Change state manager methods to return the new state

Co-authored-by: Paul <ritter.paul1@gmail.com>

.appveyor.yml

@@ -1,52 +0,0 @@
-environment:
-  sonarqubekey:
-    secure: h3llq6OeVa94hJ71UOEQSQDq75vFt+doso7iFry0gvt/fFcyeonY9wY+ETOIVITK
-  global:
-    PYTHONUNBUFFERED: True
-    HEADLESS: 1  # For the unit tests.
-
-version: 0.1.0.{build}
-pull_requests:
-  do_not_increment_build_number: true
-
-image: Visual Studio 2019
-install:
-- ps: >
-    if (-Not $env:APPVEYOR_PULL_REQUEST_NUMBER -And $env:APPVEYOR_REPO_BRANCH -Eq "master")
-    {
-      cinst msbuild-sonarqube-runner;
-    }
-
-before_build:
-- cmd: py -3.5 -m pip install --user requests
-- cmd: git submodule update --init --recursive
-- ps: >
-    if (-Not $env:APPVEYOR_PULL_REQUEST_NUMBER -And $env:APPVEYOR_REPO_BRANCH -Eq "master")
-    {
-      SonarScanner.MSBuild.exe begin /k:"ss14" /d:"sonar.host.url=https://sonarcloud.io" /d:"sonar.login=$env:sonarqubekey" /o:"space-wizards" /d:sonar.cs.nunit.reportsPaths="$(Get-Location)\nunitTestResult.xml";
-    }
-
-platform: x64
-configuration: Debug
-
-cache:
-- packages -> **\*.csproj
-- Dependencies
-
-build:
-  project: RobustToolbox.sln
-  parallel: false
-  verbosity: minimal
-
-build_script:
-- ps: dotnet build RobustToolbox.sln /p:AppVeyor=yes
-
-test_script:
-- ps: dotnet test Robust.UnitTesting/Robust.UnitTesting.csproj
-
-after_test:
-- ps: >
-    if (-Not $env:APPVEYOR_PULL_REQUEST_NUMBER -And $env:APPVEYOR_REPO_BRANCH -Eq "master")
-    {
-      SonarScanner.MSBuild.exe end /d:"sonar.login=$env:sonarqubekey";
-    }

.github/CODEOWNERS

@@ -1,14 +1,20 @@
-# Lines starting with '#' are comments.
-# Each line is a file pattern followed by one or more owners.
+# Last match in file takes precedence.
 
-# These owners will be the default owners for everything in the repo.
-# * @defunkt
+# Ping for all PRs
 * @Acruid @PJB3005 @Silvertorch5
 
-# Order is important. The last matching pattern has the most precedence.
-# So if a pull request only touches javascript files, only these owners
-# will be requested to review.
-# *.js    @octocat @github/js
+/Robust.*/Audio/Midi/ @Zumorica
 
-# You can also use email addresses if you prefer.
-# docs/*  docs@example.com
+/Robust.Client.NameGenerator @PaulRitter
+/Robust.Client.Injectors @PaulRitter
+/Robust.Generators @PaulRitter
+/Robust.Analyzers @PaulRitter
+/Robust.*/GameStates @PaulRitter
+/Robust.Shared/Analyzers @PaulRitter
+/Robust.*/Serialization @PaulRitter @DrSmugleaf
+/Robust.*/Prototypes @PaulRitter
+/Robust.Shared/GameObjects/ComponentDependencies @PaulRitter
+/Robust.*/Containers @PaulRitter
+
+# Be they Fluent translations or Freemarker templates, I know them both!
+*.ftl @RemieRichards

.github/workflows/benchmarks.yml

@@ -0,0 +1,35 @@
+name: Benchmarks
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 5 * * *'
+  push:
+    tags:
+      - 'v*'
+
+concurrency: benchmarks
+
+env:
+  ROBUST_BENCHMARKS_ENABLE_SQL: 1
+  ROBUST_BENCHMARKS_SQL_ADDRESS: ${{ secrets.BENCHMARKS_WRITE_ADDRESS }}
+  ROBUST_BENCHMARKS_SQL_PORT: ${{ secrets.BENCHMARKS_WRITE_PORT }}
+  ROBUST_BENCHMARKS_SQL_USER: ${{ secrets.BENCHMARKS_WRITE_USER }}
+  ROBUST_BENCHMARKS_SQL_PASSWORD: ${{ secrets.BENCHMARKS_WRITE_PASSWORD }}
+  ROBUST_BENCHMARKS_SQL_DATABASE: benchmarks
+
+jobs:
+  benchmark:
+    name: Run Benchmarks
+    runs-on: ubuntu-latest
+    steps:
+    - name: Run script on centcomm
+      uses: appleboy/ssh-action@master
+      with:
+        host: centcomm.spacestation14.io
+        username: robust-benchmark-runner
+        key: ${{ secrets.CENTCOMM_ROBUST_BENCHMARK_RUNNER_KEY }}
+        command_timeout: 100000m 
+        script: |
+          wget https://raw.githubusercontent.com/space-wizards/RobustToolbox/${{ github.sha }}/Tools/run_benchmarks.py
+          python3 run_benchmarks.py "${{ secrets.BENCHMARKS_WRITE_ADDRESS }}" "${{ secrets.BENCHMARKS_WRITE_PORT }}" "${{ secrets.BENCHMARKS_WRITE_USER }}" "${{ secrets.BENCHMARKS_WRITE_PASSWORD }}" "${{ github.sha }}"
+          rm run_benchmarks.py

.github/workflows/build-docfx.yml

@@ -0,0 +1,34 @@
+name: Build & Publish DocFX
+
+on:
+  schedule:
+    - cron: "0 0 * * 0"
+jobs:
+  docfx:
+   runs-on: ubuntu-latest
+   steps: 
+    - uses: actions/checkout@v2
+      with:
+        submodules: true
+
+    - name: Setup .NET Core
+      uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: 6.0.x
+        
+    - name: Install dependencies
+      run: dotnet restore
+      
+    - name: Build Project
+      run: dotnet build --no-restore /p:WarningsAsErrors=nullable
+
+    - name: Build DocFX
+      uses: nikeee/docfx-action@v1.0.0      
+      with:
+        args: Robust.Docfx/docfx.json
+    
+    - name: Publish Docfx Documentation on GitHub Pages
+      uses: maxheld83/ghpages@master
+      env:
+        BUILD_DIR: Robust.Docfx/_robust-site 
+        GH_PAT: ${{ secrets.GH_PAT }} 

.github/workflows/build-test.yml

@@ -10,7 +10,7 @@ jobs:
   build:
     strategy:
       matrix:
-        os: [ubuntu-latest, windows-latest]
+        os: [ubuntu-latest, windows-latest, macos-latest]
 
     runs-on: ${{ matrix.os }}
 
@@ -22,10 +22,12 @@ jobs:
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
       with:
-        dotnet-version: 5.0.100
+        dotnet-version: 6.0.x
     - name: Install dependencies
       run: dotnet restore
     - name: Build
       run: dotnet build --no-restore /p:WarningsAsErrors=nullable
     - name: Test Engine
-      run: dotnet test --no-build Robust.UnitTesting/Robust.UnitTesting.csproj -v n
+      run: dotnet test --no-build Robust.UnitTesting/Robust.UnitTesting.csproj -- NUnit.ConsoleOut=0
+ 
+

.github/workflows/codeql-analysis.yml

@@ -11,14 +11,14 @@
 #
 name: "CodeQL"
 
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    # The branches below must be a subset of the branches above
-    branches: [ master ]
-  schedule:
-    - cron: '30 18 * * 6'
+#on:
+#  push:
+#    branches: [ master ]
+#  pull_request:
+#    # The branches below must be a subset of the branches above
+#    branches: [ master ]
+#  schedule:
+#    - cron: '30 18 * * 6'
 
 jobs:
   analyze:
@@ -38,12 +38,12 @@ jobs:
       uses: actions/checkout@v2
       with:
         submodules: true
-        
+
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
       with:
-        dotnet-version: 5.0.100
-        
+        dotnet-version: 6.0.100
+
     - name: Build
       run: dotnet build
 

.github/workflows/publish-client.yml

@@ -23,7 +23,7 @@ jobs:
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
       with:
-        dotnet-version: 5.0.100
+        dotnet-version: 6.0.100
 
     - name: Package client
       run: Tools/package_client_build.py -p windows mac linux

.github/workflows/test-content.yml

@@ -21,7 +21,7 @@ jobs:
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
       with:
-        dotnet-version: 5.0.100
+        dotnet-version: 6.0.100
     - name: Disable submodule autoupdate
       run: touch BuildChecker/DISABLE_SUBMODULE_AUTOUPDATE
 
@@ -38,4 +38,4 @@ jobs:
     - name: Content.Tests
       run: dotnet test --no-build Content.Tests/Content.Tests.csproj -v n
     - name: Content.IntegrationTests
-      run: dotnet test --no-build Content.IntegrationTests/Content.IntegrationTests.csproj -v n
+      run: COMPlus_gcServer=1 dotnet test --no-build Content.IntegrationTests/Content.IntegrationTests.csproj -v n

.gitignore

@@ -41,18 +41,6 @@ _ReSharper*/
 
 # Resources
 *.resources
-/Resources/textures/Animations/*.*
-/Resources/ResourcePack.zip
-/Resources/textures/*_Animations.png
-/Resources/textures/*_Decals.png
-/Resources/textures/*_Effects.png
-/Resources/textures/*_Items.png
-/Resources/textures/*_Objects.png
-/Resources/textures/*_Tiles.png
-/Resources/textures/*_UserInterface.png
-/Resources/textures/*.TAI
-/Resources/SpriteRenderer/Ogre.log
-/Resources/Spriterenderer/output
 /Media
 /setenv.bat
 
@@ -78,16 +66,6 @@ project.lock.json
 # Created by NUnit.
 TestResult.xml
 
-NetSerializerDebug.dll
-
-# We're not gonna ship Mac extlibs with the repo due to size. (11 MB)
-Third-Party/extlibs/Mac/
-# Or the automatically-fetched Windows natives, for that matter.
-Third-Party/extlibs/Windows/
-
-# Actually I'll make this folder because SS14.Shared.Bsdiff isn't third-party is it?
-Dependencies/
-
 # Python stuff
 __pycache__
 .mypy_cache
@@ -98,3 +76,5 @@ MSBuild/Robust.Custom.targets
 
 
 release/
+Robust.Docfx/*-site
+Robust.Docfx/api

.gitmodules

@@ -10,6 +10,6 @@
 [submodule "Robust.LoaderApi"]
 	path = Robust.LoaderApi
 	url = https://github.com/space-wizards/Robust.LoaderApi.git
-[submodule "ManagedHttpListener"]
-	path = ManagedHttpListener
-	url = https://github.com/space-wizards/ManagedHttpListener.git
+[submodule "cefglue"]
+	path = cefglue
+	url = https://github.com/space-wizards/cefglue.git

Avalonia.Base/Avalonia.Base.csproj

@@ -0,0 +1,7 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net5.0</TargetFramework>
+    </PropertyGroup>
+
+</Project>

Avalonia.Base/README.md

@@ -0,0 +1,2 @@
+See `Robust.Client/UserInterface/XAML/RiderNotes.md` for why this project exists.
+We are not actually using Avalonia (yet).

Lidgren.Network/Lidgren.Network.csproj

@@ -3,10 +3,10 @@
   <PropertyGroup>
     <TargetFramework>netcoreapp3.1</TargetFramework>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
-    <DefineConstants Condition="'$(TargetFramework)' == 'netstandard2.1' or '$(TargetFramework)' == 'netcoreapp3.1'">$(DefineConstants);HAS_FULL_SPAN</DefineConstants>
     <EnableDefaultCompileItems>false</EnableDefaultCompileItems>
     <DefaultItemExcludes>Lidgren.Network/**/*</DefaultItemExcludes>
     <DefineConstants>$(DefineConstants);USE_RELEASE_STATISTICS</DefineConstants>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
 
   <ItemGroup>

MSBuild/Robust.Analyzers.targets

@@ -0,0 +1,5 @@
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="12.0">
+  <ItemGroup>
+    <ProjectReference Include="$(MSBuildThisFileDirectory)\..\Robust.Analyzers\Robust.Analyzers.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false"/>
+  </ItemGroup>
+</Project>

MSBuild/Robust.Engine.Version.props

@@ -0,0 +1,4 @@
+<Project>
+    <!-- This file automatically reset by Tools/version.py -->
+    <PropertyGroup><Version>0.40.3.0</Version></PropertyGroup>
+</Project>

MSBuild/Robust.Engine.props

@@ -1,8 +1,10 @@
 <Project>
     <!-- Engine-specific properties. Content should not use this file. -->
     <PropertyGroup>
-        <TargetFramework>net5.0</TargetFramework>
-        <LangVersion>9</LangVersion>
+        <TargetFramework>net6.0</TargetFramework>
+        <LangVersion>10</LangVersion>
         <Nullable>enable</Nullable>
+        <WarningsAsErrors>nullable</WarningsAsErrors>
     </PropertyGroup>
+    <Import Project="Robust.Engine.Version.props" />
 </Project>

MSBuild/Robust.Engine.targets

@@ -1,2 +1,3 @@
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="12.0">
+  <Import Project="Robust.Analyzers.targets" />
 </Project>

MSBuild/Robust.Properties.targets

@@ -26,7 +26,7 @@
     <TargetOS Condition="'$(TargetOS)' == ''">$(ActualOS)</TargetOS>
     <Python>python3</Python>
     <Python Condition="'$(ActualOS)' == 'Windows'">py -3</Python>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <EnableClientScripting>True</EnableClientScripting>
     <!-- Client scripting is disabled on full release builds for security and size reasons. -->
     <EnableClientScripting Condition="'$(FullRelease)' == 'True'">False</EnableClientScripting>

MSBuild/Robust.Trimming.targets

@@ -0,0 +1,122 @@
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="12.0">
+  <!--
+  Stuff for using ILLink trimming without self-contained deployments.
+  This is not something officially supported by the .NET SDK currently, but we can simply run ILLink ourselves.
+  -->
+
+  <!--
+  A lot of stuff taken from Microsoft.NET.ILLink.targets in the SDK files.
+  -->
+
+  <ItemDefinitionGroup>
+    <RobustLinkRoots>
+      <Visible>false</Visible>
+    </RobustLinkRoots>
+    <RobustLinkAssemblies>
+      <Visible>false</Visible>
+    </RobustLinkAssemblies>
+  </ItemDefinitionGroup>
+
+  <Target Name="RobustILLink"
+          BeforeTargets="ILLink"
+          Condition="'$(PublishTrimmed)' != 'true' And
+                       '$(RobustILLink)' == 'true'"
+          DependsOnTargets="_ComputeAssembliesToPostprocessOnPublish">
+
+    <ComputeManagedAssemblies Assemblies="@(ResolvedFileToPublish)">
+      <Output TaskParameter="ManagedAssemblies" ItemName="_ResolvedFileToPublishFiltered" />
+    </ComputeManagedAssemblies>
+
+    <JoinItems Left="@(_ResolvedFileToPublishFiltered)" LeftKey="FileName" LeftMetadata="*"
+               Right="@(RobustLinkRoots)"
+               ItemSpecToUse="Left">
+      <Output TaskParameter="JoinResult" ItemName="_RobustLinkRootsJoined" />
+    </JoinItems>
+
+    <JoinItems Left="@(_ResolvedFileToPublishFiltered)" LeftKey="FileName" LeftMetadata="*"
+               Right="@(RobustLinkAssemblies)"
+               ItemSpecToUse="Left">
+      <Output TaskParameter="JoinResult" ItemName="_RobustLinkAssembliesJoined" />
+    </JoinItems>
+
+    <PropertyGroup>
+      <TrimMode Condition=" '$(TrimMode)' == '' ">link</TrimMode>
+      <TrimmerDefaultAction Condition=" '$(TrimmerDefaultAction)' == '' ">copy</TrimmerDefaultAction>
+      <_ExtraTrimmerArgs>--skip-unresolved true $(_ExtraTrimmerArgs)</_ExtraTrimmerArgs>
+      <ILLinkTreatWarningsAsErrors Condition=" '$(ILLinkTreatWarningsAsErrors)' == '' ">$(TreatWarningsAsErrors)</ILLinkTreatWarningsAsErrors>
+      <TrimmerSingleWarn Condition=" '$(TrimmerSingleWarn)' == '' ">true</TrimmerSingleWarn>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <RobustAssemblyToLink Include="@(_RobustLinkRootsJoined)">
+        <TrimMode>Copy</TrimMode>
+      </RobustAssemblyToLink>
+      <RobustAssemblyToLink Include="@(_RobustLinkAssembliesJoined)">
+        <TrimMode>Link</TrimMode>
+      </RobustAssemblyToLink>
+    </ItemGroup>
+
+    <ItemGroup>
+      <!-- The linker implicitly picks up PDBs next to input assemblies. We will filter these out of the publish set. -->
+      <__PDBToLink Include="@(ResolvedFileToPublish)" Exclude="@(RobustAssemblyToLink->'%(RelativeDir)%(Filename).pdb')" />
+      <_PDBToLink Include="@(ResolvedFileToPublish)" Exclude="@(__PDBToLink)" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <_LinkedResolvedFileToPublishCandidate Include="@(RobustAssemblyToLink->'$(IntermediateLinkDir)%(Filename)%(Extension)')" />
+      <_LinkedResolvedFileToPublishCandidate Include="@(_PDBToLink->'$(IntermediateLinkDir)%(Filename)%(Extension)')" />
+    </ItemGroup>
+
+    <!--<Message Text="@(ResolvedFileToPublish)" Importance="high" />-->
+
+    <ItemGroup>
+      <_TrimmerFeatureSettings Include="@(RuntimeHostConfigurationOption)"
+                               Condition="'%(RuntimeHostConfigurationOption.Trim)' == 'true'" />
+    </ItemGroup>
+
+    <Delete Files="@(_LinkedResolvedFileToPublishCandidate)" />
+    <ILLink AssemblyPaths="@(RobustAssemblyToLink)"
+            ReferenceAssemblyPaths="@(ReferencePath)"
+            RootAssemblyNames="@(RobustLinkRoots)"
+            TrimMode="Skip"
+            DefaultAction="$(TrimmerDefaultAction)"
+            RemoveSymbols="false"
+            FeatureSettings="@(_TrimmerFeatureSettings)"
+            CustomData="@(_TrimmerCustomData)"
+
+            BeforeFieldInit="$(_TrimmerBeforeFieldInit)"
+            OverrideRemoval="$(_TrimmerOverrideRemoval)"
+            UnreachableBodies="$(_TrimmerUnreachableBodies)"
+            UnusedInterfaces="$(_TrimmerUnusedInterfaces)"
+            IPConstProp="$(_TrimmerIPConstProp)"
+            Sealer="$(_TrimmerSealer)"
+
+            Warn="$(ILLinkWarningLevel)"
+            NoWarn="$(NoWarn)"
+            TreatWarningsAsErrors="$(ILLinkTreatWarningsAsErrors)"
+            WarningsAsErrors="$(WarningsAsErrors)"
+            WarningsNotAsErrors="$(WarningsNotAsErrors)"
+            SingleWarn="$(TrimmerSingleWarn)"
+
+            CustomSteps="@(_TrimmerCustomSteps)"
+            RootDescriptorFiles="@(TrimmerRootDescriptor)"
+            OutputDirectory="$(IntermediateLinkDir)"
+            DumpDependencies="$(_TrimmerDumpDependencies)"
+            ExtraArgs="$(_ExtraTrimmerArgs)"
+            ToolExe="$(_DotNetHostFileName)"
+            ToolPath="$(_DotNetHostDirectory)"
+            ContinueOnError="ErrorAndContinue">
+      <Output TaskParameter="ExitCode" PropertyName="_ILLinkExitCode" />
+    </ILLink>
+
+    <Touch Files="$(_LinkSemaphore)" AlwaysCreate="true" Condition=" '$(_ILLinkExitCode)' == '0' " />
+
+    <ItemGroup>
+      <_LinkedResolvedFileToPublish Include="@(_LinkedResolvedFileToPublishCandidate)" Condition="Exists('%(Identity)')" />
+      <ResolvedFileToPublish Remove="@(RobustAssemblyToLink)" />
+      <ResolvedFileToPublish Remove="@(_PDBToLink)" />
+      <ResolvedFileToPublish Include="@(_LinkedResolvedFileToPublish)" />
+    </ItemGroup>
+  </Target>
+
+</Project>

MSBuild/XamlIL.targets

@@ -1,6 +1,8 @@
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="12.0">
   <PropertyGroup>
-    <RobustUseExternalMSBuild>true</RobustUseExternalMSBuild>
+    <!-- Avoid MSBuild adding a None entry for XAML files because they'd show up TWICE in the project view. -->
+    <DefaultItemExcludes>**/*.xaml</DefaultItemExcludes>
+    <RobustUseExternalMSBuild>false</RobustUseExternalMSBuild>
     <_RobustUseExternalMSBuild>$(RobustUseExternalMSBuild)</_RobustUseExternalMSBuild>
     <_RobustUseExternalMSBuild Condition="'$(_RobustForceInternalMSBuild)' == 'true'">false</_RobustUseExternalMSBuild>
   </PropertyGroup>

OpenToolkit.GraphicsLibraryFramework/Enums/WindowHintBool.cs

@@ -129,5 +129,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         /// for controlling sRGB rendering and a created OpenGL ES context will always have sRGB rendering enabled.
         /// </summary>
         SrgbCapable = 0x0002100E,
+
+        ScaleToMonitor = 0x0002200C,
     }
 }

OpenToolkit.GraphicsLibraryFramework/GLFW.cs

@@ -10,7 +10,6 @@
 using System;
 using System.Runtime.InteropServices;
 using static OpenToolkit.GraphicsLibraryFramework.GLFWNative;
-using static Robust.Shared.Utility.MarshalHelper;
 
 namespace OpenToolkit.GraphicsLibraryFramework
 {
@@ -211,7 +210,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         /// <seealso cref="GetVersion"/>
         public static unsafe string GetVersionString()
         {
-            return PtrToStringUTF8(glfwGetVersionString());
+            return Marshal.PtrToStringUTF8((IntPtr) glfwGetVersionString());
         }
 
         /// <summary>
@@ -272,7 +271,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         {
             byte* desc;
             var code = glfwGetError(&desc);
-            description = PtrToStringUTF8(desc);
+            description = Marshal.PtrToStringUTF8((IntPtr) desc);
             return code;
         }
 
@@ -590,7 +589,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         /// </remarks>
         public static unsafe string GetMonitorName(Monitor* monitor)
         {
-            return PtrToStringUTF8(glfwGetMonitorName(monitor));
+            return Marshal.PtrToStringUTF8((IntPtr) glfwGetMonitorName(monitor));
         }
 
         /// <summary>
@@ -902,7 +901,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         /// </remarks>
         public static unsafe void WindowHint(WindowHintString hint, string value)
         {
-            var ptr = StringToCoTaskMemUTF8(value);
+            var ptr = Marshal.StringToCoTaskMemUTF8(value);
 
             try
             {
@@ -1364,7 +1363,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         /// </remarks>
         public static unsafe string GetKeyName(Keys key, int scanCode)
         {
-            return PtrToStringUTF8(glfwGetKeyName(key, scanCode));
+            return Marshal.PtrToStringUTF8((IntPtr) glfwGetKeyName(key, scanCode));
         }
 
