Merge pull request #1424 from peppy/fix-deploy-script

Update MSBuild path

.vscode/launch.json

@@ -1,36 +1,66 @@
 {
     "version": "0.2.0",
-    "configurations": [
-        {
-            "name": "Launch VisualTests",
-            "type": "mono",
-            "request": "launch",
-            "program": "${workspaceRoot}/osu.Desktop.VisualTests/bin/Debug/osu!.exe",
-            "args": [],
-            "cwd": "${workspaceRoot}",
-            "preLaunchTask": "build",
-            "runtimeExecutable": null,
-            "env": {},
-            "console": "internalConsole"
-        },
-        {
-            "name": "Launch Desktop",
+    "configurations": [{
+            "name": "osu! VisualTests (Debug)",
+            "windows": {
+                "type": "clr"
+            },
             "type": "mono",
             "request": "launch",
             "program": "${workspaceRoot}/osu.Desktop/bin/Debug/osu!.exe",
-            "args": [],
+            "args": [
+                "--tests"
+            ],
             "cwd": "${workspaceRoot}",
-            "preLaunchTask": "build",
+            "preLaunchTask": "Build (Debug)",
             "runtimeExecutable": null,
             "env": {},
             "console": "internalConsole"
         },
         {
-            "name": "Attach",
+            "name": "osu! VisualTests (Release)",
+            "windows": {
+                "type": "clr"
+            },
             "type": "mono",
-            "request": "attach",
-            "address": "localhost",
-            "port": 55555
+            "request": "launch",
+            "program": "${workspaceRoot}/osu.Desktop/bin/Release/osu!.exe",
+            "args": [
+                "--tests"
+            ],
+            "cwd": "${workspaceRoot}",
+            "preLaunchTask": "Build (Release)",
+            "runtimeExecutable": null,
+            "env": {},
+            "console": "internalConsole"
+        },
+        {
+            "name": "osu! (Debug)",
+            "windows": {
+                "type": "clr"
+            },
+            "type": "mono",
+            "request": "launch",
+            "program": "${workspaceRoot}/osu.Desktop/bin/Debug/osu!.exe",
+            "cwd": "${workspaceRoot}",
+            "preLaunchTask": "Build (Debug)",
+            "runtimeExecutable": null,
+            "env": {},
+            "console": "internalConsole"
+        },
+        {
+            "name": "osu! (Release)",
+            "windows": {
+                "type": "clr"
+            },
+            "type": "mono",
+            "request": "launch",
+            "program": "${workspaceRoot}/osu.Desktop/bin/Release/osu!.exe",
+            "cwd": "${workspaceRoot}",
+            "preLaunchTask": "Build (Release)",
+            "runtimeExecutable": null,
+            "env": {},
+            "console": "internalConsole"
         }
     ]
 }

.vscode/tasks.json

@@ -1,21 +1,64 @@
 {
     // See https://go.microsoft.com/fwlink/?LinkId=733558
     // for the documentation about the tasks.json format
-    "version": "0.1.0",
-    "taskSelector": "/t:",
-    "tasks": [
+    "version": "2.0.0",
+    "command": "msbuild",
+    "type": "shell",
+    "suppressTaskName": true,
+    "args": [
+        "/property:GenerateFullPaths=true",
+        "/property:DebugType=portable",
+        "/verbosity:minimal",
+        "/m" //parallel compiling support.
+    ],
+    "tasks": [{
+            "taskName": "Build (Debug)",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "problemMatcher": [
+                "$msCompile"
+            ]
+        },
         {
-            "taskName": "build",
-            "isShellCommand": true,
-            "showOutput": "silent",
-            "command": "msbuild",
+            "taskName": "Build (Release)",
+            "group": "build",
             "args": [
-                // Ask msbuild to generate full paths for file names.
-                "/property:GenerateFullPaths=true"
+                "/property:Configuration=Release"
             ],
-            // Use the standard MS compiler pattern to detect errors, warnings and infos
-            "problemMatcher": "$msCompile",
-            "isBuildCommand": true
+            "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

@@ -1,5 +1,7 @@
+# 2017-09-14
 clone_depth: 1
 version: '{branch}-{build}'
+image: Visual Studio 2017
 configuration: Debug
 cache:
   - C:\ProgramData\chocolatey\bin -> appveyor.yml
@@ -10,7 +12,7 @@ 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/v0.2.2/CodeFileSanity.exe
+  - cmd: appveyor DownloadFile https://github.com/peppy/CodeFileSanity/releases/download/v0.2.3/CodeFileSanity.exe
 before_build:
   - cmd: CodeFileSanity.exe
   - cmd: nuget restore
@@ -20,4 +22,4 @@ 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

@@ -31,6 +31,10 @@ Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/maste
         <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

@@ -7,7 +7,6 @@ using System.Configuration;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
-using System.Net;
 using Newtonsoft.Json;
 using osu.Framework.IO.Network;
 using FileWebRequest = osu.Framework.IO.Network.FileWebRequest;
@@ -17,9 +16,9 @@ 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 msbuild_path = @"C:\Program Files (x86)\MSBuild\14.0\Bin\MSBuild.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)\Microsoft Visual Studio\2017\Community\MSBuild\15.0\Bin\MSBuild.exe";
 
         public static string StagingFolder = ConfigurationManager.AppSettings["StagingFolder"];
         public static string ReleasesFolder = ConfigurationManager.AppSettings["ReleasesFolder"];
@@ -29,7 +28,7 @@ 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"];
@@ -100,7 +99,8 @@ 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}");
@@ -390,8 +390,8 @@ namespace osu.Desktop.Deploy
 
         public static void AuthenticatedBlockingPerform(this WebRequest r)
         {
-            r.AddHeader("Authorization", $"token {GitHubAccessToken}");
-            r.BlockingPerform();
+            r.Headers.Add("Authorization", $"token {GitHubAccessToken}");
+            r.Perform();
         }
     }
 
@@ -401,12 +401,7 @@ namespace osu.Desktop.Deploy
         {
         }
 
-        protected override HttpWebRequest CreateWebRequest(string requestString = null)
-        {
-            var req = base.CreateWebRequest(requestString);
-            req.Accept = "application/octet-stream";
-            return req;
-        }
+        protected override string Accept => "application/octet-stream";
     }
 
     internal class ReleaseLine

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>
@@ -49,10 +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>$(SolutionDir)\packages\Mono.Cecil.0.9.6.4\lib\net45\Mono.Cecil.dll</HintPath>
       <Private>True</Private>
@@ -70,18 +66,23 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="Newtonsoft.Json, Version=10.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\Newtonsoft.Json.10.0.2\lib\net45\Newtonsoft.Json.dll</HintPath>
+      <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" />
@@ -110,10 +111,6 @@
     <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>

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="10.0.2" 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/VisualTests.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 NUnit.Framework;
-using osu.Desktop.VisualTests;
-using osu.Framework.Desktop.Platform;
-
-namespace osu.Desktop.Tests
-{
-    [TestFixture]
-    public class VisualTests
-    {
-        [Test]
-        public void TestVisualTests()
-        {
-            using (var host = new HeadlessGameHost())
-            {
-                host.Run(new AutomatedVisualTestGame());
-            }
-        }
-    }
-}

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

@@ -1,119 +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>
-    <LangVersion>6</LangVersion>
-  </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="Newtonsoft.Json, Version=10.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\Newtonsoft.Json.10.0.2\lib\net45\Newtonsoft.Json.dll</HintPath>
-    </Reference>
-    <Reference Include="nunit.framework, Version=3.6.1.0, Culture=neutral, PublicKeyToken=2638cd05610744eb, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\NUnit.3.6.1\lib\net45\nunit.framework.dll</HintPath>
-    </Reference>
-    <Reference Include="SQLite.Net, Version=3.1.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>$(SolutionDir)\packages\SQLite.Net.Core-PCL.3.1.1\lib\portable-win8+net45+wp8+wpa81+MonoAndroid1+MonoTouch1\SQLite.Net.dll</HintPath>
-    </Reference>
-    <Reference Include="System" />
-    <Reference Include="SQLiteNetExtensions">
-      <HintPath>$(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="VisualTests.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.Rulesets.Catch\osu.Game.Rulesets.Catch.csproj">
-      <Project>{58F6C80C-1253-4A0E-A465-B8C85EBEADF3}</Project>
-      <Name>osu.Game.Rulesets.Catch</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game.Rulesets.Mania\osu.Game.Rulesets.Mania.csproj">
-      <Project>{48F4582B-7687-4621-9CBE-5C24197CB536}</Project>
-      <Name>osu.Game.Rulesets.Mania</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game.Rulesets.Osu\osu.Game.Rulesets.Osu.csproj">
-      <Project>{C92A607B-1FDD-4954-9F92-03FF547D9080}</Project>
-      <Name>osu.Game.Rulesets.Osu</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game.Rulesets.Taiko\osu.Game.Rulesets.Taiko.csproj">
-      <Project>{F167E17A-7DE6-4AF5-B920-A5112296C695}</Project>
-      <Name>osu.Game.Rulesets.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>
-  <ItemGroup>
-    <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
-  </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

@@ -1,12 +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="Newtonsoft.Json" version="10.0.2" targetFramework="net45" />
-  <package id="NUnit" version="3.6.1" 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/AutomatedVisualTestGame.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.Framework.Testing;
-using osu.Game;
-
-namespace osu.Desktop.VisualTests
-{
-    public class AutomatedVisualTestGame : OsuGameBase
-    {
-        protected override void LoadComplete()
-        {
-            base.LoadComplete();
-
-            // Have to construct this here, rather than in the constructor, because
-            // we depend on some dependencies to be loaded within OsuGameBase.load().
-            Add(new TestRunner(new TestBrowser()));
-        }
-    }
-}

osu.Desktop.VisualTests/Platform/TestStorage.cs

@@ -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
-
-using osu.Framework;
-using osu.Framework.Desktop.Platform;
-using SQLite.Net;
-using SQLite.Net.Interop;
-using SQLite.Net.Platform.Generic;
-using SQLite.Net.Platform.Win32;
-
-namespace osu.Desktop.VisualTests.Platform
-{
-    public class TestStorage : DesktopStorage
-    {
-        public TestStorage(string baseName) : base(baseName)
-        {
-        }
-
-        public override SQLiteConnection GetDatabase(string name)
-        {
-            ISQLitePlatform platform;
-            if (RuntimeInfo.IsWindows)
-                platform = new SQLitePlatformWin32();
-            else
-                platform = new SQLitePlatformGeneric();
-            return new SQLiteConnection(platform, @":memory:");
-        }
-    }
-}

osu.Desktop.VisualTests/Program.cs

@@ -1,26 +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;
-
-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"))
-            {
-                if (benchmark)
-                    host.Run(new AutomatedVisualTestGame());
-                else
-                    host.Run(new VisualTestGame());
-            }
-        }
-    }
-}

osu.Desktop.VisualTests/Tests/TestCaseBeatmapDetails.cs

@@ -1,65 +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.Primitives;
-using osu.Framework.Testing;
-using osu.Game.Database;
-using osu.Game.Screens.Select;
-using System.Linq;
-
-namespace osu.Desktop.VisualTests.Tests
-{
-    internal class TestCaseBeatmapDetails : TestCase
-    {
-        public override string Description => "BeatmapDetails tab of BeatmapDetailArea";
-
-        private BeatmapDetails details;
-
-        public override void Reset()
-        {
-            base.Reset();
-
-            Add(details = new BeatmapDetails
-            {
-                RelativeSizeAxes = Axes.Both,
-                Padding = new MarginPadding(150),
-                Beatmap = new BeatmapInfo
-                {
-                    Version = "VisualTest",
-                    Metadata = new BeatmapMetadata
-                    {
-                        Source = "Some guy",
-                        Tags = "beatmap metadata example with a very very long list of tags and not much creativity",
-                    },
-                    Difficulty = new BeatmapDifficulty
-                    {
-                        CircleSize = 7,
-                        ApproachRate = 3.5f,
-                        OverallDifficulty = 5.7f,
-                        DrainRate = 1,
-                    },
-                    StarDifficulty = 5.3f,
-                    Metrics = new BeatmapMetrics
-                    {
-                        Ratings = Enumerable.Range(0,10),
-                        Fails = Enumerable.Range(lastRange, 100).Select(i => i % 12 - 6),
-                        Retries = Enumerable.Range(lastRange - 3, 100).Select(i => i % 12 - 6),
-                    },
-                },
-            });
-
-            AddRepeatStep("fail values", newRetryAndFailValues, 10);
-        }
-
-        private int lastRange = 1;
-
-        private void newRetryAndFailValues()
-        {
-            details.Beatmap.Metrics.Fails = Enumerable.Range(lastRange, 100).Select(i => i % 12 - 6);
-            details.Beatmap.Metrics.Retries = Enumerable.Range(lastRange - 3, 100).Select(i => i % 12 - 6);
-            details.Beatmap = details.Beatmap;
-            lastRange += 100;
-        }
-    }
-}

osu.Desktop.VisualTests/Tests/TestCaseKeyCounter.cs

@@ -1,104 +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.Testing;
-using osu.Framework.Graphics;
-using OpenTK.Input;
-using osu.Framework.Graphics.UserInterface;
-using osu.Framework.Configuration;
-using osu.Framework.Graphics.Containers;
-using OpenTK;
-using OpenTK.Graphics;
-using osu.Framework.MathUtils;
-using osu.Framework.Graphics.Sprites;
-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; };
-            AddStep("Add Random", () =>
-            {
-                Key key = (Key)((int)Key.A + RNG.Next(26));
-                kc.Add(new KeyCounterKeyboard(key));
-            });
-
-            TestSliderBar<int> sliderBar;
-
-            Add(new Container
-            {
-                Anchor = Anchor.TopRight,
-                Origin = Anchor.TopRight,
-                AutoSizeAxes = Axes.Both,
-                Children = new Drawable[]
-                {
-                    new SpriteText { Text = "FadeTime" },
-                    sliderBar =new TestSliderBar<int>
-                    {
-                        Width = 150,
-                        Height = 10,
-                        SelectionColor = Color4.Orange,
-                    }
-                }
-            });
-
-            sliderBar.Current.BindTo(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

@@ -1,42 +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.Game.Overlays.Mods;
-using osu.Framework.Testing;
-using osu.Game.Database;
-
-namespace osu.Desktop.VisualTests.Tests
-{
-    internal class TestCaseModSelectOverlay : TestCase
-    {
-        public override string Description => @"Tests the mod select overlay";
-
-        private ModSelectOverlay modSelect;
-        private RulesetDatabase rulesets;
-
-        [BackgroundDependencyLoader]
-        private void load(RulesetDatabase rulesets)
-        {
-            this.rulesets = rulesets;
-        }
-
-        public override void Reset()
-        {
-            base.Reset();
-
-            Add(modSelect = new ModSelectOverlay
-            {
-                RelativeSizeAxes = Axes.X,
-                Origin = Anchor.BottomCentre,
-                Anchor = Anchor.BottomCentre,
-            });
-
-            AddStep("Toggle", modSelect.ToggleVisibility);
-
-            foreach (var ruleset in rulesets.AllRulesets)
-                AddStep(ruleset.CreateInstance().Description, () => modSelect.Ruleset.Value = ruleset);
-        }
-    }
-}

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.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/TestCasePlayer.cs

@@ -1,100 +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.Testing;
-using osu.Game.Beatmaps;
-using OpenTK;
-using osu.Framework.Graphics.Sprites;
-using osu.Game.Database;
-using osu.Game.Rulesets.Objects;
-using osu.Game.Rulesets.Osu.Objects;
-using osu.Game.Screens.Play;
-using OpenTK.Graphics;
-using osu.Desktop.VisualTests.Beatmaps;
-using osu.Game.Rulesets.Osu.UI;
-
-namespace osu.Desktop.VisualTests.Tests
-{
-    internal class TestCasePlayer : TestCase
-    {
-        protected Player Player;
-        private BeatmapDatabase db;
-        private RulesetDatabase rulesets;
-
-        public override string Description => @"Showing everything to play the game.";
-
-        [BackgroundDependencyLoader]
-        private void load(BeatmapDatabase db, RulesetDatabase rulesets)
-        {
-            this.rulesets = rulesets;
-            this.db = db;
-        }
-
-        public override void Reset()
-        {
-            base.Reset();
-
-            WorkingBeatmap beatmap = null;
-
-            var beatmapInfo = db.Query<BeatmapInfo>().FirstOrDefault(b => b.RulesetID == 0);
-            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 : OsuPlayfield.BASE_SIZE.X,
-                        i % 4 < 2 ? 0 : OsuPlayfield.BASE_SIZE.Y),
-                        NewCombo = i % 4 == 0
-                    });
-
-                    time += 500;
-                }
-
-                Beatmap b = new Beatmap
-                {
-                    HitObjects = objects,
-                    BeatmapInfo = new BeatmapInfo
-                    {
-                        Difficulty = new BeatmapDifficulty(),
-                        Ruleset = rulesets.Query<RulesetInfo>().First(),
-                        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(Player = CreatePlayer(beatmap));
-        }
-
-        protected virtual Player CreatePlayer(WorkingBeatmap beatmap)
-        {
-            return new Player
-            {
-                Beatmap = beatmap
-            };
-        }
-    }
-}

