Version: 211.0.2

From moony my git patch didn't apply so done manually

.editorconfig

@@ -10,5 +10,8 @@ charset = utf-8
 [*.{csproj,xml,yml,dll.config,targets,props}]
 indent_size = 2
 
+[nuget.config]
+indent_size = 2
+
 [*.gdsl]
 indent_style = tab

Directory.Packages.props

@@ -0,0 +1,64 @@
+<Project>
+  <ItemGroup>
+    <PackageVersion Include="BenchmarkDotNet" Version="0.13.12" />
+    <PackageVersion Include="DiscordRichPresence" Version="1.2.1.24" />
+    <PackageVersion Include="ILReader.Core" Version="1.0.0.4" />
+    <PackageVersion Include="JetBrains.Annotations" Version="2023.3.0" />
+    <PackageVersion Include="JetBrains.Profiler.Api" Version="1.4.0" />
+    <PackageVersion Include="Linguini.Bundle" Version="0.1.3" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.Analyzer.Testing" Version="1.1.1"/>
+    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.Analyzer.Testing.NUnit" Version="1.1.1"/>
+    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.8.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.Features" Version="4.8.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.Scripting" Version="4.8.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.8.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.Common" Version="4.8.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.Workspaces.Common" Version="4.8.0" />
+    <PackageVersion Include="Microsoft.CodeCoverage" Version="17.8.0" />
+    <PackageVersion Include="Microsoft.Data.Sqlite.Core" Version="8.0.0" />
+    <PackageVersion Include="Microsoft.DotNet.RemoteExecutor" Version="8.0.0-beta.24059.4" />
+    <PackageVersion Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.0" />
+    <PackageVersion Include="Microsoft.Extensions.Logging" Version="8.0.0" />
+    <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />
+    <PackageVersion Include="Microsoft.Extensions.ObjectPool" Version="8.0.0" />
+    <PackageVersion Include="Microsoft.Extensions.Primitives" Version="8.0.0" />
+    <PackageVersion Include="Microsoft.ILVerification" Version="8.0.0" />
+    <PackageVersion Include="Microsoft.IO.RecyclableMemoryStream" Version="3.0.0" />
+    <PackageVersion Include="Microsoft.NET.ILLink.Tasks" Version="8.0.0" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageVersion Include="Microsoft.Win32.Registry" Version="5.0.0" />
+    <PackageVersion Include="Moq" Version="4.20.70" />
+    <PackageVersion Include="NUnit" Version="4.0.1" />
+    <PackageVersion Include="NUnit.Analyzers" Version="3.10.0" />
+    <PackageVersion Include="NUnit3TestAdapter" Version="4.5.0" />
+    <PackageVersion Include="Nett" Version="0.15.0" />
+    <PackageVersion Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="6.0.4" />
+    <PackageVersion Include="OpenTK.OpenAL" Version="4.7.7" />
+    <PackageVersion Include="OpenToolkit.Graphics" Version="4.0.0-pre9.1" />
+    <PackageVersion Include="Pidgin" Version="3.2.2" />
+    <PackageVersion Include="Robust.Natives" Version="0.1.1" />
+    <PackageVersion Include="Robust.Natives.Cef" Version="120.1.9" />
+    <PackageVersion Include="Robust.Shared.AuthLib" Version="0.1.2" />
+    <PackageVersion Include="SQLitePCLRaw.bundle_e_sqlite3" Version="2.1.7" />
+    <PackageVersion Include="SQLitePCLRaw.provider.sqlite3" Version="2.1.7" />
+    <PackageVersion Include="Serilog" Version="3.1.1" />
+    <PackageVersion Include="Serilog.Sinks.Loki" Version="4.0.0-beta3" />
+    <PackageVersion Include="SharpZstd.Interop" Version="1.5.2-beta2" />
+    <PackageVersion Include="SixLabors.ImageSharp" Version="3.1.2" />
+    <PackageVersion Include="SpaceWizards.HttpListener" Version="0.1.0" />
+    <PackageVersion Include="SpaceWizards.NFluidsynth" Version="0.1.1" />
+    <PackageVersion Include="SpaceWizards.SharpFont" Version="1.0.2" />
+    <PackageVersion Include="SpaceWizards.Sodium" Version="0.2.1" />
+    <PackageVersion Include="System.Numerics.Vectors" Version="4.5.0" />
+    <PackageVersion Include="System.Memory" Version="4.5.5" />
+    <PackageVersion Include="System.Runtime.CompilerServices.Unsafe" Version="6.0.0" />
+    <PackageVersion Include="TerraFX.Interop.Windows" Version="10.0.22621.5" />
+    <PackageVersion Include="TerraFX.Interop.Xlib" Version="6.4.0" />
+    <PackageVersion Include="VorbisPizza" Version="1.3.0" />
+    <PackageVersion Include="YamlDotNet" Version="13.7.1" />
+    <PackageVersion Include="prometheus-net" Version="8.2.1" />
+    <PackageVersion Include="prometheus-net.DotNetRuntime" Version="4.4.0" />
+    <PackageVersion Include="PolySharp" Version="1.14.1" />
+  </ItemGroup>
+</Project>

Lidgren.Network/CursedHorrorsBeyondOurWildestImagination.cs

@@ -0,0 +1,9 @@
+using System.Runtime.CompilerServices;
+
+// So I wanted to mess with NetIncomingMessage and NetOutgoingMessage from tests.
+// Now.. the instructors are internal...
+// Unless...
+// I mean we have this project here from the weird way we're compiling Lidgren.
+// I could just put this in here... it wouldn't touch the main Lidgren repo at all...
+[assembly: InternalsVisibleTo("Robust.UnitTesting")]
+

Lidgren.Network/Lidgren.Network.csproj

@@ -16,6 +16,8 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <Compile Include="CursedHorrorsBeyondOurWildestImagination.cs" />
+
     <Compile Include="Lidgren.Network\Lidgren.Network\**\*.cs">
      <Link>%(RecursiveDir)%(Filename)%(Extension)</Link>
     </Compile>

MSBuild/Robust.Engine.Version.props

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

MSBuild/Robust.Properties.targets

@@ -4,6 +4,7 @@
 
   <PropertyGroup>
     <TargetFramework>net8.0</TargetFramework>
+    <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
   </PropertyGroup>
 
   <Import Project="Robust.Custom.targets" Condition="Exists('Robust.Custom.targets')"/>
@@ -27,5 +28,5 @@
   <Import Project="Robust.Analyzers.targets" Condition="'$(SkipRobustAnalyzer)' != 'true'" />
 
   <!-- serialization generator -->
-  <Import Project="Robust.Serialization.Generator.targets" />
+  <Import Project="Robust.Serialization.Generator.targets" Condition="'$(SkipRobustAnalyzer)' != 'true'" />
 </Project>

RELEASE-NOTES.md

@@ -54,6 +54,303 @@ END TEMPLATE-->
 *None yet*
 
 
+## 211.0.2
+
+### Bugfixes
+
+* Fix TextureRect scaling not handling UIScale correctly.
+
+
+## 211.0.1
+
+### Bugfixes
+
+* Fix GridChunkEnumerator on maps.
+
+
+## 211.0.0
+
+### Breaking changes
+
+* Moved ChunkIndicesEnumerator to engine and to a re-useable namespace at Robust.Shared/Maps.
+
+### New features
+
+* Added an Enlarged method for Box2Rotated.
+
+### Internal
+
+* Significantly optimise ChunkEnumerator / FindGridsIntersecting in certain use cases by intersecting the grid's AABB with the local AABB to avoid iterating dummy chunks.
+
+
+## 210.1.1
+
+### Bugfixes
+
+* Fixed multiple recent bugs with key binding storage.
+
+### Other
+
+* Change default of `ButtonGroup.IsNoneSetAllowed` to `true`. This makes it default again to the previous (unintentional) behavior.
+
+
+## 210.1.0
+
+### New features
+
+* `NetUserId` implements `ISelfSerialize` so can be used in data fields.
+* `ButtonGroup.IsNoneSetAllowed` to allow a button group to have no buttons pressed by default.
+
+
+## 210.0.3
+
+
+## 210.0.2
+
+### Bugfixes
+
+* Revert changes to `TextureRect` too.
+
+
+## 210.0.1
+
+### Bugfixes
+
+* Revert changes to `TextureButton` that broke style property handling.
+
+
+## 210.0.0
+
+### New features
+
+* Controls can now hook before, after, and during rendering of their children.
+* IRenderHandle is now a public API, with the caveat that it's properties and methods are unstable.
+* ButtonGroup now exposes what buttons it contains, alongside which is currently pressed.
+* OptionButton has additional styleclasses, and has a hook for modifying it's internal buttons.
+* PanelContainer.GetStyleBox() is now protected rather than private.
+* TextureButton now uses a TextureRect instead of custom drawing code.
+* TextureRect has additional style properties exposed.
+    * A new property, TextureSizeTarget, was added, which allows specifying a size in virtual pixels that the control should attempt to draw at.
+    * Stretch mode is now a style property.
+    * Scale is now a style property.
+* Avalonia.Metadata.XmlnsDefinitionAttribute is now permitted by the sandbox.
+* Add MaxDimension property to Box2 to return the higher of the Width or Height.
+* Add GetLocalPosition to convert ScreenCoordinates to coordinates relative to the control. Ignores window.
+* Add GlobalRect and GlobalPixelRect for controls to get their UIBox2i in screen terms.
+* Add dotted line drawing to DrawingHandleScreen.
+* You can use `Subs.CVar()` from an entity systems to subscribe to CVar changes. This is more convenient than `IConfigurationManager.OnValueChanged` as it automatically unsubscribes on system shutdown.
+* There is now a built-in type serializer for `DateTime`, so you can put `DateTime`s in your data fields.
+* `System.Text.Unicode.UnicodeRange` and `UnicodeRanges` are now available in the sandbox.
+
+### Bugfixes
+
+* UI drawing now properly accounts for a control's draw routine potentially mangling the current matrix.
+* UI roots now properly update when the global stylesheet is changed. They previously only did so if they had a dedicated stylesheet (which is the one case where they would be unaffected by a global sheet update.
+
+
+## 209.0.1
+
+### Bugfixes
+
+* Fix missed import from 209.0.0.
+
+
+## 209.0.0
+
+### Breaking changes
+
+* `replay.max_compressed_size` and `replay.max_uncompressed_size` CVars are now `long`.
+* Remove obsolete CoordinatesExtension for ToEntityCoordinates from GridUid / Vector2i.
+
+### New features
+
+* Add GetEntitiesOnMap / GetChildEntities to EntityLookupSystem to return components on the specified map and components with the specified parent respectively.
+* Add MaxDimension property to Box2 to return the higher of the Width or Height.
+* Add GetLocalPosition to convert ScreenCoordinates to coordinates relative to the control. Ignores window.
+* Add GlobalRect and GlobalPixelRect for controls to get their UIBox2i in screen terms.
+* Add dotted line drawing to DrawingHandleScreen.
+* `IConfigurationManager.LoadDefaultsFromTomlStream` properly does type conversions. This fixes scenarios like loading of `long` CVars.
+* Add helper methods for TileRef / Vector2i to SharedMapSystem for ToCenterCoordinates (tile center EntityCoordinates) and ToCoordinates (tile origin to EntityCoordinates).
+* Copy some of the coordinates extensions to SharedTransformSystem.
+
+### Bugfixes
+
+* Fixed integer overflows in replay max size calculation.
+* Explicitly capped `replay.replay_tick_batchSize` internally to avoid high values causing allocation failures.
+
+### Other
+
+* Important MIDI performance improvements.
+
+
+## 208.0.0
+
+### Breaking changes
+
+* Metadata flags are no longer serialized as they get rebuilt on entity startup.
+
+### Bugfixes
+
+* Log failing to load user keybinds and handle the exception.
+
+
+## 207.1.0
+
+### New features
+
+* Add the ability to merge grids via GridFixtureSystem.
+
+
+## 207.0.0
+
+### Breaking changes
+
+* Update EntityLookup internally so non-approximate queries use the GJK solver and are much more accurate. This also means the approximate flag matters much more if you don't need narrowphase checks.
+* Add shape versions of queries for both EntityLookup and MapManager.
+
+### Bugfixes
+
+* Fix PVS full state updates not clearing session entities and causing exceptions.
+
+### Other
+
+* Integration tests now run `NetMessage`s through serialization rather than passing the objects between client and server. This causes tests that missed `[NetSerializer]` attributes on any objects that need them to fail.
+
+### Internal
+
+* Remove a lot of duplicate code internally from EntityLookup and MapManager.
+
+
+## 206.0.0
+
+### Breaking changes
+
+* tpto will teleport you to physics-center instead of transform center instead.
+* Rename local EntityLookup methods to reflect they take local AABBs and not world AABBs.
+
+### New features
+
+* Add some additional EntityLookup methods for local queries.
+* Add support to PrototypeManager for parsing specific files / directories as abstract.
+
+### Bugfixes
+
+* Fix tpto short-circuiting if one of the listed entities isn't found.
+* Fix tpto not allowing grids as targets.
+
+### Other
+
+* Reduce MIDI source update rate from 10hz to 4hz.
+
+### Internal
+
+* Remove some duplicate internal code in EntityLookupSystem.
+* Skip serialization sourcegen in GLFW and Lidgren.
+
+
+## 205.0.0
+
+### Breaking changes
+
+* The unused `Robust.Physics` project has been deleted.
+* The project now uses [Central Package Management](https://learn.microsoft.com/en-us/nuget/consume-packages/central-package-management).
+* (Almost) all the NuGet packages have been updated. This causes many problems. I am so sorry.
+* Cleaned up some unused packages as well.
+
+
+## 204.1.0
+
+### New features
+
+* New `EntitySystem` subscription helper for working with Bound User Interface events. You can find them by doing `Subs.BuiEvents<>()` in a system.
+* The `EntityManager.Subscriptions` type (for building helper extension methods) now uses
+
+### Bugfixes
+
+* Avoid loading assemblies from content `/Assemblies` if Robust ships its own copy. This avoid duplicate or weird mismatching version issues.
+
+### Other
+
+* Removed glibc version check warning.
+
+
+## 204.0.0
+
+### Breaking changes
+
+* Make EntityManager abstract and make IEntityManager.EntityNetManager not nullable.
+* Make VVAccess.ReadWrite default for all Datafields instead of VVAccess.ReadOnly
+
+### New features
+
+* `TextEdit.OnTextChanged`
+* Add Pick and PickAndTake versions for System.Random for ICollections.
+
+### Bugfixes
+
+* Fix `IClipboardManager.GetText()` returning null in some cases.
+* Fix possible NRE in server-side console command completion code.
+* Fix possible NRE on DebugConsole logs.
+* Fix exception when VVing non-networked components.
+
+### Other
+
+* Remove "Do not use from content" from IComponent.
+
+
+## 203.0.0
+
+### Breaking changes
+
+* `IComponentFactory.RegisterIgnore()` no longer supports overwriting existing registrations, components should get ignored before they are registered.
+* Event bus subscriptions are now locked after `IEntityManager` has started, instead of after the first component gets added. Any event subscriptions now need to happen before startup (but after init).
+* Event bus subscriptions must now be locked before raising any events.
+* Delete FodyWeavers.xsd as it hasn't been used for a long time.
+* Remove physics sleep cancelling as it was, in hindsight, a bad idea.
+
+### New features
+
+* `RobustUnitTest` now has a `ExtraComponents` field for automatically registering additional components.
+* `IComponentFactory.RegisterIgnore()` now accepts more than one string.
+* Added `IComponentFactory.RegisterTypes` for simultaneously registering multiple components.
+
+### Bugfixes
+
+* Clamp volume calculations for audio rather than throwing.
+
+
+## 202.1.1
+
+### Bugfixes
+
+* Reverted some map/grid initialisation changes that might've been causing broadphase/physics errors.
+* Fixed PVS sometimes sending entities without first sending their children.
+* Fixed a container state handling bug caused by containers not removing expected entities when shutting down.
+* Fixed a `EnsureEntity<T>` state handling bug caused by improper handling of entity deletions.
+* Fixed a bad NetSyncEnabled debug assert.
+
+
+## 202.1.0
+
+### New features
+
+* Add GetLocalEntitiesIntersecting overload that takes in a griduid and a Vector2i tile.
+
+
+## 202.0.0
+
+### Breaking changes
+
+* Various entity manager methods now have a new `where T : IComponent` constraint.
+* The `IComponentFactory.ComponentAdded` event has been renamed to `ComponentsAdded` and now provides an array of component registrations.
+* `IComponentFactory.RegisterIgnore()` no longer supports overwriting existing registrations, components should get ignored before they are registered.
+
+### New features
+
+* Added `IComponentFactory.GetAllRegistrations()`
+* Add IComponentState interface support for component states so structs can be used in lieu of classes.
+
+
 ## 201.0.0
 
 ### Breaking changes

Resources/Locale/en-US/physics/grid_merging.ftl

@@ -0,0 +1,8 @@
+cmd-merge_grids-desc = Combines 2 grids into 1 grid
+cmd-merge_grids-help = merge_grids <gridUid1> <gridUid2> <offsetX> <offsetY> [angle]
+
+cmd-merge_grids-hintA = Grid A
+cmd-merge_grids-hintB = Grid B
+cmd-merge_grids-xOffset = X offset
+cmd-merge_grids-yOffset = Y offset
+cmd-merge_grids-angle = [Angle]

Robust.Analyzers.Tests/Aliases.cs

@@ -0,0 +1,8 @@
+// OH BOY. TURNS OUT IT GETS EVEN MORE CURSED.
+//
+// So because we're compiling a copy of Robust.Roslyn.Shared into every analyzer project,
+// the test project sees multiple copies of it. This would make it impossible to use.
+// UNLESS you use this obscure C# feature called "extern alias"
+// that I guarantee you you've never heard of before, and are now concerned about.
+
+extern alias SerializationGenerator;

