https://g
 
 ## Code analysis
 
-Code analysis can be run with `powershell ./build.ps1` or `build.sh`. This is currently only supported under windows due to [resharper cli shortcomings](https://youtrack.jetbrains.com/issue/RSRP-410004). Alternative, you can install resharper or use rider to get inline support in your IDE of choice.
+Code analysis can be run with `powershell ./build.ps1` or `build.sh`. This is currently only supported under windows due to [resharper cli shortcomings](https://youtrack.jetbrains.com/issue/RSRP-410004). Alternatively, you can install resharper or use rider to get inline support in your IDE of choice.
 
 # Contributing
 

osu.Game.Rulesets.Catch/Objects/Drawable/DrawableCatchHitObject.cs

@@ -65,7 +65,7 @@ namespace osu.Game.Rulesets.Catch.Objects.Drawable
             base.SkinChanged(skin, allowFallback);
 
             if (HitObject is IHasComboInformation combo)
-                AccentColour = skin.GetValue<SkinConfiguration, Color4>(s => s.ComboColours.Count > 0 ? s.ComboColours[combo.ComboIndex % s.ComboColours.Count] : Color4.White);
+                AccentColour = skin.GetValue<SkinConfiguration, Color4?>(s => s.ComboColours.Count > 0 ? s.ComboColours[combo.ComboIndex % s.ComboColours.Count] : (Color4?)null) ?? Color4.White;
         }
 
         private const float preempt = 1000;

osu.Game.Rulesets.Catch/Scoring/CatchScoreProcessor.cs

@@ -43,6 +43,6 @@ namespace osu.Game.Rulesets.Catch.Scoring
             Health.Value += Math.Max(result.Judgement.HealthIncreaseFor(result) - hpDrainRate, 0) * harshness;
         }
 
-        protected override HitWindows CreateHitWindows() => new CatchHitWindows();
+        public override HitWindows CreateHitWindows() => new CatchHitWindows();
     }
 }

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

@@ -51,7 +51,7 @@ namespace osu.Game.Rulesets.Mania.Difficulty
             difficultyHitObjects.AddRange(beatmap.HitObjects.Select(h => new ManiaHitObjectDifficulty((ManiaHitObject)h, columnCount)).OrderBy(h => h.BaseHitObject.StartTime));
 
             if (!calculateStrainValues(difficultyHitObjects, timeRate))
-                return new DifficultyAttributes(mods, 0);
+                return new ManiaDifficultyAttributes(mods, 0);
 
             double starRating = calculateDifficulty(difficultyHitObjects, timeRate) * star_scaling_factor;
 

osu.Game.Rulesets.Mania/Scoring/ManiaScoreProcessor.cs

@@ -159,6 +159,6 @@ namespace osu.Game.Rulesets.Mania.Scoring
             }
         }
 
-        protected override HitWindows CreateHitWindows() => new ManiaHitWindows();
+        public override HitWindows CreateHitWindows() => new ManiaHitWindows();
     }
 }

osu.Game.Rulesets.Osu/Difficulty/Preprocessing/OsuDifficultyHitObject.cs

@@ -143,7 +143,6 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Preprocessing
             var scoringTimes = slider.NestedHitObjects.Skip(1).Select(t => t.StartTime);
             foreach (var time in scoringTimes)
                 computeVertex(time);
-            computeVertex(slider.EndTime);
         }
 
         private Vector2 getEndCursorPosition(OsuHitObject hitObject)

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

@@ -58,7 +58,7 @@ namespace osu.Game.Rulesets.Osu.Objects.Drawables
             base.SkinChanged(skin, allowFallback);
 
             if (HitObject is IHasComboInformation combo)
-                AccentColour = skin.GetValue<SkinConfiguration, Color4>(s => s.ComboColours.Count > 0 ? s.ComboColours[combo.ComboIndex % s.ComboColours.Count] : Color4.White);
+                AccentColour = skin.GetValue<SkinConfiguration, Color4?>(s => s.ComboColours.Count > 0 ? s.ComboColours[combo.ComboIndex % s.ComboColours.Count] : (Color4?)null) ?? Color4.White;
         }
 
         protected virtual void UpdatePreemptState() => this.FadeIn(HitObject.TimeFadeIn);

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

@@ -156,9 +156,9 @@ namespace osu.Game.Rulesets.Osu.Objects.Drawables
         {
             base.SkinChanged(skin, allowFallback);
 
-            Body.AccentColour = skin.GetValue<SkinConfiguration, Color4>(s => s.CustomColours.ContainsKey("SliderTrackOverride") ? s.CustomColours["SliderTrackOverride"] : Body.AccentColour);
+            Body.AccentColour = skin.GetValue<SkinConfiguration, Color4?>(s => s.CustomColours.ContainsKey("SliderTrackOverride") ? s.CustomColours["SliderTrackOverride"] : (Color4?)null) ?? Body.AccentColour;
-            Body.BorderColour = skin.GetValue<SkinConfiguration, Color4>(s => s.CustomColours.ContainsKey("SliderBorder") ? s.CustomColours["SliderBorder"] : Body.BorderColour);
+            Body.BorderColour = skin.GetValue<SkinConfiguration, Color4?>(s => s.CustomColours.ContainsKey("SliderBorder") ? s.CustomColours["SliderBorder"] : (Color4?)null) ?? Body.BorderColour;
-            Ball.AccentColour = skin.GetValue<SkinConfiguration, Color4>(s => s.CustomColours.ContainsKey("SliderBall") ? s.CustomColours["SliderBall"] : Ball.AccentColour);
+            Ball.AccentColour = skin.GetValue<SkinConfiguration, Color4?>(s => s.CustomColours.ContainsKey("SliderBall") ? s.CustomColours["SliderBall"] : (Color4?)null) ?? Ball.AccentColour;
         }
 
         protected override void CheckForResult(bool userTriggered, double timeOffset)

osu.Game.Rulesets.Osu/Scoring/OsuScoreProcessor.cs

@@ -74,6 +74,6 @@ namespace osu.Game.Rulesets.Osu.Scoring
 
         protected override JudgementResult CreateResult(Judgement judgement) => new OsuJudgementResult(judgement);
 
-        protected override HitWindows CreateHitWindows() => new OsuHitWindows();
+        public override HitWindows CreateHitWindows() => new OsuHitWindows();
     }
 }

osu.Game.Rulesets.Taiko/Difficulty/TaikoDifficultyCalculator.cs

@@ -47,7 +47,7 @@ namespace osu.Game.Rulesets.Taiko.Difficulty
             difficultyHitObjects.Sort((a, b) => a.BaseHitObject.StartTime.CompareTo(b.BaseHitObject.StartTime));
 
             if (!calculateStrainValues(difficultyHitObjects, timeRate))
-                return new DifficultyAttributes(mods, 0);
+                return new TaikoDifficultyAttributes(mods, 0);
 
             double starRating = calculateDifficulty(difficultyHitObjects, timeRate) * star_scaling_factor;
 

osu.Game.Rulesets.Taiko/Scoring/TaikoScoreProcessor.cs

@@ -67,6 +67,6 @@ namespace osu.Game.Rulesets.Taiko.Scoring
             Health.Value = 0;
         }
 
-        protected override HitWindows CreateHitWindows() => new TaikoHitWindows();
+        public override HitWindows CreateHitWindows() => new TaikoHitWindows();
     }
 }

osu.Game.Tests/Resources/skin-empty.ini

@@ -0,0 +1,2 @@
+[General]
+Name: test skin

osu.Game.Tests/Resources/skin.ini

@@ -0,0 +1,8 @@
+[General]
+Name: test skin
+
+[Colours]
+Combo1 : 142,199,255
+Combo2 : 255,128,128
+Combo3 : 128,255,255
+Combo7 : 100,100,100,100

osu.Game.Tests/Skins/LegacySkinDecoderTest.cs

@@ -0,0 +1,44 @@
+// 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.IO;
+using NUnit.Framework;
+using osu.Game.Skinning;
+using osu.Game.Tests.Resources;
+using osuTK.Graphics;
+
+namespace osu.Game.Tests.Skins
+{
+    [TestFixture]
+    public class LegacySkinDecoderTest
+    {
+        [TestCase(true)]
+        [TestCase(false)]
+        public void TestDecodeSkinColours(bool hasColours)
+        {
+            var decoder = new LegacySkinDecoder();
+            using (var resStream = TestResources.OpenResource(hasColours ? "skin.ini" : "skin-empty.ini"))
+            using (var stream = new StreamReader(resStream))
+            {
+                var comboColors = decoder.Decode(stream).ComboColours;
+
+                List<Color4> expectedColors;
+                if (hasColours)
+                    expectedColors = new List<Color4>
+                    {
+                        new Color4(142, 199, 255, 255),
+                        new Color4(255, 128, 128, 255),
+                        new Color4(128, 255, 255, 255),
+                        new Color4(100, 100, 100, 100),
+                    };
+                else
+                    expectedColors = new DefaultSkin().Configuration.ComboColours;
+
+                Assert.AreEqual(expectedColors.Count, comboColors.Count);
+                for (int i = 0; i < expectedColors.Count; i++)
+                    Assert.AreEqual(expectedColors[i], comboColors[i]);
+            }
+        }
+    }
+}

osu.Game.Tests/Visual/TestCaseLoungeRoomsContainer.cs

@@ -16,7 +16,7 @@ using osuTK.Graphics;
 
 namespace osu.Game.Tests.Visual
 {
-    public class TestCaseLoungeRoomsContainer : OsuTestCase
+    public class TestCaseLoungeRoomsContainer : MultiplayerTestCase
     {
         public override IReadOnlyList<Type> RequiredTypes => new[]
         {
@@ -61,7 +61,7 @@ namespace osu.Game.Tests.Visual
             AddAssert("first room removed", () => container.Rooms.All(r => r.Room.RoomID.Value != 0));
 
             AddStep("select first room", () => container.Rooms.First().Action?.Invoke());
-            AddAssert("first room selected", () => container.SelectedRoom.Value == roomManager.Rooms.First());
+            AddAssert("first room selected", () => Room == roomManager.Rooms.First());
 
             AddStep("join first room", () => container.Rooms.First().Action?.Invoke());
             AddAssert("first room joined", () => roomManager.Rooms.First().Status.Value is JoinedRoomStatus);
@@ -71,7 +71,11 @@ namespace osu.Game.Tests.Visual
 
         private class TestRoomManager : IRoomManager
         {
-            public event Action RoomsUpdated;
+            public event Action RoomsUpdated
+            {
+                add { }
+                remove { }
+            }
 
             public readonly BindableList<Room> Rooms = new BindableList<Room>();
             IBindableList<Room> IRoomManager.Rooms => Rooms;
@@ -85,10 +89,6 @@ namespace osu.Game.Tests.Visual
             public void PartRoom()
             {
             }
-
-            public void Filter(FilterCriteria criteria)
-            {
-            }
         }
 
         private class JoinedRoomStatus : RoomStatus

osu.Game.Tests/Visual/TestCaseMatchHeader.cs

@@ -12,7 +12,7 @@ using osu.Game.Screens.Multi.Match.Components;
 
 namespace osu.Game.Tests.Visual
 {
-    public class TestCaseMatchHeader : OsuTestCase
+    public class TestCaseMatchHeader : MultiplayerTestCase
     {
         public override IReadOnlyList<Type> RequiredTypes => new[]
         {
@@ -21,11 +21,7 @@ namespace osu.Game.Tests.Visual
 
         public TestCaseMatchHeader()
         {
-            var room = new Room();
+            Room.Playlist.Add(new PlaylistItem
-
-            var header = new Header(room);
-
-            room.Playlist.Add(new PlaylistItem
             {
                 Beatmap = new BeatmapInfo
                 {
@@ -46,9 +42,9 @@ namespace osu.Game.Tests.Visual
                 }
             });
 
-            room.Type.Value = new GameTypeTimeshift();
+            Room.Type.Value = new GameTypeTimeshift();
 
-            Child = header;
+            Child = new Header();
         }
     }
 }

osu.Game.Tests/Visual/TestCaseMatchInfo.cs

@@ -14,7 +14,7 @@ using osu.Game.Screens.Multi.Match.Components;
 namespace osu.Game.Tests.Visual
 {
     [TestFixture]
-    public class TestCaseMatchInfo : OsuTestCase
+    public class TestCaseMatchInfo : MultiplayerTestCase
     {
         public override IReadOnlyList<Type> RequiredTypes => new[]
         {
@@ -27,18 +27,15 @@ namespace osu.Game.Tests.Visual
         [BackgroundDependencyLoader]
         private void load(RulesetStore rulesets)
         {
-            var room = new Room();
+            Add(new Info());
 
-            Info info = new Info(room);
+            AddStep(@"set name", () => Room.Name.Value = @"Room Name?");
-            Add(info);
+            AddStep(@"set availability", () => Room.Availability.Value = RoomAvailability.FriendsOnly);
-
+            AddStep(@"set status", () => Room.Status.Value = new RoomStatusPlaying());
-            AddStep(@"set name", () => room.Name.Value = @"Room Name?");
-            AddStep(@"set availability", () => room.Availability.Value = RoomAvailability.FriendsOnly);
-            AddStep(@"set status", () => room.Status.Value = new RoomStatusPlaying());
             AddStep(@"set beatmap", () =>
             {
-                room.Playlist.Clear();
+                Room.Playlist.Clear();
-                room.Playlist.Add(new PlaylistItem
+                Room.Playlist.Add(new PlaylistItem
                 {
                     Beatmap = new BeatmapInfo
                     {
@@ -54,14 +51,14 @@ namespace osu.Game.Tests.Visual
                 });
             });
 
-            AddStep(@"change name", () => room.Name.Value = @"Room Name!");
+            AddStep(@"change name", () => Room.Name.Value = @"Room Name!");
-            AddStep(@"change availability", () => room.Availability.Value = RoomAvailability.InviteOnly);
+            AddStep(@"change availability", () => Room.Availability.Value = RoomAvailability.InviteOnly);
-            AddStep(@"change status", () => room.Status.Value = new RoomStatusOpen());
+            AddStep(@"change status", () => Room.Status.Value = new RoomStatusOpen());
-            AddStep(@"null beatmap", () => room.Playlist.Clear());
+            AddStep(@"null beatmap", () => Room.Playlist.Clear());
             AddStep(@"change beatmap", () =>
             {
-                room.Playlist.Clear();
+                Room.Playlist.Clear();
-                room.Playlist.Add(new PlaylistItem
+                Room.Playlist.Add(new PlaylistItem
                 {
                     Beatmap = new BeatmapInfo
                     {

osu.Game.Tests/Visual/TestCaseMatchLeaderboard.cs

@@ -6,24 +6,24 @@ using Newtonsoft.Json;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Game.Online.API;
-using osu.Game.Online.Multiplayer;
 using osu.Game.Screens.Multi.Match.Components;
 using osu.Game.Users;
 using osuTK;
 
 namespace osu.Game.Tests.Visual
 {
-    public class TestCaseMatchLeaderboard : OsuTestCase
+    public class TestCaseMatchLeaderboard : MultiplayerTestCase
     {
         public TestCaseMatchLeaderboard()
         {
+            Room.RoomID.Value = 3;
+
             Add(new MatchLeaderboard
             {
                 Origin = Anchor.Centre,
                 Anchor = Anchor.Centre,
                 Size = new Vector2(550f, 450f),
                 Scope = MatchLeaderboardScope.Overall,
-                Room = new Room { RoomID = { Value = 3 } }
             });
         }
 

osu.Game.Tests/Visual/TestCaseMatchParticipants.cs

@@ -1,9 +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.Collections.Generic;
 using NUnit.Framework;
-using osu.Framework.Configuration;
 using osu.Framework.Graphics;
 using osu.Game.Screens.Multi.Match.Components;
 using osu.Game.Users;
@@ -11,22 +9,14 @@ using osu.Game.Users;
 namespace osu.Game.Tests.Visual
 {
     [TestFixture]
-    public class TestCaseMatchParticipants : OsuTestCase
+    public class TestCaseMatchParticipants : MultiplayerTestCase
     {
-        private readonly Bindable<int?> maxParticipants = new Bindable<int?>();
-        private readonly Bindable<IEnumerable<User>> users = new Bindable<IEnumerable<User>>();
-
         public TestCaseMatchParticipants()
         {
-            Participants participants;
+            Add(new Participants { RelativeSizeAxes = Axes.Both });
 
-            Add(participants = new Participants { RelativeSizeAxes = Axes.Both });
+            AddStep(@"set max to null", () => Room.MaxParticipants.Value = null);
-
+            AddStep(@"set users", () => Room.Participants.Value = new[]
-            participants.MaxParticipants.BindTo(maxParticipants);
-            participants.Users.BindTo(users);
-
-            AddStep(@"set max to null", () => maxParticipants.Value = null);
-            AddStep(@"set users", () => users.Value = new[]
             {
                 new User
                 {
@@ -54,9 +44,9 @@ namespace osu.Game.Tests.Visual
                 },
             });
 
