Allow NotImplementedException in sandbox.

1. Add XAML namespaces https://spacestation14.io with Avalonia hacks.
2. Make markup extensions work with Avalonia hacks.
3. Add LocExtension for localized strings.
4. Add Vector2 parsing type converter to XAML compilation.
5. Make SS14Window better thanks to these improvements.

.github/workflows/codeql-analysis.yml

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

MSBuild/Robust.Analyzers.targets

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

MSBuild/Robust.Engine.targets

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

MSBuild/XamlIL.targets

@@ -1,24 +1,65 @@
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="12.0">
+  <PropertyGroup>
+    <!-- Avoid MSBuild adding a None entry for XAML files because they'd show up TWICE in the project view. -->
+    <DefaultItemExcludes>**/*.xaml</DefaultItemExcludes>
+    <RobustUseExternalMSBuild>true</RobustUseExternalMSBuild>
+    <_RobustUseExternalMSBuild>$(RobustUseExternalMSBuild)</_RobustUseExternalMSBuild>
+    <_RobustUseExternalMSBuild Condition="'$(_RobustForceInternalMSBuild)' == 'true'">false</_RobustUseExternalMSBuild>
+  </PropertyGroup>
   <ItemGroup>
     <Compile Update="**\*.xaml.cs">
       <DependentUpon>%(Filename)</DependentUpon>
     </Compile>
-    <EmbeddedResource Include="**\*.xaml" />
-    <AdditionalFiles Include="**\*.xaml" />
+    <EmbeddedResource Include="**\*.xaml"/>
+    <AdditionalFiles Include="**\*.xaml"/>
   </ItemGroup>
 
   <ItemGroup>
-    <ProjectReference Include="$(MSBuildThisFileDirectory)\..\Robust.Client.NameGenerator\Robust.Client.NameGenerator.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" />
-    <ProjectReference Include="$(MSBuildThisFileDirectory)\..\Robust.Client.Injectors\Robust.Client.Injectors.csproj" ReferenceOutputAssembly="false" />
+    <ProjectReference Include="$(MSBuildThisFileDirectory)\..\Robust.Client.NameGenerator\Robust.Client.NameGenerator.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false"/>
+    <ProjectReference Include="$(MSBuildThisFileDirectory)\..\Robust.Client.Injectors\Robust.Client.Injectors.csproj" ReferenceOutputAssembly="false"/>
   </ItemGroup>
 
-  <UsingTask TaskName="CompileRobustXamlTask" AssemblyFile="$(MSBuildThisFileDirectory)\..\Robust.Client.Injectors\bin\$(Configuration)\net5.0\Robust.Client.Injectors.dll" />
-  <Target Name="CompileRobustXaml" AfterTargets="AfterCompile">
+  <UsingTask
+    Condition="'$(_RobustUseExternalMSBuild)' != 'true' And $(DesignTimeBuild) != true"
+    TaskName="CompileRobustXamlTask"
+    AssemblyFile="$(MSBuildThisFileDirectory)\..\Robust.Client.Injectors\bin\$(Configuration)\netstandard2.0\Robust.Client.Injectors.dll"/>
+  <Target
+    Name="CompileRobustXaml"
+    Condition="Exists('@(IntermediateAssembly)')"
+    AfterTargets="AfterCompile"
+    Inputs="@(IntermediateAssembly);@(ReferencePathWithRefAssemblies)"
+    Outputs="$(IntermediateOutputPath)XAML/doot">
     <PropertyGroup>
       <RobustXamlReferencesTemporaryFilePath Condition="'$(RobustXamlReferencesTemporaryFilePath)' == ''">$(IntermediateOutputPath)XAML/references</RobustXamlReferencesTemporaryFilePath>
       <RobustXamlOriginalCopyFilePath Condition="'$(RobustXamlOriginalCopyFilePath)' == ''">$(IntermediateOutputPath)XAML/original.dll</RobustXamlOriginalCopyFilePath>
     </PropertyGroup>
-    <WriteLinesToFile File="$(RobustXamlReferencesTemporaryFilePath)" Lines="@(ReferencePathWithRefAssemblies)" Overwrite="true" />
-    <CompileRobustXamlTask AssemblyFile="@(IntermediateAssembly)" ReferencesFilePath="$(RobustXamlReferencesTemporaryFilePath)" OriginalCopyPath="$(RobustXamlOriginalCopyFilePath)" ProjectDirectory="$(MSBuildProjectDirectory)" AssemblyOriginatorKeyFile="$(AssemblyOriginatorKeyFile)" SignAssembly="$(SignAssembly)" DelaySign="$(DelaySign)" />
+    <WriteLinesToFile
+      Condition="'$(_RobustForceInternalMSBuild)' != 'true'"
+      File="$(RobustXamlReferencesTemporaryFilePath)"
+      Lines="@(ReferencePathWithRefAssemblies)"
+      Overwrite="true"/>
+
+    <!--
+    UpdateBuildIndicator is done so that we can use MSBuild Inputs and Outputs on the target
+    to avoid unecessary execution of this target
+    Saves compile time if e.g. ONLY Robust.Client changes (Content.Client doesn't have to re-xaml).
+    -->
+    <CompileRobustXamlTask
+      Condition="'$(_RobustUseExternalMSBuild)' != 'true'"
+      AssemblyFile="@(IntermediateAssembly)"
+      ReferencesFilePath="$(RobustXamlReferencesTemporaryFilePath)"
+      OriginalCopyPath="$(RobustXamlOriginalCopyFilePath)"
+      ProjectDirectory="$(MSBuildProjectDirectory)"
+      AssemblyOriginatorKeyFile="$(AssemblyOriginatorKeyFile)"
+      SignAssembly="$(SignAssembly)"
+      DelaySign="$(DelaySign)"
+      UpdateBuildIndicator="$(IntermediateOutputPath)XAML/doot"/>
+
+    <PropertyGroup>
+      <DOTNET_HOST_PATH Condition="'$(DOTNET_HOST_PATH)' == ''">dotnet</DOTNET_HOST_PATH>
+    </PropertyGroup>
+    <Exec
+      Condition="'$(_RobustUseExternalMSBuild)' == 'true'"
+      Command="&quot;$(DOTNET_HOST_PATH)&quot; msbuild /nodereuse:false $(MSBuildProjectFile) /t:CompileRobustXaml /p:_RobustForceInternalMSBuild=true /p:Configuration=$(Configuration) /p:RuntimeIdentifier=$(RuntimeIdentifier) /p:TargetFramework=$(TargetFramework) /p:BuildProjectReferences=false"/>
   </Target>
 </Project>

OpenToolkit.GraphicsLibraryFramework/GLFWNative.cs

@@ -17,6 +17,7 @@ namespace OpenToolkit.GraphicsLibraryFramework
             // On net472, we rely on Mono's DllMap for this. See the .dll.config file.
             NativeLibrary.SetDllImportResolver(typeof(GLFWNative).Assembly, (name, assembly, path) =>
             {
+                // Please keep in sync with what Robust.Shared/DllMapHelper.cs does.
                 if (name != "glfw3.dll")
                 {
                     return IntPtr.Zero;

Robust.Analyzers/ExplicitInterfaceAnalyzer.cs

@@ -0,0 +1,92 @@
+using System.Collections.Generic;
+using System.Collections.Immutable;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CodeActions;
+using Microsoft.CodeAnalysis.CodeFixes;
+using Microsoft.CodeAnalysis.CSharp;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Microsoft.CodeAnalysis.Diagnostics;
+using Document = Microsoft.CodeAnalysis.Document;
+
+namespace Robust.Analyzers
+{
+    [DiagnosticAnalyzer(LanguageNames.CSharp)]
+    public class ExplicitInterfaceAnalyzer : DiagnosticAnalyzer
+    {
+        public readonly SyntaxKind[] ExcludedModifiers =
+        {
+            SyntaxKind.VirtualKeyword,
+            SyntaxKind.AbstractKeyword,
+            SyntaxKind.OverrideKeyword
+        };
+
+        public const string DiagnosticId = "RA0000";
+
+        private const string Title = "No explicit interface specified";
+        private const string MessageFormat = "No explicit interface specified";
+        private const string Description = "Make sure to specify the interface in your method-declaration.";
+        private const string Category = "Usage";
+
+        [SuppressMessage("ReSharper", "RS2008")] private static readonly DiagnosticDescriptor Rule = new DiagnosticDescriptor(DiagnosticId, Title, MessageFormat, Category, DiagnosticSeverity.Warning, isEnabledByDefault: true, description: Description);
+
+        private const string RequiresExplicitImplementationAttributeMetadataName =
+            "Robust.Shared.Analyzers.RequiresExplicitImplementationAttribute";
+
+        public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics => ImmutableArray.Create(Rule);
+
+        public override void Initialize(AnalysisContext context)
+        {
+            context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.Analyze | GeneratedCodeAnalysisFlags.None);
+            context.EnableConcurrentExecution();
+            context.RegisterSyntaxNodeAction(AnalyzeNode, SyntaxKind.MethodDeclaration);
+            context.RegisterSyntaxNodeAction(AnalyzeNode, SyntaxKind.PropertyDeclaration);
+        }
+
+        private void AnalyzeNode(SyntaxNodeAnalysisContext context)
+        {
+            ISymbol symbol;
+            Location location;
+            switch (context.Node)
+            {
+                //we already have a explicit interface specified, no need to check further
+                case MethodDeclarationSyntax methodDecl when methodDecl.ExplicitInterfaceSpecifier != null || methodDecl.Modifiers.Any(m => ExcludedModifiers.Contains(m.Kind())):
+                    return;
+                case PropertyDeclarationSyntax propertyDecl when propertyDecl.ExplicitInterfaceSpecifier != null || propertyDecl.Modifiers.Any(m => ExcludedModifiers.Contains(m.Kind())):
+                    return;
+
+                case MethodDeclarationSyntax methodDecl:
+                    symbol = context.SemanticModel.GetDeclaredSymbol(methodDecl);
+                    location = methodDecl.Identifier.GetLocation();
+                    break;
+                case PropertyDeclarationSyntax propertyDecl:
+                    symbol = context.SemanticModel.GetDeclaredSymbol(propertyDecl);
+                    location = propertyDecl.Identifier.GetLocation();
+                    break;
+
+                default:
+                    return;
+            }
+
+            var attrSymbol = context.Compilation.GetTypeByMetadataName(RequiresExplicitImplementationAttributeMetadataName);
+
+            var isInterfaceMember = symbol?.ContainingType.AllInterfaces.Any(
+                i =>
+                    i.GetMembers().Any(m => SymbolEqualityComparer.Default.Equals(symbol, symbol.ContainingType.FindImplementationForInterfaceMember(m)))
+                    && i.GetAttributes().Any(a => SymbolEqualityComparer.Default.Equals(a.AttributeClass, attrSymbol))
+            ) ?? false;
+
+            if (isInterfaceMember)
+            {
+                //we do not have an explicit interface specified. bad!
+                var diagnostic = Diagnostic.Create(
+                    Rule,
+                    location);
+                context.ReportDiagnostic(diagnostic);
+            }
+        }
+    }
+}

Robust.Analyzers/Robust.Analyzers.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="3.8.0" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.2" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.Common" Version="3.8.0" />
+  </ItemGroup>
+
+</Project>