osu.Desktop.VisualTests/Tests/TestCaseTaikoHitObjects.cs

@@ -1,121 +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 OpenTK;
-using OpenTK.Graphics;
-using osu.Framework.Graphics.Containers;
-using osu.Framework.Testing;
-using osu.Game.Rulesets.Taiko.Objects.Drawables.Pieces;
-
-namespace osu.Desktop.VisualTests.Tests
-{
-    internal class TestCaseTaikoHitObjects : TestCase
-    {
-        public override string Description => "Taiko hit objects";
-
-        private bool kiai;
-
-        public override void Reset()
-        {
-            base.Reset();
-
-            AddToggleStep("Kiai", b =>
-            {
-                kiai = !kiai;
-                updateKiaiState();
-            });
-
-            Add(new CirclePiece
-            {
-                Position = new Vector2(100, 100),
-                AccentColour = Color4.DarkRed,
-                KiaiMode = kiai,
-                Children = new[]
-                {
-                    new CentreHitSymbolPiece()
-                }
-            });
-
-            Add(new CirclePiece(true)
-            {
-                Position = new Vector2(350, 100),
-                AccentColour = Color4.DarkRed,
-                KiaiMode = kiai,
-                Children = new[]
-                {
-                    new CentreHitSymbolPiece()
-                }
-            });
-
-            Add(new CirclePiece
-            {
-                Position = new Vector2(100, 300),
-                AccentColour = Color4.DarkBlue,
-                KiaiMode = kiai,
-                Children = new[]
-                {
-                    new RimHitSymbolPiece()
-                }
-            });
-
-            Add(new CirclePiece(true)
-            {
-                Position = new Vector2(350, 300),
-                AccentColour = Color4.DarkBlue,
-                KiaiMode = kiai,
-                Children = new[]
-                {
-                    new RimHitSymbolPiece()
-                }
-            });
-
-            Add(new CirclePiece
-            {
-                Position = new Vector2(100, 500),
-                AccentColour = Color4.Orange,
-                KiaiMode = kiai,
-                Children = new[]
-                {
-                    new SwellSymbolPiece()
-                }
-            });
-
-            Add(new ElongatedCirclePiece
-            {
-                Position = new Vector2(575, 100),
-                AccentColour = Color4.Orange,
-                KiaiMode = kiai,
-                Length = 0.10f,
-                PlayfieldLengthReference = () => DrawSize.X
-            });
-
-            Add(new ElongatedCirclePiece(true)
-            {
-                Position = new Vector2(575, 300),
-                AccentColour = Color4.Orange,
-                KiaiMode = kiai,
-                Length = 0.10f,
-                PlayfieldLengthReference = () => DrawSize.X
-            });
-        }
-
-        private void updateKiaiState()
-        {
-            foreach (var c in Children.OfType<CirclePiece>())
-                c.KiaiMode = kiai;
-        }
-
-        private abstract class BaseCircle : Container
-        {
-            protected readonly CirclePiece Piece;
-
-            protected BaseCircle(CirclePiece piece)
-            {
-                Piece = piece;
-
-                Add(Piece);
-            }
-        }
-    }
-}

osu.Desktop.VisualTests/Tests/TestCaseTextAwesome.cs

@@ -1,51 +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.Testing;
-using osu.Framework.Graphics;
-using osu.Framework.Graphics.Containers;
-using osu.Framework.MathUtils;
-using osu.Game.Graphics;
-using OpenTK;
-using OpenTK.Graphics;
-
-namespace osu.Desktop.VisualTests.Tests
-{
-    internal class TestCaseTextAwesome : TestCase
-    {
-        public override string Description => @"Tests display of icons";
-
-        public override void Reset()
-        {
-            base.Reset();
-
-            FillFlowContainer flow;
-
-            Add(flow = new FillFlowContainer
-            {
-                RelativeSizeAxes = Axes.Both,
-                Size = new Vector2(0.5f),
-                Anchor = Anchor.Centre,
-                Origin = Anchor.Centre
-            });
-
-            int i = 50;
-            foreach (FontAwesome fa in Enum.GetValues(typeof(FontAwesome)))
-            {
-                flow.Add(new TextAwesome
-                {
-                    Icon = fa,
-                    TextSize = 60,
-                    Colour = new Color4(
-                        Math.Max(0.5f, RNG.NextSingle()),
-                        Math.Max(0.5f, RNG.NextSingle()),
-                        Math.Max(0.5f, RNG.NextSingle()),
-                        1)
-                });
-
-                if (i-- == 0) break;
-            }
-        }
-    }
-}

osu.Desktop.VisualTests/Tests/TestCaseTooltip.cs

@@ -1,92 +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.Containers;
-using osu.Framework.Testing;
-using osu.Game.Graphics.Sprites;
-using osu.Game.Graphics.UserInterface;
-using osu.Framework.Configuration;
-using OpenTK;
-using osu.Game.Graphics;
-
-namespace osu.Desktop.VisualTests.Tests
-{
-    internal class TestCaseTooltip : TestCase
-    {
-        public override string Description => "tests tooltips on various elements";
-
-        public override void Reset()
-        {
-            base.Reset();
-            OsuSliderBar<int> slider;
-            OsuSliderBar<double> sliderDouble;
-
-            const float width = 400;
-
-            Children = new Drawable[]
-            {
-                new FillFlowContainer
-                {
-                    RelativeSizeAxes = Axes.Both,
-                    Direction = FillDirection.Vertical,
-                    Spacing = new Vector2(0, 10),
-                    Children = new Drawable[]
-                    {
-                        new TooltipTextContainer("text with a tooltip"),
-                        new TooltipTextContainer("more text with another tooltip"),
-                        new TooltipTextbox
-                        {
-                            Text = "a textbox with a tooltip",
-                            Size = new Vector2(width,30),
-                        },
-                        slider = new OsuSliderBar<int>
-                        {
-                            Width = width,
-                        },
-                        sliderDouble = new OsuSliderBar<double>
-                        {
-                            Width = width,
-                        },
-                    },
-                },
-            };
-
-            slider.Current.BindTo(new BindableInt(5)
-            {
-                MaxValue = 10,
-                MinValue = 0
-            });
-
-            sliderDouble.Current.BindTo(new BindableDouble(0.5)
-            {
-                MaxValue = 1,
-                MinValue = 0
-            });
-        }
-
-        private class TooltipTextContainer : Container, IHasTooltip
-        {
-            private readonly OsuSpriteText text;
-
-            public string TooltipText => text.Text;
-
-            public TooltipTextContainer(string tooltipText)
-            {
-                AutoSizeAxes = Axes.Both;
-                Children = new[]
-                {
-                    text = new OsuSpriteText
-                    {
-                        Text = tooltipText,
-                    }
-                };
-            }
-        }
-
-        private class TooltipTextbox : OsuTextBox, IHasTooltip
-        {
-            public string TooltipText => Text;
-        }
-    }
-}

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.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

@@ -1,244 +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>
-    <LangVersion>6</LangVersion>
-  </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="Newtonsoft.Json, Version=10.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\Newtonsoft.Json.10.0.2\lib\net45\Newtonsoft.Json.dll</HintPath>
-    </Reference>
-    <Reference Include="OpenTK, Version=2.0.0.0, Culture=neutral, PublicKeyToken=bad199fe84eb3df4, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\ppy.OpenTK.2.0.50727.1341\lib\net45\OpenTK.dll</HintPath>
-    </Reference>
-    <Reference Include="SharpCompress, Version=0.15.2.0, Culture=neutral, PublicKeyToken=afb0a02973931d96, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\SharpCompress.0.15.2\lib\net45\SharpCompress.dll</HintPath>
-    </Reference>
-    <Reference Include="SQLite.Net, Version=3.1.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>$(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="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>
-    <Reference Include="System.Drawing" />
-    <Reference Include="System.Xml" />
-  </ItemGroup>
-  <ItemGroup>
-    <None Include="..\osu.licenseheader">
-      <Link>osu.licenseheader</Link>
-    </None>
-    <None Include="packages.config" />
-    <None Include="OpenTK.dll.config" />
-  </ItemGroup>
-  <ItemGroup>
-    <BootstrapperPackage Include="Microsoft.Net.Client.3.5">
-      <Visible>False</Visible>
-      <ProductName>.NET Framework 3.5 SP1 Client Profile</ProductName>
-      <Install>false</Install>
-    </BootstrapperPackage>
-    <BootstrapperPackage Include="Microsoft.Net.Framework.2.0">
-      <Visible>False</Visible>
-      <ProductName>.NET Framework 2.0 %28x86%29</ProductName>
-      <Install>true</Install>
-    </BootstrapperPackage>
-    <BootstrapperPackage Include="Microsoft.Net.Framework.3.0">
-      <Visible>False</Visible>
-      <ProductName>.NET Framework 3.0 %28x86%29</ProductName>
-      <Install>false</Install>
-    </BootstrapperPackage>
-    <BootstrapperPackage Include="Microsoft.Net.Framework.3.5">
-      <Visible>False</Visible>
-      <ProductName>.NET Framework 3.5</ProductName>
-      <Install>false</Install>
-    </BootstrapperPackage>
-    <BootstrapperPackage Include="Microsoft.Net.Framework.3.5.SP1">
-      <Visible>False</Visible>
-      <ProductName>.NET Framework 3.5 SP1</ProductName>
-      <Install>false</Install>
-    </BootstrapperPackage>
-  </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.Testing\osu.Framework.Testing.csproj">
-      <Project>{007b2356-ab6f-4bd9-96d5-116fc2dce69a}</Project>
-      <Name>osu.Framework.Testing</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.Game.Rulesets.Osu\osu.Game.Rulesets.Osu.csproj">
-      <Project>{c92a607b-1fdd-4954-9f92-03ff547d9080}</Project>
-      <Name>osu.Game.Rulesets.Osu</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game.Rulesets.Catch\osu.Game.Rulesets.Catch.csproj">
-      <Project>{58f6c80c-1253-4a0e-a465-b8c85ebeadf3}</Project>
-      <Name>osu.Game.Rulesets.Catch</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game.Rulesets.Mania\osu.Game.Rulesets.Mania.csproj">
-      <Project>{48f4582b-7687-4621-9cbe-5c24197cb536}</Project>
-      <Name>osu.Game.Rulesets.Mania</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\osu.Game.Rulesets.Taiko\osu.Game.Rulesets.Taiko.csproj">
-      <Project>{f167e17a-7de6-4af5-b920-a5112296c695}</Project>
-      <Name>osu.Game.Rulesets.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="AutomatedVisualTestGame.cs" />
-    <Compile Include="Program.cs" />
-    <Compile Include="Tests\TestCaseChatDisplay.cs" />
-    <Compile Include="Tests\TestCaseBeatmapDetails.cs" />
-    <Compile Include="Tests\TestCaseDrawings.cs" />
-    <Compile Include="Tests\TestCaseGamefield.cs" />
-    <Compile Include="Tests\TestCaseGraph.cs" />
-    <Compile Include="Tests\TestCaseMenuOverlays.cs" />
-    <Compile Include="Tests\TestCaseMusicController.cs" />
-    <Compile Include="Tests\TestCaseNotificationManager.cs" />
-    <Compile Include="Tests\TestCasePlayer.cs" />
-    <Compile Include="Tests\TestCaseHitObjects.cs" />
-    <Compile Include="Tests\TestCaseKeyCounter.cs" />
-    <Compile Include="Tests\TestCaseMenuButtonSystem.cs" />
-    <Compile Include="Tests\TestCaseReplay.cs" />
-    <Compile Include="Tests\TestCaseResults.cs" />
-    <Compile Include="Tests\TestCaseScoreCounter.cs" />
-    <Compile Include="Tests\TestCaseTabControl.cs" />
-    <Compile Include="Tests\TestCaseTaikoHitObjects.cs" />
-    <Compile Include="Tests\TestCaseTaikoPlayfield.cs" />
-    <Compile Include="Tests\TestCaseTextAwesome.cs" />
-    <Compile Include="Tests\TestCasePlaySongSelect.cs" />
-    <Compile Include="Tests\TestCaseTooltip.cs" />
-    <Compile Include="Tests\TestCaseTwoLayerButton.cs" />
-    <Compile Include="VisualTestGame.cs" />
-    <Compile Include="Platform\TestStorage.cs" />
-    <Compile Include="Tests\TestCaseOptions.cs" />
-    <Compile Include="Tests\TestCaseSongProgress.cs" />
-    <Compile Include="Tests\TestCaseModSelectOverlay.cs" />
-    <Compile Include="Tests\TestCaseDialogOverlay.cs" />
-    <Compile Include="Tests\TestCaseBeatmapOptionsOverlay.cs" />
-    <Compile Include="Tests\TestCaseLeaderboard.cs" />
-    <Compile Include="Beatmaps\TestWorkingBeatmap.cs" />
-    <Compile Include="Tests\TestCaseBeatmapDetailArea.cs" />
-  </ItemGroup>
-  <ItemGroup />
-  <ItemGroup />
-  <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.VisualTests/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="10.0.2" targetFramework="net45" />
-  <package id="ppy.OpenTK" version="2.0.50727.1341" targetFramework="net45" />
-  <package id="SharpCompress" version="0.15.2" 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/Beatmaps/IO/LegacyFilesystemReader.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 System.IO;
-using System.Linq;
-using osu.Game.Beatmaps.IO;
-
-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; }
-
-        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();
-        }
-
-        public override Stream GetStream(string name)
-        {
-            return File.OpenRead(Path.Combine(basePath, name));
-        }
-
-        public override void Dispose()
-        {
-            // no-op
-        }
-    }
-}

osu.Desktop/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.Desktop/OsuGameDesktop.cs

@@ -1,40 +1,89 @@
 // 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;
 using System.Drawing;
 using System.IO;
+using System.Linq;
+using System.Reflection;
 using System.Threading.Tasks;
-using osu.Game.Screens.Menu;
+using Microsoft.Win32;
+using osu.Desktop.Overlays;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Platform;
+using osu.Game;
+using OpenTK.Input;
 
 namespace osu.Desktop
 {
     internal class OsuGameDesktop : OsuGame
     {
-        private readonly VersionManager versionManager;
-
         public OsuGameDesktop(string[] args = null)
             : base(args)
         {
-            versionManager = new VersionManager { Depth = int.MinValue };
+        }
+
+        public override Storage GetStorageForStableInstall()
+        {
+            try
+            {
+                return new StableStorage();
+            }
+            catch
+            {
+                return null;
+            }
+        }
+
+        /// <summary>
+        /// A method of accessing an osu-stable install in a controlled fashion.
+        /// </summary>
+        private class StableStorage : DesktopStorage
+        {
+            protected override string LocateBasePath()
+            {
+                Func<string, bool> checkExists = p => Directory.Exists(Path.Combine(p, "Songs"));
+
+                string stableInstallPath;
+
+                try
+                {
+                    using (RegistryKey key = Registry.ClassesRoot.OpenSubKey("osu"))
+                        stableInstallPath = key?.OpenSubKey(@"shell\open\command")?.GetValue(String.Empty).ToString().Split('"')[1].Replace("osu!.exe", "");
+
+                    if (checkExists(stableInstallPath))
+                        return stableInstallPath;
+                }
+                catch
+                {
+                }
+
+                stableInstallPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), @"osu!");
+                if (checkExists(stableInstallPath))
+                    return stableInstallPath;
+
+                stableInstallPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), ".osu");
+                if (checkExists(stableInstallPath))
+                    return stableInstallPath;
+
+                return null;
+            }
+
+            public StableStorage()
+                : base(string.Empty)
+            {
+            }
         }
 
         protected override void LoadComplete()
         {
             base.LoadComplete();
 
-            LoadComponentAsync(versionManager);
-            ScreenChanged += s =>
+            LoadComponentAsync(new VersionManager { Depth = int.MinValue }, v =>
             {
-                if (!versionManager.IsAlive && s is Intro)
-                    Add(versionManager);
-            };
+                Add(v);
+                v.State = Visibility.Visible;
+            });
         }
 
         public override void SetHost(GameHost host)
@@ -43,43 +92,29 @@ namespace osu.Desktop
             var desktopWindow = host.Window as DesktopGameWindow;
             if (desktopWindow != null)
             {
-                desktopWindow.CursorState = CursorState.Hidden;
+                desktopWindow.CursorState |= CursorState.Hidden;
 
-                desktopWindow.Icon = Icon.ExtractAssociatedIcon(Assembly.GetExecutingAssembly().Location);
+                desktopWindow.Icon = new Icon(Assembly.GetExecutingAssembly().GetManifestResourceStream(GetType(), "lazer.ico"));
                 desktopWindow.Title = Name;
 
-                desktopWindow.DragEnter += dragEnter;
-                desktopWindow.DragDrop += dragDrop;
+                desktopWindow.FileDrop += fileDrop;
             }
         }
 
-        private void dragDrop(DragEventArgs e)
+        private void fileDrop(object sender, FileDropEventArgs 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();
+            var filePaths = new [] { e.FileName };
 
             if (filePaths.All(f => Path.GetExtension(f) == @".osz"))
-                Task.Run(() => BeatmapDatabase.Import(filePaths));
+                Task.Run(() => BeatmapManager.Import(filePaths));
             else if (filePaths.All(f => Path.GetExtension(f) == @".osr"))
                 Task.Run(() =>
                 {
-                    var score = ScoreDatabase.ReadReplayFile(filePaths.First());
+                    var score = ScoreStore.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/OsuTestBrowser.cs

@@ -6,9 +6,9 @@ using osu.Framework.Testing;
 using osu.Game;
 using osu.Game.Screens.Backgrounds;
 
-namespace osu.Desktop.VisualTests
+namespace osu.Desktop
 {
-    internal class VisualTestGame : OsuGameBase
+    internal class OsuTestBrowser : OsuGameBase
     {
         protected override void LoadComplete()
         {
@@ -24,12 +24,7 @@ namespace osu.Desktop.VisualTests
         public override void SetHost(GameHost host)
         {
             base.SetHost(host);
-
-            host.UpdateThread.InactiveHz = host.UpdateThread.ActiveHz;
-            host.DrawThread.InactiveHz = host.DrawThread.ActiveHz;
-            host.InputThread.InactiveHz = host.InputThread.ActiveHz;
-
-            host.Window.CursorState = CursorState.Hidden;
+            host.Window.CursorState |= CursorState.Hidden;
         }
     }
-}
+}

osu.Desktop/Overlays/VersionManager.cs

@@ -2,42 +2,49 @@
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
 using System;
+using System.Diagnostics;
+using System.Net.Http;
 using osu.Framework.Allocation;
+using osu.Framework.Development;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Colour;
 using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Framework.Graphics.Sprites;
+using osu.Framework.Graphics.Textures;
+using osu.Framework.Logging;
+using osu.Game;
+using osu.Game.Configuration;
+using osu.Game.Graphics;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Overlays;
 using osu.Game.Overlays.Notifications;
-using Squirrel;
-using osu.Framework.Graphics.Sprites;
-using osu.Framework.Graphics.Textures;
-using osu.Game.Graphics;
 using OpenTK;
 using OpenTK.Graphics;
-using System.Net.Http;
-using osu.Framework.Logging;
-using osu.Game;
+using Squirrel;
 
 namespace osu.Desktop.Overlays
 {
     public class VersionManager : OverlayContainer
     {
         private UpdateManager updateManager;
-        private NotificationManager notificationManager;
-
-        protected override bool HideOnEscape => false;
+        private NotificationOverlay notificationOverlay;
+        private OsuConfigManager config;
+        private OsuGameBase game;
 
         public override bool HandleInput => false;
 