-            AddStep(@"set max", () => maxParticipants.Value = 10);
+            AddStep(@"set max", () => Room.MaxParticipants.Value = 10);
-            AddStep(@"clear users", () => users.Value = new User[] { });
+            AddStep(@"clear users", () => Room.Participants.Value = new User[] { });
-            AddStep(@"set max to null", () => maxParticipants.Value = null);
+            AddStep(@"set max to null", () => Room.MaxParticipants.Value = null);
         }
     }
 }

osu.Game.Tests/Visual/TestCaseMatchResults.cs

@@ -8,7 +8,6 @@ using osu.Framework.Allocation;
 using osu.Game.Beatmaps;
 using osu.Game.Online.API;
 using osu.Game.Online.API.Requests.Responses;
-using osu.Game.Online.Multiplayer;
 using osu.Game.Scoring;
 using osu.Game.Screens.Multi.Match.Components;
 using osu.Game.Screens.Multi.Ranking;
@@ -19,7 +18,7 @@ using osu.Game.Users;
 
 namespace osu.Game.Tests.Visual
 {
-    public class TestCaseMatchResults : OsuTestCase
+    public class TestCaseMatchResults : MultiplayerTestCase
     {
         public override IReadOnlyList<Type> RequiredTypes => new[]
         {
@@ -38,6 +37,9 @@ namespace osu.Game.Tests.Visual
             if (beatmapInfo != null)
                 Beatmap.Value = beatmaps.GetWorkingBeatmap(beatmapInfo);
 
+            Room.RoomID.Value = 1;
+            Room.Name.Value = "an awesome room";
+
             Child = new TestMatchResults(new ScoreInfo
             {
                 User = new User { Id = 10 },
@@ -46,60 +48,41 @@ namespace osu.Game.Tests.Visual
 
         private class TestMatchResults : MatchResults
         {
-            private readonly Room room;
-
             public TestMatchResults(ScoreInfo score)
-                : this(score, new Room
+                : base(score)
-                {
-                    RoomID = { Value = 1 },
-                    Name = { Value = "an awesome room" }
-                })
             {
             }
 
-            public TestMatchResults(ScoreInfo score, Room room)
+            protected override IEnumerable<IResultPageInfo> CreateResultPages() => new[] { new TestRoomLeaderboardPageInfo(Score, Beatmap) };
-                : base(score, room)
-            {
-                this.room = room;
-            }
-
-            protected override IEnumerable<IResultPageInfo> CreateResultPages() => new[] { new TestRoomLeaderboardPageInfo(Score, Beatmap, room) };
         }
 
         private class TestRoomLeaderboardPageInfo : RoomLeaderboardPageInfo
         {
             private readonly ScoreInfo score;
             private readonly WorkingBeatmap beatmap;
-            private readonly Room room;
 
-            public TestRoomLeaderboardPageInfo(ScoreInfo score, WorkingBeatmap beatmap, Room room)
+            public TestRoomLeaderboardPageInfo(ScoreInfo score, WorkingBeatmap beatmap)
-                : base(score, beatmap, room)
+                : base(score, beatmap)
             {
                 this.score = score;
                 this.beatmap = beatmap;
-                this.room = room;
             }
 
-            public override ResultsPage CreatePage() => new TestRoomLeaderboardPage(score, beatmap, room);
+            public override ResultsPage CreatePage() => new TestRoomLeaderboardPage(score, beatmap);
         }
 
         private class TestRoomLeaderboardPage : RoomLeaderboardPage
         {
-            public TestRoomLeaderboardPage(ScoreInfo score, WorkingBeatmap beatmap, Room room)
+            public TestRoomLeaderboardPage(ScoreInfo score, WorkingBeatmap beatmap)
-                : base(score, beatmap, room)
+                : base(score, beatmap)
             {
             }
 
-            protected override MatchLeaderboard CreateLeaderboard(Room room) => new TestMatchLeaderboard(room);
+            protected override MatchLeaderboard CreateLeaderboard() => new TestMatchLeaderboard();
         }
 
         private class TestMatchLeaderboard : RoomLeaderboardPage.ResultsMatchLeaderboard
         {
-            public TestMatchLeaderboard(Room room)
-                : base(room)
-            {
-            }
-
             protected override APIRequest FetchScores(Action<IEnumerable<APIRoomScoreInfo>> scoresCallback)
             {
                 var scores = Enumerable.Range(0, 50).Select(createRoomScore).ToArray();

osu.Game.Tests/Visual/TestCaseMatchSettingsOverlay.cs

@@ -13,12 +13,11 @@ using osu.Game.Graphics.Sprites;
 using osu.Game.Graphics.UserInterface;
 using osu.Game.Online.Multiplayer;
 using osu.Game.Screens.Multi;
-using osu.Game.Screens.Multi.Lounge.Components;
 using osu.Game.Screens.Multi.Match.Components;
 
 namespace osu.Game.Tests.Visual
 {
-    public class TestCaseMatchSettingsOverlay : OsuTestCase
+    public class TestCaseMatchSettingsOverlay : MultiplayerTestCase
     {
         public override IReadOnlyList<Type> RequiredTypes => new[]
         {
@@ -28,14 +27,14 @@ namespace osu.Game.Tests.Visual
         [Cached(Type = typeof(IRoomManager))]
         private TestRoomManager roomManager = new TestRoomManager();
 
-        private Room room;
         private TestRoomSettings settings;
 
         [SetUp]
         public void Setup() => Schedule(() =>
         {
-            room = new Room();
+            Room = new Room();
-            settings = new TestRoomSettings(room)
+
+            settings = new TestRoomSettings
             {
                 RelativeSizeAxes = Axes.Both,
                 State = Visibility.Visible
@@ -49,19 +48,19 @@ namespace osu.Game.Tests.Visual
         {
             AddStep("clear name and beatmap", () =>
             {
-                room.Name.Value = "";
+                Room.Name.Value = "";
-                room.Playlist.Clear();
+                Room.Playlist.Clear();
             });
 
             AddAssert("button disabled", () => !settings.ApplyButton.Enabled);
 
-            AddStep("set name", () => room.Name.Value = "Room name");
+            AddStep("set name", () => Room.Name.Value = "Room name");
             AddAssert("button disabled", () => !settings.ApplyButton.Enabled);
 
-            AddStep("set beatmap", () => room.Playlist.Add(new PlaylistItem { Beatmap = new DummyWorkingBeatmap().BeatmapInfo }));
+            AddStep("set beatmap", () => Room.Playlist.Add(new PlaylistItem { Beatmap = new DummyWorkingBeatmap().BeatmapInfo }));
             AddAssert("button enabled", () => settings.ApplyButton.Enabled);
 
-            AddStep("clear name", () => room.Name.Value = "");
+            AddStep("clear name", () => Room.Name.Value = "");
             AddAssert("button disabled", () => !settings.ApplyButton.Enabled);
         }
 
@@ -117,17 +116,12 @@ namespace osu.Game.Tests.Visual
 
         private class TestRoomSettings : MatchSettingsOverlay
         {
-            public new TriangleButton ApplyButton => base.ApplyButton;
+            public TriangleButton ApplyButton => Settings.ApplyButton;
 
-            public new OsuTextBox NameField => base.NameField;
+            public OsuTextBox NameField => Settings.NameField;
-            public new OsuDropdown<TimeSpan> DurationField => base.DurationField;
+            public OsuDropdown<TimeSpan> DurationField => Settings.DurationField;
 
-            public new OsuSpriteText ErrorText => base.ErrorText;
+            public OsuSpriteText ErrorText => Settings.ErrorText;
-
-            public TestRoomSettings(Room room)
-                : base(room)
-            {
-            }
         }
 
         private class TestRoomManager : IRoomManager
@@ -136,7 +130,11 @@ namespace osu.Game.Tests.Visual
 
             public Func<Room, bool> CreateRequested;
 
-            public event Action RoomsUpdated;
+            public event Action RoomsUpdated
+            {
+                add { }
+                remove { }
+            }
 
             public IBindableList<Room> Rooms { get; } = null;
 
@@ -154,8 +152,6 @@ namespace osu.Game.Tests.Visual
             public void JoinRoom(Room room, Action<Room> onSuccess = null, Action<string> onError = null) => throw new NotImplementedException();
 
             public void PartRoom() => throw new NotImplementedException();
-
-            public void Filter(FilterCriteria criteria) => throw new NotImplementedException();
         }
     }
 }

osu.Game/Online/Multiplayer/Room.cs

@@ -5,6 +5,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using Newtonsoft.Json;
+using osu.Framework.Allocation;
 using osu.Framework.Configuration;
 using osu.Game.Online.Multiplayer.GameTypes;
 using osu.Game.Online.Multiplayer.RoomStatuses;
@@ -14,42 +15,55 @@ namespace osu.Game.Online.Multiplayer
 {
     public class Room
     {
+        [Cached]
         [JsonProperty("id")]
         public Bindable<int?> RoomID { get; private set; } = new Bindable<int?>();
 
+        [Cached]
         [JsonProperty("name")]
         public Bindable<string> Name { get; private set; } = new Bindable<string>();
 
+        [Cached]
         [JsonProperty("host")]
         public Bindable<User> Host { get; private set; } = new Bindable<User>();
 
+        [Cached]
         [JsonProperty("playlist")]
-        public BindableList<PlaylistItem> Playlist { get; set; } = new BindableList<PlaylistItem>();
+        public BindableList<PlaylistItem> Playlist { get; private set; } = new BindableList<PlaylistItem>();
 
+        [Cached]
         [JsonProperty("channel_id")]
         public Bindable<int> ChannelId { get; private set; } = new Bindable<int>();
 
+        [Cached]
         [JsonIgnore]
         public Bindable<TimeSpan> Duration { get; private set; } = new Bindable<TimeSpan>(TimeSpan.FromMinutes(30));
 
+        [Cached]
         [JsonIgnore]
         public Bindable<int?> MaxAttempts { get; private set; } = new Bindable<int?>();
 
+        [Cached]
         [JsonIgnore]
         public Bindable<RoomStatus> Status { get; private set; } = new Bindable<RoomStatus>(new RoomStatusOpen());
 
+        [Cached]
         [JsonIgnore]
         public Bindable<RoomAvailability> Availability { get; private set; } = new Bindable<RoomAvailability>();
 
+        [Cached]
         [JsonIgnore]
         public Bindable<GameType> Type { get; private set; } = new Bindable<GameType>(new GameTypeTimeshift());
 
+        [Cached]
         [JsonIgnore]
         public Bindable<int?> MaxParticipants { get; private set; } = new Bindable<int?>();
 
+        [Cached]
         [JsonIgnore]
         public Bindable<IEnumerable<User>> Participants { get; private set; } = new Bindable<IEnumerable<User>>(Enumerable.Empty<User>());
 
+        [Cached]
         public Bindable<int> ParticipantCount { get; private set; } = new Bindable<int>();
 
         // todo: TEMPORARY
@@ -68,6 +82,7 @@ namespace osu.Game.Online.Multiplayer
         }
 
         // Only supports retrieval for now
+        [Cached]
         [JsonProperty("ends_at")]
         public Bindable<DateTimeOffset> EndDate { get; private set; } = new Bindable<DateTimeOffset>();
 
@@ -83,7 +98,7 @@ namespace osu.Game.Online.Multiplayer
         /// The position of this <see cref="Room"/> in the list. This is not read from or written to the API.
         /// </summary>
         [JsonIgnore]
-        public int Position = -1;
+        public Bindable<int> Position { get; private set; } = new Bindable<int>(-1);
 
         public void CopyFrom(Room other)
         {

osu.Game/Overlays/KeyBinding/GlobalKeyBindingsSection.cs

@@ -9,7 +9,7 @@ namespace osu.Game.Overlays.KeyBinding
 {
     public class GlobalKeyBindingsSection : SettingsSection
     {
-        public override FontAwesome Icon => FontAwesome.fa_osu_hot;
+        public override FontAwesome Icon => FontAwesome.fa_globe;
         public override string Header => "Global";
 
         public GlobalKeyBindingsSection(GlobalActionContainer manager)

osu.Game/Overlays/KeyBinding/RulesetBindingsSection.cs

@@ -9,7 +9,7 @@ namespace osu.Game.Overlays.KeyBinding
 {
     public class RulesetBindingsSection : SettingsSection
     {
-        public override FontAwesome Icon => FontAwesome.fa_osu_hot;
+        public override FontAwesome Icon => (ruleset.CreateInstance().CreateIcon() as SpriteIcon)?.Icon ?? FontAwesome.fa_osu_hot;
         public override string Header => ruleset.Name;
 
         private readonly RulesetInfo ruleset;

osu.Game/Overlays/KeyBindingOverlay.cs

@@ -3,10 +3,17 @@
 
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
+using osu.Framework.Input.Bindings;
+using osu.Framework.Input.Events;
+using osu.Game.Graphics;
+using osu.Game.Graphics.Containers;
+using osu.Game.Graphics.Sprites;
 using osu.Game.Input.Bindings;
 using osu.Game.Overlays.KeyBinding;
 using osu.Game.Overlays.Settings;
 using osu.Game.Rulesets;
+using osu.Game.Screens.Ranking;
+using osuTK;
 
 namespace osu.Game.Overlays
 {
@@ -21,11 +28,85 @@ namespace osu.Game.Overlays
 
             foreach (var ruleset in rulesets.AvailableRulesets)
                 AddSection(new RulesetBindingsSection(ruleset));
+
+            AddInternal(new BackButton
+            {
+                Anchor = Anchor.BottomLeft,
+                Origin = Anchor.BottomLeft,
+                Action = Hide
+            });
         }
 
         public KeyBindingOverlay()
-            : base(false)
+            : base(true)
         {
         }
+
+        private class BackButton : OsuClickableContainer, IKeyBindingHandler<GlobalAction>
+        {
+            private AspectContainer aspect;
+
+            [BackgroundDependencyLoader]
+            private void load()
+            {
+                Size = new Vector2(Sidebar.DEFAULT_WIDTH);
+                Children = new Drawable[]
+                {
+                    aspect = new AspectContainer
+                    {
+                        Anchor = Anchor.Centre,
+                        Origin = Anchor.Centre,
+                        RelativeSizeAxes = Axes.Y,
+                        Children = new Drawable[]
+                        {
+                            new SpriteIcon
+                            {
+                                Anchor = Anchor.Centre,
+                                Origin = Anchor.Centre,
+                                Y = -15,
+                                Size = new Vector2(15),
+                                Shadow = true,
+                                Icon = FontAwesome.fa_chevron_left
+                            },
+                            new OsuSpriteText
+                            {
+                                Anchor = Anchor.Centre,
+                                Origin = Anchor.Centre,
+                                Y = 15,
+                                TextSize = 12,
+                                Font = @"Exo2.0-Bold",
+                                Text = @"back",
+                            },
+                        }
+                    }
+                };
+            }
+
+            protected override bool OnMouseDown(MouseDownEvent e)
+            {
+                aspect.ScaleTo(0.75f, 2000, Easing.OutQuint);
+                return base.OnMouseDown(e);
+            }
+
+            protected override bool OnMouseUp(MouseUpEvent e)
+            {
+                aspect.ScaleTo(1, 1000, Easing.OutElastic);
+                return base.OnMouseUp(e);
+            }
+
+            public bool OnPressed(GlobalAction action)
+            {
+                switch (action)
+                {
+                    case GlobalAction.Back:
+                        Click();
+                        return true;
+                }
+
+                return false;
+            }
+
+            public bool OnReleased(GlobalAction action) => false;
+        }
     }
 }

osu.Game/Overlays/MainSettings.cs

@@ -1,28 +1,19 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-using System.Collections.Generic;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
-using osu.Framework.Input.Bindings;
-using osu.Framework.Input.Events;
-using osu.Game.Graphics;
-using osu.Game.Graphics.Containers;
-using osu.Game.Graphics.Sprites;
-using osu.Game.Input.Bindings;
 using osu.Game.Overlays.Settings;
 using osu.Game.Overlays.Settings.Sections;
-using osu.Game.Screens.Ranking;
-using osuTK;
 using osuTK.Graphics;
+using System.Collections.Generic;
 
 namespace osu.Game.Overlays
 {
     public class MainSettings : SettingsOverlay
     {
         private readonly KeyBindingOverlay keyBindingOverlay;
-        private BackButton backButton;
 
         protected override IEnumerable<SettingsSection> CreateSections() => new SettingsSection[]
         {
@@ -53,8 +44,6 @@ namespace osu.Game.Overlays
 
         public override bool AcceptsFocus => keyBindingOverlay.State != Visibility.Visible;
 
-        private const float hidden_width = 120;
-
         private void keyBindingOverlay_StateChanged(Visibility visibility)
         {
             switch (visibility)
@@ -64,9 +53,7 @@ namespace osu.Game.Overlays
                     Sidebar?.FadeColour(Color4.DarkGray, 300, Easing.OutQuint);
 
                     SectionsContainer.FadeOut(300, Easing.OutQuint);
-                    ContentContainer.MoveToX(hidden_width - WIDTH, 500, Easing.OutQuint);
+                    ContentContainer.MoveToX(-WIDTH, 500, Easing.OutQuint);
-
-                    backButton.Delay(100).FadeIn(100);
                     break;
                 case Visibility.Hidden:
                     Background.FadeTo(0.6f, 500, Easing.OutQuint);
@@ -74,94 +61,16 @@ namespace osu.Game.Overlays
 
                     SectionsContainer.FadeIn(500, Easing.OutQuint);
                     ContentContainer.MoveToX(0, 500, Easing.OutQuint);
-
-                    backButton.FadeOut(100);
                     break;
             }
         }
 
-        protected override float ExpandedPosition => keyBindingOverlay.State == Visibility.Visible ? hidden_width - WIDTH : base.ExpandedPosition;
+        protected override float ExpandedPosition => keyBindingOverlay.State == Visibility.Visible ? -WIDTH : base.ExpandedPosition;
 
