Merge pull request #1325 from peppy/no-more-dynamic

Remove single usage of dynamic and stop referencing Microsoft.CSharp.dll

.vscode/launch.json

@@ -1,36 +1,49 @@
 {
     "version": "0.2.0",
-    "configurations": [
-        {
-            "name": "Launch VisualTests",
+    "configurations": [{
+            "name": "osu! (VisualTests)",
+            "windows": {
+                "type": "clr"
+            },
             "type": "mono",
             "request": "launch",
-            "program": "${workspaceRoot}/osu.Desktop.VisualTests/bin/Debug/osu!.exe",
-            "args": [],
+            "program": "${workspaceRoot}/osu.Game/bin/Debug/osu!.exe",
+            "args": [
+                "--tests"
+            ],
             "cwd": "${workspaceRoot}",
-            "preLaunchTask": "build",
+            "preLaunchTask": "Build (Debug)",
             "runtimeExecutable": null,
             "env": {},
-            "externalConsole": false
+            "console": "internalConsole"
         },
         {
-            "name": "Launch Desktop",
+            "name": "osu! (debug)",
+            "windows": {
+                "type": "clr"
+            },
             "type": "mono",
             "request": "launch",
-            "program": "${workspaceRoot}/osu.Desktop/bin/Debug/osu!.exe",
-            "args": [],
+            "program": "${workspaceRoot}/osu.Game/bin/Debug/osu!.exe",
             "cwd": "${workspaceRoot}",
-            "preLaunchTask": "build",
+            "preLaunchTask": "Build (Debug)",
             "runtimeExecutable": null,
             "env": {},
-            "externalConsole": false
+            "console": "internalConsole"
         },
         {
-            "name": "Attach",
+            "name": "osu! (release)",
+            "windows": {
+                "type": "clr"
+            },
             "type": "mono",
-            "request": "attach",
-            "address": "localhost",
-            "port": 55555
+            "request": "launch",
+            "program": "${workspaceRoot}/osu.Game/bin/Release/osu!.exe",
+            "cwd": "${workspaceRoot}",
+            "preLaunchTask": "Build (Release)",
+            "runtimeExecutable": null,
+            "env": {},
+            "console": "internalConsole"
         }
     ]
 }

.vscode/tasks.json

@@ -1,26 +1,63 @@
 {
     // See https://go.microsoft.com/fwlink/?LinkId=733558
     // for the documentation about the tasks.json format
-    "version": "0.1.0",
-    "windows": {
-        "command": "msbuild"
-    },
-    "linux": {
-        "command": "xbuild"
-    },
+    "version": "2.0.0",
+    "command": "msbuild",
+    "type": "shell",
+    "suppressTaskName": true,
     "args": [
-        // Ask msbuild to generate full paths for file names.
-        "/property:GenerateFullPaths=true"
+        "/property:GenerateFullPaths=true",
+        "/property:DebugType=portable",
+        "/verbosity:minimal",
+        "/m" //parallel compiling support.
     ],
-    "taskSelector": "/t:",
-    "showOutput": "silent",
-    "tasks": [
+    "tasks": [{
+            "taskName": "Build (Debug)",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "problemMatcher": [
+                "$msCompile"
+            ]
+        },
         {
-            "taskName": "build",
-            // Show the output window only if unrecognized errors occur.
-            "showOutput": "silent",
-            // Use the standard MS compiler pattern to detect errors, warnings and infos
-            "problemMatcher": "$msCompile"
+            "taskName": "Build (Release)",
+            "args": [
+                "/property:Configuration=Release"
+            ],
+            "problemMatcher": [
+                "$msCompile"
+            ]
+        },
+        {
+            "taskName": "Clean (Debug)",
+            "args": [
+                "/target:Clean"
+            ],
+            "problemMatcher": [
+                "$msCompile"
+            ]
+        },
+        {
+            "taskName": "Clean (Release)",
+            "args": [
+                "/target:Clean",
+                "/property:Configuration=Release"
+            ],
+            "problemMatcher": [
+                "$msCompile"
+            ]
+        },
+        {
+            "taskName": "Clean All",
+            "dependsOn": [
+                "Clean (Debug)",
+                "Clean (Release)"
+            ],
+            "problemMatcher": [
+                "$msCompile"
+            ]
         }
     ]
 }

NuGet.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <add key="opentk-develop" value="https://www.myget.org/F/opentk-develop" />
+  </packageSources>
+</configuration>

README.md

@@ -1,10 +1,6 @@
-# osu! [![Build status](https://ci.appveyor.com/api/projects/status/u2p01nx7l6og8buh?svg=true)](https://ci.appveyor.com/project/peppy/osu)
+# osu! [![Build status](https://ci.appveyor.com/api/projects/status/u2p01nx7l6og8buh?svg=true)](https://ci.appveyor.com/project/peppy/osu)  [![CodeFactor](https://www.codefactor.io/repository/github/ppy/osu/badge)](https://www.codefactor.io/repository/github/ppy/osu) [![dev chat](https://discordapp.com/api/guilds/188630481301012481/widget.png?style=shield)](https://discord.gg/ppy)
 
-
-
-[osu! on the web](https://osu.ppy.sh) | [dev chat](https://discord.gg/ppy)
-
-Rhythm is just a *click* away. The future of osu! and the beginning of an open era!
+Rhythm is just a *click* away. The future of [osu!](https://osu.ppy.sh) and the beginning of an open era!
 
 # Status
 
@@ -12,14 +8,14 @@ This is still heavily under development and is not intended for end-user use. Th
 
 # Requirements
 
-- A desktop platform which can compile .NET 4.5.
-- Visual Studio or MonoDevelop is recommended.
+- A desktop platform which can compile .NET 4.5 (tested on macOS, linux and windows). We recommend using [Visual Studio Code](https://code.visualstudio.com/) (all platforms) or [Visual Studio Community Edition](https://www.visualstudio.com/) (windows only), both of which are free.
+- Make sure you initialise and keep submodules up-to-date.
 
 # Contributing
 
 We welcome all contributions, but keep in mind that we already have a lot of the UI designed. If you wish to work on something with the intention on having it included in the official distribution, please open an issue for discussion and we will give you what you need from a design perspective to proceed. If you want to make *changes* to the design, we recommend you open an issue with your intentions before spending too much time, to ensure no effort is wasted.
 
-Contributions can be made via pull requests to this repository. We hope to credit and reward larger contributions via a [bounty system](https://goo.gl/nFdoyI). If you're unsure of what you can help with, check out the [list](https://github.com/ppy/osu/issues?utf8=%E2%9C%93&q=is%3Aissue+is%3Aopen+label%3Abounty) of available issues with bounty.
+Contributions can be made via pull requests to this repository. We hope to credit and reward larger contributions via a [bounty system](https://www.bountysource.com/teams/ppy). If you're unsure of what you can help with, check out the [list of open issues](https://github.com/ppy/osu-framework/issues).
 
 Note that while we already have certain standards in place, nothing is set in stone. If you have an issue with the way code is structured; with any libraries we are using; with any processes involved with contributing, *please* bring it up. I welcome all feedback so we can make contributing to this project as pain-free as possible.
 

appveyor.yml

@@ -1,3 +1,4 @@
+# 2017-09-14
 clone_depth: 1
 version: '{branch}-{build}'
 configuration: Debug
@@ -10,7 +11,7 @@ install:
   - cmd: git submodule update --init --recursive
   - cmd: choco install resharper-clt -y
   - cmd: choco install nvika -y
-  - cmd: appveyor DownloadFile https://github.com/peppy/CodeFileSanity/releases/download/v0.1/CodeFileSanity.exe
+  - cmd: appveyor DownloadFile https://github.com/peppy/CodeFileSanity/releases/download/v0.2.2/CodeFileSanity.exe
 before_build:
   - cmd: CodeFileSanity.exe
   - cmd: nuget restore
@@ -20,4 +21,4 @@ build:
   verbosity: minimal
 after_build:
   - cmd: inspectcode /o="inspectcodereport.xml" /caches-home="inspectcode" osu.sln
-  - cmd: NVika parsereport "inspectcodereport.xml"
+  - cmd: NVika parsereport "inspectcodereport.xml" --treatwarningsaserrors

osu.Desktop.Deploy/App.config

@@ -21,4 +21,20 @@ Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/maste
   <startup>
     <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
   </startup>
+  <runtime>
+    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
+      <dependentAssembly>
+        <assemblyIdentity name="DeltaCompressionDotNet.MsDelta" publicKeyToken="46b2138a390abf55" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-1.1.0.0" newVersion="1.1.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-10.0.0.0" newVersion="10.0.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="SharpCompress" publicKeyToken="afb0a02973931d96" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-0.18.1.0" newVersion="0.18.1.0" />
+      </dependentAssembly>
+    </assemblyBinding>
+  </runtime>
 </configuration>

osu.Desktop.Deploy/Program.cs

@@ -17,8 +17,8 @@ namespace osu.Desktop.Deploy
 {
     internal static class Program
     {
-        private const string nuget_path = @"packages\NuGet.CommandLine.3.5.0\tools\NuGet.exe";
-        private const string squirrel_path = @"packages\squirrel.windows.1.5.2\tools\Squirrel.exe";
+        private const string nuget_path = @"packages\NuGet.CommandLine.4.3.0\tools\NuGet.exe";
+        private const string squirrel_path = @"packages\squirrel.windows.1.7.8\tools\Squirrel.exe";
         private const string msbuild_path = @"C:\Program Files (x86)\MSBuild\14.0\Bin\MSBuild.exe";
 
         public static string StagingFolder = ConfigurationManager.AppSettings["StagingFolder"];
@@ -29,7 +29,7 @@ namespace osu.Desktop.Deploy
         public static string SolutionName = ConfigurationManager.AppSettings["SolutionName"];
         public static string ProjectName = ConfigurationManager.AppSettings["ProjectName"];
         public static string NuSpecName = ConfigurationManager.AppSettings["NuSpecName"];
-        public static string TargetName = ConfigurationManager.AppSettings["TargetName"];
+        public static string TargetNames = ConfigurationManager.AppSettings["TargetName"];
         public static string PackageName = ConfigurationManager.AppSettings["PackageName"];
         public static string IconName = ConfigurationManager.AppSettings["IconName"];
         public static string CodeSigningCertificate = ConfigurationManager.AppSettings["CodeSigningCertificate"];
@@ -53,7 +53,7 @@ namespace osu.Desktop.Deploy
         private static string nupkgFilename(string ver) => $"{PackageName}.{ver}.nupkg";
         private static string nupkgDistroFilename(string ver) => $"{PackageName}-{ver}-full.nupkg";
 
-        private static Stopwatch sw = new Stopwatch();
+        private static readonly Stopwatch sw = new Stopwatch();
 
         private static string codeSigningPassword;
 
@@ -100,7 +100,8 @@ namespace osu.Desktop.Deploy
             updateAssemblyInfo(version);
 
             write("Running build process...");
-            runCommand(msbuild_path, $"/v:quiet /m /t:{TargetName.Replace('.', '_')} /p:OutputPath={stagingPath};Configuration=Release {SolutionName}.sln");
+            foreach (string targetName in TargetNames.Split(','))
+                runCommand(msbuild_path, $"/v:quiet /m /t:{targetName.Replace('.', '_')} /p:OutputPath={stagingPath};Targets=\"Clean;Build\";Configuration=Release {SolutionName}.sln");
 
             write("Creating NuGet deployment package...");
             runCommand(nuget_path, $"pack {NuSpecName} -Version {version} -Properties Configuration=Deploy -OutputDirectory {stagingPath} -BasePath {stagingPath}");

osu.Desktop.Deploy/Properties/AssemblyInfo.cs

@@ -4,7 +4,7 @@
 using System.Reflection;
 using System.Runtime.InteropServices;
 
-// General Information about an assembly is controlled through the following 
+// General Information about an assembly is controlled through the following
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyTitle("osu.Desktop.Deploy")]
@@ -16,8 +16,8 @@ using System.Runtime.InteropServices;
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
-// Setting ComVisible to false makes the types in this assembly not visible 
-// to COM components.  If you need to access a type in this assembly from 
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
 // COM, set the ComVisible attribute to true on that type.
 [assembly: ComVisible(false)]
 
@@ -27,11 +27,11 @@ using System.Runtime.InteropServices;
 // Version information for an assembly consists of the following four values:
 //
 //      Major Version
-//      Minor Version 
+//      Minor Version
 //      Build Number
 //      Revision
 //
-// You can specify all the values or you can default the Build and Revision Numbers 
+// You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
 [assembly: AssemblyVersion("1.0.0.0")]

osu.Desktop.Deploy/osu.Desktop.Deploy.csproj

@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>osu.Desktop.Deploy</RootNamespace>
     <AssemblyName>osu.Desktop.Deploy</AssemblyName>
-    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
   </PropertyGroup>
@@ -22,6 +22,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <LangVersion>6</LangVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>
@@ -48,10 +49,6 @@
       <HintPath>$(SolutionDir)\packages\DeltaCompressionDotNet.1.1.0\lib\net20\DeltaCompressionDotNet.PatchApi.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="ICSharpCode.SharpZipLib, Version=0.86.0.518, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\squirrel.windows.1.5.2\lib\Net45\ICSharpCode.SharpZipLib.dll</HintPath>
-      <Private>True</Private>
-    </Reference>
     <Reference Include="Mono.Cecil, Version=0.9.6.0, Culture=neutral, PublicKeyToken=0738eb9f132ed756, processorArchitecture=MSIL">
       <HintPath>$(SolutionDir)\packages\Mono.Cecil.0.9.6.4\lib\net45\Mono.Cecil.dll</HintPath>
       <Private>True</Private>
@@ -68,20 +65,24 @@
       <HintPath>$(SolutionDir)\packages\Mono.Cecil.0.9.6.4\lib\net45\Mono.Cecil.Rocks.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="Newtonsoft.Json, Version=9.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\Newtonsoft.Json.9.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
+    <Reference Include="Newtonsoft.Json, Version=10.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+      <HintPath>$(SolutionDir)\packages\Newtonsoft.Json.10.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="NuGet.Squirrel, Version=3.0.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\squirrel.windows.1.5.2\lib\Net45\NuGet.Squirrel.dll</HintPath>
+      <HintPath>$(SolutionDir)\packages\squirrel.windows.1.7.8\lib\Net45\NuGet.Squirrel.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="SharpCompress, Version=0.18.1.0, Culture=neutral, PublicKeyToken=afb0a02973931d96, processorArchitecture=MSIL">
+      <HintPath>$(SolutionDir)\packages\SharpCompress.0.18.1\lib\net45\SharpCompress.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="Splat, Version=2.0.0.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>$(SolutionDir)\packages\Splat.2.0.0\lib\Net45\Splat.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="Squirrel, Version=1.5.2.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\squirrel.windows.1.5.2\lib\Net45\Squirrel.dll</HintPath>
+    <Reference Include="Squirrel, Version=1.7.8.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>$(SolutionDir)\packages\squirrel.windows.1.7.8\lib\Net45\Squirrel.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />
@@ -110,17 +111,13 @@
     <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\osu-framework\osu.Framework.Desktop\osu.Framework.Desktop.csproj">
-      <Project>{65dc628f-a640-4111-ab35-3a5652bc1e17}</Project>
-      <Name>osu.Framework.Desktop</Name>
-    </ProjectReference>
     <ProjectReference Include="..\osu-framework\osu.Framework\osu.Framework.csproj">
       <Project>{C76BF5B3-985E-4D39-95FE-97C9C879B83A}</Project>
       <Name>osu.Framework</Name>
     </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
        Other similar extension points exist, see Microsoft.Common.targets.
   <Target Name="BeforeBuild">
   </Target>

osu.Desktop.Deploy/packages.config

@@ -6,8 +6,9 @@ Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/maste
 <packages>
   <package id="DeltaCompressionDotNet" version="1.1.0" targetFramework="net452" />
   <package id="Mono.Cecil" version="0.9.6.4" targetFramework="net452" />
-  <package id="Newtonsoft.Json" version="9.0.1" targetFramework="net452" />
-  <package id="NuGet.CommandLine" version="3.5.0" targetFramework="net452" developmentDependency="true" />
+  <package id="Newtonsoft.Json" version="10.0.3" targetFramework="net461" />
+  <package id="NuGet.CommandLine" version="4.3.0" targetFramework="net461" developmentDependency="true" />
+  <package id="SharpCompress" version="0.18.1" targetFramework="net461" />
   <package id="Splat" version="2.0.0" targetFramework="net452" />
-  <package id="squirrel.windows" version="1.5.2" targetFramework="net452" />
+  <package id="squirrel.windows" version="1.7.8" targetFramework="net461" />
 </packages>

osu.Desktop.Tests/BenchmarkTest.cs

@@ -1,32 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using NUnit.Framework;
-using osu.Desktop.VisualTests;
-using osu.Framework.Desktop.Platform;
-using osu.Game.Modes;
-using osu.Game.Modes.Catch;
-using osu.Game.Modes.Mania;
-using osu.Game.Modes.Osu;
-using osu.Game.Modes.Taiko;
-
-namespace osu.Desktop.Tests
-{
-    [TestFixture]
-    public class BenchmarkTest
-    {
-        [Test]
-        public void TestBenchmark()
-        {
-            using (var host = new HeadlessGameHost())
-            {
-                Ruleset.Register(new OsuRuleset());
-                Ruleset.Register(new TaikoRuleset());
-                Ruleset.Register(new ManiaRuleset());
-                Ruleset.Register(new CatchRuleset());
-
-                host.Run(new Benchmark());
-            }
-        }
-    }
-}

osu.Desktop.Tests/osu.Desktop.Tests.csproj

@@ -1,116 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
-  <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <ProjectGuid>{230AC4F3-7783-49FB-9AEC-B83CDA3B9F3D}</ProjectGuid>
-    <OutputType>Library</OutputType>
-    <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>osu.Desktop.Tests</RootNamespace>
-    <AssemblyName>osu.Desktop.Tests</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
-    <FileAlignment>512</FileAlignment>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
-  </PropertyGroup>
-  <ItemGroup>
-    <Reference Include="mscorlib" />
-    <Reference Include="nunit.framework, Version=3.5.0.0, Culture=neutral, PublicKeyToken=2638cd05610744eb, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\NUnit.3.5.0\lib\net45\nunit.framework.dll</HintPath>
-      <Private>True</Private>
-    </Reference>
-    <Reference Include="SQLite.Net, Version=3.1.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>$(SolutionDir)\packages\SQLite.Net.Core-PCL.3.1.1\lib\portable-win8+net45+wp8+wpa81+MonoAndroid1+MonoTouch1\SQLite.Net.dll</HintPath>
-    </Reference>
-    <Reference Include="System" />
-    <Reference Include="Newtonsoft.Json">
-      <HintPath>$(SolutionDir)\packages\Newtonsoft.Json.9.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
-    </Reference>
-    <Reference Include="SQLiteNetExtensions">
-      <HintPath>$(SolutionDir)\packages\SQLiteNetExtensions.1.3.0\lib\portable-net45+netcore45+wpa81+wp8+MonoAndroid1+MonoTouch1\SQLiteNetExtensions.dll</HintPath>
-    </Reference>
-    <Reference Include="SQLite.Net.Platform.Win32">
-      <HintPath>$(SolutionDir)\packages\SQLite.Net-PCL.3.1.1\lib\net4\SQLite.Net.Platform.Win32.dll</HintPath>
-    </Reference>
-    <Reference Include="SQLite.Net.Platform.Generic">
-      <HintPath>$(SolutionDir)\packages\SQLite.Net-PCL.3.1.1\lib\net40\SQLite.Net.Platform.Generic.dll</HintPath>
-    </Reference>
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="BenchmarkTest.cs" />
-  </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\osu-framework\osu.Framework.Desktop\osu.Framework.Desktop.csproj">
-      <Project>{65DC628F-A640-4111-AB35-3A5652BC1E17}</Project>
-      <Name>osu.Framework.Desktop</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu-framework\osu.Framework\osu.Framework.csproj">
-      <Project>{C76BF5B3-985E-4D39-95FE-97C9C879B83A}</Project>
-      <Name>osu.Framework</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu-resources\osu.Game.Resources\osu.Game.Resources.csproj">
-      <Project>{d9a367c9-4c1a-489f-9b05-a0cea2b53b58}</Project>
-      <Name>osu.Game.Resources</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Desktop.VisualTests\osu.Desktop.VisualTests.csproj">
-      <Project>{69051C69-12AE-4E7D-A3E6-460D2E282312}</Project>
-      <Name>osu.Desktop.VisualTests</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game.Modes.Catch\osu.Game.Modes.Catch.csproj">
-      <Project>{58F6C80C-1253-4A0E-A465-B8C85EBEADF3}</Project>
-      <Name>osu.Game.Modes.Catch</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game.Modes.Mania\osu.Game.Modes.Mania.csproj">
-      <Project>{48F4582B-7687-4621-9CBE-5C24197CB536}</Project>
-      <Name>osu.Game.Modes.Mania</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game.Modes.Osu\osu.Game.Modes.Osu.csproj">
-      <Project>{C92A607B-1FDD-4954-9F92-03FF547D9080}</Project>
-      <Name>osu.Game.Modes.Osu</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game.Modes.Taiko\osu.Game.Modes.Taiko.csproj">
-      <Project>{F167E17A-7DE6-4AF5-B920-A5112296C695}</Project>
-      <Name>osu.Game.Modes.Taiko</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game\osu.Game.csproj">
-      <Project>{0D3FBF8A-7464-4CF7-8C90-3E7886DF2D4D}</Project>
-      <Name>osu.Game</Name>
-    </ProjectReference>
-  </ItemGroup>
-  <ItemGroup>
-    <None Include="..\osu.licenseheader">
-      <Link>osu.licenseheader</Link>
-    </None>
-    <None Include="packages.config" />
-  </ItemGroup>
-  <ItemGroup>
-    <Folder Include="Properties\" />
-  </ItemGroup>
-  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
-       Other similar extension points exist, see Microsoft.Common.targets.
-  <Target Name="BeforeBuild">
-  </Target>
-  <Target Name="AfterBuild">
-  </Target>
-  -->
-</Project>

osu.Desktop.Tests/packages.config

@@ -1,13 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<!--
-Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
--->
-<packages>
-  <package id="Newtonsoft.Json" version="9.0.1" targetFramework="net45" />
-  <package id="NUnit" version="3.5.0" targetFramework="net45" />
-  <package id="SQLite.Net.Core-PCL" version="3.1.1" targetFramework="net45" />
-  <package id="SQLite.Net-PCL" version="3.1.1" targetFramework="net45" />
-  <package id="SQLiteNetExtensions" version="1.3.0" targetFramework="net45" />
-</packages>

osu.Desktop.VisualTests/Benchmark.cs

@@ -1,45 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using System;
-using osu.Framework.Allocation;
-using osu.Framework.Screens.Testing;
-using osu.Game;
-
-namespace osu.Desktop.VisualTests
-{
-    public class Benchmark : OsuGameBase
-    {
-        private double timePerTest = 200;
-
-        [BackgroundDependencyLoader]
-        private void load()
-        {
-            Host.MaximumDrawHz = int.MaxValue;
-            Host.MaximumUpdateHz = int.MaxValue;
-            Host.MaximumInactiveHz = int.MaxValue;
-        }
-
-        protected override void LoadComplete()
-        {
-            base.LoadComplete();
-
-            TestBrowser f = new TestBrowser();
-            Add(f);
-
-            Console.WriteLine($@"{Time}: Running {f.TestCount} tests for {timePerTest}ms each...");
-
-            for (int i = 1; i < f.TestCount; i++)
-            {
-                int loadableCase = i;
-                Scheduler.AddDelayed(delegate
-                {
-                    f.LoadTest(loadableCase);
-                    Console.WriteLine($@"{Time}: Switching to test #{loadableCase}");
-                }, loadableCase * timePerTest);
-            }
-
-            Scheduler.AddDelayed(Host.Exit, f.TestCount * timePerTest);
-        }
-    }
-}

osu.Desktop.VisualTests/Program.cs

@@ -1,36 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using System;
-using osu.Framework.Desktop;
-using osu.Framework.Platform;
-using osu.Game.Modes;
-using osu.Game.Modes.Catch;
-using osu.Game.Modes.Mania;
-using osu.Game.Modes.Osu;
-using osu.Game.Modes.Taiko;
-
-namespace osu.Desktop.VisualTests
-{
-    public static class Program
-    {
-        [STAThread]
-        public static void Main(string[] args)
-        {
-            bool benchmark = args.Length > 0 && args[0] == @"-benchmark";
-
-            using (GameHost host = Host.GetSuitableHost(@"osu"))
-            {
-                Ruleset.Register(new OsuRuleset());
-                Ruleset.Register(new TaikoRuleset());
-                Ruleset.Register(new ManiaRuleset());
-                Ruleset.Register(new CatchRuleset());
-
-                if (benchmark)
-                    host.Run(new Benchmark());
-                else
-                    host.Run(new VisualTestGame());
-            }
-        }
-    }
-}

osu.Desktop.VisualTests/Tests/TestCaseBeatmapOptionsOverlay.cs

@@ -1,24 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Framework.Screens.Testing;
-using osu.Game.Screens.Select.Options;
-
-namespace osu.Desktop.VisualTests.Tests
-{
-    internal class TestCaseBeatmapOptionsOverlay : TestCase
-    {
-        public override string Description => @"Beatmap options in song select";
-
-        public override void Reset()
-        {
-            base.Reset();
-
-            var overlay = new BeatmapOptionsOverlay();
-
-            Add(overlay);
-
-            AddButton(@"Toggle", overlay.ToggleVisibility);
-        }
-    }
-}

osu.Desktop.VisualTests/Tests/TestCaseKeyCounter.cs

@@ -1,90 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Framework.Screens.Testing;
-using osu.Framework.Graphics;
-using OpenTK.Input;
-using osu.Framework.Graphics.UserInterface;
-using osu.Framework.Configuration;
-using OpenTK;
-using OpenTK.Graphics;
-using osu.Framework.MathUtils;
-using osu.Framework.Graphics.Sprites;
-using osu.Framework.Graphics.Transforms;
-using osu.Game.Screens.Play;
-
-namespace osu.Desktop.VisualTests.Tests
-{
-    internal class TestCaseKeyCounter : TestCase
-    {
-        public override string Description => @"Tests key counter";
-
-        public override void Reset()
-        {
-            base.Reset();
-
-            KeyCounterCollection kc = new KeyCounterCollection
-            {
-                Origin = Anchor.Centre,
-                Anchor = Anchor.Centre,
-                IsCounting = true,
-                Children = new KeyCounter[]
-                {
-                    new KeyCounterKeyboard(Key.Z),
-                    new KeyCounterKeyboard(Key.X),
-                    new KeyCounterMouse(MouseButton.Left),
-                    new KeyCounterMouse(MouseButton.Right),
-                },
-            };
-            BindableInt bindable = new BindableInt { MinValue = 0, MaxValue = 200, Default = 50 };
-            bindable.ValueChanged += delegate { kc.FadeTime = bindable.Value; };
-            AddButton("Add Random", () =>
-            {
-                Key key = (Key)((int)Key.A + RNG.Next(26));
-                kc.Add(new KeyCounterKeyboard(key));
-            });
-            ButtonsContainer.Add(new SpriteText { Text = "FadeTime" });
-            ButtonsContainer.Add(new TestSliderBar<int>
-            {
-                Width = 150,
-                Height = 10,
-                SelectionColor = Color4.Orange,
-                Bindable = bindable
-            });
-            Add(kc);
-        }
-        private class TestSliderBar<T> : SliderBar<T> where T : struct
-        {
-            public Color4 Color
-            {
-                get { return Box.Colour; }
-                set { Box.Colour = value; }
-            }
-
-            public Color4 SelectionColor
-            {
-                get { return SelectionBox.Colour; }
-                set { SelectionBox.Colour = value; }
-            }
-
-            protected readonly Box SelectionBox;
-            protected readonly Box Box;
-
-            public TestSliderBar()
-            {
-                Children = new Drawable[]
-                {
-                    Box = new Box { RelativeSizeAxes = Axes.Both },
-                    SelectionBox = new Box { RelativeSizeAxes = Axes.Both }
-                };
-            }
-
-            protected override void UpdateValue(float value)
-            {
-                SelectionBox.ScaleTo(
-                    new Vector2(value, 1),
-                    300, EasingTypes.OutQuint);
-            }
-        }
-    }
-}

