Merge branch 'master' into refactor-scrolling-hoc-2

.config/dotnet-tools.json

@@ -2,12 +2,6 @@
   "version": 1,
   "isRoot": true,
   "tools": {
-    "cake.tool": {
-      "version": "0.35.0",
-      "commands": [
-        "dotnet-cake"
-      ]
-    },
     "dotnet-format": {
       "version": "3.1.37601",
       "commands": [
@@ -20,14 +14,14 @@
         "jb"
       ]
     },
-    "nvika": {
-      "version": "2.0.0",
+    "smoogipoo.nvika": {
+      "version": "1.0.1",
       "commands": [
         "nvika"
       ]
     },
     "codefilesanity": {
-      "version": "15.0.0",
+      "version": "0.0.36",
       "commands": [
         "CodeFileSanity"
       ]
@@ -39,4 +33,4 @@
       ]
     }
   }
-}
+}

.github/workflows/ci.yml

@@ -0,0 +1,93 @@
+on: [push, pull_request]
+name: Continuous Integration
+
+jobs:
+  test:
+    name: Test
+    runs-on: ${{matrix.os.fullname}}
+    env:
+      OSU_EXECUTION_MODE: ${{matrix.threadingMode}}
+    strategy:
+       fail-fast: false
+       matrix:
+          os:
+            - { prettyname: Windows, fullname: windows-latest }
+            - { prettyname: macOS, fullname: macos-latest }
+            - { prettyname: Linux, fullname: ubuntu-latest }
+          threadingMode: ['SingleThread', 'MultiThreaded']
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Install .NET 5.0.x
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: "5.0.x"
+
+      # FIXME: libavformat is not included in Ubuntu. Let's fix that.
+      # https://github.com/ppy/osu-framework/issues/4349
+      # Remove this once https://github.com/actions/virtual-environments/issues/3306 has been resolved.
+      - name: Install libavformat-dev
+        if: ${{matrix.os.fullname == 'ubuntu-latest'}}
+        run: |
+         sudo apt-get update && \
+         sudo apt-get -y install libavformat-dev
+
+      - name: Compile
+        run: dotnet build -c Debug -warnaserror osu.Desktop.slnf
+
+      - name: Test
+        run: dotnet test $pwd/*.Tests/bin/Debug/*/*.Tests.dll --logger "trx;LogFileName=TestResults-${{matrix.os.prettyname}}-${{matrix.threadingMode}}.trx"
+        shell: pwsh
+
+      # Attempt to upload results even if test fails.
+      # https://docs.github.com/en/actions/reference/context-and-expression-syntax-for-github-actions#always
+      - name: Upload Test Results
+        uses: actions/upload-artifact@v2
+        if: ${{ always() }}
+        with:
+          name: osu-test-results-${{matrix.os.prettyname}}-${{matrix.threadingMode}}
+          path: ${{github.workspace}}/TestResults/TestResults-${{matrix.os.prettyname}}-${{matrix.threadingMode}}.trx
+
+  inspect-code:
+    name: Code Quality
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      # FIXME: Tools won't run in .NET 5.0 unless you install 3.1.x LTS side by side.
+      # https://itnext.io/how-to-support-multiple-net-sdks-in-github-actions-workflows-b988daa884e
+      - name: Install .NET 3.1.x LTS
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: "3.1.x"
+
+      - name: Install .NET 5.0.x
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: "5.0.x"
+
+      - name: Restore Tools
+        run: dotnet tool restore
+
+      - name: Restore Packages
+        run: dotnet restore
+
+      - name: CodeFileSanity
+        run: |
+          # TODO: Add ignore filters and GitHub Workflow Command Reporting in CFS. That way we don't have to do this workaround.
+          # FIXME: Suppress warnings from templates project
+          dotnet codefilesanity | while read -r line; do
+            echo "::warning::$line"
+          done
+
+      # Temporarily disabled due to test failures, but it won't work anyway until the tool is upgraded.
+      # - name: .NET Format (Dry Run)
+      #   run: dotnet format --dry-run --check
+
+      - name: InspectCode
+        run: dotnet jb inspectcode $(pwd)/osu.Desktop.slnf --output=$(pwd)/inspectcodereport.xml --cachesDir=$(pwd)/inspectcode --verbosity=WARN
+
+      - name: NVika
+        run: dotnet nvika parsereport "${{github.workspace}}/inspectcodereport.xml" --treatwarningsaserrors

.github/workflows/report-nunit.yml

@@ -0,0 +1,31 @@
+# This is a workaround to allow PRs to report their coverage. This will run inside the base repository.
+# See:
+#   * https://github.com/dorny/test-reporter#recommended-setup-for-public-repositories
+#   * https://docs.github.com/en/actions/reference/authentication-in-a-workflow#permissions-for-the-github_token
+name: Annotate CI run with test results
+on:
+  workflow_run:
+    workflows: ["Continuous Integration"]
+    types:
+      - completed
+jobs:
+  annotate:
+    name: Annotate CI run with test results
+    runs-on: ubuntu-latest
+    if: ${{ github.event.workflow_run.conclusion != 'cancelled' }}
+    strategy:
+       fail-fast: false
+       matrix:
+          os:
+            - { prettyname: Windows }
+            - { prettyname: macOS }
+            - { prettyname: Linux }
+          threadingMode: ['SingleThread', 'MultiThreaded']
+    steps:
+      - name: Annotate CI run with test results
+        uses: dorny/test-reporter@v1.4.2
+        with:
+          artifact: osu-test-results-${{matrix.os.prettyname}}-${{matrix.threadingMode}}
+          name: Test Results (${{matrix.os.prettyname}}, ${{matrix.threadingMode}})
+          path: "*.trx"
+          reporter: dotnet-trx