Robust.Analyzers.Tests/ComponentPauseGeneratorTest.cs

@@ -0,0 +1,340 @@
+extern alias SerializationGenerator;
+using System.Linq;
+using System.Reflection;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp;
+using Microsoft.CodeAnalysis.Text;
+using NUnit.Framework;
+using SerializationGenerator::Robust.Roslyn.Shared;
+using SerializationGenerator::Robust.Serialization.Generator;
+
+namespace Robust.Analyzers.Tests;
+
+[TestFixture]
+[TestOf(typeof(ComponentPauseGenerator))]
+[Parallelizable(ParallelScope.All)]
+public sealed class ComponentPauseGeneratorTest
+{
+    private const string TypesCode = """
+        global using System;
+        global using Robust.Shared.Analyzers;
+        global using Robust.Shared.GameObjects;
+
+        namespace Robust.Shared.Analyzers
+        {
+            [AttributeUsage(AttributeTargets.Class, Inherited = false)]
+            public sealed class AutoGenerateComponentPauseAttribute : Attribute
+            {
+                public bool Dirty = false;
+            }
+
+            [AttributeUsage(AttributeTargets.Field | AttributeTargets.Property)]
+            public sealed class AutoPausedFieldAttribute : Attribute;
+
+            [AttributeUsage(AttributeTargets.Field | AttributeTargets.Property)]
+            public sealed class AutoNetworkedFieldAttribute : Attribute
+            {
+            }
+        }
+
+        namespace Robust.Shared.GameObjects
+        {
+            public interface IComponent;
+        }
+        """;
+
+    [Test]
+    public void TestBasic()
+    {
+        var result = RunGenerator("""
+            [AutoGenerateComponentPause]
+            public sealed partial class FooComponent : IComponent
+            {
+                [AutoPausedField]
+                public TimeSpan Foo;
+            }
+            """);
+
+        ExpectNoDiagnostics(result);
+        ExpectSource(
+            result,
+            """
+            // <auto-generated />
+
+            using Robust.Shared.GameObjects;
+
+            public partial class FooComponent
+            {
+            [RobustAutoGenerated]
+            public sealed class FooComponent_AutoPauseSystem : EntitySystem
+            {
+                public override void Initialize()
+                {
+                    SubscribeLocalEvent<FooComponent, EntityUnpausedEvent>(OnEntityUnpaused);
+                }
+
+                private void OnEntityUnpaused(EntityUid uid, FooComponent component, ref EntityUnpausedEvent args)
+                {
+                    component.Foo += args.PausedTime;
+                }
+            }
+            }
+
+            """);
+    }
+
+    [Test]
+    public void TestNullable()
+    {
+        var result = RunGenerator("""
+            [AutoGenerateComponentPause]
+            public sealed partial class FooComponent : IComponent
+            {
+                [AutoPausedField]
+                public TimeSpan? Foo;
+            }
+            """);
+
+        ExpectNoDiagnostics(result);
+        ExpectSource(
+            result,
+            """
+            // <auto-generated />
+
+            using Robust.Shared.GameObjects;
+
+            public partial class FooComponent
+            {
+            [RobustAutoGenerated]
+            public sealed class FooComponent_AutoPauseSystem : EntitySystem
+            {
+                public override void Initialize()
+                {
+                    SubscribeLocalEvent<FooComponent, EntityUnpausedEvent>(OnEntityUnpaused);
+                }
+
+                private void OnEntityUnpaused(EntityUid uid, FooComponent component, ref EntityUnpausedEvent args)
+                {
+                    if (component.Foo.HasValue)
+                        component.Foo = component.Foo.Value + args.PausedTime;
+                }
+            }
+            }
+
+            """);
+    }
+
+    [Test]
+    public void TestAutoState()
+    {
+        var result = RunGenerator("""
+            [AutoGenerateComponentPause]
+            public sealed partial class FooComponent : IComponent
+            {
+                [AutoPausedField, AutoNetworkedField]
+                public TimeSpan Foo;
+            }
+            """);
+
+        ExpectNoDiagnostics(result);
+        ExpectSource(
+            result,
+            """
+            // <auto-generated />
+
+            using Robust.Shared.GameObjects;
+
+            public partial class FooComponent
+            {
+            [RobustAutoGenerated]
+            public sealed class FooComponent_AutoPauseSystem : EntitySystem
+            {
+                public override void Initialize()
+                {
+                    SubscribeLocalEvent<FooComponent, EntityUnpausedEvent>(OnEntityUnpaused);
+                }
+
+                private void OnEntityUnpaused(EntityUid uid, FooComponent component, ref EntityUnpausedEvent args)
+                {
+                    component.Foo += args.PausedTime;
+                    Dirty(uid, component);
+                }
+            }
+            }
+
+            """);
+    }
+
+    [Test]
+    public void TestExplicitDirty()
+    {
+        var result = RunGenerator("""
+            [AutoGenerateComponentPause(Dirty = true)]
+            public sealed partial class FooComponent : IComponent
+            {
+                [AutoPausedField]
+                public TimeSpan Foo;
+            }
+            """);
+
+        ExpectNoDiagnostics(result);
+        ExpectSource(
+            result,
+            """
+            // <auto-generated />
+
+            using Robust.Shared.GameObjects;
+
+            public partial class FooComponent
+            {
+            [RobustAutoGenerated]
+            public sealed class FooComponent_AutoPauseSystem : EntitySystem
+            {
+                public override void Initialize()
+                {
+                    SubscribeLocalEvent<FooComponent, EntityUnpausedEvent>(OnEntityUnpaused);
+                }
+
+                private void OnEntityUnpaused(EntityUid uid, FooComponent component, ref EntityUnpausedEvent args)
+                {
+                    component.Foo += args.PausedTime;
+                    Dirty(uid, component);
+                }
+            }
+            }
+
+            """);
+    }
+
+    [Test]
+    public void TestDiagnosticNotIComponent()
+    {
+        var result = RunGenerator("""
+            [AutoGenerateComponentPause]
+            public sealed partial class FooComponent
+            {
+                [AutoPausedField]
+                public TimeSpan Foo;
+            }
+            """);
+
+        ExpectNoSource(result);
+        ExpectDiagnostics(result, [
+            (Diagnostics.IdComponentPauseNotComponent, new LinePositionSpan(new LinePosition(1, 28), new LinePosition(1, 40)))
+        ]);
+    }
+
+    [Test]
+    public void TestDiagnosticNoFields()
+    {
+        var result = RunGenerator("""
+            [AutoGenerateComponentPause]
+            public sealed partial class FooComponent : IComponent
+            {
+                public TimeSpan Foo;
+            }
+            """);
+
+        ExpectNoSource(result);
+        ExpectDiagnostics(result, [
+            (Diagnostics.IdComponentPauseNoFields, new LinePositionSpan(new LinePosition(1, 28), new LinePosition(1, 40)))
+        ]);
+    }
+
+    [Test]
+    public void TestDiagnosticNoParentAttribute()
+    {
+        var result = RunGenerator("""
+            public sealed partial class FooComponent : IComponent
+            {
+                [AutoPausedField]
+                public TimeSpan Foo, Fooz;
+
+                [AutoPausedField]
+                public TimeSpan Bar { get; set; }
+            }
+            """);
+
+        ExpectNoSource(result);
+        ExpectDiagnostics(result, [
+            (Diagnostics.IdComponentPauseNoParentAttribute, new LinePositionSpan(new LinePosition(3, 20), new LinePosition(3, 23))),
+            (Diagnostics.IdComponentPauseNoParentAttribute, new LinePositionSpan(new LinePosition(3, 25), new LinePosition(3, 29))),
+            (Diagnostics.IdComponentPauseNoParentAttribute, new LinePositionSpan(new LinePosition(6, 20), new LinePosition(6, 23)))
+        ]);
+    }
+
+    [Test]
+    public void TestDiagnosticWrongType()
+    {
+        var result = RunGenerator("""
+            [AutoGenerateComponentPause]
+            public sealed partial class FooComponent : IComponent
+            {
+                [AutoPausedField]
+                public int Foo, Fooz;
+
+                [AutoPausedField]
+                public int Bar { get; set; }
+            }
+            """);
+
+        ExpectNoSource(result);
+        ExpectDiagnostics(result, [
+            (Diagnostics.IdComponentPauseWrongTypeAttribute, new LinePositionSpan(new LinePosition(4, 15), new LinePosition(4, 18))),
+            (Diagnostics.IdComponentPauseWrongTypeAttribute, new LinePositionSpan(new LinePosition(4, 20), new LinePosition(4, 24))),
+            (Diagnostics.IdComponentPauseWrongTypeAttribute, new LinePositionSpan(new LinePosition(7, 15), new LinePosition(7, 18)))
+        ]);
+    }
+
+    private static void ExpectSource(GeneratorRunResult result, string expected)
+    {
+        Assert.That(result.GeneratedSources, Has.Length.EqualTo(1));
+
+        var source = result.GeneratedSources[0];
+
+        Assert.That(source.SourceText.ToString(), Is.EqualTo(expected));
+    }
+
+    private static void ExpectNoSource(GeneratorRunResult result)
+    {
+        Assert.That(result.GeneratedSources, Is.Empty);
+    }
+
+    private static void ExpectNoDiagnostics(GeneratorRunResult result)
+    {
+        Assert.That(result.Diagnostics, Is.Empty);
+    }
+
+    private static void ExpectDiagnostics(GeneratorRunResult result, (string code, LinePositionSpan span)[] diagnostics)
+    {
+        Assert.Multiple(() =>
+        {
+            Assert.That(result.Diagnostics, Has.Length.EqualTo(diagnostics.Length));
+            foreach (var (code, span) in diagnostics)
+            {
+                Assert.That(
+                    result.Diagnostics.Any(x => x.Id == code && x.Location.GetLineSpan().Span == span),
+                    $"Expected diagnostic with code {code} and location {span}");
+            }
+        });
+    }
+
+    private static GeneratorRunResult RunGenerator(string source)
+    {
+        var compilation = (Compilation)CSharpCompilation.Create("compilation",
+            new[]
+            {
+                CSharpSyntaxTree.ParseText(source, path: "Source.cs"),
+                CSharpSyntaxTree.ParseText(TypesCode, path: "Types.cs")
+            },
+            new[] { MetadataReference.CreateFromFile(typeof(Binder).GetTypeInfo().Assembly.Location) },
+            new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary));
+
+        var generator = new ComponentPauseGenerator();
+        GeneratorDriver driver = CSharpGeneratorDriver.Create(generator);
+        driver = driver.RunGeneratorsAndUpdateCompilation(compilation, out var newCompilation, out _);
+        var result = driver.GetRunResult();
+
+        return result.Results[0];
+    }
+}

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

@@ -1,24 +1,32 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="..\MSBuild\Robust.Properties.targets" />
-  <Import Project="..\MSBuild\Robust.Engine.props" />
-  
+  <PropertyGroup>
+    <SkipRobustAnalyzer>true</SkipRobustAnalyzer>
+  </PropertyGroup>
+
+  <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" />
+    <PackageVersion Update="NUnit" Version="3.14.0" />
   </ItemGroup>
-  
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CodeAnalysis.Analyzer.Testing"/>
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp"/>
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Analyzer.Testing.NUnit"/>
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces"/>
+    <PackageReference Include="NUnit"/>
+    <PackageReference Include="NUnit3TestAdapter"/>
+    <PackageReference Include="NUnit.Analyzers"/>
+    <PackageReference Include="Microsoft.NET.Test.Sdk"/>
+  </ItemGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\Robust.Analyzers\Robust.Analyzers.csproj"/>
+    <ProjectReference Include="..\Robust.Serialization.Generator\Robust.Serialization.Generator.csproj" Aliases="SerializationGenerator" />
   </ItemGroup>
 </Project>

Robust.Analyzers/AccessAnalyzer.cs

@@ -5,6 +5,7 @@ using System.Linq;
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.Diagnostics;
 using Microsoft.CodeAnalysis.Operations;
+using Robust.Roslyn.Shared;
 using Robust.Shared.Analyzers.Implementation;
 
 namespace Robust.Analyzers

Robust.Analyzers/ByRefEventAnalyzer.cs

@@ -4,6 +4,7 @@ using System.Linq;
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.Diagnostics;
 using Microsoft.CodeAnalysis.Operations;
+using Robust.Roslyn.Shared;
 using static Microsoft.CodeAnalysis.SymbolEqualityComparer;
 
 namespace Robust.Analyzers;
@@ -16,7 +17,7 @@ public sealed class ByRefEventAnalyzer : DiagnosticAnalyzer
     private static readonly DiagnosticDescriptor ByRefEventSubscribedByValueRule = new(
         Diagnostics.IdByRefEventSubscribedByValue,
         "By-ref event subscribed to by value",
-        "Tried to subscribe to a by-ref event '{0}' by value.",
+        "Tried to subscribe to a by-ref event '{0}' by value",
         "Usage",
         DiagnosticSeverity.Error,
         true,
@@ -26,7 +27,7 @@ public sealed class ByRefEventAnalyzer : DiagnosticAnalyzer
     private static readonly DiagnosticDescriptor ByRefEventRaisedByValueRule = new(
         Diagnostics.IdByRefEventRaisedByValue,
         "By-ref event raised by value",
-        "Tried to raise a by-ref event '{0}' by value.",
+        "Tried to raise a by-ref event '{0}' by value",
         "Usage",
         DiagnosticSeverity.Error,
         true,
@@ -36,7 +37,7 @@ public sealed class ByRefEventAnalyzer : DiagnosticAnalyzer
     private static readonly DiagnosticDescriptor ByValueEventRaisedByRefRule = new(
         Diagnostics.IdValueEventRaisedByRef,
         "Value event raised by-ref",
-        "Tried to raise a value event '{0}' by-ref.",
+        "Tried to raise a value event '{0}' by-ref",
         "Usage",
         DiagnosticSeverity.Error,
         true,

Robust.Analyzers/DataDefinitionAnalyzer.cs

@@ -5,6 +5,7 @@ using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.CSharp;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
 using Microsoft.CodeAnalysis.Diagnostics;
+using Robust.Roslyn.Shared;
 
 namespace Robust.Analyzers;
 
@@ -18,7 +19,7 @@ public sealed class DataDefinitionAnalyzer : DiagnosticAnalyzer
     private static readonly DiagnosticDescriptor DataDefinitionPartialRule = new(
         Diagnostics.IdDataDefinitionPartial,
         "Type must be partial",
-        "Type {0} is a DataDefinition but is not partial.",
+        "Type {0} is a DataDefinition but is not partial",
         "Usage",
         DiagnosticSeverity.Error,
         true,
@@ -28,7 +29,7 @@ public sealed class DataDefinitionAnalyzer : DiagnosticAnalyzer
     private static readonly DiagnosticDescriptor NestedDataDefinitionPartialRule = new(
         Diagnostics.IdNestedDataDefinitionPartial,
         "Type must be partial",
-        "Type {0} contains nested data definition {1} but is not partial.",
+        "Type {0} contains nested data definition {1} but is not partial",
         "Usage",
         DiagnosticSeverity.Error,
         true,
@@ -38,7 +39,7 @@ public sealed class DataDefinitionAnalyzer : DiagnosticAnalyzer
     private static readonly DiagnosticDescriptor DataFieldWritableRule = new(
         Diagnostics.IdDataFieldWritable,
         "Data field must not be readonly",
-        "Data field {0} in data definition {1} is readonly.",
+        "Data field {0} in data definition {1} is readonly",
         "Usage",
         DiagnosticSeverity.Error,
         true,
@@ -48,7 +49,7 @@ public sealed class DataDefinitionAnalyzer : DiagnosticAnalyzer
     private static readonly DiagnosticDescriptor DataFieldPropertyWritableRule = new(
         Diagnostics.IdDataFieldPropertyWritable,
         "Data field property must have a setter",
-        "Data field property {0} in data definition {1} does not have a setter.",
+        "Data field property {0} in data definition {1} does not have a setter",
         "Usage",
         DiagnosticSeverity.Error,
         true,

Robust.Analyzers/DataDefinitionFixer.cs

@@ -9,7 +9,7 @@ using Microsoft.CodeAnalysis.CodeFixes;
 using Microsoft.CodeAnalysis.CSharp;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
 using static Microsoft.CodeAnalysis.CSharp.SyntaxKind;
-using static Robust.Analyzers.Diagnostics;
+using static Robust.Roslyn.Shared.Diagnostics;
 
 namespace Robust.Analyzers;
 

Robust.Analyzers/ExplicitInterfaceAnalyzer.cs

@@ -10,6 +10,7 @@ using Microsoft.CodeAnalysis.CodeFixes;
 using Microsoft.CodeAnalysis.CSharp;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
 using Microsoft.CodeAnalysis.Diagnostics;
+using Robust.Roslyn.Shared;
 using Document = Microsoft.CodeAnalysis.Document;
 
 namespace Robust.Analyzers

Robust.Analyzers/ExplicitVirtualAnalyzer.cs

@@ -5,6 +5,7 @@ using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.CSharp;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
 using Microsoft.CodeAnalysis.Diagnostics;
+using Robust.Roslyn.Shared;
 
 namespace Robust.Analyzers;
 

Robust.Analyzers/MeansImplicitAssigmentSuppressor.cs

@@ -2,6 +2,7 @@ using System.Collections.Immutable;
 using System.Linq;
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.Diagnostics;
+using Robust.Roslyn.Shared;
 
 namespace Robust.Analyzers
 {

Robust.Analyzers/NotNullableFlagAnalyzer.cs

@@ -3,6 +3,7 @@ using System.Linq;
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.Diagnostics;
 using Microsoft.CodeAnalysis.Operations;
+using Robust.Roslyn.Shared;
 
 namespace Robust.Analyzers;
 
@@ -31,7 +32,7 @@ public sealed class NotNullableFlagAnalyzer : DiagnosticAnalyzer
 
     private static readonly DiagnosticDescriptor InvalidNotNullableImplementationRule = new (
         Diagnostics.IdInvalidNotNullableFlagImplementation,
-        "Invalid NotNullable flag implementation.",
+        "Invalid NotNullable flag implementation",
         "NotNullable flag is either not typed as bool, or does not have a default value equaling false",
         "Usage",
         DiagnosticSeverity.Error,
@@ -41,7 +42,7 @@ public sealed class NotNullableFlagAnalyzer : DiagnosticAnalyzer
     private static readonly DiagnosticDescriptor InvalidNotNullableTypeRule = new (
         Diagnostics.IdInvalidNotNullableFlagType,
         "Failed to resolve type parameter",
-        "Failed to resolve type parameter \"{0}\".",
+        "Failed to resolve type parameter \"{0}\"",
         "Usage",
         DiagnosticSeverity.Error,
         true,
@@ -49,7 +50,7 @@ public sealed class NotNullableFlagAnalyzer : DiagnosticAnalyzer
 
     private static readonly DiagnosticDescriptor NotNullableFlagValueTypeRule = new (
         Diagnostics.IdNotNullableFlagValueType,
-        "NotNullable flag not supported for value types.",
+        "NotNullable flag not supported for value types",
         "Value types as generic arguments are not supported for NotNullable flags",
         "Usage",
         DiagnosticSeverity.Error,

Robust.Analyzers/PreferGenericVariantAnalyzer.cs

@@ -11,6 +11,7 @@ using Microsoft.CodeAnalysis.CSharp;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
 using Microsoft.CodeAnalysis.Diagnostics;
 using Microsoft.CodeAnalysis.Operations;
+using Robust.Roslyn.Shared;
 
 namespace Robust.Analyzers;
 

Robust.Analyzers/Robust.Analyzers.csproj

@@ -1,21 +1,10 @@
 <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 NotNullableFlagAnalyzer. -->
     <Compile Include="..\Robust.Shared\Analyzers\NotNullableFlagAttribute.cs" />
   </ItemGroup>
-  
+
   <ItemGroup>
     <!-- Needed for FriendAnalyzer. -->
     <Compile Include="..\Robust.Shared\Analyzers\AccessAttribute.cs" />
@@ -27,4 +16,10 @@
     <Compile Include="..\Robust.Shared\Analyzers\PreferGenericVariantAttribute.cs" />
   </ItemGroup>
 
+  <Import Project="../Robust.Roslyn.Shared/Robust.Roslyn.Shared.props" />
+
+  <PropertyGroup>
+    <Nullable>disable</Nullable>
+  </PropertyGroup>
+
 </Project>

Robust.Analyzers/SerializableAnalyzer.cs

@@ -10,6 +10,7 @@ using Microsoft.CodeAnalysis.CodeFixes;
 using Microsoft.CodeAnalysis.CSharp;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
 using Microsoft.CodeAnalysis.Diagnostics;
+using Robust.Roslyn.Shared;
 
 namespace Robust.Analyzers
 {

Robust.Analyzers/TaskResultAnalyzer.cs

@@ -3,6 +3,7 @@ using System.Diagnostics.CodeAnalysis;
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.Diagnostics;
 using Microsoft.CodeAnalysis.Operations;
+using Robust.Roslyn.Shared;
 
 namespace Robust.Analyzers;
 

Robust.Benchmarks/Configs/DefaultSQLConfig.cs

@@ -1,15 +1,18 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Globalization;
 using BenchmarkDotNet.Analysers;
 using BenchmarkDotNet.Columns;
 using BenchmarkDotNet.Configs;
 using BenchmarkDotNet.Diagnosers;
+using BenchmarkDotNet.EventProcessors;
 using BenchmarkDotNet.Exporters;
 using BenchmarkDotNet.Filters;
 using BenchmarkDotNet.Jobs;
 using BenchmarkDotNet.Loggers;
 using BenchmarkDotNet.Order;
 using BenchmarkDotNet.Reports;
+using BenchmarkDotNet.Running;
 using BenchmarkDotNet.Validators;
 using Robust.Benchmarks.Exporters;
 
@@ -44,10 +47,16 @@ public sealed class DefaultSQLConfig : IConfig
 
     public IEnumerable<BenchmarkLogicalGroupRule> GetLogicalGroupRules() => DefaultConfig.Instance.GetLogicalGroupRules();
 
+    public IEnumerable<EventProcessor> GetEventProcessors() => DefaultConfig.Instance.GetEventProcessors();
+
+    public IEnumerable<IColumnHidingRule> GetColumnHidingRules() => DefaultConfig.Instance.GetColumnHidingRules();
     public IOrderer Orderer => DefaultConfig.Instance.Orderer!;
+    public ICategoryDiscoverer? CategoryDiscoverer => DefaultConfig.Instance.CategoryDiscoverer;
     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;
+    public TimeSpan BuildTimeout => DefaultConfig.Instance.BuildTimeout;
+    public IReadOnlyList<Conclusion> ConfigAnalysisConclusion => DefaultConfig.Instance.ConfigAnalysisConclusion;
 }

Robust.Benchmarks/Robust.Benchmarks.csproj

@@ -13,12 +13,12 @@
     <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">
+    <PackageReference Include="BenchmarkDotNet" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="6.0.4" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" />
   </ItemGroup>
 
   <Import Project="..\MSBuild\Robust.Properties.targets" />

Robust.Client.Injectors/Robust.Client.Injectors.csproj

@@ -6,8 +6,8 @@
     </PropertyGroup>
 
     <ItemGroup>
-      <PackageReference Include="Microsoft.Build.Framework" Version="17.0.0" />
-      <PackageReference Include="Mono.Cecil" Version="0.11.3" />
+      <PackageReference Include="Microsoft.Build.Framework" Version="17.8.3" />
+      <PackageReference Include="Mono.Cecil" Version="0.11.5" />
       <PackageReference Include="Pidgin" Version="2.5.0" />
     </ItemGroup>
 

Robust.Client.NameGenerator/Robust.Client.NameGenerator.csproj

@@ -1,18 +1,17 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
-    <PropertyGroup>
-        <TargetFramework>netstandard2.0</TargetFramework>
-    </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.0.1" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.3" PrivateAssets="all" />
-  </ItemGroup>
-
   <ItemGroup>
     <Compile Link="XamlX\filename" Include="../XamlX/src/XamlX/**/*.cs" />
     <Compile Remove="../XamlX/src/XamlX/**/SreTypeSystem.cs" />
     <Compile Remove="../XamlX/src/XamlX/obj/**" />
     <Compile Include="..\Robust.Client\UserInterface\ControlPropertyAccess.cs" />
   </ItemGroup>
+
+  <Import Project="../Robust.Roslyn.Shared/Robust.Roslyn.Shared.props" />
+
+  <PropertyGroup>
+    <!-- XamlX doesn't do NRTs. -->
+    <Nullable>disable</Nullable>
+  </PropertyGroup>
+
 </Project>