osu.Desktop.VisualTests/Tests/TestCaseModSelectOverlay.cs

@@ -1,35 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Framework.Graphics;
-using osu.Game.Overlays.Mods;
-using osu.Framework.Screens.Testing;
-using osu.Game.Modes;
-
-namespace osu.Desktop.VisualTests.Tests
-{
-    internal class TestCaseModSelectOverlay : TestCase
-    {
-        public override string Description => @"Tests the mod select overlay";
-
-        private ModSelectOverlay modSelect;
-
-        public override void Reset()
-        {
-            base.Reset();
-
-            Add(modSelect = new ModSelectOverlay
-            {
-                RelativeSizeAxes = Axes.X,
-                Origin = Anchor.BottomCentre,
-                Anchor = Anchor.BottomCentre,
-            });
-
-            AddButton("Toggle", modSelect.ToggleVisibility);
-            AddButton("osu!", () => modSelect.PlayMode.Value = PlayMode.Osu);
-            AddButton("osu!taiko", () => modSelect.PlayMode.Value = PlayMode.Taiko);
-            AddButton("osu!catch", () => modSelect.PlayMode.Value = PlayMode.Catch);
-            AddButton("osu!mania", () => modSelect.PlayMode.Value = PlayMode.Mania);
-        }
-    }
-}

osu.Desktop.VisualTests/Tests/TestCaseMusicController.cs

@@ -1,36 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Framework.Screens.Testing;
-using osu.Framework.Graphics;
-using osu.Framework.Timing;
-using osu.Game.Overlays;
-using osu.Framework.Graphics.Containers;
-
-namespace osu.Desktop.VisualTests.Tests
-{
-    internal class TestCaseMusicController : TestCase
-    {
-        public override string Description => @"Tests music controller ui.";
-
-        private MusicController mc;
-
-        public TestCaseMusicController()
-        {
-            Clock = new FramedClock();
-        }
-
-        public override void Reset()
-        {
-            base.Reset();
-            Clock.ProcessFrame();
-            mc = new MusicController
-            {
-                Origin = Anchor.Centre,
-                Anchor = Anchor.Centre
-            };
-            Add(mc);
-            AddToggle(@"Show", state => mc.State = state ? Visibility.Visible : Visibility.Hidden);
-        }
-    }
-}

osu.Desktop.VisualTests/Tests/TestCaseOptions.cs

@@ -1,23 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Framework.Screens.Testing;
-using osu.Game.Overlays;
-
-namespace osu.Desktop.VisualTests.Tests
-{
-    internal class TestCaseOptions : TestCase
-    {
-        public override string Description => @"Tests the options overlay";
-
-        private OptionsOverlay options;
-
-        public override void Reset()
-        {
-            base.Reset();
-
-            Children = new[] { options = new OptionsOverlay() };
-            options.ToggleVisibility();
-        }
-    }
-}

osu.Desktop.VisualTests/Tests/TestCasePauseOverlay.cs

@@ -1,38 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Framework.Logging;
-using osu.Framework.Screens.Testing;
-using osu.Game.Screens.Play;
-
-namespace osu.Desktop.VisualTests.Tests
-{
-    internal class TestCasePauseOverlay : TestCase
-    {
-        public override string Description => @"Tests the pause overlay";
-
-        private PauseOverlay pauseOverlay;
-        private int retryCount;
-
-        public override void Reset()
-        {
-            base.Reset();
-
-            Add(pauseOverlay = new PauseOverlay
-            {
-                Depth = -1,
-                OnResume = () => Logger.Log(@"Resume"),
-                OnRetry = () => Logger.Log(@"Retry"),
-                OnQuit = () => Logger.Log(@"Quit")
-            });
-            AddButton("Pause", pauseOverlay.Show);
-            AddButton("Add Retry", delegate
-            {
-                retryCount++;
-                pauseOverlay.Retries = retryCount;
-            });
-
-            retryCount = 0;
-        }
-    }
-}

osu.Desktop.VisualTests/Tests/TestCasePlayer.cs

@@ -1,112 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using System.Collections.Generic;
-using System.Linq;
-using osu.Framework.Allocation;
-using osu.Framework.Screens.Testing;
-using osu.Game.Beatmaps;
-using OpenTK;
-using osu.Framework.Graphics.Sprites;
-using osu.Game.Beatmaps.IO;
-using osu.Game.Database;
-using osu.Game.Modes;
-using osu.Game.Modes.Objects;
-using osu.Game.Modes.Osu.Objects;
-using osu.Game.Screens.Play;
-using OpenTK.Graphics;
-
-namespace osu.Desktop.VisualTests.Tests
-{
-    internal class TestCasePlayer : TestCase
-    {
-        protected Player Player;
-        private BeatmapDatabase db;
-
-
-        public override string Description => @"Showing everything to play the game.";
-
-        [BackgroundDependencyLoader]
-        private void load(BeatmapDatabase db)
-        {
-            this.db = db;
-        }
-
-        public override void Reset()
-        {
-            base.Reset();
-
-            WorkingBeatmap beatmap = null;
-
-            var beatmapInfo = db.Query<BeatmapInfo>().FirstOrDefault(b => b.Mode == PlayMode.Osu);
-            if (beatmapInfo != null)
-                beatmap = db.GetWorkingBeatmap(beatmapInfo);
-
-            if (beatmap?.Track == null)
-            {
-                var objects = new List<HitObject>();
-
-                int time = 1500;
-                for (int i = 0; i < 50; i++)
-                {
-                    objects.Add(new HitCircle
-                    {
-                        StartTime = time,
-                        Position = new Vector2(i % 4 == 0 || i % 4 == 2 ? 0 : 512,
-                        i % 4 < 2 ? 0 : 384),
-                        NewCombo = i % 4 == 0
-                    });
-
-                    time += 500;
-                }
-
-                Beatmap b = new Beatmap
-                {
-                    HitObjects = objects,
-                    BeatmapInfo = new BeatmapInfo
-                    {
-                        BaseDifficulty = new BaseDifficulty(),
-                        Metadata = new BeatmapMetadata
-                        {
-                            Artist = @"Unknown",
-                            Title = @"Sample Beatmap",
-                            Author = @"peppy",
-                        }
-                    }
-                };
-
-                beatmap = new TestWorkingBeatmap(b);
-            }
-
-            Add(new Box
-            {
-                RelativeSizeAxes = Framework.Graphics.Axes.Both,
-                Colour = Color4.Black,
-            });
-
-            Add(new PlayerLoader(Player = CreatePlayer(beatmap))
-            {
-                Beatmap = beatmap
-            });
-        }
-
-        protected virtual Player CreatePlayer(WorkingBeatmap beatmap)
-        {
-            return new Player
-            {
-                Beatmap = beatmap
-            };
-        }
-
-        private class TestWorkingBeatmap : WorkingBeatmap
-        {
-            public TestWorkingBeatmap(Beatmap beatmap)
-                : base(beatmap.BeatmapInfo, beatmap.BeatmapInfo.BeatmapSet)
-            {
-                Beatmap = beatmap;
-            }
-
-            protected override ArchiveReader GetReader() => null;
-        }
-    }
-}

osu.Desktop.VisualTests/Tests/TestCaseReplay.cs

@@ -1,31 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Framework.Input.Handlers;
-using osu.Game.Beatmaps;
-using osu.Game.Modes.Mods;
-using osu.Game.Modes.Osu.Mods;
-using osu.Game.Screens.Play;
-using System;
-using System.IO;
-
-namespace osu.Desktop.VisualTests.Tests
-{
-    internal class TestCaseReplay : TestCasePlayer
-    {
-        private WorkingBeatmap beatmap;
-
-        private InputHandler replay;
-
-        private Func<Stream> getReplayStream;
-
-        public override string Description => @"Testing replay playback.";
-
-        protected override Player CreatePlayer(WorkingBeatmap beatmap)
-        {
-            beatmap.Mods.Value = new Mod[] { new OsuModAutoplay() };
-
-            return base.CreatePlayer(beatmap);
-        }
-    }
-}

osu.Desktop.VisualTests/Tests/TestCaseTwoLayerButton.cs

@@ -1,22 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Framework.Screens.Testing;
-using osu.Game.Graphics.UserInterface;
-using osu.Game.Screens.Play;
-
-namespace osu.Desktop.VisualTests.Tests
-{
-    internal class TestCaseTwoLayerButton : TestCase
-    {
-        public override string Description => @"Back and skip and what not";
-
-        public override void Reset()
-        {
-            base.Reset();
-
-            Add(new BackButton());
-            Add(new SkipButton());
-        }
-    }
-}

osu.Desktop.VisualTests/osu.Desktop.VisualTests.csproj

@@ -1,229 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="4.0">
-  <PropertyGroup>
-    <ProjectGuid>{69051C69-12AE-4E7D-A3E6-460D2E282312}</ProjectGuid>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <OutputType>WinExe</OutputType>
-    <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>osu.Desktop.VisualTests</RootNamespace>
-    <AssemblyName>osu!</AssemblyName>
-    <ManifestCertificateThumbprint>3CF060CD28877D0E3112948951A64B2A7CEEC909</ManifestCertificateThumbprint>
-    <ManifestKeyFile>codesigning.pfx</ManifestKeyFile>
-    <GenerateManifests>false</GenerateManifests>
-    <SignManifests>false</SignManifests>
-    <IsWebBootstrapper>false</IsWebBootstrapper>
-    <FileUpgradeFlags>
-    </FileUpgradeFlags>
-    <OldToolsVersion>3.5</OldToolsVersion>
-    <UpgradeBackupLocation>
-    </UpgradeBackupLocation>
-    <StartupObject>osu.Desktop.VisualTests.Program</StartupObject>
-    <RunPostBuildEvent>OnOutputUpdated</RunPostBuildEvent>
-    <SignAssembly>false</SignAssembly>
-    <TargetZone>LocalIntranet</TargetZone>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
-    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects> 
-    <PublishUrl>publish\</PublishUrl>
-    <Install>true</Install>
-    <InstallFrom>Disk</InstallFrom>
-    <UpdateEnabled>false</UpdateEnabled>
-    <UpdateMode>Foreground</UpdateMode>
-    <UpdateInterval>7</UpdateInterval>
-    <UpdateIntervalUnits>Days</UpdateIntervalUnits>
-    <UpdatePeriodically>false</UpdatePeriodically>
-    <UpdateRequired>false</UpdateRequired>
-    <MapFileExtensions>true</MapFileExtensions>
-    <ApplicationRevision>2</ApplicationRevision>
-    <ApplicationVersion>1.0.0.%2a</ApplicationVersion>
-    <UseApplicationTrust>false</UseApplicationTrust>
-    <BootstrapperEnabled>true</BootstrapperEnabled>
-    <ProductVersion>12.0.0</ProductVersion>
-    <SchemaVersion>2.0</SchemaVersion>
-    <TargetFrameworkProfile>
-    </TargetFrameworkProfile>
-    <NuGetPackageImportStamp>
-    </NuGetPackageImportStamp>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>DEBUG</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>0</WarningLevel>
-    <NoStdLib>true</NoStdLib>
-    <UseVSHostingProcess>false</UseVSHostingProcess>
-    <PlatformTarget>AnyCPU</PlatformTarget>
-    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
-    <RunCodeAnalysis>false</RunCodeAnalysis>
-    <Prefer32Bit>false</Prefer32Bit>
-    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
-    <DebugType>none</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>CuttingEdge NoUpdate</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <NoStdLib>true</NoStdLib>
-    <UseVSHostingProcess>false</UseVSHostingProcess>
-    <PlatformTarget>AnyCPU</PlatformTarget>
-    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
-    <Prefer32Bit>false</Prefer32Bit>
-    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
-  </PropertyGroup>
-  <PropertyGroup>
-    <Win32Resource>
-    </Win32Resource>
-  </PropertyGroup>
-  <ItemGroup>
-    <Reference Include="mscorlib" />
-    <Reference Include="OpenTK, Version=2.0.0.0, Culture=neutral, PublicKeyToken=bad199fe84eb3df4, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\ppy.OpenTK.2.0.50727.1340\lib\net45\OpenTK.dll</HintPath>
-      <Private>True</Private>
-    </Reference>
-    <Reference Include="SharpCompress, Version=0.15.1.0, Culture=neutral, PublicKeyToken=afb0a02973931d96, processorArchitecture=MSIL">
-      <HintPath>..\packages\SharpCompress.0.15.1\lib\net45\SharpCompress.dll</HintPath>
-      <Private>True</Private>
-    </Reference>
-    <Reference Include="SQLite.Net, Version=3.1.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>$(SolutionDir)\packages\SQLite.Net.Core-PCL.3.1.1\lib\portable-win8+net45+wp8+wpa81+MonoAndroid1+MonoTouch1\SQLite.Net.dll</HintPath>
-    </Reference>
-    <Reference Include="System" />
-    <Reference Include="Newtonsoft.Json">
-      <HintPath>$(SolutionDir)\packages\Newtonsoft.Json.9.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
-    </Reference>
-    <Reference Include="SQLiteNetExtensions">
-      <HintPath>$(SolutionDir)\packages\SQLiteNetExtensions.1.3.0\lib\portable-net45+netcore45+wpa81+wp8+MonoAndroid1+MonoTouch1\SQLiteNetExtensions.dll</HintPath>
-    </Reference>
-    <Reference Include="SQLite.Net.Platform.Win32">
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-    </Reference>
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osu.Desktop.VisualTests/packages.config

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-<?xml version="1.0" encoding="utf-8"?>
-<!--
-Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
--->
-<packages>
-  <package id="Newtonsoft.Json" version="9.0.1" targetFramework="net45" />
-  <package id="ppy.OpenTK" version="2.0.50727.1340" targetFramework="net45" />
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-</packages>

osu.Desktop/Beatmaps/IO/LegacyFilesystemReader.cs

@@ -1,52 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using System.IO;
-using System.Linq;
-using osu.Game.Beatmaps.Formats;
-using osu.Game.Beatmaps.IO;
-using osu.Game.Beatmaps;
-using osu.Game.Database;
-
-namespace osu.Desktop.Beatmaps.IO
-{
-    /// <summary>
-    /// Reads an extracted legacy beatmap from disk.
-    /// </summary>
-    public class LegacyFilesystemReader : ArchiveReader
-    {
-        public static void Register() => AddReader<LegacyFilesystemReader>((storage, path) => Directory.Exists(path));
-
-        private string basePath { get; }
-        private Beatmap firstMap { get; }
-
-        public LegacyFilesystemReader(string path)
-        {
-            basePath = path;
-            BeatmapFilenames = Directory.GetFiles(basePath, @"*.osu").Select(Path.GetFileName).ToArray();
-            if (BeatmapFilenames.Length == 0)
-                throw new FileNotFoundException(@"This directory contains no beatmaps");
-            StoryboardFilename = Directory.GetFiles(basePath, @"*.osb").Select(Path.GetFileName).FirstOrDefault();
-            using (var stream = new StreamReader(GetStream(BeatmapFilenames[0])))
-            {
-                var decoder = BeatmapDecoder.GetDecoder(stream);
-                firstMap = decoder.Decode(stream);
-            }
-        }
-
-        public override Stream GetStream(string name)
-        {
-            return File.OpenRead(Path.Combine(basePath, name));
-        }
-
-        public override BeatmapMetadata ReadMetadata()
-        {
-            return firstMap.BeatmapInfo.Metadata;
-        }
-
-        public override void Dispose()
-        {
-            // no-op
-        }
-    }
-}

osu.Desktop/OsuGameDesktop.cs

@@ -1,83 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Game;
-using System.Linq;
-using System.Windows.Forms;
-using osu.Framework.Platform;
-using osu.Framework.Desktop.Platform;
-using osu.Desktop.Overlays;
-using System.Reflection;
-using System.Drawing;
-using System.IO;
-using System.Threading.Tasks;
-using osu.Game.Screens.Menu;
-
-namespace osu.Desktop
-{
-    internal class OsuGameDesktop : OsuGame
-    {
-        private VersionManager versionManager;
-
-        public OsuGameDesktop(string[] args = null)
-            : base(args)
-        {
-            versionManager = new VersionManager { Depth = int.MinValue };
-        }
-
-        protected override void LoadComplete()
-        {
-            base.LoadComplete();
-
-            versionManager.LoadAsync(this);
-            ScreenChanged += s =>
-            {
-                if (!versionManager.IsAlive && s is Intro)
-                    Add(versionManager);
-            };
-        }
-
-        public override void SetHost(GameHost host)
-        {
-            base.SetHost(host);
-            var desktopWindow = host.Window as DesktopGameWindow;
-            if (desktopWindow != null)
-            {
-                desktopWindow.Icon = Icon.ExtractAssociatedIcon(Assembly.GetExecutingAssembly().Location);
-                desktopWindow.Title = Name;
-
-                desktopWindow.DragEnter += dragEnter;
-                desktopWindow.DragDrop += dragDrop;
-            }
-        }
-
-        private void dragDrop(DragEventArgs e)
-        {
-            // this method will only be executed if e.Effect in dragEnter gets set to something other that None.
-            var dropData = (object[])e.Data.GetData(DataFormats.FileDrop);
-            var filePaths = dropData.Select(f => f.ToString()).ToArray();
-
-            if (filePaths.All(f => Path.GetExtension(f) == @".osz"))
-                Task.Run(() => BeatmapDatabase.Import(filePaths));
-            else if (filePaths.All(f => Path.GetExtension(f) == @".osr"))
-                Task.Run(() =>
-                {
-                    var score = ScoreDatabase.ReadReplayFile(filePaths.First());
-                    Schedule(() => LoadScore(score));
-                });
-        }
-
-        private static readonly string[] allowed_extensions = { @".osz", @".osr" };
-
-        private void dragEnter(DragEventArgs e)
-        {
-            // dragDrop will only be executed if e.Effect gets set to something other that None in this method.
-            bool isFile = e.Data.GetDataPresent(DataFormats.FileDrop);
-            if (isFile)
-            {
-                var paths = ((object[])e.Data.GetData(DataFormats.FileDrop)).Select(f => f.ToString()).ToArray();
-                e.Effect = allowed_extensions.Any(ext => paths.All(p => p.EndsWith(ext))) ? DragDropEffects.Copy : DragDropEffects.None;
-            }
-        }
-    }
-}

osu.Desktop/Properties/AssemblyInfo.cs

@@ -1,28 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using System.Reflection;
-using System.Runtime.InteropServices;
-
-// General Information about an assembly is controlled through the following 
-// set of attributes. Change these attribute values to modify the information
-// associated with an assembly.
-[assembly: AssemblyTitle("osu!lazer")]
-[assembly: AssemblyDescription("click the circles. to the beat.")]
-[assembly: AssemblyConfiguration("")]
-[assembly: AssemblyCompany("ppy Pty Ltd")]
-[assembly: AssemblyProduct("osu!lazer")]
-[assembly: AssemblyCopyright("ppy Pty Ltd 2007-2017")]
-[assembly: AssemblyTrademark("")]
-[assembly: AssemblyCulture("")]
-
-// Setting ComVisible to false makes the types in this assembly not visible 
-// to COM components.  If you need to access a type in this assembly from 
-// COM, set the ComVisible attribute to true on that type.
-[assembly: ComVisible(false)]
-
-// The following GUID is for the ID of the typelib if this project is exposed to COM
-[assembly: Guid("55e28cb2-7b6c-4595-8dcc-9871d8aad7e9")]
-
-[assembly: AssemblyVersion("0.0.0")]
-[assembly: AssemblyFileVersion("0.0.0")]

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-    <OutputType>WinExe</OutputType>
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-    <AssemblyName>osu!</AssemblyName>
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-    <Install>true</Install>
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-    <ProjectReference Include="..\osu.Game.Modes.Taiko\osu.Game.Modes.Taiko.csproj">
-      <Project>{f167e17a-7de6-4af5-b920-a5112296c695}</Project>
-      <Name>osu.Game.Modes.Taiko</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game\osu.Game.csproj">
-      <Project>{0d3fbf8a-7464-4cf7-8c90-3e7886df2d4d}</Project>
-      <Name>osu.Game</Name>
-    </ProjectReference>
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="OsuGameDesktop.cs" />
-    <Compile Include="Overlays\VersionManager.cs" />
-    <Compile Include="Program.cs" />
-    <Compile Include="Beatmaps\IO\LegacyFilesystemReader.cs" />
-    <Compile Include="Properties\AssemblyInfo.cs" />
-  </ItemGroup>
-  <ItemGroup>
-    <Content Include="lazer.ico" />
-  </ItemGroup>
-  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
-  <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
-       Other similar extension points exist, see Microsoft.Common.targets.
-  <Target Name="BeforeBuild">
-  </Target>
-  <Target Name="AfterBuild">
-  </Target>
-  -->
-  <ProjectExtensions>
-    <VisualStudio>
-    </VisualStudio>
-  </ProjectExtensions>
-  <PropertyGroup>
-    <PreBuildEvent>
-    </PreBuildEvent>
-  </PropertyGroup>
-  <PropertyGroup>
-    <PostBuildEvent>
-    </PostBuildEvent>
-  </PropertyGroup>
-</Project>

osu.Desktop/packages.config

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
--->
-<packages>
-  <package id="DeltaCompressionDotNet" version="1.1.0" targetFramework="net45" />
-  <package id="Microsoft.Net.Http" version="2.2.29" targetFramework="net45" />
-  <package id="Mono.Cecil" version="0.9.6.4" targetFramework="net45" />
-  <package id="Splat" version="2.0.0" targetFramework="net45" />
-  <package id="squirrel.windows" version="1.5.2" targetFramework="net45" />
-</packages>

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

@@ -1,20 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Game.Beatmaps;
-using osu.Game.Modes.Catch.Objects;
-using System.Collections.Generic;
-
-namespace osu.Game.Modes.Catch.Beatmaps
-{
-    internal class CatchBeatmapConverter : IBeatmapConverter<CatchBaseHit>
-    {
-        public Beatmap<CatchBaseHit> Convert(Beatmap original)
-        {
-            return new Beatmap<CatchBaseHit>(original)
-            {
-                HitObjects = new List<CatchBaseHit>() // Todo: Convert HitObjects
-            };
-        }
-    }
-}

osu.Game.Modes.Catch/Beatmaps/CatchBeatmapProcessor.cs

@@ -1,19 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Game.Beatmaps;
-using osu.Game.Modes.Catch.Objects;
-
-namespace osu.Game.Modes.Catch.Beatmaps
-{
-    internal class CatchBeatmapProcessor : IBeatmapProcessor<CatchBaseHit>
-    {
-        public void SetDefaults(CatchBaseHit hitObject, Beatmap<CatchBaseHit> beatmap)
-        {
-        }
-
-        public void PostProcess(Beatmap<CatchBaseHit> beatmap)
-        {
-        }
-    }
-}

osu.Game.Modes.Catch/Objects/CatchBaseHit.cs

@@ -1,12 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Game.Modes.Objects;
-
-namespace osu.Game.Modes.Catch.Objects
-{
-    public abstract class CatchBaseHit : HitObject
-    {
-        public float Position { get; set; }
-    }
-}

osu.Game.Modes.Catch/Objects/Drawable/DrawableFruit.cs

@@ -1,39 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Framework.Allocation;
-using osu.Framework.Graphics;
-using osu.Framework.Graphics.Sprites;
-using osu.Framework.Graphics.Textures;
-using osu.Framework.Graphics.Transforms;
-using OpenTK;
-
-namespace osu.Game.Modes.Catch.Objects.Drawable
-{
-    internal class DrawableFruit : Sprite
-    {
-        private CatchBaseHit h;
-
-        public DrawableFruit(CatchBaseHit h)
-        {
-            this.h = h;
-
-            Origin = Anchor.Centre;
-            Scale = new Vector2(0.1f);
-            RelativePositionAxes = Axes.Y;
-            Position = new Vector2(h.Position, -0.1f);
-        }
-
-        [BackgroundDependencyLoader]
-        private void load(TextureStore textures)
-        {
-            Texture = textures.Get(@"Menu/logo");
-
-            double duration = 0;
-
-            Transforms.Add(new TransformPosition { StartTime = h.StartTime - 200, EndTime = h.StartTime, StartValue = new Vector2(h.Position, -0.1f), EndValue = new Vector2(h.Position, 0.9f) });
-            Transforms.Add(new TransformAlpha { StartTime = h.StartTime + duration + 200, EndTime = h.StartTime + duration + 400, StartValue = 1, EndValue = 0 });
-            Expire(true);
-        }
-    }
-}

osu.Game.Modes.Catch/UI/CatchHitRenderer.cs

@@ -1,27 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Game.Beatmaps;
-using osu.Game.Modes.Catch.Beatmaps;
-using osu.Game.Modes.Catch.Objects;
-using osu.Game.Modes.Objects.Drawables;
-using osu.Game.Modes.UI;
-
-namespace osu.Game.Modes.Catch.UI
-{
-    public class CatchHitRenderer : HitRenderer<CatchBaseHit>
-    {
-        public CatchHitRenderer(WorkingBeatmap beatmap)
-            : base(beatmap)
-        {
-        }
-
-        protected override IBeatmapConverter<CatchBaseHit> CreateBeatmapConverter() => new CatchBeatmapConverter();
-
-        protected override IBeatmapProcessor<CatchBaseHit> CreateBeatmapProcessor() => new CatchBeatmapProcessor();
-
-        protected override Playfield<CatchBaseHit> CreatePlayfield() => new CatchPlayfield();
-
-        protected override DrawableHitObject<CatchBaseHit> GetVisualRepresentation(CatchBaseHit h) => null;// new DrawableFruit(h);
-    }
-}

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

@@ -1,24 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Framework.Graphics;
-using osu.Framework.Graphics.Sprites;
-using osu.Game.Modes.Catch.Objects;
-using osu.Game.Modes.UI;
-using OpenTK;
-
-namespace osu.Game.Modes.Catch.UI
-{
-    public class CatchPlayfield : Playfield<CatchBaseHit>
-    {
-        public CatchPlayfield()
-        {
-            RelativeSizeAxes = Axes.Y;
-            Size = new Vector2(512, 0.9f);
-            Anchor = Anchor.BottomCentre;
-            Origin = Anchor.BottomCentre;
-
-            Add(new Box { RelativeSizeAxes = Axes.Both, Alpha = 0.5f });
-        }
-    }
-}

osu.Game.Modes.Catch/packages.config

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<!--
-Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
--->
-<packages>
-  <package id="ppy.OpenTK" version="2.0.50727.1340" targetFramework="net45" />
-</packages>