Robust.Analyzers/SerializableAnalyzer.cs

@@ -0,0 +1,150 @@
+using System.Collections.Generic;
+using System.Collections.Immutable;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CodeActions;
+using Microsoft.CodeAnalysis.CodeFixes;
+using Microsoft.CodeAnalysis.CSharp;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Microsoft.CodeAnalysis.Diagnostics;
+
+namespace Robust.Analyzers
+{
+    [DiagnosticAnalyzer(LanguageNames.CSharp)]
+    public class SerializableAnalyzer : DiagnosticAnalyzer
+    {
+        // Metadata of the analyzer
+        public const string DiagnosticId = "RA0001";
+
+        // You could use LocalizedString but it's a little more complicated for this sample
+        private const string Title = "Class not marked as (Net)Serializable";
+        private const string MessageFormat = "Class not marked as (Net)Serializable";
+        private const string Description = "The class should be marked as (Net)Serializable.";
+        private const string Category = "Usage";
+
+        private const string RequiresSerializableAttributeMetadataName = "Robust.Shared.Analyzers.RequiresSerializableAttribute";
+        private const string SerializableAttributeMetadataName = "System.SerializableAttribute";
+        private const string NetSerializableAttributeMetadataName = "Robust.Shared.Serialization.NetSerializableAttribute";
+
+        [SuppressMessage("ReSharper", "RS2008")] private static readonly DiagnosticDescriptor Rule = new DiagnosticDescriptor(DiagnosticId, Title, MessageFormat, Category, DiagnosticSeverity.Warning, isEnabledByDefault: true, description: Description);
+
+        public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics => ImmutableArray.Create(Rule);
+
+        public override void Initialize(AnalysisContext context)
+        {
+            context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.Analyze | GeneratedCodeAnalysisFlags.None);
+            context.EnableConcurrentExecution();
+            context.RegisterSyntaxNodeAction(AnalyzeNode, SyntaxKind.ClassDeclaration);
+        }
+
+        private bool Marked(INamedTypeSymbol namedTypeSymbol, INamedTypeSymbol attrSymbol)
+        {
+            if (namedTypeSymbol == null) return false;
+            if (namedTypeSymbol.GetAttributes()
+                .Any(a => SymbolEqualityComparer.Default.Equals(a.AttributeClass, attrSymbol))) return true;
+            return Marked(namedTypeSymbol.BaseType, attrSymbol);
+        }
+
+        private void AnalyzeNode(SyntaxNodeAnalysisContext context)
+        {
+            var attrSymbol = context.Compilation.GetTypeByMetadataName(RequiresSerializableAttributeMetadataName);
+            var classDecl = (ClassDeclarationSyntax) context.Node;
+            var classSymbol = context.SemanticModel.GetDeclaredSymbol(classDecl);
+            if (classSymbol == null) return;
+
+            if (Marked(classSymbol, attrSymbol))
+            {
+                var attributes = classSymbol.GetAttributes();
+                var serAttr = context.Compilation.GetTypeByMetadataName(SerializableAttributeMetadataName);
+                var netSerAttr = context.Compilation.GetTypeByMetadataName(NetSerializableAttributeMetadataName);
+
+                var hasSerAttr = attributes.Any(a => SymbolEqualityComparer.Default.Equals(a.AttributeClass, serAttr));
+                var hasNetSerAttr =
+                    attributes.Any(a => SymbolEqualityComparer.Default.Equals(a.AttributeClass, netSerAttr));
+
+                if (!hasSerAttr || !hasNetSerAttr)
+                {
+                    var requiredAttributes = new List<string>();
+                    if(!hasSerAttr) requiredAttributes.Add(SerializableAttributeMetadataName);
+                    if(!hasNetSerAttr) requiredAttributes.Add(NetSerializableAttributeMetadataName);
+
+                    context.ReportDiagnostic(
+                        Diagnostic.Create(
+                            Rule,
+                            classDecl.Identifier.GetLocation(),
+                            ImmutableDictionary.CreateRange(new Dictionary<string, string>()
+                            {
+                                {
+                                    "requiredAttributes", string.Join(",", requiredAttributes)
+                                }
+                            })));
+                }
+            }
+        }
+    }
+
+    [ExportCodeFixProvider(LanguageNames.CSharp)]
+    public class SerializableCodeFixProvider : CodeFixProvider
+    {
+        private const string Title = "Annotate class as (Net)Serializable.";
+
+        public override async Task RegisterCodeFixesAsync(CodeFixContext context)
+        {
+            var root = await context.Document.GetSyntaxRootAsync(context.CancellationToken);
+
+            foreach (var diagnostic in context.Diagnostics)
+            {
+                var span = diagnostic.Location.SourceSpan;
+                var classDecl = root.FindToken(span.Start).Parent.AncestorsAndSelf().OfType<ClassDeclarationSyntax>().First();
+
+                if(!diagnostic.Properties.TryGetValue("requiredAttributes", out var requiredAttributes)) return;
+
+                context.RegisterCodeFix(
+                    CodeAction.Create(
+                        Title,
+                        c => FixAsync(context.Document, classDecl, requiredAttributes, c),
+                        Title),
+                    diagnostic);
+            }
+        }
+
+        private async Task<Document> FixAsync(Document document, ClassDeclarationSyntax classDecl,
+            string requiredAttributes, CancellationToken cancellationToken)
+        {
+            var attributes = new List<AttributeSyntax>();
+            var namespaces = new List<string>();
+            foreach (var attribute in requiredAttributes.Split(','))
+            {
+                var tempSplit = attribute.Split('.');
+                namespaces.Add(string.Join(".",tempSplit.Take(tempSplit.Length-1)));
+                var @class = tempSplit.Last();
+                @class = @class.Substring(0, @class.Length - 9); //cut out "Attribute" at the end
+                attributes.Add(SyntaxFactory.Attribute(SyntaxFactory.ParseName(@class)));
+            }
+
+            var newClassDecl =
+                classDecl.AddAttributeLists(SyntaxFactory.AttributeList(SyntaxFactory.SeparatedList(attributes)));
+
+            var root = (CompilationUnitSyntax) await document.GetSyntaxRootAsync(cancellationToken);
+            root = root.ReplaceNode(classDecl, newClassDecl);
+
+            foreach (var ns in namespaces)
+            {
+                if(root.Usings.Any(u => u.Name.ToString() == ns)) continue;
+                root = root.AddUsings(SyntaxFactory.UsingDirective(SyntaxFactory.ParseName(ns)));
+            }
+            return document.WithSyntaxRoot(root);
+        }
+
+        public sealed override ImmutableArray<string> FixableDiagnosticIds => ImmutableArray.Create(SerializableAnalyzer.DiagnosticId);
+
+        public override FixAllProvider GetFixAllProvider()
+        {
+            return WellKnownFixAllProviders.BatchFixer;
+        }
+
+    }
+}

Robust.Client.Injectors/CompileRobustXamlTask.cs

@@ -1,4 +1,5 @@
-using System.Diagnostics;
+using System;
+using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using Microsoft.Build.Framework;
@@ -48,6 +49,19 @@ namespace Robust.Build.Tasks
                 if(File.Exists(inputPdb))
                     File.Copy(inputPdb, outputPdb, true);
             }
+
+            if (!string.IsNullOrEmpty(UpdateBuildIndicator))
+            {
+                if (!File.Exists(UpdateBuildIndicator))
+                {
+                    File.Create(UpdateBuildIndicator).Dispose();
+                }
+                else
+                {
+                    File.SetLastWriteTime(UpdateBuildIndicator, DateTime.Now);
+                }
+            }
+
             return true;
         }
 
@@ -64,6 +78,7 @@ namespace Robust.Build.Tasks
         public string OriginalCopyPath { get; set; }
 
         public string OutputPath { get; set; }
+        public string UpdateBuildIndicator { get; set; }
 
         public string AssemblyOriginatorKeyFile { get; set; }
         public bool SignAssembly { get; set; }

Robust.Client.Injectors/MathParsing.cs

@@ -0,0 +1,37 @@
+using System.Linq;
+using Pidgin;
+using static Pidgin.Parser;
+
+
+namespace Robust.Build.Tasks
+{
+    public static class MathParsing
+    {
+        public static Parser<char, float> Single { get; } = Real.Select(c => (float) c);
+
+        public static Parser<char, float> Single1 { get; }
+            = Single.Between(SkipWhitespaces);
+
+        public static Parser<char, (float, float)> Single2 { get; }
+            = Single.Before(SkipWhitespaces).Repeat(2).Select(e =>
+            {
+                var arr = e.ToArray();
+                return (arr[0], arr[1]);
+            });
+
+        public static Parser<char, (float, float, float, float)> Single4 { get; }
+            = Single.Before(SkipWhitespaces).Repeat(4).Select(e =>
+            {
+                var arr = e.ToArray();
+                return (arr[0], arr[1], arr[2], arr[3]);
+            });
+
+        public static Parser<char, float[]> Thickness { get; }
+            = SkipWhitespaces.Then(
+                OneOf(
+                    Try(Single1.Select(c => new[] {c})),
+                    Try(Single2.Select(c => new[] {c.Item1, c.Item2})),
+                    Try(Single4.Select(c => new[] {c.Item1, c.Item2, c.Item3, c.Item4}))
+                ));
+    }
+}

Robust.Client.Injectors/RXamlVecLikeConstAstNode.cs

@@ -0,0 +1,93 @@
+using System;
+using System.Linq;
+using System.Reflection.Emit;
+using XamlX.Ast;
+using XamlX.Emit;
+using XamlX.IL;
+using XamlX.TypeSystem;
+
+namespace Robust.Build.Tasks
+{
+    public abstract class RXamlVecLikeConstAstNode<T>
+        : XamlAstNode, IXamlAstValueNode, IXamlAstILEmitableNode
+        where T : unmanaged
+    {
+        private readonly IXamlConstructor _constructor;
+        protected readonly T[] Values;
+
+        public RXamlVecLikeConstAstNode(
+            IXamlLineInfo lineInfo,
+            IXamlType type, IXamlConstructor constructor,
+            IXamlType componentType, T[] values)
+            : base(lineInfo)
+        {
+            _constructor = constructor;
+            Values = values;
+
+            var @params = constructor.Parameters;
+
+            if (@params.Count != values.Length)
+                throw new ArgumentException("Invalid amount of parameters");
+
+            if (@params.Any(c => c != componentType))
+                throw new ArgumentException("Invalid constructor: not all parameters match component type");
+
+            Type = new XamlAstClrTypeReference(lineInfo, type, false);
+        }
+
+        public IXamlAstTypeReference Type { get; }
+
+        public virtual XamlILNodeEmitResult Emit(
+            XamlEmitContext<IXamlILEmitter, XamlILNodeEmitResult> context,
+            IXamlILEmitter codeGen)
+        {
+            codeGen.Newobj(_constructor);
+
+            return XamlILNodeEmitResult.Type(0, Type.GetClrType());
+        }
+    }
+
+    public sealed class RXamlSingleVecLikeConstAstNode : RXamlVecLikeConstAstNode<float>
+    {
+        public RXamlSingleVecLikeConstAstNode(
+            IXamlLineInfo lineInfo,
+            IXamlType type, IXamlConstructor constructor,
+            IXamlType componentType, float[] values)
+            : base(lineInfo, type, constructor, componentType, values)
+        {
+        }
+
+        public override XamlILNodeEmitResult Emit(XamlEmitContext<IXamlILEmitter, XamlILNodeEmitResult> context,
+            IXamlILEmitter codeGen)
+        {
+            foreach (var value in Values)
+            {
+                codeGen.Emit(OpCodes.Ldc_R4, value);
+            }
+
+            return base.Emit(context, codeGen);
+        }
+    }
+
+    public sealed class RXamlInt32VecLikeConstAstNode : RXamlVecLikeConstAstNode<int>
+    {
+        public RXamlInt32VecLikeConstAstNode(
+            IXamlLineInfo lineInfo,
+            IXamlType type, IXamlConstructor constructor,
+            IXamlType componentType, int[] values)
+            : base(lineInfo, type, constructor, componentType, values)
+        {
+        }
+
+        public override XamlILNodeEmitResult Emit(XamlEmitContext<IXamlILEmitter, XamlILNodeEmitResult> context,
+            IXamlILEmitter codeGen)
+        {
+            foreach (var value in Values)
+            {
+                codeGen.Emit(OpCodes.Ldc_I4, value);
+            }
+
+            return base.Emit(context, codeGen);
+        }
+    }
+}

Robust.Client.Injectors/RXamlWellKnownTypes.cs

@@ -0,0 +1,47 @@
+using System.Linq;
+using XamlX.Transform;
+using XamlX.TypeSystem;
+
+namespace Robust.Build.Tasks
+{
+    class RXamlWellKnownTypes
+    {
+        public XamlTypeWellKnownTypes XamlIlTypes { get; }
+        public IXamlType Single { get; }
+        public IXamlType Int32 { get; }
+        public IXamlType Vector2 { get; }
+        public IXamlConstructor Vector2ConstructorFull { get; }
+        public IXamlType Vector2i { get; }
+        public IXamlConstructor Vector2iConstructorFull { get; }
+
+        public RXamlWellKnownTypes(TransformerConfiguration cfg)
+        {
+            var ts = cfg.TypeSystem;
+            XamlIlTypes = cfg.WellKnownTypes;
+            Single = ts.GetType("System.Single");
+            Int32 = ts.GetType("System.Int32");
+
+            (Vector2, Vector2ConstructorFull) = GetNumericTypeInfo("Robust.Shared.Maths.Vector2", Single, 2);
+            (Vector2i, Vector2iConstructorFull) = GetNumericTypeInfo("Robust.Shared.Maths.Vector2i", Int32, 2);
+
+            (IXamlType, IXamlConstructor) GetNumericTypeInfo(string name, IXamlType componentType, int componentCount)
+            {
+                var type = cfg.TypeSystem.GetType(name);
+                var ctor = type.GetConstructor(Enumerable.Repeat(componentType, componentCount).ToList());
+
+                return (type, ctor);
+            }
+        }
+    }
+
+    static class RXamlWellKnownTypesExtensions
+    {
+        public static RXamlWellKnownTypes GetRobustTypes(this AstTransformationContext ctx)
+        {
+            if (ctx.TryGetItem<RXamlWellKnownTypes>(out var rv))
+                return rv;
+            ctx.SetItem(rv = new RXamlWellKnownTypes(ctx.Configuration));
+            return rv;
+        }
+    }
+}

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

@@ -1,13 +1,14 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <OutputType>Exe</OutputType>
         <TargetFramework>netstandard2.0</TargetFramework>
+        <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
     </PropertyGroup>
 
     <ItemGroup>
       <PackageReference Include="Microsoft.Build.Framework" Version="16.8.0" />
       <PackageReference Include="Mono.Cecil" Version="0.11.3" />
+      <PackageReference Include="Pidgin" Version="2.5.0" />
     </ItemGroup>
 
     <ItemGroup>

Robust.Client.Injectors/XamlCompiler.cs

@@ -6,6 +6,7 @@ using Microsoft.Build.Framework;
 using Mono.Cecil;
 using Mono.Cecil.Cil;
 using Mono.Cecil.Rocks;
+using Pidgin;
 using XamlX;
 using XamlX.Ast;
 using XamlX.Emit;
@@ -31,6 +32,16 @@ namespace Robust.Build.Tasks
 
             var asm = typeSystem.TargetAssemblyDefinition;
 
+            if (asm.MainModule.GetType("CompiledRobustXaml", "XamlIlContext") != null)
+            {
+                // If this type exists, the assembly has already been processed by us.
+                // Do not run again, it would corrupt the file.
+                // This *shouldn't* be possible due to Inputs/Outputs dependencies in the build system,
+                // but better safe than sorry eh?
+                engine.LogWarningEvent(new BuildWarningEventArgs("XAMLIL", "", "", 0, 0, 0, 0, "Ran twice on same assembly file; ignoring.", "", ""));
+                return (true, false);
+            }
+
             var compileRes = CompileCore(engine, typeSystem);
             if (compileRes == null)
                 return (true, false);
@@ -60,7 +71,7 @@ namespace Robust.Build.Tasks
             {
                 XmlnsAttributes =
                 {
-                    typeSystem.GetType("Robust.Client.UserInterface.XAML.XmlnsDefinitionAttribute"),
+                    typeSystem.GetType("Avalonia.Metadata.XmlnsDefinitionAttribute"),
 