Robust.Client.WebView/Robust.Client.WebView.csproj

@@ -8,8 +8,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="JetBrains.Annotations" Version="2020.3.0" />
-    <PackageReference Include="Robust.Natives.Cef" Version="120.1.9" />
+    <PackageReference Include="JetBrains.Annotations" />
+    <PackageReference Include="Robust.Natives.Cef" />
   </ItemGroup>
 
   <ItemGroup>

Robust.Client/Audio/AudioOverlay.cs

@@ -39,7 +39,7 @@ public sealed class AudioOverlay : Overlay
 
     protected internal override void Draw(in OverlayDrawArgs args)
     {
-        var localPlayer = _playerManager.LocalPlayer?.ControlledEntity;
+        var localPlayer = _playerManager.LocalEntity;
 
         if (args.ViewportControl == null || localPlayer == null)
             return;

Robust.Client/Audio/AudioSystem.cs

@@ -106,8 +106,8 @@ public sealed partial class AudioSystem : SharedAudioSystem
         SubscribeNetworkEvent<PlayAudioEntityMessage>(OnEntityAudio);
         SubscribeNetworkEvent<PlayAudioPositionalMessage>(OnEntityCoordinates);
 
-        CfgManager.OnValueChanged(CVars.AudioAttenuation, OnAudioAttenuation, true);
-        CfgManager.OnValueChanged(CVars.AudioRaycastLength, OnRaycastLengthChanged, true);
+        Subs.CVar(CfgManager, CVars.AudioAttenuation, OnAudioAttenuation, true);
+        Subs.CVar(CfgManager, CVars.AudioRaycastLength, OnRaycastLengthChanged, true);
     }
 
     private void OnAudioState(EntityUid uid, AudioComponent component, ref AfterAutoHandleStateEvent args)
@@ -133,13 +133,6 @@ public sealed partial class AudioSystem : SharedAudioSystem
         _audio.SetMasterGain(value);
     }
 
-    public override void Shutdown()
-    {
-        CfgManager.UnsubValueChanged(CVars.AudioAttenuation, OnAudioAttenuation);
-        CfgManager.UnsubValueChanged(CVars.AudioRaycastLength, OnRaycastLengthChanged);
-        base.Shutdown();
-    }
-
     private void OnAudioPaused(EntityUid uid, AudioComponent component, ref EntityPausedEvent args)
     {
         component.Pause();

Robust.Client/Audio/Midi/MidiManager.cs

@@ -72,7 +72,7 @@ internal sealed partial class MidiManager : IMidiManager
 
     // To avoid lock contention until some kind of MIDI refactor.
     private TimeSpan _nextUpdate;
-    private TimeSpan _updateFrequency = TimeSpan.FromSeconds(0.1f);
+    private TimeSpan _updateFrequency = TimeSpan.FromSeconds(0.25f);
 
     private SemaphoreSlim _updateSemaphore = new(1);
 
@@ -114,7 +114,7 @@ internal sealed partial class MidiManager : IMidiManager
         "/usr/share/sounds/sf2/TimGM6mb.sf2",
     };
 
-    private const string WindowsSoundfont = @"C:\WINDOWS\system32\drivers\gm.dls";
+    private static readonly string WindowsSoundfont = $@"{Environment.GetEnvironmentVariable("SystemRoot")}\system32\drivers\gm.dls";
 
     private const string OsxSoundfont =
         "/System/Library/Components/CoreAudio.component/Contents/Resources/gs_instruments.dls";
@@ -192,7 +192,12 @@ internal sealed partial class MidiManager : IMidiManager
             _settings["synth.midi-bank-select"].StringValue = "gm";
             //_settings["synth.verbose"].IntValue = 1; // Useful for debugging.
 
-            _parallel.AddAndInvokeParallelCountChanged(UpdateParallelCount);
+            var midiParallel = _cfgMan.GetCVar(CVars.MidiParallelism);
+            _settings["synth.polyphony"].IntValue = Math.Clamp(1024 + (int)(Math.Log2(midiParallel) * 2048), 1, 65535);
+            _settings["synth.cpu-cores"].IntValue = Math.Clamp(midiParallel, 1, 256);
+
+            _midiSawmill.Debug($"Synth Cores: {_settings["synth.cpu-cores"].IntValue}");
+            _midiSawmill.Debug($"Synth Polyphony: {_settings["synth.polyphony"].IntValue}");
         }
         catch (Exception e)
         {
@@ -201,7 +206,10 @@ internal sealed partial class MidiManager : IMidiManager
             return;
         }
 
-        _midiThread = new Thread(ThreadUpdate);
+        _midiThread = new Thread(ThreadUpdate)
+        {
+            Name = "RobustToolbox MIDI Thread"
+        };
         _midiThread.Start();
 
         _updateJob = new MidiUpdateJob()
@@ -219,18 +227,6 @@ internal sealed partial class MidiManager : IMidiManager
         FluidsynthInitialized = true;
     }
 
-    private void UpdateParallelCount()
-    {
-        if (_settings == null)
-            return;
-
-        _settings["synth.polyphony"].IntValue = Math.Clamp(1024 + (int)(Math.Log2(_parallel.ParallelProcessCount) * 2048), 1, 65535);
-        _settings["synth.cpu-cores"].IntValue = Math.Clamp(_parallel.ParallelProcessCount, 1, 256);
-
-        _midiSawmill.Debug($"Synth Cores: {_settings["synth.cpu-cores"].IntValue}");
-        _midiSawmill.Debug($"Synth Polyphony: {_settings["synth.polyphony"].IntValue}");
-    }
-
     private void LoggerDelegate(NFluidsynth.Logger.LogLevel level, string message, IntPtr data)
     {
         var rLevel = level switch

Robust.Client/Audio/Midi/MidiRenderer.cs

@@ -38,6 +38,7 @@ internal sealed class MidiRenderer : IMidiRenderer
     private readonly Synth _synth;
     private readonly Sequencer _sequencer;
     private NFluidsynth.Player? _player;
+    private int _playerTotalTicks;
     private MidiDriver? _driver;
     private byte _midiProgram = 1;
     private byte _midiBank = 1;
@@ -144,7 +145,21 @@ internal sealed class MidiRenderer : IMidiRenderer
     public bool DisableProgramChangeEvent { get; set; } = true;
 
     [ViewVariables(VVAccess.ReadWrite)]
-    public int PlayerTotalTick => _player?.GetTotalTicks ?? 0;
+    public int PlayerTotalTick
+    {
+        get
+        {
+            // GetTotalTicks is really expensive (has to iterate the entire file, not cached).
+            // Slight problem with caching it ourselves: the value only becomes available when the player loads the MIDI file.
+            // And that only happens after playback really starts, with the timer and synth and all that stuff.
+            // So we cache it "as soon as it's available", i.e. not 0.
+            // We don't care about playlists and such, so it shouldn't change anymore after.
+            if (_playerTotalTicks != 0)
+                return _playerTotalTicks;
+
+            return _playerTotalTicks = _player?.GetTotalTicks ?? 0;
+        }
+    }
 
     [ViewVariables(VVAccess.ReadWrite)]
     public int PlayerTick
@@ -339,6 +354,7 @@ internal sealed class MidiRenderer : IMidiRenderer
                 return false;
             }
 
+            _playerTotalTicks = 0;
             _player?.Dispose();
             _player = new NFluidsynth.Player(_synth);
             _player.SetPlaybackCallback(MidiPlayerEventHandler);
@@ -377,6 +393,7 @@ internal sealed class MidiRenderer : IMidiRenderer
             _player?.Join();
             _player?.Dispose();
             _player = null;
+            _playerTotalTicks = 0;
         }
 
         StopAllNotes();

Robust.Client/BaseClient.cs

@@ -229,7 +229,7 @@ namespace Robust.Client
 
             // Don't invoke PlayerLeaveServer if PlayerJoinedServer & GameStartedSetup hasn't been called yet.
             if (RunLevel > ClientRunLevel.Connecting)
-                PlayerLeaveServer?.Invoke(this, new PlayerEventArgs(_playMan.LocalPlayer?.Session));
+                PlayerLeaveServer?.Invoke(this, new PlayerEventArgs(_playMan.LocalSession));
 
             LastDisconnectReason = args.Reason;
             GameStoppedReset();

Robust.Client/Console/ClientConsoleHost.cs

@@ -188,7 +188,7 @@ namespace Robust.Client.Console
             }
 
             args.RemoveAt(0);
-            var shell = new ConsoleShell(this, session ?? _player.LocalPlayer?.Session, session == null);
+            var shell = new ConsoleShell(this, session ?? _player.LocalSession, session == null);
             var cmdArgs = args.ToArray();
 
             AnyCommandExecuted?.Invoke(shell, commandName, command, cmdArgs);
@@ -200,8 +200,7 @@ namespace Robust.Client.Console
             // When not connected to a server, you can run all local commands.
             // When connected to a server, you can only run commands according to the con group controller.
 
-            return _player.LocalPlayer == null
-                   || _player.LocalPlayer.Session.Status <= SessionStatus.Connecting
+            return _player.LocalSession is not { Status: > SessionStatus.Connecting }
                    || _conGroup.CanCommand(cmdName);
         }
 

Robust.Client/Console/Commands/ClientSpawnCommand.cs

@@ -16,8 +16,7 @@ namespace Robust.Client.Console.Commands
 
         public override void Execute(IConsoleShell shell, string argStr, string[] args)
         {
-            var controlled = _playerManager.LocalPlayer?.ControlledEntity ?? EntityUid.Invalid;
-            if (controlled == EntityUid.Invalid)
+            if (_playerManager.LocalEntity is not { } controlled)
             {
                 shell.WriteLine("You don't have an attached entity.");
                 return;

Robust.Client/Console/Commands/ProfileEntitySpawningCommand.cs

@@ -43,6 +43,7 @@ public sealed class ProfileEntitySpawningCommand : IConsoleCommand
 
         GC.Collect();
 
+        Span<EntityUid> ents = stackalloc EntityUid[amount];
         var stopwatch = new Stopwatch();
         stopwatch.Start();
 
@@ -50,12 +51,17 @@ public sealed class ProfileEntitySpawningCommand : IConsoleCommand
 
         for (var i = 0; i < amount; i++)
         {
-            _entities.SpawnEntity(prototype, MapCoordinates.Nullspace);
+            ents[i] = _entities.SpawnEntity(prototype, MapCoordinates.Nullspace);
         }
 
         MeasureProfiler.SaveData();
 
         shell.WriteLine($"Client: Profiled spawning {amount} entities in {stopwatch.Elapsed.TotalMilliseconds:N3} ms");
+
+        foreach (var ent in ents)
+        {
+            _entities.DeleteEntity(ent);
+        }
     }
 }
 #endif

Robust.Client/Debugging/DebugPhysicsSystem.cs

@@ -420,7 +420,7 @@ namespace Robust.Client.Debugging
                 if (mapPos.MapId != args.MapId)
                     return;
 
-                var player = _playerManager.LocalPlayer?.ControlledEntity;
+                var player = _playerManager.LocalEntity;
 
                 if (!_entityManager.TryGetComponent<TransformComponent>(player, out var playerXform) ||
                     playerXform.MapID != args.MapId)

Robust.Client/FodyWeavers.xsd

@@ -1,82 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
-  <!-- This file was generated by Fody. Manual changes to this file will be lost when your project is rebuilt. -->
-  <xs:element name="Weavers">
-    <xs:complexType>
-      <xs:all>
-        <xs:element name="InlineIL" minOccurs="0" maxOccurs="1">
-          <xs:complexType>
-            <xs:attribute name="SequencePoints">
-              <xs:annotation>
-                <xs:documentation>Defines if sequence points should be generated for each emitted IL instruction. Default value: Debug</xs:documentation>
-              </xs:annotation>
-              <xs:simpleType>
-                <xs:restriction base="xs:string">
-                  <xs:enumeration value="Debug">
-                    <xs:annotation>
-                      <xs:documentation>Insert sequence points in Debug builds only (this is the default).</xs:documentation>
-                    </xs:annotation>
-                  </xs:enumeration>
-                  <xs:enumeration value="Release">
-                    <xs:annotation>
-                      <xs:documentation>Insert sequence points in Release builds only.</xs:documentation>
-                    </xs:annotation>
-                  </xs:enumeration>
-                  <xs:enumeration value="True">
-                    <xs:annotation>
-                      <xs:documentation>Always insert sequence points.</xs:documentation>
-                    </xs:annotation>
-                  </xs:enumeration>
-                  <xs:enumeration value="False">
-                    <xs:annotation>
-                      <xs:documentation>Never insert sequence points.</xs:documentation>
-                    </xs:annotation>
-                  </xs:enumeration>
-                </xs:restriction>
-              </xs:simpleType>
-            </xs:attribute>
-            <xs:attribute name="Warnings">
-              <xs:annotation>
-                <xs:documentation>Defines how warnings should be handled. Default value: Warnings</xs:documentation>
-              </xs:annotation>
-              <xs:simpleType>
-                <xs:restriction base="xs:string">
-                  <xs:enumeration value="Warnings">
-                    <xs:annotation>
-                      <xs:documentation>Emit build warnings (this is the default).</xs:documentation>
-                    </xs:annotation>
-                  </xs:enumeration>
-                  <xs:enumeration value="Ignore">
-                    <xs:annotation>
-                      <xs:documentation>Do not emit warnings.</xs:documentation>
-                    </xs:annotation>
-                  </xs:enumeration>
-                  <xs:enumeration value="Errors">
-                    <xs:annotation>
-                      <xs:documentation>Treat warnings as errors.</xs:documentation>
-                    </xs:annotation>
-                  </xs:enumeration>
-                </xs:restriction>
-              </xs:simpleType>
-            </xs:attribute>
-          </xs:complexType>
-        </xs:element>
-      </xs:all>
-      <xs:attribute name="VerifyAssembly" type="xs:boolean">
-        <xs:annotation>
-          <xs:documentation>'true' to run assembly verification (PEVerify) on the target assembly after all weavers have been executed.</xs:documentation>
-        </xs:annotation>
-      </xs:attribute>
-      <xs:attribute name="VerifyIgnoreCodes" type="xs:string">
-        <xs:annotation>
-          <xs:documentation>A comma-separated list of error codes that can be safely ignored in assembly verification.</xs:documentation>
-        </xs:annotation>
-      </xs:attribute>
-      <xs:attribute name="GenerateXsd" type="xs:boolean">
-        <xs:annotation>
-          <xs:documentation>'false' to turn off automatic generation of the XML Schema file.</xs:documentation>
-        </xs:annotation>
-      </xs:attribute>
-    </xs:complexType>
-  </xs:element>
-</xs:schema>

Robust.Client/GameController/GameController.Standalone.cs

@@ -35,8 +35,6 @@ namespace Robust.Client
                 throw new InvalidOperationException("Cannot start twice!");
             }
 
-            GlibcBug.Check();
-
             _hasStarted = true;
 
             if (CommandLineArgs.TryParse(args, out var parsed))

Robust.Client/GameObjects/ClientEntityManager.Network.cs

@@ -42,6 +42,8 @@ public sealed partial class ClientEntityManager
         var pending = PendingNetEntityStates.GetOrNew(nEntity);
         pending.Add((typeof(T), callerEntity));
 
+
+
         return entity.Item1;
     }
 

Robust.Client/GameObjects/ClientEntityManager.cs

@@ -221,7 +221,7 @@ namespace Robust.Client.GameObjects
         public void DispatchReceivedNetworkMsg(EntityEventArgs msg)
         {
             var sessionType = typeof(EntitySessionMessage<>).MakeGenericType(msg.GetType());
-            var sessionMsg = Activator.CreateInstance(sessionType, new EntitySessionEventArgs(_playerManager.LocalPlayer!.Session), msg)!;
+            var sessionMsg = Activator.CreateInstance(sessionType, new EntitySessionEventArgs(_playerManager.LocalSession!), msg)!;
             ReceivedSystemMessage?.Invoke(this, msg);
             ReceivedSystemMessage?.Invoke(this, sessionMsg);
         }

Robust.Client/GameObjects/EntitySystems/ClientOccluderSystem.cs

@@ -27,7 +27,6 @@ internal sealed class ClientOccluderSystem : OccluderSystem
         base.Initialize();
 
         SubscribeLocalEvent<OccluderComponent, AnchorStateChangedEvent>(OnAnchorChanged);
-        SubscribeLocalEvent<OccluderComponent, ReAnchorEvent>(OnReAnchor);
         SubscribeLocalEvent<OccluderComponent, ComponentShutdown>(OnShutdown);
     }
 
@@ -90,11 +89,6 @@ internal sealed class ClientOccluderSystem : OccluderSystem
         AnchorStateChanged(uid, comp, args.Transform);
     }
 
-    private void OnReAnchor(EntityUid uid, OccluderComponent comp, ref ReAnchorEvent args)
-    {
-        AnchorStateChanged(uid, comp, args.Xform);
-    }
-
     private void QueueOccludedDirectionUpdate(EntityUid sender, OccluderComponent occluder, TransformComponent? xform = null)
     {
         if (!Resolve(sender, ref xform))
@@ -174,8 +168,9 @@ internal sealed class ClientOccluderSystem : OccluderSystem
 
         var tile = grid.TileIndicesFor(xform.Coordinates);
 
-        DebugTools.Assert(occluder.LastPosition == null
-            || occluder.LastPosition.Value.Grid == xform.GridUid && occluder.LastPosition.Value.Tile == tile);
+        // TODO: Sub to parent changes instead or something.
+        // DebugTools.Assert(occluder.LastPosition == null
+            // || occluder.LastPosition.Value.Grid == xform.GridUid && occluder.LastPosition.Value.Tile == tile);
         occluder.LastPosition = (xform.GridUid.Value, tile);
 
         // dir starts at the relative effective south direction;

Robust.Client/GameObjects/EntitySystems/ContainerSystem.cs

@@ -63,6 +63,17 @@ namespace Robust.Client.GameObjects
             Insert((uid, TransformQuery.GetComponent(uid), MetaQuery.GetComponent(uid), null), container);
         }
 
+        public override void ShutdownContainer(BaseContainer container)
+        {
+            foreach (var ent in container.ExpectedEntities)
+            {
+                if (ExpectedEntities.Remove(ent, out var c))
+                    DebugTools.Assert(c == container);
+            }
+
+            base.ShutdownContainer(container);
+        }
+
         private void HandleComponentState(EntityUid uid, ContainerManagerComponent component, ref ComponentHandleState args)
         {
             if (args.Current is not ContainerManagerComponentState cast)

Robust.Client/GameObjects/EntitySystems/InputSystem.cs

@@ -105,12 +105,10 @@ namespace Robust.Client.GameObjects
         /// <param name="inputCmd">Input command to handle as predicted.</param>
         public void PredictInputCommand(IFullInputCmdMessage inputCmd)
         {
-            DebugTools.AssertNotNull(_playerManager.LocalPlayer);
-
             var keyFunc = _inputManager.NetworkBindMap.KeyFunctionName(inputCmd.InputFunctionId);
 
             Predicted = true;
-            var session = _playerManager.LocalPlayer!.Session;
+            var session = _playerManager.LocalSession;
             foreach (var handler in BindRegistry.GetHandlers(keyFunc))
             {
                 if (handler.HandleCmdMessage(EntityManager, session, inputCmd))
@@ -145,27 +143,22 @@ namespace Robust.Client.GameObjects
 
         private void GenerateInputCommand(IConsoleShell shell, string argstr, string[] args)
         {
-            var localPlayer = _playerManager.LocalPlayer;
-            if(localPlayer is null)
-                return;
-
-            var pent = localPlayer.ControlledEntity;
-            if(pent is null)
+            if (_playerManager.LocalEntity is not { } pent)
                 return;
 
             BoundKeyFunction keyFunction = new BoundKeyFunction(args[0]);
             BoundKeyState state = args[1] == "u" ? BoundKeyState.Up: BoundKeyState.Down;
 
-            var pxform = Transform(pent.Value);
+            var pxform = Transform(pent);
             var wPos = pxform.WorldPosition + new Vector2(float.Parse(args[2]), float.Parse(args[3]));
-            var coords = EntityCoordinates.FromMap(EntityManager, pent.Value, new MapCoordinates(wPos, pxform.MapID));
+            var coords = EntityCoordinates.FromMap(EntityManager, pent, new MapCoordinates(wPos, pxform.MapID));
 
             var funcId = _inputManager.NetworkBindMap.KeyFunctionID(keyFunction);
 
             var message = new FullInputCmdMessage(_timing.CurTick, _timing.TickFraction, funcId, state,
                 GetNetCoordinates(coords), new ScreenCoordinates(0, 0, default), NetEntity.Invalid);
 