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

@@ -1,20 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Game.Beatmaps;
-using osu.Game.Modes.Mania.Objects;
-using System.Collections.Generic;
-
-namespace osu.Game.Modes.Mania.Beatmaps
-{
-    internal class ManiaBeatmapConverter : IBeatmapConverter<ManiaBaseHit>
-    {
-        public Beatmap<ManiaBaseHit> Convert(Beatmap original)
-        {
-            return new Beatmap<ManiaBaseHit>(original)
-            {
-                HitObjects = new List<ManiaBaseHit>() // Todo: Implement
-            };
-        }
-    }
-}

osu.Game.Modes.Mania/Beatmaps/ManiaBeatmapProcessor.cs

@@ -1,19 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Game.Beatmaps;
-using osu.Game.Modes.Mania.Objects;
-
-namespace osu.Game.Modes.Mania.Beatmaps
-{
-    internal class ManiaBeatmapProcessor : IBeatmapProcessor<ManiaBaseHit>
-    {
-        public void SetDefaults(ManiaBaseHit hitObject, Beatmap<ManiaBaseHit> beatmap)
-        {
-        }
-
-        public void PostProcess(Beatmap<ManiaBaseHit> beatmap)
-        {
-        }
-    }
-}

osu.Game.Modes.Mania/Objects/Drawable/DrawableNote.cs

@@ -1,36 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Framework.Allocation;
-using osu.Framework.Graphics.Sprites;
-using osu.Framework.Graphics.Textures;
-using osu.Framework.Graphics.Transforms;
-using osu.Framework.Graphics;
-using OpenTK;
-
-namespace osu.Game.Modes.Mania.Objects.Drawable
-{
-    public class DrawableNote : Sprite
-    {
-        private readonly ManiaBaseHit note;
-
-        public DrawableNote(ManiaBaseHit note)
-        {
-            this.note = note;
-            Origin = Anchor.Centre;
-            Scale = new Vector2(0.1f);
-        }
-
-        [BackgroundDependencyLoader]
-        private void load(TextureStore textures)
-        {
-            Texture = textures.Get(@"Menu/logo");
-
-            double duration = 0;
-
-            Transforms.Add(new TransformPositionY { StartTime = note.StartTime - 200, EndTime = note.StartTime, StartValue = -0.1f, EndValue = 0.9f });
-            Transforms.Add(new TransformAlpha { StartTime = note.StartTime + duration + 200, EndTime = note.StartTime + duration + 400, StartValue = 1, EndValue = 0 });
-            Expire(true);
-        }
-    }
-}

osu.Game.Modes.Mania/UI/ManiaHitRenderer.cs

@@ -1,38 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Game.Beatmaps;
-using osu.Game.Modes.Mania.Beatmaps;
-using osu.Game.Modes.Mania.Objects;
-using osu.Game.Modes.Objects.Drawables;
-using osu.Game.Modes.UI;
-
-namespace osu.Game.Modes.Mania.UI
-{
-    public class ManiaHitRenderer : HitRenderer<ManiaBaseHit>
-    {
-        private readonly int columns;
-
-        public ManiaHitRenderer(WorkingBeatmap beatmap, int columns = 5)
-            : base(beatmap)
-        {
-            this.columns = columns;
-        }
-
-        protected override IBeatmapConverter<ManiaBaseHit> CreateBeatmapConverter() => new ManiaBeatmapConverter();
-
-        protected override IBeatmapProcessor<ManiaBaseHit> CreateBeatmapProcessor() => new ManiaBeatmapProcessor();
-
-        protected override Playfield<ManiaBaseHit> CreatePlayfield() => new ManiaPlayfield(columns);
-
-        protected override DrawableHitObject<ManiaBaseHit> GetVisualRepresentation(ManiaBaseHit h)
-        {
-            return null;
-            //return new DrawableNote(h)
-            //{
-            //    Position = new Vector2((float)(h.Column + 0.5) / columns, -0.1f),
-            //    RelativePositionAxes = Axes.Both
-            //};
-        }
-    }
-}

osu.Game.Modes.Mania/UI/ManiaPlayfield.cs

@@ -1,36 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Framework.Graphics;
-using osu.Framework.Graphics.Sprites;
-using osu.Game.Modes.Mania.Objects;
-using osu.Game.Modes.UI;
-using OpenTK;
-using OpenTK.Graphics;
-
-namespace osu.Game.Modes.Mania.UI
-{
-    public class ManiaPlayfield : Playfield<ManiaBaseHit>
-    {
-        public ManiaPlayfield(int columns)
-        {
-            RelativeSizeAxes = Axes.Both;
-            Size = new Vector2(columns / 20f, 1f);
-            Anchor = Anchor.BottomCentre;
-            Origin = Anchor.BottomCentre;
-
-            Add(new Box { RelativeSizeAxes = Axes.Both, Alpha = 0.5f });
-
-            for (int i = 0; i < columns; i++)
-                Add(new Box
-                {
-                    RelativeSizeAxes = Axes.Y,
-                    Size = new Vector2(2, 1),
-                    RelativePositionAxes = Axes.Both,
-                    Position = new Vector2((float)i / columns, 0),
-                    Alpha = 0.5f,
-                    Colour = Color4.Black
-                });
-        }
-    }
-}

osu.Game.Modes.Mania/osu.Game.Modes.Mania.csproj

@@ -1,97 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
-  <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <ProjectGuid>{48F4582B-7687-4621-9CBE-5C24197CB536}</ProjectGuid>
-    <OutputType>Library</OutputType>
-    <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>osu.Game.Modes.Mania</RootNamespace>
-    <AssemblyName>osu.Game.Modes.Mania</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
-    <FileAlignment>512</FileAlignment>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
-  </PropertyGroup>
-  <ItemGroup>
-    <Reference Include="OpenTK, Version=2.0.0.0, Culture=neutral, PublicKeyToken=bad199fe84eb3df4, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\ppy.OpenTK.2.0.50727.1340\lib\net45\OpenTK.dll</HintPath>
-      <Private>True</Private>
-    </Reference>
-    <Reference Include="System" />
-    <Reference Include="System.Core" />
-    <Reference Include="System.Drawing" />
-    <Reference Include="System.Xml.Linq" />
-    <Reference Include="System.Data.DataSetExtensions" />
-    <Reference Include="Microsoft.CSharp" />
-    <Reference Include="System.Data" />
-    <Reference Include="System.Net.Http" />
-    <Reference Include="System.Xml" />
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="Beatmaps\ManiaBeatmapConverter.cs" />
-    <Compile Include="Beatmaps\ManiaBeatmapProcessor.cs" />
-    <Compile Include="ManiaDifficultyCalculator.cs" />
-    <Compile Include="Objects\Drawable\DrawableNote.cs" />
-    <Compile Include="Objects\HoldNote.cs" />
-    <Compile Include="Objects\ManiaBaseHit.cs" />
-    <Compile Include="Objects\Note.cs" />
-    <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="UI\ManiaHitRenderer.cs" />
-    <Compile Include="UI\ManiaPlayfield.cs" />
-    <Compile Include="ManiaRuleset.cs" />
-    <Compile Include="Mods\ManiaMod.cs" />
-  </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\osu-framework\osu.Framework\osu.Framework.csproj">
-      <Project>{C76BF5B3-985E-4D39-95FE-97C9C879B83A}</Project>
-      <Name>osu.Framework</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game.Modes.Osu\osu.Game.Modes.Osu.csproj">
-      <Project>{C92A607B-1FDD-4954-9F92-03FF547D9080}</Project>
-      <Name>osu.Game.Modes.Osu</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game.Modes.Taiko\osu.Game.Modes.Taiko.csproj">
-      <Project>{F167E17A-7DE6-4AF5-B920-A5112296C695}</Project>
-      <Name>osu.Game.Modes.Taiko</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game\osu.Game.csproj">
-      <Project>{0D3FBF8A-7464-4CF7-8C90-3E7886DF2D4D}</Project>
-      <Name>osu.Game</Name>
-    </ProjectReference>
-  </ItemGroup>
-  <ItemGroup>
-    <None Include="..\osu.licenseheader">
-      <Link>osu.licenseheader</Link>
-    </None>
-    <None Include="OpenTK.dll.config" />
-    <None Include="packages.config" />
-  </ItemGroup>
-  <ItemGroup />
-  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
-       Other similar extension points exist, see Microsoft.Common.targets.
-  <Target Name="BeforeBuild">
-  </Target>
-  <Target Name="AfterBuild">
-  </Target>
-  -->
-</Project>

osu.Game.Modes.Mania/packages.config

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<!--
-Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
--->
-<packages>
-  <package id="ppy.OpenTK" version="2.0.50727.1340" targetFramework="net45" />
-</packages>

osu.Game.Modes.Osu/Objects/Drawables/DrawableHitCircle.cs

@@ -1,161 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using System;
-using osu.Framework.Graphics;
-using osu.Framework.Graphics.Transforms;
-using osu.Game.Modes.Objects.Drawables;
-using osu.Game.Modes.Osu.Objects.Drawables.Pieces;
-using OpenTK;
-using osu.Game.Modes.Objects.Types;
-
-namespace osu.Game.Modes.Osu.Objects.Drawables
-{
-    public class DrawableHitCircle : DrawableOsuHitObject, IDrawableHitObjectWithProxiedApproach
-    {
-        private OsuHitObject osuObject;
-
-        public ApproachCircle ApproachCircle;
-        private CirclePiece circle;
-        private RingPiece ring;
-        private FlashPiece flash;
-        private ExplodePiece explode;
-        private NumberPiece number;
-        private GlowPiece glow;
-
-        public DrawableHitCircle(OsuHitObject h) : base(h)
-        {
-            Origin = Anchor.Centre;
-
-            osuObject = h;
-
-            Position = osuObject.StackedPosition;
-            Scale = new Vector2(osuObject.Scale);
-
-            Children = new Drawable[]
-            {
-                glow = new GlowPiece
-                {
-                    Colour = osuObject.ComboColour
-                },
-                circle = new CirclePiece
-                {
-                    Colour = osuObject.ComboColour,
-                    Hit = () =>
-                    {
-                        if (Judgement.Result.HasValue) return false;
-
-                        ((PositionalJudgementInfo)Judgement).PositionOffset = Vector2.Zero; //todo: set to correct value
-                        UpdateJudgement(true);
-                        return true;
-                    },
-                },
-                number = new NumberPiece
-                {
-                    Text = h is Spinner ? "S" : (HitObject.ComboIndex + 1).ToString(),
-                },
-                ring = new RingPiece(),
-                flash = new FlashPiece(),
-                explode = new ExplodePiece
-                {
-                    Colour = osuObject.ComboColour,
-                },
-                ApproachCircle = new ApproachCircle
-                {
-                    Colour = osuObject.ComboColour,
-                }
-            };
-
-            //may not be so correct
-            Size = circle.DrawSize;
-        }
-
-        protected override void CheckJudgement(bool userTriggered)
-        {
-            if (!userTriggered)
-            {
-                if (Judgement.TimeOffset > HitObject.HitWindowFor(OsuScoreResult.Hit50))
-                    Judgement.Result = HitResult.Miss;
-                return;
-            }
-
-            double hitOffset = Math.Abs(Judgement.TimeOffset);
-
-            OsuJudgementInfo osuJudgement = (OsuJudgementInfo)Judgement;
-
-            if (hitOffset < HitObject.HitWindowFor(OsuScoreResult.Hit50))
-            {
-                Judgement.Result = HitResult.Hit;
-                osuJudgement.Score = HitObject.ScoreResultForOffset(hitOffset);
-            }
-            else
-                Judgement.Result = HitResult.Miss;
-        }
-
-        protected override void UpdateInitialState()
-        {
-            base.UpdateInitialState();
-
-            //sane defaults
-            ring.Alpha = circle.Alpha = number.Alpha = glow.Alpha = 1;
-            ApproachCircle.Alpha = 0;
-            ApproachCircle.Scale = new Vector2(4);
-            explode.Alpha = 0;
-        }
-
-        protected override void UpdatePreemptState()
-        {
-            base.UpdatePreemptState();
-
-            ApproachCircle.FadeIn(Math.Min(TIME_FADEIN * 2, TIME_PREEMPT));
-            ApproachCircle.ScaleTo(1.1f, TIME_PREEMPT);
-        }
-
-        protected override void UpdateState(ArmedState state)
-        {
-            if (!IsLoaded) return;
-
-            base.UpdateState(state);
-
-            ApproachCircle.FadeOut();
-
-            double endTime = (osuObject as IHasEndTime)?.EndTime ?? osuObject.StartTime;
-            double duration = endTime - osuObject.StartTime;
-
-            glow.Delay(duration);
-            glow.FadeOut(400);
-
-            switch (state)
-            {
-                case ArmedState.Idle:
-                    Delay(duration + TIME_PREEMPT);
-                    FadeOut(TIME_FADEOUT);
-                    break;
-                case ArmedState.Miss:
-                    FadeOut(TIME_FADEOUT / 5);
-                    break;
-                case ArmedState.Hit:
-                    const double flash_in = 40;
-
-                    flash.FadeTo(0.8f, flash_in);
-                    flash.Delay(flash_in);
-                    flash.FadeOut(100);
-
-                    explode.FadeIn(flash_in);
-
-                    Delay(flash_in, true);
-
-                    //after the flash, we can hide some elements that were behind it
-                    ring.FadeOut();
-                    circle.FadeOut();
-                    number.FadeOut();
-
-                    FadeOut(800);
-                    ScaleTo(Scale * 1.5f, 400, EasingTypes.OutQuad);
-                    break;
-            }
-        }
-
-        public Drawable ProxiedLayer => ApproachCircle;
-    }
-}

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

@@ -1,107 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using System.ComponentModel;
-using osu.Game.Modes.Objects.Drawables;
-
-namespace osu.Game.Modes.Osu.Objects.Drawables
-{
-    public class DrawableOsuHitObject : DrawableHitObject<OsuHitObject>
-    {
-        public const float TIME_PREEMPT = 600;
-        public const float TIME_FADEIN = 400;
-        public const float TIME_FADEOUT = 500;
-
-        public DrawableOsuHitObject(OsuHitObject hitObject)
-            : base(hitObject)
-        {
-        }
-
-        protected override JudgementInfo CreateJudgementInfo() => new OsuJudgementInfo { MaxScore = OsuScoreResult.Hit300 };
-
-        protected override void UpdateState(ArmedState state)
-        {
-            if (!IsLoaded) return;
-
-            Flush();
-
-            UpdateInitialState();
-
-            Delay(HitObject.StartTime - Time.Current - TIME_PREEMPT + Judgement.TimeOffset, true);
-
-            UpdatePreemptState();
-
-            Delay(TIME_PREEMPT, true);
-        }
-
-        protected virtual void UpdatePreemptState()
-        {
-            FadeIn(TIME_FADEIN);
-        }
-
-        protected virtual void UpdateInitialState()
-        {
-            Alpha = 0;
-        }
-    }
-
-    public class OsuJudgementInfo : PositionalJudgementInfo
-    {
-        /// <summary>
-        /// The score the user achieved.
-        /// </summary>
-        public OsuScoreResult Score;
-
-        /// <summary>
-        /// The score which would be achievable on a perfect hit.
-        /// </summary>
-        public OsuScoreResult MaxScore = OsuScoreResult.Hit300;
-
-        public int ScoreValue => scoreToInt(Score);
-
-        public int MaxScoreValue => scoreToInt(MaxScore);
-
-        private int scoreToInt(OsuScoreResult result)
-        {
-            switch (result)
-            {
-                default:
-                    return 0;
-                case OsuScoreResult.Hit50:
-                    return 50;
-                case OsuScoreResult.Hit100:
-                    return 100;
-                case OsuScoreResult.Hit300:
-                    return 300;
-                case OsuScoreResult.SliderTick:
-                    return 10;
-            }
-        }
-
-        public ComboResult Combo;
-    }
-
-    public enum ComboResult
-    {
-        [Description(@"")]
-        None,
-        [Description(@"Good")]
-        Good,
-        [Description(@"Amazing")]
-        Perfect
-    }
-
-    public enum OsuScoreResult
-    {
-        [Description(@"Miss")]
-        Miss,
-        [Description(@"50")]
-        Hit50,
-        [Description(@"100")]
-        Hit100,
-        [Description(@"300")]
-        Hit300,
-        [Description(@"10")]
-        SliderTick
-    }
-}

osu.Game.Modes.Osu/Objects/Drawables/DrawableSliderTick.cs

@@ -1,120 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using System;
-using osu.Framework.Allocation;
-using osu.Framework.Audio;
-using osu.Framework.Audio.Sample;
-using osu.Framework.Graphics;
-using osu.Framework.Graphics.Sprites;
-using osu.Framework.Graphics.Transforms;
-using osu.Game.Beatmaps.Samples;
-using osu.Game.Modes.Objects.Drawables;
-using OpenTK;
-using OpenTK.Graphics;
-
-namespace osu.Game.Modes.Osu.Objects.Drawables
-{
-    public class DrawableSliderTick : DrawableOsuHitObject
-    {
-        private SliderTick sliderTick;
-
-        public double FadeInTime;
-        public double FadeOutTime;
-
-        public bool Tracking;
-
-        public override bool RemoveWhenNotAlive => false;
-
-        protected override JudgementInfo CreateJudgementInfo() => new OsuJudgementInfo { MaxScore = OsuScoreResult.SliderTick };
-
-        public DrawableSliderTick(SliderTick sliderTick) : base(sliderTick)
-        {
-            this.sliderTick = sliderTick;
-
-            Size = new Vector2(16) * sliderTick.Scale;
-
-            Masking = true;
-            CornerRadius = Size.X / 2;
-
-            Origin = Anchor.Centre;
-
-            BorderThickness = 2;
-            BorderColour = Color4.White;
-
-            Children = new Drawable[]
-            {
-                new Box
-                {
-                    RelativeSizeAxes = Axes.Both,
-                    Colour = sliderTick.ComboColour,
-                    Alpha = 0.3f,
-                }
-            };
-        }
-
-        private SampleChannel sample;
-
-        [BackgroundDependencyLoader]
-        private void load(AudioManager audio)
-        {
-            string sampleSet = (HitObject.Sample?.Set ?? SampleSet.Normal).ToString().ToLower();
-
-            sample = audio.Sample.Get($@"Gameplay/{sampleSet}-slidertick");
-        }
-
-        protected override void PlaySample()
-        {
-            sample?.Play();
-        }
-
-
-        protected override void CheckJudgement(bool userTriggered)
-        {
-            var j = (OsuJudgementInfo)Judgement;
-
-            if (Judgement.TimeOffset >= 0)
-            {
-                j.Result = Tracking ? HitResult.Hit : HitResult.Miss;
-                j.Score = Tracking ? OsuScoreResult.SliderTick : OsuScoreResult.Miss;
-            }
-        }
-        
-        protected override void UpdatePreemptState()
-        {
-            var animIn = Math.Min(150, sliderTick.StartTime - FadeInTime);
-
-            ScaleTo(0.5f);
-            ScaleTo(1.2f, animIn);
-            FadeIn(animIn);
-
-            Delay(animIn);
-            ScaleTo(1, 150, EasingTypes.Out);
-
-            Delay(-animIn);
-        }
-
-        protected override void UpdateState(ArmedState state)
-        {
-            if (!IsLoaded) return;
-
-            base.UpdateState(state);
-
-            switch (state)
-            {
-                case ArmedState.Idle:
-                    Delay(FadeOutTime - sliderTick.StartTime);
-                    FadeOut();
-                    break;
-                case ArmedState.Miss:
-                    FadeOut(160);
-                    FadeColour(Color4.Red, 80);
-                    break;
-                case ArmedState.Hit:
-                    FadeOut(120, EasingTypes.OutQuint);
-                    ScaleTo(Scale * 1.5f, 120, EasingTypes.OutQuint);
-                    break;
-            }
-        }
-    }
-}

osu.Game.Modes.Osu/Objects/Drawables/DrawableSpinner.cs

@@ -1,158 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using System;
-using osu.Framework.Graphics;
-using osu.Framework.Graphics.Containers;
-using osu.Framework.Graphics.Transforms;
-using osu.Framework.MathUtils;
-using osu.Game.Modes.Objects.Drawables;
-using osu.Game.Modes.Osu.Objects.Drawables.Pieces;
-using OpenTK;
-using OpenTK.Graphics;
-
-namespace osu.Game.Modes.Osu.Objects.Drawables
-{
-    public class DrawableSpinner : DrawableOsuHitObject
-    {
-        private Spinner spinner;
-
-        private SpinnerDisc disc;
-        private SpinnerBackground background;
-        private Container circleContainer;
-        private DrawableHitCircle circle;
-
-        public DrawableSpinner(Spinner s) : base(s)
-        {
-            Origin = Anchor.Centre;
-            Position = s.Position;
-
-            //take up full playfield.
-            Size = new Vector2(512);
-
-            spinner = s;
-
-            Children = new Drawable[]
-            {
-                background = new SpinnerBackground
-                {
-                    Alpha = 0,
-                    Anchor = Anchor.Centre,
-                    Origin = Anchor.Centre,
-                    DiscColour = Color4.Black
-                },
-                disc = new SpinnerDisc
-                {
-                    Alpha = 0,
-                    Anchor = Anchor.Centre,
-                    Origin = Anchor.Centre,
-                    DiscColour = s.ComboColour
-                },
-                circleContainer = new Container
-                {
-                    AutoSizeAxes = Axes.Both,
-                    Anchor = Anchor.Centre,
-                    Origin = Anchor.Centre,
-                    Children = new []
-                    {
-                        circle = new DrawableHitCircle(s)
-                        {
-                            Interactive = false,
-                            Position = Vector2.Zero,
-                            Anchor = Anchor.Centre,
-                        }
-                    }
-                }
-            };
-
-            background.Scale = scaleToCircle;
-            disc.Scale = scaleToCircle;
-        }
-
-        public override bool Contains(Vector2 screenSpacePos) => true;
-
-        protected override void CheckJudgement(bool userTriggered)
-        {
-            if (Time.Current < HitObject.StartTime) return;
-
-            var j = (OsuJudgementInfo)Judgement;
-
-            disc.ScaleTo(Interpolation.ValueAt(Math.Sqrt(Progress), scaleToCircle, Vector2.One, 0, 1), 100);
-
-            if (Progress >= 1)
-                disc.Complete = true;
-
-            if (!userTriggered && Time.Current >= spinner.EndTime)
-            {
-                if (Progress >= 1)
-                {
-                    j.Score = OsuScoreResult.Hit300;
-                    j.Result = HitResult.Hit;
-                }
-                else if (Progress > .9)
-                {
-                    j.Score = OsuScoreResult.Hit100;
-                    j.Result = HitResult.Hit;
-                }
-                else if (Progress > .75)
-                {
-                    j.Score = OsuScoreResult.Hit50;
-                    j.Result = HitResult.Hit;
-                }
-                else
-                {
-                    j.Score = OsuScoreResult.Miss;
-                    if (Time.Current >= spinner.EndTime)
-                        j.Result = HitResult.Miss;
-                }
-            }
-        }
-
-        private Vector2 scaleToCircle => circle.Scale * circle.DrawWidth / DrawWidth * 0.95f;
-
-        private float spinsPerMinuteNeeded = 100 + 5 * 15; //TODO: read per-map OD and place it on the 5
-
-        private float rotationsNeeded => (float)(spinsPerMinuteNeeded * (spinner.EndTime - spinner.StartTime) / 60000f);
-
-        public float Progress => MathHelper.Clamp(disc.RotationAbsolute / 360 / rotationsNeeded, 0, 1);
-
-        protected override void UpdatePreemptState()
-        {
-            base.UpdatePreemptState();
-
-            circleContainer.ScaleTo(1, 400, EasingTypes.OutElastic);
-
-            background.Delay(TIME_PREEMPT - 500);
-
-            background.ScaleTo(scaleToCircle * 1.2f, 400, EasingTypes.OutQuint);
-            background.FadeIn(200);
-
-            background.Delay(400);
-            background.ScaleTo(1, 250, EasingTypes.OutQuint);
-
-            disc.Delay(TIME_PREEMPT - 50);
-            disc.FadeIn(200);
-        }
-
-        protected override void UpdateState(ArmedState state)
-        {
-            if (!IsLoaded) return;
-
-            base.UpdateState(state);
-
-            Delay(spinner.Duration, true);
-
-            FadeOut(160);
-
-            switch (state)
-            {
-                case ArmedState.Hit:
-                    ScaleTo(Scale * 1.2f, 320, EasingTypes.Out);
-                    break;
-                case ArmedState.Miss:
-                    ScaleTo(Scale * 0.8f, 320, EasingTypes.In);
-                    break;
-            }
-        }
-    }
-}

osu.Game.Modes.Osu/Objects/Drawables/HitExplosion.cs

@@ -1,85 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Framework.Extensions;
-using osu.Framework.Graphics;
-using osu.Framework.Graphics.Containers;
-using osu.Framework.Graphics.Sprites;
-using osu.Framework.Graphics.Transforms;
-using osu.Game.Graphics.Sprites;
-using osu.Game.Modes.Objects.Drawables;
-using OpenTK;
-using OpenTK.Graphics;
-
-namespace osu.Game.Modes.Osu.Objects.Drawables
-{
-    public class HitExplosion : FillFlowContainer
-    {
-        private readonly OsuJudgementInfo judgement;
-        private SpriteText line1;
-        private SpriteText line2;
-
-        public HitExplosion(OsuJudgementInfo judgement, OsuHitObject h = null)
-        {
-            this.judgement = judgement;
-            AutoSizeAxes = Axes.Both;
-            Origin = Anchor.Centre;
-
-            Direction = FillDirection.Vertical;
-            Spacing = new Vector2(0, 2);
-            Position = (h?.StackedEndPosition ?? Vector2.Zero) + judgement.PositionOffset;
-
-            Children = new Drawable[]
-            {
-                line1 = new OsuSpriteText
-                {
-                    Anchor = Anchor.TopCentre,
-                    Origin = Anchor.TopCentre,
-                    Text = judgement.Score.GetDescription(),
-                    Font = @"Venera",
-                    TextSize = 16,
-                },
-                line2 = new OsuSpriteText
-                {
-                    Text = judgement.Combo.GetDescription(),
-                    Font = @"Venera",
-                    TextSize = 11,
-                }
-            };
-        }
-
-        protected override void LoadComplete()
-        {
-            base.LoadComplete();
-
-            if (judgement.Result == HitResult.Miss)
-            {
-                FadeInFromZero(60);
-
-                ScaleTo(1.6f);
-                ScaleTo(1, 100, EasingTypes.In);
-
-                MoveToOffset(new Vector2(0, 100), 800, EasingTypes.InQuint);
-                RotateTo(40, 800, EasingTypes.InQuint);
-
-                Delay(600);
-                FadeOut(200);
-            }
-            else
-            {
-                line1.TransformSpacingTo(new Vector2(14, 0), 1800, EasingTypes.OutQuint);
-                line2.TransformSpacingTo(new Vector2(14, 0), 1800, EasingTypes.OutQuint);
-                FadeOut(500);
-            }
-
-            switch (judgement.Result)
-            {
-                case HitResult.Miss:
-                    Colour = Color4.Red;
-                    break;
-            }
-
-            Expire();
-        }
-    }
-}

osu.Game.Modes.Osu/Objects/Drawables/Pieces/SpinnerBackground.cs

@@ -1,10 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-namespace osu.Game.Modes.Osu.Objects.Drawables.Pieces
-{
-    public class SpinnerBackground : SpinnerDisc
-    {
-        public override bool HandleInput => false;
-    }
-}