         [BackgroundDependencyLoader]
         private void load()
         {
             ContentContainer.Add(keyBindingOverlay);
-
-            ContentContainer.Add(backButton = new BackButton
-            {
-                Alpha = 0,
-                Width = hidden_width,
-                RelativeSizeAxes = Axes.Y,
-                Anchor = Anchor.CentreRight,
-                Origin = Anchor.CentreRight,
-                Action = () => keyBindingOverlay.Hide()
-            });
-        }
-
-        private class BackButton : OsuClickableContainer, IKeyBindingHandler<GlobalAction>
-        {
-            private AspectContainer aspect;
-
-            [BackgroundDependencyLoader]
-            private void load()
-            {
-                Children = new Drawable[]
-                {
-                    aspect = new AspectContainer
-                    {
-                        Anchor = Anchor.Centre,
-                        Origin = Anchor.Centre,
-                        RelativeSizeAxes = Axes.Y,
-                        Children = new Drawable[]
-                        {
-                            new SpriteIcon
-                            {
-                                Anchor = Anchor.Centre,
-                                Origin = Anchor.Centre,
-                                Y = -15,
-                                Size = new Vector2(15),
-                                Shadow = true,
-                                Icon = FontAwesome.fa_chevron_left
-                            },
-                            new OsuSpriteText
-                            {
-                                Anchor = Anchor.Centre,
-                                Origin = Anchor.Centre,
-                                Y = 15,
-                                TextSize = 12,
-                                Font = @"Exo2.0-Bold",
-                                Text = @"back",
-                            },
-                        }
-                    }
-                };
-            }
-
-            protected override bool OnMouseDown(MouseDownEvent e)
-            {
-                aspect.ScaleTo(0.75f, 2000, Easing.OutQuint);
-                return base.OnMouseDown(e);
-            }
-
-            protected override bool OnMouseUp(MouseUpEvent e)
-            {
-                aspect.ScaleTo(1, 1000, Easing.OutElastic);
-                return base.OnMouseUp(e);
-            }
-
-            public bool OnPressed(GlobalAction action)
-            {
-                switch (action)
-                {
-                    case GlobalAction.Back:
-                        Click();
-                        return true;
-                }
-
-                return false;
-            }
-
-            public bool OnReleased(GlobalAction action) => false;
         }
     }
 }

osu.Game/Overlays/Music/PlaylistItem.cs

@@ -169,6 +169,8 @@ namespace osu.Game.Overlays.Music
                 Alpha = 0f;
                 Margin = new MarginPadding { Left = 5, Top = 2 };
             }
+
+            public override bool HandlePositionalInput => IsPresent;
         }
     }
 

osu.Game/Rulesets/Scoring/ScoreProcessor.cs

@@ -63,7 +63,7 @@ namespace osu.Game.Rulesets.Scoring
         /// <summary>
         /// Create a <see cref="HitWindows"/> for this processor.
         /// </summary>
-        protected virtual HitWindows CreateHitWindows() => new HitWindows();
+        public virtual HitWindows CreateHitWindows() => new HitWindows();
 
         /// <summary>
         /// The current rank.

osu.Game/Scoring/Legacy/LegacyScoreParser.cs

@@ -57,12 +57,32 @@ namespace osu.Game.Scoring.Legacy
                 var countKatu = (int)sr.ReadUInt16();
                 var countMiss = (int)sr.ReadUInt16();
 
+                switch (currentRuleset.LegacyID)
+                {
+                    case 0:
                         score.ScoreInfo.Statistics[HitResult.Great] = count300;
                         score.ScoreInfo.Statistics[HitResult.Good] = count100;
                         score.ScoreInfo.Statistics[HitResult.Meh] = count50;
-                score.ScoreInfo.Statistics[HitResult.Perfect] = countGeki;
-                score.ScoreInfo.Statistics[HitResult.Ok] = countKatu;
                         score.ScoreInfo.Statistics[HitResult.Miss] = countMiss;
+                        break;
+                    case 1:
+                        score.ScoreInfo.Statistics[HitResult.Great] = count300;
+                        score.ScoreInfo.Statistics[HitResult.Good] = count100;
+                        score.ScoreInfo.Statistics[HitResult.Miss] = countMiss;
+                        break;
+                    case 2:
+                        score.ScoreInfo.Statistics[HitResult.Perfect] = count300;
+                        score.ScoreInfo.Statistics[HitResult.Miss] = countMiss;
+                        break;
+                    case 3:
+                        score.ScoreInfo.Statistics[HitResult.Perfect] = countGeki;
+                        score.ScoreInfo.Statistics[HitResult.Great] = count300;
+                        score.ScoreInfo.Statistics[HitResult.Good] = countKatu;
+                        score.ScoreInfo.Statistics[HitResult.Ok] = count100;
+                        score.ScoreInfo.Statistics[HitResult.Meh] = count50;
+                        score.ScoreInfo.Statistics[HitResult.Miss] = countMiss;
+                        break;
+                }
 
                 score.ScoreInfo.TotalScore = sr.ReadInt32();
                 score.ScoreInfo.MaxCombo = sr.ReadUInt16();
@@ -116,12 +136,12 @@ namespace osu.Game.Scoring.Legacy
 
         protected void CalculateAccuracy(ScoreInfo score)
         {
-            int countMiss = score.Statistics[HitResult.Miss];
+            score.Statistics.TryGetValue(HitResult.Miss, out int countMiss);
-            int count50 = score.Statistics[HitResult.Meh];
+            score.Statistics.TryGetValue(HitResult.Meh, out int count50);
-            int count100 = score.Statistics[HitResult.Good];
+            score.Statistics.TryGetValue(HitResult.Good, out int count100);
-            int count300 = score.Statistics[HitResult.Great];
+            score.Statistics.TryGetValue(HitResult.Great, out int count300);
-            int countGeki = score.Statistics[HitResult.Perfect];
+            score.Statistics.TryGetValue(HitResult.Perfect, out int countGeki);
-            int countKatu = score.Statistics[HitResult.Ok];
+            score.Statistics.TryGetValue(HitResult.Ok, out int countKatu);
 
             switch (score.Ruleset.ID)
             {

osu.Game/Screens/BackgroundScreenStack.cs

@@ -14,6 +14,8 @@ namespace osu.Game.Screens
         {
             Scale = new Vector2(1.06f);
             RelativeSizeAxes = Axes.Both;
+            Anchor = Anchor.Centre;
+            Origin = Anchor.Centre;
         }
 
         //public float ParallaxAmount { set => parallax.ParallaxAmount = ParallaxContainer.DEFAULT_PARALLAX_AMOUNT * value; }

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

@@ -2,11 +2,8 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using osu.Framework.Allocation;
-using osu.Framework.Configuration;
 using osu.Framework.Graphics;
-using osu.Framework.Graphics.Containers;
 using osu.Framework.Localisation;
-using osu.Game.Beatmaps;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.Sprites;
@@ -14,10 +11,8 @@ using osu.Game.Online.Chat;
 
 namespace osu.Game.Screens.Multi.Components
 {
-    public class BeatmapTitle : CompositeDrawable
+    public class BeatmapTitle : MultiplayerComposite
     {
-        public readonly IBindable<BeatmapInfo> Beatmap = new Bindable<BeatmapInfo>();
-
         private readonly LinkFlowContainer textFlow;
 
         public BeatmapTitle()
@@ -27,10 +22,10 @@ namespace osu.Game.Screens.Multi.Components
             InternalChild = textFlow = new LinkFlowContainer { AutoSizeAxes = Axes.Both };
         }
 
-        protected override void LoadComplete()
+        [BackgroundDependencyLoader]
+        private void load()
         {
-            base.LoadComplete();
+            CurrentBeatmap.BindValueChanged(v => updateText(), true);
-            Beatmap.BindValueChanged(v => updateText(), true);
         }
 
         private float textSize = OsuSpriteText.FONT_SIZE;
@@ -58,7 +53,7 @@ namespace osu.Game.Screens.Multi.Components
 
             textFlow.Clear();
 
-            if (Beatmap.Value == null)
+            if (CurrentBeatmap.Value == null)
                 textFlow.AddText("No beatmap selected", s =>
                 {
                     s.TextSize = TextSize;
@@ -70,7 +65,7 @@ namespace osu.Game.Screens.Multi.Components
                 {
                     new OsuSpriteText
                     {
-                        Text = new LocalisedString((Beatmap.Value.Metadata.ArtistUnicode, Beatmap.Value.Metadata.Artist)),
+                        Text = new LocalisedString((CurrentBeatmap.Value.Metadata.ArtistUnicode, CurrentBeatmap.Value.Metadata.Artist)),
                         TextSize = TextSize,
                     },
                     new OsuSpriteText
@@ -80,10 +75,10 @@ namespace osu.Game.Screens.Multi.Components
                     },
                     new OsuSpriteText
                     {
-                        Text = new LocalisedString((Beatmap.Value.Metadata.TitleUnicode, Beatmap.Value.Metadata.Title)),
+                        Text = new LocalisedString((CurrentBeatmap.Value.Metadata.TitleUnicode, CurrentBeatmap.Value.Metadata.Title)),
                         TextSize = TextSize,
                     }
-                }, null, LinkAction.OpenBeatmap, Beatmap.Value.OnlineBeatmapID.ToString(), "Open beatmap");
+                }, null, LinkAction.OpenBeatmap, CurrentBeatmap.Value.OnlineBeatmapID.ToString(), "Open beatmap");
             }
         }
     }

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

@@ -1,31 +1,26 @@
 // 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.Configuration;
+using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
-using osu.Game.Beatmaps;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Containers;
 using osu.Game.Online.Chat;
-using osu.Game.Online.Multiplayer;
-using osu.Game.Rulesets;
 using osuTK;
 
 namespace osu.Game.Screens.Multi.Components
 {
-    public class BeatmapTypeInfo : CompositeDrawable
+    public class BeatmapTypeInfo : MultiplayerComposite
     {
-        public readonly IBindable<BeatmapInfo> Beatmap = new Bindable<BeatmapInfo>();
-        public readonly IBindable<RulesetInfo> Ruleset = new Bindable<RulesetInfo>();
-        public readonly IBindable<GameType> Type = new Bindable<GameType>();
-
         public BeatmapTypeInfo()
         {
             AutoSizeAxes = Axes.Both;
+        }
 
-            BeatmapTitle beatmapTitle;
+        [BackgroundDependencyLoader]
-            ModeTypeInfo modeTypeInfo;
+        private void load()
+        {
             LinkFlowContainer beatmapAuthor;
 
             InternalChild = new FillFlowContainer
@@ -36,7 +31,7 @@ namespace osu.Game.Screens.Multi.Components
                 Spacing = new Vector2(5, 0),
                 Children = new Drawable[]
                 {
-                    modeTypeInfo = new ModeTypeInfo(),
+                    new ModeTypeInfo(),
                     new Container
                     {
                         AutoSizeAxes = Axes.X,
@@ -44,7 +39,7 @@ namespace osu.Game.Screens.Multi.Components
                         Margin = new MarginPadding { Left = 5 },
                         Children = new Drawable[]
                         {
-                            beatmapTitle = new BeatmapTitle(),
+                            new BeatmapTitle(),
                             beatmapAuthor = new LinkFlowContainer(s => s.TextSize = 14)
                             {
                                 Anchor = Anchor.BottomLeft,
@@ -56,13 +51,7 @@ namespace osu.Game.Screens.Multi.Components
                 }
             };
 
-            modeTypeInfo.Beatmap.BindTo(Beatmap);
+            CurrentBeatmap.BindValueChanged(v =>
-            modeTypeInfo.Ruleset.BindTo(Ruleset);
-            modeTypeInfo.Type.BindTo(Type);
-
-            beatmapTitle.Beatmap.BindTo(Beatmap);
-
-            Beatmap.BindValueChanged(v =>
             {
                 beatmapAuthor.Clear();
 
@@ -71,7 +60,7 @@ namespace osu.Game.Screens.Multi.Components
                     beatmapAuthor.AddText("mapped by ", s => s.Colour = OsuColour.Gray(0.8f));
                     beatmapAuthor.AddLink(v.Metadata.Author.Username, null, LinkAction.OpenUserProfile, v.Metadata.Author.Id.ToString(), "View Profile");
                 }
-            });
+            }, true);
         }
     }
 }

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

@@ -1,32 +1,29 @@
 // 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.Configuration;
+using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
-using osu.Game.Beatmaps;
 using osu.Game.Beatmaps.Drawables;
-using osu.Game.Online.Multiplayer;
-using osu.Game.Rulesets;
 using osuTK;
 
 namespace osu.Game.Screens.Multi.Components
 {
-    public class ModeTypeInfo : CompositeDrawable
+    public class ModeTypeInfo : MultiplayerComposite
     {
         private const float height = 30;
         private const float transition_duration = 100;
 
-        private readonly Container rulesetContainer;
+        private Container rulesetContainer;
-
-        public readonly IBindable<BeatmapInfo> Beatmap = new Bindable<BeatmapInfo>();
-        public readonly IBindable<RulesetInfo> Ruleset = new Bindable<RulesetInfo>();
-        public readonly IBindable<GameType> Type = new Bindable<GameType>();
 
         public ModeTypeInfo()
         {
             AutoSizeAxes = Axes.Both;
+        }
 
+        [BackgroundDependencyLoader]
+        private void load()
+        {
             Container gameTypeContainer;
 
             InternalChild = new FillFlowContainer
@@ -48,17 +45,17 @@ namespace osu.Game.Screens.Multi.Components
                 },
             };
 
-            Beatmap.BindValueChanged(updateBeatmap);
+            CurrentBeatmap.BindValueChanged(_ => updateBeatmap());
-            Ruleset.BindValueChanged(_ => updateBeatmap(Beatmap.Value));
+            CurrentRuleset.BindValueChanged(_ => updateBeatmap(), true);
-            Type.BindValueChanged(v => gameTypeContainer.Child = new DrawableGameType(v) { Size = new Vector2(height) });
+            Type.BindValueChanged(v => gameTypeContainer.Child = new DrawableGameType(v) { Size = new Vector2(height) }, true);
         }
 
-        private void updateBeatmap(BeatmapInfo beatmap)
+        private void updateBeatmap()
         {
-            if (beatmap != null)
+            if (CurrentBeatmap.Value != null)
             {
                 rulesetContainer.FadeIn(transition_duration);
-                rulesetContainer.Child = new DifficultyIcon(beatmap, Ruleset.Value) { Size = new Vector2(height) };
+                rulesetContainer.Child = new DifficultyIcon(CurrentBeatmap.Value, CurrentRuleset.Value) { Size = new Vector2(height) };
             }
             else
                 rulesetContainer.FadeOut(transition_duration);

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

@@ -0,0 +1,24 @@
+// 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.Game.Beatmaps.Drawables;
+
+namespace osu.Game.Screens.Multi.Components
+{
+    public class MultiplayerBackgroundSprite : MultiplayerComposite
+    {
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            UpdateableBeatmapBackgroundSprite sprite;
+
+            InternalChild = sprite = CreateBackgroundSprite();
+
+            sprite.Beatmap.BindTo(CurrentBeatmap);
+        }
+
+        protected virtual UpdateableBeatmapBackgroundSprite CreateBackgroundSprite() => new UpdateableBeatmapBackgroundSprite { RelativeSizeAxes = Axes.Both };
+    }
+}

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

@@ -1,31 +1,28 @@
 // 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 System.Linq;
-using osu.Framework.Configuration;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Game.Graphics.Sprites;
-using osu.Game.Users;
 
 namespace osu.Game.Screens.Multi.Components
 {
-    public class ParticipantCountDisplay : CompositeDrawable
+    public class ParticipantCountDisplay : MultiplayerComposite
     {
         private const float text_size = 30;
         private const float transition_duration = 100;
 
-        private readonly OsuSpriteText slash, maxText;
+        private OsuSpriteText slash, maxText;
-
-        public readonly IBindable<IEnumerable<User>> Participants = new Bindable<IEnumerable<User>>();
-        public readonly IBindable<int> ParticipantCount = new Bindable<int>();
-        public readonly IBindable<int?> MaxParticipants = new Bindable<int?>();
 
         public ParticipantCountDisplay()
         {
             AutoSizeAxes = Axes.Both;
+        }
 
+        [BackgroundDependencyLoader]
+        private void load()
+        {
             OsuSpriteText count;
 
             InternalChild = new FillFlowContainer
@@ -54,9 +51,8 @@ namespace osu.Game.Screens.Multi.Components
                 }
             };
 
-            Participants.BindValueChanged(v => count.Text = v.Count().ToString());
             MaxParticipants.BindValueChanged(_ => updateMax(), true);
-            ParticipantCount.BindValueChanged(v => count.Text = v.ToString("#,0"));
+            ParticipantCount.BindValueChanged(v => count.Text = v.ToString("#,0"), true);
         }
 
         private void updateMax()

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

@@ -13,16 +13,16 @@ using osu.Game.Online.Multiplayer.RoomStatuses;
 
 namespace osu.Game.Screens.Multi.Components
 {
-    public class RoomStatusInfo : CompositeDrawable
+    public class RoomStatusInfo : MultiplayerComposite
     {
-        private readonly RoomBindings bindings = new RoomBindings();
+        public RoomStatusInfo()
-
-        public RoomStatusInfo(Room room)
         {
-            bindings.Room = room;
-
             AutoSizeAxes = Axes.Both;
+        }
 
