Merge remote-tracking branch 'upstream/master' into pr/23331

.config/dotnet-tools.json

@@ -15,7 +15,7 @@
       ]
     },
     "codefilesanity": {
-      "version": "0.0.36",
+      "version": "0.0.37",
       "commands": [
         "CodeFileSanity"
       ]

.editorconfig

@@ -191,6 +191,8 @@ csharp_style_prefer_index_operator = false:silent
 csharp_style_prefer_range_operator = false:silent
 csharp_style_prefer_switch_expression = false:none
 
+csharp_style_namespace_declarations = block_scoped:warning
+
 [*.{yaml,yml}]
 insert_final_newline = true
 indent_style = space

.git-blame-ignore-revs

@@ -6,3 +6,5 @@
 212d78865a6b5f091173a347bad5686834d1d5fe
 # Add partial specs in mobile projects too
 00c11b2b4e389e48f3995d63484a6bc66a7afbdb
+# Mass NRT enabling
+0ab0c52ad577b3e7b406d09fa6056a56ff997c3e

.github/ISSUE_TEMPLATE/config.yml

@@ -2,7 +2,7 @@ blank_issues_enabled: false
 contact_links:
     - name: Help
       url: https://github.com/ppy/osu/discussions/categories/q-a
-      about: osu! not working as you'd expect? Not sure it's a bug? Check the Q&A section!
+      about: osu! not working or performing as you'd expect? Not sure it's a bug? Check the Q&A section!
     - name: Suggestions or feature request
       url: https://github.com/ppy/osu/discussions/categories/ideas
       about: Got something you think should change or be added? Search for or start a new discussion!

.github/workflows/ci.yml

@@ -121,12 +121,24 @@ jobs:
 
   build-only-ios:
     name: Build only (iOS)
-    runs-on: macos-latest
+    # `macos-13` is required, because Xcode 14.3 is required (see below).
+    # TODO: can be changed to `macos-latest` once `macos-13` becomes latest (currently in beta)
+    runs-on: macos-13
     timeout-minutes: 60
     steps:
       - name: Checkout
         uses: actions/checkout@v3
 
+      # newest Microsoft.iOS.Sdk versions require Xcode 14.3.
+      # 14.3 is currently not the default Xcode version (https://github.com/actions/runner-images/blob/main/images/macos/macos-13-Readme.md#xcode),
+      # so set it manually.
+      # TODO: remove when 14.3 becomes the default Xcode version.
+      - name: Set Xcode version
+        shell: bash
+        run: |
+          sudo xcode-select -s "/Applications/Xcode_14.3.app"
+          echo "MD_APPLE_SDK_ROOT=/Applications/Xcode_14.3.app" >> $GITHUB_ENV
+
       - name: Install .NET 6.0.x
         uses: actions/setup-dotnet@v3
         with:

.github/workflows/update-web-mod-definitions.yml

@@ -0,0 +1,53 @@
+name: Update osu-web mod definitions
+on:
+  push:
+    tags:
+      - '*'
+
+permissions:
+  contents: read # to fetch code (actions/checkout)
+
+jobs:
+  update-mod-definitions:
+    name: Update osu-web mod definitions
+    runs-on: ubuntu-latest
+    steps:
+    - name: Install .NET 6.0.x
+      uses: actions/setup-dotnet@v3
+      with:
+        dotnet-version: "6.0.x"
+
+    - name: Checkout ppy/osu
+      uses: actions/checkout@v3
+      with:
+        path: osu
+
+    - name: Checkout ppy/osu-tools
+      uses: actions/checkout@v3
+      with:
+        repository: ppy/osu-tools
+        path: osu-tools
+
+    - name: Checkout ppy/osu-web
+      uses: actions/checkout@v3
+      with:
+        repository: ppy/osu-web
+        path: osu-web
+
+    - name: Setup local game checkout for tools
+      run: ./UseLocalOsu.sh
+      working-directory: ./osu-tools
+
+    - name: Regenerate mod definitions
+      run: dotnet run --project PerformanceCalculator -- mods > ../osu-web/database/mods.json
+      working-directory: ./osu-tools
+
+    - name: Create pull request with changes
+      uses: peter-evans/create-pull-request@v5
+      with:
+        title: Update mod definitions
+        body: "This PR has been auto-generated to update the mod definitions to match ppy/osu@${{ github.ref_name }}."
+        branch: update-mod-definitions
+        commit-message: Update mod definitions
+        path: osu-web
+        token: ${{ secrets.OSU_WEB_PULL_REQUEST_PAT }}

README.md

@@ -16,21 +16,20 @@ The future of [osu!](https://osu.ppy.sh) and the beginning of an open era! Curre
 
 ## Status
 
-This project is under heavy development, but is in a stable state. Users are encouraged to try it out and keep it installed alongside the stable *osu!* client. It will continue to evolve to the point of eventually replacing the existing stable client as an update.
+This project is under constant development, but we aim to keep things in a stable state. Users are encouraged to try it out and keep it installed alongside the stable *osu!* client. It will continue to evolve to the point of eventually replacing the existing stable client as an update.
 
-**IMPORTANT:** Gameplay mechanics (and other features which you may have come to know and love) are in a constant state of flux. Game balance and final quality-of-life passes come at the end of development, preceded by experimentation and changes which may potentially **reduce playability or usability**. This is done in order to allow us to move forward as developers and designers more efficiently. If this offends you, please consider sticking to the stable releases of osu! (found on the website). We are not yet open to heated discussion over game mechanics and will not be using github as a forum for such discussions just yet.
+**IMPORTANT:** Gameplay mechanics (and other features which you may have come to know and love) are in a constant state of flux. Game balance and final quality-of-life passes come at the end of development, preceded by experimentation and changes which may potentially **reduce playability or usability**. This is done in order to allow us to move forward as developers and designers more efficiently. If this offends you, please consider sticking to a [stable release](https://osu.ppy.sh/home/download) of osu!. We are not yet open to heated discussion over game mechanics and will not be using github as a forum for such discussions just yet.
 
 We are accepting bug reports (please report with as much detail as possible and follow the existing issue templates). Feature requests are also welcome, but understand that our focus is on completing the game to feature parity before adding new features. A few resources are available as starting points to getting involved and understanding the project:
 
 - Detailed release changelogs are available on the [official osu! site](https://osu.ppy.sh/home/changelog/lazer).
 - You can learn more about our approach to [project management](https://github.com/ppy/osu/wiki/Project-management).
-- Read peppy's [blog post](https://blog.ppy.sh/a-definitive-lazer-faq/) exploring where the project is currently and the roadmap going forward.
 
 ## Running osu!
 
-If you are looking to install or test osu! without setting up a development environment, you can consume our [binary releases](https://github.com/ppy/osu/releases). Handy links below will download the latest version for your operating system of choice:
+If you are looking to install or test osu! without setting up a development environment, you can consume our [releases](https://github.com/ppy/osu/releases). You can also generally download a version for your current device from the [osu! site](https://osu.ppy.sh/home/download). Failing that, you may use the links below to download the latest version for your operating system of choice:
 
-**Latest build:**
+**Latest release:**
 
 | [Windows 8.1+ (x64)](https://github.com/ppy/osu/releases/latest/download/install.exe) | macOS 10.15+ ([Intel](https://github.com/ppy/osu/releases/latest/download/osu.app.Intel.zip), [Apple Silicon](https://github.com/ppy/osu/releases/latest/download/osu.app.Apple.Silicon.zip)) | [Linux (x64)](https://github.com/ppy/osu/releases/latest/download/osu.AppImage) | [iOS 13.4+](https://osu.ppy.sh/home/testflight) | [Android 5+](https://github.com/ppy/osu/releases/latest/download/sh.ppy.osulazer.apk) |
 | ------------- | ------------- | ------------- | ------------- | ------------- |
@@ -50,9 +49,8 @@ You can see some examples of custom rulesets by visiting the [custom ruleset dir
 Please make sure you have the following prerequisites:
 
 - A desktop platform with the [.NET 6.0 SDK](https://dotnet.microsoft.com/download) installed.
-- When developing with mobile, [Xamarin](https://docs.microsoft.com/en-us/xamarin/) is required, which is shipped together with Visual Studio or [Visual Studio for Mac](https://visualstudio.microsoft.com/vs/mac/).
+
-- When working with the codebase, we recommend using an IDE with intelligent code completion and syntax highlighting, such as the latest version of [Visual Studio](https://visualstudio.microsoft.com/vs/), [JetBrains Rider](https://www.jetbrains.com/rider/) or [Visual Studio Code](https://code.visualstudio.com/).
+When working with the codebase, we recommend using an IDE with intelligent code completion and syntax highlighting, such as the latest version of [Visual Studio](https://visualstudio.microsoft.com/vs/), [JetBrains Rider](https://www.jetbrains.com/rider/) or [Visual Studio Code](https://code.visualstudio.com/).
-- When running on Linux, please have a system-wide FFmpeg installation available to support video decoding.
 