osu.Game.Modes.Osu/Objects/Drawables/Pieces/SpinnerDisc.cs

@@ -1,206 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using System;
-using System.Linq;
-using osu.Framework.Allocation;
-using osu.Framework.Extensions.Color4Extensions;
-using osu.Framework.Graphics;
-using osu.Framework.Graphics.Colour;
-using osu.Framework.Graphics.Containers;
-using osu.Framework.Graphics.Sprites;
-using osu.Framework.Graphics.Transforms;
-using osu.Framework.Input;
-using osu.Game.Graphics;
-using OpenTK;
-using OpenTK.Graphics;
-
-namespace osu.Game.Modes.Osu.Objects.Drawables.Pieces
-{
-    public class SpinnerDisc : CircularContainer
-    {
-        public override bool Contains(Vector2 screenSpacePos) => true;
-
-        protected Sprite Disc;
-
-        public SRGBColour DiscColour
-        {
-            get { return Disc.Colour; }
-            set { Disc.Colour = value; }
-        }
-
-        private Color4 completeColour;
-
-        [BackgroundDependencyLoader]
-        private void load(OsuColour colours)
-        {
-            completeColour = colours.YellowLight.Opacity(0.8f);
-        }
-
-        private class SpinnerBorder : Container
-        {
-            public SpinnerBorder()
-            {
-                Origin = Anchor.Centre;
-                Anchor = Anchor.Centre;
-                RelativeSizeAxes = Axes.Both;
-
-                layout();
-            }
-
-            private int lastLayoutDotCount;
-            private void layout()
-            {
-                int count = (int)(MathHelper.Pi * ScreenSpaceDrawQuad.Width / 9);
-
-                if (count == lastLayoutDotCount) return;
-
-                lastLayoutDotCount = count;
-
-                while (Children.Count() < count)
-                {
-                    Add(new CircularContainer
-                    {
-                        Colour = Color4.White,
-                        RelativePositionAxes = Axes.Both,
-                        Origin = Anchor.Centre,
-                        Size = new Vector2(1 / ScreenSpaceDrawQuad.Width * 2000),
-                        Children = new[]
-                        {
-                            new Box
-                            {
-                                Origin = Anchor.Centre,
-                                Anchor = Anchor.Centre,
-                                RelativeSizeAxes = Axes.Both,
-                            }
-                        }
-                    });
-                }
-
-                var size = new Vector2(1 / ScreenSpaceDrawQuad.Width * 2000);
-
-                int i = 0;
-                foreach (var d in Children)
-                {
-                    d.Size = size;
-                    d.Position = new Vector2(
-                        0.5f + (float)Math.Sin((float)i / count * 2 * MathHelper.Pi) / 2,
-                        0.5f + (float)Math.Cos((float)i / count * 2 * MathHelper.Pi) / 2
-                    );
-
-                    i++;
-                }
-            }
-
-            protected override void Update()
-            {
-                base.Update();
-                layout();
-            }
-        }
-
-        public SpinnerDisc()
-        {
-            RelativeSizeAxes = Axes.Both;
-
-            Children = new Drawable[]
-            {
-                Disc = new Box
-                {
-                    Origin = Anchor.Centre,
-                    Anchor = Anchor.Centre,
-                    RelativeSizeAxes = Axes.Both,
-                    Alpha = 0.2f,
-                },
-                new SpinnerBorder()
-            };
-        }
-
-        private bool tracking;
-        public bool Tracking
-        {
-            get { return tracking; }
-            set
-            {
-                if (value == tracking) return;
-
-                tracking = value;
-
-                Disc.FadeTo(tracking ? 0.5f : 0.2f, 100);
-            }
-        }
-
-        private bool complete;
-        public bool Complete
-        {
-            get { return complete; }
-            set
-            {
-                if (value == complete) return;
-
-                complete = value;
-
-                Disc.FadeColour(completeColour, 200);
-
-                updateCompleteTick();
-            }
-        }
-
-        protected override bool OnMouseDown(InputState state, MouseDownEventArgs args)
-        {
-            Tracking = true;
-            return base.OnMouseDown(state, args);
-        }
-
-        protected override bool OnMouseUp(InputState state, MouseUpEventArgs args)
-        {
-            Tracking = false;
-            return base.OnMouseUp(state, args);
-        }
-
-        protected override bool OnMouseMove(InputState state)
-        {
-            Tracking |= state.Mouse.HasMainButtonPressed;
-            mousePosition = state.Mouse.Position;
-            return base.OnMouseMove(state);
-        }
-
-        private Vector2 mousePosition;
-
-        private float lastAngle;
-        private float currentRotation;
-        public float RotationAbsolute;
-
-        private int completeTick;
-
-        private bool updateCompleteTick() => completeTick != (completeTick = (int)(RotationAbsolute / 360));
-
-        protected override void Update()
-        {
-            base.Update();
-
-            var thisAngle = -(float)MathHelper.RadiansToDegrees(Math.Atan2(mousePosition.X - DrawSize.X / 2, mousePosition.Y - DrawSize.Y / 2));
-            if (tracking)
-            {
-                if (thisAngle - lastAngle > 180)
-                    lastAngle += 360;
-                else if (lastAngle - thisAngle > 180)
-                    lastAngle -= 360;
-
-                currentRotation += thisAngle - lastAngle;
-                RotationAbsolute += Math.Abs(thisAngle - lastAngle);
-            }
-            lastAngle = thisAngle;
-
-            if (Complete && updateCompleteTick())
-            {
-                Disc.Flush(flushType: typeof(TransformAlpha));
-                Disc.FadeTo(0.75f, 30, EasingTypes.OutExpo);
-                Disc.Delay(30);
-                Disc.FadeTo(0.5f, 250, EasingTypes.OutQuint);
-            }
-
-            RotateTo(currentRotation, 100, EasingTypes.OutExpo);
-        }
-    }
-}

osu.Game.Modes.Osu/Objects/HitObjectType.cs

@@ -1,13 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-namespace osu.Game.Modes.Osu.Objects
-{
-    public enum HitObjectType
-    {
-        Circle,
-        Slider,
-        Spinner,
-        SliderTick
-    }
-}

osu.Game.Modes.Osu/Objects/OsuHitObjectDifficulty.cs

@@ -1,201 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using OpenTK;
-using System;
-using System.Diagnostics;
-using System.Linq;
-
-namespace osu.Game.Modes.Osu.Objects
-{
-    internal class OsuHitObjectDifficulty
-    {
-        /// <summary>
-        /// Factor by how much speed / aim strain decays per second.
-        /// </summary>
-        /// <remarks>
-        /// These values are results of tweaking a lot and taking into account general feedback.
-        /// Opinionated observation: Speed is easier to maintain than accurate jumps.
-        /// </remarks>
-        internal static readonly double[] DECAY_BASE = { 0.3, 0.15 };
-
-        /// <summary>
-        /// Pseudo threshold values to distinguish between "singles" and "streams"
-        /// </summary>
-        /// <remarks>
-        ///  Of course the border can not be defined clearly, therefore the algorithm has a smooth transition between those values.
-        ///  They also are based on tweaking and general feedback.
-        /// </remarks>
-        private const double stream_spacing_threshold = 110,
-                             single_spacing_threshold = 125;
-
-        /// <summary>
-        /// Scaling values for weightings to keep aim and speed difficulty in balance.
-        /// </summary>
-        /// <remarks>
-        /// Found from testing a very large map pool (containing all ranked maps) and keeping the average values the same.
-        /// </remarks>
-        private static readonly double[] spacing_weight_scaling = { 1400, 26.25 };
-
-        /// <summary>
-        /// Almost the normed diameter of a circle (104 osu pixel). That is -after- position transforming.
-        /// </summary>
-        private const double almost_diameter = 90;
-
-        internal OsuHitObject BaseHitObject;
-        internal double[] Strains = { 1, 1 };
-
-        internal int MaxCombo = 1;
-
-        private float scalingFactor;
-        private float lazySliderLength;
-
-        private Vector2 startPosition;
-        private Vector2 endPosition;
-
-        internal OsuHitObjectDifficulty(OsuHitObject baseHitObject)
-        {
-            BaseHitObject = baseHitObject;
-            float circleRadius = baseHitObject.Scale * 64;
-
-            Slider slider = BaseHitObject as Slider;
-            if (slider != null)
-                MaxCombo += slider.Ticks.Count();
-
-            // We will scale everything by this factor, so we can assume a uniform CircleSize among beatmaps.
-            scalingFactor = 52.0f / circleRadius;
-            if (circleRadius < 30)
-            {
-                float smallCircleBonus = Math.Min(30.0f - circleRadius, 5.0f) / 50.0f;
-                scalingFactor *= 1.0f + smallCircleBonus;
-            }
-
-            lazySliderLength = 0;
-            startPosition = baseHitObject.StackedPosition;
-
-            // Calculate approximation of lazy movement on the slider
-            if (slider != null)
-            {
-                float sliderFollowCircleRadius = circleRadius * 3; // Not sure if this is correct, but here we do not need 100% exact values. This comes pretty darn close in my tests.
-
-                // For simplifying this step we use actual osu! coordinates and simply scale the length, that we obtain by the ScalingFactor later
-                Vector2 cursorPos = startPosition;
-
-                Action<Vector2> addSliderVertex = delegate (Vector2 pos)
-                {
-                    Vector2 difference = pos - cursorPos;
-                    float distance = difference.Length;
-
-                    // Did we move away too far?
-                    if (distance > sliderFollowCircleRadius)
-                    {
-                        // Yep, we need to move the cursor
-                        difference.Normalize(); // Obtain the direction of difference. We do no longer need the actual difference
-                        distance -= sliderFollowCircleRadius;
-                        cursorPos += difference * distance; // We move the cursor just as far as needed to stay in the follow circle
-                        lazySliderLength += distance;
-                    }
-                };
-
-                // Actual computation of the first lazy curve
-                foreach (var tick in slider.Ticks)
-                    addSliderVertex(tick.StackedPosition);
-
-                addSliderVertex(baseHitObject.StackedEndPosition);
-
-                lazySliderLength *= scalingFactor;
-                endPosition = cursorPos;
-            }
-            // We have a normal HitCircle or a spinner
-            else
-                endPosition = startPosition;
-        }
-
-        internal void CalculateStrains(OsuHitObjectDifficulty previousHitObject, double timeRate)
-        {
-            calculateSpecificStrain(previousHitObject, OsuDifficultyCalculator.DifficultyType.Speed, timeRate);
-            calculateSpecificStrain(previousHitObject, OsuDifficultyCalculator.DifficultyType.Aim, timeRate);
-        }
-
-        // Caution: The subjective values are strong with this one
-        private static double spacingWeight(double distance, OsuDifficultyCalculator.DifficultyType type)
-        {
-            switch (type)
-            {
-                case OsuDifficultyCalculator.DifficultyType.Speed:
-                    if (distance > single_spacing_threshold)
-                        return 2.5;
-                    else if (distance > stream_spacing_threshold)
-                        return 1.6 + 0.9 * (distance - stream_spacing_threshold) / (single_spacing_threshold - stream_spacing_threshold);
-                    else if (distance > almost_diameter)
-                        return 1.2 + 0.4 * (distance - almost_diameter) / (stream_spacing_threshold - almost_diameter);
-                    else if (distance > almost_diameter / 2)
-                        return 0.95 + 0.25 * (distance - almost_diameter / 2) / (almost_diameter / 2);
-                    else
-                        return 0.95;
-
-                case OsuDifficultyCalculator.DifficultyType.Aim:
-                    return Math.Pow(distance, 0.99);
-            }
-
-            Debug.Assert(false, "Invalid osu difficulty hit object type.");
-            return 0;
-        }
-
-        private void calculateSpecificStrain(OsuHitObjectDifficulty previousHitObject, OsuDifficultyCalculator.DifficultyType type, double timeRate)
-        {
-            double addition = 0;
-            double timeElapsed = (BaseHitObject.StartTime - previousHitObject.BaseHitObject.StartTime) / timeRate;
-            double decay = Math.Pow(DECAY_BASE[(int)type], timeElapsed / 1000);
-
-            if (BaseHitObject.Type == HitObjectType.Spinner)
-            {
-                // Do nothing for spinners
-            }
-            else if (BaseHitObject.Type == HitObjectType.Slider)
-            {
-                switch (type)
-                {
-                    case OsuDifficultyCalculator.DifficultyType.Speed:
-
-                        // For speed strain we treat the whole slider as a single spacing entity, since "Speed" is about how hard it is to click buttons fast.
-                        // The spacing weight exists to differentiate between being able to easily alternate or having to single.
-                        addition =
-                            spacingWeight(previousHitObject.lazySliderLength +
-                                          DistanceTo(previousHitObject), type) *
-                            spacing_weight_scaling[(int)type];
-
-                        break;
-                    case OsuDifficultyCalculator.DifficultyType.Aim:
-
-                        // For Aim strain we treat each slider segment and the jump after the end of the slider as separate jumps, since movement-wise there is no difference
-                        // to multiple jumps.
-                        addition =
-                            (
-                                spacingWeight(previousHitObject.lazySliderLength, type) +
-                                spacingWeight(DistanceTo(previousHitObject), type)
-                            ) *
-                            spacing_weight_scaling[(int)type];
-
-                        break;
-                }
-            }
-            else if (BaseHitObject.Type == HitObjectType.Circle)
-            {
-                addition = spacingWeight(DistanceTo(previousHitObject), type) * spacing_weight_scaling[(int)type];
-            }
-
-            // Scale addition by the time, that elapsed. Filter out HitObjects that are too close to be played anyway to avoid crazy values by division through close to zero.
-            // You will never find maps that require this amongst ranked maps.
-            addition /= Math.Max(timeElapsed, 50);
-
-            Strains[(int)type] = previousHitObject.Strains[(int)type] * decay + addition;
-        }
-
-        internal double DistanceTo(OsuHitObjectDifficulty other)
-        {
-            // Scale the distance by circle size.
-            return (startPosition - other.endPosition).Length * scalingFactor;
-        }
-    }
-}

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

@@ -1,111 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using OpenTK;
-using osu.Game.Beatmaps;
-using osu.Game.Beatmaps.Samples;
-using osu.Game.Beatmaps.Timing;
-using osu.Game.Modes.Objects.Types;
-using System;
-using System.Collections.Generic;
-using osu.Game.Modes.Objects;
-
-namespace osu.Game.Modes.Osu.Objects
-{
-    public class Slider : OsuHitObject, IHasCurve
-    {
-        public IHasCurve CurveObject { get; set; }
-
-        public SliderCurve Curve => CurveObject.Curve;
-
-        public double EndTime => StartTime + RepeatCount * Curve.Distance / Velocity;
-        public double Duration => EndTime - StartTime;
-
-        public override Vector2 EndPosition => PositionAt(1);
-
-        public Vector2 PositionAt(double progress) => CurveObject.PositionAt(progress);
-        public double ProgressAt(double progress) => CurveObject.ProgressAt(progress);
-        public int RepeatAt(double progress) => CurveObject.RepeatAt(progress);
-
-        public List<Vector2> ControlPoints => CurveObject.ControlPoints;
-        public CurveType CurveType => CurveObject.CurveType;
-        public double Distance => CurveObject.Distance;
-
-        public int RepeatCount => CurveObject.RepeatCount;
-
-        private int stackHeight;
-        public override int StackHeight
-        {
-            get { return stackHeight; }
-            set
-            {
-                stackHeight = value;
-                Curve.Offset = StackOffset;
-            }
-        }
-
-        public double Velocity;
-        public double TickDistance;
-
-        public override void SetDefaultsFromBeatmap(Beatmap<OsuHitObject> beatmap)
-        {
-            base.SetDefaultsFromBeatmap(beatmap);
-
-            var baseDifficulty = beatmap.BeatmapInfo.BaseDifficulty;
-
-            ControlPoint overridePoint;
-            ControlPoint timingPoint = beatmap.TimingPointAt(StartTime, out overridePoint);
-            var velocityAdjustment = overridePoint?.VelocityAdjustment ?? 1;
-            var baseVelocity = 100 * baseDifficulty.SliderMultiplier / velocityAdjustment;
-
-            Velocity = baseVelocity / timingPoint.BeatLength;
-            TickDistance = baseVelocity / baseDifficulty.SliderTickRate;
-        }
-
-        public IEnumerable<SliderTick> Ticks
-        {
-            get
-            {
-                if (TickDistance == 0) yield break;
-
-                var length = Curve.Distance;
-                var tickDistance = Math.Min(TickDistance, length);
-                var repeatDuration = length / Velocity;
-
-                var minDistanceFromEnd = Velocity * 0.01;
-
-                for (var repeat = 0; repeat < RepeatCount; repeat++)
-                {
-                    var repeatStartTime = StartTime + repeat * repeatDuration;
-                    var reversed = repeat % 2 == 1;
-
-                    for (var d = tickDistance; d <= length; d += tickDistance)
-                    {
-                        if (d > length - minDistanceFromEnd)
-                            break;
-
-                        var distanceProgress = d / length;
-                        var timeProgress = reversed ? 1 - distanceProgress : distanceProgress;
-
-                        yield return new SliderTick
-                        {
-                            RepeatIndex = repeat,
-                            StartTime = repeatStartTime + timeProgress * repeatDuration,
-                            Position = Curve.PositionAt(distanceProgress),
-                            StackHeight = StackHeight,
-                            Scale = Scale,
-                            ComboColour = ComboColour,
-                            Sample = new HitSampleInfo
-                            {
-                                Type = SampleType.None,
-                                Set = SampleSet.Soft,
-                            },
-                        };
-                    }
-                }
-            }
-        }
-
-        public override HitObjectType Type => HitObjectType.Slider;
-    }
-}

osu.Game.Modes.Osu/OsuAutoReplay.cs

@@ -1,306 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using OpenTK;
-using osu.Framework.Graphics.Transforms;
-using osu.Framework.MathUtils;
-using osu.Game.Beatmaps;
-using osu.Game.Modes.Osu.Objects;
-using osu.Game.Modes.Osu.Objects.Drawables;
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using osu.Game.Modes.Objects.Types;
-
-namespace osu.Game.Modes.Osu
-{
-    public class OsuAutoReplay : LegacyReplay
-    {
-        private static readonly Vector2 spinner_centre = new Vector2(256, 192);
-
-        private const float spin_radius = 50;
-
-        private Beatmap<OsuHitObject> beatmap;
-
-        public OsuAutoReplay(Beatmap<OsuHitObject> beatmap)
-        {
-            this.beatmap = beatmap;
-
-            createAutoReplay();
-        }
-
-        internal class LegacyReplayFrameComparer : IComparer<LegacyReplayFrame>
-        {
-            public int Compare(LegacyReplayFrame f1, LegacyReplayFrame f2)
-            {
-                return f1.Time.CompareTo(f2.Time);
-            }
-        }
-
-        private static IComparer<LegacyReplayFrame> replayFrameComparer = new LegacyReplayFrameComparer();
-
-        private int findInsertionIndex(LegacyReplayFrame frame)
-        {
-            int index = Frames.BinarySearch(frame, replayFrameComparer);
-
-            if (index < 0)
-            {
-                index = ~index;
-            }
-            else
-            {
-                // Go to the first index which is actually bigger
-                while (index < Frames.Count && frame.Time == Frames[index].Time)
-                {
-                    ++index;
-                }
-            }
-
-            return index;
-        }
-
-        private void addFrameToReplay(LegacyReplayFrame frame) => Frames.Insert(findInsertionIndex(frame), frame);
-
-        private static Vector2 circlePosition(double t, double radius) => new Vector2((float)(Math.Cos(t) * radius), (float)(Math.Sin(t) * radius));
-
-        private double applyModsToTime(double v) => v;
-        private double applyModsToRate(double v) => v;
-
-        public bool DelayedMovements; // ModManager.CheckActive(Mods.Relax2);
-
-        private void createAutoReplay()
-        {
-            int buttonIndex = 0;
-
-            EasingTypes preferredEasing = DelayedMovements ? EasingTypes.InOutCubic : EasingTypes.Out;
-
-            addFrameToReplay(new LegacyReplayFrame(-100000, 256, 500, LegacyButtonState.None));
-            addFrameToReplay(new LegacyReplayFrame(beatmap.HitObjects[0].StartTime - 1500, 256, 500, LegacyButtonState.None));
-            addFrameToReplay(new LegacyReplayFrame(beatmap.HitObjects[0].StartTime - 1000, 256, 192, LegacyButtonState.None));
-
-            // We are using ApplyModsToRate and not ApplyModsToTime to counteract the speed up / slow down from HalfTime / DoubleTime so that we remain at a constant framerate of 60 fps.
-            float frameDelay = (float)applyModsToRate(1000.0 / 60.0);
-
-            // Already superhuman, but still somewhat realistic
-            int reactionTime = (int)applyModsToRate(100);
-
-
-            for (int i = 0; i < beatmap.HitObjects.Count; i++)
-            {
-                OsuHitObject h = beatmap.HitObjects[i];
-
-                //if (h.EndTime < InputManager.ReplayStartTime)
-                //{
-                //    h.IsHit = true;
-                //    continue;
-                //}
-
-                int endDelay = h is Spinner ? 1 : 0;
-
-                if (DelayedMovements && i > 0)
-                {
-                    OsuHitObject last = beatmap.HitObjects[i - 1];
-
-                    double endTime = (last as IHasEndTime)?.EndTime ?? last.StartTime;
-
-                    //Make the cursor stay at a hitObject as long as possible (mainly for autopilot).
-                    if (h.StartTime - h.HitWindowFor(OsuScoreResult.Miss) > endTime + h.HitWindowFor(OsuScoreResult.Hit50) + 50)
-                    {
-                        if (!(last is Spinner) && h.StartTime - endTime < 1000) addFrameToReplay(new LegacyReplayFrame(endTime + h.HitWindowFor(OsuScoreResult.Hit50), last.EndPosition.X, last.EndPosition.Y, LegacyButtonState.None));
-                        if (!(h is Spinner)) addFrameToReplay(new LegacyReplayFrame(h.StartTime - h.HitWindowFor(OsuScoreResult.Miss), h.Position.X, h.Position.Y, LegacyButtonState.None));
-                    }
-                    else if (h.StartTime - h.HitWindowFor(OsuScoreResult.Hit50) > endTime + h.HitWindowFor(OsuScoreResult.Hit50) + 50)
-                    {
-                        if (!(last is Spinner) && h.StartTime - endTime < 1000) addFrameToReplay(new LegacyReplayFrame(endTime + h.HitWindowFor(OsuScoreResult.Hit50), last.EndPosition.X, last.EndPosition.Y, LegacyButtonState.None));
-                        if (!(h is Spinner)) addFrameToReplay(new LegacyReplayFrame(h.StartTime - h.HitWindowFor(OsuScoreResult.Hit50), h.Position.X, h.Position.Y, LegacyButtonState.None));
-                    }
-                    else if (h.StartTime - h.HitWindowFor(OsuScoreResult.Hit100) > endTime + h.HitWindowFor(OsuScoreResult.Hit100) + 50)
-                    {
-                        if (!(last is Spinner) && h.StartTime - endTime < 1000) addFrameToReplay(new LegacyReplayFrame(endTime + h.HitWindowFor(OsuScoreResult.Hit100), last.EndPosition.X, last.EndPosition.Y, LegacyButtonState.None));
-                        if (!(h is Spinner)) addFrameToReplay(new LegacyReplayFrame(h.StartTime - h.HitWindowFor(OsuScoreResult.Hit100), h.Position.X, h.Position.Y, LegacyButtonState.None));
-                    }
-                }
-
-
-                Vector2 targetPosition = h.Position;
-                EasingTypes easing = preferredEasing;
-                float spinnerDirection = -1;
-
-                if (h is Spinner)
-                {
-                    targetPosition.X = Frames[Frames.Count - 1].MouseX;
-                    targetPosition.Y = Frames[Frames.Count - 1].MouseY;
-
-                    Vector2 difference = spinner_centre - targetPosition;
-
-                    float differenceLength = difference.Length;
-                    float newLength = (float)Math.Sqrt(differenceLength * differenceLength - spin_radius * spin_radius);
-
-                    if (differenceLength > spin_radius)
-                    {
-                        float angle = (float)Math.Asin(spin_radius / differenceLength);
-
-                        if (angle > 0)
-                        {
-                            spinnerDirection = -1;
-                        }
-                        else
-                        {
-                            spinnerDirection = 1;
-                        }
-
-                        difference.X = difference.X * (float)Math.Cos(angle) - difference.Y * (float)Math.Sin(angle);
-                        difference.Y = difference.X * (float)Math.Sin(angle) + difference.Y * (float)Math.Cos(angle);
-
-                        difference.Normalize();
-                        difference *= newLength;
-
-                        targetPosition += difference;
-
-                        easing = EasingTypes.In;
-                    }
-                    else if (difference.Length > 0)
-                    {
-                        targetPosition = spinner_centre - difference * (spin_radius / difference.Length);
-                    }
-                    else
-                    {
-                        targetPosition = spinner_centre + new Vector2(0, -spin_radius);
-                    }
-                }
-
-
-                // Do some nice easing for cursor movements
-                if (Frames.Count > 0)
-                {
-                    LegacyReplayFrame lastFrame = Frames[Frames.Count - 1];
-
-                    // Wait until Auto could "see and react" to the next note.
-                    double waitTime = h.StartTime - Math.Max(0.0, DrawableOsuHitObject.TIME_PREEMPT - reactionTime);
-                    if (waitTime > lastFrame.Time)
-                    {
-                        lastFrame = new LegacyReplayFrame(waitTime, lastFrame.MouseX, lastFrame.MouseY, lastFrame.ButtonState);
-                        addFrameToReplay(lastFrame);
-                    }
-
-                    Vector2 lastPosition = new Vector2(lastFrame.MouseX, lastFrame.MouseY);
-
-                    double timeDifference = applyModsToTime(h.StartTime - lastFrame.Time);
-
-                    // Only "snap" to hitcircles if they are far enough apart. As the time between hitcircles gets shorter the snapping threshold goes up.
-                    if (timeDifference > 0 && // Sanity checks
-                        ((lastPosition - targetPosition).Length > h.Radius * (1.5 + 100.0 / timeDifference) || // Either the distance is big enough
-                        timeDifference >= 266)) // ... or the beats are slow enough to tap anyway.
-                    {
-                        // Perform eased movement
-                        for (double time = lastFrame.Time + frameDelay; time < h.StartTime; time += frameDelay)
-                        {
-                            Vector2 currentPosition = Interpolation.ValueAt(time, lastPosition, targetPosition, lastFrame.Time, h.StartTime, easing);
-                            addFrameToReplay(new LegacyReplayFrame((int)time, currentPosition.X, currentPosition.Y, lastFrame.ButtonState));
-                        }
-
-                        buttonIndex = 0;
-                    }
-                    else
-                    {
-                        buttonIndex++;
-                    }
-                }
-
-                LegacyButtonState button = buttonIndex % 2 == 0 ? LegacyButtonState.Left1 : LegacyButtonState.Right1;
-
-                double hEndTime = (h as IHasEndTime)?.EndTime ?? h.StartTime;
-
-                LegacyReplayFrame newFrame = new LegacyReplayFrame(h.StartTime, targetPosition.X, targetPosition.Y, button);
-                LegacyReplayFrame endFrame = new LegacyReplayFrame(hEndTime + endDelay, h.EndPosition.X, h.EndPosition.Y, LegacyButtonState.None);
-
-                // Decrement because we want the previous frame, not the next one
-                int index = findInsertionIndex(newFrame) - 1;
-
-                // Do we have a previous frame? No need to check for < replay.Count since we decremented!
-                if (index >= 0)
-                {
-                    LegacyReplayFrame previousFrame = Frames[index];
-                    var previousButton = previousFrame.ButtonState;
-
-                    // If a button is already held, then we simply alternate
-                    if (previousButton != LegacyButtonState.None)
-                    {
-                        Debug.Assert(previousButton != (LegacyButtonState.Left1 | LegacyButtonState.Right1));
-
-                        // Force alternation if we have the same button. Otherwise we can just keep the naturally to us assigned button.
-                        if (previousButton == button)
-                        {
-                            button = (LegacyButtonState.Left1 | LegacyButtonState.Right1) & ~button;
-                            newFrame.SetButtonStates(button);
-                        }
-
-                        // We always follow the most recent slider / spinner, so remove any other frames that occur while it exists.
-                        int endIndex = findInsertionIndex(endFrame);
-
-                        if (index < Frames.Count - 1)
-                            Frames.RemoveRange(index + 1, Math.Max(0, endIndex - (index + 1)));
-
-                        // After alternating we need to keep holding the other button in the future rather than the previous one.
-                        for (int j = index + 1; j < Frames.Count; ++j)
-                        {
-                            // Don't affect frames which stop pressing a button!
-                            if (j < Frames.Count - 1 || Frames[j].ButtonState == previousButton)
-                                Frames[j].SetButtonStates(button);
-                        }
-                    }
-                }
-
-                addFrameToReplay(newFrame);
-
-                // We add intermediate frames for spinning / following a slider here.
-                if (h is Spinner)
-                {
-                    Spinner s = h as Spinner;
-
-                    Vector2 difference = targetPosition - spinner_centre;
-
-                    float radius = difference.Length;
-                    float angle = radius == 0 ? 0 : (float)Math.Atan2(difference.Y, difference.X);
-
-                    double t;
-
-                    for (double j = h.StartTime + frameDelay; j < s.EndTime; j += frameDelay)
-                    {
-                        t = applyModsToTime(j - h.StartTime) * spinnerDirection;
-
-                        Vector2 pos = spinner_centre + circlePosition(t / 20 + angle, spin_radius);
-                        addFrameToReplay(new LegacyReplayFrame((int)j, pos.X, pos.Y, button));
-                    }
-
-                    t = applyModsToTime(s.EndTime - h.StartTime) * spinnerDirection;
-                    Vector2 endPosition = spinner_centre + circlePosition(t / 20 + angle, spin_radius);
-
-                    addFrameToReplay(new LegacyReplayFrame(s.EndTime, endPosition.X, endPosition.Y, button));
-
-                    endFrame.MouseX = endPosition.X;
-                    endFrame.MouseY = endPosition.Y;
-                }
-                else if (h is Slider)
-                {
-                    Slider s = h as Slider;
-
-                    for (double j = frameDelay; j < s.Duration; j += frameDelay)
-                    {
-                        Vector2 pos = s.PositionAt(j / s.Duration);
-                        addFrameToReplay(new LegacyReplayFrame(h.StartTime + j, pos.X, pos.Y, button));
-                    }
-
-                    addFrameToReplay(new LegacyReplayFrame(s.EndTime, s.EndPosition.X, s.EndPosition.Y, button));
-                }
-
-                // We only want to let go of our button if we are at the end of the current replay. Otherwise something is still going on after us so we need to keep the button pressed!
-                if (Frames[Frames.Count - 1].Time <= endFrame.Time)
-                    addFrameToReplay(endFrame);
-            }
-
-            //Player.currentScore.Replay = InputManager.ReplayScore.Replay;
-            //Player.currentScore.PlayerName = "osu!";
-        }
-    }
-}