-            HandleInputCommand(localPlayer.Session, keyFunction, message);
+            HandleInputCommand(_playerManager.LocalSession, keyFunction, message);
         }
 
         private void OnAttachedEntityChanged(LocalPlayerAttachedEvent message)
@@ -208,11 +201,8 @@ namespace Robust.Client.GameObjects
         /// </summary>
         public void SetEntityContextActive()
         {
-            var controlled = _playerManager.LocalPlayer?.ControlledEntity ?? EntityUid.Invalid;
-            if (controlled == EntityUid.Invalid)
-            {
+            if (_playerManager.LocalEntity is not { } controlled)
                 return;
-            }
 
             SetEntityContextActive(_inputManager, controlled);
         }

Robust.Client/GameObjects/EntitySystems/SpriteSystem.cs

@@ -62,7 +62,7 @@ namespace Robust.Client.GameObjects
             SubscribeLocalEvent<SpriteComponent, SpriteUpdateInertEvent>(QueueUpdateInert);
             SubscribeLocalEvent<SpriteComponent, ComponentInit>(OnInit);
 
-            _cfg.OnValueChanged(CVars.RenderSpriteDirectionBias, OnBiasChanged, true);
+            Subs.CVar(_cfg, CVars.RenderSpriteDirectionBias, OnBiasChanged, true);
             _sawmill = _logManager.GetSawmill("sprite");
         }
 
@@ -72,12 +72,6 @@ namespace Robust.Client.GameObjects
             QueueUpdateInert(uid, component);
         }
 
-        public override void Shutdown()
-        {
-            base.Shutdown();
-            _cfg.UnsubValueChanged(CVars.RenderSpriteDirectionBias, OnBiasChanged);
-        }
-
         private void OnBiasChanged(double value)
         {
             SpriteComponent.DirectionBias = value;

Robust.Client/GameObjects/EntitySystems/UserInterfaceSystem.cs

@@ -29,10 +29,7 @@ namespace Robust.Client.GameObjects
 
             var uiKey = ev.UiKey;
             var message = ev.Message;
-            // This should probably not happen at this point, but better make extra sure!
-            if (_playerManager.LocalPlayer != null)
-                message.Session = _playerManager.LocalPlayer.Session;
-
+            message.Session = _playerManager.LocalSession!;
             message.Entity = GetNetEntity(uid);
             message.UiKey = uiKey;
 
@@ -75,8 +72,7 @@ namespace Robust.Client.GameObjects
             boundInterface.Open();
             uiComp.OpenInterfaces[uiKey] = boundInterface;
 
-            var playerSession = _playerManager.LocalPlayer?.Session;
-            if (playerSession != null)
+            if (_playerManager.LocalSession is { } playerSession)
             {
                 uiComp.Interfaces[uiKey]._subscribedSessions.Add(playerSession);
                 RaiseLocalEvent(uid, new BoundUIOpenedEvent(uiKey, uid, playerSession), true);

Robust.Client/GameObjects/EntitySystems/VelocityDebugSystem.cs

@@ -35,7 +35,7 @@ namespace Robust.Client.GameObjects
                 return;
             }
 
-            var player = _playerManager.LocalPlayer?.ControlledEntity;
+            var player = _playerManager.LocalEntity;
 
             if (player == null || !EntityManager.TryGetComponent(player.Value, out PhysicsComponent? body))
             {

Robust.Client/GameStates/ClientGameStateManager.cs

@@ -49,16 +49,16 @@ namespace Robust.Client.GameStates
         // Game state dictionaries that get used every tick.
         private readonly Dictionary<EntityUid, (NetEntity NetEntity, MetaDataComponent Meta, bool EnteringPvs, GameTick LastApplied, EntityState? curState, EntityState? nextState)> _toApply = new();
         private readonly Dictionary<NetEntity, EntityState> _toCreate = new();
-        private readonly Dictionary<ushort, (IComponent Component, ComponentState? curState, ComponentState? nextState)> _compStateWork = new();
+        private readonly Dictionary<ushort, (IComponent Component, IComponentState? curState, IComponentState? nextState)> _compStateWork = new();
         private readonly Dictionary<EntityUid, HashSet<Type>> _pendingReapplyNetStates = new();
         private readonly HashSet<NetEntity> _stateEnts = new();
         private readonly List<EntityUid> _toDelete = new();
         private readonly List<IComponent> _toRemove = new();
-        private readonly Dictionary<NetEntity, Dictionary<ushort, ComponentState>> _outputData = new();
+        private readonly Dictionary<NetEntity, Dictionary<ushort, IComponentState>> _outputData = new();
         private readonly List<(EntityUid, TransformComponent)> _queuedBroadphaseUpdates = new();
 
-        private readonly ObjectPool<Dictionary<ushort, ComponentState>> _compDataPool =
-            new DefaultObjectPool<Dictionary<ushort, ComponentState>>(new DictPolicy<ushort, ComponentState>(), 256);
+        private readonly ObjectPool<Dictionary<ushort, IComponentState>> _compDataPool =
+            new DefaultObjectPool<Dictionary<ushort, IComponentState>>(new DictPolicy<ushort, IComponentState>(), 256);
 
         private uint _metaCompNetId;
 
@@ -232,9 +232,9 @@ namespace Robust.Client.GameStates
                 return default;
             }
 
-            DebugTools.AssertNotNull(_players.LocalPlayer);
+            DebugTools.Assert(_players.LocalSession != null);
 
-            var evArgs = new EntitySessionEventArgs(_players.LocalPlayer!.Session);
+            var evArgs = new EntitySessionEventArgs(_players.LocalSession);
             _pendingSystemMessages.Enqueue((_nextInputCmdSeq, _timing.CurTick, message,
                 new EntitySessionMessage<T>(evArgs, message)));
 
@@ -257,7 +257,7 @@ namespace Robust.Client.GameStates
         public void UpdateFullRep(GameState state, bool cloneDelta = false)
             => _processor.UpdateFullRep(state, cloneDelta);
 
-        public Dictionary<NetEntity, Dictionary<ushort, ComponentState>> GetFullRep()
+        public Dictionary<NetEntity, Dictionary<ushort, IComponentState>> GetFullRep()
             => _processor.GetFullRep();
 
         private void HandlePvsLeaveMessage(MsgStateLeavePvs message)
@@ -779,15 +779,13 @@ namespace Robust.Client.GameStates
                     newMeta.LastStateApplied = curState.ToSequence;
 
                     // Check if there's any component states awaiting this entity.
-                    if (_entityManager.PendingNetEntityStates.TryGetValue(es.NetEntity, out var value))
+                    if (_entityManager.PendingNetEntityStates.Remove(es.NetEntity, out var value))
                     {
                         foreach (var (type, owner) in value)
                         {
                             var pending = _pendingReapplyNetStates.GetOrNew(owner);
                             pending.Add(type);
                         }
-
-                        _entityManager.PendingNetEntityStates.Remove(es.NetEntity);
                     }
                 }
 
@@ -851,6 +849,17 @@ namespace Robust.Client.GameStates
                 if (!metas.TryGetComponent(uid, out var meta))
                     continue;
 
+                // It may also have been queued for deletion, in which case its last server state entry has already been removed.
+                // I love me some spaghetti order-of-operation dependent code
+
+                if (!_processor._lastStateFullRep.ContainsKey(meta.NetEntity))
+                {
+                    DebugTools.Assert(curState.EntityDeletions.Value.Contains(meta.NetEntity));
+                    continue;
+                }
+
+                DebugTools.Assert(!curState.EntityDeletions.Value.Contains(meta.NetEntity));
+
                 // State already being re-applied so don't bulldoze it.
                 ref var state = ref CollectionsMarshal.GetValueRefOrAddDefault(_toApply, uid, out var exists);
 

Robust.Client/GameStates/GameStateProcessor.cs

@@ -32,7 +32,7 @@ namespace Robust.Client.GameStates
         /// <summary>
         /// This dictionary stores the full most recently received server state of any entity. This is used whenever predicted entities get reset.
         /// </summary>
-        internal readonly Dictionary<NetEntity, Dictionary<ushort, ComponentState>> _lastStateFullRep
+        internal readonly Dictionary<NetEntity, Dictionary<ushort, IComponentState>> _lastStateFullRep
             = new();
 
         /// <inheritdoc />
@@ -212,7 +212,7 @@ Had full state: {LastFullState != null}"
             {
                 if (!_lastStateFullRep.TryGetValue(entityState.NetEntity, out var compData))
                 {
-                    compData = new Dictionary<ushort, ComponentState>();
+                    compData = new Dictionary<ushort, IComponentState>();
                     _lastStateFullRep.Add(entityState.NetEntity, compData);
                 }
 
@@ -391,7 +391,7 @@ Had full state: {LastFullState != null}"
             LastFullStateRequested = null;
         }
 
-        public void MergeImplicitData(Dictionary<NetEntity, Dictionary<ushort, ComponentState>> implicitData)
+        public void MergeImplicitData(Dictionary<NetEntity, Dictionary<ushort, IComponentState>> implicitData)
         {
             foreach (var (netEntity, implicitEntState) in implicitData)
             {
@@ -425,18 +425,18 @@ Had full state: {LastFullState != null}"
             }
         }
 
-        public Dictionary<ushort, ComponentState> GetLastServerStates(NetEntity netEntity)
+        public Dictionary<ushort, IComponentState> GetLastServerStates(NetEntity netEntity)
         {
             return _lastStateFullRep[netEntity];
         }
 
-        public Dictionary<NetEntity, Dictionary<ushort, ComponentState>> GetFullRep()
+        public Dictionary<NetEntity, Dictionary<ushort, IComponentState>> GetFullRep()
         {
             return _lastStateFullRep;
         }
 
         public bool TryGetLastServerStates(NetEntity entity,
-            [NotNullWhen(true)] out Dictionary<ushort, ComponentState>? dictionary)
+            [NotNullWhen(true)] out Dictionary<ushort, IComponentState>? dictionary)
         {
             return _lastStateFullRep.TryGetValue(entity, out dictionary);
         }

Robust.Client/GameStates/IClientGameStateManager.cs

@@ -113,7 +113,7 @@ namespace Robust.Client.GameStates
         /// <summary>
         /// Returns the full collection of cached game states that are used to reset predicted entities.
         /// </summary>
-        Dictionary<NetEntity, Dictionary<ushort, ComponentState>> GetFullRep();
+        Dictionary<NetEntity, Dictionary<ushort, IComponentState>> GetFullRep();
 
         /// <summary>
         /// This will perform some setup in order to reset the game to an earlier state. To fully reset the state

Robust.Client/GameStates/IGameStateProcessor.cs

@@ -83,13 +83,13 @@ namespace Robust.Client.GameStates
         ///     The data to merge.
         ///     It's a dictionary of entity ID -> (component net ID -> ComponentState)
         /// </param>
-        void MergeImplicitData(Dictionary<NetEntity, Dictionary<ushort, ComponentState>> data);
+        void MergeImplicitData(Dictionary<NetEntity, Dictionary<ushort, IComponentState>> data);
 
         /// <summary>
         ///     Get the last state data from the server for an entity.
         /// </summary>
         /// <returns>Dictionary (net ID -> ComponentState)</returns>
-        Dictionary<ushort, ComponentState> GetLastServerStates(NetEntity entity);
+        Dictionary<ushort, IComponentState> GetLastServerStates(NetEntity entity);
 
         /// <summary>
         ///     Calculate the number of applicable states in the game state buffer from a given tick.
@@ -99,6 +99,6 @@ namespace Robust.Client.GameStates
         int GetApplicableStateCount(GameTick? fromTick);
 
         bool TryGetLastServerStates(NetEntity entity,
-            [NotNullWhen(true)] out Dictionary<ushort, ComponentState>? dictionary);
+            [NotNullWhen(true)] out Dictionary<ushort, IComponentState>? dictionary);
     }
 }

Robust.Client/GameStates/NetGraphOverlay.cs

@@ -313,7 +313,7 @@ namespace Robust.Client.GameStates
 
                 if (args.Length == 0)
                 {
-                    entity = _playerManager.LocalPlayer?.ControlledEntity ?? EntityUid.Invalid;
+                    entity = _playerManager.LocalEntity ?? EntityUid.Invalid;
                 }
                 else if (!NetEntity.TryParse(args[0], out var netEntity) || !_entManager.TryGetEntity(netEntity, out entity))
                 {

Robust.Client/Graphics/Clyde/Clyde.GridRendering.cs

@@ -28,6 +28,8 @@ namespace Robust.Client.Graphics.Clyde
         private int _verticesPerChunk(MapChunk chunk) => chunk.ChunkSize * chunk.ChunkSize * 4;
         private int _indicesPerChunk(MapChunk chunk) => chunk.ChunkSize * chunk.ChunkSize * GetQuadBatchIndexCount();
 
+        private List<Entity<MapGridComponent>> _grids = new();
+
         private void _drawGrids(Viewport viewport, Box2 worldAABB, Box2Rotated worldBounds, IEye eye)
         {
             var mapId = eye.Position.MapId;
@@ -37,14 +39,15 @@ namespace Robust.Client.Graphics.Clyde
                 mapId = MapId.Nullspace;
             }
 
-            var grids = new List<Entity<MapGridComponent>>();
-            _mapManager.FindGridsIntersecting(mapId, worldBounds, ref grids);
+            _grids.Clear();
+            _mapManager.FindGridsIntersecting(mapId, worldBounds, ref _grids);
 
             var requiresFlush = true;
             GLShaderProgram gridProgram = default!;
             var gridOverlays = GetOverlaysForSpace(OverlaySpace.WorldSpaceGrids);
+            var mapSystem = _entityManager.System<SharedMapSystem>();
 
-            foreach (var mapGrid in grids)
+            foreach (var mapGrid in _grids)
             {
                 if (!_mapChunkData.TryGetValue(mapGrid, out var data))
                 {
@@ -65,7 +68,7 @@ namespace Robust.Client.Graphics.Clyde
 
                 var transform = _entityManager.GetComponent<TransformComponent>(mapGrid);
                 gridProgram.SetUniform(UniIModelMatrix, transform.WorldMatrix);
-                var enumerator = mapGrid.Comp.GetMapChunks(worldBounds);
+                var enumerator = mapSystem.GetMapChunks(mapGrid.Owner, mapGrid.Comp, worldBounds);
 
                 while (enumerator.MoveNext(out var chunk))
                 {

Robust.Client/Graphics/Clyde/Clyde.Windowing.cs

@@ -224,8 +224,8 @@ namespace Robust.Client.Graphics.Clyde
                     fixed (char* pCaption = "RobustToolbox: Failed to create window")
                     {
                         Windows.MessageBoxW(HWND.NULL,
-                            (ushort*) pText,
-                            (ushort*) pCaption,
+                            pText,
+                            pCaption,
                             MB.MB_OK | MB.MB_ICONERROR);
                     }
                 }

Robust.Client/Graphics/Clyde/GLContext/GLContextAngle.cs

@@ -413,7 +413,7 @@ namespace Robust.Client.Graphics.Clyde
                     DXGI_ADAPTER_DESC1 desc;
                     ThrowIfFailed("GetDesc1", _adapter->GetDesc1(&desc));
 
-                    var descName = new ReadOnlySpan<char>(desc.Description, 128).TrimEnd('\0');
+                    var descName = ((ReadOnlySpan<char>)desc.Description).TrimEnd('\0');
 
                     Logger.DebugS("clyde.ogl.angle", "Successfully created D3D11 device!");
                     Logger.DebugS("clyde.ogl.angle", $"D3D11 Device Adapter: {descName.ToString()}");
@@ -493,7 +493,7 @@ namespace Robust.Client.Graphics.Clyde
                     DXGI_ADAPTER_DESC1 desc;
                     ThrowIfFailed("GetDesc1", adapter->GetDesc1(&desc));
 
-                    var descName = new ReadOnlySpan<char>(desc.Description, 128);
+                    var descName = ((ReadOnlySpan<char>)desc.Description);
 
                     if (descName.StartsWith(name))
                         return adapter;

Robust.Client/Graphics/Clyde/VramCommand.cs

@@ -36,7 +36,7 @@ namespace Robust.Client.Graphics.Clyde
                 adapter->Release();
                 ThrowIfFailed("GetDesc", adapter3->GetDesc2(&desc));
 
-                var descString = new ReadOnlySpan<char>(desc.Description, 128).TrimEnd('\0');
+                var descString = ((ReadOnlySpan<char>)desc.Description).TrimEnd('\0');
                 shell.WriteLine(descString.ToString());
 
                 DXGI_QUERY_VIDEO_MEMORY_INFO memInfo;

Robust.Client/Graphics/Clyde/Windowing/Glfw.Windows.cs

@@ -654,7 +654,7 @@ namespace Robust.Client.Graphics.Clyde
 
             private static void WinThreadGetClipboard(CmdGetClipboard cmd)
             {
-                var clipboard = GLFW.GetClipboardString((Window*) cmd.Window);
+                var clipboard = GLFW.GetClipboardString((Window*) cmd.Window) ?? "";
                 // Don't have to care about synchronization I don't think so just fire this immediately.
                 cmd.Tcs.TrySetResult(clipboard);
             }

Robust.Client/Graphics/Drawing/DrawingHandleBase.cs

@@ -3,7 +3,7 @@ using System.Diagnostics;
 using System.Numerics;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
-using Robust.Shared.Graphics;
+using System.Runtime.Intrinsics;
 using Robust.Shared.Maths;
 
 namespace Robust.Client.Graphics
@@ -100,12 +100,43 @@ namespace Robust.Client.Graphics
             DrawPrimitives(primitiveTopology, White, indices, drawVertices);
         }
 
-        private void PadVerticesV2(ReadOnlySpan<Vector2> input, Span<DrawVertexUV2DColor> output, Color color)
+        private static void PadVerticesV2(ReadOnlySpan<Vector2> input, Span<DrawVertexUV2DColor> output, Color color)
         {
-            Color colorLinear = Color.FromSrgb(color);
-            for (var i = 0; i < output.Length; i++)
+            if (input.Length == 0)
+                return;
+
+            if (input.Length != output.Length)
             {
-                output[i] = new DrawVertexUV2DColor(input[i], new Vector2(0.5f, 0.5f), colorLinear);
+                throw new InvalidOperationException("Invalid lengths!");
+            }
+
+            var colorLinear = Color.FromSrgb(color);
+            var colorVec = Unsafe.As<Color, Vector128<float>>(ref colorLinear);
+            var uvVec = Vector128.Create(0, 0, 0.5f, 0.5f);
+            var maskVec = Vector128.Create(0xFFFFFFFF, 0xFFFFFFFF, 0, 0).AsSingle();
+
+            var simdVectors = (nuint)(input.Length / 2);
+            ref readonly var srcBase = ref Unsafe.As<Vector2, float>(ref Unsafe.AsRef(in input[0]));
+            ref var dstBase = ref Unsafe.As<DrawVertexUV2DColor, float>(ref output[0]);
+
+            for (nuint i = 0; i < simdVectors; i++)
+            {
+                var positions = Vector128.LoadUnsafe(in srcBase, i * 4);
+
+                var posColorLower = (positions & maskVec) | uvVec;
+                var posColorUpper = (Vector128.Shuffle(positions, Vector128.Create(2, 3, 0, 0)) & maskVec) | uvVec;
+
+                posColorLower.StoreUnsafe(ref dstBase, i * 16);
+                colorVec.StoreUnsafe(ref dstBase, i * 16 + 4);
+                posColorUpper.StoreUnsafe(ref dstBase, i * 16 + 8);
+                colorVec.StoreUnsafe(ref dstBase, i * 16 + 12);
+            }
+
+            var lastPos = (int)simdVectors * 2;
+            if (lastPos != output.Length)
+            {
+                // Odd number of vertices. Handle the last manually.
+                output[lastPos] = new DrawVertexUV2DColor(input[lastPos], new Vector2(0.5f, 0.5f), colorLinear);
             }
         }
 

Robust.Client/Graphics/Drawing/DrawingHandleScreen.cs

@@ -2,6 +2,7 @@ using System;
 using System.Numerics;
 using System.Text;
 using Robust.Client.GameObjects;
+using Robust.Shared.Collections;
 using Robust.Shared.GameObjects;
 using Robust.Shared.Graphics;
 using Robust.Shared.Maths;
@@ -14,6 +15,79 @@ namespace Robust.Client.Graphics
         {
         }
 