         /// <summary>
@@ -2278,7 +2277,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         /// </remarks>
         public static unsafe string GetJoystickName(int jid)
         {
-            return PtrToStringUTF8(glfwGetJoystickName(jid));
+            return Marshal.PtrToStringUTF8((IntPtr) glfwGetJoystickName(jid));
         }
 
         /// <summary>
@@ -2351,7 +2350,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         /// </remarks>
         public static unsafe string GetJoystickGUID(int jid)
         {
-            return PtrToStringUTF8(glfwGetJoystickGUID(jid));
+            return Marshal.PtrToStringUTF8((IntPtr) glfwGetJoystickGUID(jid));
         }
 
         /// <summary>
@@ -2509,7 +2508,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         /// </remarks>
         public static unsafe bool UpdateGamepadMappings(string newMapping)
         {
-            var ptr = StringToCoTaskMemUTF8(newMapping);
+            var ptr = Marshal.StringToCoTaskMemUTF8(newMapping);
             try
             {
                 return glfwUpdateGamepadMappings((byte*)ptr) == GLFW_TRUE;
@@ -2585,7 +2584,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         /// </remarks>
         public static unsafe string GetGamepadName(int jid)
         {
-            return PtrToStringUTF8(glfwGetGamepadName(jid));
+            return Marshal.PtrToStringUTF8((IntPtr) glfwGetGamepadName(jid));
         }
 
         /// <summary>
@@ -2854,7 +2853,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         /// </remarks>
         public static unsafe bool ExtensionSupported(string extensionName)
         {
-            var ptr = StringToCoTaskMemUTF8(extensionName);
+            var ptr = Marshal.StringToCoTaskMemUTF8(extensionName);
 
             try
             {
@@ -2893,7 +2892,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         /// <seealso cref="ExtensionSupported" />
         public static unsafe IntPtr GetProcAddress(string procName)
         {
-            var ptr = StringToCoTaskMemUTF8(procName);
+            var ptr = Marshal.StringToCoTaskMemUTF8(procName);
 
             try
             {
@@ -3085,7 +3084,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         /// </remarks>
         public static unsafe Window* CreateWindow(int width, int height, string title, Monitor* monitor, Window* share)
         {
-            var ptr = StringToCoTaskMemUTF8(title);
+            var ptr = Marshal.StringToCoTaskMemUTF8(title);
 
             try
             {
@@ -3306,7 +3305,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         /// <seealso cref="SetClipboardString"/>
         public static unsafe string GetClipboardString(Window* window)
         {
-            return PtrToStringUTF8(glfwGetClipboardString(window));
+            return Marshal.PtrToStringUTF8((IntPtr) glfwGetClipboardString(window));
         }
 
         /// <summary>
@@ -3917,7 +3916,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         /// <seealso cref="GetClipboardString"/>
         public static unsafe void SetClipboardString(Window* window, string data)
         {
-            var ptr = StringToCoTaskMemUTF8(data);
+            var ptr = Marshal.StringToCoTaskMemUTF8(data);
 
             try
             {
@@ -4751,7 +4750,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         /// </remarks>
         public static unsafe void SetWindowTitle(Window* window, string title)
         {
-            var ptr = StringToCoTaskMemUTF8(title);
+            var ptr = Marshal.StringToCoTaskMemUTF8(title);
 
             try
             {
@@ -5340,7 +5339,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
             var array = new string[count];
             for (var i = 0; i < count; i++)
             {
-                array[i] = PtrToStringUTF8(ptr[i]);
+                array[i] = Marshal.PtrToStringUTF8((IntPtr) ptr[i]);
             }
 
             return array;
@@ -5386,7 +5385,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
         /// <returns>The address of the function, or <c>null</c> if an error occurred.</returns>
         public static unsafe IntPtr GetInstanceProcAddress(VkHandle instance, string procName)
         {
-            var ptr = StringToCoTaskMemUTF8(procName);
+            var ptr = Marshal.StringToCoTaskMemUTF8(procName);
 
             try
             {
@@ -5551,5 +5550,15 @@ namespace OpenToolkit.GraphicsLibraryFramework
         {
             return glfwGetX11Window(window);
         }
+
+        public static unsafe IntPtr GetX11Display(Window* window)
+        {
+            return glfwGetX11Display(window);
+        }
+
+        public static unsafe IntPtr GetWin32Window(Window* window)
+        {
+            return glfwGetWin32Window(window);
+        }
     }
 }

OpenToolkit.GraphicsLibraryFramework/GLFWNative.cs

@@ -17,20 +17,19 @@ namespace OpenToolkit.GraphicsLibraryFramework
             // On net472, we rely on Mono's DllMap for this. See the .dll.config file.
             NativeLibrary.SetDllImportResolver(typeof(GLFWNative).Assembly, (name, assembly, path) =>
             {
+                // Please keep in sync with what Robust.Shared/DllMapHelper.cs does.
+
                 if (name != "glfw3.dll")
                 {
                     return IntPtr.Zero;
                 }
 
-                if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
-                {
-                    return NativeLibrary.Load("libglfw.so.3", assembly, path);
-                }
+                string rName = null;
+                if (OperatingSystem.IsLinux()) rName = "libglfw.so.3";
+                else if (OperatingSystem.IsMacOS()) rName = "libglfw.3.dylib";
 
-                if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
-                {
-                    return NativeLibrary.Load("libglfw.3.dylib", assembly, path);
-                }
+                if ((rName != null) && NativeLibrary.TryLoad(rName, assembly, path, out var handle))
+                    return handle;
 
                 return IntPtr.Zero;
             });
@@ -405,5 +404,11 @@ namespace OpenToolkit.GraphicsLibraryFramework
 
         [DllImport(LibraryName)]
         public static extern uint glfwGetX11Window(Window* window);
+
+        [DllImport(LibraryName)]
+        public static extern IntPtr glfwGetX11Display(Window* window);
+
+        [DllImport(LibraryName)]
+        public static extern IntPtr glfwGetWin32Window(Window* window);
     }
 }

OpenToolkit.GraphicsLibraryFramework/OpenToolkit.GraphicsLibraryFramework.csproj

@@ -14,13 +14,4 @@
     <PackageReference Condition="'$(TargetFramework)' == 'net472'" Include="System.Memory" Version="4.5.3" />
   </ItemGroup>
 
-  <ItemGroup>
-    <Content Include="OpenToolkit.GraphicsLibraryFramework.dll.config">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
-  </ItemGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\Robust.Shared\Robust.Shared.csproj" />
-  </ItemGroup>
 </Project>

OpenToolkit.GraphicsLibraryFramework/OpenToolkit.GraphicsLibraryFramework.dll.config

@@ -1,5 +0,0 @@
-<configuration>
-    <!-- I actually have no idea whether this works on FreeBSD but it can't hurt to set it as such. -->
-    <dllmap os="linux,freebsd" dll="glfw3.dll" target="glfw.so.3" />
-    <dllmap os="osx" dll="glfw3.dll" target="glfw.3.dylib" />
-</configuration>

README.md

@@ -1,25 +1,16 @@
 ![Robust Toolbox](https://raw.githubusercontent.com/space-wizards/asset-dump/3dd3078e49e3a7e06709a6e0fc6e3223d8d44ca2/robust.png)
 
-[![Build status](https://ci.appveyor.com/api/projects/status/ygb7t8hsj3wt7pnm/branch/master?svg=true)](https://ci.appveyor.com/project/Silvertorch5/space-station-14/branch/master)
-[![Coverage](https://sonarcloud.io/api/project_badges/measure?project=ss14&metric=coverage)](https://sonarcloud.io/dashboard?id=ss14)
+Robust Toolbox is an engine primarily being developed for [Space Station 14](https://github.com/space-wizards/space-station-14), although we're working on making it usable for both [singleplayer](https://github.com/space-wizards/RobustToolboxTemplateSingleplayer) and [multiplayer](https://github.com/space-wizards/RobustToolboxTemplate) projects.
 
-Robust Toolbox is a client/server backend for [Space Station 14](https://github.com/space-wizards/space-station-14).
+Use the [content repo](https://github.com/space-wizards/space-station-14) for actual development, even if you're modifying the engine itself.
 
-### *This repository is the *engine* section of SS14. This is the base engine all SS14 servers will be built on. As such, it does not start on its own: it needs the [content repo](https://github.com/space-wizards/space-station-14). Use said repo for actual development, even if you're modifying the engine itself. Think of Robust Toolbox as BYOND in the context of Spacestation 13.*
+## Project Links
 
-## Getting in Touch
+[Website](https://spacestation14.io/) | [Discord](https://discord.gg/t2jac3p) | [Forum](https://forum.spacestation14.io/) | [Steam](https://store.steampowered.com/app/1255460/Space_Station_14/) | [Standalone Download](https://spacestation14.io/about/nightlies/)
 
-* Website: [spacestation14.io](https://spacestation14.io/)
-* Discord: [Invite Link](https://discord.gg/t2jac3p)
-* IRC: `irc.rizon.net#spacebus`
-* Code Analysis: [Sonar Cloud](https://sonarcloud.io/dashboard?id=ss14)
-* Automatic Content Builds: [builds.spacestation14.io](https://builds.spacestation14.io/jenkins/)
+## Documentation/Wiki
 
-The IRC is setup to relay back and forth to the Discord server so [IRC nerds](https://xkcd.com/1782/) will not be left out.
-
-## Documentation
-
-We have various technical documentation articles on the [HackMD Wiki](https://hackmd.io/@ss14/docs/%2F%40ss14%2Ftechnical-documentation-overview).
+The [wiki](https://docs.spacestation14.io/) has documentation on SS14s content, engine, game design and more. We also have lots of resources for new contributors to the project.
 
 ## Contributing
 
@@ -27,8 +18,8 @@ We are happy to accept contributions from anybody. Get in Discord or IRC if you
 
 ## Building
 
-**In practice, you usually don't build this repository directly.**
+This repository is the **engine** part of SS14. It's the base engine all SS14 servers will be built on. As such, it does not start on its own: it needs the [content repo](https://github.com/space-wizards/space-station-14). Think of Robust Toolbox as BYOND in the context of Spacestation 13.
 
 ## Legal Info
 
-See `legal.md` for licenses and copyright.
+See [legal.md](https://github.com/space-wizards/RobustToolbox/blob/master/legal.md) for licenses and copyright.

Resources/.gitignore

@@ -1,8 +0,0 @@
-# .import files are made by Godot because the assets are exposed if using symlinks.
-# IF you need to persist a .import file because of something used Godot-side (GUI-side),
-# you can do a negation with !.
-*.import
-# Negation would be like this:
-#!/Textures/UserInterface/1pxwhite.png.import
-!/Scenes/SS14Window/closewindow.png.import
-/I_MADE_THE_SYMLINK

Resources/EngineCredits/Libraries.yml

@@ -23,6 +23,48 @@
     OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
+- name: Box2D
+  license: |
+    MIT License
+
+    Copyright (c) 2019 Erin Catto
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+    SOFTWARE.
+
+- name: Bullet Physics SDK
+  license: |
+    The files in this repository are licensed under the zlib license, except for the files under 'Extras' and examples/ThirdPartyLibs.
+
+    Bullet Continuous Collision Detection and Physics Library
+    http://bulletphysics.org
+
+    This software is provided 'as-is', without any express or implied warranty.
+    In no event will the authors be held liable for any damages arising from the use of this software.
+    Permission is granted to anyone to use this software for any purpose,
+    including commercial applications, and to alter it and redistribute it freely,
+    subject to the following restrictions:
+
+    1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software.
+    If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+    2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+    3. This notice may not be removed or altered from any source distribution.
+
 - name: Castle Core
   license: |
     Copyright 2004-2016 Castle Project - http://www.castleproject.org/
@@ -317,6 +359,43 @@
     See the License for the specific language governing permissions and
     limitations under the License.
 
+- name: Farseer Physics Engine
+  license: |
+    Microsoft Permissive License (Ms-PL)
+
+    This license governs use of the accompanying software.
+    If you use the software, you accept this license.
+    If you do not accept the license, do not use the software.
+
+    1. Definitions
+    The terms "reproduce," "reproduction," "derivative works," and "distribution" have the same meaning here as under U.S. copyright law.
+    A "contribution" is the original software, or any additions or changes to the software.
+    A "contributor" is any person that distributes its contribution under this license.
+    "Licensed patents" are a contributor's patent claims that read directly on its contribution.
+
+    2. Grant of Rights
+    (A) Copyright Grant- Subject to the terms of this license, including the license conditions and limitations in section 3,
+    each contributor grants you a non-exclusive, worldwide, royalty-free copyright license to reproduce its contribution,
+    prepare derivative works of its contribution, and distribute its contribution or any derivative works that you create.
+    (B) Patent Grant- Subject to the terms of this license, including the license conditions and limitations in section 3,
+    each contributor grants you a non-exclusive, worldwide, royalty-free license under its licensed patents to
+    make, have made, use, sell, offer for sale, import, and/or otherwise dispose of its contribution in the software or
+    derivative works of the contribution in the software.
+
+    3. Conditions and Limitations
+    (A) No Trademark License- This license does not grant you rights to use any contributors' name, logo, or trademarks.
+    (B) If you bring a patent claim against any contributor over patents that you claim are infringed by the software,
+    your patent license from such contributor to the software ends automatically.
+    (C) If you distribute any portion of the software, you must retain all copyright, patent, trademark,
+    and attribution notices that are present in the software.
+    (D) If you distribute any portion of the software in source code form, you may do so only under this license by
+    including a complete copy of this license with your distribution. If you distribute any portion of the software in
+    compiled or object code form, you may only do so under a license that complies with this license.
+    (E) The software is licensed "as-is." You bear the risk of using it. The contributors give no express warranties,
+    guarantees or conditions. You may have additional consumer rights under your local laws which this license cannot change.
+    To the extent permitted under your local laws, the contributors exclude the implied warranties of
+    merchantability, fitness for a particular purpose and non-infringement.
+
 - name: Mono.Cecil
   license: |
     Copyright (c) 2008 - 2015 Jb Evain
@@ -574,29 +653,22 @@
     OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     SOFTWARE.
 
-- name: NGetText
+- name: Fluent.Net
   license: |
-    The MIT License (MIT)
+    blushingpenguin and Contributors
 
-    Copyright (c) 2012 Vitaly Zilnik
+    All rights reserved.
 
-    Permission is hereby granted, free of charge, to any person obtaining a copy
-    of this software and associated documentation files (the "Software"), to deal
-    in the Software without restriction, including without limitation the rights
-    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-    copies of the Software, and to permit persons to whom the Software is
-    furnished to do so, subject to the following conditions:
+    Licensed under the Apache License, Version 2.0 (the "License"); you may not use
+    this file except in compliance with the License. You may obtain a copy of the
+    License at
 
-    The above copyright notice and this permission notice shall be included in all
-    copies or substantial portions of the Software.
+        http://www.apache.org/licenses/LICENSE-2.0
 
-    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-    SOFTWARE.
+    Unless required by applicable law or agreed to in writing, software distributed
+    under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+    CONDITIONS OF ANY KIND, either express or implied. See the License for the
+    specific language governing permissions and limitations under the License.
 
 - name: NetSerializer
   license: |

Resources/EnginePrototypes/Shaders/stockshaders.yml

@@ -7,3 +7,8 @@
 - type: shader
   id: shaded
   kind: canvas
+
+- type: shader
+  id: bgra
+  kind: source
+  path: "/Shaders/Internal/bgra.swsl"

Resources/Locale/en-US/commands.ftl

@@ -0,0 +1,155 @@
+### Localization for engine console commands
+
+## generic
+
+cmd-parse-failure-integer = {$arg} is not a valid integer.
+cmd-parse-failure-float = {$arg} is not a valid float.
+cmd-parse-failure-bool = {$arg} is not a valid bool.
+
+
+## 'help' command
+cmd-help-desc = Display general help or help text for a specific command
+cmd-help-help = Usage: help [command name]
+    When no command name is provided, displays general-purpose help text. If a command name is provided, displays help text for that command.
+
+cmd-help-no-args = To display help for a specific command, write 'help <command>'. To list all available commands, write 'list'. To search for commands, use 'list <filter>'.
+cmd-help-unknown = Unknown command: { $command }
+cmd-help-top = { $command } - { $description }
+cmd-help-invalid-args = Invalid amount of arguments.
+cmd-help-arg-cmdname = [command name]
+
+## 'cvar' command
+cmd-cvar-desc = Gets or sets a CVar.
+cmd-cvar-help = Usage: cvar <name | ?> [value]
+    If a value is passed, the value is parsed and stored as the new value of the CVar.
+    If not, the current value of the CVar is displayed.
+    Use 'cvar ?' to get a list of all registered CVars.
+
+cmd-cvar-invalid-args = Must provide exactly one or two arguments.
+cmd-cvar-not-registered = CVar '{ $cvar }' is not registered. Use 'cvar ?' to get a list of all registered CVars.
+cmd-cvar-parse-error = Input value is in incorrect format for type { $type }
+cmd-cvar-compl-list = List available CVars
+cmd-cvar-arg-name = <name | ?>
+cmd-cvar-value-hidden = <value hidden>
+
+## 'list' command
+cmd-list-desc = Lists available commands, with optional search filter
+cmd-list-help = Usage: list [filter]
+    Lists all available commands. If an argument is provided, it will be used to filter commands by name.
+
+cmd-list-heading = SIDE NAME            DESC{"\u000A"}-------------------------{"\u000A"}
+
+cmd-list-arg-filter = [filter]
+
+## '>' command, aka remote exec
+cmd-remoteexec-desc = Executes server-side commands
+cmd-remoteexec-help = Usage: > <command> [arg] [arg] [arg...]
+    Executes a command on the server. This is necessary if a command with the same name exists on the client, as simply running the command would run the client command first.
+
+## 'gc' command
+cmd-gc-desc = Run the GC (Garbage Collector)
+cmd-gc-help = Usage: gc [generation]
+    Uses GC.Collect() to execute the Garbage Collector.
+    If an argument is provided, it is parsed as a GC generation number and GC.Collect(int) is used.
+    Use the 'gfc' command to do an LOH-compacting full GC.
+cmd-gc-failed-parse = Failed to parse argument.
+cmd-gc-arg-generation = [generation]
+
+## 'gcf' command
+cmd-gcf-desc = Run the GC, fully, compacting LOH and everything.
+cmd-gcf-help = Usage: gcf
+    Does a full GC.Collect(2, GCCollectionMode.Forced, true, true) while also compacting LOH.
+    This will probably lock up for hundreds of milliseconds, be warned.
+
+## 'gc_mode' command
+cmd-gc_mode-desc = Change/Read the GC Latency mode
+cmd-gc_mode-help = Usage: gc_mode [type]
+    If no argument is provided, returns the current GC latency mode.
+    If an argument is passed, it is parsed as GCLatencyMode and set as the GC latency mode.
+
+cmd-gc_mode-current = current gc latency mode: { $prevMode }
+cmd-gc_mode-possible = possible modes:
+cmd-gc_mode-option = - { $mode }
+cmd-gc_mode-unknown = unknown gc latency mode: { $arg }
+cmd-gc_mode-attempt = attempting gc latency mode change: { $prevMode } -> { $mode }
+cmd-gc_mode-result = resulting gc latency mode: { $mode }
+cmd-gc_mode-arg-type = [type]
+
+## 'mem' command
+cmd-mem-desc = Prints managed memory info
+cmd-mem-help = Usage: mem
+
+cmd-mem-report = Heap Size: { TOSTRING($heapSize, "N0") }
+    Total Allocated: { TOSTRING($totalAllocated, "N0") }
+
+## 'physics' command
+cmd-physics-overlay = {$overlay} is not a recognised overlay
+
+## 'lsasm' command
+cmd-lsasm-desc = Lists loaded assemblies by load context
+cmd-lsasm-help = Usage: lsasm
+
+## 'exec' command
+cmd-exec-desc = Executes a script file from the game's writeable user data
+cmd-exec-help = Usage: exec <fileName>
+    Each line in the file is executed as a single command, unless it starts with a #
+
+cmd-exec-arg-filename = <fileName>
+
+## 'dump_net_comps' command
+cmd-dump_net_comps-desc = Prints the table of networked components.
+cmd-dump_net_comps-help = Usage: dump_net-comps
+
+cmd-dump_net_comps-error-writeable = Registration still writeable, network ids have not been generated.
+cmd-dump_net_comps-header = Networked Component Registrations:
+
+## 'dump_event_tables' command
+cmd-dump_event_tables-desc = Prints directed event tables for an entity.
+cmd-dump_event_tables-help = Usage: dump_event_tables <entityUid>
+
+cmd-dump_event_tables-missing-arg-entity = Missing entity argument
+cmd-dump_event_tables-error-entity = Invalid entity
+cmd-dump_event_tables-arg-entity = <entityUid>
+
+## 'monitor' command
+cmd-monitor-desc = Toggles a debug monitor in the F3 menu.
+cmd-monitor-help = Usage: monitor <name>
+    Possible monitors are: { $monitors }
+    You can also use the special values "-all" and "+all" to hide or show all monitors, respectively.
+
+cmd-monitor-arg-monitor = <monitor>
+cmd-monitor-invalid-name = Invalid monitor name
+cmd-monitor-arg-count = Missing monitor argument
+cmd-monitor-minus-all-hint = Hides all monitors
+cmd-monitor-plus-all-hint = Shows all monitors
+
+
+## Mapping commands
+
+cmd-savemap-desc = Serializes a map to disk. Will not save a post-init map unless forced.
+cmd-savemap-help = savemap <MapID> <Path> [force]
+cmd-savemap-not-exist = Target map does not exist.
+cmd-savemap-init-warning = Attempted to save a post-init map without forcing the save.
+cmd-savemap-attempt = Attempting to save map {$mapId} to {$path}.
+cmd-savemap-success = Map successfully saved.
+cmd-hint-savemap-id = <MapID>
+cmd-hint-savemap-path = <Path>
+cmd-hint-savemap-force = [bool]
+
+cmd-loadmap-desc = Loads a map from disk into the game.
+cmd-loadmap-help = loadmap <MapID> <Path> [x] [y] [rotation] [consistentUids]
+cmd-loadmap-nullspace = You cannot load into map 0.
+cmd-loadmap-exists = Map {$mapId} already exists.
+cmd-loadmap-success = Map {$mapId} has been loaded from {$path}.
+cmd-loadmap-error = An error occurred while loading map from {$path}.
+cmd-hint-loadmap-x-position = [x-position]
+cmd-hint-loadmap-y-position = [y-position]
+cmd-hint-loadmap-rotation = [rotation]
+cmd-hint-loadmap-uids = [float]
+
+## 'flushcookies' command
+# Note: the flushcookies command is from Robust.Client.WebView, it's not in the main engine code.
+
+cmd-flushcookies-desc = Flush CEF cookie storage to disk
+cmd-flushcookies-help = This ensure cookies are properly saved to disk in the event of unclean shutdowns.
+    Note that the actual operation is asynchronous.