osu.Game.Modes.Osu/OsuDifficultyCalculator.cs

@@ -1,192 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Game.Beatmaps;
-using osu.Game.Modes.Osu.Beatmaps;
-using osu.Game.Modes.Osu.Objects;
-using System;
-using System.Collections.Generic;
-
-namespace osu.Game.Modes.Osu
-{
-    public class OsuDifficultyCalculator : DifficultyCalculator<OsuHitObject>
-    {
-        private const double star_scaling_factor = 0.0675;
-        private const double extreme_scaling_factor = 0.5;
-
-        /// <summary>
-        /// HitObjects are stored as a member variable.
-        /// </summary>
-        internal List<OsuHitObjectDifficulty> DifficultyHitObjects = new List<OsuHitObjectDifficulty>();
-
-        public OsuDifficultyCalculator(Beatmap beatmap) : base(beatmap)
-        {
-        }
-
-        protected override void PreprocessHitObjects()
-        {
-            foreach (var h in Objects)
-                if (h.Type == HitObjectType.Slider)
-                    ((Slider)h).Curve.Calculate();
-        }
-
-        protected override double CalculateInternal(Dictionary<string, string> categoryDifficulty)
-        {
-            // Fill our custom DifficultyHitObject class, that carries additional information
-            DifficultyHitObjects.Clear();
-
-            foreach (var hitObject in Objects)
-                DifficultyHitObjects.Add(new OsuHitObjectDifficulty(hitObject));
-
-            // Sort DifficultyHitObjects by StartTime of the HitObjects - just to make sure.
-            DifficultyHitObjects.Sort((a, b) => a.BaseHitObject.StartTime.CompareTo(b.BaseHitObject.StartTime));
-
-            if (!CalculateStrainValues()) return 0;
-
-            double speedDifficulty = CalculateDifficulty(DifficultyType.Speed);
-            double aimDifficulty = CalculateDifficulty(DifficultyType.Aim);
-
-            // OverallDifficulty is not considered in this algorithm and neither is HpDrainRate. That means, that in this form the algorithm determines how hard it physically is
-            // to play the map, assuming, that too much of an error will not lead to a death.
-            // It might be desirable to include OverallDifficulty into map difficulty, but in my personal opinion it belongs more to the weighting of the actual peformance
-            // and is superfluous in the beatmap difficulty rating.
-            // If it were to be considered, then I would look at the hit window of normal HitCircles only, since Sliders and Spinners are (almost) "free" 300s and take map length
-            // into account as well.
-
-            // The difficulty can be scaled by any desired metric.
-            // In osu!tp it gets squared to account for the rapid increase in difficulty as the limit of a human is approached. (Of course it also gets scaled afterwards.)
-            // It would not be suitable for a star rating, therefore:
-
-            // The following is a proposal to forge a star rating from 0 to 5. It consists of taking the square root of the difficulty, since by simply scaling the easier
-            // 5-star maps would end up with one star.
-            double speedStars = Math.Sqrt(speedDifficulty) * star_scaling_factor;
-            double aimStars = Math.Sqrt(aimDifficulty) * star_scaling_factor;
-
-            if (categoryDifficulty != null)
-            {
-                categoryDifficulty.Add("Aim", aimStars.ToString("0.00"));
-                categoryDifficulty.Add("Speed", speedStars.ToString("0.00"));
-
-                double hitWindow300 = 30/*HitObjectManager.HitWindow300*/ / TimeRate;
-                double preEmpt = 450/*HitObjectManager.PreEmpt*/ / TimeRate;
-
-                categoryDifficulty.Add("OD", (-(hitWindow300 - 80.0) / 6.0).ToString("0.00"));
-                categoryDifficulty.Add("AR", (preEmpt > 1200.0 ? -(preEmpt - 1800.0) / 120.0 : -(preEmpt - 1200.0) / 150.0 + 5.0).ToString("0.00"));
-
-                int maxCombo = 0;
-                foreach (OsuHitObjectDifficulty hitObject in DifficultyHitObjects)
-                    maxCombo += hitObject.MaxCombo;
-
-                categoryDifficulty.Add("Max combo", maxCombo.ToString());
-            }
-
-            // Again, from own observations and from the general opinion of the community a map with high speed and low aim (or vice versa) difficulty is harder,
-            // than a map with mediocre difficulty in both. Therefore we can not just add both difficulties together, but will introduce a scaling that favors extremes.
-            double starRating = speedStars + aimStars + Math.Abs(speedStars - aimStars) * extreme_scaling_factor;
-            // Another approach to this would be taking Speed and Aim separately to a chosen power, which again would be equivalent. This would be more convenient if
-            // the hit window size is to be considered as well.
-
-            // Note: The star rating is tuned extremely tight! Airman (/b/104229) and Freedom Dive (/b/126645), two of the hardest ranked maps, both score ~4.66 stars.
-            // Expect the easier kind of maps that officially get 5 stars to obtain around 2 by this metric. The tutorial still scores about half a star.
-            // Tune by yourself as you please. ;)
-
-            return starRating;
-        }
-
-        protected bool CalculateStrainValues()
-        {
-            // Traverse hitObjects in pairs to calculate the strain value of NextHitObject from the strain value of CurrentHitObject and environment.
-            using (List<OsuHitObjectDifficulty>.Enumerator hitObjectsEnumerator = DifficultyHitObjects.GetEnumerator())
-            {
-
-                if (!hitObjectsEnumerator.MoveNext()) return false;
-
-                OsuHitObjectDifficulty current = hitObjectsEnumerator.Current;
-
-                // First hitObject starts at strain 1. 1 is the default for strain values, so we don't need to set it here. See DifficultyHitObject.
-                while (hitObjectsEnumerator.MoveNext())
-                {
-                    var next = hitObjectsEnumerator.Current;
-                    next?.CalculateStrains(current, TimeRate);
-                    current = next;
-                }
-
-                return true;
-            }
-        }
-
-        /// <summary>
-        /// In milliseconds. For difficulty calculation we will only look at the highest strain value in each time interval of size STRAIN_STEP.
-        /// This is to eliminate higher influence of stream over aim by simply having more HitObjects with high strain.
-        /// The higher this value, the less strains there will be, indirectly giving long beatmaps an advantage.
-        /// </summary>
-        protected const double STRAIN_STEP = 400;
-
-        /// <summary>
-        /// The weighting of each strain value decays to this number * it's previous value
-        /// </summary>
-        protected const double DECAY_WEIGHT = 0.9;
-
-        protected double CalculateDifficulty(DifficultyType type)
-        {
-            double actualStrainStep = STRAIN_STEP * TimeRate;
-
-            // Find the highest strain value within each strain step
-            List<double> highestStrains = new List<double>();
-            double intervalEndTime = actualStrainStep;
-            double maximumStrain = 0; // We need to keep track of the maximum strain in the current interval
-
-            OsuHitObjectDifficulty previousHitObject = null;
-            foreach (OsuHitObjectDifficulty hitObject in DifficultyHitObjects)
-            {
-                // While we are beyond the current interval push the currently available maximum to our strain list
-                while (hitObject.BaseHitObject.StartTime > intervalEndTime)
-                {
-                    highestStrains.Add(maximumStrain);
-
-                    // The maximum strain of the next interval is not zero by default! We need to take the last hitObject we encountered, take its strain and apply the decay
-                    // until the beginning of the next interval.
-                    if (previousHitObject == null)
-                    {
-                        maximumStrain = 0;
-                    }
-                    else
-                    {
-                        double decay = Math.Pow(OsuHitObjectDifficulty.DECAY_BASE[(int)type], (intervalEndTime - previousHitObject.BaseHitObject.StartTime) / 1000);
-                        maximumStrain = previousHitObject.Strains[(int)type] * decay;
-                    }
-
-                    // Go to the next time interval
-                    intervalEndTime += actualStrainStep;
-                }
-
-                // Obtain maximum strain
-                maximumStrain = Math.Max(hitObject.Strains[(int)type], maximumStrain);
-
-                previousHitObject = hitObject;
-            }
-
-            // Build the weighted sum over the highest strains for each interval
-            double difficulty = 0;
-            double weight = 1;
-            highestStrains.Sort((a, b) => b.CompareTo(a)); // Sort from highest to lowest strain.
-
-            foreach (double strain in highestStrains)
-            {
-                difficulty += weight * strain;
-                weight *= DECAY_WEIGHT;
-            }
-
-            return difficulty;
-        }
-
-        protected override IBeatmapConverter<OsuHitObject> CreateBeatmapConverter() => new OsuBeatmapConverter();
-
-        // Those values are used as array indices. Be careful when changing them!
-        public enum DifficultyType
-        {
-            Speed = 0,
-            Aim,
-        };
-    }
-}

osu.Game.Modes.Osu/OsuKeyConversionInputManager.cs

@@ -1,56 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using System.Linq;
-using osu.Framework.Allocation;
-using osu.Framework.Configuration;
-using osu.Framework.Input;
-using osu.Game.Configuration;
-using osu.Game.Screens.Play;
-using OpenTK.Input;
-using KeyboardState = osu.Framework.Input.KeyboardState;
-using MouseState = osu.Framework.Input.MouseState;
-
-namespace osu.Game.Modes.Osu
-{
-    public class OsuKeyConversionInputManager : KeyConversionInputManager
-    {
-        private bool leftViaKeyboard;
-        private bool rightViaKeyboard;
-        private Bindable<bool> mouseDisabled;
-
-        [BackgroundDependencyLoader]
-        private void load(OsuConfigManager config)
-        {
-            mouseDisabled = config.GetBindable<bool>(OsuConfig.MouseDisableButtons);
-        }
-
-        protected override void TransformState(InputState state)
-        {
-            base.TransformState(state);
-
-            var mouse = state.Mouse as MouseState;
-            var keyboard = state.Keyboard as KeyboardState;
-
-            if (keyboard != null)
-            {
-                leftViaKeyboard = keyboard.Keys.Contains(Key.Z);
-                rightViaKeyboard = keyboard.Keys.Contains(Key.X);
-            }
-
-            if (mouse != null)
-            {
-                if (mouseDisabled.Value)
-                {
-                    mouse.PressedButtons.Remove(MouseButton.Left);
-                    mouse.PressedButtons.Remove(MouseButton.Right);
-                }
-
-                if (leftViaKeyboard)
-                    mouse.PressedButtons.Add(MouseButton.Left);
-                if (rightViaKeyboard)
-                    mouse.PressedButtons.Add(MouseButton.Right);
-            }
-        }
-    }
-}

osu.Game.Modes.Osu/OsuScoreProcessor.cs

@@ -1,49 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Game.Modes.Objects.Drawables;
-using osu.Game.Modes.Osu.Objects.Drawables;
-
-namespace osu.Game.Modes.Osu
-{
-    internal class OsuScoreProcessor : ScoreProcessor
-    {
-        public OsuScoreProcessor(int hitObjectCount = 0)
-            : base(hitObjectCount)
-        {
-            Health.Value = 1;
-            Accuracy.Value = 1;
-        }
-
-        protected override void UpdateCalculations(JudgementInfo judgement)
-        {
-            if (judgement != null)
-            {
-                switch (judgement.Result)
-                {
-                    case HitResult.Hit:
-                        Combo.Value++;
-                        Health.Value += 0.1f;
-                        break;
-                    case HitResult.Miss:
-                        Combo.Value = 0;
-                        Health.Value -= 0.2f;
-                        break;
-                }
-            }
-
-            int score = 0;
-            int maxScore = 0;
-
-            foreach (var judgementInfo in Judgements)
-            {
-                var j = (OsuJudgementInfo)judgementInfo;
-                score += j.ScoreValue;
-                maxScore += j.MaxScoreValue;
-            }
-
-            TotalScore.Value = score;
-            Accuracy.Value = (double)score / maxScore;
-        }
-    }
-}

osu.Game.Modes.Osu/UI/OsuHitRenderer.cs

@@ -1,45 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Game.Beatmaps;
-using osu.Game.Modes.Objects.Drawables;
-using osu.Game.Modes.Osu.Beatmaps;
-using osu.Game.Modes.Osu.Objects;
-using osu.Game.Modes.Osu.Objects.Drawables;
-using osu.Game.Modes.UI;
-using osu.Game.Screens.Play;
-
-namespace osu.Game.Modes.Osu.UI
-{
-    public class OsuHitRenderer : HitRenderer<OsuHitObject>
-    {
-        public OsuHitRenderer(WorkingBeatmap beatmap)
-            : base(beatmap)
-        {
-        }
-
-        protected override IBeatmapConverter<OsuHitObject> CreateBeatmapConverter() => new OsuBeatmapConverter();
-
-        protected override IBeatmapProcessor<OsuHitObject> CreateBeatmapProcessor() => new OsuBeatmapProcessor();
-
-        protected override Playfield<OsuHitObject> CreatePlayfield() => new OsuPlayfield();
-
-        protected override KeyConversionInputManager CreateKeyConversionInputManager() => new OsuKeyConversionInputManager();
-
-        protected override DrawableHitObject<OsuHitObject> GetVisualRepresentation(OsuHitObject h)
-        {
-            var circle = h as HitCircle;
-            if (circle != null)
-                return new DrawableHitCircle(circle);
-
-            var slider = h as Slider;
-            if (slider != null)
-                return new DrawableSlider(slider);
-
-            var spinner = h as Spinner;
-            if (spinner != null)
-                return new DrawableSpinner(spinner);
-            return null;
-        }
-    }
-}

osu.Game.Modes.Osu/packages.config

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<!--
-Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
--->
-<packages>
-  <package id="ppy.OpenTK" version="2.0.50727.1340" targetFramework="net45" />
-</packages>

osu.Game.Modes.Taiko/Beatmaps/TaikoBeatmapConverter.cs

@@ -1,20 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Game.Beatmaps;
-using osu.Game.Modes.Taiko.Objects;
-using System.Collections.Generic;
-
-namespace osu.Game.Modes.Taiko.Beatmaps
-{
-    internal class TaikoBeatmapConverter : IBeatmapConverter<TaikoBaseHit>
-    {
-        public Beatmap<TaikoBaseHit> Convert(Beatmap original)
-        {
-            return new Beatmap<TaikoBaseHit>(original)
-            {
-                HitObjects = new List<TaikoBaseHit>() // Todo: Implement
-            };
-        }
-    }
-}

osu.Game.Modes.Taiko/Beatmaps/TaikoBeatmapProcessor.cs

@@ -1,19 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Game.Beatmaps;
-using osu.Game.Modes.Taiko.Objects;
-
-namespace osu.Game.Modes.Taiko.Beatmaps
-{
-    internal class TaikoBeatmapProcessor : IBeatmapProcessor<TaikoBaseHit>
-    {
-        public void SetDefaults(TaikoBaseHit hitObject, Beatmap<TaikoBaseHit> beatmap)
-        {
-        }
-
-        public void PostProcess(Beatmap<TaikoBaseHit> beatmap)
-        {
-        }
-    }
-}

osu.Game.Modes.Taiko/Objects/Drawable/DrawableTaikoHit.cs

@@ -1,39 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Framework.Allocation;
-using osu.Framework.Graphics;
-using osu.Framework.Graphics.Sprites;
-using osu.Framework.Graphics.Textures;
-using osu.Framework.Graphics.Transforms;
-using OpenTK;
-
-namespace osu.Game.Modes.Taiko.Objects.Drawable
-{
-    internal class DrawableTaikoHit : Sprite
-    {
-        private TaikoBaseHit h;
-
-        public DrawableTaikoHit(TaikoBaseHit h)
-        {
-            this.h = h;
-
-            Origin = Anchor.Centre;
-            Scale = new Vector2(0.2f);
-            RelativePositionAxes = Axes.Both;
-            Position = new Vector2(1.1f, 0.5f);
-        }
-
-        [BackgroundDependencyLoader]
-        private void load(TextureStore textures)
-        {
-            Texture = textures.Get(@"Menu/logo");
-
-            double duration = 0;
-
-            Transforms.Add(new TransformPositionX { StartTime = h.StartTime - 200, EndTime = h.StartTime, StartValue = 1.1f, EndValue = 0.1f });
-            Transforms.Add(new TransformAlpha { StartTime = h.StartTime + duration + 200, EndTime = h.StartTime + duration + 400, StartValue = 1, EndValue = 0 });
-            Expire(true);
-        }
-    }
-}

osu.Game.Modes.Taiko/Objects/TaikoBaseHit.cs

@@ -1,20 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Game.Modes.Objects;
-
-namespace osu.Game.Modes.Taiko.Objects
-{
-    public class TaikoBaseHit : HitObject
-    {
-        public float Scale = 1;
-
-        public TaikoColour Type;
-    }
-
-    public enum TaikoColour
-    {
-        Red,
-        Blue
-    }
-}

osu.Game.Modes.Taiko/OpenTK.dll.config

@@ -1,29 +0,0 @@
-<!--
-Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
--->
-<configuration>
-  <dllmap os="linux" dll="opengl32.dll" target="libGL.so.1"/>
-  <dllmap os="linux" dll="glu32.dll" target="libGLU.so.1"/>
-  <dllmap os="linux" dll="openal32.dll" target="libopenal.so.1"/>
-  <dllmap os="linux" dll="alut.dll" target="libalut.so.0"/>
-  <dllmap os="linux" dll="opencl.dll" target="libOpenCL.so"/>
-  <dllmap os="linux" dll="libX11" target="libX11.so.6"/>
-  <dllmap os="linux" dll="libXi" target="libXi.so.6"/>
-  <dllmap os="linux" dll="SDL2.dll" target="libSDL2-2.0.so.0"/>
-  <dllmap os="osx" dll="opengl32.dll" target="/System/Library/Frameworks/OpenGL.framework/OpenGL"/>
-  <dllmap os="osx" dll="openal32.dll" target="/System/Library/Frameworks/OpenAL.framework/OpenAL" />
-  <dllmap os="osx" dll="alut.dll" target="/System/Library/Frameworks/OpenAL.framework/OpenAL" />
-  <dllmap os="osx" dll="libGLES.dll" target="/System/Library/Frameworks/OpenGLES.framework/OpenGLES" />
-  <dllmap os="osx" dll="libGLESv1_CM.dll" target="/System/Library/Frameworks/OpenGLES.framework/OpenGLES" />
-  <dllmap os="osx" dll="libGLESv2.dll" target="/System/Library/Frameworks/OpenGLES.framework/OpenGLES" />
-  <dllmap os="osx" dll="opencl.dll" target="/System/Library/Frameworks/OpenCL.framework/OpenCL"/>
-  <dllmap os="osx" dll="SDL2.dll" target="libSDL2.dylib"/>
-  <!-- XQuartz compatibility (X11 on Mac) -->
-  <dllmap os="osx" dll="libGL.so.1" target="/usr/X11/lib/libGL.dylib"/>
-  <dllmap os="osx" dll="libX11" target="/usr/X11/lib/libX11.dylib"/>
-  <dllmap os="osx" dll="libXcursor.so.1" target="/usr/X11/lib/libXcursor.dylib"/>
-  <dllmap os="osx" dll="libXi" target="/usr/X11/lib/libXi.dylib"/>
-  <dllmap os="osx" dll="libXinerama" target="/usr/X11/lib/libXinerama.dylib"/>
-  <dllmap os="osx" dll="libXrandr.so.2" target="/usr/X11/lib/libXrandr.dylib"/>
-</configuration>

osu.Game.Modes.Taiko/TaikoDifficultyCalculator.cs

@@ -1,24 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Game.Beatmaps;
-using osu.Game.Modes.Taiko.Beatmaps;
-using osu.Game.Modes.Taiko.Objects;
-using System.Collections.Generic;
-
-namespace osu.Game.Modes.Taiko
-{
-    public class TaikoDifficultyCalculator : DifficultyCalculator<TaikoBaseHit>
-    {
-        public TaikoDifficultyCalculator(Beatmap beatmap) : base(beatmap)
-        {
-        }
-
-        protected override double CalculateInternal(Dictionary<string, string> categoryDifficulty)
-        {
-            return 0;
-        }
-
-        protected override IBeatmapConverter<TaikoBaseHit> CreateBeatmapConverter() => new TaikoBeatmapConverter();
-    }
-}

osu.Game.Modes.Taiko/UI/TaikoHitRenderer.cs

@@ -1,27 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Game.Beatmaps;
-using osu.Game.Modes.Objects.Drawables;
-using osu.Game.Modes.Taiko.Beatmaps;
-using osu.Game.Modes.Taiko.Objects;
-using osu.Game.Modes.UI;
-
-namespace osu.Game.Modes.Taiko.UI
-{
-    public class TaikoHitRenderer : HitRenderer<TaikoBaseHit>
-    {
-        public TaikoHitRenderer(WorkingBeatmap beatmap)
-            : base(beatmap)
-        {
-        }
-
-        protected override IBeatmapConverter<TaikoBaseHit> CreateBeatmapConverter() => new TaikoBeatmapConverter();
-
-        protected override IBeatmapProcessor<TaikoBaseHit> CreateBeatmapProcessor() => new TaikoBeatmapProcessor();
-
-        protected override Playfield<TaikoBaseHit> CreatePlayfield() => new TaikoPlayfield();
-
-        protected override DrawableHitObject<TaikoBaseHit> GetVisualRepresentation(TaikoBaseHit h) => null;// new DrawableTaikoHit(h);
-    }
-}

osu.Game.Modes.Taiko/UI/TaikoPlayfield.cs

@@ -1,41 +0,0 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
-
-using osu.Framework.Allocation;
-using osu.Framework.Graphics;
-using osu.Framework.Graphics.Sprites;
-using osu.Framework.Graphics.Textures;
-using osu.Game.Modes.Taiko.Objects;
-using osu.Game.Modes.UI;
-using OpenTK;
-using OpenTK.Graphics;
-
-namespace osu.Game.Modes.Taiko.UI
-{
-    public class TaikoPlayfield : Playfield<TaikoBaseHit>
-    {
-        public TaikoPlayfield()
-        {
-            RelativeSizeAxes = Axes.X;
-            Size = new Vector2(1, 100);
-            Anchor = Anchor.Centre;
-            Origin = Anchor.Centre;
-        }
-
-        [BackgroundDependencyLoader]
-        private void load(TextureStore textures)
-        {
-            Add(new Box { RelativeSizeAxes = Axes.Both, Alpha = 0.5f });
-
-            Add(new Sprite
-            {
-                Texture = textures.Get(@"Menu/logo"),
-                Origin = Anchor.Centre,
-                Scale = new Vector2(0.2f),
-                RelativePositionAxes = Axes.Both,
-                Position = new Vector2(0.1f, 0.5f),
-                Colour = Color4.Gray
-            });
-        }
-    }
-}

osu.Game.Modes.Taiko/osu.Game.Modes.Taiko.csproj

@@ -1,90 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
-  <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <ProjectGuid>{F167E17A-7DE6-4AF5-B920-A5112296C695}</ProjectGuid>
-    <OutputType>Library</OutputType>
-    <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>osu.Game.Modes.Taiko</RootNamespace>
-    <AssemblyName>osu.Game.Modes.Taiko</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
-    <FileAlignment>512</FileAlignment>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
-  </PropertyGroup>
-  <ItemGroup>
-    <Reference Include="OpenTK, Version=2.0.0.0, Culture=neutral, PublicKeyToken=bad199fe84eb3df4, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\ppy.OpenTK.2.0.50727.1340\lib\net45\OpenTK.dll</HintPath>
-      <Private>True</Private>
-    </Reference>
-    <Reference Include="System" />
-    <Reference Include="System.Core" />
-    <Reference Include="System.Drawing" />
-    <Reference Include="System.Xml.Linq" />
-    <Reference Include="System.Data.DataSetExtensions" />
-    <Reference Include="Microsoft.CSharp" />
-    <Reference Include="System.Data" />
-    <Reference Include="System.Net.Http" />
-    <Reference Include="System.Xml" />
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="Beatmaps\TaikoBeatmapConverter.cs" />
-    <Compile Include="Beatmaps\TaikoBeatmapProcessor.cs" />
-    <Compile Include="TaikoDifficultyCalculator.cs" />
-    <Compile Include="Objects\Drawable\DrawableTaikoHit.cs" />
-    <Compile Include="Objects\TaikoBaseHit.cs" />
-    <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="UI\TaikoHitRenderer.cs" />
-    <Compile Include="UI\TaikoPlayfield.cs" />
-    <Compile Include="TaikoRuleset.cs" />
-    <Compile Include="Mods\TaikoMod.cs" />
-  </ItemGroup>
-  <ItemGroup>
-    <None Include="..\osu.licenseheader">
-      <Link>osu.licenseheader</Link>
-    </None>
-    <None Include="OpenTK.dll.config" />
-    <None Include="packages.config" />
-  </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\osu-framework\osu.Framework\osu.Framework.csproj">
-      <Project>{C76BF5B3-985E-4D39-95FE-97C9C879B83A}</Project>
-      <Name>osu.Framework</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game.Modes.Osu\osu.Game.Modes.Osu.csproj">
-      <Project>{C92A607B-1FDD-4954-9F92-03FF547D9080}</Project>
-      <Name>osu.Game.Modes.Osu</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game\osu.Game.csproj">
-      <Project>{0D3FBF8A-7464-4CF7-8C90-3E7886DF2D4D}</Project>
-      <Name>osu.Game</Name>
-    </ProjectReference>
-  </ItemGroup>
-  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
-       Other similar extension points exist, see Microsoft.Common.targets.
-  <Target Name="BeforeBuild">
-  </Target>
-  <Target Name="AfterBuild">
-  </Target>
-  -->
-</Project>

osu.Game.Modes.Taiko/packages.config

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<!--
-Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
--->
-<packages>
-  <package id="ppy.OpenTK" version="2.0.50727.1340" targetFramework="net45" />
-</packages>