+        /// <summary>
+        /// Simialr to DrawLine but has dashes interspersed.
+        /// </summary>
+        /// <param name="offset">Offset from the start of the line.</param>
+        /// <param name="dashSize">How long a dash is.</param>
+        /// <param name="gapSize">How long the gap between dashes is.</param>
+        public void DrawDottedLine(Vector2 from, Vector2 to, Color color, float offset = 0f, float dashSize = 8f, float gapSize = 2f)
+        {
+            var lineVector = to - from;
+
+            // No drawing for you.
+            if (lineVector.LengthSquared() < 10f * float.Epsilon)
+                return;
+
+            var lineAndGap = gapSize + dashSize;
+            var lines = new ValueList<Vector2>();
+
+            // Minimum distance.
+            if (lineVector.Length() < lineAndGap)
+            {
+                lines.Add(from);
+                lines.Add(to);
+            }
+            else
+            {
+                var maxLength = lineVector.Length();
+                var normalizedLine = lineVector.Normalized();
+                var dashVector = normalizedLine * dashSize;
+                var gapVector = normalizedLine * gapSize;
+
+                var position = from;
+                offset %= (dashSize + gapSize);
+                var length = offset;
+                var dashLength = dashSize;
+
+                // If offset is less than gap size then start with a gap
+                // otherwise start with a partial line
+                if (offset > 0f)
+                {
+                    if (offset < gapSize)
+                    {
+                        position += normalizedLine * offset;
+                        length += offset;
+                    }
+                    else
+                    {
+                        dashLength = (offset - gapSize);
+                    }
+                }
+
+                while (length < maxLength)
+                {
+                    lines.Add(position);
+
+                    position += normalizedLine * dashLength;
+                    var lengthFromStart = (position - from).Length();
+
+                    // if over length then cap the thing.
+                    if (lengthFromStart > maxLength)
+                    {
+                        position = to;
+                    }
+
+                    lines.Add(position);
+                    dashLength = dashVector.Length();
+                    position += gapVector;
+                    length = (position - from).Length();
+                }
+            }
+
+            DrawPrimitives(DrawPrimitiveTopology.LineList, lines.Span, color);
+        }
+
         public abstract void DrawRect(UIBox2 rect, Color color, bool filled = true);
 
         public abstract void DrawTextureRectRegion(Texture texture, UIBox2 rect, UIBox2? subRegion = null, Color? modulate = null);

Robust.Client/Graphics/IRenderHandle.cs

@@ -6,7 +6,10 @@ using Robust.Shared.Maths;
 
 namespace Robust.Client.Graphics
 {
-    internal interface IRenderHandle
+    /// <remarks>
+    ///     Unstable API. Likely to break hard during renderer rewrite if you rely on it.
+    /// </remarks>
+    public interface IRenderHandle
     {
         DrawingHandleScreen DrawingHandleScreen { get; }
         DrawingHandleWorld DrawingHandleWorld { get; }

Robust.Client/Graphics/Shaders/ShaderPrototype.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Numerics;
 using Robust.Client.ResourceManagement;
@@ -69,7 +69,7 @@ namespace Robust.Client.Graphics
                     ShaderBlendMode? blend = null;
                     if (_rawBlendMode != null)
                     {
-                        if (!Enum.TryParse<ShaderBlendMode>(_rawBlendMode.ToUpper(), out var parsed))
+                        if (!Enum.TryParse<ShaderBlendMode>(_rawBlendMode, true, out var parsed))
                             Logger.Error($"invalid mode: {_rawBlendMode}");
                         else
                             blend = parsed;

Robust.Client/Input/IInputManager.cs

@@ -40,7 +40,7 @@ namespace Robust.Client.Input
         void KeyDown(KeyEventArgs e);
         void KeyUp(KeyEventArgs e);
 
-        IKeyBinding RegisterBinding(in KeyBindingRegistration reg, bool markModified=true);
+        IKeyBinding RegisterBinding(in KeyBindingRegistration reg, bool markModified=true, bool invalid=false);
 
         void RemoveBinding(IKeyBinding binding, bool markModified=true);
 

Robust.Client/Input/InputManager.cs

@@ -124,12 +124,19 @@ namespace Robust.Client.Input
             var path = new ResPath(KeybindsPath);
             if (_resourceMan.UserData.Exists(path))
             {
-                LoadKeyFile(path, true);
+                try
+                {
+                    LoadKeyFile(path, false, true);
+                }
+                catch (Exception e)
+                {
+                    Logger.ErrorS("input", "Failed to load user keybindings: " + e);
+                }
             }
 
             if (_resourceMan.ContentFileExists(path))
             {
-                LoadKeyFile(path, false);
+                LoadKeyFile(path, true);
             }
         }
 
@@ -489,7 +496,13 @@ namespace Robust.Client.Input
             return true;
         }
 
-        private void LoadKeyFile(ResPath file, bool userData)
+        /// <summary>
+        /// Loads a keybind file, configuring keybinds.
+        /// </summary>
+        /// <param name="file">File to load from the content package</param>
+        /// <param name="defaultRegistration">Whether or not this is a "default" keybind set. If it is, then it won't override the current configuration, only the defaults.</param>
+        /// <param name="userData">Whether or not to load from the user data directory instead of the content package.</param>
+        public void LoadKeyFile(ResPath file, bool defaultRegistration, bool userData = false)
         {
             TextReader reader;
             if (userData)
@@ -510,16 +523,19 @@ namespace Robust.Client.Input
             {
                 var baseKeyRegs = _serialization.Read<KeyBindingRegistration[]>(BaseKeyRegsNode, notNullableOverride: true);
 
+
                 foreach (var reg in baseKeyRegs)
                 {
+                    var invalid = false;
+
                     if (reg.Type != KeyBindingType.Command && !NetworkBindMap.FunctionExists(reg.Function.FunctionName))
                     {
-                        Logger.ErrorS("input", "Key function in {0} does not exist: '{1}'", file,
+                        Logger.DebugS("input", "Key function in {0} does not exist: '{1}'.", file,
                             reg.Function);
-                        continue;
+                        invalid = true;
                     }
 
-                    if (!userData)
+                    if (defaultRegistration)
                     {
                         _defaultRegistrations.Add(reg);
 
@@ -531,19 +547,24 @@ namespace Robust.Client.Input
                         }
                     }
 
-                    RegisterBinding(reg, markModified: userData);
+                    RegisterBinding(reg, markModified: !defaultRegistration, invalid);
                 }
             }
 
-            if (userData && mapping.TryGet("leaveEmpty", out var node))
+            if (!defaultRegistration && mapping.TryGet("leaveEmpty", out var node))
             {
                 var leaveEmpty = _serialization.Read<BoundKeyFunction[]>(node, notNullableOverride: true);
 
-                if (leaveEmpty.Length > 0)
+                foreach (var bind in leaveEmpty)
                 {
                     // Adding to _modifiedKeyFunctions means that these keybinds won't be loaded from the base file.
                     // Because they've been explicitly cleared.
-                    _modifiedKeyFunctions.UnionWith(leaveEmpty);
+                    _modifiedKeyFunctions.Add(bind);
+
+                    // Adding to bindingsByFunction because if the keybind is not valid(For example if it's from another
+                    // server then we will have problems saving the file)
+                    _bindingsByFunction.GetOrNew(bind);
+
                 }
             }
         }
@@ -571,7 +592,7 @@ namespace Robust.Client.Input
             return binding;
         }
 
-        public IKeyBinding RegisterBinding(in KeyBindingRegistration reg, bool markModified = true)
+        public IKeyBinding RegisterBinding(in KeyBindingRegistration reg, bool markModified = true, bool invalid = false)
         {
             var binding = new KeyBinding(this, reg.Function.FunctionName, reg.Type, reg.BaseKey, reg.CanFocus, reg.CanRepeat,
                 reg.AllowSubCombs, reg.Priority, reg.Mod1, reg.Mod2, reg.Mod3);
@@ -602,7 +623,7 @@ namespace Robust.Client.Input
 
         public void InputModeChanged() => OnInputModeChanged?.Invoke();
 
-        private void RegisterBinding(KeyBinding binding, bool markModified = true)
+        private void RegisterBinding(KeyBinding binding, bool markModified = true, bool invalid = false)
         {
             // we sort larger combos first so they take priority over smaller (single key) combos,
             // so they get processed first in KeyDown and such.
@@ -617,7 +638,8 @@ namespace Robust.Client.Input
                 _modifiedKeyFunctions.Add(binding.Function);
             }
 
-            _bindings.Insert(pos, binding);
+            if (!invalid)
+                _bindings.Insert(pos, binding);
             _bindingsByFunction.GetOrNew(binding.Function).Add(binding);
             OnKeyBindingAdded?.Invoke(binding);
         }

Robust.Client/Map/TileEdgeOverlay.cs

@@ -37,7 +37,9 @@ public sealed class TileEdgeOverlay : GridOverlay
         var tileDimensions = new Vector2(tileSize, tileSize);
         var (_, _, worldMatrix, invMatrix) = xformSystem.GetWorldPositionRotationMatrixWithInv(Grid.Owner);
         args.WorldHandle.SetTransform(worldMatrix);
-        var localAABB = invMatrix.TransformBox(args.WorldBounds);
+        var bounds = args.WorldBounds;
+        bounds = new Box2Rotated(bounds.Box.Enlarged(1), bounds.Rotation, bounds.Origin);
+        var localAABB = invMatrix.TransformBox(bounds);
 
         var enumerator = mapSystem.GetLocalTilesEnumerator(Grid.Owner, Grid, localAABB, false);
 

Robust.Client/Physics/PhysicsSystem.Predict.cs

@@ -207,8 +207,8 @@ public sealed partial class PhysicsSystem
             var contact = contacts[i];
             var uidA = contact.EntityA;
             var uidB = contact.EntityB;
-            var bodyATransform = GetPhysicsTransform(uidA, xformQuery.GetComponent(uidA), xformQuery);
-            var bodyBTransform = GetPhysicsTransform(uidB, xformQuery.GetComponent(uidB), xformQuery);
+            var bodyATransform = GetPhysicsTransform(uidA, xformQuery.GetComponent(uidA));
+            var bodyBTransform = GetPhysicsTransform(uidB, xformQuery.GetComponent(uidB));
             contact.UpdateIsTouching(bodyATransform, bodyBTransform);
         }
 

Robust.Client/Placement/Modes/AlignSimilar.cs

@@ -44,7 +44,7 @@ namespace Robust.Client.Placement.Modes
 
             var closestEntity = snapToEntities[0];
             var closestTransform = pManager.EntityManager.GetComponent<TransformComponent>(closestEntity);
-            if (!pManager.EntityManager.TryGetComponent<SpriteComponent?>(closestEntity, out var component) || component.BaseRSI == null)
+            if (!pManager.EntityManager.TryGetComponent(closestEntity, out SpriteComponent? component) || component.BaseRSI == null)
             {
                 return;
             }

Robust.Client/Placement/PlacementManager.cs

@@ -495,7 +495,7 @@ namespace Robust.Client.Placement
         {
             // Try to get current map.
             var map = MapId.Nullspace;
-            if (EntityManager.TryGetComponent(PlayerManager.LocalPlayer?.ControlledEntity, out TransformComponent? xform))
+            if (EntityManager.TryGetComponent(PlayerManager.LocalEntity, out TransformComponent? xform))
             {
                 map = xform.MapID;
             }
@@ -512,7 +512,7 @@ namespace Robust.Client.Placement
 
         private bool CurrentEraserMouseCoordinates(out EntityCoordinates coordinates)
         {
-            var ent = PlayerManager.LocalPlayer?.ControlledEntity ?? EntityUid.Invalid;
+            var ent = PlayerManager.LocalEntity ?? EntityUid.Invalid;
             if (ent == EntityUid.Invalid)
             {
                 coordinates = new EntityCoordinates();
@@ -640,7 +640,7 @@ namespace Robust.Client.Placement
 
             if (CurrentPermission is not {Range: > 0} ||
                 !CurrentMode.RangeRequired ||
-                PlayerManager.LocalPlayer?.ControlledEntity is not {Valid: true} controlled)
+                PlayerManager.LocalEntity is not {Valid: true} controlled)
                 return;
 
             var worldPos = EntityManager.GetComponent<TransformComponent>(controlled).WorldPosition;

Robust.Client/Placement/PlacementMode.cs

@@ -216,7 +216,7 @@ namespace Robust.Client.Placement
         {
             if (!RangeRequired)
                 return true;
-            var controlled = pManager.PlayerManager.LocalPlayer?.ControlledEntity ?? EntityUid.Invalid;
+            var controlled = pManager.PlayerManager.LocalEntity ?? EntityUid.Invalid;
             if (controlled == EntityUid.Invalid)
             {
                 return false;

Robust.Client/Player/FilterSystem.cs

@@ -10,14 +10,13 @@ namespace Robust.Client.Player
 
         public override Filter FromEntities(Filter filter, params EntityUid[] entities)
         {
-            if (_playerManager.LocalPlayer is not { } localPlayer
-                || localPlayer.Session.AttachedEntity is not {Valid: true} attachedUid)
+            if (_playerManager.LocalEntity is not {Valid: true} attachedUid)
                 return filter;
 
             foreach (var uid in entities)
             {
                 if (uid == attachedUid)
-                    filter.AddPlayer(localPlayer.Session);
+                    filter.AddPlayer(_playerManager.LocalSession!);
             }
 
             return filter;

Robust.Client/Player/PlayerManager.cs

@@ -162,11 +162,14 @@ namespace Robust.Client.Player
                 return true;
             }
 
-            if (!EntManager.EnsureComponent(uid.Value, out EyeComponent eye))
+            if (!EntManager.HasComponent<EyeComponent>(uid.Value))
             {
                 if (_client.RunLevel != ClientRunLevel.SinglePlayerGame)
                     Sawmill.Warning($"Attaching local player to an entity {EntManager.ToPrettyString(uid)} without an eye. This eye will not be netsynced and may cause issues.");
+                var eye = (EyeComponent) Factory.GetComponent(typeof(EyeComponent));
+                eye.Owner = uid.Value;
                 eye.NetSyncEnabled = false;
+                EntManager.AddComponent(uid.Value, eye);
             }
 
             Sawmill.Info($"Attaching local player to {EntManager.ToPrettyString(uid)}.");

Robust.Client/Replays/ReplayRecordingManager.cs

@@ -36,12 +36,12 @@ internal sealed class ReplayRecordingManager : SharedReplayRecordingManager
 
     private void OnRecordingStarted(MappingDataNode metadata, List<object> messages)
     {
-        if (_player.LocalPlayer == null)
+        if (_player.LocalSession == null)
             return;
 
         // Add information about the user doing the recording. This is used to set the default replay observer position
         // when playing back the replay.
-        var guid = _player.LocalPlayer.UserId.UserId.ToString();
+        var guid = _player.LocalUser.ToString();
         metadata[ReplayConstants.MetaKeyRecordedBy] = new ValueDataNode(guid);
     }
 

Robust.Client/Robust.Client.csproj

@@ -5,33 +5,33 @@
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <OutputType>WinExe</OutputType>
     <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
-    <NoWarn>NU1701</NoWarn>
+    <NoWarn>NU1701;CA1416</NoWarn>
     <OutputPath>../bin/Client</OutputPath>
     <RobustILLink>true</RobustILLink>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="DiscordRichPresence" Version="1.0.175" PrivateAssets="compile" />
-    <PackageReference Include="JetBrains.Annotations" Version="2021.3.0" PrivateAssets="All" />
-    <PackageReference Include="Microsoft.Data.Sqlite.Core" Version="6.0.9" PrivateAssets="compile" />
-    <PackageReference Include="SQLitePCLRaw.provider.sqlite3" Version="2.1.2" Condition="'$(UseSystemSqlite)' == 'True'" PrivateAssets="compile" />
-    <PackageReference Include="SQLitePCLRaw.bundle_e_sqlite3" Version="2.1.2" Condition="'$(UseSystemSqlite)' != 'True'" PrivateAssets="compile" />
-    <PackageReference Include="SpaceWizards.NFluidsynth" Version="0.1.1" PrivateAssets="compile" />
-    <PackageReference Include="SixLabors.ImageSharp" Version="2.1.3" />
-    <PackageReference Include="OpenToolkit.Graphics" Version="4.0.0-pre9.1" PrivateAssets="compile" />
-    <PackageReference Include="OpenTK.OpenAL" Version="4.7.5" PrivateAssets="compile" />
-    <PackageReference Include="SpaceWizards.SharpFont" Version="1.0.1" PrivateAssets="compile" />
-    <PackageReference Include="Robust.Natives" Version="0.1.1" />
-    <PackageReference Include="System.Numerics.Vectors" Version="4.4.0" />
-    <PackageReference Include="TerraFX.Interop.Windows" Version="10.0.20348-rc2" PrivateAssets="compile" />
-    <PackageReference Condition="'$(FullRelease)' != 'True'" Include="JetBrains.Profiler.Api" Version="1.2.0" PrivateAssets="compile" />
-    <PackageReference Include="SpaceWizards.Sodium" Version="0.2.1" PrivateAssets="compile" />
-    <PackageReference Include="Microsoft.NET.ILLink.Tasks" Version="8.0.0" />
-    <PackageReference Include="TerraFX.Interop.Xlib" Version="6.4.0" />
+    <PackageReference Include="DiscordRichPresence" PrivateAssets="compile" />
+    <PackageReference Include="JetBrains.Annotations" PrivateAssets="All" />
+    <PackageReference Include="Microsoft.Data.Sqlite.Core" PrivateAssets="compile" />
+    <PackageReference Include="SQLitePCLRaw.provider.sqlite3" Condition="'$(UseSystemSqlite)' == 'True'" PrivateAssets="compile" />
+    <PackageReference Include="SQLitePCLRaw.bundle_e_sqlite3" Condition="'$(UseSystemSqlite)' != 'True'" PrivateAssets="compile" />
+    <PackageReference Include="SpaceWizards.NFluidsynth" PrivateAssets="compile" />
+    <PackageReference Include="SixLabors.ImageSharp" />
+    <PackageReference Include="OpenToolkit.Graphics" PrivateAssets="compile" />
+    <PackageReference Include="OpenTK.OpenAL" PrivateAssets="compile" />
+    <PackageReference Include="SpaceWizards.SharpFont" PrivateAssets="compile" />
+    <PackageReference Include="Robust.Natives" />
+    <PackageReference Include="System.Numerics.Vectors"  />
+    <PackageReference Include="TerraFX.Interop.Windows" PrivateAssets="compile" />
+    <PackageReference Condition="'$(FullRelease)' != 'True'" Include="JetBrains.Profiler.Api" PrivateAssets="compile" />
+    <PackageReference Include="SpaceWizards.Sodium" PrivateAssets="compile" />
+    <PackageReference Include="Microsoft.NET.ILLink.Tasks" />
+    <PackageReference Include="TerraFX.Interop.Xlib" />
   </ItemGroup>
   <ItemGroup Condition="'$(EnableClientScripting)' == 'True'">
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Features" Version="4.0.1" PrivateAssets="compile" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Scripting" Version="4.0.1" PrivateAssets="compile" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.0.1" PrivateAssets="compile" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Features" PrivateAssets="compile" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Scripting" PrivateAssets="compile" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" PrivateAssets="compile" />
 
     <ProjectReference Include="..\Robust.Shared.Scripting\Robust.Shared.Scripting.csproj" />
   </ItemGroup>
@@ -40,7 +40,6 @@
     <ProjectReference Include="..\Lidgren.Network\Lidgren.Network.csproj" />
     <ProjectReference Include="..\OpenToolkit.GraphicsLibraryFramework\OpenToolkit.GraphicsLibraryFramework.csproj" />
     <ProjectReference Include="..\Robust.LoaderApi\Robust.LoaderApi\Robust.LoaderApi.csproj" />
-    <ProjectReference Include="..\Robust.Physics\Robust.Physics.csproj" />
     <ProjectReference Include="..\Robust.Shared.Maths\Robust.Shared.Maths.csproj" />
     <ProjectReference Include="..\Robust.Shared\Robust.Shared.csproj" />
   </ItemGroup>

Robust.Client/Upload/Commands/UploadFileCommand.cs

@@ -11,15 +11,17 @@ namespace Robust.Client.Upload.Commands;
 
 public sealed class UploadFileCommand : IConsoleCommand
 {
+    [Dependency] private readonly IConfigurationManager _cfgManager = default!;
+    [Dependency] private readonly IFileDialogManager _dialog = default!;
+    [Dependency] private readonly INetManager _netManager = default!;
+
     public string Command => "uploadfile";
     public string Description => "Uploads a resource to the server.";
     public string Help => $"{Command} [relative path for the resource]";
 
     public async void Execute(IConsoleShell shell, string argStr, string[] args)
     {
-        var cfgMan = IoCManager.Resolve<IConfigurationManager>();
-
-        if (!cfgMan.GetCVar(CVars.ResourceUploadingEnabled))
+        if (!_cfgManager.GetCVar(CVars.ResourceUploadingEnabled))
         {
             shell.WriteError("Network Resource Uploading is currently disabled by the server.");
             return;
@@ -33,10 +35,8 @@ public sealed class UploadFileCommand : IConsoleCommand
 
         var path = new ResPath(args[0]).ToRelativePath();
 
-        var dialog = IoCManager.Resolve<IFileDialogManager>();
-
         var filters = new FileDialogFilters(new FileDialogFilters.Group(path.Extension));
-        await using var file = await dialog.OpenFile(filters);
+        await using var file = await _dialog.OpenFile(filters);
 
         if (file == null)
         {
@@ -44,7 +44,7 @@ public sealed class UploadFileCommand : IConsoleCommand
             return;
         }
 