+        [BackgroundDependencyLoader]
+        private void load()
+        {
             StatusPart statusPart;
             EndDatePart endDatePart;
 
@@ -41,10 +41,10 @@ namespace osu.Game.Screens.Multi.Components
                 }
             };
 
-            statusPart.EndDate.BindTo(bindings.EndDate);
+            statusPart.EndDate.BindTo(EndDate);
-            statusPart.Status.BindTo(bindings.Status);
+            statusPart.Status.BindTo(Status);
-            statusPart.Availability.BindTo(bindings.Availability);
+            statusPart.Availability.BindTo(Availability);
-            endDatePart.EndDate.BindTo(bindings.EndDate);
+            endDatePart.EndDate.BindTo(EndDate);
         }
 
         private class EndDatePart : DrawableDate

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

@@ -0,0 +1,31 @@
+// 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.Configuration;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Game.Graphics;
+using osu.Game.Online.Multiplayer;
+
+namespace osu.Game.Screens.Multi.Components
+{
+    public class StatusColouredContainer : Container
+    {
+        private readonly double transitionDuration;
+
+        [Resolved(typeof(Room), nameof(Room.Status))]
+        private Bindable<RoomStatus> status { get; set; }
+
+        public StatusColouredContainer(double transitionDuration = 100)
+        {
+            this.transitionDuration = transitionDuration;
+        }
+
+        [BackgroundDependencyLoader]
+        private void load(OsuColour colours)
+        {
+            status.BindValueChanged(s => this.FadeColour(s.GetAppropriateColour(colours), transitionDuration), true);
+        }
+    }
+}

osu.Game/Screens/Multi/IRoomManager.cs

@@ -4,7 +4,6 @@
 using System;
 using osu.Framework.Configuration;
 using osu.Game.Online.Multiplayer;
-using osu.Game.Screens.Multi.Lounge.Components;
 
 namespace osu.Game.Screens.Multi
 {
@@ -40,11 +39,5 @@ namespace osu.Game.Screens.Multi
         /// Parts the currently-joined <see cref="Room"/>.
         /// </summary>
         void PartRoom();
-
-        /// <summary>
-        /// Queries for <see cref="Room"/>s matching a new <see cref="FilterCriteria"/>.
-        /// </summary>
-        /// <param name="criteria">The <see cref="FilterCriteria"/> to match.</param>
-        void Filter(FilterCriteria criteria);
     }
 }

osu.Game/Screens/Multi/Lounge/Components/DrawableRoom.cs

@@ -5,12 +5,12 @@ using System;
 using System.Collections.Generic;
 using osu.Framework;
 using osu.Framework.Allocation;
+using osu.Framework.Configuration;
 using osu.Framework.Extensions.Color4Extensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
 using osu.Game.Beatmaps;
-using osu.Game.Beatmaps.Drawables;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.Sprites;
@@ -34,12 +34,8 @@ namespace osu.Game.Screens.Multi.Lounge.Components
 
         public event Action<SelectionState> StateChanged;
 
-        private readonly RoomBindings bindings = new RoomBindings();
-
         private readonly Box selectionBox;
-        private UpdateableBeatmapBackgroundSprite background;
+        private CachedModelDependencyContainer<Room> dependencies;
-        private BeatmapTitle beatmapTitle;
-        private ModeTypeInfo modeTypeInfo;
 
         [Resolved]
         private BeatmapManager beatmaps { get; set; }
@@ -80,7 +76,6 @@ namespace osu.Game.Screens.Multi.Lounge.Components
         public DrawableRoom(Room room)
         {
             Room = room;
-            bindings.Room = room;
 
             RelativeSizeAxes = Axes.X;
             Height = height + SELECTION_BORDER_WIDTH * 2;
@@ -98,13 +93,13 @@ namespace osu.Game.Screens.Multi.Lounge.Components
         [BackgroundDependencyLoader]
         private void load(OsuColour colours)
         {
-            Box sideStrip;
-            ParticipantInfo participantInfo;
-            OsuSpriteText name;
-
             Children = new Drawable[]
             {
-                selectionBox,
+                new StatusColouredContainer(transition_duration)
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    Child = selectionBox
+                },
                 new Container
                 {
                     RelativeSizeAxes = Axes.Both,
@@ -127,10 +122,11 @@ namespace osu.Game.Screens.Multi.Lounge.Components
                                 RelativeSizeAxes = Axes.Both,
                                 Colour = OsuColour.FromHex(@"212121"),
                             },
-                            sideStrip = new Box
+                            new StatusColouredContainer(transition_duration)
                             {
                                 RelativeSizeAxes = Axes.Y,
                                 Width = side_strip_width,
+                                Child = new Box { RelativeSizeAxes = Axes.Both }
                             },
                             new Container
                             {
@@ -138,7 +134,7 @@ namespace osu.Game.Screens.Multi.Lounge.Components
                                 Width = cover_width,
                                 Masking = true,
                                 Margin = new MarginPadding { Left = side_strip_width },
-                                Child = background = new UpdateableBeatmapBackgroundSprite { RelativeSizeAxes = Axes.Both }
+                                Child = new MultiplayerBackgroundSprite { RelativeSizeAxes = Axes.Both }
                             },
                             new Container
                             {
@@ -159,8 +155,8 @@ namespace osu.Game.Screens.Multi.Lounge.Components
                                         Spacing = new Vector2(5f),
                                         Children = new Drawable[]
                                         {
-                                            name = new OsuSpriteText { TextSize = 18 },
+                                            new RoomName { TextSize = 18 },
-                                            participantInfo = new ParticipantInfo(),
+                                            new ParticipantInfo(),
                                         },
                                     },
                                     new FillFlowContainer
@@ -173,11 +169,11 @@ namespace osu.Game.Screens.Multi.Lounge.Components
                                         Spacing = new Vector2(0, 5),
                                         Children = new Drawable[]
                                         {
-                                            new RoomStatusInfo(Room),
+                                            new RoomStatusInfo(),
-                                            beatmapTitle = new BeatmapTitle { TextSize = 14 },
+                                            new BeatmapTitle { TextSize = 14 },
                                         },
                                     },
-                                    modeTypeInfo = new ModeTypeInfo
+                                    new ModeTypeInfo
                                     {
                                         Anchor = Anchor.BottomRight,
                                         Origin = Anchor.BottomRight,
@@ -188,22 +184,13 @@ namespace osu.Game.Screens.Multi.Lounge.Components
                     },
                 },
             };
+        }
 
-            background.Beatmap.BindTo(bindings.CurrentBeatmap);
+        protected override IReadOnlyDependencyContainer CreateChildDependencies(IReadOnlyDependencyContainer parent)
-            modeTypeInfo.Beatmap.BindTo(bindings.CurrentBeatmap);
-            modeTypeInfo.Ruleset.BindTo(bindings.CurrentRuleset);
-            modeTypeInfo.Type.BindTo(bindings.Type);
-            beatmapTitle.Beatmap.BindTo(bindings.CurrentBeatmap);
-            participantInfo.Host.BindTo(bindings.Host);
-            participantInfo.Participants.BindTo(bindings.Participants);
-            participantInfo.ParticipantCount.BindTo(bindings.ParticipantCount);
-
-            bindings.Name.BindValueChanged(n => name.Text = n, true);
-            bindings.Status.BindValueChanged(s =>
         {
-                foreach (Drawable d in new Drawable[] { selectionBox, sideStrip })
+            dependencies = new CachedModelDependencyContainer<Room>(base.CreateChildDependencies(parent));
-                    d.FadeColour(s.GetAppropriateColour(colours), transition_duration);
+            dependencies.Model.Value = Room;
-            }, true);
+            return dependencies;
         }
 
         protected override void LoadComplete()
@@ -211,5 +198,17 @@ namespace osu.Game.Screens.Multi.Lounge.Components
             base.LoadComplete();
             this.FadeInFromZero(transition_duration);
         }
+
+        private class RoomName : OsuSpriteText
+        {
+            [Resolved(typeof(Room), nameof(Online.Multiplayer.Room.Name))]
+            private Bindable<string> name { get; set; }
+
+            [BackgroundDependencyLoader]
+            private void load()
+            {
+                Current = name;
+            }
+        }
     }
 }

osu.Game/Screens/Multi/Lounge/Components/FilterControl.cs

@@ -2,6 +2,8 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System.ComponentModel;
+using osu.Framework.Allocation;
+using osu.Framework.Configuration;
 using osu.Game.Graphics;
 using osu.Game.Overlays.SearchableList;
 using osuTK.Graphics;
@@ -15,18 +17,39 @@ namespace osu.Game.Screens.Multi.Lounge.Components
 
         protected override float ContentHorizontalPadding => base.ContentHorizontalPadding + OsuScreen.HORIZONTAL_OVERFLOW_PADDING;
 
+        [Resolved(CanBeNull = true)]
+        private Bindable<FilterCriteria> filter { get; set; }
+
         public FilterControl()
         {
             DisplayStyleControl.Hide();
         }
 
-        public FilterCriteria CreateCriteria() => new FilterCriteria
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            if (filter == null)
+                filter = new Bindable<FilterCriteria>();
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            Search.Current.BindValueChanged(_ => updateFilter());
+            Tabs.Current.BindValueChanged(_ => updateFilter(), true);
+        }
+
+        private void updateFilter()
+        {
+            filter.Value = new FilterCriteria
             {
                 SearchString = Search.Current.Value ?? string.Empty,
                 PrimaryFilter = Tabs.Current,
                 SecondaryFilter = DisplayStyleControl.Dropdown.Current
             };
         }
+    }
 
     public enum PrimaryFilter
     {

osu.Game/Screens/Multi/Lounge/Components/ParticipantInfo.cs

@@ -1,10 +1,8 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-using System.Collections.Generic;
 using Humanizer;
 using osu.Framework.Allocation;
-using osu.Framework.Configuration;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Game.Graphics;
@@ -16,26 +14,24 @@ using osuTK;
 
 namespace osu.Game.Screens.Multi.Lounge.Components
 {
-    public class ParticipantInfo : Container
+    public class ParticipantInfo : MultiplayerComposite
     {
-        private readonly FillFlowContainer summaryContainer;
-
-        public readonly IBindable<User> Host = new Bindable<User>();
-        public readonly IBindable<IEnumerable<User>> Participants = new Bindable<IEnumerable<User>>();
-        public readonly IBindable<int> ParticipantCount = new Bindable<int>();
-
         public ParticipantInfo()
         {
-            OsuSpriteText summary;
             RelativeSizeAxes = Axes.X;
             Height = 15f;
+        }
 
+        [BackgroundDependencyLoader]
+        private void load(OsuColour colours)
+        {
+            OsuSpriteText summary;
             OsuSpriteText levelRangeHigher;
             OsuSpriteText levelRangeLower;
             Container flagContainer;
             LinkFlowContainer hostText;
 
-            Children = new Drawable[]
+            InternalChildren = new Drawable[]
             {
                 new FillFlowContainer
                 {
@@ -73,12 +69,13 @@ namespace osu.Game.Screens.Multi.Lounge.Components
                         }
                     },
                 },
-                summaryContainer = new FillFlowContainer
+                new FillFlowContainer
                 {
                     Anchor = Anchor.CentreRight,
                     Origin = Anchor.CentreRight,
                     AutoSizeAxes = Axes.Both,
                     Direction = FillDirection.Horizontal,
+                    Colour = colours.Gray9,
                     Children = new[]
                     {
                         summary = new OsuSpriteText
@@ -101,9 +98,9 @@ namespace osu.Game.Screens.Multi.Lounge.Components
                     hostText.AddLink(v.Username, null, LinkAction.OpenUserProfile, v.Id.ToString(), "Open profile", s => s.Font = "Exo2.0-BoldItalic");
                     flagContainer.Child = new DrawableFlag(v.Country) { RelativeSizeAxes = Axes.Both };
                 }
-            });
+            }, true);
 
-            ParticipantCount.BindValueChanged(v => summary.Text = $"{v:#,0}{" participant".Pluralize(v == 1)}");
+            ParticipantCount.BindValueChanged(v => summary.Text = $"{v:#,0}{" participant".Pluralize(v == 1)}", true);
 
             /*Participants.BindValueChanged(v =>
             {
@@ -112,11 +109,5 @@ namespace osu.Game.Screens.Multi.Lounge.Components
                 levelRangeHigher.Text = ranks.Max().ToString();
             });*/
         }
-
-        [BackgroundDependencyLoader]
-        private void load(OsuColour colours)
-        {
-            summaryContainer.Colour = colours.Gray9;
-        }
     }
 }

osu.Game/Screens/Multi/Lounge/Components/RoomInspector.cs

@@ -11,7 +11,6 @@ using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Cursor;
 using osu.Framework.Graphics.Shapes;
 using osu.Game.Beatmaps;
-using osu.Game.Beatmaps.Drawables;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Online.API;
@@ -24,34 +23,26 @@ using osuTK.Graphics;
 
 namespace osu.Game.Screens.Multi.Lounge.Components
 {
-    public class RoomInspector : Container
+    public class RoomInspector : MultiplayerComposite
     {
         private const float transition_duration = 100;
 
-        public readonly IBindable<Room> Room = new Bindable<Room>();
-
         private readonly MarginPadding contentPadding = new MarginPadding { Horizontal = 20, Vertical = 10 };
 
-        private readonly RoomBindings bindings = new RoomBindings();
-
-        private OsuColour colours;
-        private Box statusStrip;
-        private UpdateableBeatmapBackgroundSprite background;
         private ParticipantCountDisplay participantCount;
-        private OsuSpriteText name, status;
+        private OsuSpriteText name;
         private BeatmapTypeInfo beatmapTypeInfo;
         private ParticipantInfo participantInfo;
-        private MatchParticipants participants;
 
         [Resolved]
         private BeatmapManager beatmaps { get; set; }
 
+        private readonly Bindable<RoomStatus> status = new Bindable<RoomStatus>(new RoomStatusNoneSelected());
+
         [BackgroundDependencyLoader]
         private void load(OsuColour colours)
         {
-            this.colours = colours;
+            InternalChildren = new Drawable[]
-
-            Children = new Drawable[]
             {
                 new Box
                 {
@@ -84,7 +75,7 @@ namespace osu.Game.Screens.Multi.Lounge.Components
                                         Masking = true,
                                         Children = new Drawable[]
                                         {
-                                            background = new UpdateableBeatmapBackgroundSprite { RelativeSizeAxes = Axes.Both },
+                                            new MultiplayerBackgroundSprite { RelativeSizeAxes = Axes.Both },
                                             new Box
                                             {
                                                 RelativeSizeAxes = Axes.Both,
@@ -106,15 +97,17 @@ namespace osu.Game.Screens.Multi.Lounge.Components
                                                         Anchor = Anchor.BottomLeft,
                                                         Origin = Anchor.BottomLeft,
                                                         TextSize = 30,
+                                                        Current = Name
                                                     },
                                                 },
                                             },
                                         },
                                     },
-                                    statusStrip = new Box
+                                    new StatusColouredContainer(transition_duration)
                                     {
                                         RelativeSizeAxes = Axes.X,
                                         Height = 5,
+                                        Child = new Box { RelativeSizeAxes = Axes.Both }
                                     },
                                     new Container
                                     {
@@ -137,10 +130,14 @@ namespace osu.Game.Screens.Multi.Lounge.Components
                                                 Spacing = new Vector2(0f, 5f),
                                                 Children = new Drawable[]
                                                 {
-                                                    status = new OsuSpriteText
+                                                    new StatusColouredContainer(transition_duration)
+                                                    {
+                                                        AutoSizeAxes = Axes.Both,
+                                                        Child = new StatusText
                                                         {
                                                             TextSize = 14,
                                                             Font = @"Exo2.0-Bold",
+                                                        }
                                                     },
                                                     beatmapTypeInfo = new BeatmapTypeInfo(),
                                                 },
@@ -162,7 +159,7 @@ namespace osu.Game.Screens.Multi.Lounge.Components
                         },
                         new Drawable[]
                         {
-                            participants = new MatchParticipants
+                            new MatchParticipants
                             {
                                 RelativeSizeAxes = Axes.Both,
                             }
@@ -171,51 +168,37 @@ namespace osu.Game.Screens.Multi.Lounge.Components
                 }
             };
 
-            participantInfo.Host.BindTo(bindings.Host);
+            Status.BindValueChanged(_ => updateStatus(), true);
-            participantInfo.ParticipantCount.BindTo(bindings.ParticipantCount);
+            RoomID.BindValueChanged(_ => updateStatus(), true);
-            participantInfo.Participants.BindTo(bindings.Participants);
-            participantCount.Participants.BindTo(bindings.Participants);
-            participantCount.ParticipantCount.BindTo(bindings.ParticipantCount);
-            participantCount.MaxParticipants.BindTo(bindings.MaxParticipants);
-            beatmapTypeInfo.Beatmap.BindTo(bindings.CurrentBeatmap);
-            beatmapTypeInfo.Ruleset.BindTo(bindings.CurrentRuleset);
-            beatmapTypeInfo.Type.BindTo(bindings.Type);
-            background.Beatmap.BindTo(bindings.CurrentBeatmap);
-            bindings.Status.BindValueChanged(displayStatus);
-            bindings.Name.BindValueChanged(n => name.Text = n);
-            Room.BindValueChanged(updateRoom, true);
         }
 
