Merge branch 'master' into chat-mention-highlight

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

@@ -7,5 +7,6 @@ namespace osu.Game.Rulesets.Catch.Scoring
 {
     public class CatchScoreProcessor : ScoreProcessor
     {
+        protected override double ClassicScoreMultiplier => 28;
     }
 }

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

@@ -10,5 +10,7 @@ namespace osu.Game.Rulesets.Mania.Scoring
         protected override double DefaultAccuracyPortion => 0.99;
 
         protected override double DefaultComboPortion => 0.01;
+
+        protected override double ClassicScoreMultiplier => 16;
     }
 }

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

@@ -11,6 +11,8 @@ namespace osu.Game.Rulesets.Osu.Scoring
 {
     public class OsuScoreProcessor : ScoreProcessor
     {
+        protected override double ClassicScoreMultiplier => 36;
+
         protected override HitEvent CreateHitEvent(JudgementResult result)
             => base.CreateHitEvent(result).With((result as OsuHitCircleJudgementResult)?.CursorPositionAtHit);
 

osu.Game.Rulesets.Osu/Skinning/Default/KiaiFlash.cs

@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System;
 using osu.Framework.Audio.Track;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Shapes;
@@ -37,7 +38,7 @@ namespace osu.Game.Rulesets.Osu.Skinning.Default
             Child
                 .FadeTo(flash_opacity, EarlyActivationMilliseconds, Easing.OutQuint)
                 .Then()
-                .FadeOut(timingPoint.BeatLength - fade_length, Easing.OutSine);
+                .FadeOut(Math.Max(fade_length, timingPoint.BeatLength - fade_length), Easing.OutSine);
         }
     }
 }

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

@@ -10,5 +10,7 @@ namespace osu.Game.Rulesets.Taiko.Scoring
         protected override double DefaultAccuracyPortion => 0.75;
 
         protected override double DefaultComboPortion => 0.25;
+
+        protected override double ClassicScoreMultiplier => 22;
     }
 }

osu.Game.Tests/Online/TestAPIModJsonSerialization.cs

@@ -24,6 +24,20 @@ namespace osu.Game.Tests.Online
     [TestFixture]
     public class TestAPIModJsonSerialization
     {
+        [Test]
+        public void TestUnknownMod()
+        {
+            var apiMod = new APIMod { Acronym = "WNG" };
+
+            var deserialized = JsonConvert.DeserializeObject<APIMod>(JsonConvert.SerializeObject(apiMod));
+
+            var converted = deserialized?.ToMod(new TestRuleset());
+
+            Assert.That(converted, Is.TypeOf(typeof(UnknownMod)));
+            Assert.That(converted?.Type, Is.EqualTo(ModType.System));
+            Assert.That(converted?.Acronym, Is.EqualTo("WNG??"));
+        }
+
         [Test]
         public void TestAcronymIsPreserved()
         {

osu.Game.Tests/Online/TestSceneOnlinePlayBeatmapAvailabilityTracker.cs

@@ -118,7 +118,7 @@ namespace osu.Game.Tests.Online
         [Test]
         public void TestBeatmapDownloadingFlow()
         {
-            AddAssert("ensure beatmap unavailable", () => !beatmaps.IsAvailableLocally(testBeatmapSet));
+            AddUntilStep("ensure beatmap unavailable", () => !beatmaps.IsAvailableLocally(testBeatmapSet));
             addAvailabilityCheckStep("state not downloaded", BeatmapAvailability.NotDownloaded);
 
             AddStep("start downloading", () => beatmapDownloader.Download(testBeatmapSet));
@@ -132,7 +132,7 @@ namespace osu.Game.Tests.Online
 
             AddStep("allow importing", () => beatmaps.AllowImport.SetResult(true));
             AddUntilStep("wait for import", () => beatmaps.CurrentImport != null);
-            AddAssert("ensure beatmap available", () => beatmaps.IsAvailableLocally(testBeatmapSet));
+            AddUntilStep("ensure beatmap available", () => beatmaps.IsAvailableLocally(testBeatmapSet));
             addAvailabilityCheckStep("state is locally available", BeatmapAvailability.LocallyAvailable);
         }
 

osu.Game.Tests/Rulesets/Scoring/ScoreProcessorTest.cs

@@ -6,11 +6,15 @@ using System.Linq;
 using NUnit.Framework;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets;
+using osu.Game.Rulesets.Difficulty;
 using osu.Game.Rulesets.Judgements;
+using osu.Game.Rulesets.Mods;
 using osu.Game.Rulesets.Objects;
 using osu.Game.Rulesets.Osu.Judgements;
 using osu.Game.Rulesets.Osu.Objects;
 using osu.Game.Rulesets.Scoring;
+using osu.Game.Rulesets.UI;
+using osu.Game.Scoring;
 using osu.Game.Tests.Beatmaps;
 
 namespace osu.Game.Tests.Rulesets.Scoring
@@ -300,7 +304,26 @@ namespace osu.Game.Tests.Rulesets.Scoring
                 HitObjects = { new TestHitObject(result) }
             });
 
-            Assert.That(scoreProcessor.GetImmediateScore(ScoringMode.Standardised, result.AffectsCombo() ? 1 : 0, statistic), Is.EqualTo(expectedScore).Within(0.5d));
+            Assert.That(scoreProcessor.ComputeFinalScore(ScoringMode.Standardised, new ScoreInfo
+            {
+                Ruleset = new TestRuleset().RulesetInfo,
+                MaxCombo = result.AffectsCombo() ? 1 : 0,
+                Statistics = statistic
+            }), Is.EqualTo(expectedScore).Within(0.5d));
+        }
+
+        private class TestRuleset : Ruleset
+        {
+            public override IEnumerable<Mod> GetModsFor(ModType type) => throw new System.NotImplementedException();
+
+            public override DrawableRuleset CreateDrawableRulesetWith(IBeatmap beatmap, IReadOnlyList<Mod> mods = null) => throw new System.NotImplementedException();
+
+            public override IBeatmapConverter CreateBeatmapConverter(IBeatmap beatmap) => throw new System.NotImplementedException();
+
+            public override DifficultyCalculator CreateDifficultyCalculator(IWorkingBeatmap beatmap) => throw new System.NotImplementedException();
+
+            public override string Description => string.Empty;
+            public override string ShortName => string.Empty;
         }
 
         private class TestJudgement : Judgement

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

@@ -25,7 +25,7 @@ namespace osu.Game.Tests.Visual.Gameplay
             AddUntilStep("wait for multiple judgements", () => ((FailPlayer)Player).ScoreProcessor.JudgedHits > 1);
             AddAssert("total number of results == 1", () =>
             {
-                var score = new ScoreInfo();
+                var score = new ScoreInfo { Ruleset = Ruleset.Value };
 
                 ((FailPlayer)Player).ScoreProcessor.PopulateScore(score);
 

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

@@ -0,0 +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 NUnit.Framework;
+using osu.Game.Rulesets;
+using osu.Game.Rulesets.Mods;
+using osu.Game.Rulesets.Osu;
+
+namespace osu.Game.Tests.Visual.Gameplay
+{
+    public class TestSceneUnknownMod : ModTestScene
+    {
+        protected override Ruleset CreatePlayerRuleset() => new OsuRuleset();
+
+        /// <summary>
+        /// This test also covers the scenario of exiting Player after an unsuccessful beatmap load.
+        /// </summary>
+        [Test]
+        public void TestUnknownModDoesntEnterGameplay()
+        {
+            CreateModTest(new ModTestData
+            {
+                Beatmap = CreateWorkingBeatmap(new OsuRuleset().RulesetInfo).Beatmap,
+                Mod = new UnknownMod("WNG"),
+                PassCondition = () => Player.IsLoaded && !Player.LoadedBeatmapSuccessfully
+            });
+        }
+    }
+}

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

@@ -46,7 +46,10 @@ namespace osu.Game.Tests.Visual.Multiplayer
                 var scoreProcessor = new OsuScoreProcessor();
                 scoreProcessor.ApplyBeatmap(playable);
 