.vscode/launch.json

@@ -113,20 +113,6 @@
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build benchmarks",
             "console": "internalConsole"
-        },
-        {
-            "name": "Cake: Debug Script",
-            "type": "coreclr",
-            "request": "launch",
-            "program": "${workspaceRoot}/build/tools/Cake.CoreCLR/0.30.0/Cake.dll",
-            "args": [
-                "${workspaceRoot}/build/build.cake",
-                "--debug",
-                "--verbosity=diagnostic"
-            ],
-            "cwd": "${workspaceRoot}/build",
-            "stopAtEntry": true,
-            "externalConsole": false
         }
     ]
 }

InspectCode.ps1

@@ -1,27 +1,11 @@
-[CmdletBinding()]
-Param(
-    [string]$Target,
-    [string]$Configuration,
-    [ValidateSet("Quiet", "Minimal", "Normal", "Verbose", "Diagnostic")]
-    [string]$Verbosity,
-    [switch]$ShowDescription,
-    [Alias("WhatIf", "Noop")]
-    [switch]$DryRun,
-    [Parameter(Position = 0, Mandatory = $false, ValueFromRemainingArguments = $true)]
-    [string[]]$ScriptArgs
-)
-
-# Build Cake arguments
-$cakeArguments = "";
-if ($Target) { $cakeArguments += "-target=$Target" }
-if ($Configuration) { $cakeArguments += "-configuration=$Configuration" }
-if ($Verbosity) { $cakeArguments += "-verbosity=$Verbosity" }
-if ($ShowDescription) { $cakeArguments += "-showdescription" }
-if ($DryRun) { $cakeArguments += "-dryrun" }
-if ($Experimental) { $cakeArguments += "-experimental" }
-$cakeArguments += $ScriptArgs
-
 dotnet tool restore
-dotnet cake ./build/InspectCode.cake --bootstrap
-dotnet cake ./build/InspectCode.cake $cakeArguments
-exit $LASTEXITCODE
+
+# Temporarily disabled until the tool is upgraded to 5.0.
+  # The version specified in .config/dotnet-tools.json (3.1.37601) won't run on .NET hosts >=5.0.7.
+  # - cmd: dotnet format --dry-run --check
+
+dotnet CodeFileSanity
+dotnet jb inspectcode "osu.Desktop.slnf" --output="inspectcodereport.xml" --caches-home="inspectcode" --verbosity=WARN
+dotnet nvika parsereport "inspectcodereport.xml" --treatwarningsaserrors
+
+exit $LASTEXITCODE

InspectCode.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+dotnet tool restore
+dotnet CodeFileSanity
+dotnet jb inspectcode "osu.Desktop.slnf" --output="inspectcodereport.xml" --caches-home="inspectcode" --verbosity=WARN
+dotnet nvika parsereport "inspectcodereport.xml" --treatwarningsaserrors

appveyor.yml

@@ -1,28 +1,27 @@
 clone_depth: 1
 version: '{branch}-{build}'
 image: Visual Studio 2019
+cache:
+  - '%LOCALAPPDATA%\NuGet\v3-cache -> appveyor.yml'
+
 dotnet_csproj:
   patch: true
   file: 'osu.Game\osu.Game.csproj' # Use wildcard when it's able to exclude Xamarin projects
   version: '0.0.{build}'
-cache:
-  - '%LOCALAPPDATA%\NuGet\v3-cache -> appveyor.yml'
+
 before_build:
-  - ps: dotnet --info # Useful when version mismatch between CI and local
-  - ps: nuget restore -verbosity quiet # Only nuget.exe knows both new (.NET Core) and old (Xamarin) projects
+  - cmd: dotnet --info # Useful when version mismatch between CI and local
+  - cmd: nuget restore -verbosity quiet # Only nuget.exe knows both new (.NET Core) and old (Xamarin) projects
+
 build:
   project: osu.sln
   parallel: true
   verbosity: minimal
   publish_nuget: true
+
 after_build:
-  - ps: dotnet tool restore
-
-  # Temporarily disabled until the tool is upgraded to 5.0.
-  # The version specified in .config/dotnet-tools.json (3.1.37601) won't run on .NET hosts >=5.0.7.
-  # - ps: dotnet format --dry-run --check
-
   - ps: .\InspectCode.ps1
+
 test:
   assemblies:
     except:

build/Desktop.proj

@@ -1,17 +0,0 @@
-<Project Sdk="Microsoft.Build.Traversal">
-  <ItemGroup>
-    <ProjectReference Include="..\osu.Desktop\osu.Desktop.csproj" />
-    <ProjectReference Include="..\osu.Game.Rulesets.Catch.Tests\osu.Game.Rulesets.Catch.Tests.csproj" />
-    <ProjectReference Include="..\osu.Game.Rulesets.Catch\osu.Game.Rulesets.Catch.csproj" />
-    <ProjectReference Include="..\osu.Game.Rulesets.Mania.Tests\osu.Game.Rulesets.Mania.Tests.csproj" />
-    <ProjectReference Include="..\osu.Game.Rulesets.Mania\osu.Game.Rulesets.Mania.csproj" />
-    <ProjectReference Include="..\osu.Game.Rulesets.Osu.Tests\osu.Game.Rulesets.Osu.Tests.csproj" />
-    <ProjectReference Include="..\osu.Game.Rulesets.Osu\osu.Game.Rulesets.Osu.csproj" />
-    <ProjectReference Include="..\osu.Game.Rulesets.Taiko.Tests\osu.Game.Rulesets.Taiko.Tests.csproj" />
-    <ProjectReference Include="..\osu.Game.Rulesets.Taiko\osu.Game.Rulesets.Taiko.csproj" />
-    <ProjectReference Include="..\osu.Game.Tests\osu.Game.Tests.csproj" />
-    <ProjectReference Include="..\osu.Game.Tournament.Tests\osu.Game.Tournament.Tests.csproj" />
-    <ProjectReference Include="..\osu.Game.Tournament\osu.Game.Tournament.csproj" />
-    <ProjectReference Include="..\osu.Game\osu.Game.csproj" />
-  </ItemGroup>
-</Project>