-        private void updateRoom(Room room)
+        protected override IReadOnlyDependencyContainer CreateChildDependencies(IReadOnlyDependencyContainer parent)
         {
-            bindings.Room = room;
+            var dependencies = new DependencyContainer(base.CreateChildDependencies(parent));
-            participants.Room = room;
+            dependencies.CacheAs(status, new CacheInfo(nameof(Room.Status), typeof(Room)));
+            return dependencies;
+        }
 
-            if (room != null)
+        private void updateStatus()
         {
+            if (RoomID.Value == null)
+            {
+                status.Value = new RoomStatusNoneSelected();
+
+                participantCount.FadeOut(transition_duration);
+                beatmapTypeInfo.FadeOut(transition_duration);
+                name.FadeOut(transition_duration);
+                participantInfo.FadeOut(transition_duration);
+            }
+            else
+            {
+                status.Value = Status;
+
                 participantCount.FadeIn(transition_duration);
                 beatmapTypeInfo.FadeIn(transition_duration);
                 name.FadeIn(transition_duration);
                 participantInfo.FadeIn(transition_duration);
             }
-            else
-            {
-                participantCount.FadeOut(transition_duration);
-                beatmapTypeInfo.FadeOut(transition_duration);
-                name.FadeOut(transition_duration);
-                participantInfo.FadeOut(transition_duration);
-
-                displayStatus(new RoomStatusNoneSelected());
-            }
-        }
-
-        private void displayStatus(RoomStatus s)
-        {
-            status.Text = s.Message;
-
-            Color4 c = s.GetAppropriateColour(colours);
-            statusStrip.FadeColour(c, transition_duration);
-            status.FadeColour(c, transition_duration);
         }
 
         private class RoomStatusNoneSelected : RoomStatus
@@ -224,24 +207,22 @@ namespace osu.Game.Screens.Multi.Lounge.Components
             public override Color4 GetAppropriateColour(OsuColour colours) => colours.Gray8;
         }
 
-        private class MatchParticipants : CompositeDrawable
+        private class StatusText : OsuSpriteText
+        {
+            [Resolved(typeof(Room), nameof(Room.Status))]
+            private Bindable<RoomStatus> status { get; set; }
+
+            [BackgroundDependencyLoader]
+            private void load()
+            {
+                status.BindValueChanged(s => Text = s.Message, true);
+            }
+        }
+
+        private class MatchParticipants : MultiplayerComposite
         {
-            private Room room;
             private readonly FillFlowContainer fill;
 
-            public Room Room
-            {
-                get { return room; }
-                set
-                {
-                    if (room == value)
-                        return;
-
-                    room = value;
-                    updateParticipants();
-                }
-            }
-
             public MatchParticipants()
             {
                 Padding = new MarginPadding { Horizontal = 10 };
@@ -259,6 +240,12 @@ namespace osu.Game.Screens.Multi.Lounge.Components
                 };
             }
 
+            [BackgroundDependencyLoader]
+            private void load()
+            {
+                RoomID.BindValueChanged(_ => updateParticipants(), true);
+            }
+
             [Resolved]
             private APIAccess api { get; set; }
 
@@ -266,7 +253,7 @@ namespace osu.Game.Screens.Multi.Lounge.Components
 
             private void updateParticipants()
             {
-                var roomId = room?.RoomID.Value ?? 0;
+                var roomId = RoomID.Value ?? 0;
 
                 request?.Cancel();
 
@@ -284,7 +271,7 @@ namespace osu.Game.Screens.Multi.Lounge.Components
                 request = new GetRoomScoresRequest(roomId);
                 request.Success += scores =>
                 {
-                    if (roomId != room.RoomID.Value)
+                    if (roomId != RoomID.Value)
                         return;
 
                     fill.Clear();

osu.Game/Screens/Multi/Lounge/Components/RoomsContainer.cs

@@ -19,14 +19,14 @@ namespace osu.Game.Screens.Multi.Lounge.Components
     {
         public Action<Room> JoinRequested;
 
-        private readonly Bindable<Room> selectedRoom = new Bindable<Room>();
-        public IBindable<Room> SelectedRoom => selectedRoom;
-
         private readonly IBindableList<Room> rooms = new BindableList<Room>();
 
         private readonly FillFlowContainer<DrawableRoom> roomFlow;
         public IReadOnlyList<DrawableRoom> Rooms => roomFlow;
 
+        [Resolved]
+        private Bindable<Room> currentRoom { get; set; }
+
         [Resolved]
         private IRoomManager roomManager { get; set; }
 
@@ -121,7 +121,7 @@ namespace osu.Game.Screens.Multi.Lounge.Components
             else
                 roomFlow.Children.ForEach(r => r.State = r.Room == room ? SelectionState.Selected : SelectionState.NotSelected);
 
-            selectedRoom.Value = room;
+            currentRoom.Value = room;
         }
 
         protected override void Dispose(bool isDisposing)

osu.Game/Screens/Multi/Lounge/LoungeSubScreen.cs

@@ -2,6 +2,8 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System;
+using osu.Framework.Allocation;
+using osu.Framework.Configuration;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Input.Events;
@@ -21,16 +23,16 @@ namespace osu.Game.Screens.Multi.Lounge
         protected readonly FilterControl Filter;
 
         private readonly Container content;
-        private readonly RoomsContainer rooms;
         private readonly Action<Screen> pushGameplayScreen;
         private readonly ProcessingOverlay processingOverlay;
 
+        [Resolved]
+        private Bindable<Room> currentRoom { get; set; }
+
         public LoungeSubScreen(Action<Screen> pushGameplayScreen)
         {
             this.pushGameplayScreen = pushGameplayScreen;
 
-            RoomInspector inspector;
-
             InternalChildren = new Drawable[]
             {
                 Filter = new FilterControl { Depth = -1 },
@@ -54,13 +56,13 @@ namespace osu.Game.Screens.Multi.Lounge
                                     {
                                         RelativeSizeAxes = Axes.X,
                                         AutoSizeAxes = Axes.Y,
-                                        Child = rooms = new RoomsContainer { JoinRequested = joinRequested }
+                                        Child = new RoomsContainer { JoinRequested = joinRequested }
                                     },
                                 },
                                 processingOverlay = new ProcessingOverlay { Alpha = 0 }
                             }
                         },
-                        inspector = new RoomInspector
+                        new RoomInspector
                         {
                             Anchor = Anchor.TopRight,
                             Origin = Anchor.TopRight,
@@ -71,10 +73,6 @@ namespace osu.Game.Screens.Multi.Lounge
                 },
             };
 
-            inspector.Room.BindTo(rooms.SelectedRoom);
-
-            Filter.Search.Current.ValueChanged += s => filterRooms();
-            Filter.Tabs.Current.ValueChanged += t => filterRooms();
             Filter.Search.Exit += this.Exit;
         }
 
@@ -113,18 +111,12 @@ namespace osu.Game.Screens.Multi.Lounge
             Filter.Search.HoldFocus = false;
         }
 
-        private void filterRooms()
-        {
-            rooms.Filter(Filter.CreateCriteria());
-            Manager?.Filter(Filter.CreateCriteria());
-        }
-
         private void joinRequested(Room room)
         {
             processingOverlay.Show();
             Manager?.JoinRoom(room, r =>
             {
-                Push(room);
+                Open(room);
                 processingOverlay.Hide();
             }, _ => processingOverlay.Hide());
         }
@@ -132,12 +124,14 @@ namespace osu.Game.Screens.Multi.Lounge
         /// <summary>
         /// Push a room as a new subscreen.
         /// </summary>
-        public void Push(Room room)
+        public void Open(Room room)
         {
             // Handles the case where a room is clicked 3 times in quick succession
             if (!this.IsCurrentScreen())
                 return;
 
+            currentRoom.Value = room;
+
             this.Push(new MatchSubScreen(room, s => pushGameplayScreen?.Invoke(s)));
         }
     }

osu.Game/Screens/Multi/Match/Components/Header.cs

@@ -20,31 +20,27 @@ using osuTK.Graphics;
 
 namespace osu.Game.Screens.Multi.Match.Components
 {
-    public class Header : Container
+    public class Header : MultiplayerComposite
     {
         public const float HEIGHT = 200;
 
-        private readonly RoomBindings bindings = new RoomBindings();
+        public MatchTabControl Tabs;
 
-        private readonly Box tabStrip;
+        public Action RequestBeatmapSelection;
 
-        public readonly MatchTabControl Tabs;
+        public Header()
-
-        public Action OnRequestSelectBeatmap;
-
-        public Header(Room room)
         {
             RelativeSizeAxes = Axes.X;
             Height = HEIGHT;
+        }
 
-            bindings.Room = room;
+        [BackgroundDependencyLoader]
-
+        private void load(OsuColour colours)
-            BeatmapTypeInfo beatmapTypeInfo;
+        {
             BeatmapSelectButton beatmapButton;
-            UpdateableBeatmapBackgroundSprite background;
             ModDisplay modDisplay;
 
-            Children = new Drawable[]
+            InternalChildren = new Drawable[]
             {
                 new Container
                 {
@@ -52,7 +48,7 @@ namespace osu.Game.Screens.Multi.Match.Components
                     Masking = true,
                     Children = new Drawable[]
                     {
-                        background = new HeaderBeatmapBackgroundSprite { RelativeSizeAxes = Axes.Both },
+                        new HeaderBackgroundSprite { RelativeSizeAxes = Axes.Both },
                         new Box
                         {
                             RelativeSizeAxes = Axes.Both,
@@ -60,12 +56,13 @@ namespace osu.Game.Screens.Multi.Match.Components
                         },
                     }
                 },
-                tabStrip = new Box
+                new Box
                 {
                     Anchor = Anchor.BottomLeft,
                     Origin = Anchor.BottomLeft,
                     RelativeSizeAxes = Axes.X,
                     Height = 1,
+                    Colour = colours.Yellow
                 },
                 new Container
                 {
@@ -80,7 +77,7 @@ namespace osu.Game.Screens.Multi.Match.Components
                             Direction = FillDirection.Vertical,
                             Children = new Drawable[]
                             {
-                                beatmapTypeInfo = new BeatmapTypeInfo(),
+                                new BeatmapTypeInfo(),
                                 modDisplay = new ModDisplay
                                 {
                                     Scale = new Vector2(0.75f),
@@ -95,13 +92,13 @@ namespace osu.Game.Screens.Multi.Match.Components
                             RelativeSizeAxes = Axes.Y,
                             Width = 200,
                             Padding = new MarginPadding { Vertical = 10 },
-                            Child = beatmapButton = new BeatmapSelectButton(room)
+                            Child = beatmapButton = new BeatmapSelectButton
                             {
                                 RelativeSizeAxes = Axes.Both,
                                 Height = 1,
                             },
                         },
-                        Tabs = new MatchTabControl(room)
+                        Tabs = new MatchTabControl
                         {
                             Anchor = Anchor.BottomLeft,
                             Origin = Anchor.BottomLeft,
@@ -111,37 +108,36 @@ namespace osu.Game.Screens.Multi.Match.Components
                 },
             };
 
-            beatmapTypeInfo.Beatmap.BindTo(bindings.CurrentBeatmap);
+            CurrentMods.BindValueChanged(m => modDisplay.Current.Value = m, true);
-            beatmapTypeInfo.Ruleset.BindTo(bindings.CurrentRuleset);
-            beatmapTypeInfo.Type.BindTo(bindings.Type);
-            background.Beatmap.BindTo(bindings.CurrentBeatmap);
-            bindings.CurrentMods.BindValueChanged(m => modDisplay.Current.Value = m, true);
 
-            beatmapButton.Action = () => OnRequestSelectBeatmap?.Invoke();
+            beatmapButton.Action = () => RequestBeatmapSelection?.Invoke();
-        }
-
-        [BackgroundDependencyLoader]
-        private void load(OsuColour colours)
-        {
-            tabStrip.Colour = colours.Yellow;
         }
 
         private class BeatmapSelectButton : HeaderButton
         {
-            private readonly IBindable<int?> roomIDBind = new Bindable<int?>();
+            [Resolved(typeof(Room), nameof(Room.RoomID))]
+            private Bindable<int?> roomId { get; set; }
 
-            public BeatmapSelectButton(Room room)
+            public BeatmapSelectButton()
             {
                 Text = "Select beatmap";
+            }
 
-                roomIDBind.BindTo(room.RoomID);
+            [BackgroundDependencyLoader]
-                roomIDBind.BindValueChanged(v => this.FadeTo(v.HasValue ? 0 : 1), true);
+            private void load()
+            {
+                roomId.BindValueChanged(v => this.FadeTo(v.HasValue ? 0 : 1), true);
             }
         }
 
-        private class HeaderBeatmapBackgroundSprite : UpdateableBeatmapBackgroundSprite
+        private class HeaderBackgroundSprite : MultiplayerBackgroundSprite
+        {
+            protected override UpdateableBeatmapBackgroundSprite CreateBackgroundSprite() => new BackgroundSprite { RelativeSizeAxes = Axes.Both };
+
+            private class BackgroundSprite : UpdateableBeatmapBackgroundSprite
             {
                 protected override double FadeDuration => 200;
             }
         }
     }
+}

osu.Game/Screens/Multi/Match/Components/Info.cs

@@ -2,35 +2,37 @@
 // 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.Shapes;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Sprites;
-using osu.Game.Online.Multiplayer;
 using osu.Game.Overlays.SearchableList;
 using osu.Game.Screens.Multi.Components;
 using osuTK;
 
 namespace osu.Game.Screens.Multi.Match.Components
 {
-    public class Info : Container
+    public class Info : MultiplayerComposite
     {
         public Action OnStart;
 
-        private readonly RoomBindings bindings = new RoomBindings();
+        public Info()
-
-        public Info(Room room)
         {
             RelativeSizeAxes = Axes.X;
             AutoSizeAxes = Axes.Y;
+        }
 
+        [BackgroundDependencyLoader]
+        private void load()
+        {
             ReadyButton readyButton;
             ViewBeatmapButton viewBeatmapButton;
             HostInfo hostInfo;
             RoomStatusInfo statusInfo;
 
-            Children = new Drawable[]
+            InternalChildren = new Drawable[]
             {
                 new Box
                 {
@@ -61,9 +63,9 @@ namespace osu.Game.Screens.Multi.Match.Components
                                         new OsuSpriteText
                                         {
                                             TextSize = 30,
-                                            Current = bindings.Name
+                                            Current = Name
                                         },
-                                        new RoomStatusInfo(room),
+                                        new RoomStatusInfo(),
                                     }
                                 },
                                 hostInfo = new HostInfo(),
@@ -80,7 +82,7 @@ namespace osu.Game.Screens.Multi.Match.Components
                             Children = new Drawable[]
                             {
                                 viewBeatmapButton = new ViewBeatmapButton(),
-                                readyButton = new ReadyButton(room)
+                                readyButton = new ReadyButton
                                 {
                                     Action = () => OnStart?.Invoke()
                                 }
@@ -90,11 +92,9 @@ namespace osu.Game.Screens.Multi.Match.Components
                 },
             };
 
-            viewBeatmapButton.Beatmap.BindTo(bindings.CurrentBeatmap);
+            viewBeatmapButton.Beatmap.BindTo(CurrentBeatmap);
-            readyButton.Beatmap.BindTo(bindings.CurrentBeatmap);
+            readyButton.Beatmap.BindTo(CurrentBeatmap);
-            hostInfo.Host.BindTo(bindings.Host);
+            hostInfo.Host.BindTo(Host);
-
-            bindings.Room = room;
         }
     }
 }

osu.Game/Screens/Multi/Match/Components/MatchChatDisplay.cs

@@ -2,6 +2,7 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using osu.Framework.Allocation;
+using osu.Framework.Configuration;
 using osu.Game.Online.Chat;
 using osu.Game.Online.Multiplayer;
 
@@ -9,28 +10,31 @@ namespace osu.Game.Screens.Multi.Match.Components
 {
     public class MatchChatDisplay : StandAloneChatDisplay
     {
-        private readonly Room room;
+        [Resolved(typeof(Room), nameof(Room.RoomID))]
+        private Bindable<int?> roomId { get; set; }
+
+        [Resolved(typeof(Room), nameof(Room.ChannelId))]
+        private Bindable<int> channelId { get; set; }
 
         [Resolved(CanBeNull = true)]
         private ChannelManager channelManager { get; set; }
 
-        public MatchChatDisplay(Room room)
+        public MatchChatDisplay()
             : base(true)
         {
-            this.room = room;
         }
 
         protected override void LoadComplete()
         {
             base.LoadComplete();
 
-            room.RoomID.BindValueChanged(v => updateChannel(), true);
+            roomId.BindValueChanged(v => updateChannel(), true);
         }
 
         private void updateChannel()
         {
-            if (room.RoomID.Value != null)
+            if (roomId.Value != null)
-                Channel.Value = channelManager?.JoinChannel(new Channel { Id = room.ChannelId, Type = ChannelType.Multiplayer, Name = $"#mp_{room.RoomID}" });
+                Channel.Value = channelManager?.JoinChannel(new Channel { Id = channelId, Type = ChannelType.Multiplayer, Name = $"#mp_{roomId.Value}" });
         }
     }
 }

osu.Game/Screens/Multi/Match/Components/MatchLeaderboard.cs

@@ -4,6 +4,7 @@
 using System;
 using System.Collections.Generic;
 using osu.Framework.Allocation;
+using osu.Framework.Configuration;
 using osu.Game.Online.API;
 using osu.Game.Online.API.Requests;
 using osu.Game.Online.API.Requests.Responses;
@@ -16,18 +17,13 @@ namespace osu.Game.Screens.Multi.Match.Components
     {
         public Action<IEnumerable<APIRoomScoreInfo>> ScoresLoaded;
 