 ### Downloading the source code
 
@@ -89,7 +87,29 @@ _Due to a historical feature gap between .NET Core and Xamarin, running `dotnet`
 
 ### Testing with resource/framework modifications
 
-Sometimes it may be necessary to cross-test changes in [osu-resources](https://github.com/ppy/osu-resources) or [osu-framework](https://github.com/ppy/osu-framework). This can be achieved by running some commands as documented on the [osu-resources](https://github.com/ppy/osu-resources/wiki/Testing-local-resources-checkout-with-other-projects) and [osu-framework](https://github.com/ppy/osu-framework/wiki/Testing-local-framework-checkout-with-other-projects) wiki pages.
+Sometimes it may be necessary to cross-test changes in [osu-resources](https://github.com/ppy/osu-resources) or [osu-framework](https://github.com/ppy/osu-framework). This can be quickly achieved using included commands:
+
+Windows:
+
+```ps
+UseLocalFramework.ps1
+UseLocalResources.ps1
+```
+
+macOS / Linux:
+
+```ps
+UseLocalFramework.sh
+UseLocalResources.sh
+```
+
+Note that these commands assume you have the relevant project(s) checked out in adjacent directories:
+
+```
+|- osu            // this repository
+|- osu-framework
+|- osu-resources
+```
 
 ### Code analysis
 

Templates/Rulesets/ruleset-example/osu.Game.Rulesets.Pippidon/Objects/Drawables/DrawablePippidonHitObject.cs

@@ -8,7 +8,6 @@ using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
 using osu.Framework.Graphics.Textures;
 using osu.Game.Audio;
-using osu.Game.Beatmaps.ControlPoints;
 using osu.Game.Rulesets.Objects.Drawables;
 using osu.Game.Rulesets.Scoring;
 using osuTK;
@@ -44,7 +43,7 @@ namespace osu.Game.Rulesets.Pippidon.Objects.Drawables
 
         public override IEnumerable<HitSampleInfo> GetSamples() => new[]
         {
-            new HitSampleInfo(HitSampleInfo.HIT_NORMAL, SampleControlPoint.DEFAULT_BANK)
+            new HitSampleInfo(HitSampleInfo.HIT_NORMAL)
         };
 
         protected override void CheckForResult(bool userTriggered, double timeOffset)

Templates/Rulesets/ruleset-scrolling-example/osu.Game.Rulesets.Pippidon/Objects/Drawables/DrawablePippidonHitObject.cs

@@ -8,7 +8,6 @@ using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
 using osu.Framework.Graphics.Textures;
 using osu.Game.Audio;
-using osu.Game.Beatmaps.ControlPoints;
 using osu.Game.Rulesets.Objects.Drawables;
 using osu.Game.Rulesets.Pippidon.UI;
 using osu.Game.Rulesets.Scoring;
@@ -44,7 +43,7 @@ namespace osu.Game.Rulesets.Pippidon.Objects.Drawables
 
         public override IEnumerable<HitSampleInfo> GetSamples() => new[]
         {
-            new HitSampleInfo(HitSampleInfo.HIT_NORMAL, SampleControlPoint.DEFAULT_BANK)
+            new HitSampleInfo(HitSampleInfo.HIT_NORMAL)
         };
 
         protected override void CheckForResult(bool userTriggered, double timeOffset)

global.json

@@ -0,0 +1,7 @@
+{
+  "sdk": {
+    "version": "6.0.100",
+    "rollForward": "latestFeature"
+  }
+}
+

osu.Android.props

@@ -11,7 +11,7 @@
     <AndroidManifestMerger>manifestmerger.jar</AndroidManifestMerger>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="ppy.osu.Framework.Android" Version="2023.418.0" />
+    <PackageReference Include="ppy.osu.Framework.Android" Version="2023.625.0" />
   </ItemGroup>
   <ItemGroup>
     <AndroidManifestOverlay Include="$(MSBuildThisFileDirectory)osu.Android\Properties\AndroidManifestOverlay.xml" />

osu.Android/GameplayScreenRotationLocker.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using Android.Content.PM;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;
@@ -13,10 +11,10 @@ namespace osu.Android
 {
     public partial class GameplayScreenRotationLocker : Component
     {
-        private Bindable<bool> localUserPlaying;
+        private Bindable<bool> localUserPlaying = null!;
 
         [Resolved]
-        private OsuGameActivity gameActivity { get; set; }
+        private OsuGameActivity gameActivity { get; set; } = null!;
 
         [BackgroundDependencyLoader]
         private void load(OsuGame game)

osu.Android/OsuGameActivity.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -15,6 +13,7 @@ using Android.Graphics;
 using Android.OS;
 using Android.Views;
 using osu.Framework.Android;
+using osu.Framework.Extensions.ObjectExtensions;
 using osu.Game.Database;
 using Debug = System.Diagnostics.Debug;
 using Uri = Android.Net.Uri;
@@ -51,11 +50,11 @@ namespace osu.Android
         /// <remarks>Adjusted on startup to match expected UX for the current device type (phone/tablet).</remarks>
         public ScreenOrientation DefaultOrientation = ScreenOrientation.Unspecified;
 
-        private OsuGameAndroid game;
+        private OsuGameAndroid game = null!;
 
         protected override Framework.Game CreateGame() => game = new OsuGameAndroid(this);
 
-        protected override void OnCreate(Bundle savedInstanceState)
+        protected override void OnCreate(Bundle? savedInstanceState)
         {
             base.OnCreate(savedInstanceState);
 
@@ -92,15 +91,15 @@ namespace osu.Android
             Assembly.Load("osu.Game.Rulesets.Mania");
         }
 
-        protected override void OnNewIntent(Intent intent) => handleIntent(intent);
+        protected override void OnNewIntent(Intent? intent) => handleIntent(intent);
 
-        private void handleIntent(Intent intent)
+        private void handleIntent(Intent? intent)
         {
-            switch (intent.Action)
+            switch (intent?.Action)
             {
                 case Intent.ActionDefault:
                     if (intent.Scheme == ContentResolver.SchemeContent)
-                        handleImportFromUris(intent.Data);
+                        handleImportFromUris(intent.Data.AsNonNull());
                     else if (osu_url_schemes.Contains(intent.Scheme))
                         game.HandleLink(intent.DataString);
                     break;
@@ -114,7 +113,7 @@ namespace osu.Android
                     {
                         var content = intent.ClipData?.GetItemAt(i);
                         if (content != null)
-                            uris.Add(content.Uri);
+                            uris.Add(content.Uri.AsNonNull());
                     }
 
                     handleImportFromUris(uris.ToArray());

osu.Android/OsuGameAndroid.cs

@@ -1,13 +1,12 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System;
 using Android.App;
 using Microsoft.Maui.Devices;
 using osu.Framework.Allocation;
 using osu.Framework.Android.Input;
+using osu.Framework.Extensions.ObjectExtensions;
 using osu.Framework.Input.Handlers;
 using osu.Framework.Platform;
 using osu.Game;
@@ -32,7 +31,7 @@ namespace osu.Android
         {
             get
             {
-                var packageInfo = Application.Context.ApplicationContext.PackageManager.GetPackageInfo(Application.Context.ApplicationContext.PackageName, 0);
+                var packageInfo = Application.Context.ApplicationContext!.PackageManager!.GetPackageInfo(Application.Context.ApplicationContext.PackageName!, 0).AsNonNull();
 
                 try
                 {
@@ -45,7 +44,7 @@ namespace osu.Android
                     // Basic conversion format (as done in Fastfile): 2020.606.0 -> 202006060
 