build/InspectCode.cake

@@ -1,41 +0,0 @@
-#addin "nuget:?package=CodeFileSanity&version=0.0.36"
-
-///////////////////////////////////////////////////////////////////////////////
-// ARGUMENTS
-///////////////////////////////////////////////////////////////////////////////
-
-var target = Argument("target", "CodeAnalysis");
-var configuration = Argument("configuration", "Release");
-
-var rootDirectory = new DirectoryPath("..");
-var sln = rootDirectory.CombineWithFilePath("osu.sln");
-var desktopSlnf = rootDirectory.CombineWithFilePath("osu.Desktop.slnf");
-
-///////////////////////////////////////////////////////////////////////////////
-// TASKS
-///////////////////////////////////////////////////////////////////////////////
-
-Task("InspectCode")
-    .Does(() => {
-        var inspectcodereport = "inspectcodereport.xml";
-        var cacheDir = "inspectcode";
-        var verbosity = AppVeyor.IsRunningOnAppVeyor ? "WARN" : "INFO"; // Don't flood CI output
-
-        DotNetCoreTool(rootDirectory.FullPath,
-            "jb", $@"inspectcode ""{desktopSlnf}"" --output=""{inspectcodereport}"" --caches-home=""{cacheDir}"" --verbosity={verbosity}");
-        DotNetCoreTool(rootDirectory.FullPath, "nvika", $@"parsereport ""{inspectcodereport}"" --treatwarningsaserrors");
-    });
-
-Task("CodeFileSanity")
-    .Does(() => {
-        ValidateCodeSanity(new ValidateCodeSanitySettings {
-            RootDirectory = rootDirectory.FullPath,
-            IsAppveyorBuild = AppVeyor.IsRunningOnAppVeyor
-        });
-    });
-
-Task("CodeAnalysis")
-    .IsDependentOn("CodeFileSanity")
-    .IsDependentOn("InspectCode");
-
-RunTarget(target);

cake.config

@@ -1,5 +0,0 @@
-
-[Nuget]
-Source=https://api.nuget.org/v3/index.json
-UseInProcessClient=true
-LoadDependencies=true

osu.Android.props

@@ -51,7 +51,7 @@
     <Reference Include="Java.Interop" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="ppy.osu.Game.Resources" Version="2021.611.0" />
+    <PackageReference Include="ppy.osu.Game.Resources" Version="2021.614.0" />
     <PackageReference Include="ppy.osu.Framework.Android" Version="2021.614.0" />
   </ItemGroup>
 </Project>

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

@@ -0,0 +1,102 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System.Collections.Generic;
+using osu.Framework.Bindables;
+using osu.Framework.Extensions.IEnumerableExtensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Sprites;
+using osu.Game.Configuration;
+using osu.Game.Rulesets.Mods;
+using osu.Game.Rulesets.Objects.Drawables;
+using osu.Game.Rulesets.Osu.Objects.Drawables;
+
+namespace osu.Game.Rulesets.Osu.Mods
+{
+    public class OsuModApproachDifferent : Mod, IApplicableToDrawableHitObjects
+    {
+        public override string Name => "Approach Different";
+        public override string Acronym => "AD";
+        public override string Description => "Never trust the approach circles...";
+        public override double ScoreMultiplier => 1;
+        public override IconUsage? Icon { get; } = FontAwesome.Regular.Circle;
+
+        [SettingSource("Initial size", "Change the initial size of the approach circle, relative to hit circles.", 0)]
+        public BindableFloat Scale { get; } = new BindableFloat(4)
+        {
+            Precision = 0.1f,
+            MinValue = 2,
+            MaxValue = 10,
+        };
+
+        [SettingSource("Style", "Change the animation style of the approach circles.", 1)]
+        public Bindable<AnimationStyle> Style { get; } = new Bindable<AnimationStyle>();
+
+        public void ApplyToDrawableHitObjects(IEnumerable<DrawableHitObject> drawables)
+        {
+            drawables.ForEach(drawable =>
+            {
+                drawable.ApplyCustomUpdateState += (drawableObject, state) =>
+                {
+                    if (!(drawableObject is DrawableHitCircle drawableHitCircle)) return;
+
+                    var hitCircle = drawableHitCircle.HitObject;
+
+                    drawableHitCircle.ApproachCircle.ClearTransforms(targetMember: nameof(Scale));
+
+                    using (drawableHitCircle.BeginAbsoluteSequence(hitCircle.StartTime - hitCircle.TimePreempt))
+                        drawableHitCircle.ApproachCircle.ScaleTo(Scale.Value).ScaleTo(1f, hitCircle.TimePreempt, getEasing(Style.Value));
+                };
+            });
+        }
+
+        private Easing getEasing(AnimationStyle style)
+        {
+            switch (style)
+            {
+                default:
+                    return Easing.None;
+
+                case AnimationStyle.Accelerate1:
+                    return Easing.In;
+
+                case AnimationStyle.Accelerate2:
+                    return Easing.InCubic;
+
+                case AnimationStyle.Accelerate3:
+                    return Easing.InQuint;
+
+                case AnimationStyle.Gravity:
+                    return Easing.InBack;
+
+                case AnimationStyle.Decelerate1:
+                    return Easing.Out;
+
+                case AnimationStyle.Decelerate2:
+                    return Easing.OutCubic;
+
+                case AnimationStyle.Decelerate3:
+                    return Easing.OutQuint;
+
+                case AnimationStyle.InOut1:
+                    return Easing.InOutCubic;
+
+                case AnimationStyle.InOut2:
+                    return Easing.InOutQuint;
+            }
+        }
+
+        public enum AnimationStyle
+        {
+            Gravity,
+            InOut1,
+            InOut2,
+            Accelerate1,
+            Accelerate2,
+            Accelerate3,
+            Decelerate1,
+            Decelerate2,
+            Decelerate3,
+        }
+    }
+}