Resources/Locale/en-US/controls.ftl

@@ -0,0 +1,10 @@
+color-selector-sliders-red = R
+color-selector-sliders-green = G
+color-selector-sliders-blue = B
+color-selector-sliders-hue = H
+color-selector-sliders-saturation = S
+color-selector-sliders-value = V
+color-selector-sliders-alpha = A
+
+color-selector-sliders-rgb = RGB
+color-selector-sliders-hsv = HSV

Resources/Locale/en-US/custom-controls.ftl

@@ -0,0 +1,11 @@
+## EntitySpawnWindow
+
+entity-spawn-window-title = Entity Spawn Panel
+entity-spawn-window-search-bar-placeholder = search
+entity-spawn-window-clear-button = Clear
+entity-spawn-window-erase-button-text = Erase Mode
+entity-spawn-window-override-menu-tooltip = Override placement
+
+## Console
+
+console-line-edit-placeholder = Command Here

Resources/Locale/en-US/defaultwindow.ftl

@@ -0,0 +1 @@
+defaultwindow-placeholder-title = Exemplary Window Title Here

Resources/Locale/en-US/input.ftl

@@ -0,0 +1,54 @@
+input-key-Escape = Escape
+input-key-Control = Control
+input-key-Shift = Shift
+input-key-Alt = Alt
+input-key-Menu = Menu
+input-key-F1 = F1
+input-key-F2 = F2
+input-key-F3 = F3
+input-key-F4 = F4
+input-key-F5 = F5
+input-key-F6 = F6
+input-key-F7 = F7
+input-key-F8 = F8
+input-key-F9 = F9
+input-key-F10 = F10
+input-key-F11 = F11
+input-key-F12 = F12
+input-key-F13 = F13
+input-key-F14 = F14
+input-key-F15 = F15
+input-key-Pause = Pause
+input-key-Left = Left
+input-key-Up = Up
+input-key-Down = Down
+input-key-Right = Right
+input-key-Space = Space
+input-key-Return = Return
+input-key-NumpadEnter = Num Enter
+input-key-BackSpace = Backspace
+input-key-Tab = Tab
+input-key-PageUp = Page Up
+input-key-PageDown = Page Down
+input-key-End = End
+input-key-Home = Home
+input-key-Insert = Insert
+input-key-Delete = Delete
+input-key-MouseLeft = Mouse Left
+input-key-MouseRight = Mouse Right
+input-key-MouseMiddle = Mouse Middle
+input-key-MouseButton4 = Mouse 4
+input-key-MouseButton5 = Mouse 5
+input-key-MouseButton6 = Mouse 6
+input-key-MouseButton7 = Mouse 7
+input-key-MouseButton8 = Mouse 8
+input-key-MouseButton9 = Mouse 9
+
+input-key-LSystem-win = Left Win
+input-key-RSystem-win = Right Win
+input-key-LSystem-mac = Left Cmd
+input-key-RSystem-mac = Right Cmd
+input-key-LSystem-linux = Left Meta
+input-key-RSystem-linux = Right Meta
+
+input-key-unknown = <unknown key>

Resources/Locale/en-US/midi-commands.ftl

@@ -0,0 +1 @@
+midi-panic-command-description = Turns off every note for every active MIDI renderer.

Resources/Locale/en-US/tab-container.ftl

@@ -0,0 +1 @@
+tab-container-not-tab-title-provided = No title

Resources/Locale/en-US/view-variables.ftl

@@ -0,0 +1,11 @@
+## ViewVariablesInstanceEntity
+
+view-variable-instance-entity-server-components-add-component-button-placeholder = Add Component
+view-variable-instance-entity-client-variables-tab-title = Client Variables
+view-variable-instance-entity-client-components-tab-title = Client Components
+view-variable-instance-entity-server-variables-tab-title = Server Variables
+view-variable-instance-entity-server-components-tab-title = Server Components
+view-variable-instance-entity-client-components-search-bar-placeholder = Search
+view-variable-instance-entity-server-components-search-bar-placeholder = Search
+view-variable-instance-entity-add-window-server-components = Add Component [S]
+view-variable-instance-entity-add-window-client-components = Add Component [C]

Resources/Shaders/Internal/bgra.swsl

@@ -0,0 +1,6 @@
+// Swaps B and R channel so you can render BGRA stuff without swizzling at upload time.
+// Currently used by CEF.
+
+void fragment() {
+    COLOR = zTexture(UV).bgra;
+}

Resources/Shaders/Internal/fov-lighting.swsl

@@ -2,31 +2,22 @@ preset raw;
 
 #include "/Shaders/Internal/shadow_cast_shared.swsl"
 
+#include "/Shaders/Internal/fov_shared.swsl"
+
 const highp float g_MinVariance = 0.0;
 
-varying highp vec2 worldPosition;
-
-// Center of the FOV, in world coordinates.
-uniform highp vec2 center;
-
-void vertex()
-{
-    highp vec3 transformed = modelMatrix * vec3(VERTEX, 1.0);
-    worldPosition = transformed.xy;
-    transformed = projectionMatrix * viewMatrix * transformed;
-
-    VERTEX = transformed.xy;
-}
-
 void fragment()
 {
-    highp vec2 diff = worldPosition - center;
+    highp float ourDist = length(worldSpaceDiff);
 
-    highp float ourDist = length(diff);
-
-    highp vec2 occlDist = occludeDepth(diff, TEXTURE, 0.25);
+    highp vec2 occlDist = occludeDepth(worldSpaceDiff, TEXTURE, 0.25);
 
     highp float occlusion = ChebyshevUpperBound(occlDist, ourDist);
 
+    if (occlusion >= 1.0)
+    {
+        discard;
+    }
+
     COLOR = vec4(0.0, 0.0, 0.0, 1.0 - occlusion);
 }

Resources/Shaders/Internal/fov.swsl

@@ -2,32 +2,18 @@ preset raw;
 
 #include "/Shaders/Internal/shadow_cast_shared.swsl"
 
+#include "/Shaders/Internal/fov_shared.swsl"
+
 const highp float g_MinVariance = 0.0;
 
-varying highp vec2 worldPosition;
-
-// Center of the FOV, in world coordinates.
-uniform highp vec2 center;
-
-void vertex()
-{
-    highp vec3 transformed = modelMatrix * vec3(VERTEX, 1.0);
-    worldPosition = transformed.xy;
-    transformed = projectionMatrix * viewMatrix * transformed;
-
-    VERTEX = transformed.xy;
-}
-
 void fragment()
 {
-    highp vec2 diff = worldPosition - center;
+    highp float ourDist = length(worldSpaceDiff);
 
-    highp float ourDist = length(diff);
-
-    highp float occlDist = occludeDepth(diff, TEXTURE, 0.75).r;
+    highp float occlDist = occludeDepth(worldSpaceDiff, TEXTURE, 0.75).r;
 
     // *Very* simple biased shadow check for FOV.
-    if (!doesOcclude(diff, TEXTURE, 0.75, -0.75/32.0))
+    if (!doesOcclude(worldSpaceDiff, TEXTURE, 0.75, -0.75/32.0))
     {
         discard;
     }

Resources/Shaders/Internal/fov_shared.swsl

@@ -0,0 +1,16 @@
+// Shared between fov-lighting.swsl and fov.swsl, which both use the Clyde quad,
+//  manually transformed into clip-space to cover the entire viewport
+
+// World-space position offset from centre to pixel.
+varying highp vec2 worldSpaceDiff;
+
+// Inverted transformation matrix from clip coordinates to difference coordinates.
+uniform highp mat3 clipToDiff;
+
+void vertex()
+{
+    // Convert quad-space (0.0 to 1.0) to clip-space (-1.0 to 1.0)
+    VERTEX = (VERTEX.xy - 0.5) * 2.0;
+    worldSpaceDiff = (clipToDiff * vec3(VERTEX, 1.0)).xy;
+}
+

Resources/Shaders/Internal/light-blur.swsl

@@ -0,0 +1,41 @@
+preset raw;
+
+uniform highp vec2 direction;
+uniform highp vec2 size;
+uniform highp float radius;
+
+varying highp vec2 pos;
+varying highp vec4 blurPos1;
+varying highp vec4 blurPos2;
+
+
+void vertex()
+{
+    highp float aspect = size.y / size.x;
+    highp float horRadius = aspect * radius;
+
+    highp vec2 offset = vec2(horRadius, radius) * direction;
+
+    VERTEX = apply_mvp(VERTEX);
+
+    pos = (VERTEX + vec2(1.0)) / 2.0;
+
+    blurPos1.xy = pos + offset;
+    blurPos1.zw = pos - offset;
+    blurPos2.xy = pos + offset * 2.0;
+    blurPos2.zw = pos - offset * 2.0;
+}
+
+
+void fragment()
+{
+    // Very simple gaussian blur.
+    highp vec4 sum = zTexture(pos) * 0.375;
+
+    sum += zTexture(blurPos1.xy) * 0.25;
+    sum += zTexture(blurPos1.zw) * 0.25;
+    sum += zTexture(blurPos2.xy) * 0.0625;
+    sum += zTexture(blurPos2.zw) * 0.0625;
+
+    COLOR = sum;
+}

Resources/Shaders/Internal/light-soft.swsl

@@ -1,5 +1,11 @@
 #include "/Shaders/Internal/light_shared.swsl"
 
+highp vec4 calcGaussianWeights(highp float sigma, highp vec4 offset)
+{
+    highp vec4 eExp = offset * offset / (2.0 * sigma * sigma);
+    return exp(-eExp) / (sigma * sqrt(2.0 * PI));
+}
+
 highp float createOcclusion(highp vec2 diff)
 {
     // Calculate vector perpendicular to light vector.
@@ -8,23 +14,57 @@ highp float createOcclusion(highp vec2 diff)
 
     highp float ourDist = length(diff);
 
-    highp vec2 occlDist = occludeDepth(diff, shadowMap, lightIndex);
+    // Sample 7 points on a line perpendicular to the light source.
+    // Depending on the closest point, we change the gaussian weights down below
+    // to change the "narrowness" of the samples.
+    perpendicular *= lightSoftness * 1.5;
+
+    // Get all the samples we need.
+    highp vec2 sample1 = occludeDepth(diff, shadowMap, lightIndex);
+    highp vec2 sample2 = occludeDepth(diff + perpendicular, shadowMap, lightIndex);
+    highp vec2 sample3 = occludeDepth(diff - perpendicular, shadowMap, lightIndex);
+    highp vec2 sample4 = occludeDepth(diff + perpendicular * 2.0, shadowMap, lightIndex);
+    highp vec2 sample5 = occludeDepth(diff - perpendicular * 2.0, shadowMap, lightIndex);
+    highp vec2 sample6 = occludeDepth(diff + perpendicular * 3.0, shadowMap, lightIndex);
+    highp vec2 sample7 = occludeDepth(diff - perpendicular * 3.0, shadowMap, lightIndex);
+
+    highp float mindist =
+        min(sample1.x,
+        min(sample2.x,
+        min(sample3.x,
+        min(sample4.x,
+        min(sample5.x,
+        min(sample6.x,
+            sample7.x))))));
+
+    mindist = max(0.001, mindist);
 
     // Change soft shadow size based on distance from primary occluder.
-    highp float distRatio = (ourDist - occlDist.x) / occlDist.x / 2.0;
+    highp float distRatio = (ourDist - mindist);
 
-    perpendicular *= distRatio * lightSoftness;
+    // Sigma can never be zero so make sure to clamp.
+    // TODO: Scaling the dist ratio here in a more sane way might make shadows look better buuuut I'm lazy.
+    // Shadows look pretty nice already.
+    highp float sigma = max(0.001, distRatio * 0.75);
+    highp vec4 weights = calcGaussianWeights(sigma, vec4(0.0, 1.0, 2.0, 3.0));
 
-    // Totally not hacky PCF on top of VSM.
-    highp float occlusion = smoothstep(0.1, 1.0, ChebyshevUpperBound(occlDist, ourDist));
+    // Calculation of gaussian weights here is broken because it doesn't add up to 1.
+    // Fixing this is hard and if I had to guess too expensive for GPU shaders.
+    // So instead we add up the total weights and scale the result with that,
+    // so that we still end up with 0-1.
+    highp float totalWeigths = weights.x + weights.y * 2.0 + weights.z * 2.0 + weights.w * 2.0;
 
-    occlusion += shadowContrib(diff + perpendicular);
-    occlusion += shadowContrib(diff - perpendicular);
-    occlusion += shadowContrib(diff + perpendicular * 2.0);
-    occlusion += shadowContrib(diff - perpendicular * 2.0);
-    occlusion += shadowContrib(diff + perpendicular * 3.0);
-    occlusion += shadowContrib(diff - perpendicular * 3.0);
+    highp float occlusion = 0.0;
 
-    return occlusion / 7.0;
+    // Calculate actual occlusion with new weights.
+    occlusion += ChebyshevUpperBound(sample1, ourDist) * weights.x;
+    occlusion += ChebyshevUpperBound(sample2, ourDist) * weights.y;
+    occlusion += ChebyshevUpperBound(sample3, ourDist) * weights.y;
+    occlusion += ChebyshevUpperBound(sample4, ourDist) * weights.z;
+    occlusion += ChebyshevUpperBound(sample5, ourDist) * weights.z;
+    occlusion += ChebyshevUpperBound(sample6, ourDist) * weights.w;
+    occlusion += ChebyshevUpperBound(sample7, ourDist) * weights.w;
+
+    return occlusion / totalWeigths;
 }
 

Resources/Shaders/Internal/light_shared.swsl

@@ -40,7 +40,7 @@ void fragment()
     highp vec2 diff = worldPosition - lightCenter;
 
     // Totally not hacky PCF on top of VSM.
-    highp float occlusion = createOcclusion(diff);
+    highp float occlusion = lightIndex < 0.0 ? 1.0 : createOcclusion(diff);
 
     if (occlusion == 0.0)
     {

Resources/Textures/Logo/logo.png.yml

@@ -1,2 +0,0 @@
-sample:
-  filter: true

Resources/Textures/Logo/logo.svg

@@ -1,152 +0,0 @@
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-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
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-   inkscape:export-filename="/home/pj/Projects/space-station-14/RobustToolbox/Resources/Textures/Logo/logo.png"
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Resources/Textures/debugRotation.rsi/meta.json

@@ -0,0 +1,17 @@
+{
+    "version": 1,
+    "size": {
+        "x": 32,
+        "y": 32
+    },
+    "states": [{
+            "name": "direction1",
+            "directions": 1,
+            "delays": [[1.0]]
+        }, {
+            "name": "direction4",
+            "directions": 4,
+            "delays": [[1.0], [1.0], [1.0], [1.0]]
+        }
+    ]
+}