-        var sizeLimit = cfgMan.GetCVar(CVars.ResourceUploadingLimitMb);
+        var sizeLimit = _cfgManager.GetCVar(CVars.ResourceUploadingLimitMb);
 
         if (sizeLimit > 0f && file.Length * SharedNetworkResourceManager.BytesToMegabytes > sizeLimit)
         {
@@ -54,12 +54,12 @@ public sealed class UploadFileCommand : IConsoleCommand
 
         var data = file.CopyToArray();
 
-        var netManager = IoCManager.Resolve<INetManager>();
-        var msg = netManager.CreateNetMessage<NetworkResourceUploadMessage>();
+        var msg = new NetworkResourceUploadMessage
+        {
+            RelativePath = path,
+            Data = data
+        };
 
-        msg.RelativePath = path;
-        msg.Data = data;
-
-        netManager.ClientSendMessage(msg);
+        _netManager.ClientSendMessage(msg);
     }
 }

Robust.Client/Upload/Commands/UploadFolderCommand.cs

@@ -1,3 +1,4 @@
+using System;
 using System.IO;
 using Robust.Shared;
 using Robust.Shared.Configuration;
@@ -13,21 +14,20 @@ namespace Robust.Client.Upload.Commands;
 
 public sealed class UploadFolderCommand : IConsoleCommand
 {
+    [Dependency] private IResourceManager _resourceManager = default!;
+    [Dependency] private IConfigurationManager _configManager = default!;
+    [Dependency] private INetManager _netMan = default!;
+
     public string Command => "uploadfolder";
     public string Description => Loc.GetString("uploadfolder-command-description");
     public string Help => Loc.GetString("uploadfolder-command-help");
 
     private static readonly ResPath BaseUploadFolderPath = new("/UploadFolder");
 
-    [Dependency] private IResourceManager _resourceManager = default!;
-    [Dependency] private IConfigurationManager _configManager = default!;
-    [Dependency] private INetManager _netMan = default!;
-
     public async void Execute(IConsoleShell shell, string argStr, string[] args)
     {
         var fileCount = 0;
 
-
         if (!_configManager.GetCVar(CVars.ResourceUploadingEnabled))
         {
             shell.WriteError( Loc.GetString("uploadfolder-command-resource-upload-disabled"));
@@ -52,8 +52,7 @@ public sealed class UploadFolderCommand : IConsoleCommand
         //Grab all files in specified folder and upload them
         foreach (var filepath in _resourceManager.UserData.Find($"{folderPath.ToRelativePath()}/").files )
         {
-
-            await using var filestream = _resourceManager.UserData.Open(filepath,FileMode.Open);
+            await using var filestream = _resourceManager.UserData.Open(filepath, FileMode.Open);
             {
                 var sizeLimit = _configManager.GetCVar(CVars.ResourceUploadingLimitMb);
                 if (sizeLimit > 0f && filestream.Length * SharedNetworkResourceManager.BytesToMegabytes > sizeLimit)
@@ -64,9 +63,11 @@ public sealed class UploadFolderCommand : IConsoleCommand
 
                 var data = filestream.CopyToArray();
 
-                var msg = _netMan.CreateNetMessage<NetworkResourceUploadMessage>();
-                msg.RelativePath = filepath.RelativeTo(BaseUploadFolderPath);
-                msg.Data = data;
+                var msg = new NetworkResourceUploadMessage
+                {
+                    RelativePath = filepath.RelativeTo(BaseUploadFolderPath),
+                    Data = data
+                };
 
                 _netMan.ClientSendMessage(msg);
                 fileCount++;

Robust.Client/UserInterface/Control.Layout.cs

@@ -226,6 +226,10 @@ namespace Robust.Client.UserInterface
         /// <seealso cref="Rect"/>
         public UIBox2i PixelRect => UIBox2i.FromDimensions(PixelPosition, PixelSize);
 
+        public UIBox2 GlobalRect => UIBox2.FromDimensions(GlobalPosition, _size);
+
+        public UIBox2i GlobalPixelRect => UIBox2i.FromDimensions(GlobalPixelPosition, PixelSize);
+
         /// <summary>
         /// Horizontal alignment mode.
         /// This determines how the control should be laid out horizontally
@@ -464,6 +468,14 @@ namespace Robust.Client.UserInterface
             }
         }
 
+        /// <summary>
+        /// Gets the screen coordinates position relative to the control.
+        /// </summary>
+        public Vector2 GetLocalPosition(ScreenCoordinates coordinates)
+        {
+            return coordinates.Position - GlobalPixelPosition;
+        }
+
         /// <summary>
         /// Notify the layout system that this control's <see cref="Measure"/> result may have changed
         /// and must be recalculated.

Robust.Client/UserInterface/Control.cs

@@ -545,6 +545,36 @@ namespace Robust.Client.UserInterface
             Draw(renderHandle.DrawingHandleScreen);
         }
 
+        protected internal virtual void PreRenderChildren(ref ControlRenderArguments args)
+        {
+
+        }
+
+        protected internal virtual void PostRenderChildren(ref ControlRenderArguments args)
+        {
+
+        }
+
+        protected internal virtual void RenderChildOverride(ref ControlRenderArguments args, int childIndex, Vector2i position)
+        {
+            RenderControl(ref args, childIndex, position);
+        }
+
+        public ref struct ControlRenderArguments
+        {
+            public IRenderHandle Handle;
+            public ref int Total;
+            public Vector2i Position;
+            public Color Modulate;
+            public UIBox2i? ScissorBox;
+            public ref Matrix3 CoordinateTransform;
+        }
+
+        protected void RenderControl(ref ControlRenderArguments args, int childIndex, Vector2i position)
+        {
+            UserInterfaceManagerInternal.RenderControl(args.Handle, ref args.Total, GetChild(childIndex), position, args.Modulate, args.ScissorBox, args.CoordinateTransform);
+        }
+
         public void UpdateDraw()
         {
         }

Robust.Client/UserInterface/Controls/BaseButton.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using Robust.Client.Audio;
 using Robust.Client.ResourceManagement;
 using Robust.Shared.ContentPack;
@@ -37,8 +38,10 @@ namespace Robust.Client.UserInterface.Controls
             get => _group;
             set
             {
+                if (value?.InternalButtons.Contains(this) ?? false)
+                    return; // No work to do.
                 // Remove from old group.
-                _group?.Buttons.Remove(this);
+                _group?.InternalButtons.Remove(this);
 
                 _group = value;
 
@@ -47,11 +50,21 @@ namespace Robust.Client.UserInterface.Controls
                     return;
                 }
 
-                value.Buttons.Add(this);
+                value.InternalButtons.Add(this);
                 ToggleMode = true;
 
-                // Set us to pressed if we're the first button.
-                Pressed = value.Buttons.Count == 0;
+                if (value.IsNoneSetAllowed)
+                {
+                    // Still UNPRESS if there's another pressed button, but don't PRESS it otherwise.
+                    if (value.Pressed != this)
+                        _pressed = false;
+                }
+                else
+                {
+                    // Set us to pressed if we're the first button. Doesn't go through the setter to avoid setting off our own error check.
+                    _pressed = value.InternalButtons.Count == 1;
+                }
+                DrawModeChanged();
             }
         }
 
@@ -95,7 +108,7 @@ namespace Robust.Client.UserInterface.Controls
                     return;
                 }
 
-                if (!value && Group != null)
+                if (!value && Group is { IsNoneSetAllowed: false })
                 {
                     throw new InvalidOperationException("Cannot directly unset a grouped button. Set another button in the group instead.");
                 }
@@ -326,7 +339,7 @@ namespace Robust.Client.UserInterface.Controls
                 return;
             }
 
-            foreach (var button in _group.Buttons)
+            foreach (var button in _group.InternalButtons)
             {
                 if (button != this && button.Pressed)
                 {
@@ -440,6 +453,29 @@ namespace Robust.Client.UserInterface.Controls
     /// </remarks>
     public sealed class ButtonGroup
     {
-        internal readonly List<BaseButton> Buttons = new();
+        /// <summary>
+        /// Whether it is legal for this button group to have no selected button.
+        /// </summary>
+        /// <remarks>
+        /// If true, it's legal for no button in the group to be active.
+        /// This is then the initial state of a new group of buttons (no button is automatically selected),
+        /// and it becomes legal to manually clear the active button through code.
+        /// The user cannot manually unselect the active button regardless, only by selecting a difference button.
+        /// </remarks>
+        public bool IsNoneSetAllowed { get; }
+
+        /// <summary>
+        /// Create a new <see cref="ButtonGroup"/>
+        /// </summary>
+        /// <param name="isNoneSetAllowed">The value of <see cref="IsNoneSetAllowed"/> on the new button group.</param>
+        public ButtonGroup(bool isNoneSetAllowed = true)
+        {
+            IsNoneSetAllowed = isNoneSetAllowed;
+        }
+
+        internal readonly List<BaseButton> InternalButtons = new();
+        public IReadOnlyList<BaseButton> Buttons => InternalButtons;
+
+        public BaseButton? Pressed => InternalButtons.FirstOrDefault(x => x.Pressed);
     }
 }

Robust.Client/UserInterface/Controls/ItemList.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.Diagnostics.Contracts;
@@ -9,6 +9,9 @@ using Robust.Shared.Input;
 using Robust.Shared.Maths;
 using Timer = Robust.Shared.Timing.Timer;
 
+/// <summary>
+/// Represents a scrollable list of items in a user interface.
+/// </summary>
 namespace Robust.Client.UserInterface.Controls
 {
     [Virtual]
@@ -29,6 +32,10 @@ namespace Robust.Client.UserInterface.Controls
         public const string StylePropertySelectedItemBackground = "selected-item-background";
         public const string StylePropertyDisabledItemBackground = "disabled-item-background";
 
+        /// <summary>
+        /// Gets or sets the ItemSeparation of individual list items
+        /// </summary>
+        public int ItemSeparation { get; set; } = 0; // Default value is 0px
         public int Count => _itemList.Count;
         public bool IsReadOnly => false;
 
@@ -68,8 +75,10 @@ namespace Robust.Client.UserInterface.Controls
                 itemHeight += ActualItemBackground.MinimumSize.Y * UIScale;
 
                 _totalContentHeight += (int)Math.Ceiling(itemHeight);
+                _totalContentHeight += ItemSeparation;
             }
-
+            //Remove unneeded ItemSeparation on last item.
+            _totalContentHeight -= ItemSeparation;
             _scrollBar.MaxValue = Math.Max(_scrollBar.Page, _totalContentHeight);
             _updateScrollbarVisibility();
         }
@@ -390,6 +399,9 @@ namespace Robust.Client.UserInterface.Controls
                 }
 
                 offset += itemHeight;
+
+                // Add a ItemSeparation at the bottom of each item.
+                offset += ItemSeparation;
             }
         }
 
@@ -399,7 +411,7 @@ namespace Robust.Client.UserInterface.Controls
 
             var color = ActualFontColor;
             var offsetY = (int) (box.Height - font.GetHeight(UIScale)) / 2;
-            var baseLine = new Vector2i(0, offsetY + font.GetAscent(UIScale)) + box.TopLeft;
+            var baseLine = new Vector2i(5, offsetY + font.GetAscent(UIScale)) + box.TopLeft;
 
             foreach (var rune in text.EnumerateRunes())
             {

Robust.Client/UserInterface/Controls/OptionButton.cs

@@ -12,6 +12,7 @@ namespace Robust.Client.UserInterface.Controls
     public class OptionButton : ContainerButton
     {
         public const string StyleClassOptionButton = "optionButton";
+        public const string StyleClassPopup = "optionButtonPopup";
         public const string StyleClassOptionTriangle = "optionTriangle";
         public readonly ScrollContainer OptionsScroll;
 
@@ -74,7 +75,8 @@ namespace Robust.Client.UserInterface.Controls
 
             _popup = new Popup()
             {
-                Children = { OptionsScroll }
+                Children = { new PanelContainer(), OptionsScroll },
+                StyleClasses = { StyleClassPopup }
             };
             _popup.OnPopupHide += OnPopupHide;
 
@@ -99,6 +101,11 @@ namespace Robust.Client.UserInterface.Controls
             AddItem(label, id);
         }
 
+        public virtual void ButtonOverride(Button button)
+        {
+
+        }
+
         public void AddItem(string label, int? id = null)
         {
             if (id == null)
@@ -132,6 +139,8 @@ namespace Robust.Client.UserInterface.Controls
             {
                 Select(0);
             }
+
+            ButtonOverride(button);
         }
 
         private void TogglePopup(bool show)
@@ -139,6 +148,8 @@ namespace Robust.Client.UserInterface.Controls
             if (show)
             {
                 var globalPos = GlobalPosition;
+                globalPos.Y += Size.Y + 1; // Place it below us, with a safety margin.
+                globalPos.Y -= Margin.SumVertical;
                 OptionsScroll.Measure(Window?.Size ?? Vector2Helpers.Infinity);
                 var (minX, minY) = OptionsScroll.DesiredSize;
                 var box = UIBox2.FromDimensions(globalPos, new Vector2(Math.Max(minX, Width), minY));

Robust.Client/UserInterface/Controls/PanelContainer.cs

@@ -15,13 +15,13 @@ namespace Robust.Client.UserInterface.Controls
         {
             base.Draw(handle);
 
-            var style = _getStyleBox();
+            var style = GetStyleBox();
             style?.Draw(handle, PixelSizeBox, UIScale);
         }
 
         protected override Vector2 MeasureOverride(Vector2 availableSize)
         {
-            var styleSize = _getStyleBox()?.MinimumSize ?? Vector2.Zero;
+            var styleSize = GetStyleBox()?.MinimumSize ?? Vector2.Zero;
             var measureSize = Vector2.Max(availableSize - styleSize, Vector2.Zero);
             var childSize = Vector2.Zero;
             foreach (var child in Children)
@@ -36,7 +36,7 @@ namespace Robust.Client.UserInterface.Controls
         protected override Vector2 ArrangeOverride(Vector2 finalSize)
         {
             var ourSize = UIBox2.FromDimensions(Vector2.Zero, finalSize);
-            var contentBox = _getStyleBox()?.GetContentBox(ourSize, 1) ?? ourSize;
+            var contentBox = GetStyleBox()?.GetContentBox(ourSize, 1) ?? ourSize;
 
             foreach (var child in Children)
             {
@@ -47,7 +47,7 @@ namespace Robust.Client.UserInterface.Controls
         }
 
         [System.Diagnostics.Contracts.Pure]
-        private StyleBox? _getStyleBox()
+        protected StyleBox? GetStyleBox()
         {
             if (PanelOverride != null)
             {

Robust.Client/UserInterface/Controls/TextEdit.cs

@@ -90,6 +90,8 @@ public sealed class TextEdit : Control
     internal bool DebugOverlay;
     private Vector2? _lastDebugMousePos;
 
+    public event Action<TextEditEventArgs>? OnTextChanged;
+
     public TextEdit()
     {
         IoCManager.InjectDependencies(this);
@@ -315,7 +317,7 @@ public sealed class TextEdit : Control
                 if (changed)
                 {
                     _selectionStart = _cursorPosition;
-                    // OnTextChanged?.Invoke(new LineEditEventArgs(this, _text));
+                    OnTextChanged?.Invoke(new TextEditEventArgs(this, _textRope));
                     // _updatePseudoClass();
                     // OnBackspace?.Invoke(new LineEditBackspaceEventArgs(oldText, _text, cursor, selectStart));
                 }
@@ -349,7 +351,7 @@ public sealed class TextEdit : Control
                 if (changed)
                 {
                     _selectionStart = _cursorPosition;
-                    // OnTextChanged?.Invoke(new LineEditEventArgs(this, _text));
+                    OnTextChanged?.Invoke(new TextEditEventArgs(this, _textRope));
                     // _updatePseudoClass();
                 }
 
@@ -382,7 +384,10 @@ public sealed class TextEdit : Control
                 }
 
                 if (changed)
+                {
                     _selectionStart = _cursorPosition;
+                    OnTextChanged?.Invoke(new TextEditEventArgs(this, _textRope));
+                }
 
                 InvalidateHorizontalCursorPos();
                 args.Handle();
@@ -411,7 +416,10 @@ public sealed class TextEdit : Control
                 }
 
                 if (changed)
+                {
                     _selectionStart = _cursorPosition;
+                    OnTextChanged?.Invoke(new TextEditEventArgs(this, _textRope));
+                }
 
                 InvalidateHorizontalCursorPos();
                 args.Handle();
@@ -748,6 +756,7 @@ public sealed class TextEdit : Control
 
             var startPos = _cursorPosition;
             TextRope = Rope.Insert(TextRope, startPos.Index, ev.Text);
+            OnTextChanged?.Invoke(new TextEditEventArgs(this, _textRope));
 
             _selectionStart = _cursorPosition = new CursorPos(startPos.Index + startChars, LineBreakBias.Top);
             _imeData = (startPos, ev.Text.Length);
@@ -844,6 +853,7 @@ public sealed class TextEdit : Control
         var upper = SelectionUpper.Index;
 
         TextRope = Rope.ReplaceSubstring(TextRope, lower, upper - lower, text);
+        OnTextChanged?.Invoke(new TextEditEventArgs(this, _textRope));
 
         _selectionStart = _cursorPosition = new CursorPos(lower + text.Length, LineBreakBias.Top);
         // OnTextChanged?.Invoke(new LineEditEventArgs(this, _text));
@@ -1441,6 +1451,12 @@ public sealed class TextEdit : Control
         AbortIme(delete: false);
     }
 
+    public sealed class TextEditEventArgs(TextEdit control, Rope.Node textRope) : EventArgs
+    {
+        public TextEdit Control { get; } = control;
+        public Rope.Node TextRope { get; } = textRope;
+    }
+
     /// <summary>
     /// Specifies which line the cursor is positioned at when on a word-wrapping break.
     /// </summary>

Robust.Client/UserInterface/Controls/TextureRect.cs

@@ -17,6 +17,9 @@ namespace Robust.Client.UserInterface.Controls
     {
         public const string StylePropertyTexture = "texture";
         public const string StylePropertyShader = "shader";
+        public const string StylePropertyTextureStretch = "texture-stretch";
+        public const string StylePropertyTextureScale = "texture-scale";
+        public const string StylePropertyTextureSizeTarget = "texture-size-target";
 
         private bool _canShrink;
         private Texture? _texture;
@@ -29,7 +32,18 @@ namespace Robust.Client.UserInterface.Controls
         /// </summary>
         public Texture? Texture
         {
-            get => _texture;
+            get
+            {
+                if (_texture is null)
+                {
+                    if (TryGetStyleProperty(StylePropertyTexture, out Texture? texture))
+                    {
+                        return texture;
+                    }
+                }
+
+                return _texture;
+            }
             set
             {
                 var oldSize = _texture?.Size;
@@ -43,6 +57,7 @@ namespace Robust.Client.UserInterface.Controls
         }
 
         private string? _texturePath;
+        private StretchMode _stretch = StretchMode.Keep;
 
         public string TexturePath
         {
@@ -54,21 +69,45 @@ namespace Robust.Client.UserInterface.Controls
 
         }
 
+        protected override void StylePropertiesChanged()
+        {
+            base.StylePropertiesChanged();
+            InvalidateMeasure();
+        }
+
         protected override void OnThemeUpdated()
         {
             if (_texturePath != null) Texture = Theme.ResolveTexture(_texturePath);
             base.OnThemeUpdated();
         }
 
+        public Vector2 TextureSizeTarget
+        {
+            get
+            {
+                if (!TryGetStyleProperty(StylePropertyTextureSizeTarget, out Vector2 target))
+                    target = _textureScale * Texture?.Size ?? Vector2.Zero;
+
+                return target;
+            }
+        }
+
         /// <summary>
         ///     Scales the texture displayed.
         /// </summary>
         /// <remarks>
         ///     This does not apply to the following stretch modes: <see cref="StretchMode.Scale"/>.
+        ///     This additionally does not apply if a size target is set.
         /// </remarks>
         public Vector2 TextureScale
         {
-            get => _textureScale;
+            get
+            {
+                if (!TryGetStyleProperty(StylePropertyTextureScale, out Vector2 scale))
+                    scale = _textureScale;
+
+                return scale;
+            }
             set
             {
                 _textureScale = value;
@@ -96,23 +135,27 @@ namespace Robust.Client.UserInterface.Controls
         /// <summary>
         ///     Controls how the texture should be drawn if the control is larger than the size of the texture.
         /// </summary>
-        public StretchMode Stretch { get; set; } = StretchMode.Keep;
+        public StretchMode Stretch
+        {
+            get
+            {
+                if (!TryGetStyleProperty(StylePropertyTextureStretch, out StretchMode stretch))
+                    stretch = _stretch;
+                return stretch;
+            }
+            set => _stretch = value;
+        }
 
         protected internal override void Draw(DrawingHandleScreen handle)
         {
             base.Draw(handle);
 