                     // https://stackoverflow.com/questions/52977079/android-sdk-28-versioncode-in-packageinfo-has-been-deprecated
-                    string versionName = string.Empty;
+                    string versionName;
 
                     if (OperatingSystem.IsAndroidVersionAtLeast(28))
                     {
@@ -68,7 +67,7 @@ namespace osu.Android
                 {
                 }
 
-                return new Version(packageInfo.VersionName);
+                return new Version(packageInfo.VersionName.AsNonNull());
             }
         }
 

osu.Android/Properties/AssemblyInfo.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using Android;
 using Android.App;
 

osu.Desktop/OsuGameDesktop.cs

@@ -2,12 +2,10 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System;
-using System.Collections.Generic;
 using System.Diagnostics;
 using System.IO;
 using System.Reflection;
 using System.Runtime.Versioning;
-using System.Threading.Tasks;
 using Microsoft.Win32;
 using osu.Desktop.Security;
 using osu.Framework.Platform;
@@ -17,9 +15,9 @@ using osu.Framework;
 using osu.Framework.Logging;
 using osu.Game.Updater;
 using osu.Desktop.Windows;
-using osu.Framework.Threading;
 using osu.Game.IO;
 using osu.Game.IPC;
+using osu.Game.Online.Multiplayer;
 using osu.Game.Utils;
 using SDL2;
 
@@ -111,6 +109,25 @@ namespace osu.Desktop
             }
         }
 
+        public override bool RestartAppWhenExited()
+        {
+            switch (RuntimeInfo.OS)
+            {
+                case RuntimeInfo.Platform.Windows:
+                    Debug.Assert(OperatingSystem.IsWindows());
+
+                    // Of note, this is an async method in squirrel that adds an arbitrary delay before returning
+                    // likely to ensure the external process is in a good state.
+                    //
+                    // We're not waiting on that here, but the outro playing before the actual exit should be enough
+                    // to cover this.
+                    Squirrel.UpdateManager.RestartAppWhenExited().FireAndForget();
+                    return true;
+            }
+
+            return base.RestartAppWhenExited();
+        }
+
         protected override void LoadComplete()
         {
             base.LoadComplete();
@@ -138,52 +155,10 @@ namespace osu.Desktop
 
             desktopWindow.CursorState |= CursorState.Hidden;
             desktopWindow.Title = Name;
-            desktopWindow.DragDrop += f =>
-            {
-                // on macOS, URL associations are handled via SDL_DROPFILE events.
-                if (f.StartsWith(OSU_PROTOCOL, StringComparison.Ordinal))
-                {
-                    HandleLink(f);
-                    return;
-                }
-
-                fileDrop(new[] { f });
-            };
         }
 
         protected override BatteryInfo CreateBatteryInfo() => new SDL2BatteryInfo();
 
-        private readonly List<string> importableFiles = new List<string>();
-        private ScheduledDelegate? importSchedule;
-
-        private void fileDrop(string[] filePaths)
-        {
-            lock (importableFiles)
-            {
-                importableFiles.AddRange(filePaths);
-
-                Logger.Log($"Adding {filePaths.Length} files for import");
-
-                // File drag drop operations can potentially trigger hundreds or thousands of these calls on some platforms.
-                // In order to avoid spawning multiple import tasks for a single drop operation, debounce a touch.
-                importSchedule?.Cancel();
-                importSchedule = Scheduler.AddDelayed(handlePendingImports, 100);
-            }
-        }
-
-        private void handlePendingImports()
-        {
-            lock (importableFiles)
-            {
-                Logger.Log($"Handling batch import of {importableFiles.Count} files");
-
-                string[] paths = importableFiles.ToArray();
-                importableFiles.Clear();
-
-                Task.Factory.StartNew(() => Import(paths), TaskCreationOptions.LongRunning);
-            }
-        }
-
         protected override void Dispose(bool isDisposing)
         {
             base.Dispose(isDisposing);

osu.Desktop/Updater/SquirrelUpdateManager.cs

@@ -9,6 +9,7 @@ using osu.Framework.Logging;
 using osu.Game;
 using osu.Game.Overlays;
 using osu.Game.Overlays.Notifications;
+using osu.Game.Screens.Play;
 using Squirrel;
 using Squirrel.SimpleSplat;
 using LogLevel = Squirrel.SimpleSplat.LogLevel;
@@ -36,6 +37,9 @@ namespace osu.Desktop.Updater
         [Resolved]
         private OsuGameBase game { get; set; } = null!;
 
+        [Resolved]
+        private ILocalUserPlayInfo? localUserInfo { get; set; }
+
         [BackgroundDependencyLoader]
         private void load(INotificationOverlay notifications)
         {
@@ -55,6 +59,10 @@ namespace osu.Desktop.Updater
 
             try
             {
+                // Avoid any kind of update checking while gameplay is running.
+                if (localUserInfo?.IsPlaying.Value == true)
+                    return false;
+
                 updateManager ??= new GithubUpdateManager(@"https://github.com/ppy/osu", false, github_token, @"osulazer");
 
                 var info = await updateManager.CheckForUpdate(!useDeltaPatching).ConfigureAwait(false);

osu.Game.Rulesets.Catch.Tests.Android/MainActivity.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using Android.App;
 using osu.Framework.Android;
 using osu.Game.Tests;

osu.Game.Rulesets.Catch.Tests/CatchBeatmapConversionTest.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System;
 using System.Collections.Generic;
 using Newtonsoft.Json;

osu.Game.Rulesets.Catch.Tests/CatchDifficultyCalculatorTest.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using NUnit.Framework;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Catch.Difficulty;

osu.Game.Rulesets.Catch.Tests/CatchLegacyModConversionTest.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System;
 using NUnit.Framework;
 using osu.Game.Beatmaps.Legacy;

osu.Game.Rulesets.Catch.Tests/CatchSkinColourDecodingTest.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using NUnit.Framework;
 using osu.Framework.IO.Stores;
 using osu.Game.Rulesets.Catch.Skinning;

osu.Game.Rulesets.Catch.Tests/CatchSkinnableTestScene.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using osu.Game.Tests.Visual;
 
 namespace osu.Game.Rulesets.Catch.Tests

osu.Game.Rulesets.Catch.Tests/Editor/CatchEditorTestSceneContainer.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;

osu.Game.Rulesets.Catch.Tests/Editor/CatchSelectionBlueprintTestScene.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;

osu.Game.Rulesets.Catch.Tests/Editor/TestSceneBananaShowerPlacementBlueprint.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System.Linq;
 using NUnit.Framework;
 using osu.Framework.Testing;

osu.Game.Rulesets.Catch.Tests/Editor/TestSceneCatchDistanceSnapGrid.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;

osu.Game.Rulesets.Catch.Tests/Editor/TestSceneEditor.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using NUnit.Framework;
 using osu.Game.Tests.Visual;
 

osu.Game.Rulesets.Catch.Tests/Editor/TestSceneFruitPlacementBlueprint.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System.Linq;
 using NUnit.Framework;
 using osu.Framework.Utils;

osu.Game.Rulesets.Catch.Tests/Editor/TestSceneJuiceStreamPlacementBlueprint.cs

@@ -45,7 +45,7 @@ namespace osu.Game.Rulesets.Catch.Tests.Editor
             AddAssert("end time is correct", () => Precision.AlmostEquals(lastObject.EndTime, times[1]));
             AddAssert("start position is correct", () => Precision.AlmostEquals(lastObject.OriginalX, positions[0]));
             AddAssert("end position is correct", () => Precision.AlmostEquals(lastObject.EndX, positions[1]));
-            AddAssert("default slider velocity", () => lastObject.DifficultyControlPoint.SliderVelocityBindable.IsDefault);
+            AddAssert("default slider velocity", () => lastObject.SliderVelocityBindable.IsDefault);
         }
 
         [Test]
@@ -76,7 +76,7 @@ namespace osu.Game.Rulesets.Catch.Tests.Editor
             addPlacementSteps(times, positions);
             addPathCheckStep(times, positions);
 
-            AddAssert("slider velocity changed", () => !lastObject.DifficultyControlPoint.SliderVelocityBindable.IsDefault);
+            AddAssert("slider velocity changed", () => !lastObject.SliderVelocityBindable.IsDefault);
         }
 