Robust.Analyzers.Tests/AccessAnalyzer_Test.cs

@@ -0,0 +1,822 @@
+using System.Threading.Tasks;
+using Microsoft.CodeAnalysis.CSharp.Testing;
+using Microsoft.CodeAnalysis.Testing;
+using Microsoft.CodeAnalysis.Testing.Verifiers;
+using NUnit.Framework;
+using Robust.Analyzers;
+
+using VerifyCS = Microsoft.CodeAnalysis.CSharp.Testing.NUnit.AnalyzerVerifier<Robust.Analyzers.AccessAnalyzer>;
+using static Microsoft.CodeAnalysis.Testing.DiagnosticResult;
+
+namespace Robust.Analyzers.Tests;
+
+[Parallelizable(ParallelScope.All | ParallelScope.Fixtures)]
+[TestFixture]
+public sealed class AccessAnalyzer_Test
+{
+    public Task Verifier(string code, params DiagnosticResult[] expected)
+    {
+        var test = new CSharpAnalyzerTest<AccessAnalyzer, NUnitVerifier>()
+        {
+            TestState =
+            {
+                AdditionalReferences = { typeof(AccessAnalyzer).Assembly },
+                Sources = { code }
+            },
+        };
+
+        // ExpectedDiagnostics cannot be set, so we need to AddRange here...
+        test.TestState.ExpectedDiagnostics.AddRange(expected);
+
+        return test.RunAsync();
+    }
+
+    /*
+     *
+     */
+
+    [Test]
+    public async Task ReadTest()
+    {
+        const string code = @"
+using System;
+using Robust.Shared.Analyzers;
+// ReSharper disable RedundantAssignment
+// ReSharper disable UnusedVariable
+// ReSharper disable ArrangeThisQualifier
+// ReSharper disable UnusedMember.Global
+// ReSharper disable UnusedType.Global
+
+public struct MyData
+{
+    public int MyField;
+
+    public static bool operator ==(MyData lhs, MyData rhs) => lhs.MyField == rhs.MyField;
+    public static bool operator !=(MyData lhs, MyData rhs) => lhs.MyField != rhs.MyField;
+}
+
+[Access(typeof(FriendlyClass),
+    Self = AccessPermissions.None,
+    Friend = AccessPermissions.None,
+    Other = AccessPermissions.None)]
+public sealed class TypeNobodyCanRead
+{
+    public MyData Data = default;
+
+    [Access(typeof(FriendlyClass),
+        Self = AccessPermissions.Read,
+        Friend = AccessPermissions.Read,
+        Other = AccessPermissions.Read)]
+    public MyData Data2 = default;
+
+    public void TestTypeNobodyCanRead(TypeNobodyCanRead obj)
+    {
+        // None of these accesses should be allowed.
+        var copy = Data;
+        var copy2 = this.Data;
+        var copy3 = obj.Data;
+
+        copy = Data;
+        copy = this.Data;
+        copy = obj.Data;
+
+        var copy4 = Data.MyField;
+        var copy5 = this.Data.MyField;
+        var copy6 = obj.Data.MyField;
+
+        if (Data == copy) {}
+        if (this.Data == copy) {}
+        if (obj.Data == copy) {}
+
+        if(Data.MyField == 0) {}
+        if(this.Data.MyField == 0) {}
+        if(obj.Data.MyField == 0) {}
+
+        // All of these accesses should be fine.
+        var copy7 = Data2;
+        var copy8 = this.Data2;
+        var copy9 = obj.Data2;
+
+        copy = Data2;
+        copy = this.Data2;
+        copy = obj.Data2;
+
+        var copy10 = Data2.MyField;
+        var copy11 = this.Data2.MyField;
+        var copy12 = obj.Data2.MyField;
+
+        if (Data2 == copy) {}
+        if (this.Data2 == copy) {}
+        if (obj.Data2 == copy) {}
+
+        if(Data2.MyField == 0) {}
+        if(this.Data2.MyField == 0) {}
+        if(obj.Data2.MyField == 0) {}
+    }
+}
+
+[Access(typeof(FriendlyClass),
+    Self = AccessPermissions.Read,
+    Friend = AccessPermissions.Read,
+    Other = AccessPermissions.Read)]
+public sealed class MemberNobodyCanRead
+{
+    [Access(typeof(FriendlyClass),
+        Self = AccessPermissions.None,
+        Friend = AccessPermissions.None,
+        Other = AccessPermissions.None)]
+    public MyData Data = default;
+
+    public MyData Data2 = default;
+
+    public void TestMemberNobodyCanRead(TypeNobodyCanRead obj)
+    {
+        // None of these accesses should be allowed.
+        var copy = Data;
+        var copy2 = this.Data;
+        var copy3 = obj.Data;
+
+        copy = Data;
+        copy = this.Data;
+        copy = obj.Data;
+
+        var copy4 = Data.MyField;
+        var copy5 = this.Data.MyField;
+        var copy6 = obj.Data.MyField;
+
+        if (Data == copy) {}
+        if (this.Data == copy) {}
+        if (obj.Data == copy) {}
+
+        if(Data.MyField == 0) {}
+        if(this.Data.MyField == 0) {}
+        if(obj.Data.MyField == 0) {}
+
+        // All of these accesses should be fine.
+        var copy7 = Data2;
+        var copy8 = this.Data2;
+        var copy9 = obj.Data2;
+
+        copy = Data2;
+        copy = this.Data2;
+        copy = obj.Data2;
+
+        var copy10 = Data2.MyField;
+        var copy11 = this.Data2.MyField;
+        var copy12 = obj.Data2.MyField;
+
+        if (Data2 == copy) {}
+        if (this.Data2 == copy) {}
+        if (obj.Data2 == copy) {}
+
+        if(Data2.MyField == 0) {}
+        if(this.Data2.MyField == 0) {}
+        if(obj.Data2.MyField == 0) {}
+    }
+}
+
+public sealed class FriendlyClass
+{
+    public void TestTypeNobodyCanRead(TypeNobodyCanRead obj)
+    {
+        // We shouldn't be able to access any of these, even if we're a friend..
+        var copy = obj.Data;
+        copy = obj.Data;
+
+        var copy2 = obj.Data.MyField;
+        copy2 = obj.Data.MyField;
+
+        if (obj.Data == copy) {}
+        if(obj.Data.MyField == 0) {}
+
+        // We should be allowed to access all of these, we're friends!
+        var copy3 = obj.Data2;
+        copy = obj.Data2;
+
+        var copy4 = obj.Data2.MyField;
+        copy4 = obj.Data2.MyField;
+
+        if(obj.Data2 == copy) {}
+        if(obj.Data2.MyField == 0) {}
+    }
+
+    public void TestMemberNobodyCanRead(MemberNobodyCanRead obj)
+    {
+        // We shouldn't be able to access any of these, even if we're a friend..
+        var copy = obj.Data;
+        copy = obj.Data;
+
+        var copy2 = obj.Data.MyField;
+        copy2 = obj.Data.MyField;
+
+        if (obj.Data == copy) {}
+        if(obj.Data.MyField == 0) {}
+
+        // We should be allowed to access all of these, we're friends!
+        var copy3 = obj.Data2;
+        copy = obj.Data2;
+
+        var copy4 = obj.Data2.MyField;
+        copy4 = obj.Data2.MyField;
+
+        if(obj.Data2 == copy) {}
+        if(obj.Data2.MyField == 0) {}
+    }
+}
+
+public sealed class OtherClass
+{
+    public void TestTypeNobodyCanRead(TypeNobodyCanRead obj)
+    {
+        // We shouldn't be able to access any of these, as 'other types' can't..
+        var copy = obj.Data;
+        copy = obj.Data;
+
+        var copy2 = obj.Data.MyField;
+        copy2 = obj.Data.MyField;
+
+        if (obj.Data == copy) {}
+        if(obj.Data.MyField == 0) {}
+
+        // We should be allowed to access all of these, they let others read it!
+        var copy3 = obj.Data2;
+        copy = obj.Data2;
+
+        var copy4 = obj.Data2.MyField;
+        copy4 = obj.Data2.MyField;
+
+        if(obj.Data2 == copy) {}
+        if(obj.Data2.MyField == 0) {}
+    }
+
+    public void TestMemberNobodyCanRead(MemberNobodyCanRead obj)
+    {
+        // We shouldn't be able to access any of these, as 'other types' can't..
+        var copy = obj.Data;
+        copy = obj.Data;
+
+        var copy2 = obj.Data.MyField;
+        copy2 = obj.Data.MyField;
+
+        if (obj.Data == copy) {}
+        if(obj.Data.MyField == 0) {}
+
+        // We should be allowed to access all of these, they let others read it!
+        var copy3 = obj.Data2;
+        copy = obj.Data2;
+
+        var copy4 = obj.Data2.MyField;
+        copy4 = obj.Data2.MyField;
+
+        if(obj.Data2 == copy) {}
+        if(obj.Data2.MyField == 0) {}
+    }
+}";
+
+        await Verifier(code,
+            // AUTO-GENERATED DIAGNOSTICS BELOW //
+// /0/Test0.cs(35,20): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(35, 20, 35, 24).WithArguments("a 'Read' same-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(36,21): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(36, 21, 36, 30).WithArguments("a 'Read' same-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(37,21): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(37, 21, 37, 29).WithArguments("a 'Read' same-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(39,16): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(39, 16, 39, 20).WithArguments("a 'Read' same-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(40,16): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(40, 16, 40, 25).WithArguments("a 'Read' same-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(41,16): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(41, 16, 41, 24).WithArguments("a 'Read' same-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(43,21): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(43, 21, 43, 25).WithArguments("a 'Read' same-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(44,21): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(44, 21, 44, 30).WithArguments("a 'Read' same-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(45,21): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(45, 21, 45, 29).WithArguments("a 'Read' same-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(47,13): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(47, 13, 47, 17).WithArguments("a 'Read' same-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(48,13): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(48, 13, 48, 22).WithArguments("a 'Read' same-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(49,13): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(49, 13, 49, 21).WithArguments("a 'Read' same-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(51,12): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(51, 12, 51, 16).WithArguments("a 'Read' same-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(52,12): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(52, 12, 52, 21).WithArguments("a 'Read' same-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(53,12): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(53, 12, 53, 20).WithArguments("a 'Read' same-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(95,20): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(95, 20, 95, 24).WithArguments("a 'Read' same-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(96,21): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(96, 21, 96, 30).WithArguments("a 'Read' same-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(97,21): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(97, 21, 97, 29).WithArguments("a 'Read' other-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(99,16): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(99, 16, 99, 20).WithArguments("a 'Read' same-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(100,16): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(100, 16, 100, 25).WithArguments("a 'Read' same-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(101,16): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(101, 16, 101, 24).WithArguments("a 'Read' other-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(103,21): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(103, 21, 103, 25).WithArguments("a 'Read' same-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(104,21): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(104, 21, 104, 30).WithArguments("a 'Read' same-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(105,21): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(105, 21, 105, 29).WithArguments("a 'Read' other-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(107,13): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(107, 13, 107, 17).WithArguments("a 'Read' same-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(108,13): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(108, 13, 108, 22).WithArguments("a 'Read' same-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(109,13): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(109, 13, 109, 21).WithArguments("a 'Read' other-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(111,12): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(111, 12, 111, 16).WithArguments("a 'Read' same-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(112,12): error RA0002: Tried to perform a 'Read' same-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(112, 12, 112, 21).WithArguments("a 'Read' same-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(113,12): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(113, 12, 113, 20).WithArguments("a 'Read' other-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(143,20): error RA0002: Tried to perform a 'Read' friend-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(143, 20, 143, 28).WithArguments("a 'Read' friend-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(144,16): error RA0002: Tried to perform a 'Read' friend-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(144, 16, 144, 24).WithArguments("a 'Read' friend-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(146,21): error RA0002: Tried to perform a 'Read' friend-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(146, 21, 146, 29).WithArguments("a 'Read' friend-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(147,17): error RA0002: Tried to perform a 'Read' friend-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(147, 17, 147, 25).WithArguments("a 'Read' friend-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(149,13): error RA0002: Tried to perform a 'Read' friend-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(149, 13, 149, 21).WithArguments("a 'Read' friend-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(150,12): error RA0002: Tried to perform a 'Read' friend-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(150, 12, 150, 20).WithArguments("a 'Read' friend-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(166,20): error RA0002: Tried to perform a 'Read' friend-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(166, 20, 166, 28).WithArguments("a 'Read' friend-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(167,16): error RA0002: Tried to perform a 'Read' friend-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(167, 16, 167, 24).WithArguments("a 'Read' friend-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(169,21): error RA0002: Tried to perform a 'Read' friend-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(169, 21, 169, 29).WithArguments("a 'Read' friend-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(170,17): error RA0002: Tried to perform a 'Read' friend-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(170, 17, 170, 25).WithArguments("a 'Read' friend-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(172,13): error RA0002: Tried to perform a 'Read' friend-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(172, 13, 172, 21).WithArguments("a 'Read' friend-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(173,12): error RA0002: Tried to perform a 'Read' friend-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(173, 12, 173, 20).WithArguments("a 'Read' friend-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(192,20): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(192, 20, 192, 28).WithArguments("a 'Read' other-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(193,16): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(193, 16, 193, 24).WithArguments("a 'Read' other-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(195,21): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(195, 21, 195, 29).WithArguments("a 'Read' other-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(196,17): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(196, 17, 196, 25).WithArguments("a 'Read' other-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(198,13): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(198, 13, 198, 21).WithArguments("a 'Read' other-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(199,12): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'TypeNobodyCanRead', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(199, 12, 199, 20).WithArguments("a 'Read' other-type", "Data", "TypeNobodyCanRead", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(215,20): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(215, 20, 215, 28).WithArguments("a 'Read' other-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(216,16): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(216, 16, 216, 24).WithArguments("a 'Read' other-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(218,21): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(218, 21, 218, 29).WithArguments("a 'Read' other-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(219,17): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(219, 17, 219, 25).WithArguments("a 'Read' other-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(221,13): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(221, 13, 221, 21).WithArguments("a 'Read' other-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(222,12): error RA0002: Tried to perform a 'Read' other-type access to member 'Data' in type 'MemberNobodyCanRead', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(222, 12, 222, 20).WithArguments("a 'Read' other-type", "Data", "MemberNobodyCanRead", "having no", "Member Permissions: ---------")
+            );
+    }
+
+    [Test]
+    public async Task WriteTest()
+    {
+        const string code = @"
+using System;
+using Robust.Shared.Analyzers;
+// ReSharper disable RedundantAssignment
+// ReSharper disable UnusedVariable
+// ReSharper disable ArrangeThisQualifier
+// ReSharper disable UnusedMember.Global
+// ReSharper disable UnusedType.Global
+// ReSharper disable NotAccessedField.Global
+// ReSharper disable RedundantDefaultMemberInitializer
+
+public struct MyData
+{
+    public int MyField;
+}
+
+[Access(typeof(FriendlyClass),
+    Self = AccessPermissions.None,
+    Friend = AccessPermissions.None,
+    Other = AccessPermissions.None)]
+public sealed class TypeNobodyCanWrite
+{
+    public MyData Data = default;
+
+    [Access(typeof(FriendlyClass),
+        Self = AccessPermissions.Write,
+        Friend = AccessPermissions.Write,
+        Other = AccessPermissions.Write)]
+    public MyData Data2 = default;
+
+    public void TestTypeNobodyCanWrite(TypeNobodyCanWrite obj)
+    {
+        // None of these accesses should be allowed.
+        Data = default;
+        this.Data = default;
+        obj.Data = default;
+
+        Data.MyField = 0;
+        this.Data.MyField = 0;
+        obj.Data.MyField = 0;
+
+        // All of these accesses should be fine.
+        Data2 = default;
+        this.Data2 = default;
+        obj.Data2 = default;
+
+        Data2.MyField = 0;
+        this.Data2.MyField = 0;
+        obj.Data2.MyField = 0;
+    }
+}
+
+[Access(typeof(FriendlyClass),
+    Self = AccessPermissions.Write,
+    Friend = AccessPermissions.Write,
+    Other = AccessPermissions.Write)]
+public sealed class MemberNobodyCanWrite
+{
+    [Access(typeof(FriendlyClass),
+        Self = AccessPermissions.None,
+        Friend = AccessPermissions.None,
+        Other = AccessPermissions.None)]
+    public MyData Data = default;
+
+    public MyData Data2 = default;
+
+    public void TestMemberNobodyCanWrite(TypeNobodyCanWrite obj)
+    {
+        // None of these accesses should be allowed.
+        Data = default;
+        this.Data = default;
+        obj.Data = default;
+
+        Data.MyField = 0;
+        this.Data.MyField = 0;
+        obj.Data.MyField = 0;
+
+        // All of these accesses should be fine.
+        Data2 = default;
+        this.Data2 = default;
+        obj.Data2 = default;
+
+        Data2.MyField = 0;
+        this.Data2.MyField = 0;
+        obj.Data2.MyField = 0;
+    }
+}
+
+public sealed class FriendlyClass
+{
+    public void TestTypeNobodyCanWrite(TypeNobodyCanWrite obj)
+    {
+        // We shouldn't be able to access any of these, even if we're a friend..
+        obj.Data = default;
+        obj.Data.MyField = 0;
+
+        // We should be allowed to access all of these, we're friends!
+        obj.Data2 = default;
+        obj.Data2.MyField = 0;
+    }
+
+    public void TestMemberNobodyCanWrite(MemberNobodyCanWrite obj)
+    {
+        // We shouldn't be able to access any of these, even if we're a friend..
+        obj.Data = default;
+        obj.Data.MyField = 0;
+
+        // We should be allowed to access all of these, we're friends!
+        obj.Data2 = default;
+        obj.Data2.MyField = 0;
+    }
+}
+
+public sealed class OtherClass
+{
+    public void TestTypeNobodyCanWrite(TypeNobodyCanWrite obj)
+    {
+        // We shouldn't be able to access any of these, as 'other types' can't..
+        obj.Data = default;
+        obj.Data.MyField = 0;
+
+        // We should be allowed to access all of these, they let others write!
+        obj.Data2 = default;
+        obj.Data2.MyField = 0;
+    }
+
+    public void TestMemberNobodyCanWrite(MemberNobodyCanWrite obj)
+    {
+        // We shouldn't be able to access any of these, as 'other types' can't..
+        obj.Data = default;
+        obj.Data.MyField = 0;
+
+        // We should be allowed to access all of these, they let others write!
+        obj.Data2 = default;
+        obj.Data2.MyField = 0;
+    }
+}";
+
+        await Verifier(code,
+            // AUTO-GENERATED DIAGNOSTICS BELOW //
+// /0/Test0.cs(34,9): error RA0002: Tried to perform a 'Write' same-type access to member 'Data' in type 'TypeNobodyCanWrite', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(34, 9, 34, 13).WithArguments("a 'Write' same-type", "Data", "TypeNobodyCanWrite", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(35,9): error RA0002: Tried to perform a 'Write' same-type access to member 'Data' in type 'TypeNobodyCanWrite', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(35, 9, 35, 18).WithArguments("a 'Write' same-type", "Data", "TypeNobodyCanWrite", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(36,9): error RA0002: Tried to perform a 'Write' same-type access to member 'Data' in type 'TypeNobodyCanWrite', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(36, 9, 36, 17).WithArguments("a 'Write' same-type", "Data", "TypeNobodyCanWrite", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(38,9): error RA0002: Tried to perform a 'Write' same-type access to member 'Data' in type 'TypeNobodyCanWrite', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(38, 9, 38, 13).WithArguments("a 'Write' same-type", "Data", "TypeNobodyCanWrite", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(39,9): error RA0002: Tried to perform a 'Write' same-type access to member 'Data' in type 'TypeNobodyCanWrite', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(39, 9, 39, 18).WithArguments("a 'Write' same-type", "Data", "TypeNobodyCanWrite", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(40,9): error RA0002: Tried to perform a 'Write' same-type access to member 'Data' in type 'TypeNobodyCanWrite', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(40, 9, 40, 17).WithArguments("a 'Write' same-type", "Data", "TypeNobodyCanWrite", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(70,9): error RA0002: Tried to perform a 'Write' same-type access to member 'Data' in type 'MemberNobodyCanWrite', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(70, 9, 70, 13).WithArguments("a 'Write' same-type", "Data", "MemberNobodyCanWrite", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(71,9): error RA0002: Tried to perform a 'Write' same-type access to member 'Data' in type 'MemberNobodyCanWrite', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(71, 9, 71, 18).WithArguments("a 'Write' same-type", "Data", "MemberNobodyCanWrite", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(72,9): error RA0002: Tried to perform a 'Write' other-type access to member 'Data' in type 'TypeNobodyCanWrite', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(72, 9, 72, 17).WithArguments("a 'Write' other-type", "Data", "TypeNobodyCanWrite", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(74,9): error RA0002: Tried to perform a 'Write' same-type access to member 'Data' in type 'MemberNobodyCanWrite', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(74, 9, 74, 13).WithArguments("a 'Write' same-type", "Data", "MemberNobodyCanWrite", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(75,9): error RA0002: Tried to perform a 'Write' same-type access to member 'Data' in type 'MemberNobodyCanWrite', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(75, 9, 75, 18).WithArguments("a 'Write' same-type", "Data", "MemberNobodyCanWrite", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(76,9): error RA0002: Tried to perform a 'Write' other-type access to member 'Data' in type 'TypeNobodyCanWrite', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(76, 9, 76, 17).WithArguments("a 'Write' other-type", "Data", "TypeNobodyCanWrite", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(94,9): error RA0002: Tried to perform a 'Write' friend-type access to member 'Data' in type 'TypeNobodyCanWrite', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(94, 9, 94, 17).WithArguments("a 'Write' friend-type", "Data", "TypeNobodyCanWrite", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(95,9): error RA0002: Tried to perform a 'Write' friend-type access to member 'Data' in type 'TypeNobodyCanWrite', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(95, 9, 95, 17).WithArguments("a 'Write' friend-type", "Data", "TypeNobodyCanWrite", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(105,9): error RA0002: Tried to perform a 'Write' friend-type access to member 'Data' in type 'MemberNobodyCanWrite', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(105, 9, 105, 17).WithArguments("a 'Write' friend-type", "Data", "MemberNobodyCanWrite", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(106,9): error RA0002: Tried to perform a 'Write' friend-type access to member 'Data' in type 'MemberNobodyCanWrite', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(106, 9, 106, 17).WithArguments("a 'Write' friend-type", "Data", "MemberNobodyCanWrite", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(119,9): error RA0002: Tried to perform a 'Write' other-type access to member 'Data' in type 'TypeNobodyCanWrite', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(119, 9, 119, 17).WithArguments("a 'Write' other-type", "Data", "TypeNobodyCanWrite", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(120,9): error RA0002: Tried to perform a 'Write' other-type access to member 'Data' in type 'TypeNobodyCanWrite', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(120, 9, 120, 17).WithArguments("a 'Write' other-type", "Data", "TypeNobodyCanWrite", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(130,9): error RA0002: Tried to perform a 'Write' other-type access to member 'Data' in type 'MemberNobodyCanWrite', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(130, 9, 130, 17).WithArguments("a 'Write' other-type", "Data", "MemberNobodyCanWrite", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(131,9): error RA0002: Tried to perform a 'Write' other-type access to member 'Data' in type 'MemberNobodyCanWrite', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(131, 9, 131, 17).WithArguments("a 'Write' other-type", "Data", "MemberNobodyCanWrite", "having no", "Member Permissions: ---------")
+            );
+    }
+
+    [Test]
+    public async Task ExecuteTest()
+    {
+        const string code = @"
+using System;
+using Robust.Shared.Analyzers;
+// ReSharper disable RedundantAssignment
+// ReSharper disable UnusedVariable
+// ReSharper disable ArrangeThisQualifier
+// ReSharper disable UnusedMember.Global
+// ReSharper disable UnusedType.Global
+// ReSharper disable NotAccessedField.Global
+// ReSharper disable RedundantDefaultMemberInitializer
+// ReSharper disable ReturnValueOfPureMethodIsNotUsed
+
+public struct MyData
+{
+    public int MyField;
+    public void MyMethod() {}
+}
+
+[Access(typeof(FriendlyClass),
+    Self = AccessPermissions.None,
+    Friend = AccessPermissions.None,
+    Other = AccessPermissions.None)]
+public sealed class TypeNobodyCanExecute
+{
+    public MyData Data = default;
+
+    [Access(typeof(FriendlyClass),
+        Self = AccessPermissions.Execute,
+        Friend = AccessPermissions.Execute,
+        Other = AccessPermissions.Execute)]
+    public MyData Data2 = default;
+
+    public void MyMethod() {}
+
+    [Access(typeof(FriendlyClass),
+        Self = AccessPermissions.Execute,
+        Friend = AccessPermissions.Execute,
+        Other = AccessPermissions.Execute)]
+    public void MyMethod2() {}
+
+    public void TestTypeNobodyCanExecute(TypeNobodyCanExecute obj)
+    {
+        // None of these accesses should be allowed.
+        MyMethod();
+        this.MyMethod();
+        obj.MyMethod();
+
+        Data.MyMethod();
+        this.Data.MyMethod();
+        obj.Data.MyMethod();
+
+        Data.MyField.ToString();
+        this.Data.MyField.ToString();
+        obj.Data.MyField.ToString();
+
+        // All of these accesses should be fine.
+        MyMethod2();
+        this.MyMethod2();
+        obj.MyMethod2();
+
+        Data2.MyMethod();
+        this.Data2.MyMethod();
+        obj.Data2.MyMethod();
+
+        Data2.MyField.ToString();
+        this.Data2.ToString();
+        obj.Data2.ToString();
+    }
+}
+
+[Access(typeof(FriendlyClass),
+    Self = AccessPermissions.Execute,
+    Friend = AccessPermissions.Execute,
+    Other = AccessPermissions.Execute)]
+public sealed class MemberNobodyCanExecute
+{
+    [Access(typeof(FriendlyClass),
+        Self = AccessPermissions.None,
+        Friend = AccessPermissions.None,
+        Other = AccessPermissions.None)]
+    public MyData Data = default;
+
+    public MyData Data2 = default;
+
+    [Access(typeof(FriendlyClass),
+        Self = AccessPermissions.None,
+        Friend = AccessPermissions.None,
+        Other = AccessPermissions.None)]
+    public void MyMethod() {}
+
+    public void MyMethod2() {}
+
+    public void TestMemberNobodyCanExecute(TypeNobodyCanExecute obj)
+    {
+        // None of these accesses should be allowed.
+        MyMethod();
+        this.MyMethod();
+        obj.MyMethod();
+
+        Data.MyMethod();
+        this.Data.MyMethod();
+        obj.Data.MyMethod();
+
+        Data.MyField.ToString();
+        this.Data.MyField.ToString();
+        obj.Data.MyField.ToString();
+
+        // All of these accesses should be fine.
+        MyMethod2();
+        this.MyMethod2();
+        obj.MyMethod2();
+
+        Data2.MyMethod();
+        this.Data2.MyMethod();
+        obj.Data2.MyMethod();
+
+        Data2.MyField.ToString();
+        this.Data2.ToString();
+        obj.Data2.ToString();
+    }
+}
+
+public sealed class FriendlyClass
+{
+    public void TestTypeNobodyCanExecute(TypeNobodyCanExecute obj)
+    {
+        // We shouldn't be able to access any of these, even if we're a friend..
+        obj.MyMethod();
+        obj.Data.MyMethod();
+        obj.Data.MyField.ToString();
+
+        // We should be allowed to access all of these, we're friends!
+        obj.MyMethod2();
+        obj.Data2.MyMethod();
+        obj.Data2.MyField.ToString();
+    }
+
+    public void TestMemberNobodyCanExecute(MemberNobodyCanExecute obj)
+    {
+        // We shouldn't be able to access any of these, even if we're a friend..
+        obj.MyMethod();
+        obj.Data.MyMethod();
+        obj.Data.MyField.ToString();
+
+        // We should be allowed to access all of these, we're friends!
+        obj.MyMethod2();
+        obj.Data2.MyMethod();
+        obj.Data2.MyField.ToString();
+    }
+}
+
+public sealed class OtherClass
+{
+    public void TestTypeNobodyCanExecute(TypeNobodyCanExecute obj)
+    {
+        // We shouldn't be able to access any of these, as 'other types' can't..
+        obj.MyMethod();
+        obj.Data.MyMethod();
+        obj.Data.MyField.ToString();
+
+        // We should be allowed to access all of these, they let others Execute!
+        obj.MyMethod2();
+        obj.Data2.MyMethod();
+        obj.Data2.MyField.ToString();
+    }
+
+    public void TestMemberNobodyCanExecute(MemberNobodyCanExecute obj)
+    {
+        // We shouldn't be able to access any of these, as 'other types' can't..
+        obj.MyMethod();
+        obj.Data.MyMethod();
+        obj.Data.MyField.ToString();
+
+        // We should be allowed to access all of these, they let others Execute!
+        obj.MyMethod2();
+        obj.Data2.MyMethod();
+        obj.Data2.MyField.ToString();
+    }
+}";
+
+        await Verifier(code,
+            // AUTO-GENERATED DIAGNOSTICS BELOW //
+// /0/Test0.cs(44,9): error RA0002: Tried to perform an 'Execute' same-type access to member 'MyMethod' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(44, 9, 44, 19).WithArguments("an 'Execute' same-type", "MyMethod", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(45,9): error RA0002: Tried to perform an 'Execute' same-type access to member 'MyMethod' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(45, 9, 45, 24).WithArguments("an 'Execute' same-type", "MyMethod", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(46,9): error RA0002: Tried to perform an 'Execute' same-type access to member 'MyMethod' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(46, 9, 46, 23).WithArguments("an 'Execute' same-type", "MyMethod", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(48,9): error RA0002: Tried to perform an 'Execute' same-type access to member 'Data' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(48, 9, 48, 13).WithArguments("an 'Execute' same-type", "Data", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(49,9): error RA0002: Tried to perform an 'Execute' same-type access to member 'Data' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(49, 9, 49, 18).WithArguments("an 'Execute' same-type", "Data", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(50,9): error RA0002: Tried to perform an 'Execute' same-type access to member 'Data' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(50, 9, 50, 17).WithArguments("an 'Execute' same-type", "Data", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(52,9): error RA0002: Tried to perform an 'Execute' same-type access to member 'Data' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(52, 9, 52, 13).WithArguments("an 'Execute' same-type", "Data", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(53,9): error RA0002: Tried to perform an 'Execute' same-type access to member 'Data' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(53, 9, 53, 18).WithArguments("an 'Execute' same-type", "Data", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(54,9): error RA0002: Tried to perform an 'Execute' same-type access to member 'Data' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(54, 9, 54, 17).WithArguments("an 'Execute' same-type", "Data", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(96,9): error RA0002: Tried to perform an 'Execute' same-type access to member 'MyMethod' in type 'MemberNobodyCanExecute', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(96, 9, 96, 19).WithArguments("an 'Execute' same-type", "MyMethod", "MemberNobodyCanExecute", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(97,9): error RA0002: Tried to perform an 'Execute' same-type access to member 'MyMethod' in type 'MemberNobodyCanExecute', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(97, 9, 97, 24).WithArguments("an 'Execute' same-type", "MyMethod", "MemberNobodyCanExecute", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(98,9): error RA0002: Tried to perform an 'Execute' other-type access to member 'MyMethod' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(98, 9, 98, 23).WithArguments("an 'Execute' other-type", "MyMethod", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(100,9): error RA0002: Tried to perform an 'Execute' same-type access to member 'Data' in type 'MemberNobodyCanExecute', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(100, 9, 100, 13).WithArguments("an 'Execute' same-type", "Data", "MemberNobodyCanExecute", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(101,9): error RA0002: Tried to perform an 'Execute' same-type access to member 'Data' in type 'MemberNobodyCanExecute', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(101, 9, 101, 18).WithArguments("an 'Execute' same-type", "Data", "MemberNobodyCanExecute", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(102,9): error RA0002: Tried to perform an 'Execute' other-type access to member 'Data' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(102, 9, 102, 17).WithArguments("an 'Execute' other-type", "Data", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(104,9): error RA0002: Tried to perform an 'Execute' same-type access to member 'Data' in type 'MemberNobodyCanExecute', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(104, 9, 104, 13).WithArguments("an 'Execute' same-type", "Data", "MemberNobodyCanExecute", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(105,9): error RA0002: Tried to perform an 'Execute' same-type access to member 'Data' in type 'MemberNobodyCanExecute', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(105, 9, 105, 18).WithArguments("an 'Execute' same-type", "Data", "MemberNobodyCanExecute", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(106,9): error RA0002: Tried to perform an 'Execute' other-type access to member 'Data' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(106, 9, 106, 17).WithArguments("an 'Execute' other-type", "Data", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(128,9): error RA0002: Tried to perform an 'Execute' friend-type access to member 'MyMethod' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(128, 9, 128, 23).WithArguments("an 'Execute' friend-type", "MyMethod", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(129,9): error RA0002: Tried to perform an 'Execute' friend-type access to member 'Data' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(129, 9, 129, 17).WithArguments("an 'Execute' friend-type", "Data", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(130,9): error RA0002: Tried to perform an 'Execute' friend-type access to member 'Data' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(130, 9, 130, 17).WithArguments("an 'Execute' friend-type", "Data", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(141,9): error RA0002: Tried to perform an 'Execute' friend-type access to member 'MyMethod' in type 'MemberNobodyCanExecute', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(141, 9, 141, 23).WithArguments("an 'Execute' friend-type", "MyMethod", "MemberNobodyCanExecute", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(142,9): error RA0002: Tried to perform an 'Execute' friend-type access to member 'Data' in type 'MemberNobodyCanExecute', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(142, 9, 142, 17).WithArguments("an 'Execute' friend-type", "Data", "MemberNobodyCanExecute", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(143,9): error RA0002: Tried to perform an 'Execute' friend-type access to member 'Data' in type 'MemberNobodyCanExecute', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(143, 9, 143, 17).WithArguments("an 'Execute' friend-type", "Data", "MemberNobodyCanExecute", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(157,9): error RA0002: Tried to perform an 'Execute' other-type access to member 'MyMethod' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(157, 9, 157, 23).WithArguments("an 'Execute' other-type", "MyMethod", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(158,9): error RA0002: Tried to perform an 'Execute' other-type access to member 'Data' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(158, 9, 158, 17).WithArguments("an 'Execute' other-type", "Data", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(159,9): error RA0002: Tried to perform an 'Execute' other-type access to member 'Data' in type 'TypeNobodyCanExecute', despite having no access. Type Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(159, 9, 159, 17).WithArguments("an 'Execute' other-type", "Data", "TypeNobodyCanExecute", "having no", "Type Permissions: ---------"),
+// /0/Test0.cs(170,9): error RA0002: Tried to perform an 'Execute' other-type access to member 'MyMethod' in type 'MemberNobodyCanExecute', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(170, 9, 170, 23).WithArguments("an 'Execute' other-type", "MyMethod", "MemberNobodyCanExecute", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(171,9): error RA0002: Tried to perform an 'Execute' other-type access to member 'Data' in type 'MemberNobodyCanExecute', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(171, 9, 171, 17).WithArguments("an 'Execute' other-type", "Data", "MemberNobodyCanExecute", "having no", "Member Permissions: ---------"),
+// /0/Test0.cs(172,9): error RA0002: Tried to perform an 'Execute' other-type access to member 'Data' in type 'MemberNobodyCanExecute', despite having no access. Member Permissions: ---------
+VerifyCS.Diagnostic().WithSpan(172, 9, 172, 17).WithArguments("an 'Execute' other-type", "Data", "MemberNobodyCanExecute", "having no", "Member Permissions: ---------")
+            );
+    }
+}