-                LoadComponentAsync(leaderboard = new MultiSpectatorLeaderboard(scoreProcessor, clocks.Keys.Select(id => new MultiplayerRoomUser(id)).ToArray()) { Expanded = { Value = true } }, Add);
+                LoadComponentAsync(leaderboard = new MultiSpectatorLeaderboard(Ruleset.Value, scoreProcessor, clocks.Keys.Select(id => new MultiplayerRoomUser(id)).ToArray())
+                {
+                    Expanded = { Value = true }
+                }, Add);
             });
 
             AddUntilStep("wait for load", () => leaderboard.IsLoaded);

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

@@ -69,7 +69,7 @@ namespace osu.Game.Tests.Visual.Multiplayer
 
                 scoreProcessor.ApplyBeatmap(playableBeatmap);
 
-                LoadComponentAsync(leaderboard = new MultiplayerGameplayLeaderboard(scoreProcessor, multiplayerUsers.ToArray())
+                LoadComponentAsync(leaderboard = new MultiplayerGameplayLeaderboard(Ruleset.Value, scoreProcessor, multiplayerUsers.ToArray())
                 {
                     Anchor = Anchor.Centre,
                     Origin = Anchor.Centre,

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

@@ -80,7 +80,7 @@ namespace osu.Game.Tests.Visual.Multiplayer
 
                 scoreProcessor.ApplyBeatmap(playableBeatmap);
 
-                LoadComponentAsync(leaderboard = new MultiplayerGameplayLeaderboard(scoreProcessor, multiplayerUsers.ToArray())
+                LoadComponentAsync(leaderboard = new MultiplayerGameplayLeaderboard(Ruleset.Value, scoreProcessor, multiplayerUsers.ToArray())
                 {
                     Anchor = Anchor.Centre,
                     Origin = Anchor.Centre,

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

@@ -133,7 +133,7 @@ namespace osu.Game.Tests.Visual.Navigation
             AddStep("confirm deletion", () => InputManager.Key(Key.Number1));
             AddUntilStep("wait for dialog dismissed", () => Game.Dependencies.Get<DialogOverlay>().CurrentDialog == null);
 
-            AddAssert("ensure score is pending deletion", () => Game.Realm.Run(r => r.Find<ScoreInfo>(score.ID)?.DeletePending == true));
+            AddUntilStep("ensure score is pending deletion", () => Game.Realm.Run(r => r.Find<ScoreInfo>(score.ID)?.DeletePending == true));
 
             AddUntilStep("wait for score panel removal", () => scorePanel.Parent == null);
         }
@@ -178,7 +178,7 @@ namespace osu.Game.Tests.Visual.Navigation
             AddStep("confirm deletion", () => InputManager.Key(Key.Number1));
             AddUntilStep("wait for dialog dismissed", () => Game.Dependencies.Get<DialogOverlay>().CurrentDialog == null);
 
-            AddAssert("ensure score is pending deletion", () => Game.Realm.Run(r => r.Find<ScoreInfo>(score.ID)?.DeletePending == true));
+            AddUntilStep("ensure score is pending deletion", () => Game.Realm.Run(r => r.Find<ScoreInfo>(score.ID)?.DeletePending == true));
 
             AddUntilStep("wait for score panel removal", () => scorePanel.Parent == null);
         }

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

@@ -0,0 +1,90 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System.Collections.Generic;
+using System.Linq;
+using NUnit.Framework;
+using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Testing;
+using osu.Framework.Utils;
+using osu.Game.Graphics.UserInterface;
+using osu.Game.Online.Chat;
+using osu.Game.Overlays;
+using osu.Game.Overlays.Chat.Listing;
+using osuTK;
+
+namespace osu.Game.Tests.Visual.Online
+{
+    [TestFixture]
+    public class TestSceneChannelListing : OsuTestScene
+    {
+        [Cached]
+        private readonly OverlayColourProvider overlayColours = new OverlayColourProvider(OverlayColourScheme.Pink);
+
+        private SearchTextBox search;
+        private ChannelListing listing;
+
+        [SetUp]
+        public void SetUp()
+        {
+            Schedule(() =>
+            {
+                Children = new Drawable[]
+                {
+                    search = new SearchTextBox
+                    {
+                        Anchor = Anchor.TopCentre,
+                        Origin = Anchor.TopCentre,
+                        Width = 300,
+                        Margin = new MarginPadding { Top = 100 },
+                    },
+                    listing = new ChannelListing
+                    {
+                        Size = new Vector2(800, 400),
+                        Anchor = Anchor.Centre,
+                        Origin = Anchor.Centre,
+                    },
+                };
+                listing.Show();
+                search.Current.ValueChanged += term => listing.SearchTerm = term.NewValue;
+            });
+        }
+
+        [SetUpSteps]
+        public void SetUpSteps()
+        {
+            AddStep("Add Join/Leave callbacks", () =>
+            {
+                listing.OnRequestJoin += channel => channel.Joined.Value = true;
+                listing.OnRequestLeave += channel => channel.Joined.Value = false;
+            });
+        }
+
+        [Test]
+        public void TestAddRandomChannels()
+        {
+            AddStep("Add Random Channels", () =>
+            {
+                listing.UpdateAvailableChannels(createRandomChannels(20));
+            });
+        }
+
+        private Channel createRandomChannel()
+        {
+            int id = RNG.Next(0, 10000);
+            return new Channel
+            {
+                Name = $"#channel-{id}",
+                Topic = RNG.Next(4) < 3 ? $"We talk about the number {id} here" : null,
+                Type = ChannelType.Public,
+                Id = id,
+            };
+        }
+
+        private List<Channel> createRandomChannels(int num)
+            => Enumerable.Range(0, num)
+                         .Select(_ => createRandomChannel())
+                         .ToList();
+    }
+}

osu.Game/Online/API/APIMod.cs

@@ -8,6 +8,7 @@ using Humanizer;
 using MessagePack;
 using Newtonsoft.Json;
 using osu.Framework.Bindables;
+using osu.Framework.Logging;
 using osu.Game.Configuration;
 using osu.Game.Rulesets;
 using osu.Game.Rulesets.Mods;
@@ -51,7 +52,10 @@ namespace osu.Game.Online.API
             Mod resultMod = ruleset.CreateModFromAcronym(Acronym);
 
             if (resultMod == null)
-                throw new InvalidOperationException($"There is no mod in the ruleset ({ruleset.ShortName}) matching the acronym {Acronym}.");
+            {
+                Logger.Log($"There is no mod in the ruleset ({ruleset.ShortName}) matching the acronym {Acronym}.");
+                return new UnknownMod(Acronym);
+            }
 
             if (Settings.Count > 0)
             {

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

@@ -0,0 +1,79 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+#nullable enable
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Graphics.Containers;
+using osu.Game.Online.Chat;
+
+namespace osu.Game.Overlays.Chat.Listing
+{
+    public class ChannelListing : VisibilityContainer
+    {
+        public event Action<Channel>? OnRequestJoin;
+        public event Action<Channel>? OnRequestLeave;
+
+        public string SearchTerm
+        {
+            get => flow.SearchTerm;
+            set => flow.SearchTerm = value;
+        }
+
+        private SearchContainer<ChannelListingItem> flow = null!;
+
+        [Resolved]
+        private OverlayColourProvider colourProvider { get; set; } = null!;
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            Children = new Drawable[]
+            {
+                new Box
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    Colour = colourProvider.Background4,
+                },
+                new OsuScrollContainer
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    ScrollbarAnchor = Anchor.TopRight,
+                    Child = flow = new SearchContainer<ChannelListingItem>
+                    {
+                        Direction = FillDirection.Vertical,
+                        RelativeSizeAxes = Axes.X,
+                        AutoSizeAxes = Axes.Y,
+                        Padding = new MarginPadding
+                        {
+                            Vertical = 13,
+                            Horizontal = 15,
+                        },
+                    },
+                },
+            };
+        }
+
+        public void UpdateAvailableChannels(IEnumerable<Channel> newChannels)
+        {
+            flow.ChildrenEnumerable = newChannels.Where(c => c.Type == ChannelType.Public)
+                                                 .Select(c => new ChannelListingItem(c));
+
+            foreach (var item in flow.Children)
+            {
+                item.OnRequestJoin += channel => OnRequestJoin?.Invoke(channel);
+                item.OnRequestLeave += channel => OnRequestLeave?.Invoke(channel);
+            }
+        }
+
+        protected override void PopIn() => this.FadeIn();
+
+        protected override void PopOut() => this.FadeOut();
+    }
+}