         [Test]

osu.Game.Rulesets.Catch.Tests/Editor/TestSceneJuiceStreamSelectionBlueprint.cs

@@ -108,11 +108,11 @@ namespace osu.Game.Rulesets.Catch.Tests.Editor
             double[] times = { 100, 300 };
             float[] positions = { 200, 300 };
             addBlueprintStep(times, positions);
-            AddAssert("default slider velocity", () => hitObject.DifficultyControlPoint.SliderVelocityBindable.IsDefault);
+            AddAssert("default slider velocity", () => hitObject.SliderVelocityBindable.IsDefault);
 
             addDragStartStep(times[1], positions[1]);
             AddMouseMoveStep(times[1], 400);
-            AddAssert("slider velocity changed", () => !hitObject.DifficultyControlPoint.SliderVelocityBindable.IsDefault);
+            AddAssert("slider velocity changed", () => !hitObject.SliderVelocityBindable.IsDefault);
         }
 
         [Test]

osu.Game.Rulesets.Catch.Tests/JuiceStreamPathTest.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System;
 using System.Collections.Generic;
 using System.Linq;

osu.Game.Rulesets.Catch.Tests/TestSceneAutoJuiceStream.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System.Collections.Generic;
 using System.Linq;
 using osu.Game.Audio;
@@ -45,7 +43,7 @@ namespace osu.Game.Rulesets.Catch.Tests
                     NewCombo = i % 8 == 0,
                     Samples = new List<HitSampleInfo>(new[]
                     {
-                        new HitSampleInfo(HitSampleInfo.HIT_NORMAL, "normal", volume: 100)
+                        new HitSampleInfo(HitSampleInfo.HIT_NORMAL)
                     })
                 });
             }

osu.Game.Rulesets.Catch.Tests/TestSceneBananaShower.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using NUnit.Framework;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Catch.Objects;

osu.Game.Rulesets.Catch.Tests/TestSceneCatchModHidden.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System.Collections.Generic;
 using System.Linq;
 using NUnit.Framework;

osu.Game.Rulesets.Catch.Tests/TestSceneCatchPlayer.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using NUnit.Framework;
 using osu.Game.Tests.Visual;
 

osu.Game.Rulesets.Catch.Tests/TestSceneCatchPlayerLegacySkin.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System.Linq;
 using NUnit.Framework;
 using osu.Framework.Extensions.IEnumerableExtensions;

osu.Game.Rulesets.Catch.Tests/TestSceneCatchReplay.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using NUnit.Framework;
 using osu.Game.Beatmaps;
 using osu.Game.Beatmaps.ControlPoints;

osu.Game.Rulesets.Catch.Tests/TestSceneCatchStacker.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using NUnit.Framework;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Catch.Objects;

osu.Game.Rulesets.Catch.Tests/TestSceneDrawableHitObjectsHidden.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using NUnit.Framework;
 using osu.Game.Rulesets.Catch.Mods;
 

osu.Game.Rulesets.Catch.Tests/TestSceneFruitObjects.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using NUnit.Framework;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;

osu.Game.Rulesets.Catch.Tests/TestSceneFruitRandomness.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using NUnit.Framework;
 using osu.Game.Rulesets.Catch.Objects;
 using osu.Game.Rulesets.Catch.Objects.Drawables;

osu.Game.Rulesets.Catch.Tests/TestSceneFruitVisualChange.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using osu.Framework.Bindables;
 using osu.Game.Rulesets.Catch.Objects;
 using osu.Game.Rulesets.Catch.Objects.Drawables;

osu.Game.Rulesets.Catch.Tests/TestSceneHyperDash.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System;
 using System.Linq;
 using NUnit.Framework;

osu.Game.Rulesets.Catch.Tests/TestSceneJuiceStream.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System.Collections.Generic;
 using NUnit.Framework;
 using osu.Game.Beatmaps;

osu.Game.Rulesets.Catch.Tests/TestSceneLegacyBeatmapSkin.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System.Linq;
 using NUnit.Framework;
 using osu.Framework.Allocation;
@@ -21,7 +19,7 @@ namespace osu.Game.Rulesets.Catch.Tests
     public partial class TestSceneLegacyBeatmapSkin : LegacyBeatmapSkinColourTest
     {
         [Resolved]
-        private AudioManager audio { get; set; }
+        private AudioManager audio { get; set; } = null!;
 
         [BackgroundDependencyLoader]
         private void load(OsuConfigManager config)

osu.Game.Rulesets.Catch/Beatmaps/CatchBeatmapConverter.cs

@@ -26,6 +26,7 @@ namespace osu.Game.Rulesets.Catch.Beatmaps
             var xPositionData = obj as IHasXPosition;
             var yPositionData = obj as IHasYPosition;
             var comboData = obj as IHasCombo;
+            var sliderVelocityData = obj as IHasSliderVelocity;
 
             switch (obj)
             {
@@ -41,7 +42,8 @@ namespace osu.Game.Rulesets.Catch.Beatmaps
                         NewCombo = comboData?.NewCombo ?? false,
                         ComboOffset = comboData?.ComboOffset ?? 0,
                         LegacyLastTickOffset = (obj as IHasLegacyLastTickOffset)?.LegacyLastTickOffset ?? 0,
-                        LegacyConvertedY = yPositionData?.Y ?? CatchHitObject.DEFAULT_LEGACY_CONVERT_Y
+                        LegacyConvertedY = yPositionData?.Y ?? CatchHitObject.DEFAULT_LEGACY_CONVERT_Y,
+                        SliderVelocity = sliderVelocityData?.SliderVelocity ?? 1
                     }.Yield();
 
                 case IHasDuration endTime:

osu.Game.Rulesets.Catch/Edit/Blueprints/BananaShowerPlacementBlueprint.cs

@@ -17,6 +17,8 @@ namespace osu.Game.Rulesets.Catch.Edit.Blueprints
         private double placementStartTime;
         private double placementEndTime;
 
+        protected override bool IsValidForPlacement => HitObject.Duration > 0;
+
         public BananaShowerPlacementBlueprint()
         {
             InternalChild = outline = new TimeSpanOutline();
@@ -49,7 +51,7 @@ namespace osu.Game.Rulesets.Catch.Edit.Blueprints
                 case PlacementState.Active:
                     if (e.Button != MouseButton.Right) break;
 
-                    EndPlacement(HitObject.Duration > 0);
+                    EndPlacement(true);
                     return true;
             }
 

osu.Game.Rulesets.Catch/Edit/Blueprints/Components/EditablePath.cs

@@ -91,7 +91,7 @@ namespace osu.Game.Rulesets.Catch.Edit.Blueprints.Components
         public void UpdateHitObjectFromPath(JuiceStream hitObject)
         {
             // The SV setting may need to be changed for the current path.
-            var svBindable = hitObject.DifficultyControlPoint.SliderVelocityBindable;
+            var svBindable = hitObject.SliderVelocityBindable;
             double svToVelocityFactor = hitObject.Velocity / svBindable.Value;
             double requiredVelocity = path.ComputeRequiredVelocity();
 

osu.Game.Rulesets.Catch/Edit/Blueprints/JuiceStreamPlacementBlueprint.cs

@@ -24,6 +24,8 @@ namespace osu.Game.Rulesets.Catch.Edit.Blueprints
 
         private InputManager inputManager = null!;
 
+        protected override bool IsValidForPlacement => HitObject.Duration > 0;
+
         public JuiceStreamPlacementBlueprint()
         {
             InternalChildren = new Drawable[]
@@ -70,7 +72,7 @@ namespace osu.Game.Rulesets.Catch.Edit.Blueprints
                             return true;
 