                 },
                 ContentAttributes =
@@ -88,7 +99,7 @@ namespace Robust.Build.Tasks
                 typeSystem,
                 typeSystem.TargetAssembly,
                 xamlLanguage,
-                XamlXmlnsMappings.Resolve(typeSystem, xamlLanguage));
+                XamlXmlnsMappings.Resolve(typeSystem, xamlLanguage), CustomValueConverter);
 
             var contextDef = new TypeDefinition("CompiledRobustXaml", "XamlIlContext",
                 TypeAttributes.Class, asm.MainModule.TypeSystem.Object);
@@ -287,6 +298,41 @@ namespace Robust.Build.Tasks
             return true;
         }
 
+        private static bool CustomValueConverter(
+            AstTransformationContext context,
+            IXamlAstValueNode node,
+            IXamlType type,
+            out IXamlAstValueNode result)
+        {
+            if (!(node is XamlAstTextNode textNode))
+            {
+                result = null;
+                return false;
+            }
+
+            var text = textNode.Text;
+            var types = context.GetRobustTypes();
+
+            if (type.Equals(types.Vector2))
+            {
+                var foo = MathParsing.Single2.Parse(text);
+
+                if (!foo.Success)
+                    throw new XamlLoadException($"Unable to parse \"{text}\" as a Vector2", node);
+
+                var (x, y) = foo.Value;
+
+                result = new RXamlSingleVecLikeConstAstNode(
+                    node,
+                    types.Vector2, types.Vector2ConstructorFull,
+                    types.Single, new[] {x, y});
+                return true;
+            }
+
+            result = null;
+            return false;
+        }
+
         public const string ContextNameScopeFieldName = "RobustNameScope";
 
         private static void EmitNameScopeField(XamlLanguageTypeMappings xamlLanguage, CecilTypeSystem typeSystem, IXamlTypeBuilder<IXamlILEmitter> typeBuilder, IXamlILEmitter constructor)

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

@@ -5,8 +5,8 @@
     </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="3.8.0-3.final" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.1" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="3.8.0" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.2" PrivateAssets="all" />
   </ItemGroup>
 
   <ItemGroup>

Robust.Client.NameGenerator/XamlUiPartialClassGenerator.cs

@@ -24,6 +24,7 @@ namespace Robust.Client.NameGenerator
     {
         private const string AttributeName = "Robust.Client.AutoGenerated.GenerateTypedNameReferencesAttribute";
         private const string AttributeFile = "GenerateTypedNameReferencesAttribute";
+
         private const string AttributeCode = @"// <auto-generated />
 using System;
 namespace Robust.Client.AutoGenerated
@@ -54,8 +55,8 @@ namespace Robust.Client.AutoGenerated
                 {
                     var clrtype = objectNode.Type.GetClrType();
                     var isControl = IsControl(clrtype);
-                        //clrtype.Interfaces.Any(i =>
-                        //i.IsInterface && i.FullName == "Robust.Client.UserInterface.IControl");
+                    //clrtype.Interfaces.Any(i =>
+                    //i.IsInterface && i.FullName == "Robust.Client.UserInterface.IControl");
 
                     if (!isControl)
                         return node;
@@ -80,9 +81,13 @@ namespace Robust.Client.AutoGenerated
                 return node;
             }
 
-            public void Push(IXamlAstNode node) { }
+            public void Push(IXamlAstNode node)
+            {
+            }
 
-            public void Pop() { }
+            public void Pop()
+            {
+            }
         }
 
         private static string GenerateSourceCode(
@@ -97,7 +102,10 @@ namespace Robust.Client.AutoGenerated
             var compiler =
                 new XamlILCompiler(
                     new TransformerConfiguration(typeSystem, typeSystem.Assemblies[0],
-                        new XamlLanguageTypeMappings(typeSystem)),
+                        new XamlLanguageTypeMappings(typeSystem)
+                        {
+                            XmlnsAttributes = {typeSystem.GetType("Avalonia.Metadata.XmlnsDefinitionAttribute")}
+                        }),
                     new XamlLanguageEmitMappings<IXamlILEmitter, XamlILNodeEmitResult>(), false);
             compiler.Transformers.Add(new TypeReferenceResolver());
             compiler.Transform(parsed);
@@ -105,8 +113,8 @@ namespace Robust.Client.AutoGenerated
             var names = NameVisitor.GetNames(initialRoot);
             //var names = NameVisitor.GetNames((XamlAstObjectNode)XDocumentXamlParser.Parse(xamlFile).Root);
             var namedControls = names.Select(info => "        " +
-                                $"protected global::{info.type} {info.name} => " +
-                                $"this.FindControl<global::{info.type}>(\"{info.name}\");");
+                                                     $"protected global::{info.type} {info.name} => " +
+                                                     $"this.FindControl<global::{info.type}>(\"{info.name}\");");
             return $@"// <auto-generated />
 using Robust.Client.UserInterface;
 using Robust.Client.UserInterface.Controls;
@@ -124,7 +132,7 @@ namespace {nameSpace}
         public void Execute(GeneratorExecutionContext context)
         {
             var comp = (CSharpCompilation) context.Compilation;
-            if(comp.GetTypeByMetadataName(AttributeName) == null)
+            if (comp.GetTypeByMetadataName(AttributeName) == null)
                 context.AddSource(AttributeFile, SourceText.From(AttributeCode, Encoding.UTF8));
             if (!(context.SyntaxReceiver is NameReferenceSyntaxReceiver receiver))
             {
@@ -132,7 +140,7 @@ namespace {nameSpace}
             }
 
             var symbols = UnpackAnnotatedTypes(context, comp, receiver);
-            if(symbols == null)
+            if (symbols == null)
                 return;
 
             foreach (var typeSymbol in symbols)
@@ -153,7 +161,7 @@ namespace {nameSpace}
                                 DiagnosticSeverity.Error,
                                 true),
                             typeSymbol.Locations[0]));
-                    return;
+                    continue;
                 }
 
                 var txt = relevantXamlFile.GetText()?.ToString();
@@ -168,8 +176,9 @@ namespace {nameSpace}
                                 "Usage",
                                 DiagnosticSeverity.Error,
                                 true),
-                            Location.Create(xamlFileName, new TextSpan(0,0), new LinePositionSpan(new LinePosition(0,0),new LinePosition(0,0)))));
-                    return;
+                            Location.Create(xamlFileName, new TextSpan(0, 0),
+                                new LinePositionSpan(new LinePosition(0, 0), new LinePosition(0, 0)))));
+                    continue;
                 }
 
                 try
@@ -189,12 +198,13 @@ namespace {nameSpace}
                                 DiagnosticSeverity.Error,
                                 true),
                             typeSymbol.Locations[0]));
-                    return;
+                    continue;
                 }
             }
         }
 
-        private IReadOnlyList<INamedTypeSymbol> UnpackAnnotatedTypes(in GeneratorExecutionContext context, CSharpCompilation comp, NameReferenceSyntaxReceiver receiver)
+        private IReadOnlyList<INamedTypeSymbol> UnpackAnnotatedTypes(in GeneratorExecutionContext context,
+            CSharpCompilation comp, NameReferenceSyntaxReceiver receiver)
         {
             var options = (CSharpParseOptions) comp.SyntaxTrees[0].Options;
             var compilation =

Robust.Client/Animations/Animation.cs

@@ -1,6 +1,6 @@
 using System;
 using System.Collections.Generic;
-using Robust.Client.GameObjects.Components.Animations;
+using Robust.Client.GameObjects;
 
 namespace Robust.Client.Animations
 {

Robust.Client/Animations/AnimationTrackComponentProperty.cs

@@ -1,7 +1,7 @@
 using System;
 using JetBrains.Annotations;
 using Robust.Shared.Animations;
-using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.GameObjects;
 
 namespace Robust.Client.Animations
 {

Robust.Client/Animations/AnimationTrackControlProperty.cs

@@ -1,8 +1,7 @@
 using System;
-using Robust.Client.Animations;
 using Robust.Shared.Animations;
 
-namespace Content.Client.Animations
+namespace Robust.Client.Animations
 {
     public class AnimationTrackControlProperty : AnimationTrackProperty
     {

Robust.Client/Animations/AnimationTrackPlaySound.cs

@@ -1,11 +1,8 @@
 using System;
 using System.Collections.Generic;
-using Robust.Client.GameObjects.EntitySystems;
+using Robust.Client.GameObjects;
 using Robust.Shared.Audio;
-using Robust.Shared.GameObjects.Systems;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.IoC;
-using Robust.Shared.Utility;
+using Robust.Shared.GameObjects;
 
 namespace Robust.Client.Animations
 {

Robust.Client/Animations/AnimationTrackSpriteFlick.cs

@@ -1,8 +1,8 @@
 using System;
 using System.Collections.Generic;
+using Robust.Client.GameObjects;
 using Robust.Client.Graphics;
-using Robust.Client.Interfaces.GameObjects.Components;
-using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.GameObjects;
 using Robust.Shared.Utility;
 
 namespace Robust.Client.Animations

Robust.Client/Audio/AudioStream.cs

@@ -1,6 +1,5 @@
 using System;
 using Robust.Client.Graphics;
-using Robust.Client.Graphics.Clyde;
 
 namespace Robust.Client.Audio
 {

Robust.Client/Audio/Midi/MidiManager.cs

@@ -4,16 +4,15 @@ using System.IO;
 using System.Runtime.InteropServices;
 using System.Threading;
 using NFluidsynth;
-using Robust.Client.Interfaces.Graphics.ClientEye;
-using Robust.Client.Interfaces.ResourceManagement;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.Log;
-using Robust.Shared.Interfaces.Physics;
-using Robust.Shared.Interfaces.Resources;
+using Robust.Client.Graphics;
+using Robust.Client.ResourceManagement;
+using Robust.Shared.ContentPack;
+using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
 using Robust.Shared.Log;
 using Robust.Shared.Map;
 using Robust.Shared.Maths;
+using Robust.Shared.Physics;
 using Robust.Shared.Utility;
 using Logger = Robust.Shared.Log.Logger;
 
@@ -104,7 +103,7 @@ namespace Robust.Client.Audio.Midi
         private const string OsxSoundfont =
             "/System/Library/Components/CoreAudio.component/Contents/Resources/gs_instruments.dls";
 
-        private const string FallbackSoundfont = "/Resources/Midi/fallback.sf2";
+        private const string FallbackSoundfont = "/Midi/fallback.sf2";
 
         private readonly ResourceLoaderCallbacks _soundfontLoaderCallbacks = new();
 
@@ -207,13 +206,10 @@ namespace Robust.Client.Audio.Midi
 
                 var renderer = new MidiRenderer(_settings!, soundfontLoader);
 
-                foreach (var file in _resourceManager.ContentFindFiles(new ResourcePath("/Audio/MidiCustom/")))
+                foreach (var file in _resourceManager.ContentFindFiles(("/Audio/MidiCustom/")))
                 {
                     if (file.Extension != "sf2" && file.Extension != "dls") continue;
-                    if (_resourceManager.TryGetDiskFilePath(file, out var path))
-                    {
-                        renderer.LoadSoundfont(path);
-                    }
+                    renderer.LoadSoundfont(file.ToString());
                 }
 
                 // Since the last loaded soundfont takes priority, we load the fallback soundfont before the soundfont.
@@ -382,10 +378,18 @@ namespace Robust.Client.Audio.Midi
 
             public override IntPtr Open(string filename)
             {
-                Stream? stream;
-                if (filename.StartsWith("/Resources/"))
+                if (string.IsNullOrEmpty(filename))
                 {
-                    if (!IoCManager.Resolve<IResourceCache>().TryContentFileRead(filename.Substring(10), out stream))
+                    return IntPtr.Zero;
+                }
+
+                Stream? stream;
+                var resourceCache = IoCManager.Resolve<IResourceCache>();
+                var resourcePath = new ResourcePath(filename);
+
+                if (resourcePath.IsRooted && resourceCache.ContentFileExists(filename))
+                {
+                    if (!resourceCache.TryContentFileRead(filename, out stream))
                         return IntPtr.Zero;
                 }
                 else if (File.Exists(filename))

Robust.Client/Audio/Midi/MidiRenderer.cs

@@ -1,11 +1,9 @@
 using System;
-using System.IO;
 using System.Runtime.Intrinsics.X86;
 using NFluidsynth;
-using Robust.Client.Interfaces.Graphics;
+using Robust.Client.Graphics;
 using Robust.Shared.Asynchronous;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.Log;
+using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
 using Robust.Shared.Log;
 using Robust.Shared.Map;
@@ -72,9 +70,9 @@ namespace Robust.Client.Audio.Midi
         int PlayerTotalTick { get; }
 
         /// <summary>
-        ///     Gets the current tick of the MIDI player.
+        ///     Gets or sets (seeks) the current tick of the MIDI player.
         /// </summary>
-        int PlayerTick { get; }
+        int PlayerTick { get; set; }
 
         /// <summary>
         ///     Gets the current tick of the sequencer.
@@ -235,7 +233,16 @@ namespace Robust.Client.Audio.Midi
         public bool DisableProgramChangeEvent { get; set; } = true;
 
         public int PlayerTotalTick => _player?.GetTotalTicks ?? 0;
-        public int PlayerTick => _player?.CurrentTick ?? 0;
+        public int PlayerTick
+        {
+            get => _player?.CurrentTick ?? 0;
+            set
+            {
+                lock (_playerStateLock)
+                    _player?.Seek(Math.Max(Math.Min(value, PlayerTotalTick), 0));
+            }
+        }
+
         public uint SequencerTick => _sequencer?.Tick ?? 0;
         public double SequencerTimeScale => _sequencer?.TimeScale ?? 0;
 