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

@@ -0,0 +1,173 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+#nullable enable
+
+using System;
+using System.Collections.Generic;
+using osu.Framework.Allocation;
+using osu.Framework.Bindables;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Framework.Graphics.Sprites;
+using osu.Framework.Input.Events;
+using osu.Game.Graphics;
+using osu.Game.Graphics.Containers;
+using osu.Game.Graphics.Sprites;
+using osu.Game.Online.Chat;
+using osuTK;
+
+namespace osu.Game.Overlays.Chat.Listing
+{
+    public class ChannelListingItem : OsuClickableContainer, IFilterable
+    {
+        public event Action<Channel>? OnRequestJoin;
+        public event Action<Channel>? OnRequestLeave;
+
+        public bool FilteringActive { get; set; }
+        public IEnumerable<string> FilterTerms => new[] { channel.Name, channel.Topic ?? string.Empty };
+        public bool MatchingFilter { set => this.FadeTo(value ? 1f : 0f, 100); }
+
+        private readonly Channel channel;
+
+        private Box hoverBox = null!;
+        private SpriteIcon checkbox = null!;
+        private OsuSpriteText channelText = null!;
+        private OsuSpriteText topicText = null!;
+        private IBindable<bool> channelJoined = null!;
+
+        [Resolved]
+        private OverlayColourProvider colourProvider { get; set; } = null!;
+
+        private const float text_size = 18;
+        private const float icon_size = 14;
+
+        private const float vertical_margin = 1.5f;
+
+        public ChannelListingItem(Channel channel)
+        {
+            this.channel = channel;
+        }
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            Masking = true;
+            CornerRadius = 5;
+            RelativeSizeAxes = Axes.X;
+            Height = 20 + (vertical_margin * 2);
+
+            Children = new Drawable[]
+            {
+                hoverBox = new Box
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    Colour = colourProvider.Background3,
+                    Margin = new MarginPadding { Vertical = vertical_margin },
+                    Alpha = 0f,
+                },
+                new GridContainer
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    ColumnDimensions = new[]
+                    {
+                        new Dimension(GridSizeMode.Absolute, 40),
+                        new Dimension(GridSizeMode.Absolute, 200),
+                        new Dimension(GridSizeMode.Absolute, 400),
+                        new Dimension(GridSizeMode.AutoSize),
+                        new Dimension(),
+                    },
+                    Content = new[]
+                    {
+                        new Drawable[]
+                        {
+                            checkbox = new SpriteIcon
+                            {
+                                Alpha = 0,
+                                Anchor = Anchor.Centre,
+                                Origin = Anchor.Centre,
+                                Icon = FontAwesome.Solid.Check,
+                                Size = new Vector2(icon_size),
+                            },
+                            channelText = new OsuSpriteText
+                            {
+                                Anchor = Anchor.CentreLeft,
+                                Origin = Anchor.CentreLeft,
+                                Text = channel.Name,
+                                Font = OsuFont.Torus.With(size: text_size, weight: FontWeight.SemiBold),
+                                Margin = new MarginPadding { Bottom = 2 },
+                            },
+                            topicText = new OsuSpriteText
+                            {
+                                Anchor = Anchor.CentreLeft,
+                                Origin = Anchor.CentreLeft,
+                                Text = channel.Topic,
+                                Font = OsuFont.Torus.With(size: text_size),
+                                Margin = new MarginPadding { Bottom = 2 },
+                            },
+                            new SpriteIcon
+                            {
+                                Anchor = Anchor.CentreLeft,
+                                Origin = Anchor.CentreLeft,
+                                Icon = FontAwesome.Solid.User,
+                                Size = new Vector2(icon_size),
+                                Margin = new MarginPadding { Right = 5 },
+                                Colour = colourProvider.Light3,
+                            },
+                            new OsuSpriteText
+                            {
+                                Anchor = Anchor.CentreLeft,
+                                Origin = Anchor.CentreLeft,
+                                Text = "0",
+                                Font = OsuFont.Torus.With(size: text_size),
+                                Margin = new MarginPadding { Bottom = 2 },
+                                Colour = colourProvider.Light3,
+                            },
+                        },
+                    },
+                },
+            };
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            channelJoined = channel.Joined.GetBoundCopy();
+            channelJoined.BindValueChanged(change =>
+            {
+                const double duration = 500;
+
+                if (change.NewValue)
+                {
+                    checkbox.FadeIn(duration, Easing.OutQuint);
+                    checkbox.ScaleTo(1f, duration, Easing.OutElastic);
+                    channelText.Colour = Colour4.White;
+                    topicText.Colour = Colour4.White;
+                }
+                else
+                {
+                    checkbox.FadeOut(duration, Easing.OutQuint);
+                    checkbox.ScaleTo(0.8f, duration, Easing.OutQuint);
+                    channelText.Colour = colourProvider.Light3;
+                    topicText.Colour = colourProvider.Content2;
+                }
+            }, true);
+
+            Action = () => (channelJoined.Value ? OnRequestLeave : OnRequestJoin)?.Invoke(channel);
+        }
+
+        protected override bool OnHover(HoverEvent e)
+        {
+            hoverBox.Show();
+            return base.OnHover(e);
+        }
+
+        protected override void OnHoverLost(HoverLostEvent e)
+        {
+            hoverBox.FadeOut(300, Easing.OutQuint);
+            base.OnHoverLost(e);
+        }
+    }
+}

osu.Game/Overlays/SettingsToolboxGroup.cs

@@ -162,7 +162,9 @@ namespace osu.Game.Overlays
 
             Expanded.BindValueChanged(v =>
             {
-                content.ClearTransforms();
+                // clearing transforms can break autosizing, see: https://github.com/ppy/osu-framework/issues/5064
+                if (v.NewValue != v.OldValue)
+                    content.ClearTransforms();
 
                 if (v.NewValue)
                     content.AutoSizeAxes = Axes.Y;

osu.Game/Rulesets/Difficulty/PerformanceBreakdownCalculator.cs

@@ -63,9 +63,8 @@ namespace osu.Game.Rulesets.Difficulty
 
                 // calculate total score
                 ScoreProcessor scoreProcessor = ruleset.CreateScoreProcessor();
-                scoreProcessor.HighestCombo.Value = perfectPlay.MaxCombo;
                 scoreProcessor.Mods.Value = perfectPlay.Mods;
-                perfectPlay.TotalScore = (long)scoreProcessor.GetImmediateScore(ScoringMode.Standardised, perfectPlay.MaxCombo, statistics);
+                perfectPlay.TotalScore = (long)scoreProcessor.ComputeFinalScore(ScoringMode.Standardised, perfectPlay);
 
                 // compute rank achieved
                 // default to SS, then adjust the rank with mods

osu.Game/Rulesets/Mods/UnknownMod.cs

@@ -0,0 +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.
+
+namespace osu.Game.Rulesets.Mods
+{
+    public class UnknownMod : Mod
+    {
+        /// <summary>
+        /// The acronym of the mod which could not be resolved.
+        /// </summary>
+        public readonly string OriginalAcronym;
+
+        public override string Name => $"Unknown mod ({OriginalAcronym})";
+        public override string Acronym => $"{OriginalAcronym}??";
+        public override string Description => "This mod could not be resolved by the game.";
+        public override double ScoreMultiplier => 0;
+
+        public override bool UserPlayable => false;
+
+        public override ModType Type => ModType.System;
+
+        public UnknownMod(string acronym)
+        {
+            OriginalAcronym = acronym;
+        }
+
+        public override Mod DeepClone() => new UnknownMod(OriginalAcronym);
+    }
+}

osu.Game/Rulesets/Scoring/ScoreProcessor.cs

@@ -7,6 +7,7 @@ using System.Diagnostics;
 using System.Linq;
 using osu.Framework.Bindables;
 using osu.Framework.Utils;
+using osu.Game.Beatmaps;
 using osu.Game.Extensions;
 using osu.Game.Rulesets.Judgements;
 using osu.Game.Rulesets.Mods;
@@ -76,6 +77,11 @@ namespace osu.Game.Rulesets.Scoring
         /// </summary>
         protected virtual double DefaultComboPortion => 0.7;
 