                         case MouseButton.Right:
-                            EndPlacement(HitObject.Duration > 0);
+                            EndPlacement(true);
                             return true;
                     }
 

osu.Game.Rulesets.Catch/Edit/CatchBeatSnapGrid.cs

@@ -0,0 +1,180 @@
+// 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.Caching;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Graphics;
+using osu.Game.Rulesets.Catch.UI;
+using osu.Game.Rulesets.Edit;
+using osu.Game.Rulesets.Objects;
+using osu.Game.Rulesets.Objects.Drawables;
+using osu.Game.Rulesets.UI.Scrolling;
+using osu.Game.Screens.Edit;
+using osuTK.Graphics;
+
+namespace osu.Game.Rulesets.Catch.Edit
+{
+    /// <summary>
+    /// A grid which displays coloured beat divisor lines in proximity to the selection or placement cursor.
+    /// </summary>
+    /// <remarks>
+    /// This class heavily borrows from osu!mania's implementation (ManiaBeatSnapGrid).
+    /// If further changes are to be made, they should also be applied there.
+    /// If the scale of the changes are large enough, abstracting may be a good path.
+    /// </remarks>
+    public partial class CatchBeatSnapGrid : Component
+    {
+        private const double visible_range = 750;
+
+        /// <summary>
+        /// The range of time values of the current selection.
+        /// </summary>
+        public (double start, double end)? SelectionTimeRange
+        {
+            set
+            {
+                if (value == selectionTimeRange)
+                    return;
+
+                selectionTimeRange = value;
+                lineCache.Invalidate();
+            }
+        }
+
+        [Resolved]
+        private EditorBeatmap beatmap { get; set; } = null!;
+
+        [Resolved]
+        private OsuColour colours { get; set; } = null!;
+
+        [Resolved]
+        private BindableBeatDivisor beatDivisor { get; set; } = null!;
+
+        private readonly Cached lineCache = new Cached();
+
+        private (double start, double end)? selectionTimeRange;
+
+        private ScrollingHitObjectContainer lineContainer = null!;
+
+        [BackgroundDependencyLoader]
+        private void load(HitObjectComposer composer)
+        {
+            lineContainer = new ScrollingHitObjectContainer();
+
+            ((CatchPlayfield)composer.Playfield).UnderlayElements.Add(lineContainer);
+
+            beatDivisor.BindValueChanged(_ => createLines(), true);
+        }
+
+        protected override void Update()
+        {
+            base.Update();
+
+            if (!lineCache.IsValid)
+            {
+                lineCache.Validate();
+                createLines();
+            }
+        }
+
+        private readonly Stack<DrawableGridLine> availableLines = new Stack<DrawableGridLine>();
+
+        private void createLines()
+        {
+            foreach (var line in lineContainer.Objects.OfType<DrawableGridLine>())
+                availableLines.Push(line);
+
+            lineContainer.Clear();
+
+            if (selectionTimeRange == null)
+                return;
+
+            var range = selectionTimeRange.Value;
+
+            var timingPoint = beatmap.ControlPointInfo.TimingPointAt(range.start - visible_range);
+
+            double time = timingPoint.Time;
+            int beat = 0;
+
+            // progress time until in the visible range.
+            while (time < range.start - visible_range)
+            {
+                time += timingPoint.BeatLength / beatDivisor.Value;
+                beat++;
+            }
+
+            while (time < range.end + visible_range)
+            {
+                var nextTimingPoint = beatmap.ControlPointInfo.TimingPointAt(time);
+
+                // switch to the next timing point if we have reached it.
+                if (nextTimingPoint.Time > timingPoint.Time)
+                {
+                    beat = 0;
+                    time = nextTimingPoint.Time;
+                    timingPoint = nextTimingPoint;
+                }
+
+                Color4 colour = BindableBeatDivisor.GetColourFor(
+                    BindableBeatDivisor.GetDivisorForBeatIndex(beat, beatDivisor.Value), colours);
+
+                if (!availableLines.TryPop(out var line))
+                    line = new DrawableGridLine();
+
+                line.HitObject.StartTime = time;
+                line.Colour = colour;
+
+                lineContainer.Add(line);
+
+                beat++;
+                time += timingPoint.BeatLength / beatDivisor.Value;
+            }
+
+            // required to update ScrollingHitObjectContainer's cache.
+            lineContainer.UpdateSubTree();
+
+            foreach (var line in lineContainer.Objects.OfType<DrawableGridLine>())
+            {
+                time = line.HitObject.StartTime;
+
+                if (time >= range.start && time <= range.end)
+                    line.Alpha = 1;
+                else
+                {
+                    double timeSeparation = time < range.start ? range.start - time : time - range.end;
+                    line.Alpha = (float)Math.Max(0, 1 - timeSeparation / visible_range);
+                }
+            }
+        }
+
+        private partial class DrawableGridLine : DrawableHitObject
+        {
+            public DrawableGridLine()
+                : base(new HitObject())
+            {
+                RelativeSizeAxes = Axes.X;
+                Height = 2;
+
+                AddInternal(new Box { RelativeSizeAxes = Axes.Both });
+            }
+
+            [BackgroundDependencyLoader]
+            private void load()
+            {
+                Origin = Anchor.BottomLeft;
+                Anchor = Anchor.BottomLeft;
+            }
+
+            protected override void UpdateInitialTransforms()
+            {
+                // don't perform any fading – we are handling that ourselves.
+                LifetimeEnd = HitObject.StartTime + visible_range;
+            }
+        }
+    }
+}

osu.Game.Rulesets.Catch/Edit/CatchHitObjectComposer.cs

@@ -33,6 +33,8 @@ namespace osu.Game.Rulesets.Catch.Edit
 
         private InputManager inputManager = null!;
 
+        private CatchBeatSnapGrid beatSnapGrid = null!;
+
         private readonly BindableDouble timeRangeMultiplier = new BindableDouble(1)
         {
             MinValue = 1,
@@ -65,6 +67,8 @@ namespace osu.Game.Rulesets.Catch.Edit
                 Catcher.BASE_DASH_SPEED, -Catcher.BASE_DASH_SPEED,
                 Catcher.BASE_WALK_SPEED, -Catcher.BASE_WALK_SPEED,
             }));
+
+            AddInternal(beatSnapGrid = new CatchBeatSnapGrid());
         }
 
         protected override void LoadComplete()
@@ -74,6 +78,29 @@ namespace osu.Game.Rulesets.Catch.Edit
             inputManager = GetContainingInputManager();
         }
 
+        protected override void UpdateAfterChildren()
+        {
+            base.UpdateAfterChildren();
+
+            if (BlueprintContainer.CurrentTool is SelectTool)
+            {
+                if (EditorBeatmap.SelectedHitObjects.Any())
+                {
+                    beatSnapGrid.SelectionTimeRange = (EditorBeatmap.SelectedHitObjects.Min(h => h.StartTime), EditorBeatmap.SelectedHitObjects.Max(h => h.GetEndTime()));
+                }
+                else
+                    beatSnapGrid.SelectionTimeRange = null;
+            }
+            else
+            {
+                var result = FindSnappedPositionAndTime(inputManager.CurrentState.Mouse.Position);
+                if (result.Time is double time)
+                    beatSnapGrid.SelectionTimeRange = (time, time);
+                else
+                    beatSnapGrid.SelectionTimeRange = null;
+            }
+        }
+
         protected override double ReadCurrentDistanceSnap(HitObject before, HitObject after)
         {
             // osu!catch's distance snap implementation is limited, in that a custom spacing cannot be specified.
@@ -132,7 +159,7 @@ namespace osu.Game.Rulesets.Catch.Edit
 
             result.ScreenSpacePosition.X = screenSpacePosition.X;
 
-            if (snapType.HasFlagFast(SnapType.Grids))
+            if (snapType.HasFlagFast(SnapType.RelativeGrids))
             {
                 if (distanceSnapGrid.IsPresent && distanceSnapGrid.GetSnappedPosition(result.ScreenSpacePosition) is SnapResult snapResult &&
                     Vector2.Distance(snapResult.ScreenSpacePosition, result.ScreenSpacePosition) < distance_snap_radius)

osu.Game.Rulesets.Catch/Mods/CatchModFloatingFruits.cs

@@ -21,10 +21,10 @@ namespace osu.Game.Rulesets.Catch.Mods
 
         public void ApplyToDrawableRuleset(DrawableRuleset<CatchHitObject> drawableRuleset)
         {
-            drawableRuleset.Anchor = Anchor.Centre;
+            drawableRuleset.PlayfieldAdjustmentContainer.Anchor = Anchor.Centre;
-            drawableRuleset.Origin = Anchor.Centre;
+            drawableRuleset.PlayfieldAdjustmentContainer.Origin = Anchor.Centre;
 