-        public Room Room
+        [Resolved(typeof(Room), nameof(Room.RoomID))]
-        {
+        private Bindable<int?> roomId { get; set; }
-            get => bindings.Room;
-            set => bindings.Room = value;
-        }
-
-        private readonly RoomBindings bindings = new RoomBindings();
 
         [BackgroundDependencyLoader]
         private void load()
         {
-            bindings.RoomID.BindValueChanged(id =>
+            roomId.BindValueChanged(id =>
             {
                 if (id == null)
                     return;
@@ -39,10 +35,10 @@ namespace osu.Game.Screens.Multi.Match.Components
 
         protected override APIRequest FetchScores(Action<IEnumerable<APIRoomScoreInfo>> scoresCallback)
         {
-            if (bindings.RoomID.Value == null)
+            if (roomId.Value == null)
                 return null;
 
-            var req = new GetRoomScoresRequest(bindings.RoomID.Value ?? 0);
+            var req = new GetRoomScoresRequest(roomId.Value ?? 0);
 
             req.Success += r =>
             {

osu.Game/Screens/Multi/Match/Components/MatchSettingsOverlay.cs

@@ -4,6 +4,7 @@
 using System;
 using Humanizer;
 using osu.Framework.Allocation;
+using osu.Framework.Configuration;
 using osu.Framework.Extensions.Color4Extensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
@@ -22,43 +23,56 @@ namespace osu.Game.Screens.Multi.Match.Components
     {
         private const float transition_duration = 350;
         private const float field_padding = 45;
+
+        protected MatchSettings Settings { get; private set; }
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            Masking = true;
+
+            Child = Settings = new MatchSettings
+            {
+                RelativeSizeAxes = Axes.Both,
+                RelativePositionAxes = Axes.Y
+            };
+        }
+
+        protected override void PopIn()
+        {
+            Settings.MoveToY(0, transition_duration, Easing.OutQuint);
+        }
+
+        protected override void PopOut()
+        {
+            Settings.MoveToY(-1, transition_duration, Easing.InSine);
+        }
+
+        protected class MatchSettings : MultiplayerComposite
+        {
             private const float disabled_alpha = 0.2f;
 
-        private readonly RoomBindings bindings = new RoomBindings();
+            public OsuTextBox NameField, MaxParticipantsField;
+            public OsuDropdown<TimeSpan> DurationField;
+            public RoomAvailabilityPicker AvailabilityPicker;
+            public GameTypePicker TypePicker;
+            public TriangleButton ApplyButton;
 
-        private readonly Container content;
+            public OsuSpriteText ErrorText;
 
-        private readonly OsuSpriteText typeLabel;
+            private OsuSpriteText typeLabel;
-
+            private ProcessingOverlay processingOverlay;
-        protected readonly OsuTextBox NameField, MaxParticipantsField;
-        protected readonly OsuDropdown<TimeSpan> DurationField;
-        protected readonly RoomAvailabilityPicker AvailabilityPicker;
-        protected readonly GameTypePicker TypePicker;
-        protected readonly TriangleButton ApplyButton;
-        protected readonly OsuPasswordTextBox PasswordField;
-
-        protected readonly OsuSpriteText ErrorText;
-
-        private readonly ProcessingOverlay processingOverlay;
-
-        private readonly Room room;
 
             [Resolved(CanBeNull = true)]
             private IRoomManager manager { get; set; }
 
-        public MatchSettingsOverlay(Room room)
+            [Resolved]
+            private Bindable<Room> currentRoom { get; set; }
+
+            [BackgroundDependencyLoader]
+            private void load(OsuColour colours)
             {
-            this.room = room;
+                InternalChildren = new Drawable[]
-
-            bindings.Room = room;
-
-            Masking = true;
-
-            Child = content = new Container
-            {
-                RelativeSizeAxes = Axes.Both,
-                RelativePositionAxes = Axes.Y,
-                Children = new Drawable[]
                 {
                     new Box
                     {
@@ -111,7 +125,10 @@ namespace osu.Game.Screens.Multi.Match.Components
                                                         new Section("Room visibility")
                                                         {
                                                             Alpha = disabled_alpha,
-                                                            Child = AvailabilityPicker = new RoomAvailabilityPicker(),
+                                                            Child = AvailabilityPicker = new RoomAvailabilityPicker
+                                                            {
+                                                                Enabled = { Value = false }
+                                                            },
                                                         },
                                                         new Section("Game type")
                                                         {
@@ -127,10 +144,12 @@ namespace osu.Game.Screens.Multi.Match.Components
                                                                     TypePicker = new GameTypePicker
                                                                     {
                                                                         RelativeSizeAxes = Axes.X,
+                                                                        Enabled = { Value = false }
                                                                     },
                                                                     typeLabel = new OsuSpriteText
                                                                     {
                                                                         TextSize = 14,
+                                                                        Colour = colours.Yellow
                                                                     },
                                                                 },
                                                             },
@@ -151,7 +170,8 @@ namespace osu.Game.Screens.Multi.Match.Components
                                                             {
                                                                 RelativeSizeAxes = Axes.X,
                                                                 TabbableContentContainer = this,
-                                                                OnCommit = (sender, text) => apply(),
+                                                                ReadOnly = true,
+                                                                OnCommit = (sender, text) => apply()
                                                             },
                                                         },
                                                         new Section("Duration")
@@ -177,10 +197,11 @@ namespace osu.Game.Screens.Multi.Match.Components
                                                         new Section("Password (optional)")
                                                         {
                                                             Alpha = disabled_alpha,
-                                                            Child = PasswordField = new SettingsPasswordTextBox
+                                                            Child = new SettingsPasswordTextBox
                                                             {
                                                                 RelativeSizeAxes = Axes.X,
                                                                 TabbableContentContainer = this,
+                                                                ReadOnly = true,
                                                                 OnCommit = (sender, text) => apply()
                                                             },
                                                         },
@@ -222,6 +243,7 @@ namespace osu.Game.Screens.Multi.Match.Components
                                                     Anchor = Anchor.BottomCentre,
                                                     Origin = Anchor.BottomCentre,
                                                     Size = new Vector2(230, 55),
+                                                    Enabled = { Value = false },
                                                     Action = apply,
                                                 },
                                                 ErrorText = new OsuSpriteText
@@ -229,7 +251,8 @@ namespace osu.Game.Screens.Multi.Match.Components
                                                     Anchor = Anchor.BottomCentre,
                                                     Origin = Anchor.BottomCentre,
                                                     Alpha = 0,
-                                                    Depth = 1
+                                                    Depth = 1,
+                                                    Colour = colours.RedDark
                                                 }
                                             }
                                         }
@@ -239,29 +262,14 @@ namespace osu.Game.Screens.Multi.Match.Components
                         }
                     },
                     processingOverlay = new ProcessingOverlay { Alpha = 0 }
-                },
                 };
 
-            TypePicker.Current.ValueChanged += t => typeLabel.Text = t.Name;
+                TypePicker.Current.BindValueChanged(t => typeLabel.Text = t?.Name ?? string.Empty, true);
-
+                Name.BindValueChanged(n => NameField.Text = n, true);
-            bindings.Name.BindValueChanged(n => NameField.Text = n, true);
+                Availability.BindValueChanged(a => AvailabilityPicker.Current.Value = a, true);
-            bindings.Availability.BindValueChanged(a => AvailabilityPicker.Current.Value = a, true);
+                Type.BindValueChanged(t => TypePicker.Current.Value = t, true);
-            bindings.Type.BindValueChanged(t => TypePicker.Current.Value = t, true);
+                MaxParticipants.BindValueChanged(m => MaxParticipantsField.Text = m?.ToString(), true);
-            bindings.MaxParticipants.BindValueChanged(m => MaxParticipantsField.Text = m?.ToString(), true);
+                Duration.BindValueChanged(d => DurationField.Current.Value = d, true);
-            bindings.Duration.BindValueChanged(d => DurationField.Current.Value = d, true);
-        }
-
-        [BackgroundDependencyLoader]
-        private void load(OsuColour colours)
-        {
-            typeLabel.Colour = colours.Yellow;
-            ErrorText.Colour = colours.RedDark;
-
-            MaxParticipantsField.ReadOnly = true;
-            PasswordField.ReadOnly = true;
-            AvailabilityPicker.Enabled.Value = false;
-            TypePicker.Enabled.Value = false;
-            ApplyButton.Enabled.Value = false;
             }
 
             protected override void Update()
@@ -271,34 +279,24 @@ namespace osu.Game.Screens.Multi.Match.Components
                 ApplyButton.Enabled.Value = hasValidSettings;
             }
 
-        private bool hasValidSettings => bindings.Room.RoomID.Value == null && NameField.Text.Length > 0 && bindings.Playlist.Count > 0;
+            private bool hasValidSettings => RoomID.Value == null && NameField.Text.Length > 0 && Playlist.Count > 0;
-
-        protected override void PopIn()
-        {
-            content.MoveToY(0, transition_duration, Easing.OutQuint);
-        }
-
-        protected override void PopOut()
-        {
-            content.MoveToY(-1, transition_duration, Easing.InSine);
-        }
 
             private void apply()
             {
                 hideError();
 
-            bindings.Name.Value = NameField.Text;
+                Name.Value = NameField.Text;
-            bindings.Availability.Value = AvailabilityPicker.Current.Value;
+                Availability.Value = AvailabilityPicker.Current.Value;
-            bindings.Type.Value = TypePicker.Current.Value;
+                Type.Value = TypePicker.Current.Value;
 
                 if (int.TryParse(MaxParticipantsField.Text, out int max))
-                bindings.MaxParticipants.Value = max;
+                    MaxParticipants.Value = max;
                 else
-                bindings.MaxParticipants.Value = null;
+                    MaxParticipants.Value = null;
 
-            bindings.Duration.Value = DurationField.Current.Value;
+                Duration.Value = DurationField.Current.Value;
 
-            manager?.CreateRoom(room, onSuccess, onError);
+                manager?.CreateRoom(currentRoom, onSuccess, onError);
 
                 processingOverlay.Show();
             }
@@ -314,6 +312,7 @@ namespace osu.Game.Screens.Multi.Match.Components
 
                 processingOverlay.Hide();
             }
+        }
 
         private class SettingsTextBox : OsuTextBox
         {

osu.Game/Screens/Multi/Match/Components/MatchTabControl.cs

@@ -14,12 +14,11 @@ namespace osu.Game.Screens.Multi.Match.Components
 {
     public class MatchTabControl : PageTabControl<MatchPage>
     {
-        private readonly IBindable<int?> roomIdBind = new Bindable<int?>();
+        [Resolved(typeof(Room), nameof(Room.RoomID))]
+        private Bindable<int?> roomId { get; set; }
 
-        public MatchTabControl(Room room)
+        public MatchTabControl()
         {
-            roomIdBind.BindTo(room.RoomID);
-
             AddItem(new RoomMatchPage());
             AddItem(new SettingsMatchPage());
         }
@@ -27,7 +26,7 @@ namespace osu.Game.Screens.Multi.Match.Components
         [BackgroundDependencyLoader]
         private void load()
         {
-            roomIdBind.BindValueChanged(v =>
+            roomId.BindValueChanged(v =>
             {
                 if (v.HasValue)
                 {

osu.Game/Screens/Multi/Match/Components/Participants.cs

@@ -1,9 +1,8 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-using System.Collections.Generic;
 using System.Linq;
-using osu.Framework.Configuration;
+using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Game.Overlays.SearchableList;
@@ -13,16 +12,12 @@ using osuTK;
 
 namespace osu.Game.Screens.Multi.Match.Components
 {
-    public class Participants : CompositeDrawable
+    public class Participants : MultiplayerComposite
     {
-        public readonly IBindable<IEnumerable<User>> Users = new Bindable<IEnumerable<User>>();
+        [BackgroundDependencyLoader]
-        public readonly IBindable<int> ParticipantCount = new Bindable<int>();
+        private void load()
-        public readonly IBindable<int?> MaxParticipants = new Bindable<int?>();
-
-        public Participants()
         {
             FillFlowContainer<UserPanel> usersFlow;
-            ParticipantCountDisplay count;
 
             InternalChild = new Container
             {
@@ -36,7 +31,7 @@ namespace osu.Game.Screens.Multi.Match.Components
                         Padding = new MarginPadding { Top = 10 },
                         Children = new Drawable[]
                         {
-                            count = new ParticipantCountDisplay
+                            new ParticipantCountDisplay
                             {
                                 Anchor = Anchor.TopRight,
                                 Origin = Anchor.TopRight,
@@ -55,11 +50,7 @@ namespace osu.Game.Screens.Multi.Match.Components
                 },
             };
 
-            count.Participants.BindTo(Users);
+            Participants.BindValueChanged(v =>
-            count.ParticipantCount.BindTo(ParticipantCount);
-            count.MaxParticipants.BindTo(MaxParticipants);
-
-            Users.BindValueChanged(v =>
             {
                 usersFlow.Children = v.Select(u => new UserPanel(u)
                 {
@@ -68,7 +59,7 @@ namespace osu.Game.Screens.Multi.Match.Components
                     Width = 300,
                     OnLoadComplete = d => d.FadeInFromZero(60),
                 }).ToList();
-            });
+            }, true);
         }
     }
 }

osu.Game/Screens/Multi/Match/Components/ReadyButton.cs

@@ -16,7 +16,8 @@ namespace osu.Game.Screens.Multi.Match.Components
     {
         public readonly IBindable<BeatmapInfo> Beatmap = new Bindable<BeatmapInfo>();
 
-        private readonly Room room;
+        [Resolved(typeof(Room), nameof(Room.EndDate))]
+        private Bindable<DateTimeOffset> endDate { get; set; }
 
         [Resolved]
         private IBindableBeatmap gameBeatmap { get; set; }
@@ -26,9 +27,8 @@ namespace osu.Game.Screens.Multi.Match.Components
 
         private bool hasBeatmap;
 
-        public ReadyButton(Room room)
+        public ReadyButton()
         {
-            this.room = room;
             RelativeSizeAxes = Axes.Y;
             Size = new Vector2(200, 1);
 
@@ -55,6 +55,9 @@ namespace osu.Game.Screens.Multi.Match.Components
 
         private void beatmapAdded(BeatmapSetInfo model, bool existing, bool silent)
         {
+            if (Beatmap.Value == null)
+                return;
+
             if (model.Beatmaps.Any(b => b.OnlineBeatmapID == Beatmap.Value.OnlineBeatmapID))
                 Schedule(() => hasBeatmap = true);
         }
@@ -74,7 +77,7 @@ namespace osu.Game.Screens.Multi.Match.Components
                 return;
             }
 
-            bool hasEnoughTime = DateTimeOffset.UtcNow.AddSeconds(30).AddMilliseconds(gameBeatmap.Value.Track.Length) < room.EndDate;
+            bool hasEnoughTime = DateTimeOffset.UtcNow.AddSeconds(30).AddMilliseconds(gameBeatmap.Value.Track.Length) < endDate;
 
             Enabled.Value = hasBeatmap && hasEnoughTime;
         }

osu.Game/Screens/Multi/Match/MatchSubScreen.cs

@@ -4,6 +4,7 @@
 using System;
 using System.Linq;
 using osu.Framework.Allocation;
+using osu.Framework.Configuration;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Screens;
@@ -22,28 +23,74 @@ namespace osu.Game.Screens.Multi.Match
     {
         public override bool AllowBeatmapRulesetChange => false;
 
-        public override string Title => room.RoomID.Value == null ? "New room" : room.Name.Value;
+        public override string Title { get; }
+
         public override string ShortTitle => "room";
 
-        private readonly RoomBindings bindings = new RoomBindings();
+        [Resolved(typeof(Room), nameof(Room.RoomID))]
+        private Bindable<int?> roomId { get; set; }
 
-        private readonly MatchLeaderboard leaderboard;
+        [Resolved(typeof(Room), nameof(Room.Name))]
+        private Bindable<string> name { get; set; }
+
+        [Resolved(typeof(Room), nameof(Room.Playlist))]
+        private BindableList<PlaylistItem> playlist { get; set; }
+
+        public MatchSubScreen(Room room, Action<Screen> pushGameplayScreen)
+        {
+            Title = room.RoomID.Value == null ? "New room" : room.Name;
+
+            InternalChild = new Match(pushGameplayScreen)
+            {
+                RelativeSizeAxes = Axes.Both,
+                RequestBeatmapSelection = () => this.Push(new MatchSongSelect
+                {
+                    Selected = item =>
+                    {
+                        playlist.Clear();
+                        playlist.Add(item);
+                    },
+                }),
+                RequestExit = () =>
+                {
+                    if (this.IsCurrentScreen())
+                        this.Exit();
+                }
+            };
+        }
+
+        public override bool OnExiting(IScreen next)
+        {
+            Manager?.PartRoom();
+            return base.OnExiting(next);
+        }
+
+        private class Match : MultiplayerComposite
+        {
+            public Action RequestBeatmapSelection;
+            public Action RequestExit;
 
             private readonly Action<Screen> pushGameplayScreen;
 