+        /// <summary>
+        /// An arbitrary multiplier to scale scores in the <see cref="ScoringMode.Classic"/> scoring mode.
+        /// </summary>
+        protected virtual double ClassicScoreMultiplier => 36;
+
         private readonly double accuracyPortion;
         private readonly double comboPortion;
 
@@ -86,9 +92,23 @@ namespace osu.Game.Rulesets.Scoring
         /// </summary>
         private double maxBaseScore;
 
+        /// <summary>
+        /// The maximum number of basic (non-tick and non-bonus) hitobjects.
+        /// </summary>
+        private int maxBasicHitObjects;
+
+        /// <summary>
+        /// The maximum <see cref="HitResult"/> of a basic (non-tick and non-bonus) hitobject.
+        /// Only populated via <see cref="ComputeFinalScore"/> or <see cref="ResetFromReplayFrame"/>.
+        /// </summary>
+        private HitResult? maxBasicResult;
+
         private double rollingMaxBaseScore;
         private double baseScore;
+        private int basicHitObjects;
+        private bool beatmapApplied;
 
+        private readonly Dictionary<HitResult, int> scoreResultCounts = new Dictionary<HitResult, int>();
         private readonly List<HitEvent> hitEvents = new List<HitEvent>();
         private HitObject lastHitObject;
 
@@ -122,7 +142,11 @@ namespace osu.Game.Rulesets.Scoring
             };
         }
 
-        private readonly Dictionary<HitResult, int> scoreResultCounts = new Dictionary<HitResult, int>();
+        public override void ApplyBeatmap(IBeatmap beatmap)
+        {
+            base.ApplyBeatmap(beatmap);
+            beatmapApplied = true;
+        }
 
         protected sealed override void ApplyResultInternal(JudgementResult result)
         {
@@ -160,6 +184,9 @@ namespace osu.Game.Rulesets.Scoring
                 rollingMaxBaseScore += result.Judgement.MaxNumericResult;
             }
 
+            if (result.Type.IsBasic())
+                basicHitObjects++;
+
             hitEvents.Add(CreateHitEvent(result));
             lastHitObject = result.HitObject;
 
@@ -195,6 +222,9 @@ namespace osu.Game.Rulesets.Scoring
                 rollingMaxBaseScore -= result.Judgement.MaxNumericResult;
             }
 
+            if (result.Type.IsBasic())
+                basicHitObjects--;
+
             Debug.Assert(hitEvents.Count > 0);
             lastHitObject = hitEvents[^1].LastHitObject;
             hitEvents.RemoveAt(hitEvents.Count - 1);
@@ -204,29 +234,113 @@ namespace osu.Game.Rulesets.Scoring
 
         private void updateScore()
         {
-            if (rollingMaxBaseScore != 0)
-                Accuracy.Value = calculateAccuracyRatio(baseScore, true);
+            double rollingAccuracyRatio = rollingMaxBaseScore > 0 ? baseScore / rollingMaxBaseScore : 1;
+            double accuracyRatio = maxBaseScore > 0 ? baseScore / maxBaseScore : 1;
+            double comboRatio = maxAchievableCombo > 0 ? (double)HighestCombo.Value / maxAchievableCombo : 1;
 
-            TotalScore.Value = getScore(Mode.Value);
-        }
-
-        private double getScore(ScoringMode mode)
-        {
-            return GetScore(mode,
-                calculateAccuracyRatio(baseScore),
-                calculateComboRatio(HighestCombo.Value),
-                scoreResultCounts);
+            Accuracy.Value = rollingAccuracyRatio;
+            TotalScore.Value = ComputeScore(Mode.Value, accuracyRatio, comboRatio, getBonusScore(scoreResultCounts), maxBasicHitObjects);
         }
 
         /// <summary>
-        /// Computes the total score.
+        /// Computes the total score of a given finalised <see cref="ScoreInfo"/>. This should be used when a score is known to be complete.
         /// </summary>
-        /// <param name="mode">The <see cref="ScoringMode"/> to compute the total score in.</param>
+        /// <remarks>
+        /// Does not require <see cref="JudgementProcessor.ApplyBeatmap"/> to have been called before use.
+        /// </remarks>
+        /// <param name="mode">The <see cref="ScoringMode"/> to represent the score as.</param>
+        /// <param name="scoreInfo">The <see cref="ScoreInfo"/> to compute the total score of.</param>
+        /// <returns>The total score in the given <see cref="ScoringMode"/>.</returns>
+        public double ComputeFinalScore(ScoringMode mode, ScoreInfo scoreInfo)
+        {
+            extractFromStatistics(scoreInfo.Ruleset.CreateInstance(),
+                scoreInfo.Statistics,
+                out double extractedBaseScore,
+                out double extractedMaxBaseScore,
+                out int extractedMaxCombo,
+                out int extractedBasicHitObjects);
+
+            double accuracyRatio = extractedMaxBaseScore > 0 ? extractedBaseScore / extractedMaxBaseScore : 1;
+            double comboRatio = extractedMaxCombo > 0 ? (double)scoreInfo.MaxCombo / extractedMaxCombo : 1;
+
+            return ComputeScore(mode, accuracyRatio, comboRatio, getBonusScore(scoreInfo.Statistics), extractedBasicHitObjects);
+        }
+
+        /// <summary>
+        /// Computes the total score of a partially-completed <see cref="ScoreInfo"/>. This should be used when it is unknown whether a score is complete.
+        /// </summary>
+        /// <remarks>
+        /// Requires <see cref="JudgementProcessor.ApplyBeatmap"/> to have been called before use.
+        /// </remarks>
+        /// <param name="mode">The <see cref="ScoringMode"/> to represent the score as.</param>
+        /// <param name="scoreInfo">The <see cref="ScoreInfo"/> to compute the total score of.</param>
+        /// <returns>The total score in the given <see cref="ScoringMode"/>.</returns>
+        public double ComputePartialScore(ScoringMode mode, ScoreInfo scoreInfo)
+        {
+            if (!beatmapApplied)
+                throw new InvalidOperationException($"Cannot compute partial score without calling {nameof(ApplyBeatmap)}.");
+
+            extractFromStatistics(scoreInfo.Ruleset.CreateInstance(),
+                scoreInfo.Statistics,
+                out double extractedBaseScore,
+                out _,
+                out _,
+                out _);
+
+            double accuracyRatio = maxBaseScore > 0 ? extractedBaseScore / maxBaseScore : 1;
+            double comboRatio = maxAchievableCombo > 0 ? (double)scoreInfo.MaxCombo / maxAchievableCombo : 1;
+
+            return ComputeScore(mode, accuracyRatio, comboRatio, getBonusScore(scoreInfo.Statistics), maxBasicHitObjects);
+        }
+
+        /// <summary>
+        /// Computes the total score of a given <see cref="ScoreInfo"/> with a given custom max achievable combo.
+        /// </summary>
+        /// <remarks>
+        /// This is useful for processing legacy scores in which the maximum achievable combo can be more accurately determined via external means (e.g. database values or difficulty calculation).
+        /// <p>Does not require <see cref="JudgementProcessor.ApplyBeatmap"/> to have been called before use.</p>
+        /// </remarks>
+        /// <param name="mode">The <see cref="ScoringMode"/> to represent the score as.</param>
+        /// <param name="scoreInfo">The <see cref="ScoreInfo"/> to compute the total score of.</param>
+        /// <param name="maxAchievableCombo">The maximum achievable combo for the provided beatmap.</param>
+        /// <returns>The total score in the given <see cref="ScoringMode"/>.</returns>
+        public double ComputeFinalLegacyScore(ScoringMode mode, ScoreInfo scoreInfo, int maxAchievableCombo)
+        {
+            double accuracyRatio = scoreInfo.Accuracy;
+            double comboRatio = maxAchievableCombo > 0 ? (double)scoreInfo.MaxCombo / maxAchievableCombo : 1;
+
+            // For legacy osu!mania scores, a full-GREAT score has 100% accuracy. If combined with a full-combo, the score becomes indistinguishable from a full-PERFECT score.
+            // To get around this, the accuracy ratio is always recalculated based on the hit statistics rather than trusting the score.
+            // Note: This cannot be applied universally to all legacy scores, as some rulesets (e.g. catch) group multiple judgements together.
+            if (scoreInfo.IsLegacyScore && scoreInfo.Ruleset.OnlineID == 3)
+            {
+                extractFromStatistics(
+                    scoreInfo.Ruleset.CreateInstance(),
+                    scoreInfo.Statistics,
+                    out double computedBaseScore,
+                    out double computedMaxBaseScore,
+                    out _,
+                    out _);
+
+                if (computedMaxBaseScore > 0)
+                    accuracyRatio = computedBaseScore / computedMaxBaseScore;
+            }
+
+            int computedBasicHitObjects = scoreInfo.Statistics.Where(kvp => kvp.Key.IsBasic()).Select(kvp => kvp.Value).Sum();
+
+            return ComputeScore(mode, accuracyRatio, comboRatio, getBonusScore(scoreInfo.Statistics), computedBasicHitObjects);
+        }
+
+        /// <summary>
+        /// Computes the total score from individual scoring components.
+        /// </summary>
+        /// <param name="mode">The <see cref="ScoringMode"/> to represent the score as.</param>
         /// <param name="accuracyRatio">The accuracy percentage achieved by the player.</param>
-        /// <param name="comboRatio">The proportion of the max combo achieved by the player.</param>
-        /// <param name="statistics">Any statistics to be factored in.</param>
-        /// <returns>The total score.</returns>
-        public double GetScore(ScoringMode mode, double accuracyRatio, double comboRatio, Dictionary<HitResult, int> statistics)
+        /// <param name="comboRatio">The portion of the max combo achieved by the player.</param>
+        /// <param name="bonusScore">The total bonus score.</param>
+        /// <param name="totalBasicHitObjects">The total number of basic (non-tick and non-bonus) hitobjects in the beatmap.</param>
+        /// <returns>The total score computed from the given scoring component ratios.</returns>
+        public double ComputeScore(ScoringMode mode, double accuracyRatio, double comboRatio, double bonusScore, int totalBasicHitObjects)
         {
             switch (mode)
             {
@@ -234,62 +348,22 @@ namespace osu.Game.Rulesets.Scoring
                 case ScoringMode.Standardised:
                     double accuracyScore = accuracyPortion * accuracyRatio;
                     double comboScore = comboPortion * comboRatio;
-                    return (max_score * (accuracyScore + comboScore) + getBonusScore(statistics)) * scoreMultiplier;
+                    return (max_score * (accuracyScore + comboScore) + bonusScore) * scoreMultiplier;
 