         [BackgroundDependencyLoader]
-        private void load(NotificationManager notification, OsuColour colours, TextureStore textures, OsuGameBase game)
+        private void load(NotificationOverlay notification, OsuColour colours, TextureStore textures, OsuGameBase game, OsuConfigManager config)
         {
-            notificationManager = notification;
+            notificationOverlay = notification;
+            this.config = config;
+            this.game = game;
 
             AutoSizeAxes = Axes.Both;
             Anchor = Anchor.BottomCentre;
             Origin = Anchor.BottomCentre;
+
             Alpha = 0;
 
             Children = new Drawable[]
@@ -64,7 +71,7 @@ namespace osu.Desktop.Overlays
                                 },
                                 new OsuSpriteText
                                 {
-                                    Colour = game.IsDebug ? colours.Red : Color4.White,
+                                    Colour = DebugUtils.IsDebug ? colours.Red : Color4.White,
                                     Text = game.Version
                                 },
                             }
@@ -95,7 +102,37 @@ namespace osu.Desktop.Overlays
         protected override void LoadComplete()
         {
             base.LoadComplete();
-            State = Visibility.Visible;
+
+            var version = game.Version;
+            var lastVersion = config.Get<string>(OsuSetting.Version);
+            if (game.IsDeployedBuild && version != lastVersion)
+            {
+                config.Set(OsuSetting.Version, version);
+
+                // only show a notification if we've previously saved a version to the config file (ie. not the first run).
+                if (!string.IsNullOrEmpty(lastVersion))
+                    Scheduler.AddDelayed(() => notificationOverlay.Post(new UpdateCompleteNotification(version)), 5000);
+            }
+        }
+
+        private class UpdateCompleteNotification : SimpleNotification
+        {
+            public UpdateCompleteNotification(string version)
+            {
+                Text = $"You are now running osu!lazer {version}.\nClick to see what's new!";
+                Icon = FontAwesome.fa_check_square;
+                Activated = delegate
+                {
+                    Process.Start($"https://github.com/ppy/osu/releases/tag/v{version}");
+                    return true;
+                };
+            }
+
+            [BackgroundDependencyLoader]
+            private void load(OsuColour colours)
+            {
+                IconBackgound.Colour = colours.BlueDark;
+            }
         }
 
         protected override void Dispose(bool isDisposing)
@@ -121,7 +158,7 @@ namespace osu.Desktop.Overlays
                 if (notification == null)
                 {
                     notification = new UpdateProgressNotification { State = ProgressNotificationState.Active };
-                    Schedule(() => notificationManager.Post(notification));
+                    Schedule(() => notificationOverlay.Post(notification));
                 }
 
                 Schedule(() =>
@@ -180,7 +217,7 @@ namespace osu.Desktop.Overlays
 
         protected override void PopIn()
         {
-            FadeIn(1000);
+            this.FadeIn(1000);
         }
 
         protected override void PopOut()
@@ -191,7 +228,7 @@ namespace osu.Desktop.Overlays
         {
             private OsuGame game;
 
-            protected override Notification CreateCompletionNotification() => new ProgressCompletionNotification()
+            protected override Notification CreateCompletionNotification() => new ProgressCompletionNotification
             {
                 Text = @"Update ready to install. Click to restart!",
                 Activated = () =>
@@ -207,20 +244,20 @@ namespace osu.Desktop.Overlays
             {
                 this.game = game;
 
-                IconContent.Add(new Drawable[]
+                IconContent.AddRange(new Drawable[]
                 {
                     new Box
                     {
                         RelativeSizeAxes = Axes.Both,
-                        ColourInfo = ColourInfo.GradientVertical(colours.YellowDark, colours.Yellow)
+                        Colour = ColourInfo.GradientVertical(colours.YellowDark, colours.Yellow)
                     },
-                    new TextAwesome
+                    new SpriteIcon
                     {
                         Anchor = Anchor.Centre,
                         Origin = Anchor.Centre,
                         Icon = FontAwesome.fa_upload,
                         Colour = Color4.White,
-                        TextSize = 20
+                        Size = new Vector2(20),
                     }
                 });
             }

osu.Desktop/Program.cs

@@ -3,9 +3,9 @@
 
 using System;
 using System.IO;
-using osu.Desktop.Beatmaps.IO;
-using osu.Framework.Desktop;
-using osu.Framework.Desktop.Platform;
+using System.Linq;
+using osu.Framework;
+using osu.Framework.Platform;
 using osu.Game.IPC;
 
 namespace osu.Desktop
@@ -15,8 +15,6 @@ namespace osu.Desktop
         [STAThread]
         public static int Main(string[] args)
         {
-            LegacyFilesystemReader.Register();
-
             // Back up the cwd before DesktopGameHost changes it
             var cwd = Environment.CurrentDirectory;
 
@@ -36,7 +34,16 @@ namespace osu.Desktop
                 }
                 else
                 {
-                    host.Run(new OsuGameDesktop(args));
+                    switch (args.FirstOrDefault() ?? string.Empty)
+                    {
+                        case "--tests":
+                            host.Run(new OsuTestBrowser());
+                            break;
+                        default:
+                            host.Run(new OsuGameDesktop(args));
+                            break;
+                    }
+
                 }
                 return 0;
             }

osu.Desktop/Properties/AssemblyInfo.cs

@@ -22,7 +22,7 @@ using System.Runtime.InteropServices;
 [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: Guid("b0cb1d48-e4c2-4612-a347-beea7b1a71e7")]
 
 [assembly: AssemblyVersion("0.0.0")]
 [assembly: AssemblyFileVersion("0.0.0")]

osu.Desktop/app.config

@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" /></startup>
+  <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>
+      <dependentAssembly>
+        <assemblyIdentity name="System.ValueTuple" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Security.Cryptography.Algorithms" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.IO.FileSystem" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.IO.Compression" publicKeyToken="b77a5c561934e089" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.2.0" newVersion="4.1.2.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.IO.FileSystem.Primitives" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Security.Cryptography.Primitives" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.1.0" newVersion="4.0.1.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Xml.XPath.XDocument" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+      </dependentAssembly>
+    </assemblyBinding>
+  </runtime>
+</configuration>

osu.Desktop/osu.Desktop.csproj

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="4.0">
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="12.0">
   <PropertyGroup>
-    <ProjectGuid>{2A66DD92-ADB1-4994-89E2-C94E04ACDA0D}</ProjectGuid>
+    <ProjectGuid>{419659FD-72EA-4678-9EB8-B22A746CED70}</ProjectGuid>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <OutputType>WinExe</OutputType>
@@ -22,7 +22,7 @@
     <RunPostBuildEvent>OnOutputUpdated</RunPostBuildEvent>
     <SignAssembly>false</SignAssembly>
     <TargetZone>LocalIntranet</TargetZone>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <PublishUrl>publish\</PublishUrl>
     <Install>true</Install>
@@ -57,7 +57,6 @@
     <UseVSHostingProcess>false</UseVSHostingProcess>
     <PlatformTarget>AnyCPU</PlatformTarget>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
     <RunCodeAnalysis>false</RunCodeAnalysis>
     <Prefer32Bit>false</Prefer32Bit>
     <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
@@ -76,7 +75,6 @@
     <UseVSHostingProcess>false</UseVSHostingProcess>
     <PlatformTarget>AnyCPU</PlatformTarget>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
     <Prefer32Bit>false</Prefer32Bit>
     <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
   </PropertyGroup>
@@ -90,6 +88,20 @@
   <PropertyGroup>
     <ApplicationManifest>Properties\app.manifest</ApplicationManifest>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'VisualTests|AnyCPU'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG</DefineConstants>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+    <WarningLevel>0</WarningLevel>
+    <NoStdLib>true</NoStdLib>
+    <DebugType>full</DebugType>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+    <LangVersion>6</LangVersion>
+    <ErrorReport>prompt</ErrorReport>
+    <StartArguments>--tests</StartArguments>
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="DeltaCompressionDotNet, Version=1.1.0.0, Culture=neutral, PublicKeyToken=1d14d6e5194e7f4a, processorArchitecture=MSIL">
       <HintPath>$(SolutionDir)\packages\DeltaCompressionDotNet.1.1.0\lib\net20\DeltaCompressionDotNet.dll</HintPath>
@@ -121,38 +133,51 @@
     </Reference>
     <Reference Include="mscorlib" />
     <Reference Include="NuGet.Squirrel, Version=3.0.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\squirrel.windows.1.5.2\lib\Net45\NuGet.Squirrel.dll</HintPath>
+      <HintPath>$(SolutionDir)\packages\squirrel.windows.1.7.8\lib\Net45\NuGet.Squirrel.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="OpenTK, Version=2.0.0.0, Culture=neutral, PublicKeyToken=bad199fe84eb3df4, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\ppy.OpenTK.2.0.50727.1341\lib\net45\OpenTK.dll</HintPath>
+    <Reference Include="OpenTK, Version=3.0.0.0, Culture=neutral, PublicKeyToken=bad199fe84eb3df4, processorArchitecture=MSIL">
+      <HintPath>$(SolutionDir)\packages\OpenTK.3.0.0-git00009\lib\net20\OpenTK.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="SharpCompress, Version=0.18.1.0, Culture=neutral, PublicKeyToken=afb0a02973931d96, processorArchitecture=MSIL">
+      <HintPath>$(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="SQLitePCLRaw.batteries_green, Version=1.0.0.0, Culture=neutral, PublicKeyToken=a84b7dcfb1391f7f, processorArchitecture=MSIL">
+      <HintPath>$(SolutionDir)\packages\SQLitePCLRaw.bundle_green.1.1.8\lib\net45\SQLitePCLRaw.batteries_green.dll</HintPath>
+    </Reference>
+    <Reference Include="SQLitePCLRaw.batteries_v2, Version=1.0.0.0, Culture=neutral, PublicKeyToken=8226ea5df37bcae9, processorArchitecture=MSIL">
+      <HintPath>$(SolutionDir)\packages\SQLitePCLRaw.bundle_green.1.1.8\lib\net45\SQLitePCLRaw.batteries_v2.dll</HintPath>
+    </Reference>
+    <Reference Include="SQLitePCLRaw.core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=1488e028ca7ab535, processorArchitecture=MSIL">
+      <HintPath>$(SolutionDir)\packages\SQLitePCLRaw.core.1.1.8\lib\net45\SQLitePCLRaw.core.dll</HintPath>
+    </Reference>
+    <Reference Include="SQLitePCLRaw.provider.e_sqlite3, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9c301db686d0bd12, processorArchitecture=MSIL">
+      <HintPath>$(SolutionDir)\packages\SQLitePCLRaw.provider.e_sqlite3.net45.1.1.8\lib\net45\SQLitePCLRaw.provider.e_sqlite3.dll</HintPath>
+    </Reference>
+    <Reference Include="Squirrel, Version=1.7.8.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>$(SolutionDir)\packages\squirrel.windows.1.7.8\lib\Net45\Squirrel.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Drawing" />
     <Reference Include="System.Net.Http" />
-    <Reference Include="System.Net.Http.Extensions, Version=2.2.29.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\Microsoft.Net.Http.2.2.29\lib\net45\System.Net.Http.Extensions.dll</HintPath>
+    <Reference Include="System.ValueTuple, Version=4.0.2.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51">
+      <HintPath>$(SolutionDir)\packages\System.ValueTuple.4.4.0\lib\net461\System.ValueTuple.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="System.Net.Http.Primitives, Version=4.2.29.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\Microsoft.Net.Http.2.2.29\lib\net45\System.Net.Http.Primitives.dll</HintPath>
-      <Private>True</Private>
-    </Reference>
-    <Reference Include="System.Net.Http.WebRequest" />
     <Reference Include="System.Windows.Forms" />
   </ItemGroup>
   <ItemGroup>
     <None Include="..\osu.licenseheader">
       <Link>osu.licenseheader</Link>
     </None>
+    <None Include="app.config" />
     <None Include="OpenTK.dll.config" />
     <None Include="osu!.res" />
     <None Include="packages.config" />
@@ -186,10 +211,16 @@
     </BootstrapperPackage>
   </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>
+    <Compile Include="OsuGameDesktop.cs" />
+    <Compile Include="OsuTestBrowser.cs" />
+    <Compile Include="Overlays\VersionManager.cs" />
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="lazer.ico" />
+  </ItemGroup>
+  <ItemGroup>
     <ProjectReference Include="..\osu-framework\osu.Framework\osu.Framework.csproj">
       <Project>{c76bf5b3-985e-4d39-95fe-97c9c879b83a}</Project>
       <Name>osu.Framework</Name>
@@ -198,10 +229,6 @@
       <Project>{d9a367c9-4c1a-489f-9b05-a0cea2b53b58}</Project>
       <Name>osu.Game.Resources</Name>
     </ProjectReference>
-    <ProjectReference Include="..\osu.Game.Rulesets.Osu\osu.Game.Rulesets.Osu.csproj">
-      <Project>{c92a607b-1fdd-4954-9f92-03ff547d9080}</Project>
-      <Name>osu.Game.Rulesets.Osu</Name>
-    </ProjectReference>
     <ProjectReference Include="..\osu.Game.Rulesets.Catch\osu.Game.Rulesets.Catch.csproj">
       <Project>{58f6c80c-1253-4a0e-a465-b8c85ebeadf3}</Project>
       <Name>osu.Game.Rulesets.Catch</Name>
@@ -210,25 +237,23 @@
       <Project>{48f4582b-7687-4621-9cbe-5c24197cb536}</Project>
       <Name>osu.Game.Rulesets.Mania</Name>
     </ProjectReference>
+    <ProjectReference Include="..\osu.Game.Rulesets.Osu\osu.Game.Rulesets.Osu.csproj">
+      <Project>{c92a607b-1fdd-4954-9f92-03ff547d9080}</Project>
+      <Name>osu.Game.Rulesets.Osu</Name>
+    </ProjectReference>
     <ProjectReference Include="..\osu.Game.Rulesets.Taiko\osu.Game.Rulesets.Taiko.csproj">
       <Project>{f167e17a-7de6-4af5-b920-a5112296c695}</Project>
       <Name>osu.Game.Rulesets.Taiko</Name>
     </ProjectReference>
+    <ProjectReference Include="..\osu.Game.Tests\osu.Game.Tests.csproj">
+      <Project>{54377672-20b1-40af-8087-5cf73bf3953a}</Project>
+      <Name>osu.Game.Tests</Name>
+    </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>
     </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="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
        Other similar extension points exist, see Microsoft.Common.targets.
@@ -249,4 +274,15 @@
     <PostBuildEvent>
     </PostBuildEvent>
   </PropertyGroup>
+  <Import Project="$(SolutionDir)\packages\SQLitePCLRaw.lib.e_sqlite3.linux.1.1.8\build\net35\SQLitePCLRaw.lib.e_sqlite3.linux.targets" Condition="Exists('$(SolutionDir)\packages\SQLitePCLRaw.lib.e_sqlite3.linux.1.1.8\build\net35\SQLitePCLRaw.lib.e_sqlite3.linux.targets')" />
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('$(SolutionDir)\packages\SQLitePCLRaw.lib.e_sqlite3.linux.1.1.8\build\net35\SQLitePCLRaw.lib.e_sqlite3.linux.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\packages\SQLitePCLRaw.lib.e_sqlite3.linux.1.1.8\build\net35\SQLitePCLRaw.lib.e_sqlite3.linux.targets'))" />
+    <Error Condition="!Exists('$(SolutionDir)\packages\SQLitePCLRaw.lib.e_sqlite3.osx.1.1.8\build\net35\SQLitePCLRaw.lib.e_sqlite3.osx.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\packages\SQLitePCLRaw.lib.e_sqlite3.osx.1.1.8\build\net35\SQLitePCLRaw.lib.e_sqlite3.osx.targets'))" />
+    <Error Condition="!Exists('$(SolutionDir)\packages\SQLitePCLRaw.lib.e_sqlite3.v110_xp.1.1.8\build\net35\SQLitePCLRaw.lib.e_sqlite3.v110_xp.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\packages\SQLitePCLRaw.lib.e_sqlite3.v110_xp.1.1.8\build\net35\SQLitePCLRaw.lib.e_sqlite3.v110_xp.targets'))" />
+  </Target>
+  <Import Project="$(SolutionDir)\packages\SQLitePCLRaw.lib.e_sqlite3.osx.1.1.8\build\net35\SQLitePCLRaw.lib.e_sqlite3.osx.targets" Condition="Exists('$(SolutionDir)\packages\SQLitePCLRaw.lib.e_sqlite3.osx.1.1.8\build\net35\SQLitePCLRaw.lib.e_sqlite3.osx.targets')" />
+  <Import Project="$(SolutionDir)\packages\SQLitePCLRaw.lib.e_sqlite3.v110_xp.1.1.8\build\net35\SQLitePCLRaw.lib.e_sqlite3.v110_xp.targets" Condition="Exists('$(SolutionDir)\packages\SQLitePCLRaw.lib.e_sqlite3.v110_xp.1.1.8\build\net35\SQLitePCLRaw.lib.e_sqlite3.v110_xp.targets')" />
 </Project>

osu.Desktop/packages.config

@@ -5,9 +5,16 @@ Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/maste
 -->
 <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="ppy.OpenTK" version="2.0.50727.1341" targetFramework="net45" />
+  <package id="OpenTK" version="3.0.0-git00009" targetFramework="net461" />
+  <package id="SharpCompress" version="0.18.1" targetFramework="net461" />
   <package id="Splat" version="2.0.0" targetFramework="net45" />
-  <package id="squirrel.windows" version="1.5.2" targetFramework="net45" />
+  <package id="SQLitePCLRaw.bundle_green" version="1.1.8" targetFramework="net461" />
+  <package id="SQLitePCLRaw.core" version="1.1.8" targetFramework="net461" />
+  <package id="SQLitePCLRaw.lib.e_sqlite3.linux" version="1.1.8" targetFramework="net461" />
+  <package id="SQLitePCLRaw.lib.e_sqlite3.osx" version="1.1.8" targetFramework="net461" />
+  <package id="SQLitePCLRaw.lib.e_sqlite3.v110_xp" version="1.1.8" targetFramework="net461" />
+  <package id="SQLitePCLRaw.provider.e_sqlite3.net45" version="1.1.8" targetFramework="net461" />
+  <package id="squirrel.windows" version="1.7.8" targetFramework="net461" />
+  <package id="System.ValueTuple" version="4.4.0" targetFramework="net461" />
 </packages>