-            drawableRuleset.Scale = new Vector2(1, -1);
+            drawableRuleset.PlayfieldAdjustmentContainer.Scale = new Vector2(1, -1);
         }
     }
 }

osu.Game.Rulesets.Catch/Objects/Banana.cs

@@ -22,11 +22,11 @@ namespace osu.Game.Rulesets.Catch.Objects
 
         public override Judgement CreateJudgement() => new CatchBananaJudgement();
 
-        private static readonly List<HitSampleInfo> samples = new List<HitSampleInfo> { new BananaHitSampleInfo() };
+        private static readonly IList<HitSampleInfo> default_banana_samples = new List<HitSampleInfo> { new BananaHitSampleInfo() }.AsReadOnly();
 
         public Banana()
         {
-            Samples = samples;
+            Samples = default_banana_samples;
         }
 
         // override any external colour changes with banananana
@@ -47,18 +47,18 @@ namespace osu.Game.Rulesets.Catch.Objects
             }
         }
 
-        private class BananaHitSampleInfo : HitSampleInfo, IEquatable<BananaHitSampleInfo>
+        public class BananaHitSampleInfo : HitSampleInfo, IEquatable<BananaHitSampleInfo>
         {
             private static readonly string[] lookup_names = { "Gameplay/metronomelow", "Gameplay/catch-banana" };
 
             public override IEnumerable<string> LookupNames => lookup_names;
 
-            public BananaHitSampleInfo(int volume = 0)
+            public BananaHitSampleInfo(int volume = 100)
                 : base(string.Empty, volume: volume)
             {
             }
 
-            public sealed override HitSampleInfo With(Optional<string> newName = default, Optional<string?> newBank = default, Optional<string?> newSuffix = default, Optional<int> newVolume = default)
+            public sealed override HitSampleInfo With(Optional<string> newName = default, Optional<string> newBank = default, Optional<string?> newSuffix = default, Optional<int> newVolume = default)
                 => new BananaHitSampleInfo(newVolume.GetOr(Volume));
 
             public bool Equals(BananaHitSampleInfo? other)

osu.Game.Rulesets.Catch/Objects/BananaShower.cs

@@ -1,7 +1,9 @@
 // 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.Threading;
+using osu.Game.Audio;
 using osu.Game.Rulesets.Judgements;
 using osu.Game.Rulesets.Objects.Types;
 
@@ -39,6 +41,7 @@ namespace osu.Game.Rulesets.Catch.Objects
                 {
                     StartTime = time,
                     BananaIndex = i,
+                    Samples = new List<HitSampleInfo> { new Banana.BananaHitSampleInfo(CreateHitSampleInfo().Volume) }
                 });
 
                 time += spacing;

osu.Game.Rulesets.Catch/Objects/JuiceStream.cs

@@ -6,6 +6,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Threading;
 using Newtonsoft.Json;
+using osu.Framework.Bindables;
 using osu.Game.Audio;
 using osu.Game.Beatmaps;
 using osu.Game.Beatmaps.ControlPoints;
@@ -16,7 +17,7 @@ using osu.Game.Rulesets.Objects.Types;
 
 namespace osu.Game.Rulesets.Catch.Objects
 {
-    public class JuiceStream : CatchHitObject, IHasPathWithRepeats
+    public class JuiceStream : CatchHitObject, IHasPathWithRepeats, IHasSliderVelocity
     {
         /// <summary>
         /// Positional distance that results in a duration of one second, before any speed adjustments.
@@ -27,6 +28,19 @@ namespace osu.Game.Rulesets.Catch.Objects
 
         public int RepeatCount { get; set; }
 
+        public BindableNumber<double> SliderVelocityBindable { get; } = new BindableDouble(1)
+        {
+            Precision = 0.01,
+            MinValue = 0.1,
+            MaxValue = 10
+        };
+
+        public double SliderVelocity
+        {
+            get => SliderVelocityBindable.Value;
+            set => SliderVelocityBindable.Value = value;
+        }
+
         [JsonIgnore]
         private double velocityFactor;
 
@@ -34,10 +48,10 @@ namespace osu.Game.Rulesets.Catch.Objects
         private double tickDistanceFactor;
 
         [JsonIgnore]
-        public double Velocity => velocityFactor * DifficultyControlPoint.SliderVelocity;
+        public double Velocity => velocityFactor * SliderVelocity;
 
         [JsonIgnore]
-        public double TickDistance => tickDistanceFactor * DifficultyControlPoint.SliderVelocity;
+        public double TickDistance => tickDistanceFactor * SliderVelocity;
 
         /// <summary>
         /// The length of one span of this <see cref="JuiceStream"/>.

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

@@ -1,17 +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 System;
+using osu.Game.Rulesets.Judgements;
 using osu.Game.Rulesets.Scoring;
 
 namespace osu.Game.Rulesets.Catch.Scoring
 {
     public partial class CatchScoreProcessor : ScoreProcessor
     {
+        private const int combo_cap = 200;
+        private const double combo_base = 4;
+
         public CatchScoreProcessor()
             : base(new CatchRuleset())
         {
         }
 
-        protected override double ClassicScoreMultiplier => 28;
+        protected override double ComputeTotalScore(double comboProgress, double accuracyProgress, double bonusPortion)
+        {
+            return 600000 * comboProgress
+                   + 400000 * Accuracy.Value * accuracyProgress
+                   + bonusPortion;
+        }
+
+        protected override double GetComboScoreChange(JudgementResult result)
+            => Judgement.ToNumericResult(result.Type) * Math.Min(Math.Max(0.5, Math.Log(result.ComboAfterJudgement, combo_base)), Math.Log(combo_cap, combo_base));
     }
 }

osu.Game.Rulesets.Catch/Skinning/Legacy/LegacyCatchComboCounter.cs

@@ -2,7 +2,7 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using osu.Framework.Graphics;
-using osu.Framework.Graphics.Containers;
+using osu.Game.Graphics.Containers;
 using osu.Game.Rulesets.Catch.UI;
 using osu.Game.Skinning;
 using osuTK;
@@ -13,7 +13,7 @@ namespace osu.Game.Rulesets.Catch.Skinning.Legacy
     /// <summary>
     /// A combo counter implementation that visually behaves almost similar to stable's osu!catch combo counter.
     /// </summary>
-    public partial class LegacyCatchComboCounter : CompositeDrawable, ICatchComboCounter
+    public partial class LegacyCatchComboCounter : UprightAspectMaintainingContainer, ICatchComboCounter
     {
         private readonly LegacyRollingCounter counter;
 

osu.Game.Rulesets.Catch/UI/CatchPlayfield.cs

@@ -3,6 +3,7 @@
 
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Catch.Objects;
 using osu.Game.Rulesets.Catch.Objects.Drawables;
@@ -41,6 +42,8 @@ namespace osu.Game.Rulesets.Catch.UI
 
         internal CatcherArea CatcherArea { get; private set; } = null!;
 
+        public Container UnderlayElements { get; private set; } = null!;
+
         private readonly IBeatmapDifficultyInfo difficulty;
 
         public CatchPlayfield(IBeatmapDifficultyInfo difficulty)
@@ -62,6 +65,10 @@ namespace osu.Game.Rulesets.Catch.UI
 
             AddRangeInternal(new[]
             {
+                UnderlayElements = new Container
+                {
+                    RelativeSizeAxes = Axes.Both,
+                },
                 droppedObjectContainer,
                 Catcher.CreateProxiedContent(),
                 HitObjectContainer.CreateProxy(),

osu.Game.Rulesets.Mania.Tests.Android/MainActivity.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using Android.App;
 using osu.Framework.Android;
 using osu.Game.Tests;

osu.Game.Rulesets.Mania.Tests/Editor/ManiaSelectionBlueprintTestScene.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System.Collections.Generic;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
@@ -19,7 +17,7 @@ namespace osu.Game.Rulesets.Mania.Tests.Editor
     {
         protected override Container<Drawable> Content => blueprints ?? base.Content;
 
-        private readonly Container blueprints;
+        private readonly Container? blueprints;
 