Robust.Analyzers.Tests/Robust.Analyzers.Tests.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <Import Project="..\MSBuild\Robust.Properties.targets" />
+  <Import Project="..\MSBuild\Robust.Engine.props" />
+  
+  <PropertyGroup>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+  
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CodeAnalysis.Analyzer.Testing" Version="1.1.1"/>
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.0.1"/>
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Analyzer.Testing.NUnit" Version="1.1.1"/>
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.0.1"/>
+    <PackageReference Include="NUnit" Version="3.13.2"/>
+    <PackageReference Include="NUnit.ConsoleRunner" Version="3.15.0"/>
+    <PackageReference Include="NUnit3TestAdapter" Version="4.2.1"/>
+    <PackageReference Include="NUnit.Analyzers" Version="3.3.0"/>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
+  </ItemGroup>
+  
+  <ItemGroup>
+    <ProjectReference Include="..\Robust.Analyzers\Robust.Analyzers.csproj"/>
+  </ItemGroup>
+</Project>

Robust.Analyzers/AccessAnalyzer.cs

@@ -0,0 +1,253 @@
+using System.Collections.Generic;
+using System.Collections.Immutable;
+using System.Diagnostics.CodeAnalysis;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.Diagnostics;
+using Microsoft.CodeAnalysis.Operations;
+using Robust.Shared.Analyzers.Implementation;
+
+namespace Robust.Analyzers
+{
+    [DiagnosticAnalyzer(LanguageNames.CSharp)]
+    public class AccessAnalyzer : DiagnosticAnalyzer
+    {
+        private const string AccessAttributeType = "Robust.Shared.Analyzers.AccessAttribute";
+        private const string PureAttributeType = "System.Diagnostics.Contracts.PureAttribute";
+
+        [SuppressMessage("ReSharper", "RS2008")]
+        private static readonly DiagnosticDescriptor AccessRule = new (
+            Diagnostics.IdAccess,
+            "Invalid access",
+            "Tried to perform {0} access to member '{1}' in type '{2}', despite {3} access. {4}.",
+            "Usage",
+            DiagnosticSeverity.Error,
+            true,
+            "Make sure to give the accessing type the correct access permissions.");
+
+        public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics =>
+            ImmutableArray.Create(AccessRule);
+
+        public override void Initialize(AnalysisContext context)
+        {
+            context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.Analyze | GeneratedCodeAnalysisFlags.ReportDiagnostics);
+            context.EnableConcurrentExecution();
+            context.RegisterOperationAction(CheckFriendship,
+                OperationKind.FieldReference,
+                OperationKind.PropertyReference,
+                OperationKind.MethodReference,
+                OperationKind.Invocation);
+        }
+
+        private void CheckFriendship(OperationAnalysisContext context)
+        {
+            var operation = context.Operation;
+
+            // The symbol representing the member being accessed.
+            ISymbol member;
+
+            // The operation to target when determining access type.
+            IOperation targetAccess;
+
+            switch (operation)
+            {
+                case IMemberReferenceOperation memberRef:
+                {
+                    member = memberRef.Member;
+                    targetAccess = memberRef.Parent;
+                    break;
+                }
+
+                case IInvocationOperation invocation:
+                {
+                    member = invocation.TargetMethod;
+                    targetAccess = invocation;
+                    break;
+                }
+
+                default:
+                    return;
+            }
+
+            // Get the info of the type defining the member, so we can check the attributes later...
+            var accessedType = member.ContainingType;
+
+            // Get the attributes
+            var friendAttribute = context.Compilation.GetTypeByMetadataName(AccessAttributeType);
+
+            // Get the type that is containing this expression, or, the type where this is happening.
+            if (context.ContainingSymbol?.ContainingType is not {} accessingType)
+                return;
+
+            // Determine which type of access is happening here... Read, write or execute?
+            var accessAttempt = DetermineAccess(context, targetAccess, operation);
+
+            // Check whether this is a "self" access, including inheritors.
+            var selfAccess = InheritsFromOrEquals(accessingType, accessedType);
+
+            // Helper function to deduplicate attribute-checking code.
+            bool CheckAttributeFriendship(AttributeData attribute, bool isMemberAttribute)
+            {
+                // If the attribute isn't the friend attribute, we don't care about it.
+                if (!SymbolEqualityComparer.Default.Equals(attribute.AttributeClass, friendAttribute))
+                    return false;
+
+                var self    = AccessAttribute.SelfDefaultPermissions;
+                var friends = AccessAttribute.FriendDefaultPermissions;
+                var others  = AccessAttribute.OtherDefaultPermissions;
+
+                foreach (var kv in attribute.NamedArguments)
+                {
+                    if (kv.Value.Value is not byte value)
+                        continue;
+
+                    var permissions = (AccessPermissions) value;
+
+                    switch (kv.Key)
+                    {
+                        case nameof(AccessAttribute.Self):
+                        {
+                            self = permissions;
+                            break;
+                        }
+
+                        case nameof(AccessAttribute.Friend):
+                        {
+                            friends = permissions;
+                            break;
+                        }
+
+                        case nameof(AccessAttribute.Other):
+                        {
+                            others = permissions;
+                            break;
+                        }
+
+                        default:
+                            continue;
+                    }
+                }
+
+                // By default, we will check the "other" permissions unless we find we're dealing with a friend or self.
+                var permissionCheck = others;
+
+                // Human-readable relation between accessing and accessed types.
+                var accessingRelation = "other-type";
+
+                if (!selfAccess)
+                {
+                    // This is not a self-access, so we need to determine whether the accessing type is a friend.
+                    // Check all types allowed in the friend attribute. (We assume there's only one constructor arg.)
+                    var types = attribute.ConstructorArguments[0].Values;
+
+                    foreach (var constant in types)
+                    {
+                        // Check if the value is a type...
+                        if (constant.Value is not INamedTypeSymbol friendType)
+                            continue;
+
+                        // Check if the accessing type is specified in the attribute...
+                        if (!InheritsFromOrEquals(accessingType, friendType))
+                            continue;
+
+                        // Set the permissions check to the friend permissions!
+                        permissionCheck = friends;
+                        accessingRelation = "friend-type";
+                        break;
+                    }
+                }
+                else
+                {
+                    // Self-access, so simply set the permissions check to self.
+                    permissionCheck = self;
+                    accessingRelation = "same-type";
+                }
+
+                // If we allow this access, return! All is good.
+                if ((accessAttempt & permissionCheck) != 0)
+                    return true;
+
+                // Access denied! Report an error.
+                context.ReportDiagnostic(
+                    Diagnostic.Create(AccessRule, operation.Syntax.GetLocation(),
+                        $"a{(accessAttempt == AccessPermissions.Execute ? "n" : "")} '{accessAttempt}' {accessingRelation}",
+                        $"{member.Name}",
+                        $"{accessedType.Name}",
+                        $"{(permissionCheck == AccessPermissions.None ? "having no" : $"only having '{permissionCheck}'")}",
+                        $"{(isMemberAttribute ? "Member" : "Type")} Permissions: {self.ToUnixPermissions()}{friends.ToUnixPermissions()}{others.ToUnixPermissions()}"));
+
+                // Only return ONE error.
+                return true;
+            }
+
+            // Check attributes in the member first, since they take priority and can override type restrictions.
+            foreach (var attribute in member.GetAttributes())
+            {
+                if(CheckAttributeFriendship(attribute, true))
+                    return;
+            }
+
+            // Check attributes in the type containing the member last.
+            foreach (var attribute in accessedType.GetAttributes())
+            {
+                if(CheckAttributeFriendship(attribute, false))
+                    return;
+            }
+        }
+
+        private static AccessPermissions DetermineAccess(OperationAnalysisContext context, IOperation operation, IOperation original)
+        {
+            switch (operation)
+            {
+                case IAssignmentOperation assign:
+                {
+                    return assign.Target.Equals(original) ? AccessPermissions.Write : AccessPermissions.Read;
+                }
+
+                case IInvocationOperation invoke:
+                {
+                    var pureAttribute = context.Compilation.GetTypeByMetadataName(PureAttributeType);
+
+                    foreach (var attribute in invoke.TargetMethod.GetAttributes())
+                    {
+                        // Pure methods are treated as read accesses.
+                        if (SymbolEqualityComparer.Default.Equals(attribute.AttributeClass, pureAttribute))
+                            return AccessPermissions.Read;
+                    }
+
+                    return AccessPermissions.Execute;
+                }
+
+                case IMemberReferenceOperation member:
+                {
+                    return DetermineAccess(context, member.Parent, operation);
+                }
+
+                default:
+                {
+                    return AccessPermissions.Read;
+                }
+            }
+        }
+
+        private bool InheritsFromOrEquals(INamedTypeSymbol type, INamedTypeSymbol baseType)
+        {
+            foreach (var otherType in GetBaseTypesAndThis(type))
+            {
+                if (SymbolEqualityComparer.Default.Equals(otherType, baseType))
+                    return true;
+            }
+
+            return false;
+        }
+
+        private IEnumerable<INamedTypeSymbol> GetBaseTypesAndThis(INamedTypeSymbol namedType)
+        {
+            var current = namedType;
+            while (current != null)
+            {
+                yield return current;
+                current = current.BaseType;
+            }
+        }
+    }
+}

Robust.Analyzers/Diagnostics.cs

@@ -0,0 +1,15 @@
+using Microsoft.CodeAnalysis;
+
+namespace Robust.Analyzers;
+
+public static class Diagnostics
+{
+    public const string IdExplicitInterface = "RA0000";
+    public const string IdSerializable = "RA0001";
+    public const string IdAccess = "RA0002";
+    public const string IdExplicitVirtual = "RA0003";
+    public const string IdTaskResult = "RA0004";
+
+    public static SuppressionDescriptor MeansImplicitAssignment =>
+        new SuppressionDescriptor("RADC1000", "CS0649", "Marked as implicitly assigned.");
+}

Robust.Analyzers/ExplicitInterfaceAnalyzer.cs

@@ -0,0 +1,92 @@
+using System.Collections.Generic;
+using System.Collections.Immutable;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CodeActions;
+using Microsoft.CodeAnalysis.CodeFixes;
+using Microsoft.CodeAnalysis.CSharp;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Microsoft.CodeAnalysis.Diagnostics;
+using Document = Microsoft.CodeAnalysis.Document;
+
+namespace Robust.Analyzers
+{
+    [DiagnosticAnalyzer(LanguageNames.CSharp)]
+    public class ExplicitInterfaceAnalyzer : DiagnosticAnalyzer
+    {
+        public readonly SyntaxKind[] ExcludedModifiers =
+        {
+            SyntaxKind.VirtualKeyword,
+            SyntaxKind.AbstractKeyword,
+            SyntaxKind.OverrideKeyword
+        };
+
+        [SuppressMessage("ReSharper", "RS2008")] private static readonly DiagnosticDescriptor Rule = new(
+            Diagnostics.IdExplicitInterface,
+            "No explicit interface specified",
+            "No explicit interface specified",
+            "Usage",
+            DiagnosticSeverity.Warning,
+            isEnabledByDefault: true,
+            description: "Make sure to specify the interface in your method-declaration.");
+
+        private const string RequiresExplicitImplementationAttributeMetadataName =
+            "Robust.Shared.Analyzers.RequiresExplicitImplementationAttribute";
+
+        public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics => ImmutableArray.Create(Rule);
+
+        public override void Initialize(AnalysisContext context)
+        {
+            context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.Analyze | GeneratedCodeAnalysisFlags.None);
+            context.EnableConcurrentExecution();
+            context.RegisterSyntaxNodeAction(AnalyzeNode, SyntaxKind.MethodDeclaration);
+            context.RegisterSyntaxNodeAction(AnalyzeNode, SyntaxKind.PropertyDeclaration);
+        }
+
+        private void AnalyzeNode(SyntaxNodeAnalysisContext context)
+        {
+            ISymbol symbol;
+            Location location;
+            switch (context.Node)
+            {
+                //we already have a explicit interface specified, no need to check further
+                case MethodDeclarationSyntax methodDecl when methodDecl.ExplicitInterfaceSpecifier != null || methodDecl.Modifiers.Any(m => ExcludedModifiers.Contains(m.Kind())):
+                    return;
+                case PropertyDeclarationSyntax propertyDecl when propertyDecl.ExplicitInterfaceSpecifier != null || propertyDecl.Modifiers.Any(m => ExcludedModifiers.Contains(m.Kind())):
+                    return;
+
+                case MethodDeclarationSyntax methodDecl:
+                    symbol = context.SemanticModel.GetDeclaredSymbol(methodDecl);
+                    location = methodDecl.Identifier.GetLocation();
+                    break;
+                case PropertyDeclarationSyntax propertyDecl:
+                    symbol = context.SemanticModel.GetDeclaredSymbol(propertyDecl);
+                    location = propertyDecl.Identifier.GetLocation();
+                    break;
+
+                default:
+                    return;
+            }
+
+            var attrSymbol = context.Compilation.GetTypeByMetadataName(RequiresExplicitImplementationAttributeMetadataName);
+
+            var isInterfaceMember = symbol?.ContainingType.AllInterfaces.Any(
+                i =>
+                    i.GetMembers().Any(m => SymbolEqualityComparer.Default.Equals(symbol, symbol.ContainingType.FindImplementationForInterfaceMember(m)))
+                    && i.GetAttributes().Any(a => SymbolEqualityComparer.Default.Equals(a.AttributeClass, attrSymbol))
+            ) ?? false;
+
+            if (isInterfaceMember)
+            {
+                //we do not have an explicit interface specified. bad!
+                var diagnostic = Diagnostic.Create(
+                    Rule,
+                    location);
+                context.ReportDiagnostic(diagnostic);
+            }
+        }
+    }
+}

Robust.Analyzers/ExplicitVirtualAnalyzer.cs

@@ -0,0 +1,176 @@
+using System.Collections.Immutable;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Microsoft.CodeAnalysis.Diagnostics;
+
+namespace Robust.Analyzers;
+
+[DiagnosticAnalyzer(LanguageNames.CSharp)]
+public sealed class ExplicitVirtualAnalyzer : DiagnosticAnalyzer
+{
+    internal const string Attribute = "Robust.Shared.Analyzers.VirtualAttribute";
+
+    [SuppressMessage("ReSharper", "RS2008")]
+    private static readonly DiagnosticDescriptor Rule = new(
+        Diagnostics.IdExplicitVirtual,
+        "Class must be explicitly marked as [Virtual], abstract, static or sealed",
+        "Class must be explicitly marked as [Virtual], abstract, static or sealed",
+        "Usage",
+        DiagnosticSeverity.Warning,
+        isEnabledByDefault: true,
+        description: "Class must be explicitly marked as [Virtual], abstract, static or sealed.");
+
+    public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics => ImmutableArray.Create(Rule);
+
+    public override void Initialize(AnalysisContext context)
+    {
+        context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.None);
+        context.EnableConcurrentExecution();
+        context.RegisterSyntaxNodeAction(AnalyzeNode, SyntaxKind.ClassDeclaration);
+    }
+
+    private static bool HasAttribute(INamedTypeSymbol namedTypeSymbol, INamedTypeSymbol attrSymbol)
+    {
+        return namedTypeSymbol.GetAttributes()
+            .Any(a => SymbolEqualityComparer.Default.Equals(a.AttributeClass, attrSymbol));
+    }
+
+    private static void AnalyzeNode(SyntaxNodeAnalysisContext context)
+    {
+        var attrSymbol = context.Compilation.GetTypeByMetadataName(Attribute);
+        var classDecl = (ClassDeclarationSyntax)context.Node;
+        var classSymbol = context.SemanticModel.GetDeclaredSymbol(classDecl);
+        if (classSymbol == null)
+            return;
+
+        if (classSymbol.IsSealed || classSymbol.IsAbstract || classSymbol.IsStatic)
+            return;
+
+        if (HasAttribute(classSymbol, attrSymbol))
+            return;
+
+        var diag = Diagnostic.Create(Rule, classDecl.Keyword.GetLocation());
+        context.ReportDiagnostic(diag);
+    }
+}
+
+// Doesn't work as I'd hoped: Roslyn doesn't provide an API for global usings and I can't get batch changes to work.
+/*
+[ExportCodeFixProvider(LanguageNames.CSharp)]
+public sealed class ExplicitVirtualCodeFixProvider : CodeFixProvider
+{
+    private const string TitleSealed = "Annotate class as sealed.";
+    private const string TitleVirtual = "Annotate class as [Virtual].";
+    private const string TitleAbstract = "Annotate class as abstract.";
+    private const string TitleStatic = "Annotate class as static.";
+
+    public override async Task RegisterCodeFixesAsync(CodeFixContext context)
+    {
+        var root = await context.Document.GetSyntaxRootAsync(context.CancellationToken);
+
+        foreach (var diagnostic in context.Diagnostics)
+        {
+            var span = diagnostic.Location.SourceSpan;
+            var classDecl = root.FindToken(span.Start).Parent.AncestorsAndSelf().OfType<ClassDeclarationSyntax>()
+                .First();
+
+            context.RegisterCodeFix(
+                CodeAction.Create(
+                    TitleVirtual,
+                    c => FixVirtualAsync(context.Document, classDecl, c),
+                    TitleVirtual),
+                diagnostic);
+
+            context.RegisterCodeFix(
+                CodeAction.Create(
+                    TitleStatic,
+                    c => FixStaticAsync(context.Document, classDecl, c),
+                    TitleStatic),
+                diagnostic);
+
+            context.RegisterCodeFix(
+                CodeAction.Create(
+                    TitleSealed,
+                    c => FixSealedAsync(context.Document, classDecl, c),
+                    TitleSealed),
+                diagnostic);
+
+            context.RegisterCodeFix(
+                CodeAction.Create(
+                    TitleAbstract,
+                    c => FixAbstractAsync(context.Document, classDecl, c),
+                    TitleAbstract),
+                diagnostic);
+        }
+    }
+
+    private async Task<Document> FixVirtualAsync(
+        Document document,
+        ClassDeclarationSyntax classDecl,
+        CancellationToken cancellationToken)
+    {
+        var ns = "Robust.Shared.Analyzers";
+        var attrib = SyntaxFactory.Attribute(SyntaxFactory.ParseName("Virtual"));
+
+        var newClassDecl = classDecl.AddAttributeLists(
+            SyntaxFactory.AttributeList(SyntaxFactory.SeparatedList(new[] { attrib })));
+
+        var root = (CompilationUnitSyntax)await document.GetSyntaxRootAsync(cancellationToken);
+        root = root.ReplaceNode(classDecl, newClassDecl);
+
+        var options = await document.GetOptionsAsync(cancellationToken);
+
+        if (root.Usings.All(u => u.Name.ToString() != ns))
+        {
+            root = root.AddUsings(SyntaxFactory.UsingDirective(SyntaxFactory.ParseName(ns)));
+        }
+
+        return document.WithSyntaxRoot(root);
+    }
+
+    private async Task<Document> FixStaticAsync(
+        Document document,
+        ClassDeclarationSyntax classDecl,
+        CancellationToken cancellationToken)
+    {
+        var newClassDecl = classDecl.AddModifiers(SyntaxFactory.Token(SyntaxKind.StaticKeyword));
+
+        var root = (CompilationUnitSyntax)await document.GetSyntaxRootAsync(cancellationToken);
+        root = root.ReplaceNode(classDecl, newClassDecl);
+
+        return document.WithSyntaxRoot(root);
+    }
+
+    private async Task<Document> FixAbstractAsync(
+        Document document,
+        ClassDeclarationSyntax classDecl,
+        CancellationToken cancellationToken)
+    {
+        var newClassDecl = classDecl.AddModifiers(SyntaxFactory.Token(SyntaxKind.AbstractKeyword));
+
+        var root = (CompilationUnitSyntax)await document.GetSyntaxRootAsync(cancellationToken);
+        root = root.ReplaceNode(classDecl, newClassDecl);
+
+        return document.WithSyntaxRoot(root);
+    }
+
+    private async Task<Document> FixSealedAsync(
+        Document document,
+        ClassDeclarationSyntax classDecl,
+        CancellationToken cancellationToken)
+    {
+        var newClassDecl = classDecl.AddModifiers(SyntaxFactory.Token(SyntaxKind.SealedKeyword));
+
+        var root = (CompilationUnitSyntax)await document.GetSyntaxRootAsync(cancellationToken);
+        root = root.ReplaceNode(classDecl, newClassDecl);
+
+        return document.WithSyntaxRoot(root);
+    }
+
+    public override FixAllProvider GetFixAllProvider() => WellKnownFixAllProviders.BatchFixer;
+    public override ImmutableArray<string> FixableDiagnosticIds => ImmutableArray.Create(Diagnostics.IdExplicitVirtual);
+}
+*/