osu.Game.Rulesets.Osu/OsuRuleset.cs

@@ -187,6 +187,7 @@ namespace osu.Game.Rulesets.Osu
                         new MultiMod(new ModWindUp(), new ModWindDown()),
                         new OsuModTraceable(),
                         new OsuModBarrelRoll(),
+                        new OsuModApproachDifferent(),
                     };
 
                 case ModType.System:

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

@@ -12,6 +12,7 @@ using osu.Game.Rulesets.Osu.Objects;
 using osu.Game.Rulesets.Osu.Objects.Drawables;
 using osu.Game.Skinning;
 using osuTK;
+using osuTK.Graphics;
 
 namespace osu.Game.Rulesets.Osu.Skinning.Legacy
 {
@@ -40,6 +41,7 @@ namespace osu.Game.Rulesets.Osu.Skinning.Legacy
                     Anchor = Anchor.TopCentre,
                     Origin = Anchor.Centre,
                     Texture = source.GetTexture("spinner-background"),
+                    Colour = source.GetConfig<OsuSkinColour, Color4>(OsuSkinColour.SpinnerBackground)?.Value ?? new Color4(100, 100, 100, 255),
                     Scale = new Vector2(SPRITE_SCALE),
                     Y = SPINNER_Y_CENTRE,
                 },

osu.Game.Rulesets.Osu/Skinning/OsuSkinColour.cs

@@ -7,6 +7,7 @@ namespace osu.Game.Rulesets.Osu.Skinning
     {
         SliderTrackOverride,
         SliderBorder,
-        SliderBall
+        SliderBall,
+        SpinnerBackground,
     }
 }

osu.Game.Tests/Collections/IO/ImportCollectionsTest.cs

@@ -113,7 +113,6 @@ namespace osu.Game.Tests.Collections.IO
                         await importCollectionsFromStream(osu, ms);
                     }
 
-                    Assert.That(host.UpdateThread.Running, Is.True);
                     Assert.That(exceptionThrown, Is.False);
                     Assert.That(osu.CollectionManager.Collections.Count, Is.EqualTo(0));
                 }

osu.Game.Tests/Visual/Background/TestSceneSeasonalBackgroundLoader.cs

@@ -161,15 +161,18 @@ namespace osu.Game.Tests.Visual.Background
 
         private void loadNextBackground()
         {
+            SeasonalBackground previousBackground = null;
             SeasonalBackground background = null;
 
             AddStep("create next background", () =>
             {
+                previousBackground = (SeasonalBackground)backgroundContainer.SingleOrDefault();
                 background = backgroundLoader.LoadNextBackground();
                 LoadComponentAsync(background, bg => backgroundContainer.Child = bg);
             });
 
             AddUntilStep("background loaded", () => background.IsLoaded);
+            AddAssert("background is different", () => !background.Equals(previousBackground));
         }
 
         private void assertAnyBackground()

osu.Game/Beatmaps/DifficultyRecommender.cs

@@ -101,10 +101,20 @@ namespace osu.Game.Beatmaps
         /// Rulesets ordered descending by their respective recommended difficulties.
         /// The currently selected ruleset will always be first.
         /// </returns>
-        private IEnumerable<RulesetInfo> orderedRulesets =>
-            recommendedDifficultyMapping
-                .OrderByDescending(pair => pair.Value).Select(pair => pair.Key).Where(r => !r.Equals(ruleset.Value))
-                .Prepend(ruleset.Value);
+        private IEnumerable<RulesetInfo> orderedRulesets
+        {
+            get
+            {
+                if (LoadState < LoadState.Ready || ruleset.Value == null)
+                    return Enumerable.Empty<RulesetInfo>();
+
+                return recommendedDifficultyMapping
+                       .OrderByDescending(pair => pair.Value)
+                       .Select(pair => pair.Key)
+                       .Where(r => !r.Equals(ruleset.Value))
+                       .Prepend(ruleset.Value);
+            }
+        }
 
         private void onlineStateChanged(ValueChangedEvent<APIState> state) => Schedule(() =>
         {