@@ -310,9 +317,8 @@ namespace Robust.Client.Audio.Midi
 
             lock (_playerStateLock)
             {
-                if (_player == null)
-                    _player = new NFluidsynth.Player(_synth);
-                _player.Stop();
+                _player?.Dispose();
+                _player = new NFluidsynth.Player(_synth);
                 _player.AddMem(buffer);
                 _player.SetPlaybackCallback(MidiPlayerEventHandler);
                 _player.Play();
@@ -351,10 +357,7 @@ namespace Robust.Client.Audio.Midi
 
         public void StopAllNotes()
         {
-            for (var i = 0; i < 16; i++)
-            {
-                _synth.AllNotesOff(i);
-            }
+            _synth.AllNotesOff(-1);
         }
 
         public void LoadSoundfont(string filename, bool resetPresets = false)
@@ -475,12 +478,6 @@ namespace Robust.Client.Audio.Midi
                 lock(_playerStateLock)
                     switch (midiEvent.Type)
                     {
-                        // Sometimes MIDI files spam these for no good reason and I can't find any info on what they are.
-                        case 1:
-                        case 5:
-                        case 81:
-                            break;
-
                         // Note On 0x80
                         case 144:
                             _synth.NoteOn(midiEvent.Channel, midiEvent.Key, midiEvent.Velocity);
@@ -503,8 +500,10 @@ namespace Robust.Client.Audio.Midi
 
                         // Program Change - 0xC0
                         case 192:
-                            if(!DisableProgramChangeEvent)
+                            if (!DisableProgramChangeEvent)
                                 _synth.ProgramChange(midiEvent.Channel, midiEvent.Program);
+                            else
+                                return;
                             break;
 
                         // Channel Pressure - 0xD0
@@ -517,13 +516,17 @@ namespace Robust.Client.Audio.Midi
                             _synth.PitchBend(midiEvent.Channel, midiEvent.Pitch);
                             break;
 
+                        // Sometimes MIDI files spam these for no good reason and I can't find any info on what they are.
+                        case 1:
+                        case 5:
+                        case 81:
                         // System Messages - 0xF0
                         case 240:
-                            break;
+                            return;
 
                         default:
                             _midiSawmill.Warning("Unhandled midi event of type {0}", midiEvent.Type, midiEvent);
-                            break;
+                            return;
                     }
             }
             catch (FluidSynthInteropException)

Robust.Client/BaseClient.cs

@@ -1,21 +1,18 @@
-using System;
+using System;
 using System.Net;
-using Robust.Client.Interfaces;
-using Robust.Client.Interfaces.Debugging;
-using Robust.Client.Interfaces.GameObjects;
-using Robust.Client.Interfaces.GameStates;
-using Robust.Client.Interfaces.Utility;
+using Robust.Client.Debugging;
+using Robust.Client.GameObjects;
+using Robust.Client.GameStates;
 using Robust.Client.Player;
+using Robust.Client.Utility;
 using Robust.Shared;
+using Robust.Shared.Configuration;
 using Robust.Shared.Enums;
-using Robust.Shared.Interfaces.Configuration;
-using Robust.Shared.Interfaces.Map;
-using Robust.Shared.Interfaces.Network;
-using Robust.Shared.Interfaces.Timing;
 using Robust.Shared.IoC;
 using Robust.Shared.Log;
+using Robust.Shared.Map;
 using Robust.Shared.Network;
-using Robust.Shared.Network.Messages;
+using Robust.Shared.Timing;
 using Robust.Shared.Utility;
 
 namespace Robust.Client
@@ -25,7 +22,7 @@ namespace Robust.Client
     {
         [Dependency] private readonly IClientNetManager _net = default!;
         [Dependency] private readonly IPlayerManager _playMan = default!;
-        [Dependency] private readonly IConfigurationManager _configManager = default!;
+        [Dependency] private readonly INetConfigurationManager _configManager = default!;
         [Dependency] private readonly IClientEntityManager _entityManager = default!;
         [Dependency] private readonly IMapManager _mapManager = default!;
         [Dependency] private readonly IDiscordRichPresence _discord = default!;
@@ -50,18 +47,28 @@ namespace Robust.Client
         /// <inheritdoc />
         public void Initialize()
         {
-            _net.RegisterNetMessage<MsgServerInfo>(MsgServerInfo.NAME, HandleServerInfo);
-            _net.RegisterNetMessage<MsgSetTickRate>(MsgSetTickRate.NAME, HandleSetTickRate);
-            _net.RegisterNetMessage<MsgServerInfoReq>(MsgServerInfoReq.NAME);
             _net.Connected += OnConnected;
             _net.ConnectFailed += OnConnectFailed;
             _net.Disconnect += OnNetDisconnect;
 
+            _configManager.OnValueChanged(CVars.NetTickrate, TickRateChanged, invokeImmediately: true);
+
             _playMan.Initialize();
             _debugDrawMan.Initialize();
             Reset();
         }
 
+        private void TickRateChanged(int tickrate)
+        {
+            if (GameInfo != null)
+            {
+                GameInfo.TickRate = (byte) tickrate;
+            }
+
+            _timing.TickRate = (byte) tickrate;
+            Logger.InfoS("client", $"Tickrate changed to: {tickrate} on tick {_timing.CurTick}");
+        }
+
         /// <inheritdoc />
         public void ConnectToServer(DnsEndPoint endPoint)
         {
@@ -98,9 +105,39 @@ namespace Robust.Client
 
         private void OnConnected(object? sender, NetChannelArgs args)
         {
-            // request base info about the server
-            var msgInfo = _net.CreateNetMessage<MsgServerInfoReq>();
-            _net.ClientSendMessage(msgInfo);
+            _configManager.SyncWithServer();
+            _configManager.ReceivedInitialNwVars += OnReceivedClientData;
+        }
+
+        private void OnReceivedClientData(object? sender, EventArgs e)
+        {
+            _configManager.ReceivedInitialNwVars -= OnReceivedClientData;
+
+            var info = GameInfo;
+
+            var serverName = _configManager.GetCVar<string>("game.hostname");
+            if (info == null)
+            {
+                GameInfo = info = new ServerInfo(serverName);
+            }
+            else
+            {
+                info.ServerName = serverName;
+            }
+
+            var maxPlayers = _configManager.GetCVar<int>("game.maxplayers");
+            info.ServerMaxPlayers = maxPlayers;
+
+            var userName = _net.ServerChannel!.UserName;
+            var userId = _net.ServerChannel.UserId;
+            _discord.Update(info.ServerName, userName, info.ServerMaxPlayers.ToString());
+            // start up player management
+            _playMan.Startup(_net.ServerChannel!);
+
+            _playMan.LocalPlayer!.UserId = userId;
+            _playMan.LocalPlayer.Name = userName;
+
+            _playMan.LocalPlayer.StatusChanged += OnLocalStatusChanged;
         }
 
         /// <summary>
@@ -135,6 +172,7 @@ namespace Robust.Client
 
         private void Reset()
         {
+            _configManager.ClearReceivedInitialNwVars();
             OnRunLevelChanged(ClientRunLevel.Initialize);
         }
 
@@ -152,6 +190,7 @@ namespace Robust.Client
 
             LastDisconnectReason = args.Reason;
 
+            IoCManager.Resolve<INetConfigurationManager>().FlushMessages();
             _gameStates.Reset();
             _playMan.Shutdown();
             _entityManager.Shutdown();
@@ -160,42 +199,6 @@ namespace Robust.Client
             Reset();
         }
 
-        private void HandleServerInfo(MsgServerInfo msg)
-        {
-            var info = GameInfo;
-
-            if (info == null)
-            {
-                GameInfo = info = new ServerInfo(msg.ServerName);
-            }
-            else
-            {
-                info.ServerName = msg.ServerName;
-            }
-
-            info.ServerMaxPlayers = msg.ServerMaxPlayers;
-            info.TickRate = msg.TickRate;
-            _timing.TickRate = msg.TickRate;
-            Logger.InfoS("client", $"Tickrate changed to: {msg.TickRate}");
-
-            var userName = msg.MsgChannel.UserName;
-            var userId = msg.MsgChannel.UserId;
-            _discord.Update(info.ServerName, userName, info.ServerMaxPlayers.ToString());
-            // start up player management
-            _playMan.Startup(_net.ServerChannel!);
-
-            _playMan.LocalPlayer!.UserId = userId;
-            _playMan.LocalPlayer.Name = userName;
-
-            _playMan.LocalPlayer.StatusChanged += OnLocalStatusChanged;
-        }
-
-        private void HandleSetTickRate(MsgSetTickRate message)
-        {
-            _timing.TickRate = message.NewTickRate;
-            Logger.InfoS("client", $"Tickrate changed to: {message.NewTickRate} on tick {_timing.CurTick}");
-        }
-
         private void OnLocalStatusChanged(object? obj, StatusEventArgs eventArgs)
         {
             // player finished fully connecting to the server.

Robust.Client/ClientIoC.cs

@@ -5,26 +5,8 @@ using Robust.Client.Debugging;
 using Robust.Client.GameObjects;
 using Robust.Client.GameStates;
 using Robust.Client.Graphics;
-using Robust.Client.Graphics.ClientEye;
 using Robust.Client.Graphics.Clyde;
-using Robust.Client.Graphics.Lighting;
-using Robust.Client.Graphics.Overlays;
 using Robust.Client.Input;
-using Robust.Client.Interfaces;
-using Robust.Client.Interfaces.Debugging;
-using Robust.Client.Interfaces.GameObjects;
-using Robust.Client.Interfaces.GameStates;
-using Robust.Client.Interfaces.Graphics;
-using Robust.Client.Interfaces.Graphics.ClientEye;
-using Robust.Client.Interfaces.Graphics.Lighting;
-using Robust.Client.Interfaces.Graphics.Overlays;
-using Robust.Client.Interfaces.Input;
-using Robust.Client.Interfaces.Map;
-using Robust.Client.Interfaces.Placement;
-using Robust.Client.Interfaces.ResourceManagement;
-using Robust.Client.Interfaces.State;
-using Robust.Client.Interfaces.UserInterface;
-using Robust.Client.Interfaces.Utility;
 using Robust.Client.Map;
 using Robust.Client.Placement;
 using Robust.Client.Player;
@@ -35,15 +17,13 @@ using Robust.Client.UserInterface;
 using Robust.Client.Utility;
 using Robust.Client.ViewVariables;
 using Robust.Shared;
+using Robust.Shared.ContentPack;
 using Robust.Shared.GameObjects;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.Map;
-using Robust.Shared.Interfaces.Network;
-using Robust.Shared.Interfaces.Reflection;
-using Robust.Shared.Interfaces.Resources;
 using Robust.Shared.IoC;
+using Robust.Shared.Map;
 using Robust.Shared.Network;
 using Robust.Shared.Prototypes;
+using Robust.Shared.Reflection;
 
 namespace Robust.Client
 {
@@ -78,10 +58,11 @@ namespace Robust.Client
             IoCManager.Register<IDebugDrawingManager, DebugDrawingManager>();
             IoCManager.Register<ILightManager, LightManager>();
             IoCManager.Register<IDiscordRichPresence, DiscordRichPresence>();
-            IoCManager.Register<IClientConsole, ClientConsole>();
+            IoCManager.Register<IClientConsoleHost, ClientConsoleHost>();
             IoCManager.Register<IFontManager, FontManager>();
             IoCManager.Register<IFontManagerInternal, FontManager>();
             IoCManager.Register<IMidiManager, MidiManager>();
+            IoCManager.Register<IAuthManager, AuthManager>();
             switch (mode)
             {
                 case GameController.DisplayMode.Headless:

Robust.Client/Console/ClientConsole.cs

@@ -1,243 +0,0 @@
-using System;
-using System.Collections.Generic;
-using Robust.Client.Interfaces.Console;
-using Robust.Client.Log;
-using Robust.Client.Utility;
-using Robust.Shared.Console;
-using Robust.Shared.Interfaces.Log;
-using Robust.Shared.Interfaces.Network;
-using Robust.Shared.Interfaces.Reflection;
-using Robust.Shared.IoC;
-using Robust.Shared.Log;
-using Robust.Shared.Maths;
-using Robust.Shared.Network;
-using Robust.Shared.Network.Messages;
-using Robust.Shared.Reflection;
-using Robust.Shared.Utility;
-
-namespace Robust.Client.Console
-{
-    public class AddStringArgs : EventArgs
-    {
-        public string Text { get; }
-        public Color Color { get; }
-
-        public AddStringArgs(string text, Color color)
-        {
-            Text = text;
-            Color = color;
-        }
-    }
-
-    public class AddFormattedMessageArgs : EventArgs
-    {
-        public readonly FormattedMessage Message;
-
-        public AddFormattedMessageArgs(FormattedMessage message)
-        {
-            Message = message;
-        }
-    }
-
-    internal sealed class ClientConsole : IClientConsole, IDebugConsole
-    {
-        private static readonly Color MsgColor = new Color(65, 105, 225);
-
-        [Dependency] private readonly IClientNetManager _network = default!;
-        [Dependency] private readonly IReflectionManager _reflectionManager = default!;
-        [Dependency] private readonly ILogManager logManager = default!;
-
-        private readonly Dictionary<string, IConsoleCommand> _commands = new Dictionary<string, IConsoleCommand>();
-        private bool _requestedCommands;
-
-        /// <inheritdoc />
-        public void Initialize()
-        {
-            _network.RegisterNetMessage<MsgConCmdReg>(MsgConCmdReg.NAME, HandleConCmdReg);
-            _network.RegisterNetMessage<MsgConCmdAck>(MsgConCmdAck.NAME, HandleConCmdAck);
-            _network.RegisterNetMessage<MsgConCmd>(MsgConCmd.NAME);
-
-            Reset();
-            logManager.RootSawmill.AddHandler(new DebugConsoleLogHandler(this));
-        }
-
-        /// <inheritdoc />
-        public void Reset()
-        {
-            _commands.Clear();
-            _requestedCommands = false;
-            _network.Connected += OnNetworkConnected;
-
-            InitializeCommands();
-            SendServerCommandRequest();
-        }
-
-        private void OnNetworkConnected(object? sender, NetChannelArgs netChannelArgs)
-        {
-            SendServerCommandRequest();
-        }
-
-        /// <inheritdoc />
-        public void Dispose()
-        {
-            // We don't have anything to dispose.
-        }
-
-        public IReadOnlyDictionary<string, IConsoleCommand> Commands => _commands;
-
-        public void AddLine(string text, Color color)
-        {
-            AddString?.Invoke(this, new AddStringArgs(text, color));
-        }
-
-        public void AddLine(string text)
-        {
-            AddLine(text, Color.White);
-        }
-
-        public void Clear()
-        {
-            ClearText?.Invoke(this, EventArgs.Empty);
-        }
-
-        public event EventHandler<AddStringArgs>? AddString;
-        public event EventHandler? ClearText;
-        public event EventHandler<AddFormattedMessageArgs>? AddFormatted;
-
-        private void HandleConCmdAck(MsgConCmdAck msg)
-        {
-            AddLine("< " + msg.Text, MsgColor);
-        }
-
-        private void HandleConCmdReg(MsgConCmdReg msg)
-        {
-            foreach (var cmd in msg.Commands)
-            {
-                var commandName = cmd.Name;
-
-                // Do not do duplicate commands.
-                if (_commands.ContainsKey(commandName))
-                {
-                    Logger.DebugS("console", $"Server sent console command {commandName}, but we already have one with the same name. Ignoring.");
-                    continue;
-                }
-
-                var command = new ServerDummyCommand(commandName, cmd.Help, cmd.Description);
-                _commands[commandName] = command;
-            }
-        }
-
-        /// <summary>
-        ///     Processes commands (chat messages starting with /)
-        /// </summary>
-        /// <param name="text">input text</param>
-        public void ProcessCommand(string text)
-        {
-            if (string.IsNullOrWhiteSpace(text))
-                return;
-
-            // echo the command locally
-            AddLine("> " + text, Color.Lime);
-
-            //Commands are processed locally and then sent to the server to be processed there again.
-            var args = new List<string>();
-
-            CommandParsing.ParseArguments(text, args);
-
-            var commandname = args[0];
-
-            var forward = true;
-            if (_commands.ContainsKey(commandname))
-            {
-                var command = _commands[commandname];
-                args.RemoveAt(0);
-                forward = command.Execute(this, args.ToArray());
-            }
-            else if (!_network.IsConnected)
-            {
-                AddLine("Unknown command: " + commandname, Color.Red);
-                return;
-            }
-
-            if (forward)
-                SendServerConsoleCommand(text);
-        }
-
-        /// <summary>
-        ///     Locates and registeres all local commands.
-        /// </summary>
-        private void InitializeCommands()
-        {
-            foreach (var t in _reflectionManager.GetAllChildren<IConsoleCommand>())
-            {
-                var instance = (IConsoleCommand)Activator.CreateInstance(t)!;
-                if (_commands.ContainsKey(instance.Command))
-                    throw new InvalidOperationException($"Command already registered: {instance.Command}");
-
-                _commands[instance.Command] = instance;
-            }
-        }
-
-        /// <summary>
-        ///     Requests remote commands from server.
-        /// </summary>
-        public void SendServerCommandRequest()
-        {
-            if (_requestedCommands)
-                return;
-
-            if (!_network.IsConnected)
-                return;
-
-            var msg = _network.CreateNetMessage<MsgConCmdReg>();
-            _network.ClientSendMessage(msg);
-
-            _requestedCommands = true;
-        }
-
-        /// <summary>
-        ///     Sends a command directly to the server.
-        /// </summary>
-        private void SendServerConsoleCommand(string text)
-        {
-            if (_network == null || !_network.IsConnected)
-                return;
-
-            var msg = _network.CreateNetMessage<MsgConCmd>();
-            msg.Text = text;
-            _network.ClientSendMessage(msg);
-        }
-
-        public void AddFormattedLine(FormattedMessage message)
-        {
-            // Why the hell does this class implement IDebugConsole.
-            AddFormatted?.Invoke(this, new AddFormattedMessageArgs(message));
-        }
-    }
-
-    /// <summary>
-    ///     These dummies are made purely so list and help can list server-side commands.
-    /// </summary>
-    [Reflect(false)]
-    internal class ServerDummyCommand : IConsoleCommand
-    {
-        internal ServerDummyCommand(string command, string help, string description)
-        {
-            Command = command;
-            Help = help;
-            Description = description;
-        }
-
-        public string Command { get; }
-
-        public string Help { get; }
-
-        public string Description { get; }
-
-        // Always forward to server.
-        public bool Execute(IDebugConsole console, params string[] args)
-        {
-            return true;
-        }
-    }
-}

Robust.Client/Console/ClientConsoleHost.cs

@@ -0,0 +1,218 @@
+using System;
+using System.Collections.Generic;
+using Robust.Client.Log;
+using Robust.Shared.Console;
+using Robust.Shared.Log;
+using Robust.Shared.Network;
+using Robust.Shared.Network.Messages;
+using Robust.Shared.Players;
+using Robust.Shared.Reflection;
+using Robust.Shared.Utility;
+
+namespace Robust.Client.Console
+{
+    public class AddStringArgs : EventArgs
+    {
+        public string Text { get; }
+
+        public bool Local { get; }
+
+        public bool Error { get; }
+
+        public AddStringArgs(string text, bool local, bool error)
+        {
+            Text = text;
+            Local = local;
+            Error = error;
+        }
+    }
+
+    public class AddFormattedMessageArgs : EventArgs
+    {
+        public readonly FormattedMessage Message;
+
+        public AddFormattedMessageArgs(FormattedMessage message)
+        {
+            Message = message;
+        }
+    }
+    
+    /// <inheritdoc cref="IClientConsoleHost" />
+    internal class ClientConsoleHost : ConsoleHost, IClientConsoleHost
+    {
+        private bool _requestedCommands;
+
+        /// <inheritdoc />
+        public void Initialize()
+        {
+            NetManager.RegisterNetMessage<MsgConCmdReg>(MsgConCmdReg.NAME, HandleConCmdReg);
+            NetManager.RegisterNetMessage<MsgConCmdAck>(MsgConCmdAck.NAME, HandleConCmdAck);
+            NetManager.RegisterNetMessage<MsgConCmd>(MsgConCmd.NAME, ProcessCommand);
+
+            Reset();
+            LogManager.RootSawmill.AddHandler(new DebugConsoleLogHandler(this));
+        }
+
+        private void ProcessCommand(MsgConCmd message)
+        {
+            string? text = message.Text;
+            LogManager.GetSawmill(SawmillName).Info($"SERVER:{text}");
+
+            ExecuteCommand(null, text);
+        }
+
+        /// <inheritdoc />
+        public void Reset()
+        {
+            AvailableCommands.Clear();
+            _requestedCommands = false;
+            NetManager.Connected += OnNetworkConnected;
+
+            LoadConsoleCommands();
+            SendServerCommandRequest();
+        }
+
+        /// <inheritdoc />
+        public event EventHandler<AddStringArgs>? AddString;
+
+        /// <inheritdoc />
+        public event EventHandler<AddFormattedMessageArgs>? AddFormatted;
+
+        /// <inheritdoc />
+        public void AddFormattedLine(FormattedMessage message)
+        {
+            AddFormatted?.Invoke(this, new AddFormattedMessageArgs(message));
+        }
+
+        /// <inheritdoc />
+        public override void WriteError(ICommonSession? session, string text)
+        {
+            OutputText(text, true, true);
+        }
+
+        /// <inheritdoc />
+        public override void ExecuteCommand(ICommonSession? session, string command)
+        {
+            if (string.IsNullOrWhiteSpace(command))
+                return;
+
+            // echo the command locally
+            WriteError(null, "> " + command);
+
+            //Commands are processed locally and then sent to the server to be processed there again.
+            var args = new List<string>();
+
+            CommandParsing.ParseArguments(command, args);
+
+            var commandName = args[0];
+
+            if (AvailableCommands.ContainsKey(commandName))
+            {
+                var command1 = AvailableCommands[commandName];
+                args.RemoveAt(0);
+                command1.Execute(new ConsoleShell(this, null), command, args.ToArray());
+            }
+            else
+                WriteError(null, "Unknown command: " + commandName);
+        }
+
+        /// <inheritdoc />
+        public override void RemoteExecuteCommand(ICommonSession? session, string command)
+        {
+            if (!NetManager.IsConnected) // we don't care about session on client
+                return;
+
+            var msg = NetManager.CreateNetMessage<MsgConCmd>();
+            msg.Text = command;
+            NetManager.ClientSendMessage(msg);
+        }
+
+        /// <inheritdoc />
+        public override void WriteLine(ICommonSession? session, string text)
+        {
+            OutputText(text, true, false);
+        }
+
+        /// <inheritdoc />
+        public void Dispose()
+        {
+            // We don't have anything to dispose.
+        }
+
+        private void OutputText(string text, bool local, bool error)
+        {
+            AddString?.Invoke(this, new AddStringArgs(text, local, error));
+        }
+
+        private void OnNetworkConnected(object? sender, NetChannelArgs netChannelArgs)
+        {
+            SendServerCommandRequest();
+        }
+
+        private void HandleConCmdAck(MsgConCmdAck msg)
+        {
+            OutputText("< " + msg.Text, false, msg.Error);
+        }
+
+        private void HandleConCmdReg(MsgConCmdReg msg)
+        {
+            foreach (var cmd in msg.Commands)
+            {
+                string? commandName = cmd.Name;
+
+                // Do not do duplicate commands.
+                if (AvailableCommands.ContainsKey(commandName))
+                {
+                    Logger.DebugS("console", $"Server sent console command {commandName}, but we already have one with the same name. Ignoring.");
+                    continue;
+                }
+
+                var command = new ServerDummyCommand(commandName, cmd.Help, cmd.Description);
+                AvailableCommands[commandName] = command;
+            }
+        }
+
+        /// <summary>
+        /// Requests remote commands from server.
+        /// </summary>
+        private void SendServerCommandRequest()
+        {
+            if (_requestedCommands)
+                return;
+
+            if (!NetManager.IsConnected)
+                return;
+
+            var msg = NetManager.CreateNetMessage<MsgConCmdReg>();
+            NetManager.ClientSendMessage(msg);
+
+            _requestedCommands = true;
+        }
+    }
+
+    /// <summary>
+    /// These dummies are made purely so list and help can list server-side commands.
+    /// </summary>
+    [Reflect(false)]
+    internal class ServerDummyCommand : IConsoleCommand
+    {
+        internal ServerDummyCommand(string command, string help, string description)
+        {
+            Command = command;
+            Help = help;
+            Description = description;
+        }
+
+        public string Command { get; }
+
+        public string Description { get; }
+
+        public string Help { get; }
+
+        // Always forward to server.
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
+        {
+            shell.RemoteExecuteCommand(argStr);
+        }
+    }
+}

Robust.Client/Console/Commands/AddCompCommand.cs

@@ -0,0 +1,66 @@
+using JetBrains.Annotations;
+using Robust.Shared.Console;
+using Robust.Shared.GameObjects;
+using Robust.Shared.IoC;
+
+namespace Robust.Client.Console.Commands
+{
+    [UsedImplicitly]
+    internal sealed class AddCompCommand : IConsoleCommand
+    {
+        public string Command => "addcompc";
+        public string Description => "Adds a component to an entity on the client";
+        public string Help => "addcompc <uid> <componentName>";
+
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
+        {
+
+            if (args.Length != 2)
+            {
+                shell.WriteLine("Wrong number of arguments");
+                return;
+            }
+
+            var entityUid = EntityUid.Parse(args[0]);
+            var componentName = args[1];
+
+            var compManager = IoCManager.Resolve<IComponentManager>();
+            var compFactory = IoCManager.Resolve<IComponentFactory>();
+            var entityManager = IoCManager.Resolve<IEntityManager>();
+
+            var entity = entityManager.GetEntity(entityUid);
+            var component = (Component) compFactory.GetComponent(componentName);
+
+            component.Owner = entity;
+
+            compManager.AddComponent(entity, component);
+        }
+    }
+
+    [UsedImplicitly]
+    internal sealed class RemoveCompCommand : IConsoleCommand
+    {
+        public string Command => "rmcompc";
+        public string Description => "Removes a component from an entity.";
+        public string Help => "rmcompc <uid> <componentName>";
+
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
+        {
+            if (args.Length != 2)
+            {
+                shell.WriteLine("Wrong number of arguments");
+                return;
+            }
+
+            var entityUid = EntityUid.Parse(args[0]);
+            var componentName = args[1];
+
+            var compManager = IoCManager.Resolve<IComponentManager>();
+            var compFactory = IoCManager.Resolve<IComponentFactory>();
+
+            var registration = compFactory.GetRegistration(componentName);
+
+            compManager.RemoveComponent(entityUid, registration.Type);
+        }
+    }
+}