Robust.Analyzers/MeansImplicitAssigmentSuppressor.cs

@@ -0,0 +1,40 @@
+using System.Collections.Immutable;
+using System.Linq;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.Diagnostics;
+
+namespace Robust.Analyzers
+{
+    [DiagnosticAnalyzer(LanguageNames.CSharp)]
+    public class MeansImplicitAssigmentSuppressor : DiagnosticSuppressor
+    {
+        const string MeansImplicitAssignmentAttribute = "Robust.Shared.MeansImplicitAssignmentAttribute";
+
+        public override void ReportSuppressions(SuppressionAnalysisContext context)
+        {
+            var implAttr = context.Compilation.GetTypeByMetadataName(MeansImplicitAssignmentAttribute);
+            foreach (var reportedDiagnostic in context.ReportedDiagnostics)
+            {
+                if(reportedDiagnostic.Id != Diagnostics.MeansImplicitAssignment.SuppressedDiagnosticId) continue;
+
+                var node = reportedDiagnostic.Location.SourceTree?.GetRoot(context.CancellationToken).FindNode(reportedDiagnostic.Location.SourceSpan);
+                if (node == null) continue;
+
+                var symbol = context.GetSemanticModel(reportedDiagnostic.Location.SourceTree).GetDeclaredSymbol(node);
+
+                if (symbol == null || !symbol.GetAttributes().Any(a =>
+                    a.AttributeClass?.GetAttributes().Any(attr =>
+                        SymbolEqualityComparer.Default.Equals(attr.AttributeClass, implAttr)) == true))
+                {
+                    continue;
+                }
+
+                context.ReportSuppression(Suppression.Create(
+                    Diagnostics.MeansImplicitAssignment,
+                    reportedDiagnostic));
+            }
+        }
+
+        public override ImmutableArray<SuppressionDescriptor> SupportedSuppressions => ImmutableArray.Create(Diagnostics.MeansImplicitAssignment);
+    }
+}

Robust.Analyzers/Robust.Analyzers.csproj

@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+    <LangVersion>10</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.0.1" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.3" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.Common" Version="4.0.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <!-- Needed for FriendAnalyzer. -->
+    <Compile Include="..\Robust.Shared\Analyzers\AccessAttribute.cs" />
+    <Compile Include="..\Robust.Shared\Analyzers\AccessPermissions.cs" />
+  </ItemGroup>
+
+</Project>

Robust.Analyzers/SerializableAnalyzer.cs

@@ -0,0 +1,153 @@
+using System.Collections.Generic;
+using System.Collections.Immutable;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CodeActions;
+using Microsoft.CodeAnalysis.CodeFixes;
+using Microsoft.CodeAnalysis.CSharp;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Microsoft.CodeAnalysis.Diagnostics;
+
+namespace Robust.Analyzers
+{
+    [DiagnosticAnalyzer(LanguageNames.CSharp)]
+    public class SerializableAnalyzer : DiagnosticAnalyzer
+    {
+        // Metadata of the analyzer
+
+        // You could use LocalizedString but it's a little more complicated for this sample
+
+        private const string RequiresSerializableAttributeMetadataName = "Robust.Shared.Analyzers.RequiresSerializableAttribute";
+        private const string SerializableAttributeMetadataName = "System.SerializableAttribute";
+        private const string NetSerializableAttributeMetadataName = "Robust.Shared.Serialization.NetSerializableAttribute";
+
+        [SuppressMessage("ReSharper", "RS2008")] private static readonly DiagnosticDescriptor Rule = new(
+            Diagnostics.IdSerializable,
+            "Class not marked as (Net)Serializable",
+            "Class not marked as (Net)Serializable",
+            "Usage",
+            DiagnosticSeverity.Warning,
+            isEnabledByDefault: true,
+            description: "The class should be marked as (Net)Serializable.");
+
+        public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics => ImmutableArray.Create(Rule);
+
+        public override void Initialize(AnalysisContext context)
+        {
+            context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.Analyze | GeneratedCodeAnalysisFlags.None);
+            context.EnableConcurrentExecution();
+            context.RegisterSyntaxNodeAction(AnalyzeNode, SyntaxKind.ClassDeclaration);
+        }
+
+        private bool Marked(INamedTypeSymbol namedTypeSymbol, INamedTypeSymbol attrSymbol)
+        {
+            if (namedTypeSymbol == null) return false;
+            if (namedTypeSymbol.GetAttributes()
+                .Any(a => SymbolEqualityComparer.Default.Equals(a.AttributeClass, attrSymbol))) return true;
+            return Marked(namedTypeSymbol.BaseType, attrSymbol);
+        }
+
+        private void AnalyzeNode(SyntaxNodeAnalysisContext context)
+        {
+            var attrSymbol = context.Compilation.GetTypeByMetadataName(RequiresSerializableAttributeMetadataName);
+            var classDecl = (ClassDeclarationSyntax) context.Node;
+            var classSymbol = context.SemanticModel.GetDeclaredSymbol(classDecl);
+            if (classSymbol == null) return;
+
+            if (Marked(classSymbol, attrSymbol))
+            {
+                var attributes = classSymbol.GetAttributes();
+                var serAttr = context.Compilation.GetTypeByMetadataName(SerializableAttributeMetadataName);
+                var netSerAttr = context.Compilation.GetTypeByMetadataName(NetSerializableAttributeMetadataName);
+
+                var hasSerAttr = attributes.Any(a => SymbolEqualityComparer.Default.Equals(a.AttributeClass, serAttr));
+                var hasNetSerAttr =
+                    attributes.Any(a => SymbolEqualityComparer.Default.Equals(a.AttributeClass, netSerAttr));
+
+                if (!hasSerAttr || !hasNetSerAttr)
+                {
+                    var requiredAttributes = new List<string>();
+                    if(!hasSerAttr) requiredAttributes.Add(SerializableAttributeMetadataName);
+                    if(!hasNetSerAttr) requiredAttributes.Add(NetSerializableAttributeMetadataName);
+
+                    context.ReportDiagnostic(
+                        Diagnostic.Create(
+                            Rule,
+                            classDecl.Identifier.GetLocation(),
+                            ImmutableDictionary.CreateRange(new Dictionary<string, string>()
+                            {
+                                {
+                                    "requiredAttributes", string.Join(",", requiredAttributes)
+                                }
+                            })));
+                }
+            }
+        }
+    }
+
+    [ExportCodeFixProvider(LanguageNames.CSharp)]
+    public class SerializableCodeFixProvider : CodeFixProvider
+    {
+        private const string Title = "Annotate class as (Net)Serializable.";
+
+        public override async Task RegisterCodeFixesAsync(CodeFixContext context)
+        {
+            var root = await context.Document.GetSyntaxRootAsync(context.CancellationToken);
+
+            foreach (var diagnostic in context.Diagnostics)
+            {
+                var span = diagnostic.Location.SourceSpan;
+                var classDecl = root.FindToken(span.Start).Parent.AncestorsAndSelf().OfType<ClassDeclarationSyntax>().First();
+
+                if(!diagnostic.Properties.TryGetValue("requiredAttributes", out var requiredAttributes)) return;
+
+                context.RegisterCodeFix(
+                    CodeAction.Create(
+                        Title,
+                        c => FixAsync(context.Document, classDecl, requiredAttributes, c),
+                        Title),
+                    diagnostic);
+            }
+        }
+
+        private async Task<Document> FixAsync(Document document, ClassDeclarationSyntax classDecl,
+            string requiredAttributes, CancellationToken cancellationToken)
+        {
+            var attributes = new List<AttributeSyntax>();
+            var namespaces = new List<string>();
+            foreach (var attribute in requiredAttributes.Split(','))
+            {
+                var tempSplit = attribute.Split('.');
+                namespaces.Add(string.Join(".",tempSplit.Take(tempSplit.Length-1)));
+                var @class = tempSplit.Last();
+                @class = @class.Substring(0, @class.Length - 9); //cut out "Attribute" at the end
+                attributes.Add(SyntaxFactory.Attribute(SyntaxFactory.ParseName(@class)));
+            }
+
+            var newClassDecl =
+                classDecl.AddAttributeLists(SyntaxFactory.AttributeList(SyntaxFactory.SeparatedList(attributes)));
+
+            var root = (CompilationUnitSyntax) await document.GetSyntaxRootAsync(cancellationToken);
+            root = root.ReplaceNode(classDecl, newClassDecl);
+
+            foreach (var ns in namespaces)
+            {
+                if(root.Usings.Any(u => u.Name.ToString() == ns)) continue;
+                root = root.AddUsings(SyntaxFactory.UsingDirective(SyntaxFactory.ParseName(ns)));
+            }
+            return document.WithSyntaxRoot(root);
+        }
+
+        public sealed override ImmutableArray<string> FixableDiagnosticIds
+            => ImmutableArray.Create(Diagnostics.IdSerializable);
+
+        public override FixAllProvider GetFixAllProvider()
+        {
+            return WellKnownFixAllProviders.BatchFixer;
+        }
+
+    }
+}

Robust.Analyzers/TaskResultAnalyzer.cs

@@ -0,0 +1,44 @@
+using System.Collections.Immutable;
+using System.Diagnostics.CodeAnalysis;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.Diagnostics;
+using Microsoft.CodeAnalysis.Operations;
+
+namespace Robust.Analyzers;
+
+[DiagnosticAnalyzer(LanguageNames.CSharp)]
+public sealed class TaskResultAnalyzer : DiagnosticAnalyzer
+{
+    [SuppressMessage("ReSharper", "RS2008")]
+    private static readonly DiagnosticDescriptor ResultRule = new DiagnosticDescriptor(
+        Diagnostics.IdTaskResult,
+        "Risk of deadlock from accessing Task<T>.Result",
+        "Accessing Task<T>.Result is dangerous and can cause deadlocks in some contexts. If you understand how this works and are certain that you aren't causing a deadlock here, mute this error with #pragma.",
+        "Usage",
+        DiagnosticSeverity.Error,
+        true);
+
+    public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics =>
+        ImmutableArray.Create(ResultRule);
+
+    public override void Initialize(AnalysisContext context)
+    {
+        context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.None);
+        context.EnableConcurrentExecution();
+        context.RegisterOperationAction(Check, OperationKind.PropertyReference);
+    }
+
+    private static void Check(OperationAnalysisContext context)
+    {
+        var taskType = context.Compilation.GetTypeByMetadataName("System.Threading.Tasks.Task`1");
+
+        var operation = (IPropertyReferenceOperation) context.Operation;
+        var member = operation.Member;
+
+        if (member.Name == "Result" && taskType.Equals(member.ContainingType.ConstructedFrom, SymbolEqualityComparer.Default))
+        {
+            var diag = Diagnostic.Create(ResultRule, operation.Syntax.GetLocation());
+            context.ReportDiagnostic(diag);
+        }
+    }
+}

Robust.Benchmarks/Configs/DefaultSQLConfig.cs

@@ -0,0 +1,53 @@
+using System.Collections.Generic;
+using System.Globalization;
+using BenchmarkDotNet.Analysers;
+using BenchmarkDotNet.Columns;
+using BenchmarkDotNet.Configs;
+using BenchmarkDotNet.Diagnosers;
+using BenchmarkDotNet.Exporters;
+using BenchmarkDotNet.Filters;
+using BenchmarkDotNet.Jobs;
+using BenchmarkDotNet.Loggers;
+using BenchmarkDotNet.Order;
+using BenchmarkDotNet.Reports;
+using BenchmarkDotNet.Validators;
+using Robust.Benchmarks.Exporters;
+
+namespace Robust.Benchmarks.Configs;
+
+public sealed class DefaultSQLConfig : IConfig
+{
+    public static readonly IConfig Instance = new DefaultSQLConfig();
+
+    private DefaultSQLConfig(){}
+
+    public IEnumerable<IExporter> GetExporters()
+    {
+        yield return SQLExporter.Default;
+    }
+
+    public IEnumerable<IColumnProvider> GetColumnProviders() => DefaultConfig.Instance.GetColumnProviders();
+
+    public IEnumerable<ILogger> GetLoggers() => DefaultConfig.Instance.GetLoggers();
+
+    public IEnumerable<IDiagnoser> GetDiagnosers() => DefaultConfig.Instance.GetDiagnosers();
+
+    public IEnumerable<IAnalyser> GetAnalysers() => DefaultConfig.Instance.GetAnalysers();
+
+    public IEnumerable<Job> GetJobs() => DefaultConfig.Instance.GetJobs();
+
+    public IEnumerable<IValidator> GetValidators() => DefaultConfig.Instance.GetValidators();
+
+    public IEnumerable<HardwareCounter> GetHardwareCounters() => DefaultConfig.Instance.GetHardwareCounters();
+
+    public IEnumerable<IFilter> GetFilters() => DefaultConfig.Instance.GetFilters();
+
+    public IEnumerable<BenchmarkLogicalGroupRule> GetLogicalGroupRules() => DefaultConfig.Instance.GetLogicalGroupRules();
+
+    public IOrderer Orderer => DefaultConfig.Instance.Orderer!;
+    public SummaryStyle SummaryStyle => DefaultConfig.Instance.SummaryStyle;
+    public ConfigUnionRule UnionRule => DefaultConfig.Instance.UnionRule;
+    public string ArtifactsPath => DefaultConfig.Instance.ArtifactsPath;
+    public CultureInfo CultureInfo => DefaultConfig.Instance.CultureInfo!;
+    public ConfigOptions Options => DefaultConfig.Instance.Options;
+}

Robust.Benchmarks/EntityManager/AddRemoveComponentBenchmark.cs

@@ -0,0 +1,54 @@
+using BenchmarkDotNet.Attributes;
+using JetBrains.Annotations;
+using Robust.Shared.Analyzers;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Map;
+using Robust.UnitTesting.Server;
+
+namespace Robust.Benchmarks.EntityManager;
+
+[Virtual]
+public class AddRemoveComponentBenchmark
+{
+    private ISimulation _simulation = default!;
+    private IEntityManager _entityManager = default!;
+
+    [UsedImplicitly]
+    [Params(1, 10, 100, 1000)]
+    public int N;
+
+    [GlobalSetup]
+    public void GlobalSetup()
+    {
+        _simulation = RobustServerSimulation
+            .NewSimulation()
+            .RegisterComponents(f => f.RegisterClass<A>())
+            .InitializeInstance();
+
+        _entityManager = _simulation.Resolve<IEntityManager>();
+
+        var coords = new MapCoordinates(0, 0, new MapId(1));
+        _simulation.AddMap(coords.MapId);
+
+        for (var i = 0; i < N; i++)
+        {
+            _entityManager.SpawnEntity(null, coords);
+        }
+    }
+
+    [Benchmark]
+    public void AddRemoveComponent()
+    {
+        for (var i = 2; i <= N+1; i++)
+        {
+            var uid = new EntityUid(i);
+            _entityManager.AddComponent<A>(uid);
+            _entityManager.RemoveComponent<A>(uid);
+        }
+    }
+
+    [ComponentProtoName("A")]
+    public sealed class A : Component
+    {
+    }
+}

Robust.Benchmarks/EntityManager/ComponentIndexBenchmark.cs

@@ -0,0 +1,225 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Threading;
+using BenchmarkDotNet.Attributes;
+using Robust.Shared.GameObjects;
+
+namespace Robust.Benchmarks.EntityManager;
+
+public class ComponentIndexBenchmark
+{
+    // Just a bunch of types to bloat the test lists.
+
+    private readonly CompIndexFetcher _compIndexFetcherDirect;
+    private readonly IFetcher _compIndexFetcher;
+    private readonly DictFetcher _dictFetcherDirect;
+    private readonly IFetcher _dictFetcher;
+
+
+    public ComponentIndexBenchmark()
+    {
+        _compIndexFetcherDirect = new CompIndexFetcher();
+        _compIndexFetcher = _compIndexFetcherDirect;
+        _dictFetcherDirect = new DictFetcher();
+        _dictFetcher = _dictFetcherDirect;
+    }
+
+    [GlobalSetup]
+    public void Setup()
+    {
+        var types = typeof(ComponentIndexBenchmark)
+            .GetNestedTypes(BindingFlags.NonPublic)
+            .Where(t => t.Name.StartsWith("TestType"))
+            .ToArray();
+
+        _compIndexFetcher.Init(types);
+        _dictFetcher.Init(types);
+    }
+
+    [Benchmark]
+    public int BenchCompIndex() => _compIndexFetcher.Get<TestType50>();
+
+    [Benchmark]
+    public int BenchDict() => _dictFetcher.Get<TestType50>();
+
+    [Benchmark]
+    public int BenchCompIndexDirect() => _compIndexFetcherDirect.Get<TestType50>();
+
+    [Benchmark]
+    public int BenchDictDirect() => _dictFetcherDirect.Get<TestType50>();
+
+    private static CompIdx ArrayIndexFor<T>() => CompArrayIndex<T>.Idx;
+
+    private static int _compIndexMaster = -1;
+
+    private static class CompArrayIndex<T>
+    {
+        // ReSharper disable once StaticMemberInGenericType
+        public static readonly CompIdx Idx = new(Interlocked.Increment(ref _compIndexMaster));
+    }
+
+    private static CompIdx GetCompIdIndex(Type type)
+    {
+        return (CompIdx)typeof(CompArrayIndex<>)
+            .MakeGenericType(type)
+            .GetField(nameof(CompArrayIndex<int>.Idx), BindingFlags.Static | BindingFlags.Public)!
+            .GetValue(null)!;
+    }
+
+    private interface IFetcher
+    {
+        void Init(Type[] types);
+
+        int Get<T>();
+    }
+
+    private sealed class CompIndexFetcher : IFetcher
+    {
+        private int[] _values = Array.Empty<int>();
+
+        public void Init(Type[] types)
+        {
+            var max = types.Max(t => GetCompIdIndex(t).Value);
+
+            _values = new int[max + 1];
+
+            var i = 0;
+            foreach (var type in types)
+            {
+                _values[GetCompIdIndex(type).Value] = i++;
+            }
+        }
+
+        public int Get<T>()
+        {
+            return _values[CompArrayIndex<T>.Idx.Value];
+        }
+    }
+
+    private sealed class DictFetcher : IFetcher
+    {
+        private readonly Dictionary<Type, int> _values = new();
+
+        public void Init(Type[] types)
+        {
+            var i = 0;
+            foreach (var type in types)
+            {
+                _values[type] = i++;
+            }
+        }
+
+        public int Get<T>()
+        {
+            return _values[typeof(T)];
+        }
+    }
+
+    // Just a bunch of types to pad the size of the arrays and such.
+
+    // @formatter:off
+    // ReSharper disable UnusedType.Local
+    private sealed class TestType1{}
+    private sealed class TestType2{}
+    private sealed class TestType3{}
+    private sealed class TestType4{}
+    private sealed class TestType5{}
+    private sealed class TestType6{}
+    private sealed class TestType7{}
+    private sealed class TestType8{}
+    private sealed class TestType9{}
+    private sealed class TestType10{}
+    private sealed class TestType11{}
+    private sealed class TestType12{}
+    private sealed class TestType13{}
+    private sealed class TestType14{}
+    private sealed class TestType15{}
+    private sealed class TestType16{}
+    private sealed class TestType17{}
+    private sealed class TestType18{}
+    private sealed class TestType19{}
+    private sealed class TestType20{}
+    private sealed class TestType21{}
+    private sealed class TestType22{}
+    private sealed class TestType23{}
+    private sealed class TestType24{}
+    private sealed class TestType25{}
+    private sealed class TestType26{}
+    private sealed class TestType27{}
+    private sealed class TestType28{}
+    private sealed class TestType29{}
+    private sealed class TestType30{}
+    private sealed class TestType31{}
+    private sealed class TestType32{}
+    private sealed class TestType33{}
+    private sealed class TestType34{}
+    private sealed class TestType35{}
+    private sealed class TestType36{}
+    private sealed class TestType37{}
+    private sealed class TestType38{}
+    private sealed class TestType39{}
+    private sealed class TestType40{}
+    private sealed class TestType41{}
+    private sealed class TestType42{}
+    private sealed class TestType43{}
+    private sealed class TestType44{}
+    private sealed class TestType45{}
+    private sealed class TestType46{}
+    private sealed class TestType47{}
+    private sealed class TestType48{}
+    private sealed class TestType49{}
+    private sealed class TestType50{}
+    private sealed class TestType51{}
+    private sealed class TestType52{}
+    private sealed class TestType53{}
+    private sealed class TestType54{}
+    private sealed class TestType55{}
+    private sealed class TestType56{}
+    private sealed class TestType57{}
+    private sealed class TestType58{}
+    private sealed class TestType59{}
+    private sealed class TestType60{}
+    private sealed class TestType61{}
+    private sealed class TestType62{}
+    private sealed class TestType63{}
+    private sealed class TestType64{}
+    private sealed class TestType65{}
+    private sealed class TestType66{}
+    private sealed class TestType67{}
+    private sealed class TestType68{}
+    private sealed class TestType69{}
+    private sealed class TestType70{}
+    private sealed class TestType71{}
+    private sealed class TestType72{}
+    private sealed class TestType73{}
+    private sealed class TestType74{}
+    private sealed class TestType75{}
+    private sealed class TestType76{}
+    private sealed class TestType77{}
+    private sealed class TestType78{}
+    private sealed class TestType79{}
+    private sealed class TestType80{}
+    private sealed class TestType81{}
+    private sealed class TestType82{}
+    private sealed class TestType83{}
+    private sealed class TestType84{}
+    private sealed class TestType85{}
+    private sealed class TestType86{}
+    private sealed class TestType87{}
+    private sealed class TestType88{}
+    private sealed class TestType89{}
+    private sealed class TestType90{}
+    private sealed class TestType91{}
+    private sealed class TestType92{}
+    private sealed class TestType93{}
+    private sealed class TestType94{}
+    private sealed class TestType95{}
+    private sealed class TestType96{}
+    private sealed class TestType97{}
+    private sealed class TestType98{}
+    private sealed class TestType99{}
+    // ReSharper restore UnusedType.Local
+    // @formatter:on
+}