-        [Cached]
+            private MatchLeaderboard leaderboard;
-        private readonly Room room;
+
+            [Resolved]
+            private IBindableBeatmap gameBeatmap { get; set; }
 
             [Resolved]
             private BeatmapManager beatmapManager { get; set; }
 
-        public MatchSubScreen(Room room, Action<Screen> pushGameplayScreen)
+            [Resolved(CanBeNull = true)]
+            private OsuGame game { get; set; }
+
+            public Match(Action<Screen> pushGameplayScreen)
             {
-            this.room = room;
                 this.pushGameplayScreen = pushGameplayScreen;
+            }
 
-            bindings.Room = room;
+            [BackgroundDependencyLoader]
-
+            private void load()
+            {
                 MatchChatDisplay chat;
                 Components.Header header;
                 Info info;
@@ -57,8 +104,15 @@ namespace osu.Game.Screens.Multi.Match
                         RelativeSizeAxes = Axes.Both,
                         Content = new[]
                         {
-                        new Drawable[] { header = new Components.Header(room) { Depth = -1 } },
+                            new Drawable[]
-                        new Drawable[] { info = new Info(room) { OnStart = onStart } },
+                            {
+                                header = new Components.Header
+                                {
+                                    Depth = -1,
+                                    RequestBeatmapSelection = () => RequestBeatmapSelection?.Invoke()
+                                }
+                            },
+                            new Drawable[] { info = new Info { OnStart = onStart } },
                             new Drawable[]
                             {
                                 bottomRow = new GridContainer
@@ -76,8 +130,7 @@ namespace osu.Game.Screens.Multi.Match
                                                     Right = 10,
                                                     Vertical = 10,
                                                 },
-                                            RelativeSizeAxes = Axes.Both,
+                                                RelativeSizeAxes = Axes.Both
-                                            Room = room
                                             },
                                             new Container
                                             {
@@ -88,7 +141,7 @@ namespace osu.Game.Screens.Multi.Match
                                                     Vertical = 10,
                                                 },
                                                 RelativeSizeAxes = Axes.Both,
-                                            Child = chat = new MatchChatDisplay(room)
+                                                Child = chat = new MatchChatDisplay
                                                 {
                                                     RelativeSizeAxes = Axes.Both
                                                 }
@@ -109,16 +162,11 @@ namespace osu.Game.Screens.Multi.Match
                     {
                         RelativeSizeAxes = Axes.Both,
                         Padding = new MarginPadding { Top = Components.Header.HEIGHT },
-                    Child = settings = new MatchSettingsOverlay(room) { RelativeSizeAxes = Axes.Both },
+                        Child = settings = new MatchSettingsOverlay { RelativeSizeAxes = Axes.Both },
                     },
                 };
 
-            header.OnRequestSelectBeatmap = () => this.Push(new MatchSongSelect
+                header.Tabs.Current.BindValueChanged(t =>
-            {
-                Selected = addPlaylistItem,
-            });
-
-            header.Tabs.Current.ValueChanged += t =>
                 {
                     const float fade_duration = 500;
                     if (t is SettingsMatchPage)
@@ -133,33 +181,19 @@ namespace osu.Game.Screens.Multi.Match
                         info.FadeIn(fade_duration, Easing.OutQuint);
                         bottomRow.FadeIn(fade_duration, Easing.OutQuint);
                     }
-            };
+                }, true);
 
-            chat.Exit += () =>
+                chat.Exit += () => RequestExit?.Invoke();
-            {
-                if (this.IsCurrentScreen())
-                    this.Exit();
-            };
-        }
 
-        [BackgroundDependencyLoader]
-        private void load()
-        {
                 beatmapManager.ItemAdded += beatmapAdded;
             }
 
-        public override bool OnExiting(IScreen next)
-        {
-            Manager?.PartRoom();
-            return base.OnExiting(next);
-        }
-
             protected override void LoadComplete()
             {
                 base.LoadComplete();
 
-            bindings.CurrentBeatmap.BindValueChanged(setBeatmap, true);
+                CurrentBeatmap.BindValueChanged(setBeatmap, true);
-            bindings.CurrentRuleset.BindValueChanged(setRuleset, true);
+                CurrentRuleset.BindValueChanged(setRuleset, true);
             }
 
             private void setBeatmap(BeatmapInfo beatmap)
@@ -167,7 +201,7 @@ namespace osu.Game.Screens.Multi.Match
                 // Retrieve the corresponding local beatmap, since we can't directly use the playlist's beatmap info
                 var localBeatmap = beatmap == null ? null : beatmapManager.QueryBeatmap(b => b.OnlineBeatmapID == beatmap.OnlineBeatmapID);
 
-            Game?.ForcefullySetBeatmap(beatmapManager.GetWorkingBeatmap(localBeatmap));
+                game?.ForcefullySetBeatmap(beatmapManager.GetWorkingBeatmap(localBeatmap));
             }
 
             private void setRuleset(RulesetInfo ruleset)
@@ -175,39 +209,33 @@ namespace osu.Game.Screens.Multi.Match
                 if (ruleset == null)
                     return;
 
-            Game?.ForcefullySetRuleset(ruleset);
+                game?.ForcefullySetRuleset(ruleset);
             }
 
             private void beatmapAdded(BeatmapSetInfo model, bool existing, bool silent) => Schedule(() =>
             {
-            if (Beatmap.Value != beatmapManager.DefaultBeatmap)
+                if (gameBeatmap.Value != beatmapManager.DefaultBeatmap)
                     return;
 
-            if (bindings.CurrentBeatmap.Value == null)
+                if (CurrentBeatmap.Value == null)
                     return;
 
                 // Try to retrieve the corresponding local beatmap
-            var localBeatmap = beatmapManager.QueryBeatmap(b => b.OnlineBeatmapID == bindings.CurrentBeatmap.Value.OnlineBeatmapID);
+                var localBeatmap = beatmapManager.QueryBeatmap(b => b.OnlineBeatmapID == CurrentBeatmap.Value.OnlineBeatmapID);
 
                 if (localBeatmap != null)
-                Game?.ForcefullySetBeatmap(beatmapManager.GetWorkingBeatmap(localBeatmap));
+                    game?.ForcefullySetBeatmap(beatmapManager.GetWorkingBeatmap(localBeatmap));
             });
 
-        private void addPlaylistItem(PlaylistItem item)
-        {
-            bindings.Playlist.Clear();
-            bindings.Playlist.Add(item);
-        }
-
             private void onStart()
             {
-            Beatmap.Value.Mods.Value = bindings.CurrentMods.Value.ToArray();
+                gameBeatmap.Value.Mods.Value = CurrentMods.Value.ToArray();
 
-            switch (bindings.Type.Value)
+                switch (Type.Value)
                 {
                     default:
                     case GameTypeTimeshift _:
-                    pushGameplayScreen?.Invoke(new PlayerLoader(() => new TimeshiftPlayer(room, room.Playlist.First().ID)
+                        pushGameplayScreen?.Invoke(new PlayerLoader(() => new TimeshiftPlayer(Playlist.First())
                         {
                             Exited = () => leaderboard.RefreshScores()
                         }));
@@ -224,3 +252,4 @@ namespace osu.Game.Screens.Multi.Match
             }
         }
     }
+}

osu.Game/Screens/Multi/Multiplayer.cs

@@ -20,6 +20,7 @@ using osu.Game.Overlays;
 using osu.Game.Overlays.BeatmapSet.Buttons;
 using osu.Game.Screens.Menu;
 using osu.Game.Screens.Multi.Lounge;
+using osu.Game.Screens.Multi.Lounge.Components;
 using osu.Game.Screens.Multi.Match;
 using osuTK;
 
@@ -48,6 +49,14 @@ namespace osu.Game.Screens.Multi
         private readonly LoungeSubScreen loungeSubScreen;
         private readonly ScreenStack screenStack;
 
+        private readonly IBindable<bool> isIdle = new BindableBool();
+
+        [Cached]
+        private readonly Bindable<Room> currentRoom = new Bindable<Room>();
+
+        [Cached]
+        private readonly Bindable<FilterCriteria> currentFilter = new Bindable<FilterCriteria>();
+
         [Cached(Type = typeof(IRoomManager))]
         private RoomManager roomManager;
 
@@ -74,7 +83,7 @@ namespace osu.Game.Screens.Multi
                 RelativeSizeAxes = Axes.Both,
             };
 
-            screenStack = new ScreenStack(loungeSubScreen = new LoungeSubScreen(this.Push)) { RelativeSizeAxes = Axes.Both };
+            screenStack = new ScreenStack(loungeSubScreen = new LoungeSubScreen(pushGameplayScreen)) { RelativeSizeAxes = Axes.Both };
             Padding = new MarginPadding { Horizontal = -OsuScreen.HORIZONTAL_OVERFLOW_PADDING };
 
             waves.AddRange(new Drawable[]
@@ -118,7 +127,7 @@ namespace osu.Game.Screens.Multi
                         Right = 10 + OsuScreen.HORIZONTAL_OVERFLOW_PADDING,
                     },
                     Text = "Create room",
-                    Action = () => loungeSubScreen.Push(new Room
+                    Action = () => loungeSubScreen.Open(new Room
                     {
                         Name = { Value = $"{api.LocalUser}'s awesome room" }
                     }),
@@ -130,8 +139,6 @@ namespace osu.Game.Screens.Multi
             screenStack.ScreenExited += screenExited;
         }
 
-        private readonly IBindable<bool> isIdle = new BindableBool();
-
         [BackgroundDependencyLoader(true)]
         private void load(IdleTracker idleTracker)
         {
@@ -147,12 +154,29 @@ namespace osu.Game.Screens.Multi
             isIdle.BindValueChanged(updatePollingRate, true);
         }
 
+        private CachedModelDependencyContainer<Room> dependencies;
+
+        protected override IReadOnlyDependencyContainer CreateChildDependencies(IReadOnlyDependencyContainer parent)
+        {
+            dependencies = new CachedModelDependencyContainer<Room>(base.CreateChildDependencies(parent));
+            dependencies.Model.BindTo(currentRoom);
+            return dependencies;
+        }
+
         private void updatePollingRate(bool idle)
         {
             roomManager.TimeBetweenPolls = !this.IsCurrentScreen() || !(screenStack.CurrentScreen is LoungeSubScreen) ? 0 : (idle ? 120000 : 15000);
             Logger.Log($"Polling adjusted to {roomManager.TimeBetweenPolls}");
         }
 
+        private void pushGameplayScreen(IScreen gameplayScreen)
+        {
+            if (!this.IsCurrentScreen())
+                return;
+
+            this.Push(gameplayScreen);
+        }
+
         public void APIStateChanged(APIAccess api, APIState state)
         {
             if (state != APIState.Online)
@@ -218,7 +242,7 @@ namespace osu.Game.Screens.Multi
 
         private void cancelLooping()
         {
-            var track = beatmap.Value.Track;
+            var track = beatmap?.Value?.Track;
             if (track != null)
                 track.Looping = false;
         }

osu.Game/Screens/Multi/MultiplayerComposite.cs

@@ -0,0 +1,86 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using osu.Framework.Allocation;
+using osu.Framework.Configuration;
+using osu.Framework.Graphics.Containers;
+using osu.Game.Beatmaps;
+using osu.Game.Online.Multiplayer;
+using osu.Game.Rulesets;
+using osu.Game.Rulesets.Mods;
+using osu.Game.Users;
+
+namespace osu.Game.Screens.Multi
+{
+    public class MultiplayerComposite : CompositeDrawable
+    {
+        [Resolved(typeof(Room))]
+        protected Bindable<int?> RoomID { get; private set; }
+
+        [Resolved(typeof(Room))]
+        protected Bindable<string> Name { get; private set; }
+
+        [Resolved(typeof(Room))]
+        protected Bindable<User> Host { get; private set; }
+
+        [Resolved(typeof(Room))]
+        protected Bindable<RoomStatus> Status { get; private set; }
+
+        [Resolved(typeof(Room))]
+        protected Bindable<GameType> Type { get; private set; }
+
+        [Resolved(typeof(Room))]
+        protected BindableList<PlaylistItem> Playlist { get; private set; }
+
+        [Resolved(typeof(Room))]
+        protected Bindable<IEnumerable<User>> Participants { get; private set; }
+
+        [Resolved(typeof(Room))]
+        protected Bindable<int> ParticipantCount { get; private set; }
+
+        [Resolved(typeof(Room))]
+        protected Bindable<int?> MaxParticipants { get; private set; }
+
+        [Resolved(typeof(Room))]
+        protected Bindable<DateTimeOffset> EndDate { get; private set; }
+
+        [Resolved(typeof(Room))]
+        protected Bindable<RoomAvailability> Availability { get; private set; }
+
+        [Resolved(typeof(Room))]
+        protected Bindable<TimeSpan> Duration { get; private set; }
+
+        private readonly Bindable<BeatmapInfo> currentBeatmap = new Bindable<BeatmapInfo>();
+        protected IBindable<BeatmapInfo> CurrentBeatmap => currentBeatmap;
+
+        private readonly Bindable<IEnumerable<Mod>> currentMods = new Bindable<IEnumerable<Mod>>();
+        protected IBindable<IEnumerable<Mod>> CurrentMods => currentMods;
+
+        private readonly Bindable<RulesetInfo> currentRuleset = new Bindable<RulesetInfo>();
+        protected IBindable<RulesetInfo> CurrentRuleset => currentRuleset;
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            Playlist.ItemsAdded += _ => updatePlaylist();
+            Playlist.ItemsRemoved += _ => updatePlaylist();
+
+            updatePlaylist();
+        }
+
+        private void updatePlaylist()
+        {
+            // Todo: We only ever have one playlist item for now. In the future, this will be user-settable
+
+            var playlistItem = Playlist.FirstOrDefault();
+
+            currentBeatmap.Value = playlistItem?.Beatmap;
+            currentMods.Value = playlistItem?.RequiredMods ?? Enumerable.Empty<Mod>();
+            currentRuleset.Value = playlistItem?.Ruleset;
+        }
+    }
+}

osu.Game/Screens/Multi/Play/TimeshiftPlayer.cs

@@ -5,6 +5,7 @@ using System;
 using System.Diagnostics;
 using System.Threading;
 using osu.Framework.Allocation;
+using osu.Framework.Configuration;
 using osu.Framework.Logging;
 using osu.Framework.Screens;
 using osu.Game.Online.API;
@@ -21,16 +22,17 @@ namespace osu.Game.Screens.Multi.Play
     {
         public Action Exited;
 
-        private readonly Room room;
+        [Resolved(typeof(Room), nameof(Room.RoomID))]
-        private readonly int playlistItemId;
+        private Bindable<int?> roomId { get; set; }
+
+        private readonly PlaylistItem playlistItem;
 
         [Resolved]
         private APIAccess api { get; set; }
 
-        public TimeshiftPlayer(Room room, int playlistItemId)
+        public TimeshiftPlayer(PlaylistItem playlistItem)
         {
-            this.room = room;
+            this.playlistItem = playlistItem;
-            this.playlistItemId = playlistItemId;
         }
 
         private int? token;
@@ -42,7 +44,7 @@ namespace osu.Game.Screens.Multi.Play
 
             bool failed = false;
 
-            var req = new CreateRoomScoreRequest(room.RoomID.Value ?? 0, playlistItemId);
+            var req = new CreateRoomScoreRequest(roomId.Value ?? 0, playlistItem.ID);
             req.Success += r => token = r.ID;
             req.Failure += e =>
             {
@@ -87,7 +89,7 @@ namespace osu.Game.Screens.Multi.Play
 
             Debug.Assert(token != null);
 
-            var request = new SubmitRoomScoreRequest(token.Value, room.RoomID.Value ?? 0, playlistItemId, score);
+            var request = new SubmitRoomScoreRequest(token.Value, roomId.Value ?? 0, playlistItem.ID, score);
             request.Failure += e => Logger.Error(e, "Failed to submit score");
             api.Queue(request);
         }
@@ -99,6 +101,6 @@ namespace osu.Game.Screens.Multi.Play
             Exited = null;
         }
 
-        protected override Results CreateResults(ScoreInfo score) => new MatchResults(score, room);
+        protected override Results CreateResults(ScoreInfo score) => new MatchResults(score);
     }
 }

osu.Game/Screens/Multi/Ranking/MatchResults.cs

@@ -2,7 +2,6 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System.Collections.Generic;
-using osu.Game.Online.Multiplayer;
 using osu.Game.Scoring;
 using osu.Game.Screens.Multi.Ranking.Types;
 using osu.Game.Screens.Ranking;
@@ -12,19 +11,16 @@ namespace osu.Game.Screens.Multi.Ranking
 {
     public class MatchResults : Results
     {
-        private readonly Room room;
+        public MatchResults(ScoreInfo score)
-
-        public MatchResults(ScoreInfo score, Room room)
             : base(score)
         {
-            this.room = room;
         }
 
         protected override IEnumerable<IResultPageInfo> CreateResultPages() => new IResultPageInfo[]
         {
             new ScoreOverviewPageInfo(Score, Beatmap),
             new LocalLeaderboardPageInfo(Score, Beatmap),
-            new RoomLeaderboardPageInfo(Score, Beatmap, room),
+            new RoomLeaderboardPageInfo(Score, Beatmap),
         };
     }
 }

osu.Game/Screens/Multi/Ranking/Pages/RoomLeaderboardPage.cs

@@ -5,6 +5,7 @@ using System;
 using System.Collections.Generic;
 using Microsoft.EntityFrameworkCore.Internal;
 using osu.Framework.Allocation;
+using osu.Framework.Configuration;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
@@ -23,16 +24,15 @@ namespace osu.Game.Screens.Multi.Ranking.Pages
 {
     public class RoomLeaderboardPage : ResultsPage
     {
-        private readonly Room room;
-
         private OsuColour colours;
-
         private TextFlowContainer rankText;
 