Robust.Client/Console/Commands/ClientSpawnCommand.cs

@@ -1,7 +1,7 @@
 using JetBrains.Annotations;
-using Robust.Client.Interfaces.Console;
 using Robust.Client.Player;
-using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.Console;
+using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
 
 namespace Robust.Client.Console.Commands
@@ -13,18 +13,17 @@ namespace Robust.Client.Console.Commands
         public string Description => "Spawns a client-side entity with specific type at your feet.";
         public string Help => "cspawn <entity type>";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var player = IoCManager.Resolve<IPlayerManager>().LocalPlayer;
             if (player?.ControlledEntity == null)
             {
-                console.AddLine("You don't have an attached entity.");
-                return false;
+                shell.WriteLine("You don't have an attached entity.");
+                return;
             }
 
             var entityManager = IoCManager.Resolve<IEntityManager>();
             entityManager.SpawnEntity(args[0], player.ControlledEntity.Transform.Coordinates);
-            return false;
         }
     }
 }

Robust.Client/Console/Commands/ConfigurationCommands.cs

@@ -1,23 +1,21 @@
 using System;
 using System.Linq;
 using JetBrains.Annotations;
-using Robust.Client.Interfaces.Console;
 using Robust.Shared.Configuration;
-using Robust.Shared.Interfaces.Configuration;
+using Robust.Shared.Console;
 using Robust.Shared.IoC;
-using Robust.Shared.Maths;
 
 namespace Robust.Client.Console.Commands
 {
     [UsedImplicitly]
     internal sealed class CVarCommand : SharedCVarCommand, IConsoleCommand
     {
-        public bool Execute(IDebugConsole console, params string[] args)
+        public override void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             if (args.Length < 1 || args.Length > 2)
             {
-                console.AddLine("Must provide exactly one or two arguments.", Color.Red);
-                return false;
+                shell.WriteError("Must provide exactly one or two arguments.");
+                return;
             }
 
             var configManager = IoCManager.Resolve<IConfigurationManager>();
@@ -26,21 +24,21 @@ namespace Robust.Client.Console.Commands
             if (name == "?")
             {
                 var cvars = configManager.GetRegisteredCVars().OrderBy(c => c);
-                console.AddLine(string.Join("\n", cvars));
-                return false;
+                shell.WriteLine(string.Join("\n", cvars));
+                return;
             }
 
             if (!configManager.IsCVarRegistered(name))
             {
-                console.AddLine($"CVar '{name}' is not registered. Use 'cvar ?' to get a list of all registered CVars.", Color.Red);
-                return false;
+                shell.WriteError($"CVar '{name}' is not registered. Use 'cvar ?' to get a list of all registered CVars.");
+                return;
             }
 
             if (args.Length == 1)
             {
                 // Read CVar
                 var value = configManager.GetCVar<object>(name);
-                console.AddLine(value.ToString() ?? "");
+                shell.WriteLine(value.ToString() ?? "");
             }
             else
             {
@@ -54,11 +52,9 @@ namespace Robust.Client.Console.Commands
                 }
                 catch (FormatException)
                 {
-                    console.AddLine($"Input value is in incorrect format for type {type}");
+                    shell.WriteLine($"Input value is in incorrect format for type {type}");
                 }
             }
-
-            return false;
         }
     }
 
@@ -69,10 +65,9 @@ namespace Robust.Client.Console.Commands
         public string Description => "Saves the client configuration to the config file";
         public string Help => "saveconfig";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             IoCManager.Resolve<IConfigurationManager>().SaveToFile();
-            return false;
         }
     }
 

Robust.Client/Console/Commands/ConsoleCommands.cs

@@ -1,13 +1,8 @@
-// This file is for commands that do something to the console itself.
+// This file is for commands that do something to the console itself.
 // Not some generic console command type.
 // Couldn't think of a better name sorry.
 
-using System;
-using Robust.Client.Interfaces.Console;
 using Robust.Shared.Console;
-using Robust.Shared.Interfaces.Random;
-using Robust.Shared.IoC;
-using Robust.Shared.Maths;
 
 namespace Robust.Client.Console.Commands
 {
@@ -17,10 +12,9 @@ namespace Robust.Client.Console.Commands
         public string Help => "Clears the debug console of all messages.";
         public string Description => "Clears the console.";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
-            console.Clear();
-            return false;
+            shell.Clear();
         }
     }
 
@@ -30,15 +24,12 @@ namespace Robust.Client.Console.Commands
         public string Help => "Fills the console with some nonsense for debugging.";
         public string Description => "Fill up the console for debugging.";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
-            Color[] colors = { Color.Green, Color.Blue, Color.Red };
-            var random = IoCManager.Resolve<IRobustRandom>();
             for (int x = 0; x < 50; x++)
             {
-                console.AddLine("filling...", colors[random.Next(0, colors.Length)]);
+                shell.WriteLine("filling...");
             }
-            return false;
         }
     }
 }

Robust.Client/Console/Commands/Debug.cs

@@ -6,37 +6,25 @@ using System.IO;
 using System.Linq;
 using System.Reflection;
 using System.Runtime;
-using System.Runtime.InteropServices;
 using System.Text;
 using System.Text.RegularExpressions;
 using Robust.Client.Input;
-using System.Threading;
-using Robust.Client.Interfaces;
-using Robust.Client.Interfaces.Console;
-using Robust.Client.Interfaces.Debugging;
-using Robust.Client.Interfaces.Graphics;
-using Robust.Client.Interfaces.Graphics.ClientEye;
-using Robust.Client.Interfaces.Graphics.Lighting;
-using Robust.Client.Interfaces.Input;
-using Robust.Client.Interfaces.ResourceManagement;
-using Robust.Client.Interfaces.State;
-using Robust.Client.Interfaces.UserInterface;
+using Robust.Client.Debugging;
+using Robust.Client.Graphics;
+using Robust.Client.ResourceManagement;
 using Robust.Client.ResourceManagement.ResourceTypes;
 using Robust.Client.UserInterface;
 using Robust.Client.UserInterface.Controls;
 using Robust.Client.UserInterface.CustomControls;
 using Robust.Shared.Asynchronous;
+using Robust.Shared.Console;
 using Robust.Shared.ContentPack;
 using Robust.Shared.GameObjects;
-using Robust.Shared.GameObjects.Components.Transform;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.Map;
-using Robust.Shared.Interfaces.Network;
-using Robust.Shared.Interfaces.Reflection;
-using Robust.Shared.Interfaces.Resources;
 using Robust.Shared.IoC;
 using Robust.Shared.Map;
 using Robust.Shared.Maths;
+using Robust.Shared.Network;
+using Robust.Shared.Reflection;
 using Robust.Shared.Serialization;
 using Robust.Shared.Utility;
 using Robust.Shared.ViewVariables;
@@ -49,16 +37,14 @@ namespace Robust.Client.Console.Commands
         public string Help => "Dump entity list";
         public string Description => "Dumps entity list of UIDs and prototype.";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var entityManager = IoCManager.Resolve<IEntityManager>();
 
             foreach (var e in entityManager.GetEntities().OrderBy(e => e.Uid))
             {
-                console.AddLine($"entity {e.Uid}, {e.Prototype?.ID}, {e.Transform.Coordinates}.", Color.White);
+                shell.WriteLine($"entity {e.Uid}, {e.Prototype?.ID}, {e.Transform.Coordinates}.");
             }
-
-            return false;
         }
     }
 
@@ -68,12 +54,12 @@ namespace Robust.Client.Console.Commands
         public string Help => "Usage: getcomponentregistration <componentName>";
         public string Description => "Gets component registration information";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             if (args.Length < 1)
             {
-                console.AddLine(Help);
-                return false;
+                shell.WriteLine(Help);
+                return;
             }
 
             var componentFactory = IoCManager.Resolve<IComponentFactory>();
@@ -94,19 +80,17 @@ namespace Robust.Client.Console.Commands
 
                 message.Append($", NSE: {registration.NetworkSynchronizeExistence}, references:");
 
-                console.AddLine(message.ToString(), Color.White);
+                shell.WriteLine(message.ToString());
 
                 foreach (var type in registration.References)
                 {
-                    console.AddLine($"  {type}", Color.White);
+                    shell.WriteLine($"  {type}");
                 }
             }
             catch (UnknownComponentException)
             {
-                console.AddLine($"No registration found for '{args[0]}'", Color.Red);
+                shell.WriteError($"No registration found for '{args[0]}'");
             }
-
-            return false;
         }
     }
 
@@ -119,14 +103,14 @@ namespace Robust.Client.Console.Commands
 
         public string Description => "Toggles a debug monitor in the F3 menu.";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var monitor = IoCManager.Resolve<IUserInterfaceManager>().DebugMonitors;
 
             if (args.Length != 1)
             {
-                console.AddLine(Help);
-                return false;
+                shell.WriteLine(Help);
+                return;
             }
 
             switch (args[0])
@@ -159,11 +143,9 @@ namespace Robust.Client.Console.Commands
                     monitor.ShowInput ^= true;
                     break;
                 default:
-                    console.AddLine($"Invalid key: {args[0]}");
+                    shell.WriteLine($"Invalid key: {args[0]}");
                     break;
             }
-
-            return false;
         }
     }
 
@@ -173,7 +155,7 @@ namespace Robust.Client.Console.Commands
         public string Help => "Throws an exception";
         public string Description => "Throws an exception";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             throw new InvalidOperationException("Fuck");
         }
@@ -185,11 +167,10 @@ namespace Robust.Client.Console.Commands
         public string Help => "";
         public string Description => "Enables debug drawing over all bounding boxes in the game, showing their size.";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var mgr = IoCManager.Resolve<IDebugDrawing>();
             mgr.DebugColliders = !mgr.DebugColliders;
-            return false;
         }
     }
 
@@ -199,11 +180,10 @@ namespace Robust.Client.Console.Commands
         public string Help => "";
         public string Description => "Enables debug drawing over all entity positions in the game.";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var mgr = IoCManager.Resolve<IDebugDrawing>();
             mgr.DebugPositions = !mgr.DebugPositions;
-            return false;
         }
     }
 
@@ -213,25 +193,24 @@ namespace Robust.Client.Console.Commands
         public string Help => "Usage: showrays <raylifetime>";
         public string Description => "Toggles debug drawing of physics rays. An integer for <raylifetime> must be provided";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             if (args.Length != 1)
             {
-                console.AddLine(Help);
-                return false;
+                shell.WriteLine(Help);
+                return;
             }
 
             if (!int.TryParse(args[0], out var id))
             {
-                console.AddLine($"{args[0]} is not a valid integer.",Color.Red);
-                return false;
+                shell.WriteError($"{args[0]} is not a valid integer.");
+                return;
             }
 
             var mgr = IoCManager.Resolve<IDebugDrawingManager>();
             mgr.DebugDrawRays = !mgr.DebugDrawRays;
-            console.AddLine("Toggled showing rays to:" + mgr.DebugDrawRays.ToString(), Color.Green);
+            shell.WriteError("Toggled showing rays to:" + mgr.DebugDrawRays.ToString());
             mgr.DebugRayLifetime = TimeSpan.FromSeconds((double)int.Parse(args[0], CultureInfo.InvariantCulture));
-            return false;
         }
     }
 
@@ -241,10 +220,9 @@ namespace Robust.Client.Console.Commands
         public string Help => "";
         public string Description => "Immediately disconnect from the server and go back to the main menu.";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             IoCManager.Resolve<IClientNetManager>().ClientDisconnect("Disconnect command used.");
-            return false;
         }
     }
 
@@ -257,33 +235,33 @@ namespace Robust.Client.Console.Commands
 
         public string Description => "Displays verbose diagnostics for an entity.";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             if (args.Length != 1)
             {
-                console.AddLine(Help);
-                return false;
+                shell.WriteLine(Help);
+                return;
             }
 
             if ((!new Regex(@"^c?[0-9]+$").IsMatch(args[0])))
             {
-                console.AddLine("Malformed UID", Color.Red);
-                return false;
+                shell.WriteError("Malformed UID");
+                return;
             }
 
             var uid = EntityUid.Parse(args[0]);
             var entmgr = IoCManager.Resolve<IEntityManager>();
             if (!entmgr.TryGetEntity(uid, out var entity))
             {
-                console.AddLine("That entity does not exist. Sorry lad.", Color.Red);
-                return false;
+                shell.WriteError("That entity does not exist. Sorry lad.");
+                return;
             }
 
-            console.AddLine($"{entity.Uid}: {entity.Prototype?.ID}/{entity.Name}");
-            console.AddLine($"init/del/lmt: {entity.Initialized}/{entity.Deleted}/{entity.LastModifiedTick}");
+            shell.WriteLine($"{entity.Uid}: {entity.Prototype?.ID}/{entity.Name}");
+            shell.WriteLine($"init/del/lmt: {entity.Initialized}/{entity.Deleted}/{entity.LastModifiedTick}");
             foreach (var component in entity.GetAllComponents())
             {
-                console.AddLine(component.ToString() ?? "");
+                shell.WriteLine(component.ToString() ?? "");
                 if (component is IComponentDebug debug)
                 {
                     foreach (var line in debug.GetDebugString().Split('\n'))
@@ -293,12 +271,10 @@ namespace Robust.Client.Console.Commands
                             continue;
                         }
 
-                        console.AddLine("\t" + line);
+                        shell.WriteLine("\t" + line);
                     }
                 }
             }
-
-            return false;
         }
     }
 
@@ -308,12 +284,12 @@ namespace Robust.Client.Console.Commands
         public string Help => "sggcell <gridID> <vector2i> [offset]\nThat vector2i param is in the form x<int>,y<int>.";
         public string Description => "Lists entities on a snap grid cell.";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             if (args.Length != 2 && args.Length != 3)
             {
-                console.AddLine(Help);
-                return false;
+                shell.WriteLine(Help);
+                return;
             }
 
             string gridId = args[0];
@@ -322,14 +298,14 @@ namespace Robust.Client.Console.Commands
 
             if (!int.TryParse(args[0], out var id))
             {
-                console.AddLine($"{args[0]} is not a valid integer.",Color.Red);
-                return false;
+                shell.WriteError($"{args[0]} is not a valid integer.");
+                return;
             }
 
             if (!new Regex(@"^-?[0-9]+,-?[0-9]+$").IsMatch(indices))
             {
-                console.AddLine("mapIndicies must be of form x<int>,y<int>", Color.Red);
-                return false;
+                shell.WriteError("mapIndicies must be of form x<int>,y<int>");
+                return;
             }
 