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

@@ -0,0 +1,31 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using osu.Game.Beatmaps;
+using osu.Game.Rulesets.Catch.Objects;
+using System.Collections.Generic;
+using System;
+using osu.Game.Rulesets.Objects.Types;
+using osu.Game.Rulesets.Objects;
+using osu.Game.Rulesets.Osu.UI;
+
+namespace osu.Game.Rulesets.Catch.Beatmaps
+{
+    internal class CatchBeatmapConverter : BeatmapConverter<CatchBaseHit>
+    {
+        protected override IEnumerable<Type> ValidConversionTypes { get; } = new[] { typeof(IHasXPosition) };
+
+        protected override IEnumerable<CatchBaseHit> ConvertHitObject(HitObject obj, Beatmap beatmap)
+        {
+            if (!(obj is IHasXPosition))
+                yield break;
+
+            yield return new Fruit
+            {
+                StartTime = obj.StartTime,
+                NewCombo = (obj as IHasCombo)?.NewCombo ?? false,
+                X = ((IHasXPosition)obj).X / OsuPlayfield.BASE_SIZE.X
+            };
+        }
+    }
+}

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

@@ -2,18 +2,13 @@
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
 using osu.Game.Beatmaps;
-using osu.Game.Modes.Osu.Objects;
+using osu.Game.Rulesets.Catch.Objects;
 
-namespace osu.Game.Modes.Osu.Beatmaps
+namespace osu.Game.Rulesets.Catch.Beatmaps
 {
-    internal class OsuBeatmapProcessor : IBeatmapProcessor<OsuHitObject>
+    internal class CatchBeatmapProcessor : BeatmapProcessor<CatchBaseHit>
     {
-        public void SetDefaults(OsuHitObject hitObject, Beatmap<OsuHitObject> beatmap)
-        {
-            hitObject.SetDefaultsFromBeatmap(beatmap);
-        }
-
-        public void PostProcess(Beatmap<OsuHitObject> beatmap)
+        public override void PostProcess(Beatmap<CatchBaseHit> beatmap)
         {
             if (beatmap.ComboColors.Count == 0)
                 return;
@@ -21,16 +16,22 @@ namespace osu.Game.Modes.Osu.Beatmaps
             int comboIndex = 0;
             int colourIndex = 0;
 
+            CatchBaseHit lastObj = null;
+
             foreach (var obj in beatmap.HitObjects)
             {
                 if (obj.NewCombo)
                 {
+                    if (lastObj != null) lastObj.LastInCombo = true;
+
                     comboIndex = 0;
                     colourIndex = (colourIndex + 1) % beatmap.ComboColors.Count;
                 }
 
                 obj.ComboIndex = comboIndex++;
                 obj.ComboColour = beatmap.ComboColors[colourIndex];
+
+                lastObj = obj;
             }
         }
     }

osu.Game.Rulesets.Catch/CatchDifficultyCalculator.cs

@@ -2,11 +2,11 @@
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
 using osu.Game.Beatmaps;
-using osu.Game.Modes.Catch.Beatmaps;
-using osu.Game.Modes.Catch.Objects;
+using osu.Game.Rulesets.Catch.Beatmaps;
+using osu.Game.Rulesets.Catch.Objects;
 using System.Collections.Generic;
 
-namespace osu.Game.Modes.Catch
+namespace osu.Game.Rulesets.Catch
 {
     public class CatchDifficultyCalculator : DifficultyCalculator<CatchBaseHit>
     {
@@ -19,6 +19,6 @@ namespace osu.Game.Modes.Catch
             return 0;
         }
 
-        protected override IBeatmapConverter<CatchBaseHit> CreateBeatmapConverter() => new CatchBeatmapConverter();
+        protected override BeatmapConverter<CatchBaseHit> CreateBeatmapConverter() => new CatchBeatmapConverter();
     }
 }

osu.Game.Rulesets.Catch/CatchInputManager.cs

@@ -0,0 +1,27 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using System.ComponentModel;
+using osu.Framework.Input.Bindings;
+using osu.Game.Rulesets.UI;
+
+namespace osu.Game.Rulesets.Catch
+{
+    public class CatchInputManager : RulesetInputManager<CatchAction>
+    {
+        public CatchInputManager(RulesetInfo ruleset)
+            : base(ruleset, 0, SimultaneousBindingMode.Unique)
+        {
+        }
+    }
+
+    public enum CatchAction
+    {
+        [Description("Move left")]
+        MoveLeft,
+        [Description("Move right")]
+        MoveRight,
+        [Description("Engage dash")]
+        Dash
+    }
+}

osu.Game.Rulesets.Catch/CatchRuleset.cs

@@ -1,21 +1,31 @@
 // Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
-using OpenTK.Input;
 using osu.Game.Beatmaps;
 using osu.Game.Graphics;
-using osu.Game.Modes.Catch.Mods;
-using osu.Game.Modes.Catch.UI;
-using osu.Game.Modes.Mods;
-using osu.Game.Modes.UI;
-using osu.Game.Screens.Play;
+using osu.Game.Rulesets.Catch.Mods;
+using osu.Game.Rulesets.Catch.UI;
+using osu.Game.Rulesets.Mods;
+using osu.Game.Rulesets.UI;
 using System.Collections.Generic;
+using osu.Framework.Graphics;
+using osu.Framework.Input.Bindings;
 
-namespace osu.Game.Modes.Catch
+namespace osu.Game.Rulesets.Catch
 {
     public class CatchRuleset : Ruleset
     {
-        public override HitRenderer CreateHitRendererWith(WorkingBeatmap beatmap) => new CatchHitRenderer(beatmap);
+        public override RulesetContainer CreateRulesetContainerWith(WorkingBeatmap beatmap, bool isForCurrentRuleset) => new CatchRulesetContainer(this, beatmap, isForCurrentRuleset);
+
+        public override IEnumerable<KeyBinding> GetDefaultKeyBindings(int variant = 0) => new[]
+        {
+            new KeyBinding(InputKey.Z, CatchAction.MoveLeft),
+            new KeyBinding(InputKey.Left, CatchAction.MoveLeft),
+            new KeyBinding(InputKey.X, CatchAction.MoveRight),
+            new KeyBinding(InputKey.Right, CatchAction.MoveRight),
+            new KeyBinding(InputKey.Shift, CatchAction.Dash),
+            new KeyBinding(InputKey.Shift, CatchAction.Dash),
+        };
 
         public override IEnumerable<Mod> GetModsFor(ModType type)
         {
@@ -26,7 +36,14 @@ namespace osu.Game.Modes.Catch
                     {
                         new CatchModEasy(),
                         new CatchModNoFail(),
-                        new CatchModHalfTime(),
+                        new MultiMod
+                        {
+                            Mods = new Mod[]
+                            {
+                                new CatchModHalfTime(),
+                                new CatchModDaycore(),
+                            },
+                        },
                     };
 
                 case ModType.DifficultyIncrease:
@@ -74,21 +91,17 @@ namespace osu.Game.Modes.Catch
             }
         }
 
-        protected override PlayMode PlayMode => PlayMode.Catch;
-
         public override string Description => "osu!catch";
 
-        public override FontAwesome Icon => FontAwesome.fa_osu_fruits_o;
-
-        public override IEnumerable<KeyCounter> CreateGameplayKeys() => new KeyCounter[]
-        {
-            new KeyCounterKeyboard(Key.ShiftLeft),
-            new KeyCounterMouse(MouseButton.Left),
-            new KeyCounterMouse(MouseButton.Right)
-        };
-
-        public override ScoreProcessor CreateScoreProcessor(int hitObjectCount = 0) => null;
+        public override Drawable CreateIcon() => new SpriteIcon { Icon = FontAwesome.fa_osu_fruits_o };
 
         public override DifficultyCalculator CreateDifficultyCalculator(Beatmap beatmap) => new CatchDifficultyCalculator(beatmap);
+
+        public override int LegacyID => 2;
+
+        public CatchRuleset(RulesetInfo rulesetInfo)
+            : base(rulesetInfo)
+        {
+        }
     }
 }

osu.Game.Rulesets.Catch/Judgements/CatchJudgement.cs

@@ -1,12 +1,12 @@
 // Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
-using osu.Game.Modes.Objects;
+using osu.Game.Rulesets.Judgements;
 
-namespace osu.Game.Modes.Mania.Objects
+namespace osu.Game.Rulesets.Catch.Judgements
 {
-    public abstract class ManiaBaseHit : HitObject
+    public class CatchJudgement : Judgement
     {
-        public int Column;
+        // todo: wangs
     }
 }

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

@@ -1,9 +1,9 @@
 // Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
-using osu.Game.Modes.Mods;
+using osu.Game.Rulesets.Mods;
 
-namespace osu.Game.Modes.Catch.Mods
+namespace osu.Game.Rulesets.Catch.Mods
 {
     public class CatchModNoFail : ModNoFail
     {
@@ -17,7 +17,7 @@ namespace osu.Game.Modes.Catch.Mods
 
     public class CatchModHidden : ModHidden
     {
-        public override string Description => @"Play with no approach circles and fading notes for a slight score advantage.";
+        public override string Description => @"Play with fading notes for a slight score advantage.";
         public override double ScoreMultiplier => 1.06;
     }
 
@@ -32,6 +32,11 @@ namespace osu.Game.Modes.Catch.Mods
 
     }
 
+    public class CatchModDaycore : ModDaycore
+    {
+        public override double ScoreMultiplier => 0.5;
+    }
+
     public class CatchModDoubleTime : ModDoubleTime
     {
         public override double ScoreMultiplier => 1.06;

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

@@ -0,0 +1,24 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using osu.Game.Rulesets.Objects;
+using osu.Game.Rulesets.Objects.Types;
+using OpenTK.Graphics;
+
+namespace osu.Game.Rulesets.Catch.Objects
+{
+    public abstract class CatchBaseHit : HitObject, IHasXPosition, IHasCombo
+    {
+        public float X { get; set; }
+
+        public Color4 ComboColour { get; set; } = Color4.Gray;
+        public int ComboIndex { get; set; }
+
+        public virtual bool NewCombo { get; set; }
+
+        /// <summary>
+        /// The next fruit starts a new combo. Used for explodey.
+        /// </summary>
+        public virtual bool LastInCombo { get; set; }
+    }
+}

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

@@ -0,0 +1,143 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using System;
+using osu.Framework.Allocation;
+using osu.Framework.Extensions.Color4Extensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Framework.MathUtils;
+using osu.Game.Graphics;
+using osu.Game.Rulesets.Judgements;
+using osu.Game.Rulesets.Objects.Drawables;
+using OpenTK;
+using OpenTK.Graphics;
+
+namespace osu.Game.Rulesets.Catch.Objects.Drawable
+{
+    public class DrawableFruit : DrawableScrollingHitObject<CatchBaseHit>
+    {
+        private const float pulp_size = 20;
+
+        private class Pulp : Circle, IHasAccentColour
+        {
+            public Pulp()
+            {
+                Size = new Vector2(pulp_size);
+
+                Blending = BlendingMode.Additive;
+                Colour = Color4.White.Opacity(0.9f);
+            }
+
+            private Color4 accentColour;
+            public Color4 AccentColour
+            {
+                get { return accentColour; }
+                set
+                {
+                    accentColour = value;
+
+                    EdgeEffect = new EdgeEffectParameters
+                    {
+                        Type = EdgeEffectType.Glow,
+                        Radius = 5,
+                        Colour = accentColour.Lighten(100),
+                    };
+                }
+            }
+        }
+
+
+        public DrawableFruit(CatchBaseHit h)
+            : base(h)
+        {
+            Origin = Anchor.Centre;
+            Size = new Vector2(pulp_size * 2.2f, pulp_size * 2.8f);
+
+            RelativePositionAxes = Axes.Both;
+            X = h.X;
+
+            AccentColour = HitObject.ComboColour;
+
+            Masking = false;
+
+            Rotation = (float)(RNG.NextDouble() - 0.5f) * 40;
+        }
+
+        public Func<CatchBaseHit, bool> CheckPosition;
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            Children = new Framework.Graphics.Drawable[]
+            {
+                //todo: share this more
+                new BufferedContainer
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    CacheDrawnFrameBuffer = true,
+                    Children = new Framework.Graphics.Drawable[]
+                    {
+                        new Pulp
+                        {
+                            RelativePositionAxes = Axes.Both,
+                            Anchor = Anchor.TopCentre,
+                            Origin = Anchor.TopCentre,
+                            AccentColour = AccentColour,
+                            Scale = new Vector2(0.6f),
+                        },
+                        new Pulp
+                        {
+                            RelativePositionAxes = Axes.Both,
+                            Anchor = Anchor.CentreLeft,
+                            Origin = Anchor.CentreLeft,
+                            AccentColour = AccentColour,
+                            Y = -0.08f
+                        },
+                        new Pulp
+                        {
+                            RelativePositionAxes = Axes.Both,
+                            Anchor = Anchor.CentreRight,
+                            Origin = Anchor.CentreRight,
+                            AccentColour = AccentColour,
+                            Y = -0.08f
+                        },
+                        new Pulp
+                        {
+                            RelativePositionAxes = Axes.Both,
+                            Anchor = Anchor.BottomCentre,
+                            Origin = Anchor.BottomCentre,
+                            AccentColour = AccentColour,
+                        },
+                    }
+                }
+            };
+        }
+
+        private const float preempt = 1000;
+
+        protected override void CheckForJudgements(bool userTriggered, double timeOffset)
+        {
+            if (timeOffset > 0)
+                AddJudgement(new Judgement { Result = CheckPosition?.Invoke(HitObject) ?? false ? HitResult.Perfect : HitResult.Miss });
+        }
+
+        protected override void UpdateState(ArmedState state)
+        {
+            using (BeginAbsoluteSequence(HitObject.StartTime - preempt))
+            {
+                // animation
+                this.FadeIn(200);
+            }
+
+            switch (state)
+            {
+                case ArmedState.Miss:
+                    using (BeginAbsoluteSequence(HitObject.StartTime, true))
+                        this.FadeOut(250).RotateTo(Rotation * 2, 250, Easing.Out);
+                    break;
+            }
+        }
+    }
+}

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

@@ -1,7 +1,7 @@
 // Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
-namespace osu.Game.Modes.Catch.Objects
+namespace osu.Game.Rulesets.Catch.Objects
 {
     public class Droplet : CatchBaseHit
     {

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

@@ -1,7 +1,7 @@
 // Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
-namespace osu.Game.Modes.Catch.Objects
+namespace osu.Game.Rulesets.Catch.Objects
 {
     public class Fruit : CatchBaseHit
     {

osu.Game.Rulesets.Catch/OpenTK.dll.config

@@ -1,7 +1,3 @@
-<!--
-Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
-Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
--->
 <configuration>
   <dllmap os="linux" dll="opengl32.dll" target="libGL.so.1"/>
   <dllmap os="linux" dll="glu32.dll" target="libGLU.so.1"/>

osu.Game.Rulesets.Catch/Properties/AssemblyInfo.cs

@@ -4,20 +4,20 @@
 using System.Reflection;
 using System.Runtime.InteropServices;
 
-// General Information about an assembly is controlled through the following 
+// General Information about an assembly is controlled through the following
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
-[assembly: AssemblyTitle("osu.Game.Modes.Catch")]
+[assembly: AssemblyTitle("osu.Game.Rulesets.Catch")]
 [assembly: AssemblyDescription("")]
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("")]
-[assembly: AssemblyProduct("osu.Game.Modes.Catch")]
+[assembly: AssemblyProduct("osu.Game.Rulesets.Catch")]
 [assembly: AssemblyCopyright("Copyright ©  2016")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
-// Setting ComVisible to false makes the types in this assembly not visible 
-// to COM components.  If you need to access a type in this assembly from 
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
 // COM, set the ComVisible attribute to true on that type.
 [assembly: ComVisible(false)]
 
@@ -27,11 +27,11 @@ using System.Runtime.InteropServices;
 // Version information for an assembly consists of the following four values:
 //
 //      Major Version
-//      Minor Version 
+//      Minor Version
 //      Build Number
 //      Revision
 //
-// You can specify all the values or you can default the Build and Revision Numbers 
+// You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
 [assembly: AssemblyVersion("1.0.0.0")]

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

@@ -0,0 +1,33 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using osu.Game.Beatmaps;
+using osu.Game.Rulesets.Catch.Judgements;
+using osu.Game.Rulesets.Catch.Objects;
+using osu.Game.Rulesets.Objects.Drawables;
+using osu.Game.Rulesets.Scoring;
+using osu.Game.Rulesets.UI;
+
+namespace osu.Game.Rulesets.Catch.Scoring
+{
+    internal class CatchScoreProcessor : ScoreProcessor<CatchBaseHit>
+    {
+        public CatchScoreProcessor(RulesetContainer<CatchBaseHit> rulesetContainer)
+            : base(rulesetContainer)
+        {
+        }
+
+        protected override void SimulateAutoplay(Beatmap<CatchBaseHit> beatmap)
+        {
+            foreach (var obj in beatmap.HitObjects)
+            {
+                var fruit = obj as Fruit;
+
+                if (fruit != null)
+                    AddJudgement(new CatchJudgement { Result = HitResult.Perfect });
+            }
+
+            base.SimulateAutoplay(beatmap);
+        }
+    }
+}

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

@@ -0,0 +1,23 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using NUnit.Framework;
+using osu.Game.Beatmaps;
+using osu.Game.Rulesets.Catch.Objects;
+
+namespace osu.Game.Rulesets.Catch.Tests
+{
+    [TestFixture]
+    public class TestCaseCatchPlayer : Game.Tests.Visual.TestCasePlayer
+    {
+        protected override Beatmap CreateBeatmap()
+        {
+            var beatmap = new Beatmap();
+
+            for (int i = 0; i < 256; i++)
+                beatmap.HitObjects.Add(new Fruit { X = 0.5f, StartTime = i * 100, NewCombo = i % 8 == 0 });
+
+            return beatmap;
+        }
+    }
+}

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

@@ -0,0 +1,43 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using System;
+using System.Collections.Generic;
+using NUnit.Framework;
+using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Game.Rulesets.Catch.UI;
+using osu.Game.Tests.Visual;
+using OpenTK;
+
+namespace osu.Game.Rulesets.Catch.Tests
+{
+    [TestFixture]
+    internal class TestCaseCatcher : OsuTestCase
+    {
+        public override IReadOnlyList<Type> RequiredTypes => new[]
+        {
+            typeof(CatcherArea),
+        };
+
+        [BackgroundDependencyLoader]
+        private void load(RulesetStore rulesets)
+        {
+            Children = new Drawable[]
+            {
+                new CatchInputManager(rulesets.GetRuleset(2))
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    Child = new CatcherArea
+                    {
+                        RelativePositionAxes = Axes.Both,
+                        RelativeSizeAxes = Axes.Both,
+                        Anchor = Anchor.BottomLeft,
+                        Origin = Anchor.BottomLeft,
+                        Size = new Vector2(1, 0.2f),
+                    }
+                },
+            };
+        }
+    }
+}

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

@@ -0,0 +1,66 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using osu.Framework.Graphics;
+using osu.Game.Rulesets.UI;
+using OpenTK;
+using osu.Framework.Graphics.Containers;
+using osu.Game.Rulesets.Catch.Objects.Drawable;
+using osu.Game.Rulesets.Judgements;
+using osu.Game.Rulesets.Objects.Drawables;
+
+namespace osu.Game.Rulesets.Catch.UI
+{
+    public class CatchPlayfield : ScrollingPlayfield
+    {
+        protected override Container<Drawable> Content => content;
+        private readonly Container<Drawable> content;
+        private readonly CatcherArea catcherArea;
+
+        public CatchPlayfield()
+            : base(Axes.Y)
+        {
+            Reversed.Value = true;
+
+            Size = new Vector2(1);
+
+            Anchor = Anchor.TopCentre;
+            Origin = Anchor.TopCentre;
+
+            InternalChildren = new Drawable[]
+            {
+                content = new Container<Drawable>
+                {
+                    RelativeSizeAxes = Axes.Both,
+                },
+                catcherArea = new CatcherArea
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    Anchor = Anchor.BottomLeft,
+                    Origin = Anchor.TopLeft,
+                    Height = 0.3f
+                }
+            };
+        }
+
+        public override void Add(DrawableHitObject h)
+        {
+            h.Depth = (float)h.HitObject.StartTime;
+
+            base.Add(h);
+
+            var fruit = (DrawableFruit)h;
+            fruit.CheckPosition = catcherArea.CheckIfWeCanCatch;
+        }
+
+        public override void OnJudgement(DrawableHitObject judgedObject, Judgement judgement)
+        {
+            if (judgement.IsHit)
+            {
+                Vector2 screenPosition = judgedObject.ScreenSpaceDrawQuad.Centre;
+                Remove(judgedObject);
+                catcherArea.Add(judgedObject, screenPosition);
+            }
+        }
+    }
+}

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

@@ -0,0 +1,41 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using osu.Framework.Input;
+using osu.Game.Beatmaps;
+using osu.Game.Rulesets.Catch.Beatmaps;
+using osu.Game.Rulesets.Catch.Objects;
+using osu.Game.Rulesets.Catch.Objects.Drawable;
+using osu.Game.Rulesets.Catch.Scoring;
+using osu.Game.Rulesets.Objects.Drawables;
+using osu.Game.Rulesets.Scoring;
+using osu.Game.Rulesets.UI;
+
+namespace osu.Game.Rulesets.Catch.UI
+{
+    public class CatchRulesetContainer : ScrollingRulesetContainer<CatchPlayfield, CatchBaseHit>
+    {
+        public CatchRulesetContainer(Ruleset ruleset, WorkingBeatmap beatmap, bool isForCurrentRuleset)
+            : base(ruleset, beatmap, isForCurrentRuleset)
+        {
+        }
+
+        public override ScoreProcessor CreateScoreProcessor() => new CatchScoreProcessor(this);
+
+        protected override BeatmapProcessor<CatchBaseHit> CreateBeatmapProcessor() => new CatchBeatmapProcessor();
+
+        protected override BeatmapConverter<CatchBaseHit> CreateBeatmapConverter() => new CatchBeatmapConverter();
+
+        protected override Playfield CreatePlayfield() => new CatchPlayfield();
+
+        public override PassThroughInputManager CreateInputManager() => new CatchInputManager(Ruleset.RulesetInfo);
+
+        protected override DrawableHitObject<CatchBaseHit> GetVisualRepresentation(CatchBaseHit h)
+        {
+            if (h is Fruit)
+                return new DrawableFruit(h);
+
+            return null;
+        }
+    }
+}

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

@@ -0,0 +1,229 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using System;
+using System.Linq;
+using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Sprites;
+using osu.Framework.Graphics.Textures;
+using osu.Framework.Input.Bindings;
+using osu.Framework.MathUtils;
+using osu.Game.Rulesets.Catch.Objects;
+using osu.Game.Rulesets.Objects.Drawables;
+using OpenTK;
+
+namespace osu.Game.Rulesets.Catch.UI
+{
+    public class CatcherArea : Container
+    {
+        private Catcher catcher;
+        private Container explodingFruitContainer;
+
+        public void Add(DrawableHitObject fruit, Vector2 screenPosition) => catcher.AddToStack(fruit, screenPosition);
+
+        public bool CheckIfWeCanCatch(CatchBaseHit obj) => Math.Abs(catcher.Position.X - obj.X) < catcher.DrawSize.X / DrawSize.X / 2;
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            Children = new Drawable[]
+            {
+                explodingFruitContainer = new Container
+                {
+                    RelativeSizeAxes = Axes.Both,
+                },
+                catcher = new Catcher
+                {
+                    RelativePositionAxes = Axes.Both,
+                    ExplodingFruitTarget = explodingFruitContainer,
+                    Origin = Anchor.TopCentre,
+                    X = 0.5f,
+                }
+            };
+        }
+
+        protected override void Update()
+        {
+            base.Update();
+
+            catcher.Size = new Vector2(DrawSize.Y);
+        }
+
+        private class Catcher : Container, IKeyBindingHandler<CatchAction>
+        {
+            private Texture texture;
+
+            private Container<DrawableHitObject> caughtFruit;
+
+            [BackgroundDependencyLoader]
+            private void load(TextureStore textures)
+            {
+                texture = textures.Get(@"Play/Catch/fruit-catcher-idle");
+
+                Children = new Drawable[]
+                {
+                    createCatcherSprite(),
+                    caughtFruit = new Container<DrawableHitObject>
+                    {
+                        Anchor = Anchor.TopCentre,
+                        Origin = Anchor.BottomCentre,
+                    }
+                };
+            }
+
+            private int currentDirection;
+
+            private bool dashing;
+
+            public Container ExplodingFruitTarget;
+
+            protected bool Dashing
+            {
+                get { return dashing; }
+                set
+                {
+                    if (value == dashing) return;
+
+                    dashing = value;
+
+                    if (dashing)
+                        Schedule(addAdditiveSprite);
+                }
+            }
+
+            private void addAdditiveSprite()
+            {
+                if (!dashing) return;
+
+                var additive = createCatcherSprite();
+
+                additive.RelativePositionAxes = Axes.Both;
+                additive.Blending = BlendingMode.Additive;
+                additive.Position = Position;
+                additive.Scale = Scale;
+
+                ((CatcherArea)Parent).Add(additive);
+
+                additive.FadeTo(0.4f).FadeOut(800, Easing.OutQuint).Expire();
+
+                Scheduler.AddDelayed(addAdditiveSprite, 50);
+            }
+
+            private Sprite createCatcherSprite() => new Sprite
+            {
+                RelativeSizeAxes = Axes.Both,
+                FillMode = FillMode.Fit,
+                Texture = texture,
+                OriginPosition = new Vector2(DrawWidth / 2, 10) //temporary until the sprite is aligned correctly.
+            };
+
+            public bool OnPressed(CatchAction action)
+            {
+                switch (action)
+                {
+                    case CatchAction.MoveLeft:
+                        currentDirection--;
+                        return true;
+                    case CatchAction.MoveRight:
+                        currentDirection++;
+                        return true;
+                    case CatchAction.Dash:
+                        Dashing = true;
+                        return true;
+                }
+
+                return false;
+            }
+
+            public bool OnReleased(CatchAction action)
+            {
+                switch (action)
+                {
+                    case CatchAction.MoveLeft:
+                        currentDirection++;
+                        return true;
+                    case CatchAction.MoveRight:
+                        currentDirection--;
+                        return true;
+                    case CatchAction.Dash:
+                        Dashing = false;
+                        return true;
+                }
+
+                return false;
+            }
+
+            /// <summary>
+            /// The relative space to cover in 1 millisecond. based on 1 game pixel per millisecond as in osu-stable.
+            /// </summary>
+            private const double base_speed = 1.0 / 512;
+
+            protected override void Update()
+            {
+                base.Update();
+
+                if (currentDirection == 0) return;
+
+                double dashModifier = Dashing ? 1 : 0.5;
+
+                Scale = new Vector2(Math.Sign(currentDirection), 1);
+                X = (float)MathHelper.Clamp(X + Math.Sign(currentDirection) * Clock.ElapsedFrameTime * base_speed * dashModifier, 0, 1);
+            }
+
+            public void AddToStack(DrawableHitObject fruit, Vector2 absolutePosition)
+            {
+                fruit.RelativePositionAxes = Axes.None;
+                fruit.Position = new Vector2(ToLocalSpace(absolutePosition).X - DrawSize.X / 2, 0);
+
+                fruit.Anchor = Anchor.TopCentre;
+                fruit.Origin = Anchor.BottomCentre;
+                fruit.Scale *= 0.7f;
+                fruit.LifetimeEnd = double.MaxValue;
+
+                float distance = fruit.DrawSize.X / 2 * fruit.Scale.X;
+
+                while (caughtFruit.Any(f => f.LifetimeEnd == double.MaxValue && Vector2Extensions.DistanceSquared(f.Position, fruit.Position) < distance * distance))
+                {
+                    fruit.X += RNG.Next(-5, 5);
+                    fruit.Y -= RNG.Next(0, 5);
+                }
+
+                caughtFruit.Add(fruit);
+
+                if (((CatchBaseHit)fruit.HitObject).LastInCombo)
+                    explode();
+            }
+
+            private void explode()
+            {
+                var fruit = caughtFruit.ToArray();
+
+                foreach (var f in fruit)
+                {
+                    var originalX = f.X * Scale.X;
+
+                    if (ExplodingFruitTarget != null)
+                    {
+                        f.Anchor = Anchor.TopLeft;
+                        f.Position = caughtFruit.ToSpaceOfOtherDrawable(f.DrawPosition, ExplodingFruitTarget);
+
+                        caughtFruit.Remove(f);
+
+                        ExplodingFruitTarget.Add(f);
+                    }
+
+                    f.MoveToY(f.Y - 50, 250, Easing.OutSine)
+                    .Then()
+                    .MoveToY(f.Y + 50, 500, Easing.InSine);
+
+                    f.MoveToX(f.X + originalX * 6, 1000);
+                    f.FadeOut(750);
+
+                    f.Expire();
+                }
+            }
+        }
+    }
+}

osu.Game.Rulesets.Catch/app.config

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <runtime>
+    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
+      <dependentAssembly>
+        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-10.0.0.0" newVersion="10.0.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="SharpCompress" publicKeyToken="afb0a02973931d96" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-0.18.1.0" newVersion="0.18.1.0" />
+      </dependentAssembly>
+    </assemblyBinding>
+  </runtime>
+</configuration>