osu.Game/Extensions/LanguageExtensions.cs

@@ -0,0 +1,33 @@
+// 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.Globalization;
+using osu.Game.Localisation;
+
+namespace osu.Game.Extensions
+{
+    /// <summary>
+    /// Conversion utilities for the <see cref="Language"/> enum.
+    /// </summary>
+    public static class LanguageExtensions
+    {
+        /// <summary>
+        /// Returns the culture code of the <see cref="CultureInfo"/> that corresponds to the supplied <paramref name="language"/>.
+        /// </summary>
+        /// <remarks>
+        /// This is required as enum member names are not allowed to contain hyphens.
+        /// </remarks>
+        public static string ToCultureCode(this Language language)
+            => language.ToString().Replace("_", "-");
+
+        /// <summary>
+        /// Attempts to parse the supplied <paramref name="cultureCode"/> to a <see cref="Language"/> value.
+        /// </summary>
+        /// <param name="cultureCode">The code of the culture to parse.</param>
+        /// <param name="language">The parsed <see cref="Language"/>. Valid only if the return value of the method is <see langword="true" />.</param>
+        /// <returns>Whether the parsing succeeded.</returns>
+        public static bool TryParseCultureCode(string cultureCode, out Language language)
+            => Enum.TryParse(cultureCode.Replace("-", "_"), out language);
+    }
+}

osu.Game/Graphics/Backgrounds/SeasonalBackgroundLoader.cs

@@ -99,5 +99,14 @@ namespace osu.Game.Graphics.Backgrounds
             // ensure we're not loading in without a transition.
             this.FadeInFromZero(200, Easing.InOutSine);
         }
+
+        public override bool Equals(Background other)
+        {
+            if (ReferenceEquals(null, other)) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return other.GetType() == GetType()
+                   && ((SeasonalBackground)other).url == url;
+        }
     }
 }

osu.Game/Localisation/Language.cs

@@ -10,7 +10,104 @@ namespace osu.Game.Localisation
         [Description(@"English")]
         en,
 
+        // TODO: Requires Arabic glyphs to be added to resources (and possibly also RTL support).
+        // [Description(@"اَلْعَرَبِيَّةُ")]
+        // ar,
+
+        // TODO: Some accented glyphs are missing. Revisit when adding Inter.
+        // [Description(@"Беларуская мова")]
+        // be,
+
+        [Description(@"Български")]
+        bg,
+
+        [Description(@"Česky")]
+        cs,
+
+        [Description(@"Dansk")]
+        da,
+
+        [Description(@"Deutsch")]
+        de,
+
+        // TODO: Some accented glyphs are missing. Revisit when adding Inter.
+        // [Description(@"Ελληνικά")]
+        // el,
+
+        [Description(@"español")]
+        es,
+
+        [Description(@"Suomi")]
+        fi,
+
+        [Description(@"français")]
+        fr,
+
+        [Description(@"Magyar")]
+        hu,
+
+        [Description(@"Bahasa Indonesia")]
+        id,
+
+        [Description(@"Italiano")]
+        it,
+
         [Description(@"日本語")]
-        ja
+        ja,
+
+        [Description(@"한국어")]
+        ko,
+
+        [Description(@"Nederlands")]
+        nl,
+
+        [Description(@"Norsk")]
+        no,
+
+        [Description(@"polski")]
+        pl,
+
+        [Description(@"Português")]
+        pt,
+
+        [Description(@"Português (Brasil)")]
+        pt_br,
+
+        [Description(@"Română")]
+        ro,
+
+        [Description(@"Русский")]
+        ru,
+
+        [Description(@"Slovenčina")]
+        sk,
+
+        [Description(@"Svenska")]
+        se,
+
+        [Description(@"ไทย")]
+        th,
+
+        [Description(@"Tagalog")]
+        tl,
+
+        [Description(@"Türkçe")]
+        tr,
+
+        // TODO: Some accented glyphs are missing. Revisit when adding Inter.
+        // [Description(@"Українська мова")]
+        // uk,
+
+        [Description(@"Tiếng Việt")]
+        vn,
+
+        [Description(@"简体中文")]
+        zh,
+
+        [Description(@"繁體中文（香港）")]
+        zh_hk,
+
+        [Description(@"繁體中文（台灣）")]
+        zh_tw
     }
 }

osu.Game/OsuGame.cs

@@ -50,6 +50,7 @@ using osu.Game.Updater;
 using osu.Game.Utils;
 using LogLevel = osu.Framework.Logging.LogLevel;
 using osu.Game.Database;
+using osu.Game.Extensions;
 using osu.Game.IO;
 using osu.Game.Localisation;
 using osu.Game.Skinning.Editor;
@@ -426,9 +427,12 @@ namespace osu.Game
         {
             // The given ScoreInfo may have missing properties if it was retrieved from online data. Re-retrieve it from the database
             // to ensure all the required data for presenting a replay are present.
-            var databasedScoreInfo = score.OnlineScoreID != null
-                ? ScoreManager.Query(s => s.OnlineScoreID == score.OnlineScoreID)
-                : ScoreManager.Query(s => s.Hash == score.Hash);
+            ScoreInfo databasedScoreInfo = null;
+
+            if (score.OnlineScoreID != null)
+                databasedScoreInfo = ScoreManager.Query(s => s.OnlineScoreID == score.OnlineScoreID);
+
+            databasedScoreInfo ??= ScoreManager.Query(s => s.Hash == score.Hash);
 
             if (databasedScoreInfo == null)
             {
@@ -577,7 +581,7 @@ namespace osu.Game
 
             foreach (var language in Enum.GetValues(typeof(Language)).OfType<Language>())
             {
-                var cultureCode = language.ToString();
+                var cultureCode = language.ToCultureCode();
                 Localisation.AddLanguage(cultureCode, new ResourceManagerLocalisationStore(cultureCode));
             }
 