Robust.Benchmarks/EntityManager/GetComponentBenchmark.cs

@@ -0,0 +1,61 @@
+using System;
+using BenchmarkDotNet.Attributes;
+using JetBrains.Annotations;
+using Robust.Shared.Analyzers;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Map;
+using Robust.UnitTesting.Server;
+
+namespace Robust.Benchmarks.EntityManager;
+
+[Virtual]
+public class GetComponentBenchmark
+{
+    private ISimulation _simulation = default!;
+    private IEntityManager _entityManager = default!;
+
+    [UsedImplicitly]
+    [Params(1, 10, 100, 1000)]
+    public int N;
+
+    public A[] Comps = default!;
+
+    [GlobalSetup]
+    public void GlobalSetup()
+    {
+        _simulation = RobustServerSimulation
+            .NewSimulation()
+            .RegisterComponents(f => f.RegisterClass<A>())
+            .InitializeInstance();
+
+        _entityManager = _simulation.Resolve<IEntityManager>();
+
+        Comps = new A[N+2];
+
+        var coords = new MapCoordinates(0, 0, new MapId(1));
+        _simulation.AddMap(coords.MapId);
+
+        for (var i = 0; i < N; i++)
+        {
+            var uid = _entityManager.SpawnEntity(null, coords);
+            _entityManager.AddComponent<A>(uid);
+        }
+    }
+
+    [Benchmark]
+    public A[] GetComponent()
+    {
+        for (var i = 2; i <= N+1; i++)
+        {
+            Comps[i] = _entityManager.GetComponent<A>(new EntityUid(i));
+        }
+
+        // Return something so the JIT doesn't optimize out all the GetComponent calls.
+        return Comps;
+    }
+
+    [ComponentProtoName("A")]
+    public sealed class A : Component
+    {
+    }
+}

Robust.Benchmarks/EntityManager/SpawnDeleteEntityBenchmark.cs

@@ -0,0 +1,62 @@
+using BenchmarkDotNet.Attributes;
+using JetBrains.Annotations;
+using Robust.Shared.Analyzers;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Map;
+using Robust.UnitTesting.Server;
+
+namespace Robust.Benchmarks.EntityManager;
+
+[Virtual]
+public class SpawnDeleteEntityBenchmark
+{
+    private ISimulation _simulation = default!;
+    private IEntityManager _entityManager = default!;
+
+    private MapCoordinates _mapCoords = MapCoordinates.Nullspace;
+    private EntityCoordinates _entCoords = EntityCoordinates.Invalid;
+
+    [UsedImplicitly]
+    [Params(1, 10, 100, 1000)]
+    public int N;
+
+    [GlobalSetup]
+    public void GlobalSetup()
+    {
+        _simulation = RobustServerSimulation
+            .NewSimulation()
+            .RegisterComponents(f => f.RegisterClass<A>())
+            .InitializeInstance();
+
+        _entityManager = _simulation.Resolve<IEntityManager>();
+
+        _mapCoords = new MapCoordinates(0, 0, new MapId(1));
+        var uid = _simulation.AddMap(_mapCoords.MapId);
+        _entCoords = new EntityCoordinates(uid, 0, 0);
+    }
+
+    [Benchmark(Baseline = true)]
+    public void SpawnDeleteEntityMapCoords()
+    {
+        for (var i = 0; i < N; i++)
+        {
+            var uid = _entityManager.SpawnEntity(null, _mapCoords);
+            _entityManager.DeleteEntity(uid);
+        }
+    }
+
+    [Benchmark]
+    public void SpawnDeleteEntityEntCoords()
+    {
+        for (var i = 0; i < N; i++)
+        {
+            var uid = _entityManager.SpawnEntity(null, _entCoords);
+            _entityManager.DeleteEntity(uid);
+        }
+    }
+
+    [ComponentProtoName("A")]
+    public sealed class A : Component
+    {
+    }
+}

Robust.Benchmarks/Exporters/SQLExporter.cs

@@ -0,0 +1,195 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using BenchmarkDotNet.Exporters;
+using BenchmarkDotNet.Loggers;
+using BenchmarkDotNet.Mathematics;
+using BenchmarkDotNet.Reports;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Design;
+using Npgsql;
+using Npgsql.Internal;
+using Npgsql.Internal.TypeHandlers;
+using Npgsql.Internal.TypeHandling;
+
+namespace Robust.Benchmarks.Exporters;
+
+public sealed class SQLExporter : IExporter
+{
+    public static readonly IExporter Default = new SQLExporter();
+
+    private SQLExporter(){}
+
+    public void ExportToLog(Summary summary, ILogger logger)
+    {
+        Export(summary, logger);
+    }
+
+    public IEnumerable<string> ExportToFiles(Summary summary, ILogger consoleLogger)
+    {
+        Export(summary, consoleLogger);
+        return Array.Empty<string>();
+    }
+
+    private bool TryGetEnvironmentVariable(string name, ILogger logger, [NotNullWhen(true)] out string? value)
+    {
+        value = Environment.GetEnvironmentVariable(name);
+        if (value == null)
+            logger.WriteError($"ROBUST_BENCHMARKS_ENABLE_SQL is set, but {name} is missing.");
+        return value != null;
+    }
+
+    private void Export(Summary summary, ILogger logger)
+    {
+        if (!TryGetEnvironmentVariable("ROBUST_BENCHMARKS_SQL_ADDRESS", logger, out var address) ||
+            !TryGetEnvironmentVariable("ROBUST_BENCHMARKS_SQL_PORT", logger, out var rawPort) ||
+            !TryGetEnvironmentVariable("ROBUST_BENCHMARKS_SQL_USER", logger, out var user) ||
+            !TryGetEnvironmentVariable("ROBUST_BENCHMARKS_SQL_PASSWORD", logger, out var password) ||
+            !TryGetEnvironmentVariable("ROBUST_BENCHMARKS_SQL_DATABASE", logger, out var db) ||
+            !TryGetEnvironmentVariable("GITHUB_SHA", logger, out var gitHash))
+            return;
+
+        if (!int.TryParse(rawPort, out var port))
+        {
+            logger.WriteError("Failed parsing ROBUST_BENCHMARKS_SQL_PORT to int.");
+            return;
+        }
+
+        var builder = new DbContextOptionsBuilder<BenchmarkContext>();
+        var connectionString = new NpgsqlConnectionStringBuilder
+        {
+            Host = address,
+            Port = port,
+            Database = db,
+            Username = user,
+            Password = password
+        }.ConnectionString;
+        builder.UseNpgsql(connectionString);
+        using var ctx = new BenchmarkContext(builder.Options);
+        try
+        {
+            ctx.Database.OpenConnection();
+            var con = (NpgsqlConnection) ctx.Database.GetDbConnection();
+            con.TypeMapper.AddTypeResolverFactory(new JsonOverrideTypeHandlerResolverFactory(new JsonSerializerOptions
+            {
+                NumberHandling = JsonNumberHandling.AllowNamedFloatingPointLiterals
+            }));
+
+            ctx.Database.Migrate();
+            ctx.BenchmarkRuns.Add(BenchmarkRun.FromSummary(summary, gitHash));
+            ctx.SaveChanges();
+        }
+        finally
+        {
+            ctx.Dispose();
+        }
+    }
+
+    public string Name => "sql";
+}
+
+// https://github.com/npgsql/efcore.pg/issues/1107#issuecomment-945126627
+class JsonOverrideTypeHandlerResolverFactory : TypeHandlerResolverFactory
+{
+    private readonly JsonSerializerOptions _options;
+
+    public JsonOverrideTypeHandlerResolverFactory(JsonSerializerOptions options)
+        => _options = options;
+
+    public override TypeHandlerResolver Create(NpgsqlConnector connector)
+        => new JsonOverrideTypeHandlerResolver(connector, _options);
+
+    public override string? GetDataTypeNameByClrType(Type clrType)
+        => null;
+
+    public override TypeMappingInfo? GetMappingByDataTypeName(string dataTypeName)
+        => null;
+
+    class JsonOverrideTypeHandlerResolver : TypeHandlerResolver
+    {
+        readonly JsonHandler _jsonbHandler;
+
+        internal JsonOverrideTypeHandlerResolver(NpgsqlConnector connector, JsonSerializerOptions options)
+            => _jsonbHandler ??= new JsonHandler(
+                connector.DatabaseInfo.GetPostgresTypeByName("jsonb"),
+                connector.TextEncoding,
+                isJsonb: true,
+                options);
+
+        public override NpgsqlTypeHandler? ResolveByDataTypeName(string typeName)
+            => typeName == "jsonb" ? _jsonbHandler : null;
+
+        public override NpgsqlTypeHandler? ResolveByClrType(Type type)
+            // You can add any user-defined CLR types which you want mapped to jsonb
+            => type == typeof(JsonDocument) ? _jsonbHandler : null;
+
+        public override TypeMappingInfo? GetMappingByDataTypeName(string dataTypeName)
+            => null; // Let the built-in resolver do this
+    }
+}
+public sealed class DesignTimeContextFactoryPostgres : IDesignTimeDbContextFactory<BenchmarkContext>
+{
+    public BenchmarkContext CreateDbContext(string[] args)
+    {
+        var optionsBuilder = new DbContextOptionsBuilder<BenchmarkContext>();
+        optionsBuilder.UseNpgsql("Server=localhost");
+        return new BenchmarkContext(optionsBuilder.Options);
+    }
+}
+
+public class BenchmarkContext : DbContext
+{
+    public DbSet<BenchmarkRun> BenchmarkRuns { get; set; } = default!;
+
+    public BenchmarkContext() { }
+    public BenchmarkContext(DbContextOptions<BenchmarkContext> options) : base(options) { }
+}
+
+public class BenchmarkRun
+{
+    public int Id { get; set; }
+    public string GitHash { get; set; } = string.Empty;
+
+    [Column(TypeName = "timestamptz")]
+    public DateTime RunDate { get; set; }
+
+    public string Name { get; set; } = string.Empty;
+
+    [Column(TypeName = "jsonb")]
+    public BenchmarkRunReport[] Reports { get; set; } = Array.Empty<BenchmarkRunReport>();
+
+    public static BenchmarkRun FromSummary(Summary summary, string gitHash)
+    {
+        return new BenchmarkRun
+        {
+            Reports = summary.Reports.Select(r => new BenchmarkRunReport
+            {
+                Parameters = r.BenchmarkCase.Parameters.Items.Select(p => new BenchmarkRunParameter
+                {
+                    Name = p.Name,
+                    Value = p.Value
+                }).ToArray(),
+                Statistics = r.ResultStatistics
+            }).ToArray(),
+            Name = summary.BenchmarksCases.First().FolderInfo,
+            RunDate = DateTime.UtcNow,
+            GitHash = gitHash
+        };
+    }
+}
+
+public class BenchmarkRunReport
+{
+    public BenchmarkRunParameter[] Parameters { get; set; } = Array.Empty<BenchmarkRunParameter>();
+    public Statistics Statistics { get; set; } = default!;
+}
+
+public class BenchmarkRunParameter
+{
+    public string Name { get; set; } = string.Empty;
+    public object Value { get; set; } = default!;
+}

Robust.Benchmarks/Migrations/20220328231938_InitialCreate.Designer.cs

@@ -0,0 +1,55 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using Robust.Benchmarks.Exporters;
+
+#nullable disable
+
+namespace Robust.Benchmarks.Migrations
+{
+    [DbContext(typeof(BenchmarkContext))]
+    [Migration("20220328231938_InitialCreate")]
+    partial class InitialCreate
+    {
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "6.0.0")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("Robust.Benchmarks.Exporters.BenchmarkRun", b =>
+                {
+                    b.Property<decimal>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("numeric(20,0)");
+
+                    b.Property<string>("GitHash")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<BenchmarkRunReport[]>("Reports")
+                        .IsRequired()
+                        .HasColumnType("jsonb");
+
+                    b.Property<DateTime>("RunDate")
+                        .HasColumnType("Date");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("BenchmarkRuns");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Robust.Benchmarks/Migrations/20220328231938_InitialCreate.cs

@@ -0,0 +1,35 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Robust.Benchmarks.Exporters;
+
+#nullable disable
+
+namespace Robust.Benchmarks.Migrations
+{
+    public partial class InitialCreate : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "BenchmarkRuns",
+                columns: table => new
+                {
+                    Id = table.Column<decimal>(type: "numeric(20,0)", nullable: false),
+                    GitHash = table.Column<string>(type: "text", nullable: false),
+                    RunDate = table.Column<DateTime>(type: "Date", nullable: false),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Reports = table.Column<BenchmarkRunReport[]>(type: "jsonb", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_BenchmarkRuns", x => x.Id);
+                });
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "BenchmarkRuns");
+        }
+    }
+}

Robust.Benchmarks/Migrations/20220510131430_fix-pk.Designer.cs

@@ -0,0 +1,57 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using Robust.Benchmarks.Exporters;
+
+#nullable disable
+
+namespace Robust.Benchmarks.Migrations
+{
+    [DbContext(typeof(BenchmarkContext))]
+    [Migration("20220510131430_fix-pk")]
+    partial class fixpk
+    {
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "6.0.0")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("Robust.Benchmarks.Exporters.BenchmarkRun", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("GitHash")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<BenchmarkRunReport[]>("Reports")
+                        .IsRequired()
+                        .HasColumnType("jsonb");
+
+                    b.Property<DateTime>("RunDate")
+                        .HasColumnType("timestamptz");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("BenchmarkRuns");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Robust.Benchmarks/Migrations/20220510131430_fix-pk.cs

@@ -0,0 +1,51 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Robust.Benchmarks.Migrations
+{
+    public partial class fixpk : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "RunDate",
+                table: "BenchmarkRuns",
+                type: "timestamptz",
+                nullable: false,
+                oldClrType: typeof(DateTime),
+                oldType: "Date");
+
+            migrationBuilder.AlterColumn<int>(
+                name: "Id",
+                table: "BenchmarkRuns",
+                type: "integer",
+                nullable: false,
+                oldClrType: typeof(decimal),
+                oldType: "numeric(20,0)")
+                .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn);
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "RunDate",
+                table: "BenchmarkRuns",
+                type: "Date",
+                nullable: false,
+                oldClrType: typeof(DateTime),
+                oldType: "timestamptz");
+
+            migrationBuilder.AlterColumn<decimal>(
+                name: "Id",
+                table: "BenchmarkRuns",
+                type: "numeric(20,0)",
+                nullable: false,
+                oldClrType: typeof(int),
+                oldType: "integer")
+                .OldAnnotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn);
+        }
+    }
+}

Robust.Benchmarks/Migrations/BenchmarkContextModelSnapshot.cs

@@ -0,0 +1,55 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using Robust.Benchmarks.Exporters;
+
+#nullable disable
+
+namespace Robust.Benchmarks.Migrations
+{
+    [DbContext(typeof(BenchmarkContext))]
+    partial class BenchmarkContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "6.0.0")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("Robust.Benchmarks.Exporters.BenchmarkRun", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("GitHash")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<BenchmarkRunReport[]>("Reports")
+                        .IsRequired()
+                        .HasColumnType("jsonb");
+
+                    b.Property<DateTime>("RunDate")
+                        .HasColumnType("timestamptz");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("BenchmarkRuns");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Robust.Benchmarks/NumericsHelpers/AddBenchmark.cs

@@ -0,0 +1,33 @@
+using BenchmarkDotNet.Attributes;
+using Robust.Shared.Analyzers;
+
+namespace Robust.Benchmarks.NumericsHelpers
+{
+    [Virtual]
+    public class AddBenchmark
+    {
+        [Params(32, 128)]
+        public int N { get; set; }
+
+        [Params(1,2)]
+        public int T { get; set; }
+
+        private float[] _inputA = default!;
+        private float[] _inputB = default!;
+        private float[] _output = default!;
+
+        [GlobalSetup]
+        public void Setup()
+        {
+            _inputA = new float[N];
+            _inputB = new float[N];
+            _output = new float[N];
+        }
+
+        [Benchmark]
+        public void Bench()
+        {
+            Shared.Maths.NumericsHelpers.Add(_inputA, _inputB, _output);
+        }
+    }
+}

Robust.Benchmarks/Program.cs

@@ -0,0 +1,26 @@
+using BenchmarkDotNet.Configs;
+using BenchmarkDotNet.Running;
+using System;
+using Robust.Benchmarks.Configs;
+using Robust.Benchmarks.Exporters;
+
+namespace Robust.Benchmarks
+{
+    internal static class Program
+    {
+        // --allCategories=ctg1,ctg2
+        // --anyCategories=ctg1,ctg2
+        public static void Main(string[] args)
+        {
+#if DEBUG
+            Console.ForegroundColor = ConsoleColor.Red;
+            Console.WriteLine("\nWARNING: YOU ARE RUNNING A DEBUG BUILD, USE A RELEASE BUILD FOR AN ACCURATE BENCHMARK");
+            Console.WriteLine("THE DEBUG BUILD IS ONLY GOOD FOR FIXING A CRASHING BENCHMARK\n");
+            BenchmarkSwitcher.FromAssembly(typeof(Program).Assembly).Run(args, new DebugInProcessConfig());
+#else
+            var config = Environment.GetEnvironmentVariable("ROBUST_BENCHMARKS_ENABLE_SQL") != null ? DefaultSQLConfig.Instance : null;
+            BenchmarkSwitcher.FromAssembly(typeof(Program).Assembly).Run(args, config);
+#endif
+        }
+    }
+}

Robust.Benchmarks/Robust.Benchmarks.csproj

@@ -0,0 +1,25 @@
+<Project Sdk="Microsoft.NET.Sdk">
+    <Import Project="..\MSBuild\Robust.Properties.targets" />
+    <Import Project="..\MSBuild\Robust.Engine.props" />
+    <PropertyGroup>
+        <IsPackable>false</IsPackable>
+        <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
+        <OutputPath>../bin/Benchmarks</OutputPath>
+        <OutputType>Exe</OutputType>
+        <NoWarn>RA0003</NoWarn>
+    </PropertyGroup>
+    <ItemGroup>
+      <ProjectReference Include="..\Robust.Server\Robust.Server.csproj" />
+      <ProjectReference Include="..\Robust.Shared\Robust.Shared.csproj" />
+      <ProjectReference Include="..\Robust.UnitTesting\Robust.UnitTesting.csproj" />
+    </ItemGroup>
+    <ItemGroup>
+      <PackageReference Include="BenchmarkDotNet" Version="0.12.1" />
+      <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="6.0.0">
+        <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        <PrivateAssets>all</PrivateAssets>
+      </PackageReference>
+      <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="6.0.4" />
+    </ItemGroup>
+    <Import Project="..\MSBuild\Robust.Engine.targets" />
+</Project>

Robust.Benchmarks/Serialization/BenchmarkIntSerializer.cs

@@ -0,0 +1,39 @@
+using System.Globalization;
+using Robust.Shared.IoC;
+using Robust.Shared.Serialization.Manager;
+using Robust.Shared.Serialization.Markdown;
+using Robust.Shared.Serialization.Markdown.Validation;
+using Robust.Shared.Serialization.Markdown.Value;
+using Robust.Shared.Serialization.TypeSerializers.Interfaces;
+
+namespace Robust.Benchmarks.Serialization
+{
+    public sealed class BenchmarkIntSerializer : ITypeSerializer<int, ValueDataNode>
+    {
+        public ValidationNode Validate(ISerializationManager serializationManager, ValueDataNode node,
+            IDependencyCollection dependencies, ISerializationContext? context = null)
+        {
+            return int.TryParse(node.Value, out _)
+                ? new ValidatedValueNode(node)
+                : new ErrorNode(node, $"Failed parsing int value: {node.Value}");
+        }
+
+        public int Read(ISerializationManager serializationManager, ValueDataNode node,
+            IDependencyCollection dependencies, bool skipHook, ISerializationContext? context = null, int _ = default)
+        {
+            return int.Parse(node.Value, CultureInfo.InvariantCulture);
+        }
+
+        public DataNode Write(ISerializationManager serializationManager, int value, bool alwaysWrite = false,
+            ISerializationContext? context = null)
+        {
+            return new ValueDataNode(value.ToString(CultureInfo.InvariantCulture));
+        }
+
+        public int Copy(ISerializationManager serializationManager, int source, int target, bool skipHook,
+            ISerializationContext? context = null)
+        {
+            return source;
+        }
+    }
+}

Robust.Benchmarks/Serialization/Copy/SerializationCopyBenchmark.cs

@@ -0,0 +1,153 @@
+using System.IO;
+using System.Linq;
+using BenchmarkDotNet.Attributes;
+using Robust.Benchmarks.Serialization.Definitions;
+using Robust.Shared.Analyzers;
+using Robust.Shared.Serialization.Manager;
+using Robust.Shared.Serialization.Markdown;
+using Robust.Shared.Serialization.Markdown.Mapping;
+using Robust.Shared.Serialization.Markdown.Sequence;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom;
+using Robust.Shared.Utility;
+using YamlDotNet.RepresentationModel;
+
+namespace Robust.Benchmarks.Serialization.Copy
+{
+    [MemoryDiagnoser]
+    [Virtual]
+    public class SerializationCopyBenchmark : SerializationBenchmark
+    {
+        public SerializationCopyBenchmark()
+        {
+            InitializeSerialization();
+
+            DataDefinitionWithString = new DataDefinitionWithString {StringField = "ABC"};
+
+            var yamlStream = new YamlStream();
+            yamlStream.Load(new StringReader(SeedDataDefinition.Prototype));
+
+            var seedMapping = yamlStream.Documents[0].RootNode.ToDataNodeCast<SequenceDataNode>().Cast<MappingDataNode>(0);
+
+            Seed = SerializationManager.Read<SeedDataDefinition>(seedMapping);
+        }
+
+        private const string String = "ABC";
+
+        private const int Integer = 1;
+
+        private DataDefinitionWithString DataDefinitionWithString { get; }
+
+        private SeedDataDefinition Seed { get; }
+
+        private BenchmarkFlagsEnum FlagZero = BenchmarkFlagsEnum.Zero;
+
+        private BenchmarkFlagsEnum FlagThirtyOne = BenchmarkFlagsEnum.ThirtyOne;
+
+        [Benchmark]
+        public string? CreateCopyString()
+        {
+            return SerializationManager.Copy(String);
+        }
+
+        [Benchmark]
+        public int? CreateCopyInteger()
+        {
+            return SerializationManager.Copy(Integer);
+        }
+
+        [Benchmark]
+        public DataDefinitionWithString? CreateCopyDataDefinitionWithString()
+        {
+            return SerializationManager.Copy(DataDefinitionWithString);
+        }
+
+        [Benchmark]
+        public SeedDataDefinition? CreateCopySeedDataDefinition()
+        {
+            return SerializationManager.Copy(Seed);
+        }
+
+        [Benchmark]
+        public SeedDataDefinition BaselineCreateCopySeedDataDefinition()
+        {
+            // ReSharper disable once UseObjectOrCollectionInitializer
+            var copy = new SeedDataDefinition();
+
+            copy.ID = Seed.ID;
+            copy.Name = Seed.Name;
+            copy.SeedName = Seed.SeedName;
+            copy.SeedNoun = Seed.SeedNoun;
+            copy.DisplayName = Seed.DisplayName;
+            copy.RoundStart = Seed.RoundStart;
+            copy.Mysterious = Seed.Mysterious;
+            copy.Immutable = Seed.Immutable;
+
+            copy.ProductPrototypes = Seed.ProductPrototypes.ToList();
+            copy.Chemicals = Seed.Chemicals.ToDictionary(p => p.Key, p => p.Value);
+            copy.ConsumeGasses = Seed.ConsumeGasses.ToDictionary(p => p.Key, p => p.Value);
+            copy.ExudeGasses = Seed.ExudeGasses.ToDictionary(p => p.Key, p => p.Value);
+
+            copy.NutrientConsumption = Seed.NutrientConsumption;
+            copy.WaterConsumption = Seed.WaterConsumption;
+            copy.IdealHeat = Seed.IdealHeat;
+            copy.HeatTolerance = Seed.HeatTolerance;
+            copy.IdealLight = Seed.IdealLight;
+            copy.LightTolerance = Seed.LightTolerance;
+            copy.ToxinsTolerance = Seed.ToxinsTolerance;
+            copy.LowPressureTolerance = Seed.LowPressureTolerance;
+            copy.HighPressureTolerance = Seed.HighPressureTolerance;
+            copy.PestTolerance = Seed.PestTolerance;
+            copy.WeedTolerance = Seed.WeedTolerance;
+
+            copy.Endurance = Seed.Endurance;
+            copy.Yield = Seed.Yield;
+            copy.Lifespan = Seed.Lifespan;
+            copy.Maturation = Seed.Maturation;
+            copy.Production = Seed.Production;
+            copy.GrowthStages = Seed.GrowthStages;
+            copy.HarvestRepeat = Seed.HarvestRepeat;
+            copy.Potency = Seed.Potency;
+            copy.Ligneous = Seed.Ligneous;
+
+            copy.PlantRsi = Seed.PlantRsi == null
+                ? null!
+                : new ResourcePath(Seed.PlantRsi.ToString(), Seed.PlantRsi.Separator);
+            copy.PlantIconState = Seed.PlantIconState;
+            copy.Bioluminescent = Seed.Bioluminescent;
+            copy.BioluminescentColor = Seed.BioluminescentColor;
+            copy.SplatPrototype = Seed.SplatPrototype;
+
+            return copy;
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("flag")]
+        public object? CopyFlagZero()
+        {
+            return SerializationManager.CopyWithTypeSerializer(
+                typeof(FlagSerializer<BenchmarkFlags>),
+                (int) FlagZero,
+                (int) FlagZero);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("flag")]
+        public object? CopyFlagThirtyOne()
+        {
+            return SerializationManager.CopyWithTypeSerializer(
+                typeof(FlagSerializer<BenchmarkFlags>),
+                (int) FlagThirtyOne,
+                (int) FlagThirtyOne);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("customTypeSerializer")]
+        public object? CopyIntegerCustomSerializer()
+        {
+            return SerializationManager.CopyWithTypeSerializer(
+                typeof(BenchmarkIntSerializer),
+                Integer,
+                Integer);
+        }
+    }
+}