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

@@ -7,55 +7,60 @@
     <ProjectGuid>{58F6C80C-1253-4A0E-A465-B8C85EBEADF3}</ProjectGuid>
     <OutputType>Library</OutputType>
     <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>osu.Game.Modes.Catch</RootNamespace>
-    <AssemblyName>osu.Game.Modes.Catch</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <RootNamespace>osu.Game.Rulesets.Catch</RootNamespace>
+    <AssemblyName>osu.Game.Rulesets.Catch</AssemblyName>
+    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
-    <OutputPath>bin\Debug\</OutputPath>
+    <OutputPath>..\osu.Game\bin\Debug\</OutputPath>
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
+    <LangVersion>6</LangVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
     <Optimize>true</Optimize>
-    <OutputPath>bin\Release\</OutputPath>
+    <OutputPath>..\osu.Game\bin\Release\</OutputPath>
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="OpenTK, Version=2.0.0.0, Culture=neutral, PublicKeyToken=bad199fe84eb3df4, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\ppy.OpenTK.2.0.50727.1340\lib\net45\OpenTK.dll</HintPath>
-      <Private>True</Private>
+    <Reference Include="nunit.framework, Version=3.8.1.0, Culture=neutral, PublicKeyToken=2638cd05610744eb, processorArchitecture=MSIL">
+      <HintPath>$(SolutionDir)\packages\NUnit.3.8.1\lib\net45\nunit.framework.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="OpenTK, Version=3.0.0.0, Culture=neutral, PublicKeyToken=bad199fe84eb3df4, processorArchitecture=MSIL">
+      <HintPath>$(SolutionDir)\packages\OpenTK.3.0.0-git00009\lib\net20\OpenTK.dll</HintPath>
+      <Private>False</Private>
     </Reference>
     <Reference Include="System" />
+    <Reference Include="System.Collections" />
     <Reference Include="System.Core" />
-    <Reference Include="System.Drawing" />
-    <Reference Include="System.Xml.Linq" />
-    <Reference Include="System.Data.DataSetExtensions" />
-    <Reference Include="Microsoft.CSharp" />
-    <Reference Include="System.Data" />
-    <Reference Include="System.Net.Http" />
-    <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Beatmaps\CatchBeatmapConverter.cs" />
     <Compile Include="Beatmaps\CatchBeatmapProcessor.cs" />
     <Compile Include="CatchDifficultyCalculator.cs" />
+    <Compile Include="CatchInputManager.cs" />
+    <Compile Include="Scoring\CatchScoreProcessor.cs" />
+    <Compile Include="Judgements\CatchJudgement.cs" />
     <Compile Include="Objects\CatchBaseHit.cs" />
     <Compile Include="Objects\Drawable\DrawableFruit.cs" />
     <Compile Include="Objects\Droplet.cs" />
     <Compile Include="Objects\Fruit.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="UI\CatchHitRenderer.cs" />
+    <Compile Include="Tests\TestCaseCatcher.cs" />
+    <Compile Include="Tests\TestCaseCatchPlayer.cs" />
+    <Compile Include="UI\CatcherArea.cs" />
+    <Compile Include="UI\CatchRulesetContainer.cs" />
     <Compile Include="UI\CatchPlayfield.cs" />
     <Compile Include="CatchRuleset.cs" />
     <Compile Include="Mods\CatchMod.cs" />
@@ -64,6 +69,7 @@
     <None Include="..\osu.licenseheader">
       <Link>osu.licenseheader</Link>
     </None>
+    <None Include="app.config" />
     <None Include="OpenTK.dll.config" />
     <None Include="packages.config" />
   </ItemGroup>
@@ -71,18 +77,21 @@
     <ProjectReference Include="..\osu-framework\osu.Framework\osu.Framework.csproj">
       <Project>{C76BF5B3-985E-4D39-95FE-97C9C879B83A}</Project>
       <Name>osu.Framework</Name>
+      <Private>False</Private>
     </ProjectReference>
-    <ProjectReference Include="..\osu.Game.Modes.Osu\osu.Game.Modes.Osu.csproj">
+    <ProjectReference Include="..\osu.Game.Rulesets.Osu\osu.Game.Rulesets.Osu.csproj">
       <Project>{C92A607B-1FDD-4954-9F92-03FF547D9080}</Project>
-      <Name>osu.Game.Modes.Osu</Name>
+      <Name>osu.Game.Rulesets.Osu</Name>
+      <Private>False</Private>
     </ProjectReference>
     <ProjectReference Include="..\osu.Game\osu.Game.csproj">
-      <Project>{0D3FBF8A-7464-4CF7-8C90-3E7886DF2D4D}</Project>
+      <Project>{2a66dd92-adb1-4994-89e2-c94e04acda0d}</Project>
       <Name>osu.Game</Name>
+      <Private>False</Private>
     </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
        Other similar extension points exist, see Microsoft.Common.targets.
   <Target Name="BeforeBuild">
   </Target>

osu.Game.Rulesets.Catch/packages.config

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="NUnit" version="3.8.1" targetFramework="net461" />
+  <package id="OpenTK" version="3.0.0-git00009" targetFramework="net461" />
+</packages>

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

@@ -0,0 +1,209 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using osu.Game.Rulesets.Mania.Objects;
+using System;
+using System.Collections.Generic;
+using osu.Game.Beatmaps;
+using osu.Game.Rulesets.Objects;
+using osu.Game.Rulesets.Objects.Types;
+using osu.Game.Rulesets.Mania.Beatmaps.Patterns;
+using osu.Game.Rulesets.Mania.MathUtils;
+using osu.Game.Rulesets.Mania.Beatmaps.Patterns.Legacy;
+using OpenTK;
+using osu.Game.Audio;
+
+namespace osu.Game.Rulesets.Mania.Beatmaps
+{
+    public class ManiaBeatmapConverter : BeatmapConverter<ManiaHitObject>
+    {
+        /// <summary>
+        /// Maximum number of previous notes to consider for density calculation.
+        /// </summary>
+        private const int max_notes_for_density = 7;
+
+        protected override IEnumerable<Type> ValidConversionTypes { get; } = new[] { typeof(IHasXPosition) };
+
+        private Pattern lastPattern = new Pattern();
+        private FastRandom random;
+        private Beatmap beatmap;
+
+        private readonly int availableColumns;
+        private readonly bool isForCurrentRuleset;
+
+        public ManiaBeatmapConverter(bool isForCurrentRuleset, int availableColumns)
+        {
+            if (availableColumns <= 0) throw new ArgumentOutOfRangeException(nameof(availableColumns));
+
+            this.isForCurrentRuleset = isForCurrentRuleset;
+            this.availableColumns = availableColumns;
+        }
+
+        protected override Beatmap<ManiaHitObject> ConvertBeatmap(Beatmap original)
+        {
+            beatmap = original;
+
+            BeatmapDifficulty difficulty = original.BeatmapInfo.Difficulty;
+
+            int seed = (int)Math.Round(difficulty.DrainRate + difficulty.CircleSize) * 20 + (int)(difficulty.OverallDifficulty * 41.2) + (int)Math.Round(difficulty.ApproachRate);
+            random = new FastRandom(seed);
+
+            return base.ConvertBeatmap(original);
+        }
+
+        protected override IEnumerable<ManiaHitObject> ConvertHitObject(HitObject original, Beatmap beatmap)
+        {
+            var maniaOriginal = original as ManiaHitObject;
+            if (maniaOriginal != null)
+            {
+                yield return maniaOriginal;
+                yield break;
+            }
+
+            var objects = isForCurrentRuleset ? generateSpecific(original) : generateConverted(original);
+
+            if (objects == null)
+                yield break;
+
+            foreach (ManiaHitObject obj in objects)
+                yield return obj;
+        }
+
+        private readonly List<double> prevNoteTimes = new List<double>(max_notes_for_density);
+        private double density = int.MaxValue;
+        private void computeDensity(double newNoteTime)
+        {
+            if (prevNoteTimes.Count == max_notes_for_density)
+                prevNoteTimes.RemoveAt(0);
+            prevNoteTimes.Add(newNoteTime);
+
+            density = (prevNoteTimes[prevNoteTimes.Count - 1] - prevNoteTimes[0]) / prevNoteTimes.Count;
+        }
+
+        private double lastTime;
+        private Vector2 lastPosition;
+        private PatternType lastStair;
+        private void recordNote(double time, Vector2 position)
+        {
+            lastTime = time;
+            lastPosition = position;
+        }
+
+        /// <summary>
+        /// Method that generates hit objects for osu!mania specific beatmaps.
+        /// </summary>
+        /// <param name="original">The original hit object.</param>
+        /// <returns>The hit objects generated.</returns>
+        private IEnumerable<ManiaHitObject> generateSpecific(HitObject original)
+        {
+            var generator = new SpecificBeatmapPatternGenerator(random, original, beatmap, availableColumns, lastPattern);
+
+            Pattern newPattern = generator.Generate();
+            lastPattern = newPattern;
+
+            return newPattern.HitObjects;
+        }
+
+        /// <summary>
+        /// Method that generates hit objects for non-osu!mania beatmaps.
+        /// </summary>
+        /// <param name="original">The original hit object.</param>
+        /// <returns>The hit objects generated.</returns>
+        private IEnumerable<ManiaHitObject> generateConverted(HitObject original)
+        {
+            var endTimeData = original as IHasEndTime;
+            var distanceData = original as IHasDistance;
+            var positionData = original as IHasPosition;
+
+            // Following lines currently commented out to appease resharper
+
+            Patterns.PatternGenerator conversion = null;
+
+            if (distanceData != null)
+                conversion = new DistanceObjectPatternGenerator(random, original, beatmap, availableColumns, lastPattern);
+            else if (endTimeData != null)
+                conversion = new EndTimeObjectPatternGenerator(random, original, beatmap, availableColumns);
+            else if (positionData != null)
+            {
+                computeDensity(original.StartTime);
+
+                conversion = new HitObjectPatternGenerator(random, original, beatmap, availableColumns, lastPattern, lastTime, lastPosition, density, lastStair);
+
+                recordNote(original.StartTime, positionData.Position);
+            }
+
+            if (conversion == null)
+                return null;
+
+            Pattern newPattern = conversion.Generate();
+            lastPattern = newPattern;
+
+            var stairPatternGenerator = (HitObjectPatternGenerator)conversion;
+            lastStair = stairPatternGenerator.StairType;
+
+            return newPattern.HitObjects;
+        }
+
+        /// <summary>
+        /// A pattern generator for osu!mania-specific beatmaps.
+        /// </summary>
+        private class SpecificBeatmapPatternGenerator : Patterns.Legacy.PatternGenerator
+        {
+            public SpecificBeatmapPatternGenerator(FastRandom random, HitObject hitObject, Beatmap beatmap, int availableColumns, Pattern previousPattern)
+                : base(random, hitObject, beatmap, availableColumns, previousPattern)
+            {
+            }
+
+            public override Pattern Generate()
+            {
+                var endTimeData = HitObject as IHasEndTime;
+                var positionData = HitObject as IHasXPosition;
+
+                int column = GetColumn(positionData?.X ?? 0);
+
+                var pattern = new Pattern();
+
+                if (endTimeData != null)
+                {
+                    pattern.Add(new HoldNote
+                    {
+                        StartTime = HitObject.StartTime,
+                        Duration = endTimeData.Duration,
+                        Column = column,
+                        Head = { Samples = sampleInfoListAt(HitObject.StartTime) },
+                        Tail = { Samples = sampleInfoListAt(endTimeData.EndTime) },
+                    });
+                }
+                else if (positionData != null)
+                {
+                    pattern.Add(new Note
+                    {
+                        StartTime = HitObject.StartTime,
+                        Samples = HitObject.Samples,
+                        Column = column
+                    });
+                }
+
+                return pattern;
+            }
+
+            /// <summary>
+            /// Retrieves the sample info list at a point in time.
+            /// </summary>
+            /// <param name="time">The time to retrieve the sample info list from.</param>
+            /// <returns></returns>
+            private SampleInfoList sampleInfoListAt(double time)
+            {
+                var curveData = HitObject as IHasCurve;
+
+                if (curveData == null)
+                    return HitObject.Samples;
+
+                double segmentTime = (curveData.EndTime - HitObject.StartTime) / curveData.RepeatCount;
+
+                int index = (int)(segmentTime == 0 ? 0 : (time - HitObject.StartTime) / segmentTime);
+                return curveData.RepeatSamples[index];
+            }
+        }
+    }
+}

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

@@ -0,0 +1,488 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using System;
+using System.Linq;
+using osu.Game.Audio;
+using osu.Game.Beatmaps;
+using osu.Game.Rulesets.Mania.MathUtils;
+using osu.Game.Rulesets.Objects;
+using osu.Game.Rulesets.Objects.Types;
+using osu.Game.Rulesets.Mania.Objects;
+using osu.Game.Beatmaps.ControlPoints;
+
+namespace osu.Game.Rulesets.Mania.Beatmaps.Patterns.Legacy
+{
+    /// <summary>
+    /// A pattern generator for IHasDistance hit objects.
+    /// </summary>
+    internal class DistanceObjectPatternGenerator : PatternGenerator
+    {
+        /// <summary>
+        /// Base osu! slider scoring distance.
+        /// </summary>
+        private const float osu_base_scoring_distance = 100;
+
+        private readonly double endTime;
+        private readonly double segmentDuration;
+        private readonly int repeatCount;
+
+        private PatternType convertType;
+
+        public DistanceObjectPatternGenerator(FastRandom random, HitObject hitObject, Beatmap beatmap, int availableColumns, Pattern previousPattern)
+            : base(random, hitObject, beatmap, availableColumns, previousPattern)
+        {
+            convertType = PatternType.None;
+            if (Beatmap.ControlPointInfo.EffectPointAt(hitObject.StartTime).KiaiMode)
+                convertType = PatternType.LowProbability;
+
+            var distanceData = hitObject as IHasDistance;
+            var repeatsData = hitObject as IHasRepeats;
+
+            repeatCount = repeatsData?.RepeatCount ?? 1;
+
+            TimingControlPoint timingPoint = beatmap.ControlPointInfo.TimingPointAt(hitObject.StartTime);
+            DifficultyControlPoint difficultyPoint = beatmap.ControlPointInfo.DifficultyPointAt(hitObject.StartTime);
+
+            // The true distance, accounting for any repeats
+            double distance = (distanceData?.Distance ?? 0) * repeatCount;
+            // The velocity of the osu! hit object - calculated as the velocity of a slider
+            double osuVelocity = osu_base_scoring_distance * beatmap.BeatmapInfo.Difficulty.SliderMultiplier * difficultyPoint.SpeedMultiplier / timingPoint.BeatLength;
+            // The duration of the osu! hit object
+            double osuDuration = distance / osuVelocity;
+
+            endTime = hitObject.StartTime + osuDuration;
+            segmentDuration = (endTime - HitObject.StartTime) / repeatCount;
+        }
+
+        public override Pattern Generate()
+        {
+            if (repeatCount > 1)
+            {
+                if (segmentDuration <= 90)
+                    return generateRandomHoldNotes(HitObject.StartTime, 1);
+
+                if (segmentDuration <= 120)
+                {
+                    convertType |= PatternType.ForceNotStack;
+                    return generateRandomNotes(HitObject.StartTime, repeatCount + 1);
+                }
+
+                if (segmentDuration <= 160)
+                    return generateStair(HitObject.StartTime);
+
+                if (segmentDuration <= 200 && ConversionDifficulty > 3)
+                    return generateRandomMultipleNotes(HitObject.StartTime);
+
+                double duration = endTime - HitObject.StartTime;
+                if (duration >= 4000)
+                    return generateNRandomNotes(HitObject.StartTime, 0.23, 0, 0);
+
+                if (segmentDuration > 400 && repeatCount < AvailableColumns - 1 - RandomStart)
+                    return generateTiledHoldNotes(HitObject.StartTime);
+
+                return generateHoldAndNormalNotes(HitObject.StartTime);
+            }
+
+            if (segmentDuration <= 110)
+            {
+                if (PreviousPattern.ColumnWithObjects < AvailableColumns)
+                    convertType |= PatternType.ForceNotStack;
+                else
+                    convertType &= ~PatternType.ForceNotStack;
+                return generateRandomNotes(HitObject.StartTime, segmentDuration < 80 ? 1 : 2);
+            }
+
+            if (ConversionDifficulty > 6.5)
+            {
+                if ((convertType & PatternType.LowProbability) > 0)
+                    return generateNRandomNotes(HitObject.StartTime, 0.78, 0.3, 0);
+                return generateNRandomNotes(HitObject.StartTime, 0.85, 0.36, 0.03);
+            }
+
+            if (ConversionDifficulty > 4)
+            {
+                if ((convertType & PatternType.LowProbability) > 0)
+                    return generateNRandomNotes(HitObject.StartTime, 0.43, 0.08, 0);
+                return generateNRandomNotes(HitObject.StartTime, 0.56, 0.18, 0);
+            }
+
+            if (ConversionDifficulty > 2.5)
+            {
+                if ((convertType & PatternType.LowProbability) > 0)
+                    return generateNRandomNotes(HitObject.StartTime, 0.3, 0, 0);
+                return generateNRandomNotes(HitObject.StartTime, 0.37, 0.08, 0);
+            }
+
+            if ((convertType & PatternType.LowProbability) > 0)
+                return generateNRandomNotes(HitObject.StartTime, 0.17, 0, 0);
+            return generateNRandomNotes(HitObject.StartTime, 0.27, 0, 0);
+        }
+
+        /// <summary>
+        /// Generates random hold notes that start at an span the same amount of rows.
+        /// </summary>
+        /// <param name="startTime">Start time of each hold note.</param>
+        /// <param name="noteCount">Number of hold notes.</param>
+        /// <returns>The <see cref="Pattern"/> containing the hit objects.</returns>
+        private Pattern generateRandomHoldNotes(double startTime, int noteCount)
+        {
+            // - - - -
+            // ■ - ■ ■
+            // □ - □ □
+            // ■ - ■ ■
+
+            var pattern = new Pattern();
+
+            int usableColumns = AvailableColumns - RandomStart - PreviousPattern.ColumnWithObjects;
+            int nextColumn = Random.Next(RandomStart, AvailableColumns);
+            for (int i = 0; i < Math.Min(usableColumns, noteCount); i++)
+            {
+                while (pattern.ColumnHasObject(nextColumn) || PreviousPattern.ColumnHasObject(nextColumn))  //find available column
+                    nextColumn = Random.Next(RandomStart, AvailableColumns);
+                addToPattern(pattern, nextColumn, startTime, endTime);
+            }
+
+            // This is can't be combined with the above loop due to RNG
+            for (int i = 0; i < noteCount - usableColumns; i++)
+            {
+                while (pattern.ColumnHasObject(nextColumn))
+                    nextColumn = Random.Next(RandomStart, AvailableColumns);
+                addToPattern(pattern, nextColumn, startTime, endTime);
+            }
+
+            return pattern;
+        }
+
+        /// <summary>
+        /// Generates random notes, with one note per row and no stacking.
+        /// </summary>
+        /// <param name="startTime">The start time.</param>
+        /// <param name="noteCount">The number of notes.</param>
+        /// <returns>The <see cref="Pattern"/> containing the hit objects.</returns>
+        private Pattern generateRandomNotes(double startTime, int noteCount)
+        {
+            // - - - -
+            // x - - -
+            // - - x -
+            // - - - x
+            // x - - -
+
+            var pattern = new Pattern();
+
+            int nextColumn = GetColumn((HitObject as IHasXPosition)?.X ?? 0, true);
+            if ((convertType & PatternType.ForceNotStack) > 0 && PreviousPattern.ColumnWithObjects < AvailableColumns)
+            {
+                while (PreviousPattern.ColumnHasObject(nextColumn))
+                    nextColumn = Random.Next(RandomStart, AvailableColumns);
+            }
+
+            int lastColumn = nextColumn;
+            for (int i = 0; i < noteCount; i++)
+            {
+                addToPattern(pattern, nextColumn, startTime, startTime);
+                while (nextColumn == lastColumn)
+                    nextColumn = Random.Next(RandomStart, AvailableColumns);
+
+                lastColumn = nextColumn;
+                startTime += segmentDuration;
+            }
+
+            return pattern;
+        }
+
+        /// <summary>
+        /// Generates a stair of notes, with one note per row.
+        /// </summary>
+        /// <param name="startTime">The start time.</param>
+        /// <returns>The <see cref="Pattern"/> containing the hit objects.</returns>
+        private Pattern generateStair(double startTime)
+        {
+            // - - - -
+            // x - - -
+            // - x - -
+            // - - x -
+            // - - - x
+            // - - x -
+            // - x - -
+            // x - - -
+
+            var pattern = new Pattern();
+
+            int column = GetColumn((HitObject as IHasXPosition)?.X ?? 0, true);
+            bool increasing = Random.NextDouble() > 0.5;
+
+            for (int i = 0; i <= repeatCount; i++)
+            {
+                addToPattern(pattern, column, startTime, startTime);
+                startTime += segmentDuration;
+
+                // Check if we're at the borders of the stage, and invert the pattern if so
+                if (increasing)
+                {
+                    if (column >= AvailableColumns - 1)
+                    {
+                        increasing = false;
+                        column--;
+                    }
+                    else
+                        column++;
+                }
+                else
+                {
+                    if (column <= RandomStart)
+                    {
+                        increasing = true;
+                        column++;
+                    }
+                    else
+                        column--;
+                }
+            }
+
+            return pattern;
+        }
+
+        /// <summary>
+        /// Generates random notes with 1-2 notes per row and no stacking.
+        /// </summary>
+        /// <param name="startTime">The start time.</param>
+        /// <returns>The <see cref="Pattern"/> containing the hit objects.</returns>
+        private Pattern generateRandomMultipleNotes(double startTime)
+        {
+            // - - - -
+            // x - - -
+            // - x x -
+            // - - - x
+            // x - x -
+
+            var pattern = new Pattern();
+
+            bool legacy = AvailableColumns >= 4 && AvailableColumns <= 8;
+            int interval = Random.Next(1, AvailableColumns - (legacy ? 1 : 0));
+
+            int nextColumn = GetColumn((HitObject as IHasXPosition)?.X ?? 0, true);
+            for (int i = 0; i <= repeatCount; i++)
+            {
+                addToPattern(pattern, nextColumn, startTime, startTime);
+
+                nextColumn += interval;
+                if (nextColumn >= AvailableColumns - RandomStart)
+                    nextColumn = nextColumn - AvailableColumns - RandomStart + (legacy ? 1 : 0);
+                nextColumn += RandomStart;
+
+                // If we're in 2K, let's not add many consecutive doubles
+                if (AvailableColumns > 2)
+                    addToPattern(pattern, nextColumn, startTime, startTime);
+
+                nextColumn = Random.Next(RandomStart, AvailableColumns);
+                startTime += segmentDuration;
+            }
+
+            return pattern;
+        }
+
+        /// <summary>
+        /// Generates random hold notes. The amount of hold notes generated is determined by probabilities.
+        /// </summary>
+        /// <param name="startTime">The hold note start time.</param>
+        /// <param name="p2">The probability required for 2 hold notes to be generated.</param>
+        /// <param name="p3">The probability required for 3 hold notes to be generated.</param>
+        /// <param name="p4">The probability required for 4 hold notes to be generated.</param>
+        /// <returns>The <see cref="Pattern"/> containing the hit objects.</returns>
+        private Pattern generateNRandomNotes(double startTime, double p2, double p3, double p4)
+        {
+            // - - - -
+            // ■ - ■ ■
+            // □ - □ □
+            // ■ - ■ ■
+
+            switch (AvailableColumns)
+            {
+                case 2:
+                    p2 = 0;
+                    p3 = 0;
+                    p4 = 0;
+                    break;
+                case 3:
+                    p2 = Math.Max(p2, 0.1);
+                    p3 = 0;
+                    p4 = 0;
+                    break;
+                case 4:
+                    p2 = Math.Max(p2, 0.3);
+                    p3 = Math.Max(p3, 0.04);
+                    p4 = 0;
+                    break;
+                case 5:
+                    p2 = Math.Max(p2, 0.34);
+                    p3 = Math.Max(p3, 0.1);
+                    p4 = Math.Max(p4, 0.03);
+                    break;
+            }
+
+            Func<SampleInfo, bool> isDoubleSample = sample => sample.Name == SampleInfo.HIT_CLAP && sample.Name == SampleInfo.HIT_FINISH;
+
+            bool canGenerateTwoNotes = (convertType & PatternType.LowProbability) == 0;
+            canGenerateTwoNotes &= HitObject.Samples.Any(isDoubleSample) || sampleInfoListAt(HitObject.StartTime).Any(isDoubleSample);
+
+            if (canGenerateTwoNotes)
+                p2 = 1;
+
+            return generateRandomHoldNotes(startTime, GetRandomNoteCount(p2, p3, p4));
+        }
+
+        /// <summary>
+        /// Generates tiled hold notes. You can think of this as a stair of hold notes.
+        /// </summary>
+        /// <param name="startTime">The first hold note start time.</param>
+        /// <returns>The <see cref="Pattern"/> containing the hit objects.</returns>
+        private Pattern generateTiledHoldNotes(double startTime)
+        {
+            // - - - -
+            // ■ ■ ■ ■
+            // □ □ □ □
+            // □ □ □ □
+            // □ □ □ ■
+            // □ □ ■ -
+            // □ ■ - -
+            // ■ - - -
+
+            var pattern = new Pattern();
+
+            int columnRepeat = Math.Min(repeatCount, AvailableColumns);
+
+            int nextColumn = GetColumn((HitObject as IHasXPosition)?.X ?? 0, true);
+            if ((convertType & PatternType.ForceNotStack) > 0 && PreviousPattern.ColumnWithObjects < AvailableColumns)
+            {
+                while (PreviousPattern.ColumnHasObject(nextColumn))
+                    nextColumn = Random.Next(RandomStart, AvailableColumns);
+            }
+
+            for (int i = 0; i < columnRepeat; i++)
+            {
+                while (pattern.ColumnHasObject(nextColumn))
+                    nextColumn = Random.Next(RandomStart, AvailableColumns);
+
+                addToPattern(pattern, nextColumn, startTime, endTime);
+                startTime += segmentDuration;
+            }
+
+            return pattern;
+        }
+
+        /// <summary>
+        /// Generates a hold note alongside normal notes.
+        /// </summary>
+        /// <param name="startTime">The start time of notes.</param>
+        /// <returns>The <see cref="Pattern"/> containing the hit objects.</returns>
+        private Pattern generateHoldAndNormalNotes(double startTime)
+        {
+            // - - - -
+            // ■ x x -
+            // ■ - x x
+            // ■ x - x
+            // ■ - x x
+
+            var pattern = new Pattern();
+
+            int holdColumn = GetColumn((HitObject as IHasXPosition)?.X ?? 0, true);
+            if ((convertType & PatternType.ForceNotStack) > 0 && PreviousPattern.ColumnWithObjects < AvailableColumns)
+            {
+                while (PreviousPattern.ColumnHasObject(holdColumn))
+                    holdColumn = Random.Next(RandomStart, AvailableColumns);
+            }
+
+            // Create the hold note
+            addToPattern(pattern, holdColumn, startTime, endTime);
+
+            int noteCount = 1;
+            if (ConversionDifficulty > 6.5)
+                noteCount = GetRandomNoteCount(0.63, 0);
+            else if (ConversionDifficulty > 4)
+                noteCount = GetRandomNoteCount(AvailableColumns < 6 ? 0.12 : 0.45, 0);
+            else if (ConversionDifficulty > 2.5)
+                noteCount = GetRandomNoteCount(AvailableColumns < 6 ? 0 : 0.24, 0);
+            noteCount = Math.Min(AvailableColumns - 1, noteCount);
+
+            bool ignoreHead = !sampleInfoListAt(startTime).Any(s => s.Name == SampleInfo.HIT_WHISTLE || s.Name == SampleInfo.HIT_FINISH || s.Name == SampleInfo.HIT_CLAP);
+            int nextColumn = Random.Next(RandomStart, AvailableColumns);
+
+            var rowPattern = new Pattern();
+            for (int i = 0; i <= repeatCount; i++)
+            {
+                if (!(ignoreHead && startTime == HitObject.StartTime))
+                {
+                    for (int j = 0; j < noteCount; j++)
+                    {
+                        while (rowPattern.ColumnHasObject(nextColumn) || nextColumn == holdColumn)
+                            nextColumn = Random.Next(RandomStart, AvailableColumns);
+                        addToPattern(rowPattern, nextColumn, startTime, startTime);
+                    }
+                }
+
+                pattern.Add(rowPattern);
+                rowPattern.Clear();
+
+                startTime += segmentDuration;
+            }
+
+            return pattern;
+        }
+
+        /// <summary>
+        /// Retrieves the sample info list at a point in time.
+        /// </summary>
+        /// <param name="time">The time to retrieve the sample info list from.</param>
+        /// <returns></returns>
+        private SampleInfoList sampleInfoListAt(double time)
+        {
+            var curveData = HitObject as IHasCurve;
+
+            if (curveData == null)
+                return HitObject.Samples;
+
+            double segmentTime = (endTime - HitObject.StartTime) / repeatCount;
+
+            int index = (int)(segmentTime == 0 ? 0 : (time - HitObject.StartTime) / segmentTime);
+            return curveData.RepeatSamples[index];
+        }
+
+        /// <summary>
+        /// Constructs and adds a note to a pattern.
+        /// </summary>
+        /// <param name="pattern">The pattern to add to.</param>
+        /// <param name="column">The column to add the note to.</param>
+        /// <param name="startTime">The start time of the note.</param>
+        /// <param name="endTime">The end time of the note (set to <paramref name="startTime"/> for a non-hold note).</param>
+        private void addToPattern(Pattern pattern, int column, double startTime, double endTime)
+        {
+            ManiaHitObject newObject;
+
+            if (startTime == endTime)
+            {
+                newObject = new Note
+                {
+                    StartTime = startTime,
+                    Samples = sampleInfoListAt(startTime),
+                    Column = column
+                };
+            }
+            else
+            {
+                var holdNote = new HoldNote
+                {
+                    StartTime = startTime,
+                    Column = column,
+                    Duration = endTime - startTime,
+                    Head = { Samples = sampleInfoListAt(startTime) },
+                    Tail = { Samples = sampleInfoListAt(endTime) }
+                };
+
+                newObject = holdNote;
+            }
+
+            pattern.Add(newObject);
+        }
+    }
+}