@@ -712,7 +716,6 @@ namespace osu.Game
                 PostNotification = n => notifications.Post(n),
             }, Add, true);
 
-            loadComponentSingleFile(difficultyRecommender, Add);
             loadComponentSingleFile(stableImportManager, Add);
 
             loadComponentSingleFile(screenshotManager, Add);
@@ -755,6 +758,7 @@ namespace osu.Game
 
             chatOverlay.State.ValueChanged += state => channelManager.HighPollRate.Value = state.NewValue == Visibility.Visible;
 
+            Add(difficultyRecommender);
             Add(externalLinkOpener = new ExternalLinkOpener());
             Add(new MusicKeyBindingHandler());
 

osu.Game/Overlays/BeatmapListing/BeatmapListingSearchControl.cs

@@ -14,6 +14,7 @@ using osu.Game.Beatmaps;
 using osu.Game.Configuration;
 using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.UserInterface;
+using osu.Game.Resources.Localisation.Web;
 using osuTK.Graphics;
 using osu.Game.Rulesets;
 using osu.Game.Scoring;
@@ -126,15 +127,15 @@ namespace osu.Game.Overlays.BeatmapListing
                                 Padding = new MarginPadding { Horizontal = 10 },
                                 Children = new Drawable[]
                                 {
-                                    generalFilter = new BeatmapSearchMultipleSelectionFilterRow<SearchGeneral>(@"General"),
+                                    generalFilter = new BeatmapSearchMultipleSelectionFilterRow<SearchGeneral>(BeatmapsStrings.ListingSearchFiltersGeneral),
                                     modeFilter = new BeatmapSearchRulesetFilterRow(),
-                                    categoryFilter = new BeatmapSearchFilterRow<SearchCategory>(@"Categories"),
-                                    genreFilter = new BeatmapSearchFilterRow<SearchGenre>(@"Genre"),
-                                    languageFilter = new BeatmapSearchFilterRow<SearchLanguage>(@"Language"),
-                                    extraFilter = new BeatmapSearchMultipleSelectionFilterRow<SearchExtra>(@"Extra"),
+                                    categoryFilter = new BeatmapSearchFilterRow<SearchCategory>(BeatmapsStrings.ListingSearchFiltersStatus),
+                                    genreFilter = new BeatmapSearchFilterRow<SearchGenre>(BeatmapsStrings.ListingSearchFiltersGenre),
+                                    languageFilter = new BeatmapSearchFilterRow<SearchLanguage>(BeatmapsStrings.ListingSearchFiltersLanguage),
+                                    extraFilter = new BeatmapSearchMultipleSelectionFilterRow<SearchExtra>(BeatmapsStrings.ListingSearchFiltersExtra),
                                     ranksFilter = new BeatmapSearchScoreFilterRow(),
-                                    playedFilter = new BeatmapSearchFilterRow<SearchPlayed>(@"Played"),
-                                    explicitContentFilter = new BeatmapSearchFilterRow<SearchExplicit>(@"Explicit Content"),
+                                    playedFilter = new BeatmapSearchFilterRow<SearchPlayed>(BeatmapsStrings.ListingSearchFiltersPlayed),
+                                    explicitContentFilter = new BeatmapSearchFilterRow<SearchExplicit>(BeatmapsStrings.ListingSearchFiltersNsfw),
                                 }
                             }
                         }
@@ -172,7 +173,7 @@ namespace osu.Game.Overlays.BeatmapListing
 
             public BeatmapSearchTextBox()
             {
-                PlaceholderText = @"type in keywords...";
+                PlaceholderText = BeatmapsStrings.ListingSearchPrompt;
             }
 
             protected override bool OnKeyDown(KeyDownEvent e)

osu.Game/Overlays/BeatmapListing/BeatmapSearchFilterRow.cs

@@ -11,8 +11,8 @@ using osu.Game.Graphics;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Graphics.UserInterface;
 using osuTK;
-using Humanizer;
 using osu.Framework.Extensions.EnumExtensions;
+using osu.Framework.Localisation;
 
 namespace osu.Game.Overlays.BeatmapListing
 {
@@ -26,7 +26,7 @@ namespace osu.Game.Overlays.BeatmapListing
             set => current.Current = value;
         }
 
-        public BeatmapSearchFilterRow(string headerName)
+        public BeatmapSearchFilterRow(LocalisableString header)
         {
             Drawable filter;
             AutoSizeAxes = Axes.Y;
@@ -53,7 +53,7 @@ namespace osu.Game.Overlays.BeatmapListing
                             Anchor = Anchor.BottomLeft,
                             Origin = Anchor.BottomLeft,
                             Font = OsuFont.GetFont(size: 13),
-                            Text = headerName.Titleize()
+                            Text = header
                         },
                         filter = CreateFilter()
                     }

osu.Game/Overlays/BeatmapListing/BeatmapSearchMultipleSelectionFilterRow.cs

@@ -9,6 +9,7 @@ using osu.Framework.Bindables;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Input.Events;
+using osu.Framework.Localisation;
 using osuTK;
 
 namespace osu.Game.Overlays.BeatmapListing
@@ -19,8 +20,8 @@ namespace osu.Game.Overlays.BeatmapListing
 
         private MultipleSelectionFilter filter;
 