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

@@ -5,8 +5,8 @@ using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Catch.Objects;
 using System.Collections.Generic;
 using System;
+using osu.Game.Rulesets.Catch.UI;
 using osu.Game.Rulesets.Objects.Types;
-using osu.Game.Rulesets.Beatmaps;
 using osu.Game.Rulesets.Objects;
 
 namespace osu.Game.Rulesets.Catch.Beatmaps
@@ -15,9 +15,40 @@ namespace osu.Game.Rulesets.Catch.Beatmaps
     {
         protected override IEnumerable<Type> ValidConversionTypes { get; } = new[] { typeof(IHasXPosition) };
 
-        protected override IEnumerable<CatchBaseHit> ConvertHitObject(HitObject original, Beatmap beatmap)
+        protected override IEnumerable<CatchBaseHit> ConvertHitObject(HitObject obj, Beatmap beatmap)
         {
-            yield return null;
+            var curveData = obj as IHasCurve;
+            var positionData = obj as IHasPosition;
+            var comboData = obj as IHasCombo;
+
+            if (positionData == null)
+                yield break;
+
+            if (curveData != null)
+            {
+                yield return new JuiceStream
+                {
+                    StartTime = obj.StartTime,
+                    Samples = obj.Samples,
+                    ControlPoints = curveData.ControlPoints,
+                    CurveType = curveData.CurveType,
+                    Distance = curveData.Distance,
+                    RepeatSamples = curveData.RepeatSamples,
+                    RepeatCount = curveData.RepeatCount,
+                    X = positionData.X / CatchPlayfield.BASE_WIDTH,
+                    NewCombo = comboData?.NewCombo ?? false
+                };
+
+                yield break;
+            }
+
+            yield return new Fruit
+            {
+                StartTime = obj.StartTime,
+                Samples = obj.Samples,
+                NewCombo = comboData?.NewCombo ?? false,
+                X = positionData.X / CatchPlayfield.BASE_WIDTH
+            };
         }
     }
 }

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

@@ -0,0 +1,38 @@
+// 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;
+
+namespace osu.Game.Rulesets.Catch.Beatmaps
+{
+    internal class CatchBeatmapProcessor : BeatmapProcessor<CatchBaseHit>
+    {
+        public override void PostProcess(Beatmap<CatchBaseHit> beatmap)
+        {
+            if (beatmap.ComboColors.Count == 0)
+                return;
+
+            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

@@ -2,7 +2,6 @@
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
 using osu.Game.Beatmaps;
-using osu.Game.Rulesets.Beatmaps;
 using osu.Game.Rulesets.Catch.Beatmaps;
 using osu.Game.Rulesets.Catch.Objects;
 using System.Collections.Generic;

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

@@ -1,23 +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.Rulesets.Catch.Mods;
 using osu.Game.Rulesets.Catch.UI;
 using osu.Game.Rulesets.Mods;
 using osu.Game.Rulesets.UI;
-using osu.Game.Screens.Play;
 using System.Collections.Generic;
-using osu.Game.Rulesets.Catch.Scoring;
-using osu.Game.Rulesets.Scoring;
+using osu.Framework.Graphics;
+using osu.Framework.Input.Bindings;
 
 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)
         {
@@ -28,7 +36,14 @@ namespace osu.Game.Rulesets.Catch
                     {
                         new CatchModEasy(),
                         new CatchModNoFail(),
-                        new CatchModHalfTime(),
+                        new MultiMod
+                        {
+                            Mods = new Mod[]
+                            {
+                                new CatchModHalfTime(),
+                                new CatchModDaycore(),
+                            },
+                        },
                     };
 
                 case ModType.DifficultyIncrease:
@@ -78,19 +93,15 @@ namespace osu.Game.Rulesets.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 Drawable CreateIcon() => new SpriteIcon { Icon = FontAwesome.fa_osu_fruits_o };
 
         public override DifficultyCalculator CreateDifficultyCalculator(Beatmap beatmap) => new CatchDifficultyCalculator(beatmap);
 
-        public override ScoreProcessor CreateScoreProcessor() => new CatchScoreProcessor();
-
         public override int LegacyID => 2;
+
+        public CatchRuleset(RulesetInfo rulesetInfo)
+            : base(rulesetInfo)
+        {
+        }
     }
 }

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

@@ -7,8 +7,6 @@ namespace osu.Game.Rulesets.Catch.Judgements
 {
     public class CatchJudgement : Judgement
     {
-        public override string ResultString => string.Empty;
-
-        public override string MaxResultString => string.Empty;
+        // todo: wangs
     }
 }

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

@@ -17,7 +17,7 @@ namespace osu.Game.Rulesets.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.Rulesets.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

@@ -2,11 +2,23 @@
 // 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
+    public abstract class CatchBaseHit : HitObject, IHasXPosition, IHasCombo
     {
-        public float Position { get; set; }
+        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/DrawableCatchHitObject.cs

@@ -0,0 +1,60 @@
+// 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.Game.Rulesets.Judgements;
+using osu.Game.Rulesets.Objects.Drawables;
+
+namespace osu.Game.Rulesets.Catch.Objects.Drawable
+{
+    public abstract class DrawableCatchHitObject<TObject> : DrawableCatchHitObject
+        where TObject : CatchBaseHit
+    {
+        public new TObject HitObject;
+
+        protected DrawableCatchHitObject(TObject hitObject)
+            : base(hitObject)
+        {
+            HitObject = hitObject;
+        }
+    }
+
+    public abstract class DrawableCatchHitObject : DrawableScrollingHitObject<CatchBaseHit>
+    {
+        protected DrawableCatchHitObject(CatchBaseHit hitObject)
+            : base(hitObject)
+        {
+            RelativePositionAxes = Axes.Both;
+            X = hitObject.X;
+            Y = (float)HitObject.StartTime;
+        }
+
+        public Func<CatchBaseHit, bool> CheckPosition;
+
+        protected override void CheckForJudgements(bool userTriggered, double timeOffset)
+        {
+            if (timeOffset > 0)
+                AddJudgement(new Judgement { Result = CheckPosition?.Invoke(HitObject) ?? false ? HitResult.Perfect : HitResult.Miss });
+        }
+
+        private const float preempt = 1000;
+
+        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/Drawable/DrawableDroplet.cs

@@ -0,0 +1,34 @@
+// 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.Game.Rulesets.Catch.Objects.Drawable.Pieces;
+using OpenTK;
+
+namespace osu.Game.Rulesets.Catch.Objects.Drawable
+{
+    public class DrawableDroplet : DrawableCatchHitObject<Droplet>
+    {
+        public DrawableDroplet(Droplet h)
+            : base(h)
+        {
+            Origin = Anchor.Centre;
+
+            Size = new Vector2(Pulp.PULP_SIZE);
+
+            AccentColour = h.ComboColour;
+            Masking = false;
+        }
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            Child = new Pulp
+            {
+                AccentColour = AccentColour,
+                Scale = new Vector2(0.8f),
+            };
+        }
+    }
+}

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

@@ -3,37 +3,73 @@
 
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
-using osu.Framework.Graphics.Sprites;
-using osu.Framework.Graphics.Textures;
-using osu.Framework.Graphics.Transforms;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.MathUtils;
+using osu.Game.Rulesets.Catch.Objects.Drawable.Pieces;
 using OpenTK;
 
 namespace osu.Game.Rulesets.Catch.Objects.Drawable
 {
-    internal class DrawableFruit : Sprite
+    public class DrawableFruit : DrawableCatchHitObject<Fruit>
     {
-        private readonly CatchBaseHit h;
-
-        public DrawableFruit(CatchBaseHit h)
+        public DrawableFruit(Fruit h)
+            : base(h)
         {
-            this.h = h;
-
             Origin = Anchor.Centre;
-            Scale = new Vector2(0.1f);
-            RelativePositionAxes = Axes.Y;
-            Position = new Vector2(h.Position, -0.1f);
+
+            Size = new Vector2(Pulp.PULP_SIZE * 2.2f, Pulp.PULP_SIZE * 2.8f);
+            AccentColour = HitObject.ComboColour;
+            Masking = false;
+
+            Rotation = (float)(RNG.NextDouble() - 0.5f) * 40;
         }
 
         [BackgroundDependencyLoader]
-        private void load(TextureStore textures)
+        private void load()
         {
-            Texture = textures.Get(@"Menu/logo");
-
-            const 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);
+            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,
+                        },
+                    }
+                }
+            };
         }
     }
 }

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

@@ -0,0 +1,54 @@
+// 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.Containers;
+using OpenTK;
+using osu.Game.Rulesets.Objects.Drawables;
+
+namespace osu.Game.Rulesets.Catch.Objects.Drawable
+{
+    public class DrawableJuiceStream : DrawableCatchHitObject<JuiceStream>
+    {
+        private readonly Container dropletContainer;
+
+        public DrawableJuiceStream(JuiceStream s) : base(s)
+        {
+            RelativeSizeAxes = Axes.Both;
+            Height = (float)HitObject.Duration;
+            X = 0;
+
+            Child = dropletContainer = new Container
+            {
+                RelativeSizeAxes = Axes.Both,
+                RelativeChildOffset = new Vector2(0, (float)HitObject.StartTime),
+                RelativeChildSize = new Vector2(1, (float)HitObject.Duration)
+            };
+
+            foreach (CatchBaseHit tick in s.Ticks)
+            {
+                TinyDroplet tiny = tick as TinyDroplet;
+                if (tiny != null)
+                {
+                    AddNested(new DrawableDroplet(tiny) { Scale = new Vector2(0.5f) });
+                    continue;
+                }
+
+                Droplet droplet = tick as Droplet;
+                if (droplet != null)
+                    AddNested(new DrawableDroplet(droplet));
+
+                Fruit fruit = tick as Fruit;
+                if (fruit != null)
+                    AddNested(new DrawableFruit(fruit));
+            }
+        }
+
+        protected override void AddNested(DrawableHitObject<CatchBaseHit> h)
+        {
+            ((DrawableCatchHitObject)h).CheckPosition = o => CheckPosition?.Invoke(o) ?? false;
+            dropletContainer.Add(h);
+            base.AddNested(h);
+        }
+    }
+}

osu.Game.Rulesets.Catch/Objects/Drawable/Pieces/Pulp.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 osu.Framework.Extensions.Color4Extensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Graphics;
+using OpenTK;
+using OpenTK.Graphics;
+
+namespace osu.Game.Rulesets.Catch.Objects.Drawable.Pieces
+{
+    public class Pulp : Circle, IHasAccentColour
+    {
+        public const float PULP_SIZE = 20;
+
+        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),
+                };
+            }
+        }
+    }
+}

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

@@ -0,0 +1,169 @@
+// 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 System.Linq;
+using osu.Game.Audio;
+using osu.Game.Beatmaps;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Rulesets.Catch.UI;
+using osu.Game.Rulesets.Objects;
+using osu.Game.Rulesets.Objects.Types;
+using OpenTK;
+using osu.Framework.Lists;
+
+namespace osu.Game.Rulesets.Catch.Objects
+{
+    public class JuiceStream : CatchBaseHit, IHasCurve
+    {
+        /// <summary>
+        /// Positional distance that results in a duration of one second, before any speed adjustments.
+        /// </summary>
+        private const float base_scoring_distance = 100;
+
+        public readonly SliderCurve Curve = new SliderCurve();
+
+        public int RepeatCount { get; set; } = 1;
+
+        public double Velocity;
+        public double TickDistance;
+
+        public override void ApplyDefaults(ControlPointInfo controlPointInfo, BeatmapDifficulty difficulty)
+        {
+            base.ApplyDefaults(controlPointInfo, difficulty);
+
+            TimingControlPoint timingPoint = controlPointInfo.TimingPointAt(StartTime);
+            DifficultyControlPoint difficultyPoint = controlPointInfo.DifficultyPointAt(StartTime);
+
+            double scoringDistance = base_scoring_distance * difficulty.SliderMultiplier * difficultyPoint.SpeedMultiplier;
+
+            Velocity = scoringDistance / timingPoint.BeatLength;
+            TickDistance = scoringDistance / difficulty.SliderTickRate;
+        }
+
+        public IEnumerable<CatchBaseHit> Ticks
+        {
+            get
+            {
+                SortedList<CatchBaseHit> ticks = new SortedList<CatchBaseHit>((a, b) => a.StartTime.CompareTo(b.StartTime));
+
+                if (TickDistance == 0)
+                    return ticks;
+
+                var length = Curve.Distance;
+                var tickDistance = Math.Min(TickDistance, length);
+                var repeatDuration = length / Velocity;
+
+                var minDistanceFromEnd = Velocity * 0.01;
+
+                ticks.Add(new Fruit
+                {
+                    Samples = Samples,
+                    ComboColour = ComboColour,
+                    StartTime = StartTime,
+                    X = X
+                });
+
+                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 timeProgress = d / length;
+                        var distanceProgress = reversed ? 1 - timeProgress : timeProgress;
+
+                        var lastTickTime = repeatStartTime + timeProgress * repeatDuration;
+                        ticks.Add(new Droplet
+                        {
+                            StartTime = lastTickTime,
+                            ComboColour = ComboColour,
+                            X = Curve.PositionAt(distanceProgress).X / CatchPlayfield.BASE_WIDTH,
+                            Samples = new SampleInfoList(Samples.Select(s => new SampleInfo
+                            {
+                                Bank = s.Bank,
+                                Name = @"slidertick",
+                                Volume = s.Volume
+                            }))
+                        });
+                    }
+
+                    double tinyTickInterval = tickDistance / length * repeatDuration;
+                    while (tinyTickInterval > 100)
+                        tinyTickInterval /= 2;
+
+                    for (double t = 0; t < repeatDuration; t += tinyTickInterval)
+                    {
+                        double progress = reversed ? 1 - t / repeatDuration : t / repeatDuration;
+
+                        ticks.Add(new TinyDroplet
+                        {
+                            StartTime = repeatStartTime + t,
+                            ComboColour = ComboColour,
+                            X = Curve.PositionAt(progress).X / CatchPlayfield.BASE_WIDTH,
+                            Samples = new SampleInfoList(Samples.Select(s => new SampleInfo
+                            {
+                                Bank = s.Bank,
+                                Name = @"slidertick",
+                                Volume = s.Volume
+                            }))
+                        });
+                    }
+
+                    ticks.Add(new Fruit
+                    {
+                        Samples = Samples,
+                        ComboColour = ComboColour,
+                        StartTime = repeatStartTime + repeatDuration,
+                        X = Curve.PositionAt(reversed ? 0 : 1).X / CatchPlayfield.BASE_WIDTH
+                    });
+                }
+
+                return ticks;
+            }
+        }
+
+        public double EndTime => StartTime + RepeatCount * Curve.Distance / Velocity;
+
+        public float EndX => Curve.PositionAt(ProgressAt(1)).X / CatchPlayfield.BASE_WIDTH;
+
+        public double Duration => EndTime - StartTime;
+
+        public double Distance
+        {
+            get { return Curve.Distance; }
+            set { Curve.Distance = value; }
+        }
+
+        public List<Vector2> ControlPoints
+        {
+            get { return Curve.ControlPoints; }
+            set { Curve.ControlPoints = value; }
+        }
+
+        public List<SampleInfoList> RepeatSamples { get; set; } = new List<SampleInfoList>();
+
+        public CurveType CurveType
+        {
+            get { return Curve.CurveType; }
+            set { Curve.CurveType = value; }
+        }
+
+        public Vector2 PositionAt(double progress) => Curve.PositionAt(ProgressAt(progress));
+
+        public double ProgressAt(double progress)
+        {
+            double p = progress * RepeatCount % 1;
+            if (RepeatAt(progress) % 2 == 1)
+                p = 1 - p;
+            return p;
+        }
+
+        public int RepeatAt(double progress) => (int)(progress * RepeatCount);
+    }
+}

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

@@ -1,11 +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.Framework.Graphics;
-
-namespace osu.Game.Screens.Menu
+namespace osu.Game.Rulesets.Catch.Objects
 {
-    internal class MenuVisualisation : Drawable
+    public class TinyDroplet : Droplet
     {
     }
 }

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

@@ -8,11 +8,11 @@ using System.Runtime.InteropServices;
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyTitle("osu.Game.Rulesets.Catch")]
-[assembly: AssemblyDescription("")]
+[assembly: AssemblyDescription("catch the fruit. to the beat.")]
 [assembly: AssemblyConfiguration("")]
-[assembly: AssemblyCompany("")]
+[assembly: AssemblyCompany("ppy Pty Ltd")]
 [assembly: AssemblyProduct("osu.Game.Rulesets.Catch")]
-[assembly: AssemblyCopyright("Copyright ©  2016")]
+[assembly: AssemblyCopyright("ppy Pty Ltd 2007-2017")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
@@ -24,15 +24,5 @@ using System.Runtime.InteropServices;
 // The following GUID is for the ID of the typelib if this project is exposed to COM
 [assembly: Guid("58f6c80c-1253-4a0e-a465-b8c85ebeadf3")]
 
-// Version information for an assembly consists of the following four values:
-//
-//      Major Version
-//      Minor Version
-//      Build Number
-//      Revision
-//
-// 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")]
 [assembly: AssemblyFileVersion("1.0.0.0")]

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

@@ -1,26 +1,46 @@
 // 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, CatchJudgement>
+    internal class CatchScoreProcessor : ScoreProcessor<CatchBaseHit>
     {
-        public CatchScoreProcessor()
+        public CatchScoreProcessor(RulesetContainer<CatchBaseHit> rulesetContainer)
+            : base(rulesetContainer)
         {
         }
 
-        public CatchScoreProcessor(HitRenderer<CatchBaseHit, CatchJudgement> hitRenderer)
-            : base(hitRenderer)
+        protected override void SimulateAutoplay(Beatmap<CatchBaseHit> beatmap)
         {
-        }
+            foreach (var obj in beatmap.HitObjects)
+            {
+                var stream = obj as JuiceStream;
 