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

@@ -0,0 +1,101 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using osu.Game.Beatmaps;
+using osu.Game.Rulesets.Mania.MathUtils;
+using osu.Game.Rulesets.Objects;
+using osu.Game.Rulesets.Objects.Types;
+using System.Linq;
+using osu.Game.Audio;
+using osu.Game.Rulesets.Mania.Objects;
+
+namespace osu.Game.Rulesets.Mania.Beatmaps.Patterns.Legacy
+{
+    internal class EndTimeObjectPatternGenerator : PatternGenerator
+    {
+        private readonly double endTime;
+
+        public EndTimeObjectPatternGenerator(FastRandom random, HitObject hitObject, Beatmap beatmap, int availableColumns)
+            : base(random, hitObject, beatmap, availableColumns, new Pattern())
+        {
+            var endtimeData = HitObject as IHasEndTime;
+
+            endTime = endtimeData?.EndTime ?? 0;
+        }
+
+        public override Pattern Generate()
+        {
+            var pattern = new Pattern();
+
+            bool generateHold = endTime - HitObject.StartTime >= 100;
+
+            if (AvailableColumns == 8)
+            {
+                if (HitObject.Samples.Any(s => s.Name == SampleInfo.HIT_FINISH) && endTime - HitObject.StartTime < 1000)
+                    addToPattern(pattern, 0, generateHold);
+                else
+                    addToPattern(pattern, getNextRandomColumn(RandomStart), generateHold);
+            }
+            else if (AvailableColumns > 0)
+                addToPattern(pattern, getNextRandomColumn(0), generateHold);
+
+            return pattern;
+        }
+
+        /// <summary>
+        /// Picks a random column after a column.
+        /// </summary>
+        /// <param name="start">The starting column.</param>
+        /// <returns>A random column after <paramref name="start"/>.</returns>
+        private int getNextRandomColumn(int start)
+        {
+            int nextColumn = Random.Next(start, AvailableColumns);
+
+            while (PreviousPattern.ColumnHasObject(nextColumn))
+                nextColumn = Random.Next(start, AvailableColumns);
+
+            return nextColumn;
+        }
+
+        /// <summary>
+        /// Constructs and adds a note to a pattern.
+        /// </summary>
+        /// <param name="pattern">The pattern to add to.</param>
+        /// <param name="column">The column to add the note to.</param>
+        /// <param name="holdNote">Whether to add a hold note.</param>
+        private void addToPattern(Pattern pattern, int column, bool holdNote)
+        {
+            ManiaHitObject newObject;
+
+            if (holdNote)
+            {
+                var hold = new HoldNote
+                {
+                    StartTime = HitObject.StartTime,
+                    Column = column,
+                    Duration = endTime - HitObject.StartTime
+                };
+
+                hold.Head.Samples.Add(new SampleInfo
+                {
+                    Name = SampleInfo.HIT_NORMAL
+                });
+
+                hold.Tail.Samples = HitObject.Samples;
+
+                newObject = hold;
+            }
+            else
+            {
+                newObject = new Note
+                {
+                    StartTime = HitObject.StartTime,
+                    Samples = HitObject.Samples,
+                    Column = column
+                };
+            }
+
+            pattern.Add(newObject);
+        }
+    }
+}

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

@@ -0,0 +1,401 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using System;
+using System.Linq;
+using OpenTK;
+using osu.Game.Audio;
+using osu.Game.Beatmaps;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Rulesets.Mania.MathUtils;
+using osu.Game.Rulesets.Mania.Objects;
+using osu.Game.Rulesets.Objects;
+using osu.Game.Rulesets.Objects.Types;
+
+namespace osu.Game.Rulesets.Mania.Beatmaps.Patterns.Legacy
+{
+    internal class HitObjectPatternGenerator : PatternGenerator
+    {
+        public PatternType StairType { get; private set; }
+
+        private readonly PatternType convertType;
+
+        public HitObjectPatternGenerator(FastRandom random, HitObject hitObject, Beatmap beatmap, int availableColumns, Pattern previousPattern, double previousTime, Vector2 previousPosition, double density, PatternType lastStair)
+            : base(random, hitObject, beatmap, availableColumns, previousPattern)
+        {
+            if (previousTime > hitObject.StartTime) throw new ArgumentOutOfRangeException(nameof(previousTime));
+            if (density < 0) throw new ArgumentOutOfRangeException(nameof(density));
+
+            StairType = lastStair;
+
+            TimingControlPoint timingPoint = beatmap.ControlPointInfo.TimingPointAt(hitObject.StartTime);
+            EffectControlPoint effectPoint = beatmap.ControlPointInfo.EffectPointAt(hitObject.StartTime);
+
+            var positionData = hitObject as IHasPosition;
+
+            float positionSeparation = ((positionData?.Position ?? Vector2.Zero) - previousPosition).Length;
+            double timeSeparation = hitObject.StartTime - previousTime;
+
+            if (timeSeparation <= 80)
+            {
+                // More than 187 BPM
+                convertType |= PatternType.ForceNotStack | PatternType.KeepSingle;
+            }
+            else if (timeSeparation <= 95)
+            {
+                // More than 157 BPM
+                convertType |= PatternType.ForceNotStack | PatternType.KeepSingle | lastStair;
+            }
+            else if (timeSeparation <= 105)
+            {
+                // More than 140 BPM
+                convertType |= PatternType.ForceNotStack | PatternType.LowProbability;
+            }
+            else if (timeSeparation <= 125)
+            {
+                // More than 120 BPM
+                convertType |= PatternType.ForceNotStack;
+            }
+            else if (timeSeparation <= 135 && positionSeparation < 20)
+            {
+                // More than 111 BPM stream
+                convertType |= PatternType.Cycle | PatternType.KeepSingle;
+            }
+            else if (timeSeparation <= 150 && positionSeparation < 20)
+            {
+                // More than 100 BPM stream
+                convertType |= PatternType.ForceStack | PatternType.LowProbability;
+            }
+            else if (positionSeparation < 20 && density >= timingPoint.BeatLength / 2.5)
+            {
+                // Low density stream
+                convertType |= PatternType.Reverse | PatternType.LowProbability;
+            }
+            else if (density < timingPoint.BeatLength / 2.5 || effectPoint.KiaiMode)
+            {
+                // High density
+            }
+            else
+                convertType |= PatternType.LowProbability;
+        }
+
+        public override Pattern Generate()
+        {
+            int lastColumn = PreviousPattern.HitObjects.FirstOrDefault()?.Column ?? 0;
+
+            if ((convertType & PatternType.Reverse) > 0 && PreviousPattern.HitObjects.Any())
+            {
+                // Generate a new pattern by copying the last hit objects in reverse-column order
+                var pattern = new Pattern();
+
+                for (int i = RandomStart; i < AvailableColumns; i++)
+                    if (PreviousPattern.ColumnHasObject(i))
+                        addToPattern(pattern, RandomStart + AvailableColumns - i - 1);
+
+                return pattern;
+            }
+
+            if ((convertType & PatternType.Cycle) > 0 && PreviousPattern.HitObjects.Count() == 1
+                // If we convert to 7K + 1, let's not overload the special key
+                && (AvailableColumns != 8 || lastColumn != 0)
+                // Make sure the last column was not the centre column
+                && (AvailableColumns % 2 == 0 || lastColumn != AvailableColumns / 2))
+            {
+                // Generate a new pattern by cycling backwards (similar to Reverse but for only one hit object)
+                var pattern = new Pattern();
+
+                int column = RandomStart + AvailableColumns - lastColumn - 1;
+                addToPattern(pattern, column);
+
+                return pattern;
+            }
+
+            if ((convertType & PatternType.ForceStack) > 0 && PreviousPattern.HitObjects.Any())
+            {
+                // Generate a new pattern by placing on the already filled columns
+                var pattern = new Pattern();
+
+                for (int i = RandomStart; i < AvailableColumns; i++)
+                    if (PreviousPattern.ColumnHasObject(i))
+                        addToPattern(pattern, i);
+
+                return pattern;
+            }
+
+            if ((convertType & PatternType.Stair) > 0 && PreviousPattern.HitObjects.Count() == 1)
+            {
+                // Generate a new pattern by placing on the next column, cycling back to the start if there is no "next"
+                var pattern = new Pattern();
+
+                int targetColumn = lastColumn + 1;
+                if (targetColumn == AvailableColumns)
+                {
+                    targetColumn = RandomStart;
+                    StairType = PatternType.ReverseStair;
+                }
+
+                addToPattern(pattern, targetColumn);
+                return pattern;
+            }
+
+            if ((convertType & PatternType.ReverseStair) > 0 && PreviousPattern.HitObjects.Count() == 1)
+            {
+                // Generate a new pattern by placing on the previous column, cycling back to the end if there is no "previous"
+                var pattern = new Pattern();
+
+                int targetColumn = lastColumn - 1;
+                if (targetColumn == RandomStart - 1)
+                {
+                    targetColumn = AvailableColumns - 1;
+                    StairType = PatternType.Stair;
+                }
+
+                addToPattern(pattern, targetColumn);
+                return pattern;
+            }
+
+            if ((convertType & PatternType.KeepSingle) > 0)
+                return generateRandomNotes(1);
+
+            if ((convertType & PatternType.Mirror) > 0)
+            {
+                if (ConversionDifficulty > 6.5)
+                    return generateRandomPatternWithMirrored(0.12, 0.38, 0.12);
+                if (ConversionDifficulty > 4)
+                    return generateRandomPatternWithMirrored(0.12, 0.17, 0);
+                return generateRandomPatternWithMirrored(0.12, 0, 0);
+            }
+
+            if (ConversionDifficulty > 6.5)
+            {
+                if ((convertType & PatternType.LowProbability) > 0)
+                    return generateRandomPattern(0.78, 0.42, 0, 0);
+                return generateRandomPattern(1, 0.62, 0, 0);
+            }
+
+            if (ConversionDifficulty > 4)
+            {
+                if ((convertType & PatternType.LowProbability) > 0)
+                    return generateRandomPattern(0.35, 0.08, 0, 0);
+                return generateRandomPattern(0.52, 0.15, 0, 0);
+            }
+
+            if (ConversionDifficulty > 2)
+            {
+                if ((convertType & PatternType.LowProbability) > 0)
+                    return generateRandomPattern(0.18, 0, 0, 0);
+                return generateRandomPattern(0.45, 0, 0, 0);
+            }
+
+            return generateRandomPattern(0, 0, 0, 0);
+        }
+
+        /// <summary>
+        /// Generates random notes.
+        /// <para>
+        /// This will generate as many as it can up to <paramref name="noteCount"/>, accounting for
+        /// any stacks if <see cref="convertType"/> is forcing no stacks.
+        /// </para>
+        /// </summary>
+        /// <param name="noteCount">The amount of notes to generate.</param>
+        /// <returns>The <see cref="Pattern"/> containing the hit objects.</returns>
+        private Pattern generateRandomNotes(int noteCount)
+        {
+            var pattern = new Pattern();
+
+            bool allowStacking = (convertType & PatternType.ForceNotStack) == 0;
+
+            if (!allowStacking)
+                noteCount = Math.Min(noteCount, AvailableColumns - RandomStart - PreviousPattern.ColumnWithObjects);
+
+            int nextColumn = GetColumn((HitObject as IHasXPosition)?.X ?? 0, true);
+            for (int i = 0; i < noteCount; i++)
+            {
+                while (pattern.ColumnHasObject(nextColumn) || PreviousPattern.ColumnHasObject(nextColumn) && !allowStacking)
+                {
+                    if ((convertType & PatternType.Gathered) > 0)
+                    {
+                        nextColumn++;
+                        if (nextColumn == AvailableColumns)
+                            nextColumn = RandomStart;
+                    }
+                    else
+                        nextColumn = Random.Next(RandomStart, AvailableColumns);
+                }
+
+                addToPattern(pattern, nextColumn);
+            }
+
+            return pattern;
+        }
+
+        /// <summary>
+        /// Whether this hit object can generate a note in the special column.
+        /// </summary>
+        private bool hasSpecialColumn => HitObject.Samples.Any(s => s.Name == SampleInfo.HIT_CLAP) && HitObject.Samples.Any(s => s.Name == SampleInfo.HIT_FINISH);
+
+        /// <summary>
+        /// Generates a random pattern.
+        /// </summary>
+        /// <param name="p2">Probability for 2 notes to be generated.</param>
+        /// <param name="p3">Probability for 3 notes to be generated.</param>
+        /// <param name="p4">Probability for 4 notes to be generated.</param>
+        /// <param name="p5">Probability for 5 notes to be generated.</param>
+        /// <returns>The <see cref="Pattern"/> containing the hit objects.</returns>
+        private Pattern generateRandomPattern(double p2, double p3, double p4, double p5)
+        {
+            var pattern = new Pattern();
+
+            pattern.Add(generateRandomNotes(getRandomNoteCount(p2, p3, p4, p5)));
+
+            if (RandomStart > 0 && hasSpecialColumn)
+                addToPattern(pattern, 0);
+
+            return pattern;
+        }
+
+        /// <summary>
+        /// Generates a random pattern which has both normal and mirrored notes.
+        /// </summary>
+        /// <param name="centreProbability">The probability for a note to be added to the centre column.</param>
+        /// <param name="p2">Probability for 2 notes to be generated.</param>
+        /// <param name="p3">Probability for 3 notes to be generated.</param>
+        /// <returns>The <see cref="Pattern"/> containing the hit objects.</returns>
+        private Pattern generateRandomPatternWithMirrored(double centreProbability, double p2, double p3)
+        {
+            var pattern = new Pattern();
+
+            bool addToCentre;
+            int noteCount = getRandomNoteCountMirrored(centreProbability, p2, p3, out addToCentre);
+
+            int columnLimit = (AvailableColumns % 2 == 0 ? AvailableColumns : AvailableColumns - 1) / 2;
+            int nextColumn = Random.Next(RandomStart, columnLimit);
+            for (int i = 0; i < noteCount; i++)
+            {
+                while (pattern.ColumnHasObject(nextColumn))
+                    nextColumn = Random.Next(RandomStart, columnLimit);
+
+                // Add normal note
+                addToPattern(pattern, nextColumn);
+                // Add mirrored note
+                addToPattern(pattern, RandomStart + AvailableColumns - nextColumn - 1);
+            }
+
+            if (addToCentre)
+                addToPattern(pattern, AvailableColumns / 2);
+
+            if (RandomStart > 0 && hasSpecialColumn)
+                addToPattern(pattern, 0);
+
+            return pattern;
+        }
+
+        /// <summary>
+        /// Generates a count of notes to be generated from a list of probabilities.
+        /// </summary>
+        /// <param name="p2">Probability for 2 notes to be generated.</param>
+        /// <param name="p3">Probability for 3 notes to be generated.</param>
+        /// <param name="p4">Probability for 4 notes to be generated.</param>
+        /// <param name="p5">Probability for 5 notes to be generated.</param>
+        /// <returns>The amount of notes to be generated.</returns>
+        private int getRandomNoteCount(double p2, double p3, double p4, double p5)
+        {
+            switch (AvailableColumns)
+            {
+                case 2:
+                    p2 = 0;
+                    p3 = 0;
+                    p4 = 0;
+                    p5 = 0;
+                    break;
+                case 3:
+                    p2 = Math.Max(p2, 0.1);
+                    p3 = 0;
+                    p4 = 0;
+                    p5 = 0;
+                    break;
+                case 4:
+                    p2 = Math.Max(p2, 0.23);
+                    p3 = Math.Max(p3, 0.04);
+                    p4 = 0;
+                    p5 = 0;
+                    break;
+                case 5:
+                    p3 = Math.Max(p3, 0.15);
+                    p4 = Math.Max(p4, 0.03);
+                    p5 = 0;
+                    break;
+            }
+
+            if (HitObject.Samples.Any(s => s.Name == SampleInfo.HIT_CLAP))
+                p2 = 1;
+
+            return GetRandomNoteCount(p2, p3, p4, p5);
+        }
+
+        /// <summary>
+        /// Generates a count of notes to be generated from a list of probabilities.
+        /// </summary>
+        /// <param name="centreProbability">The probability for a note to be added to the centre column.</param>
+        /// <param name="p2">Probability for 2 notes to be generated.</param>
+        /// <param name="p3">Probability for 3 notes to be generated.</param>
+        /// <param name="addToCentre">Whether to add a note to the centre column.</param>
+        /// <returns>The amount of notes to be generated. The note to be added to the centre column will NOT be part of this count.</returns>
+        private int getRandomNoteCountMirrored(double centreProbability, double p2, double p3, out bool addToCentre)
+        {
+            addToCentre = false;
+
+            if ((convertType & PatternType.ForceNotStack) > 0)
+                return getRandomNoteCount(p2 / 2, p2, (p2 + p3) / 2, p3);
+
+            switch (AvailableColumns)
+            {
+                case 2:
+                    centreProbability = 0;
+                    p2 = 0;
+                    p3 = 0;
+                    break;
+                case 3:
+                    centreProbability = Math.Max(centreProbability, 0.03);
+                    p2 = Math.Max(p2, 0.1);
+                    p3 = 0;
+                    break;
+                case 4:
+                    centreProbability = 0;
+                    p2 = Math.Max(p2 * 2, 0.2);
+                    p3 = 0;
+                    break;
+                case 5:
+                    centreProbability = Math.Max(centreProbability, 0.03);
+                    p3 = 0;
+                    break;
+                case 6:
+                    centreProbability = 0;
+                    p2 = Math.Max(p2 * 2, 0.5);
+                    p3 = Math.Max(p3 * 2, 0.15);
+                    break;
+            }
+
+            double centreVal = Random.NextDouble();
+            int noteCount = GetRandomNoteCount(p2, p3);
+
+            addToCentre = AvailableColumns % 2 != 0 && noteCount != 3 && centreVal > 1 - centreProbability;
+            return noteCount;
+        }
+
+        /// <summary>
+        /// Constructs and adds a note to a pattern.
+        /// </summary>
+        /// <param name="pattern">The pattern to add to.</param>
+        /// <param name="column">The column to add the note to.</param>
+        private void addToPattern(Pattern pattern, int column)
+        {
+            pattern.Add(new Note
+            {
+                StartTime = HitObject.StartTime,
+                Samples = HitObject.Samples,
+                Column = column
+            });
+        }
+    }
+}

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

@@ -0,0 +1,115 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using System;
+using System.Linq;
+using osu.Game.Beatmaps;
+using osu.Game.Rulesets.Mania.MathUtils;
+using osu.Game.Rulesets.Objects;
+using OpenTK;
+
+namespace osu.Game.Rulesets.Mania.Beatmaps.Patterns.Legacy
+{
+    /// <summary>
+    /// A pattern generator for legacy hit objects.
+    /// </summary>
+    internal abstract class PatternGenerator : Patterns.PatternGenerator
+    {
+        /// <summary>
+        /// The column index at which to start generating random notes.
+        /// </summary>
+        protected readonly int RandomStart;
+
+        /// <summary>
+        /// The random number generator to use.
+        /// </summary>
+        protected readonly FastRandom Random;
+
+        protected PatternGenerator(FastRandom random, HitObject hitObject, Beatmap beatmap, int availableColumns, Pattern previousPattern)
+            : base(hitObject, beatmap, availableColumns, previousPattern)
+        {
+            if (random == null) throw new ArgumentNullException(nameof(random));
+            if (beatmap == null) throw new ArgumentNullException(nameof(beatmap));
+            if (availableColumns <= 0) throw new ArgumentOutOfRangeException(nameof(availableColumns));
+            if (previousPattern == null) throw new ArgumentNullException(nameof(previousPattern));
+
+            Random = random;
+            RandomStart = AvailableColumns == 8 ? 1 : 0;
+        }
+
+        /// <summary>
+        /// Converts an x-position into a column.
+        /// </summary>
+        /// <param name="position">The x-position.</param>
+        /// <param name="allowSpecial">Whether to treat as 7K + 1.</param>
+        /// <returns>The column.</returns>
+        protected int GetColumn(float position, bool allowSpecial = false)
+        {
+            if (allowSpecial && AvailableColumns == 8)
+            {
+                const float local_x_divisor = 512f / 7;
+                return MathHelper.Clamp((int)Math.Floor(position / local_x_divisor), 0, 6) + 1;
+            }
+
+            float localXDivisor = 512f / AvailableColumns;
+            return MathHelper.Clamp((int)Math.Floor(position / localXDivisor), 0, AvailableColumns - 1);
+        }
+
+        /// <summary>
+        /// Generates a count of notes to be generated from probabilities.
+        /// </summary>
+        /// <param name="p2">Probability for 2 notes to be generated.</param>
+        /// <param name="p3">Probability for 3 notes to be generated.</param>
+        /// <param name="p4">Probability for 4 notes to be generated.</param>
+        /// <param name="p5">Probability for 5 notes to be generated.</param>
+        /// <param name="p6">Probability for 6 notes to be generated.</param>
+        /// <returns>The amount of notes to be generated.</returns>
+        protected int GetRandomNoteCount(double p2, double p3, double p4 = 0, double p5 = 0, double p6 = 0)
+        {
+            if (p2 < 0 || p2 > 1) throw new ArgumentOutOfRangeException(nameof(p2));
+            if (p3 < 0 || p3 > 1) throw new ArgumentOutOfRangeException(nameof(p3));
+            if (p4 < 0 || p4 > 1) throw new ArgumentOutOfRangeException(nameof(p4));
+            if (p5 < 0 || p5 > 1) throw new ArgumentOutOfRangeException(nameof(p5));
+            if (p6 < 0 || p6 > 1) throw new ArgumentOutOfRangeException(nameof(p6));
+
+            double val = Random.NextDouble();
+            if (val >= 1 - p6)
+                return 6;
+            if (val >= 1 - p5)
+                return 5;
+            if (val >= 1 - p4)
+                return 4;
+            if (val >= 1 - p3)
+                return 3;
+            return val >= 1 - p2 ? 2 : 1;
+        }
+
+        private double? conversionDifficulty;
+        /// <summary>
+        /// A difficulty factor used for various conversion methods from osu!stable.
+        /// </summary>
+        protected double ConversionDifficulty
+        {
+            get
+            {
+                if (conversionDifficulty != null)
+                    return conversionDifficulty.Value;
+
+                HitObject lastObject = Beatmap.HitObjects.LastOrDefault();
+                HitObject firstObject = Beatmap.HitObjects.FirstOrDefault();
+
+                double drainTime = (lastObject?.StartTime ?? 0) - (firstObject?.StartTime ?? 0);
+                drainTime -= Beatmap.TotalBreakTime;
+
+                if (drainTime == 0)
+                    drainTime = 10000;
+
+                BeatmapDifficulty difficulty = Beatmap.BeatmapInfo.Difficulty;
+                conversionDifficulty = ((difficulty.DrainRate + MathHelper.Clamp(difficulty.ApproachRate, 4, 7)) / 1.5 + Beatmap.HitObjects.Count / drainTime * 9f) / 38f * 5f / 1.15;
+                conversionDifficulty = Math.Min(conversionDifficulty.Value, 12);
+
+                return conversionDifficulty.Value;
+            }
+        }
+    }
+}