-        public BeatmapSearchMultipleSelectionFilterRow(string headerName)
-            : base(headerName)
+        public BeatmapSearchMultipleSelectionFilterRow(LocalisableString header)
+            : base(header)
         {
             Current.BindTo(filter.Current);
         }

osu.Game/Overlays/BeatmapListing/BeatmapSearchRulesetFilterRow.cs

@@ -3,6 +3,7 @@
 
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
+using osu.Game.Resources.Localisation.Web;
 using osu.Game.Rulesets;
 
 namespace osu.Game.Overlays.BeatmapListing
@@ -10,7 +11,7 @@ namespace osu.Game.Overlays.BeatmapListing
     public class BeatmapSearchRulesetFilterRow : BeatmapSearchFilterRow<RulesetInfo>
     {
         public BeatmapSearchRulesetFilterRow()
-            : base(@"Mode")
+            : base(BeatmapsStrings.ListingSearchFiltersMode)
         {
         }
 

osu.Game/Overlays/BeatmapListing/BeatmapSearchScoreFilterRow.cs

@@ -1,9 +1,11 @@
 // 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.Extensions;
+using osu.Framework.Localisation;
+using osu.Game.Resources.Localisation.Web;
 using osu.Game.Scoring;
 
 namespace osu.Game.Overlays.BeatmapListing
@@ -11,7 +13,7 @@ namespace osu.Game.Overlays.BeatmapListing
     public class BeatmapSearchScoreFilterRow : BeatmapSearchMultipleSelectionFilterRow<ScoreRank>
     {
         public BeatmapSearchScoreFilterRow()
-            : base(@"Rank Achieved")
+            : base(BeatmapsStrings.ListingSearchFiltersRank)
         {
         }
 
@@ -31,18 +33,36 @@ namespace osu.Game.Overlays.BeatmapListing
             {
             }
 
-            protected override string LabelFor(ScoreRank value)
+            protected override LocalisableString LabelFor(ScoreRank value)
             {
                 switch (value)
                 {
                     case ScoreRank.XH:
-                        return @"Silver SS";
+                        return BeatmapsStrings.RankXH;
+
+                    case ScoreRank.X:
+                        return BeatmapsStrings.RankX;
 
                     case ScoreRank.SH:
-                        return @"Silver S";
+                        return BeatmapsStrings.RankSH;
+
+                    case ScoreRank.S:
+                        return BeatmapsStrings.RankS;
+
+                    case ScoreRank.A:
+                        return BeatmapsStrings.RankA;
+
+                    case ScoreRank.B:
+                        return BeatmapsStrings.RankB;
+
+                    case ScoreRank.C:
+                        return BeatmapsStrings.RankC;
+
+                    case ScoreRank.D:
+                        return BeatmapsStrings.RankD;
 
                     default:
-                        return value.GetDescription();
+                        throw new ArgumentException("Unsupported value.", nameof(value));
                 }
             }
         }

osu.Game/Overlays/BeatmapListing/FilterTabItem.cs

@@ -7,6 +7,7 @@ using osu.Framework.Extensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.UserInterface;
 using osu.Framework.Input.Events;
+using osu.Framework.Localisation;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Graphics.UserInterface;
@@ -66,7 +67,7 @@ namespace osu.Game.Overlays.BeatmapListing
         /// <summary>
         /// Returns the label text to be used for the supplied <paramref name="value"/>.
         /// </summary>
-        protected virtual string LabelFor(T value) => (value as Enum)?.GetDescription() ?? value.ToString();
+        protected virtual LocalisableString LabelFor(T value) => (value as Enum)?.GetDescription() ?? value.ToString();
 
         private void updateState()
         {

osu.Game/Overlays/BeatmapListingOverlay.cs

@@ -18,6 +18,7 @@ using osu.Game.Beatmaps;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Overlays.BeatmapListing;
 using osu.Game.Overlays.BeatmapListing.Panels;
+using osu.Game.Resources.Localisation.Web;
 using osuTK;
 using osuTK.Graphics;
 
@@ -232,7 +233,7 @@ namespace osu.Game.Overlays
                         {
                             Anchor = Anchor.Centre,
                             Origin = Anchor.Centre,
-                            Text = @"... nope, nothing found.",
+                            Text = BeatmapsStrings.ListingSearchNotFoundQuote,
                         }
                     }
                 });

osu.Game/Overlays/OverlaySortTabControl.cs

@@ -18,6 +18,7 @@ using JetBrains.Annotations;
 using System;
 using osu.Framework.Extensions;
 using osu.Framework.Localisation;
+using osu.Game.Resources.Localisation.Web;
 
 namespace osu.Game.Overlays
 {
@@ -54,7 +55,7 @@ namespace osu.Game.Overlays
                         Anchor = Anchor.CentreLeft,
                         Origin = Anchor.CentreLeft,
                         Font = OsuFont.GetFont(size: 12, weight: FontWeight.SemiBold),
-                        Text = @"Sort by"
+                        Text = SortStrings.Default
                     },
                     CreateControl().With(c =>
                     {

osu.Game/Overlays/Settings/Sections/General/LanguageSettings.cs

@@ -1,11 +1,11 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-using System;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;
 using osu.Framework.Configuration;
 using osu.Framework.Graphics;
+using osu.Game.Extensions;
 using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.Settings.Sections.General
@@ -35,11 +35,11 @@ namespace osu.Game.Overlays.Settings.Sections.General
                 },
             };
 
-            if (!Enum.TryParse<Language>(frameworkLocale.Value, out var locale))
+            if (!LanguageExtensions.TryParseCultureCode(frameworkLocale.Value, out var locale))
                 locale = Language.en;
             languageSelection.Current.Value = locale;
 