-        protected override void OnNewJudgement(CatchJudgement judgement)
-        {
+                if (stream != null)
+                {
+                    AddJudgement(new CatchJudgement { Result = HitResult.Perfect });
+                    AddJudgement(new CatchJudgement { Result = HitResult.Perfect });
+
+                    foreach (var unused in stream.Ticks)
+                        AddJudgement(new CatchJudgement { Result = HitResult.Perfect });
+
+                    continue;
+                }
+
+                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 +1,16 @@
+// 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;
+
+namespace osu.Game.Rulesets.Catch.Tests
+{
+    [TestFixture]
+    [Ignore("getting CI working")]
+    public class TestCaseCatchPlayer : Game.Tests.Visual.TestCasePlayer
+    {
+        public TestCaseCatchPlayer() : base(typeof(CatchRuleset))
+        {
+        }
+    }
+}

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

@@ -0,0 +1,28 @@
+// 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]
+    [Ignore("getting CI working")]
+    public class TestCaseCatchStacker : Game.Tests.Visual.TestCasePlayer
+    {
+        public TestCaseCatchStacker() : base(typeof(CatchRuleset))
+        {
+        }
+
+        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 +1,44 @@
+// 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]
+    [Ignore("getting CI working")]
+    internal class TestCaseCatcher : OsuTestCase
+    {
+        public override IReadOnlyList<Type> RequiredTypes => new[]
+        {
+            typeof(Catcher),
+        };
+
+        [BackgroundDependencyLoader]
+        private void load(RulesetStore rulesets)
+        {
+            Children = new Drawable[]
+            {
+                new CatchInputManager(rulesets.GetRuleset(2))
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    Child = new Catcher
+                    {
+                        RelativePositionAxes = Axes.Both,
+                        RelativeSizeAxes = Axes.Both,
+                        Anchor = Anchor.BottomLeft,
+                        Origin = Anchor.BottomLeft,
+                        Size = new Vector2(1, 0.2f),
+                    }
+                },
+            };
+        }
+    }
+}

osu.Game.Rulesets.Catch/UI/CatchHitRenderer.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.Game.Beatmaps;
-using osu.Game.Rulesets.Beatmaps;
-using osu.Game.Rulesets.Catch.Beatmaps;
-using osu.Game.Rulesets.Catch.Judgements;
-using osu.Game.Rulesets.Catch.Objects;
-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 CatchHitRenderer : HitRenderer<CatchBaseHit, CatchJudgement>
-    {
-        public CatchHitRenderer(WorkingBeatmap beatmap)
-            : base(beatmap)
-        {
-        }
-
-        public override ScoreProcessor CreateScoreProcessor() => new CatchScoreProcessor(this);
-
-        protected override BeatmapConverter<CatchBaseHit> CreateBeatmapConverter() => new CatchBeatmapConverter();
-
-        protected override Playfield<CatchBaseHit, CatchJudgement> CreatePlayfield() => new CatchPlayfield();
-
-        protected override DrawableHitObject<CatchBaseHit, CatchJudgement> GetVisualRepresentation(CatchBaseHit h) => null;
-    }
-}

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

@@ -1,24 +1,95 @@
 // 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.Sprites;
-using osu.Game.Rulesets.Catch.Objects;
 using osu.Game.Rulesets.UI;
 using OpenTK;
-using osu.Game.Rulesets.Catch.Judgements;
+using osu.Framework.Graphics.Containers;
+using osu.Game.Rulesets.Catch.Objects;
+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 : Playfield<CatchBaseHit, CatchJudgement>
+    public class CatchPlayfield : ScrollingPlayfield
     {
-        public CatchPlayfield()
-        {
-            Size = new Vector2(1, 0.9f);
-            Anchor = Anchor.BottomCentre;
-            Origin = Anchor.BottomCentre;
+        public static readonly float BASE_WIDTH = 512;
 
-            Add(new Box { RelativeSizeAxes = Axes.Both, Alpha = 0.5f });
+        protected override Container<Drawable> Content => content;
+        private readonly Container<Drawable> content;
+
+        private readonly Container catcherContainer;
+        private readonly Catcher catcher;
+
+        public CatchPlayfield()
+            : base(Axes.Y)
+        {
+            Container explodingFruitContainer;
+
+            Reversed.Value = true;
+
+            Anchor = Anchor.TopCentre;
+            Origin = Anchor.TopCentre;
+
+            InternalChildren = new Drawable[]
+            {
+                content = new Container<Drawable>
+                {
+                    RelativeSizeAxes = Axes.Both,
+                },
+                explodingFruitContainer = new Container
+                {
+                    RelativeSizeAxes = Axes.Both,
+                },
+                catcherContainer = new Container
+                {
+                    RelativeSizeAxes = Axes.X,
+                    Anchor = Anchor.BottomLeft,
+                    Origin = Anchor.TopLeft,
+                    Height = 180,
+                    Child = catcher = new Catcher
+                    {
+                        ExplodingFruitTarget = explodingFruitContainer,
+                        RelativePositionAxes = Axes.Both,
+                        Origin = Anchor.TopCentre,
+                        X = 0.5f,
+                    }
+                }
+            };
+        }
+
+        protected override void Update()
+        {
+            base.Update();
+            catcher.Size = new Vector2(catcherContainer.DrawSize.Y);
+        }
+
+        public bool CheckIfWeCanCatch(CatchBaseHit obj) => Math.Abs(catcher.Position.X - obj.X) < catcher.DrawSize.X / DrawSize.X / 2;
+
+        public override void Add(DrawableHitObject h)
+        {
+            h.Depth = (float)h.HitObject.StartTime;
+
+            base.Add(h);
+
+            var fruit = (DrawableCatchHitObject)h;
+            fruit.CheckPosition = CheckIfWeCanCatch;
+        }
+
+        public override void OnJudgement(DrawableHitObject judgedObject, Judgement judgement)
+        {
+            if (judgement.IsHit)
+            {
+                Vector2 screenPosition = judgedObject.ScreenSpaceDrawQuad.Centre;
+
+                // todo: don't do this
+                (judgedObject.Parent as Container<DrawableHitObject>)?.Remove(judgedObject);
+                (judgedObject.Parent as Container)?.Remove(judgedObject);
+
+                catcher.Add(judgedObject, screenPosition);
+            }
         }
     }
-}
+}

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

@@ -0,0 +1,46 @@
+// 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)
+        {
+            var fruit = h as Fruit;
+            if (fruit != null)
+                return new DrawableFruit(fruit);
+
+            var stream = h as JuiceStream;
+            if (stream != null)
+                return new DrawableJuiceStream(stream);
+
+            return null;
+        }
+    }
+}

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

@@ -0,0 +1,193 @@
+// 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 Catcher : Container, IKeyBindingHandler<CatchAction>
+    {
+        private Texture texture;
+
+        private Container<DrawableHitObject> caughtFruit;
+
+        public Container ExplodingFruitTarget;
+
+        [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;
+
+        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;
+
+            ((Container)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 Add(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 +1,19 @@
+<?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>
+      <dependentAssembly>
+        <assemblyIdentity name="System.ValueTuple" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral"/>
+        <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0"/>
+      </dependentAssembly>
+    </assemblyBinding>
+  </runtime>
+</configuration>

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

@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>osu.Game.Rulesets.Catch</RootNamespace>
     <AssemblyName>osu.Game.Rulesets.Catch</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
@@ -33,30 +33,41 @@
     <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="OpenTK, Version=2.0.0.0, Culture=neutral, PublicKeyToken=bad199fe84eb3df4, processorArchitecture=MSIL">
-      <HintPath>$(SolutionDir)\packages\ppy.OpenTK.2.0.50727.1341\lib\net45\OpenTK.dll</HintPath>
+    <Reference Include="nunit.framework, Version=3.8.1.0, Culture=neutral, PublicKeyToken=2638cd05610744eb, processorArchitecture=MSIL">
+      <HintPath>$(SolutionDir)\packages\NUnit.3.8.1\lib\net45\nunit.framework.dll</HintPath>
+      <Private>True</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>True</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="Objects\Drawable\DrawableCatchHitObject.cs" />
+    <Compile Include="Objects\Drawable\DrawableDroplet.cs" />
+    <Compile Include="Objects\Drawable\DrawableJuiceStream.cs" />
+    <Compile Include="Objects\Drawable\Pieces\Pulp.cs" />
+    <Compile Include="Objects\JuiceStream.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="Objects\TinyDroplet.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="UI\CatchHitRenderer.cs" />
+    <Compile Include="Tests\TestCaseCatcher.cs" />
+    <Compile Include="Tests\TestCaseCatchStacker.cs" />
+    <Compile Include="Tests\TestCaseCatchPlayer.cs" />
+    <Compile Include="UI\Catcher.cs" />
+    <Compile Include="UI\CatchRulesetContainer.cs" />
     <Compile Include="UI\CatchPlayfield.cs" />
     <Compile Include="CatchRuleset.cs" />
     <Compile Include="Mods\CatchMod.cs" />
@@ -65,6 +76,7 @@
     <None Include="..\osu.licenseheader">
       <Link>osu.licenseheader</Link>
     </None>
+    <None Include="app.config" />
     <None Include="OpenTK.dll.config" />
     <None Include="packages.config" />
   </ItemGroup>
@@ -72,14 +84,12 @@
     <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.Rulesets.Osu\osu.Game.Rulesets.Osu.csproj">
-      <Project>{C92A607B-1FDD-4954-9F92-03FF547D9080}</Project>
-      <Name>osu.Game.Rulesets.Osu</Name>
+      <Private>True</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>True</Private>
     </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />

osu.Game.Rulesets.Catch/packages.config

@@ -1,9 +1,5 @@
 <?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="2.0.50727.1341" targetFramework="net45" />
+  <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

@@ -1,23 +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.Beatmaps;
 using osu.Game.Rulesets.Mania.Objects;
-using System.Collections.Generic;
 using System;
-using osu.Game.Rulesets.Objects.Types;
-using osu.Game.Rulesets.Beatmaps;
+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
 {
-    internal class ManiaBeatmapConverter : BeatmapConverter<ManiaBaseHit>
+    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) };
 
-        protected override IEnumerable<ManiaBaseHit> ConvertHitObject(HitObject original, Beatmap beatmap)
+        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)
         {
-            yield return null;
+            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.BaseDifficulty;
+
+            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.BaseDifficulty.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.BaseDifficulty;
+                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;
+            }
+        }
+    }
+}

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

@@ -0,0 +1,65 @@
+// 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;
+
+namespace osu.Game.Rulesets.Mania.Beatmaps.Patterns.Legacy
+{
+    /// <summary>
+    /// The type of pattern to generate. Used for legacy patterns.
+    /// </summary>
+    [Flags]
+    internal enum PatternType
+    {
+        None = 0,
+        /// <summary>
+        /// Keep the same as last row.
+        /// </summary>
+        ForceStack = 1 << 0,
+        /// <summary>
+        /// Keep different from last row.
+        /// </summary>
+        ForceNotStack = 1 << 1,
+        /// <summary>
+        /// Keep as single note at its original position.
+        /// </summary>
+        KeepSingle = 1 << 2,
+        /// <summary>
+        /// Use a lower random value.
+        /// </summary>
+        LowProbability = 1 << 3,
+        /// <summary>
+        /// Reserved.
+        /// </summary>
+        Alternate = 1 << 4,
+        /// <summary>
+        /// Ignore the repeat count.
+        /// </summary>
+        ForceSigSlider = 1 << 5,
+        /// <summary>
+        /// Convert slider to circle.
+        /// </summary>
+        ForceNotSlider = 1 << 6,
+        /// <summary>
+        /// Notes gathered together.
+        /// </summary>
+        Gathered = 1 << 7,
+        Mirror = 1 << 8,
+        /// <summary>
+        /// Change 0 -> 6.
+        /// </summary>
+        Reverse = 1 << 9,
+        /// <summary>
+        /// 1 -> 5 -> 1 -> 5 like reverse.
+        /// </summary>
+        Cycle = 1 << 10,
+        /// <summary>
+        /// Next note will be at column + 1.
+        /// </summary>
+        Stair = 1 << 11,
+        /// <summary>
+        /// Next note will be at column - 1.
+        /// </summary>
+        ReverseStair = 1 << 12
+    }
+}

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

@@ -0,0 +1,57 @@
+// 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.Game.Rulesets.Mania.Objects;
+
+namespace osu.Game.Rulesets.Mania.Beatmaps.Patterns
+{
+    /// <summary>
+    /// Creates a pattern containing hit objects.
+    /// </summary>
+    internal class Pattern
+    {
+        private readonly List<ManiaHitObject> hitObjects = new List<ManiaHitObject>();
+
+        /// <summary>
+        /// All the hit objects contained in this pattern.
+        /// </summary>
+        public IEnumerable<ManiaHitObject> HitObjects => hitObjects;
+
+        /// <summary>
+        /// Check whether a column of this patterns contains a hit object.
+        /// </summary>
+        /// <param name="column">The column index.</param>
+        /// <returns>Whether the column with index <paramref name="column"/> contains a hit object.</returns>
+        public bool ColumnHasObject(int column) => hitObjects.Exists(h => h.Column == column);
+
+        /// <summary>
+        /// Amount of columns taken up by hit objects in this pattern.
+        /// </summary>
+        public int ColumnWithObjects => HitObjects.GroupBy(h => h.Column).Count();
+
+        /// <summary>
+        /// Adds a hit object to this pattern.
+        /// </summary>
+        /// <param name="hitObject">The hit object to add.</param>
+        public void Add(ManiaHitObject hitObject) => hitObjects.Add(hitObject);
+
+        /// <summary>
+        /// Copies hit object from another pattern to this one.
+        /// </summary>
+        /// <param name="other">The other pattern.</param>
+        public void Add(Pattern other) => hitObjects.AddRange(other.HitObjects);
+
+        /// <summary>
+        /// Clears this pattern, removing all hit objects.
+        /// </summary>
+        public void Clear() => hitObjects.Clear();
+
+        /// <summary>
+        /// Removes a hit object from this pattern.
+        /// </summary>
+        /// <param name="hitObject">The hit object to remove.</param>
+        public bool Remove(ManiaHitObject hitObject) => hitObjects.Remove(hitObject);
+    }
+}

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

@@ -0,0 +1,54 @@
+// 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.Game.Beatmaps;
+using osu.Game.Rulesets.Objects;
+
+namespace osu.Game.Rulesets.Mania.Beatmaps.Patterns
+{
+    /// <summary>
+    /// Generator to create a pattern <see cref="Pattern"/> from a hit object.
+    /// </summary>
+    internal abstract class PatternGenerator
+    {
+        /// <summary>
+        /// The number of columns available to create the pattern.
+        /// </summary>
+        protected readonly int AvailableColumns;
+
+        /// <summary>
+        /// The last pattern.
+        /// </summary>
+        protected readonly Pattern PreviousPattern;
+
+        /// <summary>
+        /// The hit object to create the pattern for.
+        /// </summary>
+        protected readonly HitObject HitObject;
+
+        /// <summary>
+        /// The beatmap which <see cref="HitObject"/> is a part of.
+        /// </summary>
+        protected readonly Beatmap Beatmap;
+
+        protected PatternGenerator(HitObject hitObject, Beatmap beatmap, int availableColumns, Pattern previousPattern)
+        {
+            if (hitObject == null) throw new ArgumentNullException(nameof(hitObject));
+            if (beatmap == null) throw new ArgumentNullException(nameof(beatmap));
+            if (availableColumns <= 0) throw new ArgumentOutOfRangeException(nameof(availableColumns));
+            if (previousPattern == null) throw new ArgumentNullException(nameof(previousPattern));
+
+            HitObject = hitObject;
+            Beatmap = beatmap;
+            AvailableColumns = availableColumns;
+            PreviousPattern = previousPattern;
+        }
+
+        /// <summary>
+        /// Generates the pattern for <see cref="HitObject"/>, filled with hit objects.
+        /// </summary>
+        /// <returns>The <see cref="Pattern"/> containing the hit objects.</returns>
+        public abstract Pattern Generate();
+    }
+}