-            var texture = _texture;
-            ShaderInstance? shader = null;
+            var texture = Texture;
 
-            if (texture == null)
-            {
-                TryGetStyleProperty(StylePropertyTexture, out texture);
-                if (texture == null)
-                {
-                    return;
-                }
-            }
+            if (texture is null)
+                return;
+
+            ShaderInstance? shader = null;
 
             if (ShaderOverride != null)
             {
@@ -167,17 +210,17 @@ namespace Robust.Client.UserInterface.Controls
                 case StretchMode.Tile:
                 // TODO: Implement Tile.
                 case StretchMode.Keep:
-                    return UIBox2.FromDimensions(Vector2.Zero, texture.Size * _textureScale * UIScale);
+                    return UIBox2.FromDimensions(Vector2.Zero, TextureSizeTarget * UIScale);
                 case StretchMode.KeepCentered:
                 {
-                    var position = (PixelSize - texture.Size * _textureScale * UIScale) / 2;
-                    return UIBox2.FromDimensions(position, texture.Size * _textureScale * UIScale);
+                    var position = (PixelSize - TextureSizeTarget) / 2;
+                    return UIBox2.FromDimensions(position, TextureSizeTarget * UIScale);
                 }
 
                 case StretchMode.KeepAspect:
                 case StretchMode.KeepAspectCentered:
                 {
-                    var (texWidth, texHeight) = texture.Size * _textureScale;
+                    var (texWidth, texHeight) = TextureSizeTarget;
                     var width = texWidth * (PixelSize.Y / texHeight);
                     var height = (float)PixelSize.Y;
                     if (width > PixelSize.X)
@@ -197,7 +240,7 @@ namespace Robust.Client.UserInterface.Controls
                 }
 
                 case StretchMode.KeepAspectCovered:
-                    var texSize = texture.Size * _textureScale;
+                    var texSize = TextureSizeTarget;
                     // Calculate the scale necessary to fit width and height to control size.
                     var (scaleX, scaleY) = PixelSize / texSize;
                     // Use whichever scale is greater.
@@ -259,19 +302,10 @@ namespace Robust.Client.UserInterface.Controls
 
         protected override Vector2 MeasureOverride(Vector2 availableSize)
         {
-            var texture = _texture;
-
-            if (texture == null)
-            {
-                TryGetStyleProperty(StylePropertyTexture, out texture);
-            }
-
-            if (texture == null || CanShrink)
-            {
+            if (CanShrink || Texture == null)
                 return Vector2.Zero;
-            }
 
-            return texture.Size * TextureScale;
+            return TextureSizeTarget;
         }
     }
 }

Robust.Client/UserInterface/CustomControls/DebugConsole.xaml.cs

@@ -39,7 +39,7 @@ namespace Robust.Client.UserInterface.CustomControls
     // And also if Update() stops firing due to an exception loop the console will still work.
     // (At least from the main thread, which is what's throwing the exceptions..)
     [GenerateTypedNameReferences]
-    public sealed partial class DebugConsole : Control, IDebugConsoleView, IPostInjectInit
+    public sealed partial class DebugConsole : Control, IDebugConsoleView
     {
         [Dependency] private readonly IClientConsoleHost _consoleHost = default!;
         [Dependency] private readonly IResourceManager _resourceManager = default!;
@@ -49,7 +49,7 @@ namespace Robust.Client.UserInterface.CustomControls
         private static readonly ResPath HistoryPath = new("/debug_console_history.json");
 
         private readonly ConcurrentQueue<FormattedMessage> _messageQueue = new();
-        private ISawmill _logger = default!;
+        private readonly ISawmill _logger;
 
         public DebugConsole()
         {
@@ -57,6 +57,8 @@ namespace Robust.Client.UserInterface.CustomControls
 
             IoCManager.InjectDependencies(this);
 
+            _logger = _logMan.GetSawmill("dbgconsole");
+
             InitCompletions();
 
             CommandBar.OnTextChanged += OnCommandChanged;
@@ -282,10 +284,5 @@ namespace Robust.Client.UserInterface.CustomControls
                 }
             });
         }
-
-        void IPostInjectInit.PostInject()
-        {
-            _logger = _logMan.GetSawmill("dbgconsole");
-        }
     }
 }

Robust.Client/UserInterface/IUserInterfaceManagerInternal.cs

@@ -61,6 +61,9 @@ namespace Robust.Client.UserInterface
         Vector2? CalcRelativeMousePositionFor(Control control, ScreenCoordinates mousePos);
 
         Color GetMainClearColor();
+
+        void RenderControl(IRenderHandle renderHandle, ref int total, Control control, Vector2i position, Color modulate,
+            UIBox2i? scissorBox, Matrix3 coordinateTransform);
     }
 }
 

Robust.Client/UserInterface/UserInterfaceManager.Layout.cs

@@ -132,9 +132,10 @@ internal sealed partial class UserInterfaceManager
             try
             {
                 var total = 0;
-                _render(renderHandle, ref total, root, Vector2i.Zero, Color.White, null);
                 var drawingHandle = renderHandle.DrawingHandleScreen;
-                drawingHandle.SetTransform(Vector2.Zero, Angle.Zero, Vector2.One);
+                drawingHandle.SetTransform(Matrix3.Identity);
+                RenderControl(renderHandle, ref total, root, Vector2i.Zero, Color.White, null, Matrix3.Identity);
+                drawingHandle.SetTransform(Matrix3.Identity);
                 OnPostDrawUIRoot?.Invoke(new PostDrawUIRootEventArgs(root, drawingHandle));
 
                 _prof.WriteValue("Controls rendered", ProfData.Int32(total));

Robust.Client/UserInterface/UserInterfaceManager.cs

@@ -75,7 +75,7 @@ namespace Robust.Client.UserInterface
 
                 foreach (var root in _roots)
                 {
-                    if (root.Stylesheet != null)
+                    if (root.Stylesheet == null)
                     {
                         root.StylesheetUpdateRecursive();
                     }
@@ -329,8 +329,8 @@ namespace Robust.Client.UserInterface
             }
         }
 
-        private void _render(IRenderHandle renderHandle, ref int total, Control control, Vector2i position, Color modulate,
-            UIBox2i? scissorBox)
+        public void RenderControl(IRenderHandle renderHandle, ref int total, Control control, Vector2i position, Color modulate,
+            UIBox2i? scissorBox, Matrix3 coordinateTransform)
         {
             if (!control.Visible)
             {
@@ -377,7 +377,10 @@ namespace Robust.Client.UserInterface
             total += 1;
 
             var handle = renderHandle.DrawingHandleScreen;
-            handle.SetTransform(position, Angle.Zero, Vector2.One);
+            var oldXform = handle.GetTransform();
+            var xform = oldXform;
+            xform.Multiply(Matrix3.CreateTransform(position, Angle.Zero, Vector2.One));
+            handle.SetTransform(xform);
             modulate *= control.Modulate;
 
             if (_rendering || control.AlwaysRender)
@@ -389,16 +392,32 @@ namespace Robust.Client.UserInterface
                 handle.Modulate = oldMod;
                 handle.UseShader(null);
             }
+            handle.SetTransform(oldXform);
+            var args = new Control.ControlRenderArguments()
+            {
+                Handle = renderHandle,
+                Total = ref total,
+                Modulate = modulate,
+                ScissorBox = scissorRegion,
+                CoordinateTransform = ref coordinateTransform
+            };
+
+            control.PreRenderChildren(ref args);
 
             foreach (var child in control.Children)
             {
-                _render(renderHandle, ref total, child, position + child.PixelPosition, modulate, scissorRegion);
+                var pos = position + (Vector2i) coordinateTransform.Transform(child.PixelPosition);
+                control.RenderChildOverride(ref args, child.GetPositionInParent(), pos);
             }
 
+            control.PostRenderChildren(ref args);
+
             if (clip)
             {
                 renderHandle.SetScissor(scissorBox);
             }
+
+            handle.SetTransform(oldXform);
         }
 
         public Color GetMainClearColor() => RootControl.ActualBgColor;

Robust.Packaging/AssetProcessing/Passes/AssetPassPackRsis.cs

@@ -4,6 +4,7 @@ using Robust.Shared.Resources;
 using Robust.Shared.Utility;
 using SixLabors.ImageSharp;
 using SixLabors.ImageSharp.Formats.Png;
+using SixLabors.ImageSharp.Formats.Png.Chunks;
 using SixLabors.ImageSharp.PixelFormats;
 
 namespace Robust.Packaging.AssetProcessing.Passes;
@@ -168,7 +169,7 @@ internal sealed class AssetPassPackRsis : AssetPass
         }
 
         var ms = new MemoryStream();
-        sheet.Metadata.GetPngMetadata().TextData.Add(new PngTextData("Description", metaJson, null, null));
+        sheet.Metadata.GetPngMetadata().TextData.Add(new PngTextData("Description", metaJson, "", ""));
         sheet.SaveAsPng(ms);
 
         sheet.Dispose();

Robust.Packaging/Robust.Packaging.csproj

@@ -10,9 +10,5 @@
     <ProjectReference Include="..\Robust.Shared\Robust.Shared.csproj" />
   </ItemGroup>
 
-  <ItemGroup>
-    <PackageReference Include="NVorbis" Version="0.10.5" />
-  </ItemGroup>
-
   <Import Project="..\MSBuild\Robust.Properties.targets" />
 </Project>

Robust.Physics/Robust.Physics.csproj

@@ -1,22 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="..\MSBuild\Robust.Engine.props" />
-  <PropertyGroup>
-
-  </PropertyGroup>
-
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
-    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-  </PropertyGroup>
-
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
-    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <DefineConstants>TRACE;RELEASE</DefineConstants>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\Robust.Shared.Maths\Robust.Shared.Maths.csproj" />
-  </ItemGroup>
-
-  <Import Project="..\MSBuild\Robust.Properties.targets" />
-</Project>

Robust.Roslyn.Shared/AttributeHelper.cs

@@ -0,0 +1,46 @@
+using System.Diagnostics.CodeAnalysis;
+using Microsoft.CodeAnalysis;
+
+namespace Robust.Roslyn.Shared;
+
+#nullable enable
+
+public static class AttributeHelper
+{
+    public static bool HasAttribute(ISymbol symbol, string attributeMetadataName, [NotNullWhen(true)] out AttributeData? matchedAttribute)
+    {
+        foreach (var attribute in symbol.GetAttributes())
+        {
+            if (attribute.AttributeClass == null)
+                continue;
+
+            if (TypeSymbolHelper.ShittyTypeMatch(attribute.AttributeClass, attributeMetadataName))
+            {
+                matchedAttribute = attribute;
+                return true;
+            }
+        }
+
+        matchedAttribute = null;
+        return false;
+    }
+
+    public static bool GetNamedArgumentBool(AttributeData data, string name, bool defaultValue)
+    {
+        foreach (var kv in data.NamedArguments)
+        {
+            if (kv.Key != name)
+                continue;
+
+            if (kv.Value.Kind != TypedConstantKind.Primitive)
+                continue;
+
+            if (kv.Value.Value is not bool value)
+                continue;
+
+            return value;
+        }
+
+        return defaultValue;
+    }
+}

Robust.Roslyn.Shared/Diagnostics.cs

@@ -1,6 +1,6 @@
 using Microsoft.CodeAnalysis;
 
-namespace Robust.Analyzers;
+namespace Robust.Roslyn.Shared;
 
 public static class Diagnostics
 {
@@ -24,6 +24,10 @@ public static class Diagnostics
     public const string IdNestedDataDefinitionPartial = "RA0018";
     public const string IdDataFieldWritable = "RA0019";
     public const string IdDataFieldPropertyWritable = "RA0020";
+    public const string IdComponentPauseNotComponent = "RA0021";
+    public const string IdComponentPauseNoFields = "RA0022";
+    public const string IdComponentPauseNoParentAttribute = "RA0023";
+    public const string IdComponentPauseWrongTypeAttribute = "RA0024";
 
     public static SuppressionDescriptor MeansImplicitAssignment =>
         new SuppressionDescriptor("RADC1000", "CS0649", "Marked as implicitly assigned.");

Robust.Roslyn.Shared/Helpers/EquatableArray{T}.cs

@@ -0,0 +1,201 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// Taken from https://github.com/CommunityToolkit/dotnet/blob/ecd1711b740f4f88d2bb943ce292ae4fc90df1bc/src/CommunityToolkit.Mvvm.SourceGenerators/Helpers/EquatableArray%7BT%7D.cs
+
+using System.Collections;
+using System.Collections.Immutable;
+using System.Diagnostics.CodeAnalysis;
+using System.Runtime.CompilerServices;
+
+namespace Robust.Roslyn.Shared.Helpers;
+
+#nullable enable
+
+/// <summary>
+/// Extensions for <see cref="EquatableArray{T}"/>.
+/// </summary>
+public static class EquatableArray
+{
+    /// <summary>
+    /// Creates an <see cref="EquatableArray{T}"/> instance from a given <see cref="ImmutableArray{T}"/>.
+    /// </summary>
+    /// <typeparam name="T">The type of items in the input array.</typeparam>
+    /// <param name="array">The input <see cref="ImmutableArray{T}"/> instance.</param>
+    /// <returns>An <see cref="EquatableArray{T}"/> instance from a given <see cref="ImmutableArray{T}"/>.</returns>
+    public static EquatableArray<T> AsEquatableArray<T>(this ImmutableArray<T> array)
+        where T : IEquatable<T>
+    {
+        return new(array);
+    }
+}
+
+/// <summary>
+/// An immutable, equatable array. This is equivalent to <see cref="ImmutableArray{T}"/> but with value equality support.
+/// </summary>
+/// <typeparam name="T">The type of values in the array.</typeparam>
+public readonly struct EquatableArray<T> : IEquatable<EquatableArray<T>>, IEnumerable<T>
+    where T : IEquatable<T>
+{
+    /// <summary>
+    /// The underlying <typeparamref name="T"/> array.
+    /// </summary>
+    private readonly T[]? array;
+
+    /// <summary>
+    /// Creates a new <see cref="EquatableArray{T}"/> instance.
+    /// </summary>
+    /// <param name="array">The input <see cref="ImmutableArray{T}"/> to wrap.</param>
+    public EquatableArray(ImmutableArray<T> array)
+    {
+        this.array = Unsafe.As<ImmutableArray<T>, T[]?>(ref array);
+    }
+
+    /// <summary>
+    /// Gets a reference to an item at a specified position within the array.
+    /// </summary>
+    /// <param name="index">The index of the item to retrieve a reference to.</param>
+    /// <returns>A reference to an item at a specified position within the array.</returns>
+    public ref readonly T this[int index]
+    {
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        get => ref AsImmutableArray().ItemRef(index);
+    }
+
+    /// <summary>
+    /// Gets a value indicating whether the current array is empty.
+    /// </summary>
+    public bool IsEmpty
+    {
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        get => AsImmutableArray().IsEmpty;
+    }
+
+    /// <sinheritdoc/>
+    public bool Equals(EquatableArray<T> array)
+    {
+        return AsSpan().SequenceEqual(array.AsSpan());
+    }
+
+    /// <sinheritdoc/>
+    public override bool Equals([NotNullWhen(true)] object? obj)
+    {
+        return obj is EquatableArray<T> array && Equals(this, array);
+    }
+
+    /// <sinheritdoc/>
+    public override int GetHashCode()
+    {
+        if (this.array is not T[] array)
+        {
+            return 0;
+        }
+
+        HashCode hashCode = default;
+
+        foreach (T item in array)
+        {
+            hashCode.Add(item);
+        }
+
+        return hashCode.ToHashCode();
+    }
+
+    /// <summary>
+    /// Gets an <see cref="ImmutableArray{T}"/> instance from the current <see cref="EquatableArray{T}"/>.
+    /// </summary>
+    /// <returns>The <see cref="ImmutableArray{T}"/> from the current <see cref="EquatableArray{T}"/>.</returns>
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public ImmutableArray<T> AsImmutableArray()
+    {
+        return Unsafe.As<T[]?, ImmutableArray<T>>(ref Unsafe.AsRef(in this.array));
+    }
+
+    /// <summary>
+    /// Creates an <see cref="EquatableArray{T}"/> instance from a given <see cref="ImmutableArray{T}"/>.
+    /// </summary>
+    /// <param name="array">The input <see cref="ImmutableArray{T}"/> instance.</param>
+    /// <returns>An <see cref="EquatableArray{T}"/> instance from a given <see cref="ImmutableArray{T}"/>.</returns>
+    public static EquatableArray<T> FromImmutableArray(ImmutableArray<T> array)
+    {
+        return new(array);
+    }
+
+    /// <summary>
+    /// Returns a <see cref="ReadOnlySpan{T}"/> wrapping the current items.
+    /// </summary>
+    /// <returns>A <see cref="ReadOnlySpan{T}"/> wrapping the current items.</returns>
+    public ReadOnlySpan<T> AsSpan()
+    {
+        return AsImmutableArray().AsSpan();
+    }
+
+    /// <summary>
+    /// Copies the contents of this <see cref="EquatableArray{T}"/> instance to a mutable array.
+    /// </summary>
+    /// <returns>The newly instantiated array.</returns>
+    public T[] ToArray()
+    {
+        return AsImmutableArray().ToArray();
+    }
+
+    /// <summary>
+    /// Gets an <see cref="ImmutableArray{T}.Enumerator"/> value to traverse items in the current array.
+    /// </summary>
+    /// <returns>An <see cref="ImmutableArray{T}.Enumerator"/> value to traverse items in the current array.</returns>
+    public ImmutableArray<T>.Enumerator GetEnumerator()
+    {
+        return AsImmutableArray().GetEnumerator();
+    }
+
+    /// <sinheritdoc/>
+    IEnumerator<T> IEnumerable<T>.GetEnumerator()
+    {
+        return ((IEnumerable<T>)AsImmutableArray()).GetEnumerator();
+    }
+
+    /// <sinheritdoc/>
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        return ((IEnumerable)AsImmutableArray()).GetEnumerator();
+    }
+
+    /// <summary>
+    /// Implicitly converts an <see cref="ImmutableArray{T}"/> to <see cref="EquatableArray{T}"/>.
+    /// </summary>
+    /// <returns>An <see cref="EquatableArray{T}"/> instance from a given <see cref="ImmutableArray{T}"/>.</returns>
+    public static implicit operator EquatableArray<T>(ImmutableArray<T> array)
+    {
+        return FromImmutableArray(array);
+    }
+
+    /// <summary>
+    /// Implicitly converts an <see cref="EquatableArray{T}"/> to <see cref="ImmutableArray{T}"/>.
+    /// </summary>
+    /// <returns>An <see cref="ImmutableArray{T}"/> instance from a given <see cref="EquatableArray{T}"/>.</returns>
+    public static implicit operator ImmutableArray<T>(EquatableArray<T> array)
+    {
+        return array.AsImmutableArray();
+    }
+
+    /// <summary>
+    /// Checks whether two <see cref="EquatableArray{T}"/> values are the same.
+    /// </summary>
+    /// <param name="left">The first <see cref="EquatableArray{T}"/> value.</param>
+    /// <param name="right">The second <see cref="EquatableArray{T}"/> value.</param>
+    /// <returns>Whether <paramref name="left"/> and <paramref name="right"/> are equal.</returns>
+    public static bool operator ==(EquatableArray<T> left, EquatableArray<T> right)
+    {
+        return left.Equals(right);
+    }
+
+    /// <summary>
+    /// Checks whether two <see cref="EquatableArray{T}"/> values are not the same.
+    /// </summary>
+    /// <param name="left">The first <see cref="EquatableArray{T}"/> value.</param>
+    /// <param name="right">The second <see cref="EquatableArray{T}"/> value.</param>
+    /// <returns>Whether <paramref name="left"/> and <paramref name="right"/> are not equal.</returns>
+    public static bool operator !=(EquatableArray<T> left, EquatableArray<T> right)
+    {
+        return !left.Equals(right);
+    }
+}