         [Cached(typeof(Playfield))]
         public Playfield Playfield { get; }

osu.Game.Rulesets.Mania.Tests/Editor/TestSceneEditor.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using NUnit.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;

osu.Game.Rulesets.Mania.Tests/Editor/TestSceneHoldNotePlacementBlueprint.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using osu.Game.Rulesets.Edit;
 using osu.Game.Rulesets.Mania.Edit.Blueprints;
 using osu.Game.Rulesets.Mania.Objects;

osu.Game.Rulesets.Mania.Tests/Editor/TestSceneHoldNoteSelectionBlueprint.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using osu.Game.Beatmaps;
 using osu.Game.Beatmaps.ControlPoints;
 using osu.Game.Rulesets.Mania.Edit.Blueprints;

osu.Game.Rulesets.Mania.Tests/Editor/TestSceneManiaBeatSnapGrid.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System.Collections.Generic;
 using System.Linq;
 using osu.Framework.Allocation;

osu.Game.Rulesets.Mania.Tests/Editor/TestSceneManiaComposeScreen.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System;
 using System.Linq;
 using NUnit.Framework;
@@ -25,7 +23,7 @@ namespace osu.Game.Rulesets.Mania.Tests.Editor
     public partial class TestSceneManiaComposeScreen : EditorClockTestScene
     {
         [Resolved]
-        private SkinManager skins { get; set; }
+        private SkinManager skins { get; set; } = null!;
 
         [Cached]
         private EditorClipboard clipboard = new EditorClipboard();

osu.Game.Rulesets.Mania.Tests/Editor/TestSceneNoteSelectionBlueprint.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using osu.Game.Beatmaps;
 using osu.Game.Beatmaps.ControlPoints;
 using osu.Game.Rulesets.Mania.Edit.Blueprints;

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

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using NUnit.Framework;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Difficulty;

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

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System.Linq;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
@@ -14,7 +12,8 @@ namespace osu.Game.Rulesets.Mania.Tests
 {
     public abstract partial class ManiaInputTestScene : OsuTestScene
     {
-        private readonly Container<Drawable> content;
+        private readonly Container<Drawable>? content;
+
         protected override Container<Drawable> Content => content ?? base.Content;
 
         protected ManiaInputTestScene(int keys)

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

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System;
 using NUnit.Framework;
 using osu.Game.Beatmaps.Legacy;

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

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using NUnit.Framework;
 using osu.Game.Rulesets.Mania.Beatmaps;
 using osu.Game.Rulesets.Mania.Replays;

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

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System.Collections.Generic;
 using osu.Game.Rulesets.Mania.Beatmaps;
 using NUnit.Framework;

osu.Game.Rulesets.Mania.Tests/Skinning/ColumnTestContainer.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;

osu.Game.Rulesets.Mania.Tests/Skinning/ManiaHitObjectTestScene.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using NUnit.Framework;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;

osu.Game.Rulesets.Mania.Tests/Skinning/ManiaSkinnableTestScene.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using NUnit.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;

osu.Game.Rulesets.Mania.Tests/Skinning/TestSceneColumnBackground.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;

osu.Game.Rulesets.Mania.Tests/Skinning/TestSceneColumnHitObjectArea.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;

osu.Game.Rulesets.Mania.Tests/Skinning/TestSceneDrawableJudgement.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System;
 using System.Linq;
 using osu.Framework.Extensions;

osu.Game.Rulesets.Mania.Tests/Skinning/TestSceneHitExplosion.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System.Collections.Generic;
 using System.Linq;
 using NUnit.Framework;

osu.Game.Rulesets.Mania.Tests/Skinning/TestSceneHoldNote.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System.Collections.Generic;
 using System.Linq;
 using NUnit.Framework;

osu.Game.Rulesets.Mania.Tests/Skinning/TestSceneNote.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using osu.Game.Beatmaps;
 using osu.Game.Beatmaps.ControlPoints;
 using osu.Game.Rulesets.Mania.Objects;

osu.Game.Rulesets.Mania.Tests/Skinning/TestScenePlayfield.cs

@@ -1,13 +1,12 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System.Collections.Generic;
 using NUnit.Framework;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Mania.Beatmaps;
 using osu.Game.Rulesets.Mania.UI;
+using osuTK;
 
 namespace osu.Game.Rulesets.Mania.Tests.Skinning
 {
@@ -25,22 +24,35 @@ namespace osu.Game.Rulesets.Mania.Tests.Skinning
                     new StageDefinition(2)
                 };
 
-                SetContents(_ => new ManiaPlayfield(stageDefinitions));
+                SetContents(_ => new ManiaInputManager(new ManiaRuleset().RulesetInfo, 2)
+                {
+                    Child = new ManiaPlayfield(stageDefinitions)
+                });
             });
         }
 
-        [Test]
+        [TestCase(2)]
-        public void TestDualStages()
+        [TestCase(3)]
+        [TestCase(5)]
+        public void TestDualStages(int columnCount)
         {
             AddStep("create stage", () =>
             {
                 stageDefinitions = new List<StageDefinition>
                 {
-                    new StageDefinition(2),
+                    new StageDefinition(columnCount),
-                    new StageDefinition(2)
+                    new StageDefinition(columnCount)
                 };
 
-                SetContents(_ => new ManiaPlayfield(stageDefinitions));
+                SetContents(_ => new ManiaInputManager(new ManiaRuleset().RulesetInfo, (int)PlayfieldType.Dual + 2 * columnCount)
+                {
+                    Child = new ManiaPlayfield(stageDefinitions)
+                    {
+                        // bit of a hack to make sure the dual stages fit on screen without overlapping each other.
+                        Size = new Vector2(1.5f),
+                        Scale = new Vector2(1 / 1.5f)
+                    }
+                });
             });
         }
 

osu.Game.Rulesets.Mania.Tests/Skinning/TestSceneStage.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using osu.Framework.Allocation;
 using osu.Game.Rulesets.Mania.Beatmaps;
 using osu.Game.Rulesets.Mania.UI;

osu.Game.Rulesets.Mania.Tests/Skinning/TestSceneStageBackground.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Game.Rulesets.Mania.UI.Components;

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

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System.Linq;
 using NUnit.Framework;
 using osu.Framework.Testing;

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

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System;
 using System.Collections.Generic;
 using NUnit.Framework;

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

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System.Collections.Generic;
 using System.Linq;
 using NUnit.Framework;
@@ -40,7 +38,7 @@ namespace osu.Game.Rulesets.Mania.Tests
         private const double time_tail = 4000;
         private const double time_after_tail = 5250;
 
-        private List<JudgementResult> judgementResults;
+        private List<JudgementResult> judgementResults = new List<JudgementResult>();
 
         /// <summary>
         ///     -----[           ]-----
@@ -61,6 +59,44 @@ namespace osu.Game.Rulesets.Mania.Tests
             assertNoteJudgement(HitResult.IgnoreMiss);
         }
 
+        /// <summary>
+        ///     -----[           ]-----
+        ///          x           o
+        /// </summary>
+        [Test]
+        public void TestCorrectInput()
+        {
+            performTest(new List<ReplayFrame>
+            {
+                new ManiaReplayFrame(time_head, ManiaAction.Key1),
+                new ManiaReplayFrame(time_tail),
+            });
+
+            assertHeadJudgement(HitResult.Perfect);
+            assertTickJudgement(HitResult.LargeTickHit);
+            assertTailJudgement(HitResult.Perfect);
+            assertNoteJudgement(HitResult.IgnoreHit);
+        }
+
+        /// <summary>
+        ///     -----[           ]-----
+        ///          x                   o
+        /// </summary>
+        [Test]
+        public void TestLateRelease()
+        {
+            performTest(new List<ReplayFrame>
+            {
+                new ManiaReplayFrame(time_head, ManiaAction.Key1),
+                new ManiaReplayFrame(time_after_tail),
+            });
+
+            assertHeadJudgement(HitResult.Perfect);
+            assertTickJudgement(HitResult.LargeTickHit);
+            assertTailJudgement(HitResult.Miss);
+            assertNoteJudgement(HitResult.IgnoreMiss);
+        }
+
         /// <summary>
         ///     -----[           ]-----
         ///  x                           o
@@ -521,9 +557,9 @@ namespace osu.Game.Rulesets.Mania.Tests
         private void assertLastTickJudgement(HitResult result)
             => AddAssert($"last tick judged as {result}", () => judgementResults.Last(j => j.HitObject is HoldNoteTick).Type, () => Is.EqualTo(result));
 