                 case ScoringMode.Classic:
-                    int totalHitObjects = statistics.Where(k => k.Key >= HitResult.Miss && k.Key <= HitResult.Perfect).Sum(k => k.Value);
-
-                    // If there are no hitobjects then the beatmap can be composed of only ticks or spinners, so ensure we don't multiply by 0 at all times.
-                    if (totalHitObjects == 0)
-                        totalHitObjects = 1;
-
                     // This gives a similar feeling to osu!stable scoring (ScoreV1) while keeping classic scoring as only a constant multiple of standardised scoring.
                     // The invariant is important to ensure that scores don't get re-ordered on leaderboards between the two scoring modes.
-                    double scaledStandardised = GetScore(ScoringMode.Standardised, accuracyRatio, comboRatio, statistics) / max_score;
-                    return Math.Pow(scaledStandardised * totalHitObjects, 2) * 36;
+                    double scaledStandardised = ComputeScore(ScoringMode.Standardised, accuracyRatio, comboRatio, bonusScore, totalBasicHitObjects) / max_score;
+                    return Math.Pow(scaledStandardised * Math.Max(1, totalBasicHitObjects), 2) * ClassicScoreMultiplier;
             }
         }
 
         /// <summary>
-        /// Given a minimal set of inputs, return the computed score for the tracked beatmap / mods combination, at the current point in time.
+        /// Calculates the total bonus score from score statistics.
         /// </summary>
-        /// <param name="mode">The <see cref="ScoringMode"/> to compute the total score in.</param>
-        /// <param name="maxCombo">The maximum combo achievable in the beatmap.</param>
-        /// <param name="statistics">Statistics to be used for calculating accuracy, bonus score, etc.</param>
-        /// <returns>The computed score for provided inputs.</returns>
-        public double GetImmediateScore(ScoringMode mode, int maxCombo, Dictionary<HitResult, int> statistics)
-        {
-            // calculate base score from statistics pairs
-            int computedBaseScore = 0;
-
-            foreach (var pair in statistics)
-            {
-                if (!pair.Key.AffectsAccuracy())
-                    continue;
-
-                computedBaseScore += Judgement.ToNumericResult(pair.Key) * pair.Value;
-            }
-
-            return GetScore(mode, calculateAccuracyRatio(computedBaseScore), calculateComboRatio(maxCombo), statistics);
-        }
-
-        /// <summary>
-        /// Get the accuracy fraction for the provided base score.
-        /// </summary>
-        /// <param name="baseScore">The score to be used for accuracy calculation.</param>
-        /// <param name="preferRolling">Whether the rolling base score should be used (ie. for the current point in time based on Apply/Reverted results).</param>
-        /// <returns>The computed accuracy.</returns>
-        private double calculateAccuracyRatio(double baseScore, bool preferRolling = false)
-        {
-            if (preferRolling && rollingMaxBaseScore != 0)
-                return baseScore / rollingMaxBaseScore;
-
-            return maxBaseScore > 0 ? baseScore / maxBaseScore : 1;
-        }
-
-        private double calculateComboRatio(int maxCombo) => maxAchievableCombo > 0 ? (double)maxCombo / maxAchievableCombo : 1;
-
-        private double getBonusScore(Dictionary<HitResult, int> statistics)
+        /// <param name="statistics">The score statistics.</param>
+        /// <returns>The total bonus score.</returns>
+        private double getBonusScore(IReadOnlyDictionary<HitResult, int> statistics)
             => statistics.GetValueOrDefault(HitResult.SmallBonus) * Judgement.SMALL_BONUS_SCORE
                + statistics.GetValueOrDefault(HitResult.LargeBonus) * Judgement.LARGE_BONUS_SCORE;
 
@@ -311,8 +385,6 @@ namespace osu.Game.Rulesets.Scoring
 
         public int GetStatistic(HitResult result) => scoreResultCounts.GetValueOrDefault(result);
 
-        public double GetStandardisedScore() => getScore(ScoringMode.Standardised);
-
         /// <summary>
         /// Resets this ScoreProcessor to a default state.
         /// </summary>
@@ -329,10 +401,12 @@ namespace osu.Game.Rulesets.Scoring
             {
                 maxAchievableCombo = HighestCombo.Value;
                 maxBaseScore = baseScore;
+                maxBasicHitObjects = basicHitObjects;
             }
 
             baseScore = 0;
             rollingMaxBaseScore = 0;
+            basicHitObjects = 0;
 
             TotalScore.Value = 0;
             Accuracy.Value = 1;
@@ -346,23 +420,19 @@ namespace osu.Game.Rulesets.Scoring
         /// </summary>
         public virtual void PopulateScore(ScoreInfo score)
         {
-            score.TotalScore = (long)Math.Round(GetStandardisedScore());
             score.Combo = Combo.Value;
             score.MaxCombo = HighestCombo.Value;
             score.Accuracy = Accuracy.Value;
             score.Rank = Rank.Value;
+            score.HitEvents = hitEvents;
 
             foreach (var result in HitResultExtensions.ALL_TYPES)
                 score.Statistics[result] = GetStatistic(result);
 
-            score.HitEvents = hitEvents;
+            // Populate total score after everything else.
+            score.TotalScore = (long)Math.Round(ComputeFinalScore(ScoringMode.Standardised, score));
         }
 
-        /// <summary>
-        /// Maximum <see cref="HitResult"/> for a normal hit (i.e. not tick/bonus) for this ruleset. Only populated via <see cref="ResetFromReplayFrame"/>.
-        /// </summary>
-        private HitResult? maxNormalResult;
-
         public override void ResetFromReplayFrame(Ruleset ruleset, ReplayFrame frame)
         {
             base.ResetFromReplayFrame(ruleset, frame);
@@ -370,11 +440,26 @@ namespace osu.Game.Rulesets.Scoring
             if (frame.Header == null)
                 return;
 