osu.Game.Rulesets.Mania/Judgements/HitWindows.cs

@@ -0,0 +1,200 @@
+// 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.Objects.Drawables;
+
+namespace osu.Game.Rulesets.Mania.Judgements
+{
+    public class HitWindows
+    {
+        #region Constants
+
+        /// <summary>
+        /// PERFECT hit window at OD = 10.
+        /// </summary>
+        private const double perfect_min = 27.8;
+        /// <summary>
+        /// PERFECT hit window at OD = 5.
+        /// </summary>
+        private const double perfect_mid = 38.8;
+        /// <summary>
+        /// PERFECT hit window at OD = 0.
+        /// </summary>
+        private const double perfect_max = 44.8;
+
+        /// <summary>
+        /// GREAT hit window at OD = 10.
+        /// </summary>
+        private const double great_min = 68;
+        /// <summary>
+        /// GREAT hit window at OD = 5.
+        /// </summary>
+        private const double great_mid = 98;
+        /// <summary>
+        /// GREAT hit window at OD = 0.
+        /// </summary>
+        private const double great_max = 128;
+
+        /// <summary>
+        /// GOOD hit window at OD = 10.
+        /// </summary>
+        private const double good_min = 134;
+        /// <summary>
+        /// GOOD hit window at OD = 5.
+        /// </summary>
+        private const double good_mid = 164;
+        /// <summary>
+        /// GOOD hit window at OD = 0.
+        /// </summary>
+        private const double good_max = 194;
+
+        /// <summary>
+        /// OK hit window at OD = 10.
+        /// </summary>
+        private const double ok_min = 194;
+        /// <summary>
+        /// OK hit window at OD = 5.
+        /// </summary>
+        private const double ok_mid = 224;
+        /// <summary>
+        /// OK hit window at OD = 0.
+        /// </summary>
+        private const double ok_max = 254;
+
+        /// <summary>
+        /// BAD hit window at OD = 10.
+        /// </summary>
+        private const double bad_min = 242;
+        /// <summary>
+        /// BAD hit window at OD = 5.
+        /// </summary>
+        private const double bad_mid = 272;
+        /// <summary>
+        /// BAD hit window at OD = 0.
+        /// </summary>
+        private const double bad_max = 302;
+
+        /// <summary>
+        /// MISS hit window at OD = 10.
+        /// </summary>
+        private const double miss_min = 316;
+        /// <summary>
+        /// MISS hit window at OD = 5.
+        /// </summary>
+        private const double miss_mid = 346;
+        /// <summary>
+        /// MISS hit window at OD = 0.
+        /// </summary>
+        private const double miss_max = 376;
+
+        #endregion
+
+        /// <summary>
+        /// Hit window for a PERFECT hit.
+        /// </summary>
+        public double Perfect = perfect_mid;
+
+        /// <summary>
+        /// Hit window for a GREAT hit.
+        /// </summary>
+        public double Great = great_mid;
+
+        /// <summary>
+        /// Hit window for a GOOD hit.
+        /// </summary>
+        public double Good = good_mid;
+
+        /// <summary>
+        /// Hit window for an OK hit.
+        /// </summary>
+        public double Ok = ok_mid;
+
+        /// <summary>
+        /// Hit window for a BAD hit.
+        /// </summary>
+        public double Bad = bad_mid;
+
+        /// <summary>
+        /// Hit window for a MISS hit.
+        /// </summary>
+        public double Miss = miss_mid;
+
+        /// <summary>
+        /// Constructs default hit windows.
+        /// </summary>
+        public HitWindows()
+        {
+        }
+
+        /// <summary>
+        /// Constructs hit windows by fitting a parameter to a 2-part piecewise linear function for each hit window.
+        /// </summary>
+        /// <param name="difficulty">The parameter.</param>
+        public HitWindows(double difficulty)
+        {
+            Perfect = BeatmapDifficulty.DifficultyRange(difficulty, perfect_max, perfect_mid, perfect_min);
+            Great = BeatmapDifficulty.DifficultyRange(difficulty, great_max, great_mid, great_min);
+            Good = BeatmapDifficulty.DifficultyRange(difficulty, good_max, good_mid, good_min);
+            Ok = BeatmapDifficulty.DifficultyRange(difficulty, ok_max, ok_mid, ok_min);
+            Bad = BeatmapDifficulty.DifficultyRange(difficulty, bad_max, bad_mid, bad_min);
+            Miss = BeatmapDifficulty.DifficultyRange(difficulty, miss_max, miss_mid, miss_min);
+        }
+
+        /// <summary>
+        /// Retrieves the hit result for a time offset.
+        /// </summary>
+        /// <param name="hitOffset">The time offset.</param>
+        /// <returns>The hit result, or null if the time offset results in a miss.</returns>
+        public HitResult? ResultFor(double hitOffset)
+        {
+            if (hitOffset <= Perfect / 2)
+                return HitResult.Perfect;
+            if (hitOffset <= Great / 2)
+                return HitResult.Great;
+            if (hitOffset <= Good / 2)
+                return HitResult.Good;
+            if (hitOffset <= Ok / 2)
+                return HitResult.Ok;
+            if (hitOffset <= Bad / 2)
+                return HitResult.Meh;
+            return null;
+        }
+
+        /// <summary>
+        /// Constructs new hit windows which have been multiplied by a value.
+        /// </summary>
+        /// <param name="windows">The original hit windows.</param>
+        /// <param name="value">The value to multiply each hit window by.</param>
+        public static HitWindows operator *(HitWindows windows, double value)
+        {
+            return new HitWindows
+            {
+                Perfect = windows.Perfect * value,
+                Great = windows.Great * value,
+                Good = windows.Good * value,
+                Ok = windows.Ok * value,
+                Bad = windows.Bad * value,
+                Miss = windows.Miss * value
+            };
+        }
+
+        /// <summary>
+        /// Constructs new hit windows which have been divided by a value.
+        /// </summary>
+        /// <param name="windows">The original hit windows.</param>
+        /// <param name="value">The value to divide each hit window by.</param>
+        public static HitWindows operator /(HitWindows windows, double value)
+        {
+            return new HitWindows
+            {
+                Perfect = windows.Perfect / value,
+                Great = windows.Great / value,
+                Good = windows.Good / value,
+                Ok = windows.Ok / value,
+                Bad = windows.Bad / value,
+                Miss = windows.Miss / value
+            };
+        }
+    }
+}

osu.Game.Rulesets.Mania/Judgements/HoldNoteTailJudgement.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 osu.Game.Rulesets.Objects.Drawables;
+
+namespace osu.Game.Rulesets.Mania.Judgements
+{
+    public class HoldNoteTailJudgement : ManiaJudgement
+    {
+        /// <summary>
+        /// Whether the hold note has been released too early and shouldn't give full score for the release.
+        /// </summary>
+        public bool HasBroken;
+
+        protected override int NumericResultFor(HitResult result)
+        {
+            switch (result)
+            {
+                default:
+                    return base.NumericResultFor(result);
+                case HitResult.Great:
+                case HitResult.Perfect:
+                    return base.NumericResultFor(HasBroken ? HitResult.Good : result);
+            }
+        }
+    }
+}

osu.Game.Rulesets.Mania/Judgements/HoldNoteTickJudgement.cs

@@ -0,0 +1,14 @@
+// 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.Drawables;
+
+namespace osu.Game.Rulesets.Mania.Judgements
+{
+    public class HoldNoteTickJudgement : ManiaJudgement
+    {
+        public override bool AffectsCombo => false;
+
+        protected override int NumericResultFor(HitResult result) => 20;
+    }
+}

osu.Game.Rulesets.Mania/Judgements/ManiaJudgement.cs

@@ -2,13 +2,28 @@
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
 using osu.Game.Rulesets.Judgements;
+using osu.Game.Rulesets.Objects.Drawables;
 
 namespace osu.Game.Rulesets.Mania.Judgements
 {
     public class ManiaJudgement : Judgement
     {
-        public override string ResultString => string.Empty;
-
-        public override string MaxResultString => string.Empty;
+        protected override int NumericResultFor(HitResult result)
+        {
+            switch (result)
+            {
+                default:
+                    return 0;
+                case HitResult.Meh:
+                    return 50;
+                case HitResult.Ok:
+                    return 100;
+                case HitResult.Good:
+                    return 200;
+                case HitResult.Great:
+                case HitResult.Perfect:
+                    return 300;
+            }
+        }
     }
 }

osu.Game.Rulesets.Mania/ManiaDifficultyCalculator.cs

@@ -2,14 +2,14 @@
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
 using osu.Game.Beatmaps;
-using osu.Game.Rulesets.Beatmaps;
 using osu.Game.Rulesets.Mania.Beatmaps;
 using osu.Game.Rulesets.Mania.Objects;
 using System.Collections.Generic;
+using System;
 
 namespace osu.Game.Rulesets.Mania
 {
-    public class ManiaDifficultyCalculator : DifficultyCalculator<ManiaBaseHit>
+    public class ManiaDifficultyCalculator : DifficultyCalculator<ManiaHitObject>
     {
         public ManiaDifficultyCalculator(Beatmap beatmap)
             : base(beatmap)
@@ -21,6 +21,6 @@ namespace osu.Game.Rulesets.Mania
             return 0;
         }
 
-        protected override BeatmapConverter<ManiaBaseHit> CreateBeatmapConverter() => new ManiaBeatmapConverter();
+        protected override BeatmapConverter<ManiaHitObject> CreateBeatmapConverter() => new ManiaBeatmapConverter(true, (int)Math.Max(1, Math.Round(Beatmap.BeatmapInfo.BaseDifficulty.CircleSize)));
     }
-}
+}

osu.Game.Rulesets.Mania/ManiaInputManager.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 System.ComponentModel;
+using osu.Framework.Input.Bindings;
+using osu.Game.Rulesets.UI;
+
+namespace osu.Game.Rulesets.Mania
+{
+    public class ManiaInputManager : RulesetInputManager<ManiaAction>
+    {
+        public ManiaInputManager(RulesetInfo ruleset, int variant)
+            : base(ruleset, variant, SimultaneousBindingMode.Unique)
+        {
+        }
+    }
+
+    public enum ManiaAction
+    {
+        [Description("Special")]
+        Special,
+        [Description("Key 1")]
+        Key1 = 10,
+        [Description("Key 2")]
+        Key2,
+        [Description("Key 3")]
+        Key3,
+        [Description("Key 4")]
+        Key4,
+        [Description("Key 5")]
+        Key5,
+        [Description("Key 6")]
+        Key6,
+        [Description("Key 7")]
+        Key7,
+        [Description("Key 8")]
+        Key8,
+        [Description("Key 9")]
+        Key9
+    }
+}

osu.Game.Rulesets.Mania/ManiaRuleset.cs

@@ -2,21 +2,20 @@
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
 using osu.Game.Beatmaps;
-using osu.Game.Graphics;
 using osu.Game.Rulesets.Mania.Mods;
 using osu.Game.Rulesets.Mania.UI;
 using osu.Game.Rulesets.Mods;
 using osu.Game.Rulesets.UI;
-using osu.Game.Screens.Play;
 using System.Collections.Generic;
-using osu.Game.Rulesets.Mania.Scoring;
-using osu.Game.Rulesets.Scoring;
+using osu.Framework.Graphics;
+using osu.Framework.Input.Bindings;
+using osu.Game.Graphics;
 
 namespace osu.Game.Rulesets.Mania
 {
     public class ManiaRuleset : Ruleset
     {
-        public override HitRenderer CreateHitRendererWith(WorkingBeatmap beatmap) => new ManiaHitRenderer(beatmap);
+        public override RulesetContainer CreateRulesetContainerWith(WorkingBeatmap beatmap, bool isForCurrentRuleset) => new ManiaRulesetContainer(this, beatmap, isForCurrentRuleset);
 
         public override IEnumerable<Mod> GetModsFor(ModType type)
         {
@@ -27,7 +26,14 @@ namespace osu.Game.Rulesets.Mania
                     {
                         new ManiaModEasy(),
                         new ManiaModNoFail(),
-                        new ManiaModHalfTime(),
+                        new MultiMod
+                        {
+                            Mods = new Mod[]
+                            {
+                                new ManiaModHalfTime(),
+                                new ManiaModDaycore(),
+                            },
+                        },
                     };
 
                 case ModType.DifficultyIncrease:
@@ -85,10 +91,11 @@ namespace osu.Game.Rulesets.Mania
                         {
                             Mods = new Mod[]
                             {
-                                new ModAutoplay(),
+                                new ManiaModAutoplay(),
                                 new ModCinema(),
                             },
                         },
+                        new ManiaModGravity()
                     };
 
                 default:
@@ -98,14 +105,53 @@ namespace osu.Game.Rulesets.Mania
 
         public override string Description => "osu!mania";
 
-        public override FontAwesome Icon => FontAwesome.fa_osu_mania_o;
-
-        public override IEnumerable<KeyCounter> CreateGameplayKeys() => new KeyCounter[] { /* Todo: Should be keymod specific */ };
+        public override Drawable CreateIcon() => new SpriteIcon { Icon = FontAwesome.fa_osu_mania_o };
 
         public override DifficultyCalculator CreateDifficultyCalculator(Beatmap beatmap) => new ManiaDifficultyCalculator(beatmap);
 
-        public override ScoreProcessor CreateScoreProcessor() => new ManiaScoreProcessor();
-
         public override int LegacyID => 3;
+
+        public ManiaRuleset(RulesetInfo rulesetInfo)
+            : base(rulesetInfo)
+        {
+        }
+
+        public override IEnumerable<int> AvailableVariants => new[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
+
+        public override IEnumerable<KeyBinding> GetDefaultKeyBindings(int variant = 0)
+        {
+            var leftKeys = new[]
+            {
+                InputKey.A,
+                InputKey.S,
+                InputKey.D,
+                InputKey.F
+            };
+
+            var rightKeys = new[]
+            {
+                InputKey.J,
+                InputKey.K,
+                InputKey.L,
+                InputKey.Semicolon
+            };
+
+            ManiaAction currentKey = ManiaAction.Key1;
+
+            var bindings = new List<KeyBinding>();
+
+            for (int i = leftKeys.Length - variant / 2; i < leftKeys.Length; i++)
+                bindings.Add(new KeyBinding(leftKeys[i], currentKey++));
+
+            for (int i = 0; i < variant / 2; i++)
+                bindings.Add(new KeyBinding(rightKeys[i], currentKey++));
+
+            if (variant % 2 == 1)
+                bindings.Add(new KeyBinding(InputKey.Space, ManiaAction.Special));
+
+            return bindings;
+        }
+
+        public override string GetVariantName(int variant) => $"{variant}K";
     }
 }

osu.Game.Rulesets.Mania/MathUtils/FastRandom.cs

@@ -0,0 +1,91 @@
+// 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;
+
+namespace osu.Game.Rulesets.Mania.MathUtils
+{
+    /// <summary>
+    /// A PRNG specified in http://heliosphan.org/fastrandom.html.
+    /// </summary>
+    internal class FastRandom
+    {
+        private const double uint_to_real = 1.0 / (uint.MaxValue + 1.0);
+        private const uint int_mask = 0x7FFFFFFF;
+        private const uint y = 842502087;
+        private const uint z = 3579807591;
+        private const uint w = 273326509;
+        private uint _x, _y = y, _z = z, _w = w;
+
+        public FastRandom(int seed)
+        {
+            _x = (uint)seed;
+        }
+
+        public FastRandom()
+            : this(Environment.TickCount)
+        {
+        }
+
+        /// <summary>
+        /// Generates a random unsigned integer within the range [<see cref="uint.MinValue"/>, <see cref="uint.MaxValue"/>).
+        /// </summary>
+        /// <returns>The random value.</returns>
+        public uint NextUInt()
+        {
+            uint t = _x ^ _x << 11;
+            _x = _y;
+            _y = _z;
+            _z = _w;
+            return _w = _w ^ _w >> 19 ^ t ^ t >> 8;
+        }
+
+        /// <summary>
+        /// Generates a random integer value within the range [0, <see cref="int.MaxValue"/>).
+        /// </summary>
+        /// <returns>The random value.</returns>
+        public int Next() => (int)(int_mask & NextUInt());
+
+        /// <summary>
+        /// Generates a random integer value within the range [0, <paramref name="upperBound"/>).
+        /// </summary>
+        /// <param name="upperBound">The upper bound.</param>
+        /// <returns>The random value.</returns>
+        public int Next(int upperBound) => (int)(NextDouble() * upperBound);
+
+        /// <summary>
+        /// Generates a random integer value within the range [<paramref name="lowerBound"/>, <paramref name="upperBound"/>).
+        /// </summary>
+        /// <param name="lowerBound">The lower bound of the range.</param>
+        /// <param name="upperBound">The upper bound of the range.</param>
+        /// <returns>The random value.</returns>
+        public int Next(int lowerBound, int upperBound) => (int)(lowerBound + NextDouble() * (upperBound - lowerBound));
+
+        /// <summary>
+        /// Generates a random double value within the range [0, 1).
+        /// </summary>
+        /// <returns>The random value.</returns>
+        public double NextDouble() => uint_to_real * NextUInt();
+
+        private uint bitBuffer;
+        private int bitIndex = 32;
+
+        /// <summary>
+        /// Generates a reandom boolean value. Cached such that a random value is only generated once in every 32 calls.
+        /// </summary>
+        /// <returns>The random value.</returns>
+        public bool NextBool()
+        {
+            if (bitIndex == 32)
+            {
+                bitBuffer = NextUInt();
+                bitIndex = 1;
+
+                return (bitBuffer & 1) == 1;
+            }
+
+            bitIndex++;
+            return ((bitBuffer >>= 1) & 1) == 1;
+        }
+    }
+}

osu.Game.Rulesets.Mania/Mods/IGenerateSpeedAdjustments.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 System.Collections.Generic;
+using osu.Game.Rulesets.Mania.UI;
+using osu.Game.Rulesets.Timing;
+
+namespace osu.Game.Rulesets.Mania.Mods
+{
+    /// <summary>
+    /// A type of mod which generates speed adjustments that scroll the hit objects and bar lines.
+    /// </summary>
+    internal interface IGenerateSpeedAdjustments
+    {
+        /// <summary>
+        /// Applies this mod to a hit renderer.
+        /// </summary>
+        /// <param name="rulesetContainer">The hit renderer to apply to.</param>
+        /// <param name="hitObjectTimingChanges">The per-column list of speed adjustments for hit objects.</param>
+        /// <param name="barlineTimingChanges">The list of speed adjustments for bar lines.</param>
+        void ApplyToRulesetContainer(ManiaRulesetContainer rulesetContainer, ref List<SpeedAdjustmentContainer>[] hitObjectTimingChanges, ref List<SpeedAdjustmentContainer> barlineTimingChanges);
+    }
+}

osu.Game.Rulesets.Mania/Mods/ManiaMod.cs

@@ -4,6 +4,16 @@
 using osu.Game.Graphics;
 using osu.Game.Rulesets.Mods;
 using System;
+using System.Linq;
+using osu.Framework.Extensions.IEnumerableExtensions;
+using osu.Framework.MathUtils;
+using osu.Game.Beatmaps;
+using osu.Game.Rulesets.Mania.Objects;
+using osu.Game.Rulesets.Mania.Replays;
+using osu.Game.Rulesets.Mania.UI;
+using osu.Game.Rulesets.Scoring;
+using osu.Game.Users;
+using osu.Game.Rulesets.UI;
 
 namespace osu.Game.Rulesets.Mania.Mods
 {
@@ -34,6 +44,11 @@ namespace osu.Game.Rulesets.Mania.Mods
 
     }
 
+    public class ManiaModDaycore : ModDaycore
+    {
+        public override double ScoreMultiplier => 0.3;
+    }
+
     public class ManiaModDoubleTime : ModDoubleTime
     {
         public override double ScoreMultiplier => 1.0;
@@ -63,21 +78,35 @@ namespace osu.Game.Rulesets.Mania.Mods
     public class ManiaModFadeIn : Mod
     {
         public override string Name => "FadeIn";
+        public override string ShortenedName => "FI";
         public override FontAwesome Icon => FontAwesome.fa_osu_mod_hidden;
+        public override ModType Type => ModType.DifficultyIncrease;
         public override double ScoreMultiplier => 1;
         public override bool Ranked => true;
         public override Type[] IncompatibleMods => new[] { typeof(ModFlashlight) };
     }
 