-            languageSelection.Current.BindValueChanged(val => frameworkLocale.Value = val.NewValue.ToString());
+            languageSelection.Current.BindValueChanged(val => frameworkLocale.Value = val.NewValue.ToCultureCode());
         }
     }
 }

osu.Game/Overlays/Settings/SettingsEnumDropdown.cs

@@ -19,6 +19,8 @@ namespace osu.Game.Overlays.Settings
                 Margin = new MarginPadding { Top = 5 };
                 RelativeSizeAxes = Axes.X;
             }
+
+            protected override DropdownMenu CreateMenu() => base.CreateMenu().With(m => m.MaxHeight = 200);
         }
     }
 }

osu.Game/Overlays/Settings/SettingsNumberBox.cs

@@ -2,16 +2,20 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using osu.Framework.Graphics;
-using osu.Game.Graphics.UserInterface;
 
 namespace osu.Game.Overlays.Settings
 {
     public class SettingsNumberBox : SettingsItem<string>
     {
-        protected override Drawable CreateControl() => new OsuNumberBox
+        protected override Drawable CreateControl() => new NumberBox
         {
             Margin = new MarginPadding { Top = 5 },
             RelativeSizeAxes = Axes.X,
         };
+
+        public class NumberBox : SettingsTextBox.TextBox
+        {
+            protected override bool CanAddCharacter(char character) => char.IsNumber(character);
+        }
     }
 }

osu.Game/Overlays/Settings/SettingsTextBox.cs

@@ -1,18 +1,60 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using osu.Framework.Allocation;
+using osu.Framework.Extensions.Color4Extensions;
 using osu.Framework.Graphics;
+using osu.Framework.Input.Events;
+using osu.Game.Graphics;
 using osu.Game.Graphics.UserInterface;
+using osuTK.Graphics;
 
 namespace osu.Game.Overlays.Settings
 {
     public class SettingsTextBox : SettingsItem<string>
     {
-        protected override Drawable CreateControl() => new OsuTextBox
+        protected override Drawable CreateControl() => new TextBox
         {
             Margin = new MarginPadding { Top = 5 },
             RelativeSizeAxes = Axes.X,
             CommitOnFocusLost = true,
         };
+
+        public class TextBox : OsuTextBox
+        {
+            private const float border_thickness = 3;
+
+            private Color4 borderColourFocused;
+            private Color4 borderColourUnfocused;
+
+            [BackgroundDependencyLoader]
+            private void load(OsuColour colour)
+            {
+                borderColourUnfocused = colour.Gray4.Opacity(0.5f);
+                borderColourFocused = BorderColour;
+
+                updateBorder();
+            }
+
+            protected override void OnFocus(FocusEvent e)
+            {
+                base.OnFocus(e);
+
+                updateBorder();
+            }
+
+            protected override void OnFocusLost(FocusLostEvent e)
+            {
+                base.OnFocusLost(e);
+
+                updateBorder();
+            }
+
+            private void updateBorder()
+            {
+                BorderThickness = border_thickness;
+                BorderColour = HasFocus ? borderColourFocused : borderColourUnfocused;
+            }
+        }
     }
 }

osu.Game/Rulesets/Mods/ModRandom.cs

@@ -8,7 +8,6 @@ using osu.Framework.Graphics.Sprites;
 using osu.Framework.Graphics.UserInterface;
 using osu.Game.Configuration;
 using osu.Game.Graphics;
-using osu.Game.Graphics.UserInterface;
 using osu.Game.Overlays.Settings;
 
 namespace osu.Game.Rulesets.Mods
@@ -50,7 +49,7 @@ namespace osu.Game.Rulesets.Mods
                     }
                 }
 
-                private readonly OsuNumberBox seedNumberBox;
+                private readonly SettingsNumberBox.NumberBox seedNumberBox;
 
                 public SeedControl()
                 {
@@ -76,7 +75,7 @@ namespace osu.Game.Rulesets.Mods
                             {
                                 new Drawable[]
                                 {
-                                    seedNumberBox = new OsuNumberBox
+                                    seedNumberBox = new SettingsNumberBox.NumberBox
                                     {
                                         RelativeSizeAxes = Axes.X,
                                         CommitOnFocusLost = true

osu.Game/Tests/Visual/OsuTestScene.cs

@@ -350,7 +350,7 @@ namespace osu.Game.Tests.Visual
                     if (CurrentTime >= Length)
                     {
                         Stop();
-                        RaiseCompleted();
+                        // `RaiseCompleted` is not called here to prevent transitioning to the next song.
                     }
                 }
             }

osu.Game/osu.Game.csproj

@@ -35,7 +35,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="ppy.osu.Framework" Version="2021.614.0" />
-    <PackageReference Include="ppy.osu.Game.Resources" Version="2021.611.0" />
+    <PackageReference Include="ppy.osu.Game.Resources" Version="2021.614.0" />
     <PackageReference Include="Sentry" Version="3.4.0" />
     <PackageReference Include="SharpCompress" Version="0.28.2" />
     <PackageReference Include="NUnit" Version="3.13.2" />

osu.iOS.props

@@ -71,7 +71,7 @@
   </ItemGroup>
   <ItemGroup Label="Package References">
     <PackageReference Include="ppy.osu.Framework.iOS" Version="2021.614.0" />
-    <PackageReference Include="ppy.osu.Game.Resources" Version="2021.611.0" />
+    <PackageReference Include="ppy.osu.Game.Resources" Version="2021.614.0" />
   </ItemGroup>
   <!-- See https://github.com/dotnet/runtime/issues/35988 (can be removed after Xamarin uses net5.0 / net6.0) -->
   <PropertyGroup>