-        private ScoreAccessibleReplayPlayer currentPlayer;
+        private ScoreAccessibleReplayPlayer currentPlayer = null!;
 
-        private void performTest(List<ReplayFrame> frames, Beatmap<ManiaHitObject> beatmap = null)
+        private void performTest(List<ReplayFrame> frames, Beatmap<ManiaHitObject>? beatmap = null)
         {
             if (beatmap == null)
             {
@@ -569,15 +605,13 @@ namespace osu.Game.Rulesets.Mania.Tests
             AddUntilStep("Beatmap at 0", () => Beatmap.Value.Track.CurrentTime == 0);
             AddUntilStep("Wait until player is loaded", () => currentPlayer.IsCurrentScreen());
 
-            AddUntilStep("Wait for completion", () => currentPlayer.ScoreProcessor?.HasCompleted.Value == true);
+            AddUntilStep("Wait for completion", () => currentPlayer.ScoreProcessor.HasCompleted.Value);
         }
 
         private partial class ScoreAccessibleReplayPlayer : ReplayPlayer
         {
             public new ScoreProcessor ScoreProcessor => base.ScoreProcessor;
 
-            public new GameplayClockContainer GameplayClockContainer => base.GameplayClockContainer;
-
             protected override bool PauseOnFocusLost => false;
 
             public ScoreAccessibleReplayPlayer(Score score)

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

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System.Reflection;
 using NUnit.Framework;
 using osu.Framework.IO.Stores;

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

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using osu.Framework.Extensions.ObjectExtensions;
 using osu.Game.Rulesets.Mania.Configuration;
 using osu.Game.Rulesets.Mania.UI;

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

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using NUnit.Framework;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Shapes;

osu.Game.Rulesets.Mania/Beatmaps/ManiaBeatmap.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System;
 using System.Collections.Generic;
 using System.Linq;

osu.Game.Rulesets.Mania/Beatmaps/ManiaBeatmapConverter.cs

@@ -119,14 +119,12 @@ namespace osu.Game.Rulesets.Mania.Beatmaps
                 yield return obj;
         }
 
-        private readonly List<double> prevNoteTimes = new List<double>(max_notes_for_density);
+        private readonly LimitedCapacityQueue<double> prevNoteTimes = new LimitedCapacityQueue<double>(max_notes_for_density);
         private double density = int.MaxValue;
 
         private void computeDensity(double newNoteTime)
         {
-            if (prevNoteTimes.Count == max_notes_for_density)
+            prevNoteTimes.Enqueue(newNoteTime);
-                prevNoteTimes.RemoveAt(0);
-            prevNoteTimes.Add(newNoteTime);
 
             if (prevNoteTimes.Count >= 2)
                 density = (prevNoteTimes[^1] - prevNoteTimes[0]) / prevNoteTimes.Count;

osu.Game.Rulesets.Mania/Beatmaps/Patterns/Legacy/DistanceObjectPatternGenerator.cs

@@ -14,7 +14,6 @@ using osu.Game.Rulesets.Objects;
 using osu.Game.Rulesets.Objects.Types;
 using osu.Game.Rulesets.Mania.Objects;
 using osu.Game.Beatmaps.ControlPoints;
-using osu.Game.Beatmaps.Formats;
 using osu.Game.Utils;
 
 namespace osu.Game.Rulesets.Mania.Beatmaps.Patterns.Legacy
@@ -49,15 +48,14 @@ namespace osu.Game.Rulesets.Mania.Beatmaps.Patterns.Legacy
             Debug.Assert(distanceData != null);
 
             TimingControlPoint timingPoint = beatmap.ControlPointInfo.TimingPointAt(hitObject.StartTime);
-            DifficultyControlPoint difficultyPoint = hitObject.DifficultyControlPoint;
 
             double beatLength;
-#pragma warning disable 618
+            if (hitObject.LegacyBpmMultiplier.HasValue)
-            if (difficultyPoint is LegacyBeatmapDecoder.LegacyDifficultyControlPoint legacyDifficultyPoint)
+                beatLength = timingPoint.BeatLength * hitObject.LegacyBpmMultiplier.Value;
-#pragma warning restore 618
+            else if (hitObject is IHasSliderVelocity hasSliderVelocity)
-                beatLength = timingPoint.BeatLength * legacyDifficultyPoint.BpmMultiplier;
+                beatLength = timingPoint.BeatLength / hasSliderVelocity.SliderVelocity;
             else
-                beatLength = timingPoint.BeatLength / difficultyPoint.SliderVelocity;
+                beatLength = timingPoint.BeatLength;
 
             SpanCount = repeatsData?.SpanCount() ?? 1;
             StartTime = (int)Math.Round(hitObject.StartTime);

osu.Game.Rulesets.Mania/Beatmaps/Patterns/Legacy/EndTimeObjectPatternGenerator.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System.Collections.Generic;
 using osu.Game.Rulesets.Objects;
 using osu.Game.Rulesets.Objects.Types;

osu.Game.Rulesets.Mania/Beatmaps/Patterns/Legacy/HitObjectPatternGenerator.cs

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System;
 using System.Collections.Generic;
 using System.Linq;

osu.Game.Rulesets.Mania/Beatmaps/Patterns/Legacy/PatternType.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System;
 
 namespace osu.Game.Rulesets.Mania.Beatmaps.Patterns.Legacy

osu.Game.Rulesets.Mania/Beatmaps/Patterns/PatternGenerator.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System;
 using System.Collections.Generic;
 using osu.Game.Rulesets.Objects;

osu.Game.Rulesets.Mania/Beatmaps/StageDefinition.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System;
 using osu.Game.Rulesets.Mania.UI;
 

osu.Game.Rulesets.Mania/Configuration/ManiaRulesetConfigManager.cs

@@ -21,18 +21,29 @@ namespace osu.Game.Rulesets.Mania.Configuration
         {
             base.InitialiseDefaults();
 
-            SetDefault(ManiaRulesetSetting.ScrollTime, 1500.0, DrawableManiaRuleset.MIN_TIME_RANGE, DrawableManiaRuleset.MAX_TIME_RANGE, 5);
+            SetDefault(ManiaRulesetSetting.ScrollSpeed, 8, 1, 40);
             SetDefault(ManiaRulesetSetting.ScrollDirection, ManiaScrollingDirection.Down);
             SetDefault(ManiaRulesetSetting.TimingBasedNoteColouring, false);
+
+#pragma warning disable CS0618
+            // Although obsolete, this is still required to populate the bindable from the database in case migration is required.
+            SetDefault<double?>(ManiaRulesetSetting.ScrollTime, null);
+
+            if (Get<double?>(ManiaRulesetSetting.ScrollTime) is double scrollTime)
+            {
+                SetValue(ManiaRulesetSetting.ScrollSpeed, (int)Math.Round(DrawableManiaRuleset.MAX_TIME_RANGE / scrollTime));
+                SetValue<double?>(ManiaRulesetSetting.ScrollTime, null);
+            }
+#pragma warning restore CS0618
         }
 
         public override TrackedSettings CreateTrackedSettings() => new TrackedSettings
         {
-            new TrackedSetting<double>(ManiaRulesetSetting.ScrollTime,
+            new TrackedSetting<int>(ManiaRulesetSetting.ScrollSpeed,
-                scrollTime => new SettingDescription(
+                speed => new SettingDescription(
-                    rawValue: scrollTime,
+                    rawValue: speed,
                     name: RulesetSettingsStrings.ScrollSpeed,
-                    value: RulesetSettingsStrings.ScrollSpeedTooltip(scrollTime, (int)Math.Round(DrawableManiaRuleset.MAX_TIME_RANGE / scrollTime))
+                    value: RulesetSettingsStrings.ScrollSpeedTooltip((int)DrawableManiaRuleset.ComputeScrollTime(speed), speed)
                 )
             )
         };
@@ -40,7 +51,9 @@ namespace osu.Game.Rulesets.Mania.Configuration
 
     public enum ManiaRulesetSetting
     {
+        [Obsolete("Use ScrollSpeed instead.")] // Can be removed 2023-11-30
         ScrollTime,
+        ScrollSpeed,
         ScrollDirection,
         TimingBasedNoteColouring
     }

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

@@ -1,8 +1,6 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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 disable
-
 using System;
 using System.Collections.Generic;
 using System.Linq;