Robust.Benchmarks/Serialization/Definitions/BenchmarkFlags.cs

@@ -0,0 +1,19 @@
+using System;
+using Robust.Shared.Serialization;
+
+namespace Robust.Benchmarks.Serialization.Definitions
+{
+    public sealed class BenchmarkFlags
+    {
+        public const int Zero = 1 << 0;
+        public const int ThirtyOne = 1 << 31;
+    }
+
+    [Flags]
+    [FlagsFor(typeof(BenchmarkFlags))]
+    public enum BenchmarkFlagsEnum
+    {
+        Zero = BenchmarkFlags.Zero,
+        ThirtyOne = BenchmarkFlags.ThirtyOne
+    }
+}

Robust.Benchmarks/Serialization/Definitions/DataDefinitionWithString.cs

@@ -0,0 +1,13 @@
+using Robust.Shared.Analyzers;
+using Robust.Shared.Serialization.Manager.Attributes;
+
+namespace Robust.Benchmarks.Serialization.Definitions
+{
+    [DataDefinition]
+    [Virtual]
+    public class DataDefinitionWithString
+    {
+        [DataField("string")]
+        public string StringField { get; init; } = default!;
+    }
+}

Robust.Benchmarks/Serialization/Definitions/SealedDataDefinitionWithString.cs

@@ -0,0 +1,11 @@
+using Robust.Shared.Serialization.Manager.Attributes;
+
+namespace Robust.Benchmarks.Serialization.Definitions
+{
+    [DataDefinition]
+    public sealed class SealedDataDefinitionWithString
+    {
+        [DataField("string")]
+        public string StringField { get; init; } = default!;
+    }
+}

Robust.Benchmarks/Serialization/Definitions/SeedDataDefinition.cs

@@ -0,0 +1,120 @@
+using System.Collections.Generic;
+using Robust.Shared.Maths;
+using Robust.Shared.Prototypes;
+using Robust.Shared.Serialization.Manager.Attributes;
+using Robust.Shared.Utility;
+
+namespace Robust.Benchmarks.Serialization.Definitions
+{
+    /// <summary>
+    ///     Arbitrarily large data definition for benchmarks.
+    ///     Taken from content.
+    /// </summary>
+    [Prototype("seed")]
+    public sealed class SeedDataDefinition : IPrototype
+    {
+        public const string Prototype = @"
+- type: seed
+  id: tobacco
+  name: tobacco
+  seedName: tobacco
+  displayName: tobacco plant
+  plantRsi: Objects/Specific/Hydroponics/tobacco.rsi
+  productPrototypes:
+    - LeavesTobacco
+  harvestRepeat: Repeat
+  lifespan: 75
+  maturation: 5
+  production: 5
+  yield: 2
+  potency: 20
+  growthStages: 3
+  idealLight: 9
+  idealHeat: 298
+  chemicals:
+    chem.Nicotine:
+      Min: 1
+      Max: 10
+      PotencyDivisor: 10";
+
+        [IdDataFieldAttribute] public string ID { get; set; } = default!;
+
+        #region Tracking
+        [DataField("name")] public string Name { get; set; } = string.Empty;
+        [DataField("seedName")] public string SeedName { get; set; } = string.Empty;
+        [DataField("seedNoun")] public string SeedNoun { get; set; } = "seeds";
+        [DataField("displayName")] public string DisplayName { get; set; } = string.Empty;
+        [DataField("roundStart")] public bool RoundStart { get; set; } = true;
+        [DataField("mysterious")] public bool Mysterious { get; set; }
+        [DataField("immutable")] public bool Immutable { get; set; }
+        #endregion
+
+        #region Output
+        [DataField("productPrototypes")]
+        public List<string> ProductPrototypes { get; set; } = new();
+        [DataField("chemicals")]
+        public Dictionary<string, SeedChemQuantity> Chemicals { get; set; } = new();
+        [DataField("consumeGasses")]
+        public Dictionary<Gas, float> ConsumeGasses { get; set; } = new();
+        [DataField("exudeGasses")]
+        public Dictionary<Gas, float> ExudeGasses { get; set; } = new();
+        #endregion
+
+        #region Tolerances
+        [DataField("nutrientConsumption")] public float NutrientConsumption { get; set; } = 0.25f;
+        [DataField("waterConsumption")] public float WaterConsumption { get; set; } = 3f;
+        [DataField("idealHeat")] public float IdealHeat { get; set; } = 293f;
+        [DataField("heatTolerance")] public float HeatTolerance { get; set; } = 20f;
+        [DataField("idealLight")] public float IdealLight { get; set; } = 7f;
+        [DataField("lightTolerance")] public float LightTolerance { get; set; } = 5f;
+        [DataField("toxinsTolerance")] public float ToxinsTolerance { get; set; } = 4f;
+        [DataField("lowPressureTolerance")] public float LowPressureTolerance { get; set; } = 25f;
+        [DataField("highPressureTolerance")] public float HighPressureTolerance { get; set; } = 200f;
+        [DataField("pestTolerance")] public float PestTolerance { get; set; } = 5f;
+        [DataField("weedTolerance")] public float WeedTolerance { get; set; } = 5f;
+        #endregion
+
+        #region General traits
+        [DataField("endurance")] public float Endurance { get; set; } = 100f;
+        [DataField("yield")] public int Yield { get; set; }
+        [DataField("lifespan")] public float Lifespan { get; set; }
+        [DataField("maturation")] public float Maturation { get; set; }
+        [DataField("production")] public float Production { get; set; }
+        [DataField("growthStages")] public int GrowthStages { get; set; } = 6;
+        [DataField("harvestRepeat")] public HarvestType HarvestRepeat { get; set; } = HarvestType.NoRepeat;
+        [DataField("potency")] public float Potency { get; set; } = 1f;
+        [DataField("ligneous")] public bool Ligneous { get; set; }
+        #endregion
+
+        #region Cosmetics
+        [DataField("plantRsi", required: true)] public ResourcePath PlantRsi { get; set; } = default!;
+        [DataField("plantIconState")] public string PlantIconState { get; set; } = "produce";
+        [DataField("bioluminescent")] public bool Bioluminescent { get; set; }
+        [DataField("bioluminescentColor")] public Color BioluminescentColor { get; set; } = Color.White;
+        [DataField("splatPrototype")] public string? SplatPrototype { get; set; }
+        #endregion
+    }
+
+    public enum HarvestType
+    {
+        NoRepeat,
+        Repeat
+    }
+
+    public enum Gas
+    {
+    }
+
+    [DataDefinition]
+    public struct SeedChemQuantity
+    {
+        [DataField("Min")]
+        public int Min;
+
+        [DataField("Max")]
+        public int Max;
+
+        [DataField("PotencyDivisor")]
+        public int PotencyDivisor;
+    }
+}

Robust.Benchmarks/Serialization/Initialize/SerializationInitializeBenchmark.cs

@@ -0,0 +1,24 @@
+using BenchmarkDotNet.Attributes;
+using Robust.Shared.Analyzers;
+using Robust.Shared.Serialization.Manager;
+
+namespace Robust.Benchmarks.Serialization.Initialize
+{
+    [MemoryDiagnoser]
+    [Virtual]
+    public class SerializationInitializeBenchmark : SerializationBenchmark
+    {
+        [IterationCleanup]
+        public void IterationCleanup()
+        {
+            SerializationManager.Shutdown();
+        }
+
+        [Benchmark]
+        public ISerializationManager Initialize()
+        {
+            InitializeSerialization();
+            return SerializationManager;
+        }
+    }
+}

Robust.Benchmarks/Serialization/Read/SerializationReadBenchmark.cs

@@ -0,0 +1,97 @@
+using System.IO;
+using BenchmarkDotNet.Attributes;
+using Robust.Benchmarks.Serialization.Definitions;
+using Robust.Shared.Analyzers;
+using Robust.Shared.Serialization.Markdown;
+using Robust.Shared.Serialization.Markdown.Mapping;
+using Robust.Shared.Serialization.Markdown.Sequence;
+using Robust.Shared.Serialization.Markdown.Value;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom;
+using YamlDotNet.RepresentationModel;
+
+namespace Robust.Benchmarks.Serialization.Read
+{
+    [MemoryDiagnoser]
+    [Virtual]
+    public class SerializationReadBenchmark : SerializationBenchmark
+    {
+        public SerializationReadBenchmark()
+        {
+            InitializeSerialization();
+
+            StringDataDefNode = new MappingDataNode();
+            StringDataDefNode.Add(new ValueDataNode("string"), new ValueDataNode("ABC"));
+
+            var yamlStream = new YamlStream();
+            yamlStream.Load(new StringReader(SeedDataDefinition.Prototype));
+
+            SeedNode = yamlStream.Documents[0].RootNode.ToDataNodeCast<SequenceDataNode>().Cast<MappingDataNode>(0);
+        }
+
+        private ValueDataNode StringNode { get; } = new("ABC");
+
+        private ValueDataNode IntNode { get; } = new("1");
+
+        private MappingDataNode StringDataDefNode { get; }
+
+        private MappingDataNode SeedNode { get; }
+
+        private ValueDataNode FlagZero { get; } = new("Zero");
+
+        private ValueDataNode FlagThirtyOne { get; } = new("ThirtyOne");
+
+        [Benchmark]
+        public string ReadString()
+        {
+            return SerializationManager.Read<string>(StringNode);
+        }
+
+        [Benchmark]
+        public int ReadInteger()
+        {
+            return SerializationManager.Read<int>(IntNode);
+        }
+
+        [Benchmark]
+        public DataDefinitionWithString ReadDataDefinitionWithString()
+        {
+            return SerializationManager.Read<DataDefinitionWithString>(StringDataDefNode);
+        }
+
+        [Benchmark]
+        public SeedDataDefinition ReadSeedDataDefinition()
+        {
+            return SerializationManager.Read<SeedDataDefinition>(SeedNode);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("flag")]
+        public object? ReadFlagZero()
+        {
+            return SerializationManager.ReadWithTypeSerializer(
+                typeof(int),
+                typeof(FlagSerializer<BenchmarkFlags>),
+                FlagZero);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("flag")]
+        public object? ReadThirtyOne()
+        {
+            return SerializationManager.ReadWithTypeSerializer(
+                typeof(int),
+                typeof(FlagSerializer<BenchmarkFlags>),
+                FlagThirtyOne);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("customTypeSerializer")]
+        public object? ReadIntegerCustomSerializer()
+        {
+            return SerializationManager.ReadWithTypeSerializer(
+                typeof(int),
+                typeof(BenchmarkIntSerializer),
+                IntNode);
+        }
+    }
+}

Robust.Benchmarks/Serialization/SerializationArrayBenchmark.cs

@@ -0,0 +1,129 @@
+using BenchmarkDotNet.Attributes;
+using Robust.Benchmarks.Serialization.Definitions;
+using Robust.Shared.Analyzers;
+using Robust.Shared.Serialization.Markdown.Mapping;
+using Robust.Shared.Serialization.Markdown.Sequence;
+using Robust.Shared.Serialization.Markdown.Value;
+
+namespace Robust.Benchmarks.Serialization
+{
+    [MemoryDiagnoser]
+    [Virtual]
+    public class SerializationArrayBenchmark : SerializationBenchmark
+    {
+        public SerializationArrayBenchmark()
+        {
+            InitializeSerialization();
+
+            OneStringDefNode = new SequenceDataNode();
+            OneStringDefNode.Add(new MappingDataNode
+            {
+                ["string"] = new ValueDataNode("ABC")
+            });
+
+            TenStringDefsNode = new SequenceDataNode();
+
+            for (var i = 0; i < 10; i++)
+            {
+                TenStringDefsNode.Add(new MappingDataNode
+                {
+                    ["string"] = new ValueDataNode("ABC")
+                });
+            }
+        }
+
+        private SequenceDataNode EmptyNode { get; } = new();
+
+        private SequenceDataNode OneIntNode { get; } = new("1");
+
+        private SequenceDataNode TenIntsNode { get; } = new("1", "2", "3", "4", "5", "6", "7", "8", "9", "10");
+
+        private SequenceDataNode OneStringDefNode { get; }
+
+        private SequenceDataNode TenStringDefsNode { get; }
+
+        [Benchmark]
+        [BenchmarkCategory("read")]
+        public string[]? ReadEmptyString()
+        {
+            return SerializationManager.Read<string[]>(EmptyNode);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("read")]
+        public string[]? ReadOneString()
+        {
+            return SerializationManager.Read<string[]>(OneIntNode);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("read")]
+        public string[]? ReadTenStrings()
+        {
+            return SerializationManager.Read<string[]>(TenIntsNode);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("read")]
+        public int[]? ReadEmptyInt()
+        {
+            return SerializationManager.Read<int[]>(EmptyNode);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("read")]
+        public int[]? ReadOneInt()
+        {
+            return SerializationManager.Read<int[]>(OneIntNode);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("read")]
+        public int[]? ReadTenInts()
+        {
+            return SerializationManager.Read<int[]>(TenIntsNode);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("read")]
+        public DataDefinitionWithString[]? ReadEmptyStringDataDef()
+        {
+            return SerializationManager.Read<DataDefinitionWithString[]>(EmptyNode);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("read")]
+        public DataDefinitionWithString[]? ReadOneStringDataDef()
+        {
+            return SerializationManager.Read<DataDefinitionWithString[]>(OneStringDefNode);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("read")]
+        public DataDefinitionWithString[]? ReadTenStringDataDefs()
+        {
+            return SerializationManager.Read<DataDefinitionWithString[]>(TenStringDefsNode);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("read")]
+        public SealedDataDefinitionWithString[]? ReadEmptySealedStringDataDef()
+        {
+            return SerializationManager.Read<SealedDataDefinitionWithString[]>(EmptyNode);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("read")]
+        public SealedDataDefinitionWithString[]? ReadOneSealedStringDataDef()
+        {
+            return SerializationManager.Read<SealedDataDefinitionWithString[]>(OneStringDefNode);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("read")]
+        public SealedDataDefinitionWithString[]? ReadTenSealedStringDataDefs()
+        {
+            return SerializationManager.Read<SealedDataDefinitionWithString[]>(TenStringDefsNode);
+        }
+    }
+}

Robust.Benchmarks/Serialization/SerializationBenchmark.cs

@@ -0,0 +1,43 @@
+using System;
+using Robust.Server;
+using Robust.Shared.Configuration;
+using Robust.Shared.ContentPack;
+using Robust.Shared.IoC;
+using Robust.Shared.Reflection;
+using Robust.Shared.Serialization.Manager;
+
+namespace Robust.Benchmarks.Serialization
+{
+    public abstract class SerializationBenchmark
+    {
+        public SerializationBenchmark()
+        {
+            IoCManager.InitThread();
+            ServerIoC.RegisterIoC();
+            IoCManager.BuildGraph();
+
+            var assemblies = new[]
+            {
+                AppDomain.CurrentDomain.GetAssemblyByName("Robust.Shared"),
+                AppDomain.CurrentDomain.GetAssemblyByName("Robust.Server"),
+                AppDomain.CurrentDomain.GetAssemblyByName("Robust.Benchmarks")
+            };
+
+            foreach (var assembly in assemblies)
+            {
+                IoCManager.Resolve<IConfigurationManagerInternal>().LoadCVarsFromAssembly(assembly);
+            }
+
+            IoCManager.Resolve<IReflectionManager>().LoadAssemblies(assemblies);
+
+            SerializationManager = IoCManager.Resolve<ISerializationManager>();
+        }
+
+        protected ISerializationManager SerializationManager { get; }
+
+        public void InitializeSerialization()
+        {
+            SerializationManager.Initialize();
+        }
+    }
+}

Robust.Benchmarks/Serialization/Write/SerializationWriteBenchmark.cs

@@ -0,0 +1,136 @@
+using System.Globalization;
+using System.IO;
+using BenchmarkDotNet.Attributes;
+using Robust.Benchmarks.Serialization.Definitions;
+using Robust.Shared.Analyzers;
+using Robust.Shared.Serialization.Manager;
+using Robust.Shared.Serialization.Markdown;
+using Robust.Shared.Serialization.Markdown.Mapping;
+using Robust.Shared.Serialization.Markdown.Sequence;
+using Robust.Shared.Serialization.Markdown.Value;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom;
+using YamlDotNet.RepresentationModel;
+
+namespace Robust.Benchmarks.Serialization.Write
+{
+    [MemoryDiagnoser]
+    [Virtual]
+    public class SerializationWriteBenchmark : SerializationBenchmark
+    {
+        public SerializationWriteBenchmark()
+        {
+            InitializeSerialization();
+
+            DataDefinitionWithString = new DataDefinitionWithString {StringField = "ABC"};
+
+            var yamlStream = new YamlStream();
+            yamlStream.Load(new StringReader(SeedDataDefinition.Prototype));
+
+            var seedMapping = yamlStream.Documents[0].RootNode.ToDataNodeCast<SequenceDataNode>().Cast<MappingDataNode>(0);
+
+            Seed = SerializationManager.Read<SeedDataDefinition>(seedMapping);
+        }
+
+        private const string String = "ABC";
+
+        private const int Integer = 1;
+
+        private DataDefinitionWithString DataDefinitionWithString { get; }
+
+        private SeedDataDefinition Seed { get; }
+
+        private BenchmarkFlagsEnum FlagZero = BenchmarkFlagsEnum.Zero;
+
+        private BenchmarkFlagsEnum FlagThirtyOne = BenchmarkFlagsEnum.ThirtyOne;
+
+        [Benchmark]
+        public DataNode WriteString()
+        {
+            return SerializationManager.WriteValue(String);
+        }
+
+        [Benchmark]
+        public DataNode WriteInteger()
+        {
+            return SerializationManager.WriteValue(Integer);
+        }
+
+        [Benchmark]
+        public DataNode WriteDataDefinitionWithString()
+        {
+            return SerializationManager.WriteValue(DataDefinitionWithString);
+        }
+
+        [Benchmark]
+        public DataNode WriteSeedDataDefinition()
+        {
+            return SerializationManager.WriteValue(Seed);
+        }
+
+        [Benchmark]
+        public DataNode BaselineWriteSeedDataDefinition()
+        {
+            var mapping = new MappingDataNode();
+
+            mapping.Add("id", Seed.ID);
+            mapping.Add("name", Seed.Name);
+            mapping.Add("seedName", Seed.SeedName);
+            mapping.Add("displayName", Seed.DisplayName);
+            mapping.Add("productPrototypes", Seed.ProductPrototypes);
+            mapping.Add("harvestRepeat", Seed.HarvestRepeat.ToString());
+            mapping.Add("lifespan", Seed.Lifespan.ToString(CultureInfo.InvariantCulture));
+            mapping.Add("maturation", Seed.Maturation.ToString(CultureInfo.InvariantCulture));
+            mapping.Add("production", Seed.Production.ToString(CultureInfo.InvariantCulture));
+            mapping.Add("yield", Seed.Yield.ToString(CultureInfo.InvariantCulture));
+            mapping.Add("potency", Seed.Potency.ToString(CultureInfo.InvariantCulture));
+            mapping.Add("growthStages", Seed.GrowthStages.ToString(CultureInfo.InvariantCulture));
+            mapping.Add("idealLight", Seed.IdealLight.ToString(CultureInfo.InvariantCulture));
+            mapping.Add("idealHeat", Seed.IdealHeat.ToString(CultureInfo.InvariantCulture));
+
+            var chemicals = new MappingDataNode();
+            foreach (var (name, quantity) in Seed.Chemicals)
+            {
+                chemicals.Add(name, new MappingDataNode
+                {
+                    ["Min"] = new ValueDataNode(quantity.Min.ToString(CultureInfo.InvariantCulture)),
+                    ["Max"] = new ValueDataNode(quantity.Max.ToString(CultureInfo.InvariantCulture)),
+                    ["PotencyDivisor"] = new ValueDataNode(quantity.PotencyDivisor.ToString(CultureInfo.InvariantCulture))
+                });
+            }
+
+            mapping.Add("chemicals", chemicals);
+
+            return mapping;
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("flag")]
+        public DataNode WriteFlagZero()
+        {
+            return SerializationManager.WriteWithTypeSerializer(
+                typeof(int),
+                typeof(FlagSerializer<BenchmarkFlags>),
+                FlagZero);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("flag")]
+        public DataNode WriteThirtyOne()
+        {
+            return SerializationManager.WriteWithTypeSerializer(
+                typeof(int),
+                typeof(FlagSerializer<BenchmarkFlags>),
+                FlagThirtyOne);
+        }
+
+        [Benchmark]
+        [BenchmarkCategory("customTypeSerializer")]
+        public DataNode WriteIntegerCustomSerializer()
+        {
+            return SerializationManager.WriteWithTypeSerializer(
+                typeof(int),
+                typeof(BenchmarkIntSerializer),
+                Integer);
+        }
+    }
+}