-            baseScore = 0;
-            rollingMaxBaseScore = 0;
+            extractFromStatistics(ruleset, frame.Header.Statistics, out baseScore, out rollingMaxBaseScore, out _, out _);
             HighestCombo.Value = frame.Header.MaxCombo;
 
-            foreach ((HitResult result, int count) in frame.Header.Statistics)
+            scoreResultCounts.Clear();
+            scoreResultCounts.AddRange(frame.Header.Statistics);
+
+            updateScore();
+
+            OnResetFromReplayFrame?.Invoke();
+        }
+
+        private void extractFromStatistics(Ruleset ruleset, IReadOnlyDictionary<HitResult, int> statistics, out double baseScore, out double maxBaseScore, out int maxCombo,
+                                           out int basicHitObjects)
+        {
+            baseScore = 0;
+            maxBaseScore = 0;
+            maxCombo = 0;
+            basicHitObjects = 0;
+
+            foreach ((HitResult result, int count) in statistics)
             {
                 // Bonus scores are counted separately directly from the statistics dictionary later on.
                 if (!result.IsScorable() || result.IsBonus())
@@ -397,20 +482,19 @@ namespace osu.Game.Rulesets.Scoring
                         break;
 
                     default:
-                        maxResult = maxNormalResult ??= ruleset.GetHitResults().OrderByDescending(kvp => Judgement.ToNumericResult(kvp.result)).First().result;
+                        maxResult = maxBasicResult ??= ruleset.GetHitResults().OrderByDescending(kvp => Judgement.ToNumericResult(kvp.result)).First().result;
                         break;
                 }
 
                 baseScore += count * Judgement.ToNumericResult(result);
-                rollingMaxBaseScore += count * Judgement.ToNumericResult(maxResult);
+                maxBaseScore += count * Judgement.ToNumericResult(maxResult);
+
+                if (result.AffectsCombo())
+                    maxCombo += count;
+
+                if (result.IsBasic())
+                    basicHitObjects += count;
             }
-
-            scoreResultCounts.Clear();
-            scoreResultCounts.AddRange(frame.Header.Statistics);
-
-            updateScore();
-
-            OnResetFromReplayFrame?.Invoke();
         }
 
         protected override void Dispose(bool isDisposing)

osu.Game/Scoring/ScoreManager.cs

@@ -18,7 +18,6 @@ using osu.Game.Database;
 using osu.Game.IO.Archives;
 using osu.Game.Overlays.Notifications;
 using osu.Game.Rulesets;
-using osu.Game.Rulesets.Judgements;
 using osu.Game.Rulesets.Scoring;
 
 namespace osu.Game.Scoring
@@ -136,21 +135,9 @@ namespace osu.Game.Scoring
                 return score.TotalScore;
 
             int beatmapMaxCombo;
-            double accuracy = score.Accuracy;
 
             if (score.IsLegacyScore)
             {
-                if (score.RulesetID == 3)
-                {
-                    // In osu!stable, a full-GREAT score has 100% accuracy in mania. Along with a full combo, the score becomes indistinguishable from a full-PERFECT score.
-                    // To get around this, recalculate accuracy based on the hit statistics.
-                    // Note: This cannot be applied universally to all legacy scores, as some rulesets (e.g. catch) group multiple judgements together.
-                    double maxBaseScore = score.Statistics.Select(kvp => kvp.Value).Sum() * Judgement.ToNumericResult(HitResult.Perfect);
-                    double baseScore = score.Statistics.Select(kvp => Judgement.ToNumericResult(kvp.Key) * kvp.Value).Sum();
-                    if (maxBaseScore > 0)
-                        accuracy = baseScore / maxBaseScore;
-                }
-
                 // This score is guaranteed to be an osu!stable score.
                 // The combo must be determined through either the beatmap's max combo value or the difficulty calculator, as lazer's scoring has changed and the score statistics cannot be used.
                 if (score.BeatmapInfo.MaxCombo != null)
@@ -184,7 +171,7 @@ namespace osu.Game.Scoring
             var scoreProcessor = ruleset.CreateScoreProcessor();
             scoreProcessor.Mods.Value = score.Mods;
 
-            return (long)Math.Round(scoreProcessor.GetScore(mode, accuracy, (double)score.MaxCombo / beatmapMaxCombo, score.Statistics));
+            return (long)Math.Round(scoreProcessor.ComputeFinalLegacyScore(mode, score, beatmapMaxCombo));
         }
 
         /// <summary>

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

@@ -73,6 +73,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
 
             SelectionHandler = CreateSelectionHandler();
             SelectionHandler.DeselectAll = deselectAll;
+            SelectionHandler.SelectedItems.BindTo(SelectedItems);
 
             AddRangeInternal(new[]
             {

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

@@ -29,11 +29,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
             // bring in updates from selection changes
             EditorBeatmap.HitObjectUpdated += _ => Scheduler.AddOnce(UpdateTernaryStates);
 
-            SelectedItems.BindTo(EditorBeatmap.SelectedHitObjects);
-            SelectedItems.CollectionChanged += (sender, args) =>
-            {
-                Scheduler.AddOnce(UpdateTernaryStates);
-            };
+            SelectedItems.CollectionChanged += (sender, args) => Scheduler.AddOnce(UpdateTernaryStates);
         }
 
         protected override void DeleteItems(IEnumerable<HitObject> items) => EditorBeatmap.RemoveRange(items);

osu.Game/Screens/OnlinePlay/Multiplayer/MultiplayerPlayer.cs

@@ -10,6 +10,7 @@ using osu.Framework.Bindables;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Logging;
+using osu.Framework.Screens;
 using osu.Game.Graphics.UserInterface;
 using osu.Game.Online.Multiplayer;
 using osu.Game.Online.Rooms;
@@ -76,7 +77,7 @@ namespace osu.Game.Screens.OnlinePlay.Multiplayer
             });
 
             // todo: this should be implemented via a custom HUD implementation, and correctly masked to the main content area.
-            LoadComponentAsync(leaderboard = new MultiplayerGameplayLeaderboard(ScoreProcessor, users), l =>
+            LoadComponentAsync(leaderboard = new MultiplayerGameplayLeaderboard(GameplayState.Ruleset.RulesetInfo, ScoreProcessor, users), l =>
             {
                 if (!LoadedBeatmapSuccessfully)
                     return;
@@ -171,11 +172,25 @@ namespace osu.Game.Screens.OnlinePlay.Multiplayer
 
         private void onMatchStarted() => Scheduler.Add(() =>
         {
+            if (!this.IsCurrentScreen())
+                return;
+
             loadingDisplay.Hide();
             base.StartGameplay();
         });
 
-        private void onResultsReady() => resultsReady.SetResult(true);
+        private void onResultsReady()
+        {
+            // Schedule is required to ensure that `TaskCompletionSource.SetResult` is not called more than once.
+            // A scenario where this can occur is if this instance is not immediately disposed (ie. async disposal queue).
+            Schedule(() =>
+            {
+                if (!this.IsCurrentScreen())
+                    return;
+
+                resultsReady.SetResult(true);
+            });
+        }
 
         protected override async Task PrepareScoreForResultsAsync(Score score)
         {

osu.Game/Screens/OnlinePlay/Multiplayer/Spectate/MultiSpectatorLeaderboard.cs

@@ -5,6 +5,7 @@ using System;
 using JetBrains.Annotations;
 using osu.Framework.Timing;
 using osu.Game.Online.Multiplayer;
+using osu.Game.Rulesets;
 using osu.Game.Rulesets.Scoring;
 using osu.Game.Screens.Play.HUD;
 
@@ -12,8 +13,8 @@ namespace osu.Game.Screens.OnlinePlay.Multiplayer.Spectate
 {
     public class MultiSpectatorLeaderboard : MultiplayerGameplayLeaderboard
     {
-        public MultiSpectatorLeaderboard([NotNull] ScoreProcessor scoreProcessor, MultiplayerRoomUser[] users)
-            : base(scoreProcessor, users)
+        public MultiSpectatorLeaderboard(RulesetInfo ruleset, [NotNull] ScoreProcessor scoreProcessor, MultiplayerRoomUser[] users)
+            : base(ruleset, scoreProcessor, users)
         {
         }
 