             SnapGridOffset selectedOffset;
@@ -339,8 +315,8 @@ namespace Robust.Client.Console.Commands
             }
             else
             {
-                console.AddLine("given offset type is not defined", Color.Red);
-                return false;
+                shell.WriteError("given offset type is not defined");
+                return;
             }
 
             var mapMan = IoCManager.Resolve<IMapManager>();
@@ -354,16 +330,13 @@ namespace Robust.Client.Console.Commands
                             int.Parse(indices.Split(',')[1], CultureInfo.InvariantCulture)),
                         selectedOffset))
                 {
-                    console.AddLine(entity.Owner.Uid.ToString());
+                    shell.WriteLine(entity.Owner.Uid.ToString());
                 }
             }
             else
             {
-                console.AddLine("grid does not exist", Color.Red);
-                return false;
+                shell.WriteError("grid does not exist");
             }
-
-            return false;
         }
     }
 
@@ -373,19 +346,17 @@ namespace Robust.Client.Console.Commands
         public string Description => "Changes the name used when attempting to connect to the server.";
         public string Help => Command + " <name>";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             if (args.Length < 1)
             {
-                console.AddLine(Help);
-                return false;
+                shell.WriteLine(Help);
+                return;
             }
             var client = IoCManager.Resolve<IBaseClient>();
             client.PlayerNameOverride = args[0];
 
-            console.AddLine($"Overriding player name to \"{args[0]}\".", Color.White);
-
-            return false;
+            shell.WriteLine($"Overriding player name to \"{args[0]}\".");
         }
     }
 
@@ -395,12 +366,12 @@ namespace Robust.Client.Console.Commands
         public string Description => "Pre-caches a resource.";
         public string Help => "ldrsc <path> <type>";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             if (args.Length < 2)
             {
-                console.AddLine(Help);
-                return false;
+                shell.WriteLine(Help);
+                return;
             }
             var resourceCache = IoCManager.Resolve<IResourceCache>();
             var reflection = IoCManager.Resolve<IReflectionManager>();
@@ -412,8 +383,8 @@ namespace Robust.Client.Console.Commands
             }
             catch(ArgumentException)
             {
-                console.AddLine("Unable to find type", Color.Red);
-                return false;
+                shell.WriteError("Unable to find type");
+                return;
             }
 
             var getResourceMethod =
@@ -423,7 +394,6 @@ namespace Robust.Client.Console.Commands
             DebugTools.Assert(getResourceMethod != null);
             var generic = getResourceMethod!.MakeGenericMethod(type);
             generic.Invoke(resourceCache, new object[] { args[0], true });
-            return false;
         }
     }
 
@@ -433,12 +403,12 @@ namespace Robust.Client.Console.Commands
         public string Description => "Reloads a resource.";
         public string Help => "rldrsc <path> <type>";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             if (args.Length < 2)
             {
-                console.AddLine(Help);
-                return false;
+                shell.WriteLine(Help);
+                return;
             }
             var resourceCache = IoCManager.Resolve<IResourceCache>();
             var reflection = IoCManager.Resolve<IReflectionManager>();
@@ -450,15 +420,14 @@ namespace Robust.Client.Console.Commands
             }
             catch(ArgumentException)
             {
-                console.AddLine("Unable to find type", Color.Red);
-                return false;
+                shell.WriteError("Unable to find type");
+                return;
             }
 
             var getResourceMethod = resourceCache.GetType().GetMethod("ReloadResource", new[] { typeof(string) });
             DebugTools.Assert(getResourceMethod != null);
             var generic = getResourceMethod!.MakeGenericMethod(type);
             generic.Invoke(resourceCache, new object[] { args[0] });
-            return false;
         }
     }
 
@@ -468,18 +437,18 @@ namespace Robust.Client.Console.Commands
         public string Description => "Gets the tile count of a grid";
         public string Help => "Usage: gridtc <gridId>";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             if (args.Length != 1)
             {
-                console.AddLine(Help);
-                return false;
+                shell.WriteLine(Help);
+                return;
             }
 
             if (!int.TryParse(args[0], out var id))
             {
-                console.AddLine($"{args[0]} is not a valid integer.");
-                return false;
+                shell.WriteLine($"{args[0]} is not a valid integer.");
+                return;
             }
 
             var gridId = new GridId(int.Parse(args[0]));
@@ -487,13 +456,11 @@ namespace Robust.Client.Console.Commands
 
             if (mapManager.TryGetGrid(gridId, out var grid))
             {
-                console.AddLine(mapManager.GetGrid(gridId).GetAllTiles().Count().ToString());
-                return false;
+                shell.WriteLine(mapManager.GetGrid(gridId).GetAllTiles().Count().ToString());
             }
             else
             {
-                console.AddLine($"No grid exists with id {id}",Color.Red);
-                return false;
+                shell.WriteError($"No grid exists with id {id}");
             }
         }
     }
@@ -504,7 +471,7 @@ namespace Robust.Client.Console.Commands
         public string Description => "Dump GUI tree to /guidump.txt in user data.";
         public string Help => "guidump";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var root = IoCManager.Resolve<IUserInterfaceManager>().RootControl;
             var res = IoCManager.Resolve<IResourceManager>();
@@ -514,8 +481,6 @@ namespace Robust.Client.Console.Commands
             {
                 _writeNode(root, 0, writer);
             }
-
-            return false;
         }
 
         private static void _writeNode(Control control, int indents, TextWriter writer)
@@ -575,7 +540,7 @@ namespace Robust.Client.Console.Commands
         public string Description => "Open a dummy UI testing window";
         public string Help => "uitest";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var window = new SS14Window { CustomMinimumSize = (500, 400)};
             var tabContainer = new TabContainer();
@@ -667,8 +632,6 @@ namespace Robust.Client.Console.Commands
             });
 
             window.OpenCentered();
-
-            return false;
         }
     }
 
@@ -678,11 +641,10 @@ namespace Robust.Client.Console.Commands
         public string Description => "Sets the system clipboard";
         public string Help => "setclipboard <text>";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var mgr = IoCManager.Resolve<IClipboardManager>();
             mgr.SetText(args[0]);
-            return false;
         }
     }
 
@@ -692,11 +654,10 @@ namespace Robust.Client.Console.Commands
         public string Description => "Gets the system clipboard";
         public string Help => "getclipboard";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var mgr = IoCManager.Resolve<IClipboardManager>();
-            console.AddLine(mgr.GetText());
-            return false;
+            shell.WriteLine(mgr.GetText());
         }
     }
 
@@ -706,11 +667,11 @@ namespace Robust.Client.Console.Commands
         public string Description => "Toggles light rendering.";
         public string Help => "togglelight";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var mgr = IoCManager.Resolve<ILightManager>();
-            mgr.Enabled = !mgr.Enabled;
-            return false;
+            if (!mgr.LockConsoleAccess)
+                mgr.Enabled = !mgr.Enabled;
         }
     }
 
@@ -720,12 +681,11 @@ namespace Robust.Client.Console.Commands
         public string Description => "Toggles fov for client.";
         public string Help => "togglefov";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
           var mgr = IoCManager.Resolve<IEyeManager>();
           if (mgr.CurrentEye != null)
               mgr.CurrentEye.DrawFov = !mgr.CurrentEye.DrawFov;
-          return false;
         }
     }
 
@@ -735,11 +695,11 @@ namespace Robust.Client.Console.Commands
         public string Description => "Toggles hard fov for client (for debugging space-station-14#2353).";
         public string Help => "togglehardfov";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var mgr = IoCManager.Resolve<ILightManager>();
-            mgr.DrawHardFov = !mgr.DrawHardFov;
-            return false;
+            if (!mgr.LockConsoleAccess)
+                mgr.DrawHardFov = !mgr.DrawHardFov;
         }
     }
 
@@ -749,11 +709,24 @@ namespace Robust.Client.Console.Commands
         public string Description => "Toggles shadow rendering.";
         public string Help => "toggleshadows";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var mgr = IoCManager.Resolve<ILightManager>();
-            mgr.DrawShadows = !mgr.DrawShadows;
-            return false;
+            if (!mgr.LockConsoleAccess)
+                mgr.DrawShadows = !mgr.DrawShadows;
+        }
+    }
+    internal class ToggleLightBuf : IConsoleCommand
+    {
+        public string Command => "togglelightbuf";
+        public string Description => "Toggles lighting rendering. This includes shadows but not FOV.";
+        public string Help => "togglelightbuf";
+
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
+        {
+            var mgr = IoCManager.Resolve<ILightManager>();
+            if (!mgr.LockConsoleAccess)
+                mgr.DrawLighting = !mgr.DrawLighting;
         }
     }
 
@@ -763,7 +736,7 @@ namespace Robust.Client.Console.Commands
         public string Description => "Run the GC.";
         public string Help => "gc [generation]";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             if (args.Length == 0)
             {
@@ -774,10 +747,21 @@ namespace Robust.Client.Console.Commands
                 if (int.TryParse(args[0], out int result))
                     GC.Collect(result);
                 else
-                    console.AddLine("Failed to parse argument.",Color.Red);
+                    shell.WriteError("Failed to parse argument.");
             }
+        }
+    }
 
-            return false;
+    internal class GcFullCommand : IConsoleCommand
+    {
+        public string Command => "gcf";
+        public string Description => "Run the GC, fully, compacting LOH and everything.";
+        public string Help => "gcf";
+
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
+        {
+            GCSettings.LargeObjectHeapCompactionMode = GCLargeObjectHeapCompactionMode.CompactOnce;
+            GC.Collect(2, GCCollectionMode.Forced, true, true);
         }
     }
 
@@ -790,16 +774,16 @@ namespace Robust.Client.Console.Commands
 
         public string Help => "gc_mode\nSee current GC Latencymode\ngc_mode [type]\n Change GC Latency mode to [type]";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var prevMode = GCSettings.LatencyMode;
             if (args.Length == 0)
             {
-                console.AddLine($"current gc latency mode: {(int) prevMode} ({prevMode})");
-                console.AddLine("possible modes:");
+                shell.WriteLine($"current gc latency mode: {(int) prevMode} ({prevMode})");
+                shell.WriteLine("possible modes:");
                 foreach (int mode in (int[]) Enum.GetValues(typeof(GCLatencyMode)))
                 {
-                    console.AddLine($" {mode}: {Enum.GetName(typeof(GCLatencyMode), mode)}");
+                    shell.WriteLine($" {mode}: {Enum.GetName(typeof(GCLatencyMode), mode)}");
                 }
             }
             else
@@ -811,16 +795,14 @@ namespace Robust.Client.Console.Commands
                 }
                 else if (!Enum.TryParse(args[0], true, out mode))
                 {
-                    console.AddLine($"unknown gc latency mode: {args[0]}");
-                    return false;
+                    shell.WriteLine($"unknown gc latency mode: {args[0]}");
+                    return;
                 }
 
-                console.AddLine($"attempting gc latency mode change: {(int) prevMode} ({prevMode}) -> {(int) mode} ({mode})");
+                shell.WriteLine($"attempting gc latency mode change: {(int) prevMode} ({prevMode}) -> {(int) mode} ({mode})");
                 GCSettings.LatencyMode = mode;
-                console.AddLine($"resulting gc latency mode: {(int) GCSettings.LatencyMode} ({GCSettings.LatencyMode})");
+                shell.WriteLine($"resulting gc latency mode: {(int) GCSettings.LatencyMode} ({GCSettings.LatencyMode})");
             }
-
-            return false;
         }
 
     }
@@ -834,15 +816,13 @@ namespace Robust.Client.Console.Commands
 
         public string Help => "szr_stats";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
 
-            console.AddLine($"serialized: {RobustSerializer.BytesSerialized} bytes, {RobustSerializer.ObjectsSerialized} objects");
-            console.AddLine($"largest serialized: {RobustSerializer.LargestObjectSerializedBytes} bytes, {RobustSerializer.LargestObjectSerializedType} objects");
-            console.AddLine($"deserialized: {RobustSerializer.BytesDeserialized} bytes, {RobustSerializer.ObjectsDeserialized} objects");
-            console.AddLine($"largest serialized: {RobustSerializer.LargestObjectDeserializedBytes} bytes, {RobustSerializer.LargestObjectDeserializedType} objects");
-
-            return false;
+            shell.WriteLine($"serialized: {RobustSerializer.BytesSerialized} bytes, {RobustSerializer.ObjectsSerialized} objects");
+            shell.WriteLine($"largest serialized: {RobustSerializer.LargestObjectSerializedBytes} bytes, {RobustSerializer.LargestObjectSerializedType} objects");
+            shell.WriteLine($"deserialized: {RobustSerializer.BytesDeserialized} bytes, {RobustSerializer.ObjectsDeserialized} objects");
+            shell.WriteLine($"largest serialized: {RobustSerializer.LargestObjectDeserializedBytes} bytes, {RobustSerializer.LargestObjectDeserializedType} objects");
         }
 