-    public class ManiaModRandom : Mod
+    public class ManiaModRandom : Mod, IApplicableMod<ManiaHitObject>
     {
         public override string Name => "Random";
+        public override string ShortenedName => "RD";
+        public override FontAwesome Icon => FontAwesome.fa_osu_dice;
         public override string Description => @"Shuffle around the notes!";
         public override double ScoreMultiplier => 1;
+
+        public void ApplyToRulesetContainer(RulesetContainer<ManiaHitObject> rulesetContainer)
+        {
+            int availableColumns = ((ManiaRulesetContainer)rulesetContainer).AvailableColumns;
+
+            var shuffledColumns = Enumerable.Range(0, availableColumns).OrderBy(item => RNG.Next()).ToList();
+
+            rulesetContainer.Objects.OfType<ManiaHitObject>().ForEach(h => h.Column = shuffledColumns[h.Column]);
+        }
     }
 
     public abstract class ManiaKeyMod : Mod
     {
+        public override string ShortenedName => Name;
         public abstract int KeyCount { get; }
         public override double ScoreMultiplier => 1; // TODO: Implement the mania key mod score multiplier
         public override bool Ranked => true;
@@ -140,8 +169,29 @@ namespace osu.Game.Rulesets.Mania.Mods
     public class ManiaModKeyCoop : Mod
     {
         public override string Name => "KeyCoop";
+        public override string ShortenedName => "2P";
         public override string Description => @"Double the key amount, double the fun!";
         public override double ScoreMultiplier => 1;
         public override bool Ranked => true;
     }
+
+    public class ManiaModAutoplay : ModAutoplay<ManiaHitObject>
+    {
+        private int availableColumns;
+
+        public override void ApplyToRulesetContainer(RulesetContainer<ManiaHitObject> rulesetContainer)
+        {
+            // Todo: This shouldn't be done, we should be getting a ManiaBeatmap which should store AvailableColumns
+            // But this is dependent on a _lot_ of refactoring
+            var maniaRulesetContainer = (ManiaRulesetContainer)rulesetContainer;
+            availableColumns = maniaRulesetContainer.AvailableColumns;
+
+            base.ApplyToRulesetContainer(rulesetContainer);
+        }
+        protected override Score CreateReplayScore(Beatmap<ManiaHitObject> beatmap) => new Score
+        {
+            User = new User { Username = "osu!topus!" },
+            Replay = new ManiaAutoGenerator(beatmap, availableColumns).Generate(),
+        };
+    }
 }

osu.Game.Rulesets.Mania/Mods/ManiaModGravity.cs

@@ -0,0 +1,48 @@
+// 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.Game.Rulesets.Mania.Objects;
+using osu.Game.Rulesets.Mania.UI;
+using osu.Game.Rulesets.Mods;
+using osu.Game.Graphics;
+using osu.Game.Rulesets.Mania.Timing;
+using osu.Game.Rulesets.Timing;
+using osu.Game.Rulesets.Mania.Objects.Drawables;
+
+namespace osu.Game.Rulesets.Mania.Mods
+{
+    public class ManiaModGravity : Mod, IGenerateSpeedAdjustments
+    {
+        public override string Name => "Gravity";
+        public override string ShortenedName => "GR";
+
+        public override double ScoreMultiplier => 0;
+
+        public override FontAwesome Icon => FontAwesome.fa_sort_desc;
+
+        public void ApplyToRulesetContainer(ManiaRulesetContainer rulesetContainer, ref List<SpeedAdjustmentContainer>[] hitObjectTimingChanges, ref List<SpeedAdjustmentContainer> barlineTimingChanges)
+        {
+            // We have to generate one speed adjustment per hit object for gravity
+            foreach (ManiaHitObject obj in rulesetContainer.Objects.OfType<ManiaHitObject>())
+            {
+                MultiplierControlPoint controlPoint = rulesetContainer.CreateControlPointAt(obj.StartTime);
+                // Beat length has too large of an effect for gravity, so we'll force it to a constant value for now
+                controlPoint.TimingPoint.BeatLength = 1000;
+
+                hitObjectTimingChanges[obj.Column].Add(new ManiaSpeedAdjustmentContainer(controlPoint, ScrollingAlgorithm.Gravity));
+            }
+
+            // Like with hit objects, we need to generate one speed adjustment per bar line
+            foreach (DrawableBarLine barLine in rulesetContainer.BarLines)
+            {
+                var controlPoint = rulesetContainer.CreateControlPointAt(barLine.HitObject.StartTime);
+                // Beat length has too large of an effect for gravity, so we'll force it to a constant value for now
+                controlPoint.TimingPoint.BeatLength = 1000;
+
+                barlineTimingChanges.Add(new ManiaSpeedAdjustmentContainer(controlPoint, ScrollingAlgorithm.Gravity));
+            }
+        }
+    }
+}

osu.Game.Rulesets.Mania/Objects/BarLine.cs

@@ -0,0 +1,21 @@
+// 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.ControlPoints;
+
+namespace osu.Game.Rulesets.Mania.Objects
+{
+    public class BarLine : ManiaHitObject
+    {
+        /// <summary>
+        /// The control point which this bar line is part of.
+        /// </summary>
+        public TimingControlPoint ControlPoint;
+
+        /// <summary>
+        /// The index of the beat which this bar line represents within the control point.
+        /// This is a "major" bar line if <see cref="BeatIndex"/> % <see cref="TimingControlPoint.TimeSignature"/> == 0.
+        /// </summary>
+        public int BeatIndex;
+    }
+}

osu.Game.Rulesets.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.Rulesets.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");
-
-            const 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.Rulesets.Mania/Objects/Drawables/DrawableBarLine.cs

@@ -0,0 +1,74 @@
+// 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;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Rulesets.Objects.Drawables;
+
+namespace osu.Game.Rulesets.Mania.Objects.Drawables
+{
+    /// <summary>
+    /// Visualises a <see cref="BarLine"/>. Although this derives DrawableManiaHitObject,
+    /// this does not handle input/sound like a normal hit object.
+    /// </summary>
+    public class DrawableBarLine : DrawableManiaHitObject<BarLine>
+    {
+        /// <summary>
+        /// Height of major bar line triangles.
+        /// </summary>
+        private const float triangle_height = 12;
+
+        /// <summary>
+        /// Offset of the major bar line triangles from the sides of the bar line.
+        /// </summary>
+        private const float triangle_offset = 9;
+
+        public DrawableBarLine(BarLine barLine)
+            : base(barLine)
+        {
+            RelativeSizeAxes = Axes.X;
+            Height = 1;
+
+            Add(new Box
+            {
+                Name = "Bar line",
+                Anchor = Anchor.BottomCentre,
+                Origin = Anchor.BottomCentre,
+                RelativeSizeAxes = Axes.Both,
+            });
+
+            bool isMajor = barLine.BeatIndex % (int)barLine.ControlPoint.TimeSignature == 0;
+
+            if (isMajor)
+            {
+                Add(new EquilateralTriangle
+                {
+                    Name = "Left triangle",
+                    Anchor = Anchor.BottomLeft,
+                    Origin = Anchor.TopCentre,
+                    Size = new Vector2(triangle_height),
+                    X = -triangle_offset,
+                    Rotation = 90
+                });
+
+                Add(new EquilateralTriangle
+                {
+                    Name = "Right triangle",
+                    Anchor = Anchor.BottomRight,
+                    Origin = Anchor.TopCentre,
+                    Size = new Vector2(triangle_height),
+                    X = triangle_offset,
+                    Rotation = -90
+                });
+            }
+
+            if (!isMajor && barLine.BeatIndex % 2 == 1)
+                Alpha = 0.2f;
+        }
+
+        protected override void UpdateState(ArmedState state)
+        {
+        }
+    }
+}

osu.Game.Rulesets.Mania/Objects/Drawables/DrawableHoldNote.cs

@@ -0,0 +1,272 @@
+// 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.Rulesets.Objects.Drawables;
+using osu.Framework.Graphics;
+using osu.Game.Rulesets.Mania.Objects.Drawables.Pieces;
+using OpenTK.Graphics;
+using OpenTK;
+using osu.Framework.Graphics.Containers;
+using osu.Game.Rulesets.Mania.Judgements;
+using osu.Framework.Extensions.IEnumerableExtensions;
+using osu.Framework.Input.Bindings;
+
+namespace osu.Game.Rulesets.Mania.Objects.Drawables
+{
+    /// <summary>
+    /// Visualises a <see cref="HoldNote"/> hit object.
+    /// </summary>
+    public class DrawableHoldNote : DrawableManiaHitObject<HoldNote>, IKeyBindingHandler<ManiaAction>
+    {
+        private readonly DrawableNote head;
+        private readonly DrawableNote tail;
+
+        private readonly GlowPiece glowPiece;
+        private readonly BodyPiece bodyPiece;
+        private readonly Container<DrawableHoldNoteTick> tickContainer;
+        private readonly Container fullHeightContainer;
+
+        /// <summary>
+        /// Time at which the user started holding this hold note. Null if the user is not holding this hold note.
+        /// </summary>
+        private double? holdStartTime;
+
+        /// <summary>
+        /// Whether the hold note has been released too early and shouldn't give full score for the release.
+        /// </summary>
+        private bool hasBroken;
+
+        public DrawableHoldNote(HoldNote hitObject, ManiaAction action)
+            : base(hitObject, action)
+        {
+            RelativeSizeAxes = Axes.Both;
+            Height = (float)HitObject.Duration;
+
+            AddRange(new Drawable[]
+            {
+                // The hit object itself cannot be used for various elements because the tail overshoots it
+                // So a specialized container that is updated to contain the tail height is used
+                fullHeightContainer = new Container
+                {
+                    RelativeSizeAxes = Axes.X,
+                    Child = glowPiece = new GlowPiece()
+                },
+                bodyPiece = new BodyPiece
+                {
+                    Anchor = Anchor.TopCentre,
+                    Origin = Anchor.TopCentre,
+                    RelativeSizeAxes = Axes.X,
+                },
+                tickContainer = new Container<DrawableHoldNoteTick>
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    RelativeChildOffset = new Vector2(0, (float)HitObject.StartTime),
+                    RelativeChildSize = new Vector2(1, (float)HitObject.Duration)
+                },
+                head = new DrawableHeadNote(this, action)
+                {
+                    Anchor = Anchor.TopCentre,
+                    Origin = Anchor.TopCentre
+                },
+                tail = new DrawableTailNote(this, action)
+                {
+                    Anchor = Anchor.BottomCentre,
+                    Origin = Anchor.TopCentre
+                }
+            });
+
+            foreach (var tick in HitObject.Ticks)
+            {
+                var drawableTick = new DrawableHoldNoteTick(tick)
+                {
+                    HoldStartTime = () => holdStartTime
+                };
+
+                tickContainer.Add(drawableTick);
+                AddNested(drawableTick);
+            }
+
+            AddNested(head);
+            AddNested(tail);
+        }
+
+        public override Color4 AccentColour
+        {
+            get { return base.AccentColour; }
+            set
+            {
+                if (base.AccentColour == value)
+                    return;
+                base.AccentColour = value;
+
+                tickContainer.Children.ForEach(t => t.AccentColour = value);
+
+                glowPiece.AccentColour = value;
+                bodyPiece.AccentColour = value;
+                head.AccentColour = value;
+                tail.AccentColour = value;
+            }
+        }
+
+        protected override void UpdateState(ArmedState state)
+        {
+        }
+
+        protected override void Update()
+        {
+            base.Update();
+
+            // Make the body piece not lie under the head note
+            bodyPiece.Y = head.Height;
+            bodyPiece.Height = DrawHeight - head.Height;
+
+            // Make the fullHeightContainer "contain" the height of the tail note, keeping in mind
+            // that the tail note overshoots the height of this hit object
+            fullHeightContainer.Height = DrawHeight + tail.Height;
+        }
+
+        public bool OnPressed(ManiaAction action)
+        {
+            // Make sure the action happened within the body of the hold note
+            if (Time.Current < HitObject.StartTime || Time.Current > HitObject.EndTime)
+                return false;
+
+            if (action != Action)
+                return false;
+
+            // The user has pressed during the body of the hold note, after the head note and its hit windows have passed
+            // and within the limited range of the above if-statement. This state will be managed by the head note if the
+            // user has pressed during the hit windows of the head note.
+            holdStartTime = Time.Current;
+
+            return true;
+        }
+
+        public bool OnReleased(ManiaAction action)
+        {
+            // Make sure that the user started holding the key during the hold note
+            if (!holdStartTime.HasValue)
+                return false;
+
+            if (action != Action)
+                return false;
+
+            holdStartTime = null;
+
+            // If the key has been released too early, the user should not receive full score for the release
+            if (!tail.AllJudged)
+                hasBroken = true;
+
+            return true;
+        }
+
+        /// <summary>
+        /// The head note of a hold.
+        /// </summary>
+        private class DrawableHeadNote : DrawableNote
+        {
+            private readonly DrawableHoldNote holdNote;
+
+            public DrawableHeadNote(DrawableHoldNote holdNote, ManiaAction action)
+                : base(holdNote.HitObject.Head, action)
+            {
+                this.holdNote = holdNote;
+
+                RelativePositionAxes = Axes.None;
+                Y = 0;
+
+                // Life time managed by the parent DrawableHoldNote
+                LifetimeStart = double.MinValue;
+                LifetimeEnd = double.MaxValue;
+
+                GlowPiece.Alpha = 0;
+            }
+
+            public override bool OnPressed(ManiaAction action)
+            {
+                if (!base.OnPressed(action))
+                    return false;
+
+                // If the key has been released too early, the user should not receive full score for the release
+                if (Judgements.Any(j => j.Result == HitResult.Miss))
+                    holdNote.hasBroken = true;
+
+                // The head note also handles early hits before the body, but we want accurate early hits to count as the body being held
+                // The body doesn't handle these early early hits, so we have to explicitly set the holding state here
+                holdNote.holdStartTime = Time.Current;
+
+                return true;
+            }
+        }
+
+        /// <summary>
+        /// The tail note of a hold.
+        /// </summary>
+        private class DrawableTailNote : DrawableNote
+        {
+            private readonly DrawableHoldNote holdNote;
+
+            public DrawableTailNote(DrawableHoldNote holdNote, ManiaAction action)
+                : base(holdNote.HitObject.Tail, action)
+            {
+                this.holdNote = holdNote;
+
+                RelativePositionAxes = Axes.None;
+                Y = 0;
+
+                // Life time managed by the parent DrawableHoldNote
+                LifetimeStart = double.MinValue;
+                LifetimeEnd = double.MaxValue;
+
+                GlowPiece.Alpha = 0;
+            }
+
+            protected override void CheckForJudgements(bool userTriggered, double timeOffset)
+            {
+                if (!userTriggered)
+                {
+                    if (timeOffset > HitObject.HitWindows.Bad / 2)
+                    {
+                        AddJudgement(new HoldNoteTailJudgement
+                        {
+                            Result = HitResult.Miss,
+                            HasBroken = holdNote.hasBroken
+                        });
+                    }
+
+                    return;
+                }
+
+                double offset = Math.Abs(timeOffset);
+
+                if (offset > HitObject.HitWindows.Miss / 2)
+                    return;
+
+                AddJudgement(new HoldNoteTailJudgement
+                {
+                    Result = HitObject.HitWindows.ResultFor(offset) ?? HitResult.Miss,
+                    HasBroken = holdNote.hasBroken
+                });
+            }
+
+            public override bool OnPressed(ManiaAction action) => false; // Tail doesn't handle key down
+
+            public override bool OnReleased(ManiaAction action)
+            {
+                // Make sure that the user started holding the key during the hold note
+                if (!holdNote.holdStartTime.HasValue)
+                    return false;
+
+                if (action != Action)
+                    return false;
+
+                UpdateJudgement(true);
+
+                // Handled by the hold note, which will set holding = false
+                return false;
+            }
+        }
+    }
+}

osu.Game.Rulesets.Mania/Objects/Drawables/DrawableHoldNoteTick.cs

@@ -0,0 +1,116 @@
+// 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 OpenTK;
+using OpenTK.Graphics;
+using osu.Framework.Extensions.Color4Extensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Game.Rulesets.Mania.Judgements;
+using osu.Game.Rulesets.Objects.Drawables;
+using osu.Framework.Graphics.Shapes;
+
+namespace osu.Game.Rulesets.Mania.Objects.Drawables
+{
+    /// <summary>
+    /// Visualises a <see cref="HoldNoteTick"/> hit object.
+    /// </summary>
+    public class DrawableHoldNoteTick : DrawableManiaHitObject<HoldNoteTick>
+    {
+        /// <summary>
+        /// References the time at which the user started holding the hold note.
+        /// </summary>
+        public Func<double?> HoldStartTime;
+
+        private readonly Container glowContainer;
+
+        public DrawableHoldNoteTick(HoldNoteTick hitObject)
+            : base(hitObject)
+        {
+            Anchor = Anchor.TopCentre;
+            Origin = Anchor.TopCentre;
+
+            Y = (float)HitObject.StartTime;
+
+            RelativeSizeAxes = Axes.X;
+            Size = new Vector2(1);
+
+            // Life time managed by the parent DrawableHoldNote
+            LifetimeStart = double.MinValue;
+            LifetimeEnd = double.MaxValue;
+
+            Children = new[]
+            {
+                glowContainer = new CircularContainer
+                {
+                    Anchor = Anchor.TopCentre,
+                    Origin = Anchor.TopCentre,
+                    RelativeSizeAxes = Axes.Both,
+                    Masking = true,
+                    Children = new[]
+                    {
+                        new Box
+                        {
+                            RelativeSizeAxes = Axes.Both,
+                            Alpha = 0,
+                            AlwaysPresent = true
+                        }
+                    }
+                }
+            };
+        }
+
+        public override Color4 AccentColour
+        {
+            get { return base.AccentColour; }
+            set
+            {
+                base.AccentColour = value;
+
+                glowContainer.EdgeEffect = new EdgeEffectParameters
+                {
+                    Type = EdgeEffectType.Glow,
+                    Radius = 2f,
+                    Roundness = 15f,
+                    Colour = value.Opacity(0.3f)
+                };
+            }
+        }
+
+        protected override void CheckForJudgements(bool userTriggered, double timeOffset)
+        {
+            if (!userTriggered)
+                return;
+
+            if (Time.Current < HitObject.StartTime)
+                return;
+
+            if (HoldStartTime?.Invoke() > HitObject.StartTime)
+                return;
+
+            AddJudgement(new HoldNoteTickJudgement { Result = HitResult.Perfect });
+        }
+
+        protected override void UpdateState(ArmedState state)
+        {
+            switch (State)
+            {
+                case ArmedState.Hit:
+                    AccentColour = Color4.Green;
+                    break;
+            }
+        }
+
+        protected override void Update()
+        {
+            if (AllJudged)
+                return;
+
+            if (HoldStartTime?.Invoke() == null)
+                return;
+
+            UpdateJudgement(true);
+        }
+    }
+}