@@ -33,7 +34,7 @@ namespace osu.Game.Screens.OnlinePlay.Multiplayer.Spectate
             ((SpectatingTrackedUserData)data).Clock = null;
         }
 
-        protected override TrackedUserData CreateUserData(MultiplayerRoomUser user, ScoreProcessor scoreProcessor) => new SpectatingTrackedUserData(user, scoreProcessor);
+        protected override TrackedUserData CreateUserData(MultiplayerRoomUser user, RulesetInfo ruleset, ScoreProcessor scoreProcessor) => new SpectatingTrackedUserData(user, ruleset, scoreProcessor);
 
         protected override void Update()
         {
@@ -48,8 +49,8 @@ namespace osu.Game.Screens.OnlinePlay.Multiplayer.Spectate
             [CanBeNull]
             public IClock Clock;
 
-            public SpectatingTrackedUserData(MultiplayerRoomUser user, ScoreProcessor scoreProcessor)
-                : base(user, scoreProcessor)
+            public SpectatingTrackedUserData(MultiplayerRoomUser user, RulesetInfo ruleset, ScoreProcessor scoreProcessor)
+                : base(user, ruleset, scoreProcessor)
             {
             }
 

osu.Game/Screens/OnlinePlay/Multiplayer/Spectate/MultiSpectatorScreen.cs

@@ -133,7 +133,7 @@ namespace osu.Game.Screens.OnlinePlay.Multiplayer.Spectate
             var scoreProcessor = Ruleset.Value.CreateInstance().CreateScoreProcessor();
             scoreProcessor.ApplyBeatmap(playableBeatmap);
 
-            LoadComponentAsync(leaderboard = new MultiSpectatorLeaderboard(scoreProcessor, users)
+            LoadComponentAsync(leaderboard = new MultiSpectatorLeaderboard(Ruleset.Value, scoreProcessor, users)
             {
                 Expanded = { Value = true },
             }, l =>

osu.Game/Screens/OnlinePlay/Playlists/PlaylistsPlayer.cs

@@ -11,6 +11,7 @@ using osu.Framework.Screens;
 using osu.Game.Extensions;
 using osu.Game.Online.Rooms;
 using osu.Game.Rulesets;
+using osu.Game.Rulesets.Scoring;
 using osu.Game.Scoring;
 using osu.Game.Screens.Play;
 using osu.Game.Screens.Ranking;
@@ -64,7 +65,7 @@ namespace osu.Game.Screens.OnlinePlay.Playlists
         {
             await base.PrepareScoreForResultsAsync(score).ConfigureAwait(false);
 
-            Score.ScoreInfo.TotalScore = (int)Math.Round(ScoreProcessor.GetStandardisedScore());
+            Score.ScoreInfo.TotalScore = (int)Math.Round(ScoreProcessor.ComputeFinalScore(ScoringMode.Standardised, Score.ScoreInfo));
         }
 
         protected override void Dispose(bool isDisposing)

osu.Game/Screens/Play/HUD/MultiplayerGameplayLeaderboard.cs

@@ -17,7 +17,9 @@ using osu.Game.Online.API.Requests.Responses;
 using osu.Game.Online.Multiplayer;
 using osu.Game.Online.Multiplayer.MatchTypes.TeamVersus;
 using osu.Game.Online.Spectator;
+using osu.Game.Rulesets;
 using osu.Game.Rulesets.Scoring;
+using osu.Game.Scoring;
 using osuTK.Graphics;
 
 namespace osu.Game.Screens.Play.HUD
@@ -41,6 +43,7 @@ namespace osu.Game.Screens.Play.HUD
         [Resolved]
         private UserLookupCache userLookupCache { get; set; }
 
+        private readonly RulesetInfo ruleset;
         private readonly ScoreProcessor scoreProcessor;
         private readonly MultiplayerRoomUser[] playingUsers;
         private Bindable<ScoringMode> scoringMode;
@@ -52,11 +55,13 @@ namespace osu.Game.Screens.Play.HUD
         /// <summary>
         /// Construct a new leaderboard.
         /// </summary>
+        /// <param name="ruleset">The ruleset.</param>
         /// <param name="scoreProcessor">A score processor instance to handle score calculation for scores of users in the match.</param>
         /// <param name="users">IDs of all users in this match.</param>
-        public MultiplayerGameplayLeaderboard(ScoreProcessor scoreProcessor, MultiplayerRoomUser[] users)
+        public MultiplayerGameplayLeaderboard(RulesetInfo ruleset, ScoreProcessor scoreProcessor, MultiplayerRoomUser[] users)
         {
             // todo: this will eventually need to be created per user to support different mod combinations.
+            this.ruleset = ruleset;
             this.scoreProcessor = scoreProcessor;
 
             playingUsers = users;
@@ -69,7 +74,7 @@ namespace osu.Game.Screens.Play.HUD
 
             foreach (var user in playingUsers)
             {
-                var trackedUser = CreateUserData(user, scoreProcessor);
+                var trackedUser = CreateUserData(user, ruleset, scoreProcessor);
                 trackedUser.ScoringMode.BindTo(scoringMode);
                 UserScores[user.UserID] = trackedUser;
 
@@ -119,7 +124,7 @@ namespace osu.Game.Screens.Play.HUD
             spectatorClient.OnNewFrames += handleIncomingFrames;
         }
 
-        protected virtual TrackedUserData CreateUserData(MultiplayerRoomUser user, ScoreProcessor scoreProcessor) => new TrackedUserData(user, scoreProcessor);
+        protected virtual TrackedUserData CreateUserData(MultiplayerRoomUser user, RulesetInfo ruleset, ScoreProcessor scoreProcessor) => new TrackedUserData(user, ruleset, scoreProcessor);
 
         protected override GameplayLeaderboardScore CreateLeaderboardScoreDrawable(APIUser user, bool isTracked)
         {
@@ -222,8 +227,12 @@ namespace osu.Game.Screens.Play.HUD
 
             public int? Team => (User.MatchState as TeamVersusUserState)?.TeamID;
 
-            public TrackedUserData(MultiplayerRoomUser user, ScoreProcessor scoreProcessor)
+            private readonly RulesetInfo ruleset;
+
+            public TrackedUserData(MultiplayerRoomUser user, RulesetInfo ruleset, ScoreProcessor scoreProcessor)
             {
+                this.ruleset = ruleset;
+
                 User = user;
                 ScoreProcessor = scoreProcessor;
 
@@ -244,7 +253,13 @@ namespace osu.Game.Screens.Play.HUD
             {
                 var header = frame.Header;
 
-                Score.Value = ScoreProcessor.GetImmediateScore(ScoringMode.Value, header.MaxCombo, header.Statistics);
+                Score.Value = ScoreProcessor.ComputePartialScore(ScoringMode.Value, new ScoreInfo
+                {
+                    Ruleset = ruleset,
+                    MaxCombo = header.MaxCombo,
+                    Statistics = header.Statistics
+                });
+
                 Accuracy.Value = header.Accuracy;
                 CurrentCombo.Value = header.Combo;
             }

osu.Game/Screens/Play/Player.cs

@@ -185,6 +185,12 @@ namespace osu.Game.Screens.Play
         {
             var gameplayMods = Mods.Value.Select(m => m.DeepClone()).ToArray();
 
+            if (gameplayMods.Any(m => m is UnknownMod))
+            {
+                Logger.Log("Gameplay was started with an unknown mod applied.", level: LogLevel.Important);
+                return;
+            }
+
             if (Beatmap.Value is DummyWorkingBeatmap)
                 return;
 
@@ -988,24 +994,27 @@ namespace osu.Game.Screens.Play
 
         public override bool OnExiting(IScreen next)
         {
-            if (!GameplayState.HasPassed && !GameplayState.HasFailed)
-                GameplayState.HasQuit = true;
-
             screenSuspension?.RemoveAndDisposeImmediately();
             failAnimationLayer?.RemoveFilters();
 