Robust.Roslyn.Shared/Helpers/HashCode.cs

@@ -0,0 +1,190 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// Taken from https://raw.githubusercontent.com/CommunityToolkit/dotnet/ecd1711b740f4f88d2bb943ce292ae4fc90df1bc/src/CommunityToolkit.Mvvm.SourceGenerators/Helpers/HashCode.cs
+
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+using System.Security.Cryptography;
+
+#pragma warning disable CS0809
+
+namespace System;
+
+#nullable enable
+
+/// <summary>
+/// A polyfill type that mirrors some methods from <see cref="HashCode"/> on .NET 6.
+/// </summary>
+public struct HashCode
+{
+    private const uint Prime1 = 2654435761U;
+    private const uint Prime2 = 2246822519U;
+    private const uint Prime3 = 3266489917U;
+    private const uint Prime4 = 668265263U;
+    private const uint Prime5 = 374761393U;
+
+    private static readonly uint seed = GenerateGlobalSeed();
+
+    private uint v1, v2, v3, v4;
+    private uint queue1, queue2, queue3;
+    private uint length;
+
+    /// <summary>
+    /// Initializes the default seed.
+    /// </summary>
+    /// <returns>A random seed.</returns>
+    private static unsafe uint GenerateGlobalSeed()
+    {
+        byte[] bytes = new byte[4];
+
+        using (RandomNumberGenerator generator = RandomNumberGenerator.Create())
+        {
+            generator.GetBytes(bytes);
+        }
+
+        return BitConverter.ToUInt32(bytes, 0);
+    }
+
+    /// <summary>
+    /// Adds a single value to the current hash.
+    /// </summary>
+    /// <typeparam name="T">The type of the value to add into the hash code.</typeparam>
+    /// <param name="value">The value to add into the hash code.</param>
+    public void Add<T>(T value)
+    {
+        Add(value?.GetHashCode() ?? 0);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    private static void Initialize(out uint v1, out uint v2, out uint v3, out uint v4)
+    {
+        v1 = seed + Prime1 + Prime2;
+        v2 = seed + Prime2;
+        v3 = seed;
+        v4 = seed - Prime1;
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    private static uint Round(uint hash, uint input)
+    {
+        return RotateLeft(hash + input * Prime2, 13) * Prime1;
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    private static uint QueueRound(uint hash, uint queuedValue)
+    {
+        return RotateLeft(hash + queuedValue * Prime3, 17) * Prime4;
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    private static uint MixState(uint v1, uint v2, uint v3, uint v4)
+    {
+        return RotateLeft(v1, 1) + RotateLeft(v2, 7) + RotateLeft(v3, 12) + RotateLeft(v4, 18);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    private static uint MixEmptyState()
+    {
+        return seed + Prime5;
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    private static uint MixFinal(uint hash)
+    {
+        hash ^= hash >> 15;
+        hash *= Prime2;
+        hash ^= hash >> 13;
+        hash *= Prime3;
+        hash ^= hash >> 16;
+
+        return hash;
+    }
+
+    private void Add(int value)
+    {
+        uint val = (uint)value;
+        uint previousLength = this.length++;
+        uint position = previousLength % 4;
+
+        if (position == 0)
+        {
+            this.queue1 = val;
+        }
+        else if (position == 1)
+        {
+            this.queue2 = val;
+        }
+        else if (position == 2)
+        {
+            this.queue3 = val;
+        }
+        else
+        {
+            if (previousLength == 3)
+            {
+                Initialize(out this.v1, out this.v2, out this.v3, out this.v4);
+            }
+
+            this.v1 = Round(this.v1, this.queue1);
+            this.v2 = Round(this.v2, this.queue2);
+            this.v3 = Round(this.v3, this.queue3);
+            this.v4 = Round(this.v4, val);
+        }
+    }
+
+    /// <summary>
+    /// Gets the resulting hashcode from the current instance.
+    /// </summary>
+    /// <returns>The resulting hashcode from the current instance.</returns>
+    public int ToHashCode()
+    {
+        uint length = this.length;
+        uint position = length % 4;
+        uint hash = length < 4 ? MixEmptyState() : MixState(this.v1, this.v2, this.v3, this.v4);
+
+        hash += length * 4;
+
+        if (position > 0)
+        {
+            hash = QueueRound(hash, this.queue1);
+
+            if (position > 1)
+            {
+                hash = QueueRound(hash, this.queue2);
+
+                if (position > 2)
+                {
+                    hash = QueueRound(hash, this.queue3);
+                }
+            }
+        }
+
+        hash = MixFinal(hash);
+
+        return (int)hash;
+    }
+
+    /// <inheritdoc/>
+    [Obsolete("HashCode is a mutable struct and should not be compared with other HashCodes. Use ToHashCode to retrieve the computed hash code.", error: true)]
+    [EditorBrowsable(EditorBrowsableState.Never)]
+    public override int GetHashCode() => throw new NotSupportedException();
+
+    /// <inheritdoc/>
+    [Obsolete("HashCode is a mutable struct and should not be compared with other HashCodes.", error: true)]
+    [EditorBrowsable(EditorBrowsableState.Never)]
+    public override bool Equals(object? obj) => throw new NotSupportedException();
+
+    /// <summary>
+    /// Rotates the specified value left by the specified number of bits.
+    /// Similar in behavior to the x86 instruction ROL.
+    /// </summary>
+    /// <param name="value">The value to rotate.</param>
+    /// <param name="offset">The number of bits to rotate by.
+    /// Any value outside the range [0..31] is treated as congruent mod 32.</param>
+    /// <returns>The rotated value.</returns>
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    private static uint RotateLeft(uint value, int offset)
+    {
+        return (value << offset) | (value >> (32 - offset));
+    }
+}

Robust.Roslyn.Shared/PartialTypeHelper.cs

@@ -0,0 +1,121 @@
+using System.Collections.Immutable;
+using System.Text;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Robust.Roslyn.Shared.Helpers;
+
+namespace Robust.Roslyn.Shared;
+
+#nullable enable
+
+/// <summary>
+/// All the information to make a partial type alternative for a type.
+/// </summary>
+public sealed record PartialTypeInfo(
+    string? Namespace,
+    string Name,
+    string DisplayName,
+    EquatableArray<string> TypeParameterNames,
+    bool IsValid,
+    Location SyntaxLocation,
+    Accessibility Accessibility,
+    TypeKind Kind,
+    bool IsRecord,
+    bool IsAbstract)
+{
+    public static PartialTypeInfo FromSymbol(INamedTypeSymbol symbol, TypeDeclarationSyntax syntax)
+    {
+        var typeParameters = ImmutableArray<string>.Empty;
+        if (symbol.TypeParameters.Length > 0)
+        {
+            var builder = ImmutableArray.CreateBuilder<string>(symbol.TypeParameters.Length);
+            foreach (var typeParameter in symbol.TypeParameters)
+            {
+                builder.Add(typeParameter.Name);
+            }
+
+            typeParameters = builder.MoveToImmutable();
+        }
+
+        return new PartialTypeInfo(
+            symbol.ContainingNamespace.IsGlobalNamespace ? null : symbol.ContainingNamespace.ToDisplayString(),
+            symbol.Name,
+            symbol.ToDisplayString(),
+            typeParameters,
+            syntax.Modifiers.Any(x => x.IsKind(SyntaxKind.PartialKeyword)),
+            syntax.Keyword.GetLocation(),
+            symbol.DeclaredAccessibility,
+            symbol.TypeKind,
+            symbol.IsRecord,
+            symbol.IsAbstract);
+    }
+
+    public bool CheckPartialDiagnostic(SourceProductionContext context, DiagnosticDescriptor diagnostic)
+    {
+        if (!IsValid)
+        {
+            context.ReportDiagnostic(Diagnostic.Create(diagnostic, SyntaxLocation, DisplayName));
+            return true;
+        }
+
+        return false;
+    }
+
+    public string GetGeneratedFileName()
+    {
+        var name = Namespace == null ? Name : $"{Namespace}.{Name}";
+        if (TypeParameterNames.AsImmutableArray().Length > 0)
+            name += $"`{TypeParameterNames.AsImmutableArray().Length}";
+
+        name += ".g.cs";
+
+        return name;
+    }
+
+    public void WriteHeader(StringBuilder builder)
+    {
+        if (Namespace != null)
+            builder.AppendLine($"namespace {Namespace};\n");
+
+        // TODO: Nested classes
+
+        var access = Accessibility switch
+        {
+            Accessibility.Private => "private",
+            Accessibility.ProtectedAndInternal => "private protected",
+            Accessibility.ProtectedOrInternal => "protected internal",
+            Accessibility.Protected => "protected",
+            Accessibility.Internal => "internal",
+            _ => "public"
+        };
+
+        string keyword;
+        if (Kind == TypeKind.Interface)
+        {
+            keyword = "interface";
+        }
+        else
+        {
+            if (IsRecord)
+            {
+                keyword = Kind == TypeKind.Struct ? "record struct" : "record";
+            }
+            else
+            {
+                keyword = Kind == TypeKind.Struct ? "struct" : "class";
+            }
+        }
+
+        builder.Append($"{access} {(IsAbstract ? "abstract " : "")}partial {keyword} {Name}");
+        if (TypeParameterNames.AsSpan().Length > 0)
+        {
+            builder.Append($"<{string.Join(", ", TypeParameterNames.AsImmutableArray())}>");
+        }
+    }
+
+    public void WriteFooter(StringBuilder builder)
+    {
+        // TODO: Nested classes
+    }
+}

Robust.Roslyn.Shared/Robust.Roslyn.Shared.props

@@ -0,0 +1,38 @@
+<Project>
+  <!--
+  I wanted to make a Robust.Roslyn.Shared library project,
+  but doing that causes various random library load failures in practice.
+
+  Instead, you'll get this vomit. Enjoy.
+  -->
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+    <LangVersion>12</LangVersion>
+    <Nullable>enable</Nullable>
+    <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
+    <EnforceExtendedAnalyzerRules>true</EnforceExtendedAnalyzerRules>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <PolySharpIncludeGeneratedTypes>System.Index;System.Diagnostics.CodeAnalysis.NotNullWhenAttribute;System.Runtime.CompilerServices.IsExternalInit;System.Diagnostics.CodeAnalysis.DoesNotReturnAttribute</PolySharpIncludeGeneratedTypes>
+    <NoWarn>RS2008</NoWarn>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CodeAnalysis.Common" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.Common" />
+
+    <PackageReference Include="PolySharp">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <Compile Include="..\Robust.Roslyn.Shared\**\*.cs">
+      <Link>Robust.Roslyn.Shared\%(RecursiveDir)%(Filename)%(Extension)</Link>
+    </Compile>
+    <Compile Remove="..\Robust.Roslyn.Shared\obj\**\*.cs" />
+  </ItemGroup>
+</Project>

Robust.Roslyn.Shared/TypeSymbolHelper.cs

@@ -0,0 +1,28 @@
+using Microsoft.CodeAnalysis;
+
+namespace Robust.Roslyn.Shared;
+
+#nullable enable
+
+public static class TypeSymbolHelper
+{
+    public static bool ShittyTypeMatch(INamedTypeSymbol type, string attributeMetadataName)
+    {
+        // Doing it like this only allocates when the type actually matches, which is good enough for me right now.
+        if (!attributeMetadataName.EndsWith(type.Name))
+            return false;
+
+        return type.ToDisplayString() == attributeMetadataName;
+    }
+
+    public static bool ImplementsInterface(INamedTypeSymbol type, string interfaceTypeName)
+    {
+        foreach (var interfaceType in type.AllInterfaces)
+        {
+            if (ShittyTypeMatch(interfaceType, interfaceTypeName))
+                return true;
+        }
+
+        return false;
+    }
+}

Robust.Serialization.Generator/ComponentPauseGenerator.cs

@@ -0,0 +1,252 @@
+using System.Collections.Immutable;
+using System.Text;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Robust.Roslyn.Shared;
+using Robust.Roslyn.Shared.Helpers;
+
+namespace Robust.Serialization.Generator;
+
+/// <summary>
+/// Automatically generates implementations for handling timer unpausing.
+/// </summary>
+[Generator(LanguageNames.CSharp)]
+public sealed class ComponentPauseGenerator : IIncrementalGenerator
+{
+    private const string AutoGenerateComponentPauseAttributeName = "Robust.Shared.Analyzers.AutoGenerateComponentPauseAttribute";
+    private const string AutoPausedFieldAttributeName = "Robust.Shared.Analyzers.AutoPausedFieldAttribute";
+    private const string AutoNetworkFieldAttributeName = "Robust.Shared.Analyzers.AutoNetworkedFieldAttribute";
+    // ReSharper disable once InconsistentNaming
+    private const string IComponentTypeName = "Robust.Shared.GameObjects.IComponent";
+
+    private static readonly DiagnosticDescriptor NotComponentDiagnostic = new(
+        Diagnostics.IdComponentPauseNotComponent,
+        "Class must be an IComponent to use AutoGenerateComponentPause",
+        "Class '{0}' must implement IComponent to be used with [AutoGenerateComponentPause]",
+        "Usage",
+        DiagnosticSeverity.Error,
+        true);
+
+    private static readonly DiagnosticDescriptor NoFieldsDiagnostic = new(
+        Diagnostics.IdComponentPauseNoFields,
+        "AutoGenerateComponentPause has no fields",
+        "Class '{0}' has [AutoGenerateComponentPause] but has no fields or properties with [AutoPausedField]",
+        "Usage",
+        DiagnosticSeverity.Warning,
+        true);
+
+    private static readonly DiagnosticDescriptor NoParentAttributeDiagnostic = new(
+        Diagnostics.IdComponentPauseNoParentAttribute,
+        "AutoPausedField on type of field without AutoGenerateComponentPause",
+        "Field '{0}' has [AutoPausedField] but its containing type does not have [AutoGenerateComponentPause]",
+        "Usage",
+        DiagnosticSeverity.Error,
+        true);
+
+    private static readonly DiagnosticDescriptor WrongTypeAttributeDiagnostic = new(
+        Diagnostics.IdComponentPauseWrongTypeAttribute,
+        "AutoPausedField has wrong type",
+        "Field '{0}' has [AutoPausedField] but is not of type TimeSpan",
+        "Usage",
+        DiagnosticSeverity.Error,
+        true);
+
+    public void Initialize(IncrementalGeneratorInitializationContext context)
+    {
+        var componentInfos = context.SyntaxProvider.ForAttributeWithMetadataName(
+            AutoGenerateComponentPauseAttributeName,
+            (syntaxNode, _) => syntaxNode is TypeDeclarationSyntax,
+            (syntaxContext, _) =>
+            {
+                var symbol = (INamedTypeSymbol)syntaxContext.TargetSymbol;
+
+                var typeDeclarationSyntax = (TypeDeclarationSyntax) syntaxContext.TargetNode;
+                var partialTypeInfo = PartialTypeInfo.FromSymbol(
+                    symbol,
+                    typeDeclarationSyntax);
+
+                var dirty = AttributeHelper.GetNamedArgumentBool(syntaxContext.Attributes[0], "Dirty", false);
+
+                var fieldBuilder = ImmutableArray.CreateBuilder<FieldInfo>();
+                foreach (var member in symbol.GetMembers())
+                {
+                    if (!AttributeHelper.HasAttribute(member, AutoPausedFieldAttributeName, out var _))
+                        continue;
+
+                    var type = member switch
+                    {
+                        IPropertySymbol property => property.Type,
+                        IFieldSymbol field => field.Type,
+                        _ => null
+                    };
+
+                    if (type is not INamedTypeSymbol namedType)
+                        continue;
+
+                    var invalid = false;
+                    var nullable = false;
+                    if (namedType.Name != "TimeSpan")
+                    {
+                        if (namedType is { Name: "Nullable", TypeArguments: [{Name: "TimeSpan"}] })
+                        {
+                            nullable = true;
+                        }
+                        else
+                        {
+                            invalid = true;
+                        }
+                    }
+
+                    // If any pause field has [AutoNetworkedField], automatically mark it to dirty on unpause.
+                    if (AttributeHelper.HasAttribute(member, AutoNetworkFieldAttributeName, out var _))
+                        dirty = true;
+
+                    fieldBuilder.Add(new FieldInfo(member.Name, nullable, invalid, member.Locations[0]));
+                }
+
+                return new ComponentInfo(
+                    partialTypeInfo,
+                    EquatableArray<FieldInfo>.FromImmutableArray(fieldBuilder.ToImmutable()),
+                    dirty,
+                    !TypeSymbolHelper.ImplementsInterface(symbol, IComponentTypeName),
+                    typeDeclarationSyntax.Identifier.GetLocation());
+            });
+
+        context.RegisterImplementationSourceOutput(componentInfos, static (productionContext, info) =>
+        {
+            if (info.NotComponent)
+            {
+                productionContext.ReportDiagnostic(Diagnostic.Create(
+                    NotComponentDiagnostic,
+                    info.Location,
+                    info.PartialTypeInfo.Name));
+                return;
+            }
+
+            // Component always have to be partial anyways due to the serialization generator.
+            // So I can't be arsed to define a diagnostic for this.
+            if (!info.PartialTypeInfo.IsValid)
+                return;
+
+            if (info.Fields.AsImmutableArray().Length == 0)
+            {
+                productionContext.ReportDiagnostic(Diagnostic.Create(
+                    NoFieldsDiagnostic,
+                    info.Location,
+                    info.PartialTypeInfo.Name));
+                return;
+            }
+
+            var builder = new StringBuilder();
+
+            builder.AppendLine("""
+                // <auto-generated />
+
+                using Robust.Shared.GameObjects;
+
+                """);
+
+            info.PartialTypeInfo.WriteHeader(builder);
+
+            builder.AppendLine();
+            builder.AppendLine("{");
+
+            builder.AppendLine($$"""
+                [RobustAutoGenerated]
+                public sealed class {{info.PartialTypeInfo.Name}}_AutoPauseSystem : EntitySystem
+                {
+                    public override void Initialize()
+                    {
+                        SubscribeLocalEvent<{{info.PartialTypeInfo.Name}}, EntityUnpausedEvent>(OnEntityUnpaused);
+                    }
+
+                    private void OnEntityUnpaused(EntityUid uid, {{info.PartialTypeInfo.Name}} component, ref EntityUnpausedEvent args)
+                    {
+                """);
+
+            var anyValidField = false;
+            foreach (var field in info.Fields)
+            {
+                if (field.Invalid)
+                {
+                    productionContext.ReportDiagnostic(Diagnostic.Create(WrongTypeAttributeDiagnostic, field.Location));
+                    continue;
+                }
+
+                if (field.Nullable)
+                {
+                    builder.AppendLine($"""
+                                if (component.{field.Name}.HasValue)
+                                    component.{field.Name} = component.{field.Name}.Value + args.PausedTime;
+                        """);
+                }
+                else
+                {
+                    builder.AppendLine($"        component.{field.Name} += args.PausedTime;");
+                }
+
+                anyValidField = true;
+            }
+
+            if (!anyValidField)
+                return;
+
+            if (info.Dirty)
+                builder.AppendLine("        Dirty(uid, component);");
+
+            builder.AppendLine("""
+                    }
+                }
+                """);
+
+            builder.AppendLine("}");
+
+            info.PartialTypeInfo.WriteFooter(builder);
+
+            productionContext.AddSource(info.PartialTypeInfo.GetGeneratedFileName(), builder.ToString());
+        });
+
+        // Code to report diagnostic for fields that have it but don't have the attribute on the parent.
+        var allFields = context.SyntaxProvider.ForAttributeWithMetadataName(
+            AutoPausedFieldAttributeName,
+            (syntaxNode, _) => syntaxNode is VariableDeclaratorSyntax or PropertyDeclarationSyntax,
+            (syntaxContext, _) =>
+            {
+                var errorTarget = syntaxContext.TargetNode is PropertyDeclarationSyntax prop
+                    ? prop.Identifier.GetLocation()
+                    : syntaxContext.TargetNode.GetLocation();
+                return new AllFieldInfo(
+                    syntaxContext.TargetSymbol.Name,
+                    syntaxContext.TargetSymbol.ContainingType.ToDisplayString(),
+                    errorTarget);
+            });
+
+        var allComponentsTogether = componentInfos.Collect();
+        var allFieldsTogether = allFields.Collect();
+        var componentFieldJoin = allFieldsTogether.Combine(allComponentsTogether);
+
+        context.RegisterImplementationSourceOutput(componentFieldJoin, (productionContext, info) =>
+        {
+            var componentsByName = new HashSet<string>(info.Right.Select(x => x.PartialTypeInfo.DisplayName));
+            foreach (var field in info.Left)
+            {
+                if (!componentsByName.Contains(field.ParentDisplayName))
+                {
+                    productionContext.ReportDiagnostic(
+                        Diagnostic.Create(NoParentAttributeDiagnostic, field.Location, field.Name));
+                }
+            }
+        });
+    }
+
+    public sealed record ComponentInfo(
+        PartialTypeInfo PartialTypeInfo,
+        EquatableArray<FieldInfo> Fields,
+        bool Dirty,
+        bool NotComponent,
+        Location Location);
+
+    public sealed record FieldInfo(string Name, bool Nullable, bool Invalid, Location Location);
+
+    public sealed record AllFieldInfo(string Name, string ParentDisplayName, Location Location);
+}

Robust.Serialization.Generator/Properties/launchSettings.json

@@ -0,0 +1,9 @@
+{
+    "$schema": "http://json.schemastore.org/launchsettings.json",
+    "profiles": {
+        "Generators": {
+            "commandName": "DebugRoslynComponent",
+            "targetProject": "../../Content.Shared/Content.Shared.csproj"
+        }
+    }
+}

Robust.Serialization.Generator/Robust.Serialization.Generator.csproj

@@ -1,15 +1,5 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
-  <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
-    <LangVersion>11</LangVersion>
-    <Nullable>enable</Nullable>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.Common" Version="4.4.0" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.4.0" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.Common" Version="4.4.0" />
-  </ItemGroup>
+  <Import Project="../Robust.Roslyn.Shared/Robust.Roslyn.Shared.props" />
 
 </Project>