-        public RoomLeaderboardPage(ScoreInfo score, WorkingBeatmap beatmap, Room room)
+        [Resolved(typeof(Room), nameof(Room.Name))]
+        private Bindable<string> name { get; set; }
+
+        public RoomLeaderboardPage(ScoreInfo score, WorkingBeatmap beatmap)
             : base(score, beatmap)
         {
-            this.room = room;
         }
 
         [BackgroundDependencyLoader]
@@ -53,7 +53,7 @@ namespace osu.Game.Screens.Multi.Ranking.Pages
                 {
                     RelativeSizeAxes = Axes.Both,
                     BackgroundColour = colours.Gray6,
-                    Child = leaderboard = CreateLeaderboard(room)
+                    Child = leaderboard = CreateLeaderboard()
                 },
                 rankText = new TextFlowContainer
                 {
@@ -84,7 +84,7 @@ namespace osu.Game.Screens.Multi.Ranking.Pages
                 s.Colour = colours.GrayF;
             };
 
-            rankText.AddText(room.Name + "\n", white);
+            rankText.AddText(name + "\n", white);
             rankText.AddText("You are placed ", gray);
 
             int index = scores.IndexOf(new APIRoomScoreInfo { User = Score.User }, new FuncEqualityComparer<APIRoomScoreInfo>((s1, s2) => s1.User.Id.Equals(s2.User.Id)));
@@ -98,15 +98,10 @@ namespace osu.Game.Screens.Multi.Ranking.Pages
             rankText.AddText("in the room!", gray);
         }
 
-        protected virtual MatchLeaderboard CreateLeaderboard(Room room) => new ResultsMatchLeaderboard(room);
+        protected virtual MatchLeaderboard CreateLeaderboard() => new ResultsMatchLeaderboard();
 
         public class ResultsMatchLeaderboard : MatchLeaderboard
         {
-            public ResultsMatchLeaderboard(Room room)
-            {
-                Room = room;
-            }
-
             protected override bool FadeTop => true;
 
             protected override LeaderboardScore CreateDrawableScore(APIRoomScoreInfo model, int index)

osu.Game/Screens/Multi/Ranking/Types/RoomLeaderboardPageInfo.cs

@@ -3,7 +3,6 @@
 
 using osu.Game.Beatmaps;
 using osu.Game.Graphics;
-using osu.Game.Online.Multiplayer;
 using osu.Game.Scoring;
 using osu.Game.Screens.Multi.Ranking.Pages;
 using osu.Game.Screens.Ranking;
@@ -14,19 +13,17 @@ namespace osu.Game.Screens.Multi.Ranking.Types
     {
         private readonly ScoreInfo score;
         private readonly WorkingBeatmap beatmap;
-        private readonly Room room;
 
-        public RoomLeaderboardPageInfo(ScoreInfo score, WorkingBeatmap beatmap, Room room)
+        public RoomLeaderboardPageInfo(ScoreInfo score, WorkingBeatmap beatmap)
         {
             this.score = score;
             this.beatmap = beatmap;
-            this.room = room;
         }
 
         public FontAwesome Icon => FontAwesome.fa_users;
 
         public string Name => "Room Leaderboard";
 
-        public virtual ResultsPage CreatePage() => new RoomLeaderboardPage(score, beatmap, room);
+        public virtual ResultsPage CreatePage() => new RoomLeaderboardPage(score, beatmap);
     }
 }

osu.Game/Screens/Multi/RoomBindings.cs

@@ -1,106 +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 System;
-using System.Collections.Generic;
-using System.Linq;
-using osu.Framework.Configuration;
-using osu.Game.Beatmaps;
-using osu.Game.Online.Multiplayer;
-using osu.Game.Rulesets;
-using osu.Game.Rulesets.Mods;
-using osu.Game.Users;
-
-namespace osu.Game.Screens.Multi
-{
-    /// <summary>
-    /// Helper class which binds to values from a <see cref="Room"/>.
-    /// </summary>
-    public class RoomBindings
-    {
-        public RoomBindings()
-        {
-            Playlist.ItemsAdded += _ => updatePlaylist();
-            Playlist.ItemsRemoved += _ => updatePlaylist();
-        }
-
-        private Room room;
-
-        /// <summary>
-        /// The <see cref="Room"/> to bind to.
-        /// </summary>
-        public Room Room
-        {
-            get => room;
-            set
-            {
-                if (room == value)
-                    return;
-
-                if (room != null)
-                {
-                    RoomID.UnbindFrom(room.RoomID);
-                    Name.UnbindFrom(room.Name);
-                    Host.UnbindFrom(room.Host);
-                    Status.UnbindFrom(room.Status);
-                    Type.UnbindFrom(room.Type);
-                    Playlist.UnbindFrom(room.Playlist);
-                    Participants.UnbindFrom(room.Participants);
-                    ParticipantCount.UnbindFrom(room.ParticipantCount);
-                    MaxParticipants.UnbindFrom(room.MaxParticipants);
-                    EndDate.UnbindFrom(room.EndDate);
-                    Availability.UnbindFrom(room.Availability);
-                    Duration.UnbindFrom(room.Duration);
-                }
-
-                room = value ?? new Room();
-
-                RoomID.BindTo(room.RoomID);
-                Name.BindTo(room.Name);
-                Host.BindTo(room.Host);
-                Status.BindTo(room.Status);
-                Type.BindTo(room.Type);
-                Playlist.BindTo(room.Playlist);
-                Participants.BindTo(room.Participants);
-                ParticipantCount.BindTo(room.ParticipantCount);
-                MaxParticipants.BindTo(room.MaxParticipants);
-                EndDate.BindTo(room.EndDate);
-                Availability.BindTo(room.Availability);
-                Duration.BindTo(room.Duration);
-            }
-        }
-
-        private void updatePlaylist()
-        {
-            // Todo: We only ever have one playlist item for now. In the future, this will be user-settable
-
-            var playlistItem = Playlist.FirstOrDefault();
-
-            currentBeatmap.Value = playlistItem?.Beatmap;
-            currentMods.Value = playlistItem?.RequiredMods ?? Enumerable.Empty<Mod>();
-            currentRuleset.Value = playlistItem?.Ruleset;
-        }
-
-        public readonly Bindable<int?> RoomID = new Bindable<int?>();
-        public readonly Bindable<string> Name = new Bindable<string>();
-        public readonly Bindable<User> Host = new Bindable<User>();
-        public readonly Bindable<RoomStatus> Status = new Bindable<RoomStatus>();
-        public readonly Bindable<GameType> Type = new Bindable<GameType>();
-        public readonly BindableList<PlaylistItem> Playlist = new BindableList<PlaylistItem>();
-        public readonly Bindable<IEnumerable<User>> Participants = new Bindable<IEnumerable<User>>();
-        public readonly Bindable<int> ParticipantCount = new Bindable<int>();
-        public readonly Bindable<int?> MaxParticipants = new Bindable<int?>();
-        public readonly Bindable<DateTimeOffset> EndDate = new Bindable<DateTimeOffset>();
-        public readonly Bindable<RoomAvailability> Availability = new Bindable<RoomAvailability>();
-        public readonly Bindable<TimeSpan> Duration = new Bindable<TimeSpan>();
-
-        private readonly Bindable<BeatmapInfo> currentBeatmap = new Bindable<BeatmapInfo>();
-        public IBindable<BeatmapInfo> CurrentBeatmap => currentBeatmap;
-
-        private readonly Bindable<IEnumerable<Mod>> currentMods = new Bindable<IEnumerable<Mod>>();
-        public IBindable<IEnumerable<Mod>> CurrentMods => currentMods;
-
-        private readonly Bindable<RulesetInfo> currentRuleset = new Bindable<RulesetInfo>();
-        public IBindable<RulesetInfo> CurrentRuleset => currentRuleset;
-    }
-}

osu.Game/Screens/Multi/RoomManager.cs

@@ -24,9 +24,10 @@ namespace osu.Game.Screens.Multi
         private readonly BindableList<Room> rooms = new BindableList<Room>();
         public IBindableList<Room> Rooms => rooms;
 
-        private Room currentRoom;
+        private Room joinedRoom;
 
-        private FilterCriteria currentFilter = new FilterCriteria();
+        [Resolved]
+        private Bindable<FilterCriteria> currentFilter { get; set; }
 
         [Resolved]
         private APIAccess api { get; set; }
@@ -37,6 +38,16 @@ namespace osu.Game.Screens.Multi
         [Resolved]
         private BeatmapManager beatmaps { get; set; }
 
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            currentFilter.BindValueChanged(_ =>
+            {
+                if (IsLoaded)
+                    PollImmediately();
+            });
+        }
+
         protected override void Dispose(bool isDisposing)
         {
             base.Dispose(isDisposing);
@@ -51,11 +62,12 @@ namespace osu.Game.Screens.Multi
 
             req.Success += result =>
             {
+                joinedRoom = room;
+
                 update(room, result);
                 addRoom(room);
 
                 RoomsUpdated?.Invoke();
-
                 onSuccess?.Invoke(room);
             };
 
@@ -80,7 +92,7 @@ namespace osu.Game.Screens.Multi
             currentJoinRoomRequest = new JoinRoomRequest(room, api.LocalUser.Value);
             currentJoinRoomRequest.Success += () =>
             {
-                currentRoom = room;
+                joinedRoom = room;
                 onSuccess?.Invoke(room);
             };
 
@@ -95,17 +107,11 @@ namespace osu.Game.Screens.Multi
 
         public void PartRoom()
         {
-            if (currentRoom == null)
+            if (joinedRoom == null)
                 return;
 
-            api.Queue(new PartRoomRequest(currentRoom, api.LocalUser.Value));
+            api.Queue(new PartRoomRequest(joinedRoom, api.LocalUser.Value));
-            currentRoom = null;
+            joinedRoom = null;
-        }
-
-        public void Filter(FilterCriteria criteria)
-        {
-            currentFilter = criteria;
-            PollImmediately();
         }
 
         private GetRoomsRequest pollReq;
@@ -118,7 +124,7 @@ namespace osu.Game.Screens.Multi
             var tcs = new TaskCompletionSource<bool>();
 
             pollReq?.Cancel();
-            pollReq = new GetRoomsRequest(currentFilter.PrimaryFilter);
+            pollReq = new GetRoomsRequest(currentFilter.Value.PrimaryFilter);
 
             pollReq.Success += result =>
             {
@@ -132,14 +138,13 @@ namespace osu.Game.Screens.Multi
                 for (int i = 0; i < result.Count; i++)
                 {
                     var r = result[i];
-                    r.Position = i;
+                    r.Position.Value = i;
 
                     update(r, r);
                     addRoom(r);
                 }
 
                 RoomsUpdated?.Invoke();
-
                 tcs.SetResult(true);
             };
 

osu.Game/Screens/Select/SongSelect.cs

@@ -31,6 +31,7 @@ using osu.Game.Screens.Menu;
 using osu.Game.Screens.Play;
 using osu.Game.Screens.Select.Options;
 using osu.Game.Skinning;
+using osuTK.Graphics;
 
 namespace osu.Game.Screens.Select
 {
@@ -564,7 +565,7 @@ namespace osu.Game.Screens.Select
             {
                 backgroundModeBeatmap.Beatmap = beatmap;
                 backgroundModeBeatmap.BlurTo(background_blur, 750, Easing.OutQuint);
-                backgroundModeBeatmap.FadeTo(1, 250);
+                backgroundModeBeatmap.FadeColour(Color4.White, 250);
             }
 
             beatmapInfoWedge.Beatmap = beatmap;

osu.Game/Skinning/DefaultSkin.cs

@@ -4,7 +4,6 @@
 using osu.Framework.Audio.Sample;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Textures;
-using osuTK.Graphics;
 
 namespace osu.Game.Skinning
 {
@@ -13,16 +12,7 @@ namespace osu.Game.Skinning
         public DefaultSkin()
             : base(SkinInfo.Default)
         {
-            Configuration = new SkinConfiguration
+            Configuration = new SkinConfiguration();
-            {
-                ComboColours =
-                {
-                    new Color4(17, 136, 170, 255),
-                    new Color4(102, 136, 0, 255),
-                    new Color4(204, 102, 0, 255),
-                    new Color4(121, 9, 13, 255)
-                }
-            };
         }
 
         public override Drawable GetDrawableComponent(string componentName) => null;

osu.Game/Skinning/LocalSkinOverrideContainer.cs

@@ -12,6 +12,9 @@ using osu.Game.Configuration;
 
 namespace osu.Game.Skinning
 {
+    /// <summary>
+    /// A container which overrides existing skin options with beatmap-local values.
+    /// </summary>
     public class LocalSkinOverrideContainer : Container, ISkinSource
     {
         public event Action SourceChanged;
@@ -19,6 +22,14 @@ namespace osu.Game.Skinning
         private readonly Bindable<bool> beatmapSkins = new Bindable<bool>();
         private readonly Bindable<bool> beatmapHitsounds = new Bindable<bool>();
 
+        private readonly ISkinSource source;
+        private ISkinSource fallbackSource;
+
+        public LocalSkinOverrideContainer(ISkinSource source)
+        {
+            this.source = source;
+        }
+
         public Drawable GetDrawableComponent(string componentName)
         {
             Drawable sourceDrawable;
@@ -53,14 +64,6 @@ namespace osu.Game.Skinning
             return fallbackSource == null ? default : fallbackSource.GetValue(query);
         }
 
-        private readonly ISkinSource source;
-        private ISkinSource fallbackSource;
-
-        public LocalSkinOverrideContainer(ISkinSource source)
-        {
-            this.source = source;
-        }
-
         private void onSourceChanged() => SourceChanged?.Invoke();
 
         protected override IReadOnlyDependencyContainer CreateChildDependencies(IReadOnlyDependencyContainer parent)

osu.Game/Skinning/SkinConfiguration.cs

@@ -11,7 +11,13 @@ namespace osu.Game.Skinning
     {
         public readonly SkinInfo SkinInfo = new SkinInfo();
 
-        public List<Color4> ComboColours { get; set; } = new List<Color4>();
+        public List<Color4> ComboColours { get; set; } = new List<Color4>
+        {
+            new Color4(17, 136, 170, 255),
+            new Color4(102, 136, 0, 255),
+            new Color4(204, 102, 0, 255),
+            new Color4(121, 9, 13, 255)
+        };
 
         public Dictionary<string, Color4> CustomColours { get; set; } = new Dictionary<string, Color4>();
 

osu.Game/Tests/Visual/MultiplayerTestCase.cs

@@ -0,0 +1,30 @@
+// 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.Configuration;
+using osu.Game.Online.Multiplayer;
+
+namespace osu.Game.Tests.Visual
+{
+    public class MultiplayerTestCase : OsuTestCase
+    {
+        [Cached]
+        private readonly Bindable<Room> currentRoom = new Bindable<Room>(new Room());
+
+        protected Room Room
+        {
+            get => currentRoom;
+            set => currentRoom.Value = value;
+        }
+
+        private CachedModelDependencyContainer<Room> dependencies;
+
+        protected override IReadOnlyDependencyContainer CreateChildDependencies(IReadOnlyDependencyContainer parent)
+        {
+            dependencies = new CachedModelDependencyContainer<Room>(base.CreateChildDependencies(parent));
+            dependencies.Model.BindTo(currentRoom);
+            return dependencies;
+        }
+    }
+}

osu.Game/osu.Game.csproj

@@ -16,7 +16,7 @@
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite.Core" Version="2.2.1" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
     <PackageReference Include="ppy.osu.Game.Resources" Version="2019.128.0" />
-    <PackageReference Include="ppy.osu.Framework" Version="2019.131.0" />
+    <PackageReference Include="ppy.osu.Framework" Version="2019.208.1" />
     <PackageReference Include="SharpCompress" Version="0.22.0" />
     <PackageReference Include="NUnit" Version="3.11.0" />
     <PackageReference Include="SharpRaven" Version="2.4.0" />

osu.iOS.props

@@ -105,12 +105,12 @@
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite.Core" Version="2.2.1" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
     <PackageReference Include="ppy.osu.Game.Resources" Version="2019.128.0" />
-    <PackageReference Include="ppy.osu.Framework" Version="2019.131.0" />
+    <PackageReference Include="ppy.osu.Framework" Version="2019.208.1" />
-    <PackageReference Include="ppy.osu.Framework.iOS" Version="2019.131.0" />
+    <PackageReference Include="ppy.osu.Framework.iOS" Version="2019.208.1" />
     <PackageReference Include="SharpCompress" Version="0.22.0" />
     <PackageReference Include="NUnit" Version="3.11.0" />
     <PackageReference Include="SharpRaven" Version="2.4.0" />
     <PackageReference Include="System.ComponentModel.Annotations" Version="4.5.0" />
-    <PackageReference Include="ppy.osu.Framework.NativeLibs" Version="2019.110.0" ExcludeAssets="all" />
+    <PackageReference Include="ppy.osu.Framework.NativeLibs" Version="2019.208.0" ExcludeAssets="all" />
   </ItemGroup>
 </Project>