-            // if arriving here and the results screen preparation task hasn't run, it's safe to say the user has not completed the beatmap.
-            if (prepareScoreForDisplayTask == null)
+            if (LoadedBeatmapSuccessfully)
             {
-                Score.ScoreInfo.Passed = false;
-                // potentially should be ScoreRank.F instead? this is the best alternative for now.
-                Score.ScoreInfo.Rank = ScoreRank.D;
-            }
+                if (!GameplayState.HasPassed && !GameplayState.HasFailed)
+                    GameplayState.HasQuit = true;
 
-            // EndPlaying() is typically called from ReplayRecorder.Dispose(). Disposal is currently asynchronous.
-            // To resolve test failures, forcefully end playing synchronously when this screen exits.
-            // Todo: Replace this with a more permanent solution once osu-framework has a synchronous cleanup method.
-            spectatorClient.EndPlaying(GameplayState);
+                // if arriving here and the results screen preparation task hasn't run, it's safe to say the user has not completed the beatmap.
+                if (prepareScoreForDisplayTask == null)
+                {
+                    Score.ScoreInfo.Passed = false;
+                    // potentially should be ScoreRank.F instead? this is the best alternative for now.
+                    Score.ScoreInfo.Rank = ScoreRank.D;
+                }
+
+                // EndPlaying() is typically called from ReplayRecorder.Dispose(). Disposal is currently asynchronous.
+                // To resolve test failures, forcefully end playing synchronously when this screen exits.
+                // Todo: Replace this with a more permanent solution once osu-framework has a synchronous cleanup method.
+                spectatorClient.EndPlaying(GameplayState);
+            }
 
             // GameplayClockContainer performs seeks / start / stop operations on the beatmap's track.
             // as we are no longer the current screen, we cannot guarantee the track is still usable.

osu.Game/Screens/Play/PlayerSettings/BeatmapOffsetControl.cs

@@ -1,6 +1,8 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+#nullable enable
+
 using System;
 using System.Diagnostics;
 using System.Linq;
@@ -23,8 +25,6 @@ using osu.Game.Scoring;
 using osu.Game.Screens.Ranking.Statistics;
 using osuTK;
 
-#nullable enable
-
 namespace osu.Game.Screens.Play.PlayerSettings
 {
     public class BeatmapOffsetControl : CompositeDrawable
@@ -122,7 +122,19 @@ namespace osu.Game.Screens.Play.PlayerSettings
             beatmapOffsetSubscription = realm.SubscribeToPropertyChanged(
                 r => r.Find<BeatmapInfo>(beatmap.Value.BeatmapInfo.ID)?.UserSettings,
                 settings => settings.Offset,
-                val => Current.Value = val);
+                val =>
+                {
+                    // At the point we reach here, it's not guaranteed that all realm writes have taken place (there may be some in-flight).
+                    // We are only aware of writes that originated from our own flow, so if we do see one that's active we can avoid handling the feedback value arriving.
+                    if (realmWriteTask == null)
+                        Current.Value = val;
+
+                    if (realmWriteTask?.IsCompleted == true)
+                    {
+                        // we can also mark any in-flight write that is managed locally as "seen" and start handling any incoming changes again.
+                        realmWriteTask = null;
+                    }
+                });
 
             Current.BindValueChanged(currentChanged);
         }
@@ -158,10 +170,12 @@ namespace osu.Game.Screens.Play.PlayerSettings
                     if (settings == null) // only the case for tests.
                         return;
 
-                    if (settings.Offset == Current.Value)
+                    double val = Current.Value;
+
+                    if (settings.Offset == val)
                         return;
 
-                    settings.Offset = Current.Value;
+                    settings.Offset = val;
                 });
             }
         }

osu.Game/Screens/Play/SubmittingPlayer.cs

@@ -119,7 +119,8 @@ namespace osu.Game.Screens.Play
         {
             bool exiting = base.OnExiting(next);
 
-            submitScore(Score.DeepClone());
+            if (LoadedBeatmapSuccessfully)
+                submitScore(Score.DeepClone());
 
             return exiting;
         }

osu.Game/Screens/Select/BeatmapInfoWedge.cs

@@ -152,7 +152,6 @@ namespace osu.Game.Screens.Select
             public OsuSpriteText VersionLabel { get; private set; }
             public OsuSpriteText TitleLabel { get; private set; }
             public OsuSpriteText ArtistLabel { get; private set; }
-            public BeatmapSetOnlineStatusPill StatusPill { get; private set; }
             public FillFlowContainer MapperContainer { get; private set; }
 
             private Container difficultyColourBar;
@@ -169,6 +168,12 @@ namespace osu.Game.Screens.Select
             [Resolved]
             private IBindable<IReadOnlyList<Mod>> mods { get; set; }
 
+            [Resolved]
+            private BeatmapDifficultyCache difficultyCache { get; set; }
+
+            [Resolved]
+            private OsuColour colours { get; set; }
+
             private ModSettingChangeTracker settingChangeTracker;
 
             public WedgeInfoText(WorkingBeatmap working, RulesetInfo userRuleset)
@@ -181,7 +186,7 @@ namespace osu.Game.Screens.Select
             private IBindable<StarDifficulty?> starDifficulty;
 
             [BackgroundDependencyLoader]
-            private void load(OsuColour colours, LocalisationManager localisation, BeatmapDifficultyCache difficultyCache)
+            private void load(LocalisationManager localisation)
             {
                 var beatmapInfo = working.BeatmapInfo;
                 var metadata = beatmapInfo.Metadata;
@@ -255,7 +260,7 @@ namespace osu.Game.Screens.Select
                                 Shear = -wedged_container_shear,
                                 Alpha = 0f,
                             },
-                            StatusPill = new BeatmapSetOnlineStatusPill
+                            new BeatmapSetOnlineStatusPill
                             {
                                 AutoSizeAxes = Axes.Both,
                                 Anchor = Anchor.TopRight,
@@ -264,6 +269,7 @@ namespace osu.Game.Screens.Select
                                 TextSize = 11,
                                 TextPadding = new MarginPadding { Horizontal = 8, Vertical = 2 },
                                 Status = beatmapInfo.Status,
+                                Alpha = string.IsNullOrEmpty(beatmapInfo.DifficultyName) ? 0 : 1
                             }
                         }
                     },
@@ -311,22 +317,6 @@ namespace osu.Game.Screens.Select
                 titleBinding.BindValueChanged(_ => setMetadata(metadata.Source));
                 artistBinding.BindValueChanged(_ => setMetadata(metadata.Source), true);
 
-                starRatingDisplay.DisplayedStars.BindValueChanged(s =>
-                {
-                    difficultyColourBar.Colour = colours.ForStarDifficulty(s.NewValue);
-                }, true);
-
-                starDifficulty = difficultyCache.GetBindableDifficulty(beatmapInfo, (cancellationSource = new CancellationTokenSource()).Token);
-                starDifficulty.BindValueChanged(s =>
-                {
-                    starRatingDisplay.FadeIn(transition_duration);
-                    starRatingDisplay.Current.Value = s.NewValue ?? default;
-                });
-
-                // no difficulty means it can't have a status to show
-                if (string.IsNullOrEmpty(beatmapInfo.DifficultyName))
-                    StatusPill.Hide();
-
                 addInfoLabels();
             }
 
@@ -334,6 +324,23 @@ namespace osu.Game.Screens.Select
             {
                 base.LoadComplete();
 
+                starRatingDisplay.DisplayedStars.BindValueChanged(s =>
+                {
+                    difficultyColourBar.Colour = colours.ForStarDifficulty(s.NewValue);
+                }, true);
+
+                starDifficulty = difficultyCache.GetBindableDifficulty(working.BeatmapInfo, (cancellationSource = new CancellationTokenSource()).Token);
+                starDifficulty.BindValueChanged(s =>
+                {
+                    starRatingDisplay.Current.Value = s.NewValue ?? default;
+
+                    // Don't roll the counter on initial display (but still allow it to roll on applying mods etc.)
+                    if (!starRatingDisplay.IsPresent)
+                        starRatingDisplay.FinishTransforms(true);
+
+                    starRatingDisplay.FadeIn(transition_duration);
+                });
+
                 mods.BindValueChanged(m =>
                 {
                     settingChangeTracker?.Dispose();