osu.Game.Rulesets.Mania/Objects/Drawables/DrawableManiaHitObject.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.Graphics;
+using OpenTK.Graphics;
+using osu.Game.Rulesets.Objects.Drawables;
+
+namespace osu.Game.Rulesets.Mania.Objects.Drawables
+{
+    public abstract class DrawableManiaHitObject<TObject> : DrawableScrollingHitObject<ManiaHitObject>
+        where TObject : ManiaHitObject
+    {
+        /// <summary>
+        /// The key that will trigger input for this hit object.
+        /// </summary>
+        protected ManiaAction Action { get; }
+
+        public new TObject HitObject;
+
+        protected DrawableManiaHitObject(TObject hitObject, ManiaAction? action = null)
+            : base(hitObject)
+        {
+            RelativePositionAxes = Axes.Y;
+            HitObject = hitObject;
+
+            if (action != null)
+                Action = action.Value;
+        }
+
+        public override Color4 AccentColour
+        {
+            get { return base.AccentColour; }
+            set
+            {
+                if (base.AccentColour == value)
+                    return;
+                base.AccentColour = value;
+            }
+        }
+    }
+}

osu.Game.Rulesets.Mania/Objects/Drawables/DrawableNote.cs

@@ -0,0 +1,92 @@
+// 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 OpenTK.Graphics;
+using osu.Framework.Graphics;
+using osu.Framework.Input.Bindings;
+using osu.Game.Rulesets.Mania.Judgements;
+using osu.Game.Rulesets.Mania.Objects.Drawables.Pieces;
+using osu.Game.Rulesets.Objects.Drawables;
+
+namespace osu.Game.Rulesets.Mania.Objects.Drawables
+{
+    /// <summary>
+    /// Visualises a <see cref="Note"/> hit object.
+    /// </summary>
+    public class DrawableNote : DrawableManiaHitObject<Note>, IKeyBindingHandler<ManiaAction>
+    {
+        protected readonly GlowPiece GlowPiece;
+
+        private readonly LaneGlowPiece laneGlowPiece;
+        private readonly NotePiece headPiece;
+
+        public DrawableNote(Note hitObject, ManiaAction action)
+            : base(hitObject, action)
+        {
+            RelativeSizeAxes = Axes.X;
+            AutoSizeAxes = Axes.Y;
+
+            Children = new Drawable[]
+            {
+                laneGlowPiece = new LaneGlowPiece
+                {
+                    Anchor = Anchor.Centre,
+                    Origin = Anchor.Centre
+                },
+                GlowPiece = new GlowPiece(),
+                headPiece = new NotePiece
+                {
+                    Anchor = Anchor.TopCentre,
+                    Origin = Anchor.TopCentre
+                }
+            };
+        }
+
+        public override Color4 AccentColour
+        {
+            get { return base.AccentColour; }
+            set
+            {
+                if (base.AccentColour == value)
+                    return;
+                base.AccentColour = value;
+
+                laneGlowPiece.AccentColour = value;
+                GlowPiece.AccentColour = value;
+                headPiece.AccentColour = value;
+            }
+        }
+
+        protected override void CheckForJudgements(bool userTriggered, double timeOffset)
+        {
+            if (!userTriggered)
+            {
+                if (timeOffset > HitObject.HitWindows.Bad / 2)
+                    AddJudgement(new ManiaJudgement { Result = HitResult.Miss });
+                return;
+            }
+
+            double offset = Math.Abs(timeOffset);
+
+            if (offset > HitObject.HitWindows.Miss / 2)
+                return;
+
+            AddJudgement(new ManiaJudgement { Result = HitObject.HitWindows.ResultFor(offset) ?? HitResult.Miss });
+        }
+
+        protected override void UpdateState(ArmedState state)
+        {
+        }
+
+        public virtual bool OnPressed(ManiaAction action)
+        {
+            if (action != Action)
+                return false;
+
+            return UpdateJudgement(true);
+        }
+
+        public virtual bool OnReleased(ManiaAction action) => false;
+    }
+}

osu.Game.Rulesets.Mania/Objects/Drawables/Pieces/BodyPiece.cs

@@ -0,0 +1,132 @@
+// 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.Caching;
+using OpenTK.Graphics;
+using osu.Framework.Extensions.Color4Extensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Graphics;
+
+namespace osu.Game.Rulesets.Mania.Objects.Drawables.Pieces
+{
+    /// <summary>
+    /// Represents length-wise portion of a hold note.
+    /// </summary>
+    internal class BodyPiece : Container, IHasAccentColour
+    {
+        private readonly Container subtractionLayer;
+
+        private readonly Drawable background;
+        private readonly BufferedContainer foreground;
+        private readonly BufferedContainer subtractionContainer;
+
+        public BodyPiece()
+        {
+            Blending = BlendingMode.Additive;
+
+            Children = new[]
+            {
+                background = new Box { RelativeSizeAxes = Axes.Both },
+                foreground = new BufferedContainer
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    CacheDrawnFrameBuffer = true,
+                    Children = new Drawable[]
+                    {
+                        new Box { RelativeSizeAxes = Axes.Both },
+                        subtractionContainer = new BufferedContainer
+                        {
+                            RelativeSizeAxes = Axes.Both,
+                            // This is needed because we're blending with another object
+                            BackgroundColour = Color4.White.Opacity(0),
+                            CacheDrawnFrameBuffer = true,
+                            // The 'hole' is achieved by subtracting the result of this container with the parent
+                            Blending = new BlendingParameters { AlphaEquation = BlendingEquation.ReverseSubtract },
+                            Child = subtractionLayer = new CircularContainer
+                            {
+                                Anchor = Anchor.Centre,
+                                Origin = Anchor.Centre,
+                                // Height computed in Update
+                                Width = 1,
+                                Masking = true,
+                                Child = new Box
+                                {
+                                    RelativeSizeAxes = Axes.Both,
+                                    Alpha = 0,
+                                    AlwaysPresent = true
+                                }
+                            }
+                        }
+                    }
+                }
+            };
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            updateAccentColour();
+        }
+
+        private Color4 accentColour;
+        public Color4 AccentColour
+        {
+            get { return accentColour; }
+            set
+            {
+                if (accentColour == value)
+                    return;
+                accentColour = value;
+
+                updateAccentColour();
+            }
+        }
+
+        private Cached subtractionCache = new Cached();
+
+        public override bool Invalidate(Invalidation invalidation = Invalidation.All, Drawable source = null, bool shallPropagate = true)
+        {
+            if ((invalidation & Invalidation.DrawSize) > 0)
+                subtractionCache.Invalidate();
+
+            return base.Invalidate(invalidation, source, shallPropagate);
+        }
+
+        protected override void Update()
+        {
+            base.Update();
+
+            if (!subtractionCache.IsValid)
+            {
+                subtractionLayer.Width = 5;
+                subtractionLayer.Height = Math.Max(0, DrawHeight - DrawWidth);
+                subtractionLayer.EdgeEffect = new EdgeEffectParameters
+                {
+                    Colour = Color4.White,
+                    Type = EdgeEffectType.Glow,
+                    Radius = DrawWidth
+                };
+
+                foreground.ForceRedraw();
+                subtractionContainer.ForceRedraw();
+
+                subtractionCache.Validate();
+            }
+        }
+
+        private void updateAccentColour()
+        {
+            if (!IsLoaded)
+                return;
+
+            foreground.Colour = AccentColour.Opacity(0.4f);
+            background.Colour = AccentColour.Opacity(0.2f);
+
+            subtractionCache.Invalidate();
+        }
+    }
+}

osu.Game.Rulesets.Mania/Objects/Drawables/Pieces/GlowPiece.cs

@@ -0,0 +1,65 @@
+// 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.Color4Extensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Graphics;
+using OpenTK.Graphics;
+
+namespace osu.Game.Rulesets.Mania.Objects.Drawables.Pieces
+{
+    public class GlowPiece : CompositeDrawable, IHasAccentColour
+    {
+        private const float glow_alpha = 0.7f;
+        private const float glow_radius = 5;
+
+        public GlowPiece()
+        {
+            RelativeSizeAxes = Axes.Both;
+            Masking = true;
+
+            InternalChild = new Box
+            {
+                RelativeSizeAxes = Axes.Both,
+                Alpha = 0,
+                AlwaysPresent = true
+            };
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+            updateGlow();
+        }
+
+        private Color4 accentColour;
+        public Color4 AccentColour
+        {
+            get { return accentColour; }
+            set
+            {
+                if (accentColour == value)
+                    return;
+                accentColour = value;
+
+                updateGlow();
+            }
+        }
+
+        private void updateGlow()
+        {
+            if (!IsLoaded)
+                return;
+
+            EdgeEffect = new EdgeEffectParameters
+            {
+                Type = EdgeEffectType.Glow,
+                Colour = AccentColour.Opacity(glow_alpha),
+                Radius = glow_radius,
+                Hollow = true
+            };
+        }
+    }
+}

osu.Game.Rulesets.Mania/Objects/Drawables/Pieces/LaneGlowPiece.cs

@@ -0,0 +1,85 @@
+// 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.Graphics;
+using osu.Framework.Extensions.Color4Extensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Colour;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Graphics;
+
+namespace osu.Game.Rulesets.Mania.Objects.Drawables.Pieces
+{
+    public class LaneGlowPiece : CompositeDrawable, IHasAccentColour
+    {
+        private const float total_height = 100;
+        private const float glow_height = 50;
+        private const float glow_alpha = 0.4f;
+        private const float edge_alpha = 0.3f;
+
+        public LaneGlowPiece()
+        {
+            BypassAutoSizeAxes = Axes.Both;
+            RelativeSizeAxes = Axes.X;
+            Height = total_height;
+
+            InternalChildren = new[]
+            {
+                new Container
+                {
+                    Name = "Left edge",
+                    RelativeSizeAxes = Axes.Y,
+                    Width = 1,
+                    Children = createGradient(edge_alpha)
+                },
+                new Container
+                {
+                    Name = "Right edge",
+                    Anchor = Anchor.TopRight,
+                    Origin = Anchor.TopRight,
+                    RelativeSizeAxes = Axes.Y,
+                    Width = 1,
+                    Children = createGradient(edge_alpha)
+                },
+                new Container
+                {
+                    Name = "Glow",
+                    Anchor = Anchor.Centre,
+                    Origin = Anchor.Centre,
+                    RelativeSizeAxes = Axes.X,
+                    Height = glow_height,
+                    Children = createGradient(glow_alpha)
+                }
+            };
+        }
+
+        private Drawable[] createGradient(float alpha) => new Drawable[]
+        {
+            new Box
+            {
+                Name = "Top",
+                RelativeSizeAxes = Axes.Both,
+                Height = 0.5f,
+                Blending = BlendingMode.Additive,
+                Colour = ColourInfo.GradientVertical(Color4.Transparent, Color4.White.Opacity(alpha))
+            },
+            new Box
+            {
+                Name = "Bottom",
+                Anchor = Anchor.BottomLeft,
+                Origin = Anchor.BottomLeft,
+                RelativeSizeAxes = Axes.Both,
+                Height = 0.5f,
+                Blending = BlendingMode.Additive,
+                Colour = ColourInfo.GradientVertical(Color4.White.Opacity(alpha), Color4.Transparent)
+            }
+        };
+
+        public Color4 AccentColour
+        {
+            get { return Colour; }
+            set { Colour = value; }
+        }
+    }
+}

osu.Game.Rulesets.Mania/Objects/Drawables/Pieces/NotePiece.cs

@@ -0,0 +1,59 @@
+// 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.Graphics;
+using osu.Framework.Extensions.Color4Extensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Graphics;
+
+namespace osu.Game.Rulesets.Mania.Objects.Drawables.Pieces
+{
+    /// <summary>
+    /// Represents the static hit markers of notes.
+    /// </summary>
+    internal class NotePiece : Container, IHasAccentColour
+    {
+        private const float head_height = 10;
+        private const float head_colour_height = 6;
+
+        private readonly Box colouredBox;
+
+        public NotePiece()
+        {
+            RelativeSizeAxes = Axes.X;
+            Height = head_height;
+
+            Children = new[]
+            {
+                new Box
+                {
+                    RelativeSizeAxes = Axes.Both
+                },
+                colouredBox = new Box
+                {
+                    Anchor = Anchor.TopCentre,
+                    Origin = Anchor.TopCentre,
+                    RelativeSizeAxes = Axes.X,
+                    Height = head_colour_height,
+                    Alpha = 0.2f
+                }
+            };
+        }
+
+        private Color4 accentColour;
+        public Color4 AccentColour
+        {
+            get { return accentColour; }
+            set
+            {
+                if (accentColour == value)
+                    return;
+                accentColour = value;
+
+                colouredBox.Colour = AccentColour.Lighten(0.9f);
+            }
+        }
+    }
+}

osu.Game.Rulesets.Mania/Objects/HoldNote.cs

@@ -1,9 +1,121 @@
-// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// 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 osu.Game.Beatmaps;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Rulesets.Objects.Types;
+
 namespace osu.Game.Rulesets.Mania.Objects
 {
-    public class HoldNote : Note
+    /// <summary>
+    /// Represents a hit object which requires pressing, holding, and releasing a key.
+    /// </summary>
+    public class HoldNote : ManiaHitObject, IHasEndTime
     {
+        public double EndTime => StartTime + Duration;
+
+        private double duration;
+        public double Duration
+        {
+            get { return duration; }
+            set
+            {
+                duration = value;
+                Tail.StartTime = EndTime;
+            }
+        }
+
+        public override double StartTime
+        {
+            get { return base.StartTime; }
+            set
+            {
+                base.StartTime = value;
+                Head.StartTime = value;
+                Tail.StartTime = EndTime;
+            }
+        }
+
+        public override int Column
+        {
+            get { return base.Column; }
+            set
+            {
+                base.Column = value;
+                Head.Column = value;
+                Tail.Column = value;
+            }
+        }
+
+        /// <summary>
+        /// The head note of the hold.
+        /// </summary>
+        public readonly Note Head = new Note();
+
+        /// <summary>
+        /// The tail note of the hold.
+        /// </summary>
+        public readonly Note Tail = new TailNote();
+
+        /// <summary>
+        /// The time between ticks of this hold.
+        /// </summary>
+        private double tickSpacing = 50;
+
+        public override void ApplyDefaults(ControlPointInfo controlPointInfo, BeatmapDifficulty difficulty)
+        {
+            base.ApplyDefaults(controlPointInfo, difficulty);
+
+            TimingControlPoint timingPoint = controlPointInfo.TimingPointAt(StartTime);
+            tickSpacing = timingPoint.BeatLength / difficulty.SliderTickRate;
+
+            Head.ApplyDefaults(controlPointInfo, difficulty);
+            Tail.ApplyDefaults(controlPointInfo, difficulty);
+        }
+
+        /// <summary>
+        /// The scoring scoring ticks of the hold note.
+        /// </summary>
+        public IEnumerable<HoldNoteTick> Ticks => ticks ?? (ticks = createTicks());
+        private List<HoldNoteTick> ticks;
+
+        private List<HoldNoteTick> createTicks()
+        {
+            var ret = new List<HoldNoteTick>();
+
+            if (tickSpacing == 0)
+                return ret;
+
+            for (double t = StartTime + tickSpacing; t <= EndTime - tickSpacing; t += tickSpacing)
+            {
+                ret.Add(new HoldNoteTick
+                {
+                    StartTime = t,
+                    Column = Column
+                });
+            }
+
+            return ret;
+        }
+
+        /// <summary>
+        /// The tail of the hold note.
+        /// </summary>
+        private class TailNote : Note
+        {
+            /// <summary>
+            /// Lenience of release hit windows. This is to make cases where the hold note release
+            /// is timed alongside presses of other hit objects less awkward.
+            /// </summary>
+            private const double release_window_lenience = 1.5;
+
+            public override void ApplyDefaults(ControlPointInfo controlPointInfo, BeatmapDifficulty difficulty)
+            {
+                base.ApplyDefaults(controlPointInfo, difficulty);
+
+                HitWindows *= release_window_lenience;
+            }
+        }
     }
 }

osu.Game.Rulesets.Mania/Objects/HoldNoteTick.cs

@@ -0,0 +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
+
+namespace osu.Game.Rulesets.Mania.Objects
+{
+    /// <summary>
+    /// A scoring tick of a hold note.
+    /// </summary>
+    public class HoldNoteTick : ManiaHitObject
+    {
+    }
+}

osu.Game.Rulesets.Mania/Objects/ManiaHitObject.cs

@@ -1,12 +1,13 @@
 // 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.Types;
 using osu.Game.Rulesets.Objects;
 
 namespace osu.Game.Rulesets.Mania.Objects
 {
-    public abstract class ManiaBaseHit : HitObject
+    public abstract class ManiaHitObject : HitObject, IHasColumn
     {
-        public int Column;
+        public virtual int Column { get; set; }
     }
 }

osu.Game.Rulesets.Mania/Objects/Note.cs

@@ -1,9 +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 osu.Game.Beatmaps;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Rulesets.Mania.Judgements;
+
 namespace osu.Game.Rulesets.Mania.Objects
 {
-    public class Note : ManiaBaseHit
+    /// <summary>
+    /// Represents a hit object which has a single hit press.
+    /// </summary>
+    public class Note : ManiaHitObject
     {
+        /// <summary>
+        /// The key-press hit window for this note.
+        /// </summary>
+        public HitWindows HitWindows { get; protected set; } = new HitWindows();
+
+        public override void ApplyDefaults(ControlPointInfo controlPointInfo, BeatmapDifficulty difficulty)
+        {
+            base.ApplyDefaults(controlPointInfo, difficulty);
+
+            HitWindows = new HitWindows(difficulty.OverallDifficulty);
+        }
     }
 }