     }
@@ -853,7 +833,7 @@ namespace Robust.Client.Console.Commands
         public string Description => "Gets info about a chunk under your mouse cursor.";
         public string Help => Command;
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var mapMan = IoCManager.Resolve<IMapManager>();
             var inputMan = IoCManager.Resolve<IInputManager>();
@@ -863,8 +843,8 @@ namespace Robust.Client.Console.Commands
 
             if (!mapMan.TryFindGridAt(mousePos, out var grid))
             {
-                console.AddLine("No grid under your mouse cursor.");
-                return false;
+                shell.WriteLine("No grid under your mouse cursor.");
+                return;
             }
 
             var internalGrid = (IMapGridInternal)grid;
@@ -872,8 +852,7 @@ namespace Robust.Client.Console.Commands
             var chunkIndex = grid.LocalToChunkIndices(grid.MapToGrid(mousePos));
             var chunk = internalGrid.GetChunk(chunkIndex);
 
-            console.AddLine($"worldBounds: {chunk.CalcWorldBounds()} localBounds: {chunk.CalcLocalBounds()}");
-            return false;
+            shell.WriteLine($"worldBounds: {chunk.CalcWorldBounds()} localBounds: {chunk.CalcLocalBounds()}");
         }
     }
 
@@ -890,7 +869,7 @@ namespace Robust.Client.Console.Commands
 
         public static ConcurrentDictionary<string, bool>? _reloadShadersQueued = new();
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             IResourceCacheInternal resC;
             if (args.Length == 1)
@@ -899,8 +878,8 @@ namespace Robust.Client.Console.Commands
                 {
                     if (_watchers != null)
                     {
-                        console.AddLine("Already watching.");
-                        return false;
+                        shell.WriteLine("Already watching.");
+                        return;
                     }
                     resC = IoCManager.Resolve<IResourceCacheInternal>();
 
@@ -969,11 +948,11 @@ namespace Robust.Client.Console.Commands
                                         {
                                             IoCManager.Resolve<IResourceCache>()
                                                 .ReloadResource<ShaderSourceResource>(resPath);
-                                            console.AddLine($"Reloaded shader: {resPath}");
+                                            shell.WriteLine($"Reloaded shader: {resPath}");
                                         }
                                         catch (Exception)
                                         {
-                                            console.AddLine($"Failed to reload shader: {resPath}");
+                                            shell.WriteLine($"Failed to reload shader: {resPath}");
                                         }
 
                                         _reloadShadersQueued.TryRemove(ev.FullPath, out var _);
@@ -993,17 +972,17 @@ namespace Robust.Client.Console.Commands
                         ++created;
                     }
 
-                    console.AddLine($"Created {created} shader directory watchers for {shaderCount} shaders.");
+                    shell.WriteLine($"Created {created} shader directory watchers for {shaderCount} shaders.");
 
-                    return false;
+                    return;
                 }
 
                 if (args[0] == "-watch")
                 {
                     if (_watchers == null)
                     {
-                        console.AddLine("No shader directory watchers active.");
-                        return false;
+                        shell.WriteLine("No shader directory watchers active.");
+                        return;
                     }
 
                     var disposed = 0;
@@ -1015,19 +994,19 @@ namespace Robust.Client.Console.Commands
 
                     _watchers = null;
 
-                    console.AddLine($"Disposed of {disposed} shader directory watchers.");
+                    shell.WriteLine($"Disposed of {disposed} shader directory watchers.");
 
-                    return false;
+                    return;
                 }
             }
 
             if (args.Length > 1)
             {
-                console.AddLine("Not implemented.");
-                return false;
+                shell.WriteLine("Not implemented.");
+                return;
             }
 
-            console.AddLine("Reloading content shader resources...");
+            shell.WriteLine("Reloading content shader resources...");
 
             resC = IoCManager.Resolve<IResourceCacheInternal>();
 
@@ -1039,13 +1018,11 @@ namespace Robust.Client.Console.Commands
                 }
                 catch (Exception)
                 {
-                    console.AddLine($"Failed to reload shader: {path}");
+                    shell.WriteLine($"Failed to reload shader: {path}");
                 }
             }
 
-            console.AddLine("Done.");
-
-            return false;
+            shell.WriteLine("Done.");
         }
 
     }
@@ -1056,14 +1033,14 @@ namespace Robust.Client.Console.Commands
         public string Description => "Toggle fov and light debug layers";
         public string Help => "cldbglyr <layer>: Toggle <layer>\ncldbglyr: Turn all Layers off";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var clyde = IoCManager.Resolve<IClydeInternal>();
 
             if (args.Length < 1)
             {
                 clyde.DebugLayers = ClydeDebugLayers.None;
-                return false;
+                return;
             }
 
             clyde.DebugLayers = args[0] switch
@@ -1072,8 +1049,6 @@ namespace Robust.Client.Console.Commands
                 "light" => ClydeDebugLayers.Light,
                 _ => ClydeDebugLayers.None
             };
-
-            return false;
         }
     }
 
@@ -1083,12 +1058,12 @@ namespace Robust.Client.Console.Commands
         public string Description => "Keys key info for a key";
         public string Help => "keyinfo <Key>";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             if (args.Length != 1)
             {
-                console.AddLine(Help);
-                return false;
+                shell.WriteLine(Help);
+                return;
             }
 
             var clyde = IoCManager.Resolve<IClydeInternal>();
@@ -1101,15 +1076,13 @@ namespace Robust.Client.Console.Commands
                 var scanCode = clyde.GetKeyScanCode(key);
                 var nameScanCode = clyde.GetKeyNameScanCode(scanCode);
 
-                console.AddLine($"name: '{name}' scan code: '{scanCode}' name via scan code: '{nameScanCode}'");
+                shell.WriteLine($"name: '{name}' scan code: '{scanCode}' name via scan code: '{nameScanCode}'");
             }
             else if (int.TryParse(args[0], out var scanCode))
             {
                 var nameScanCode = clyde.GetKeyNameScanCode(scanCode);
-                console.AddLine($"name via scan code: '{nameScanCode}'");
+                shell.WriteLine($"name via scan code: '{nameScanCode}'");
             }
-
-            return false;
         }
     }
 }

Robust.Client/Console/Commands/DumpMetadataMembersCommand.cs

@@ -1,7 +1,6 @@
 using System;
-using Robust.Client.Interfaces.Console;
+using Robust.Shared.Console;
 using Robust.Shared.ContentPack;
-using Robust.Shared.Maths;
 
 namespace Robust.Client.Console.Commands
 {
@@ -12,23 +11,21 @@ namespace Robust.Client.Console.Commands
         public string Description => "Dumps a type's members in a format suitable for the sandbox configuration file.";
         public string Help => "Usage: dmetamem <type>";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var type = Type.GetType(args[0]);
 
             if (type == null)
             {
-                console.AddLine("That type does not exist", Color.Red);
-                return false;
+                shell.WriteError("That type does not exist");
+                return;
             }
 
             foreach (var sig in AssemblyTypeChecker.DumpMetaMembers(type))
             {
                 System.Console.WriteLine(@$"- ""{sig}""");
-                console.AddLine(sig);
+                shell.WriteLine(sig);
             }
-
-            return false;
         }
     }
 #endif

Robust.Client/Console/Commands/HelpCommands.cs

@@ -1,8 +1,7 @@
-using System.Linq;
-using Robust.Client.Interfaces.Console;
-using Robust.Shared.Interfaces.Network;
+using System.Linq;
+using Robust.Shared.Console;
 using Robust.Shared.IoC;
-using Robust.Shared.Maths;
+using Robust.Shared.Network;
 
 namespace Robust.Client.Console.Commands
 {
@@ -12,37 +11,36 @@ namespace Robust.Client.Console.Commands
         public string Help => "When no arguments are provided, displays a generic help text. When an argument is passed, display the help text for the command with that name.";
         public string Description => "Display help text.";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             switch (args.Length)
             {
                 case 0:
-                    console.AddLine("To display help for a specific command, write 'help <command>'. To list all available commands, write 'list'.");
+                    shell.WriteLine("To display help for a specific command, write 'help <command>'. To list all available commands, write 'list'.");
                     break;
 
                 case 1:
                     string commandname = args[0];
-                    if (!console.Commands.ContainsKey(commandname))
+                    if (!shell.ConsoleHost.RegisteredCommands.ContainsKey(commandname))
                     {
                         if (!IoCManager.Resolve<IClientNetManager>().IsConnected)
                         {
                             // No server so nothing to respond with unknown command.
-                            console.AddLine("Unknown command: " + commandname, Color.Red);
-                            return false;
+                            shell.WriteError("Unknown command: " + commandname);
+                            return;
                         }
                         // TODO: Maybe have a server side help?
-                        return false;
+                        return;
                     }
-                    IConsoleCommand command = console.Commands[commandname];
-                    console.AddLine(string.Format("{0} - {1}", command.Command, command.Description));
-                    console.AddLine(command.Help);
+                    IConsoleCommand command = shell.ConsoleHost.RegisteredCommands[commandname];
+                    shell.WriteLine(string.Format("{0} - {1}", command.Command, command.Description));
+                    shell.WriteLine(command.Help);
                     break;
 
                 default:
-                    console.AddLine("Invalid amount of arguments.", Color.Red);
+                    shell.WriteError("Invalid amount of arguments.");
                     break;
             }
-            return false;
         }
     }
 
@@ -55,7 +53,7 @@ namespace Robust.Client.Console.Commands
                               "only commands that contain the given string in their name will be listed.";
         public string Description => "List all commands, optionally with a filter.";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var filter = "";
             if (args.Length == 1)
@@ -64,14 +62,12 @@ namespace Robust.Client.Console.Commands
             }
 
             var conGroup = IoCManager.Resolve<IClientConGroupController>();
-            foreach (var command in console.Commands.Values
+            foreach (var command in shell.ConsoleHost.RegisteredCommands.Values
                 .Where(p => p.Command.Contains(filter) && conGroup.CanCommand(p.Command))
                 .OrderBy(c => c.Command))
             {
-                console.AddLine(command.Command + ": " + command.Description);
+                shell.WriteLine(command.Command + ": " + command.Description);
             }
-
-            return false;
         }
     }
 }

Robust.Client/Console/Commands/LauncherAuthCommand.cs

@@ -0,0 +1,67 @@
+#if !FULL_RELEASE
+using System;
+using System.IO;
+using System.Linq;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using Robust.Client.Utility;
+using Robust.Shared.Console;
+using Robust.Shared.IoC;
+using Robust.Shared.Network;
+
+namespace Robust.Client.Console.Commands
+{
+    internal sealed class LauncherAuthCommand : IConsoleCommand
+    {
+        public string Command => "launchauth";
+        public string Description => "Load authentication tokens from launcher data to aid in testing of live servers";
+        public string Help => "launchauth [account name]";
+
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
+        {
+            var wantName = args.Length > 0 ? args[0] : null;
+
+            var basePath = Path.GetDirectoryName(UserDataDir.GetUserDataDir())!;
+            var cfgPath = Path.Combine(basePath, "launcher", "launcher_config.json");
+
+            var data = JsonSerializer.Deserialize<LauncherConfig>(File.ReadAllText(cfgPath))!;
+
+            var login = wantName != null
+                ? data.Logins.FirstOrDefault(p => p.Username == wantName)
+                : data.Logins.FirstOrDefault();
+
+            if (login == null)
+            {
+                shell.WriteLine("Unable to find a matching login");
+                return;
+            }
+
+            var token = login.Token.Token;
+            var userId = login.UserId;
+
+            var cfg = IoCManager.Resolve<IAuthManager>();
+            cfg.Token = token;
+            cfg.UserId = new NetUserId(Guid.Parse(userId));
+        }
+
+        private sealed class LauncherConfig
+        {
+            [JsonInclude] [JsonPropertyName("logins")]
+            public LauncherLogin[] Logins = default!;
+        }
+
+        private sealed class LauncherLogin
+        {
+            [JsonInclude] public string Username = default!;
+            [JsonInclude] public string UserId = default!;
+            [JsonInclude] public LauncherToken Token = default!;
+        }
+
+        private sealed class LauncherToken
+        {
+            [JsonInclude] public string Token = default!;
+        }
+    }
+}
+
+#endif

Robust.Client/Console/Commands/ListAssembliesCommand.cs

@@ -1,8 +1,7 @@
 using System.Linq;
 using System.Runtime.Loader;
-using System.Text;
 using JetBrains.Annotations;
-using Robust.Client.Interfaces.Console;
+using Robust.Shared.Console;
 
 namespace Robust.Client.Console.Commands
 {
@@ -13,18 +12,16 @@ namespace Robust.Client.Console.Commands
         public string Description => "Lists loaded assemblies by load context.";
         public string Help => Command;
 
-        public bool Execute(IDebugConsole console, string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             foreach (var context in AssemblyLoadContext.All)
             {
-                console.AddLine($"{context.Name}:");
+                shell.WriteLine($"{context.Name}:");
                 foreach (var assembly in context.Assemblies.OrderBy(a => a.FullName))
                 {
-                    console.AddLine($"  {assembly.FullName}");
+                    shell.WriteLine($"  {assembly.FullName}");
                 }
             }
-
-            return false;
         }
     }
 }

Robust.Client/Console/Commands/LogCommands.cs

@@ -1,7 +1,6 @@
-using Robust.Client.Interfaces.Console;
-using Robust.Shared.Log;
-using Robust.Shared.Maths;
+using Robust.Shared.Log;
 using System;
+using Robust.Shared.Console;
 
 namespace Robust.Client.Console.Commands
 {
@@ -13,12 +12,12 @@ namespace Robust.Client.Console.Commands
                             + "\n    sawmill: A label prefixing log messages. This is the one you're setting the level for."
                             + "\n    level: The log level. Must match one of the values of the LogLevel enum.";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             if (args.Length != 2)
             {
-                console.AddLine("Invalid argument amount. Expected 2 arguments.", Color.Red);
-                return false;
+                shell.WriteError("Invalid argument amount. Expected 2 arguments.");
+                return;
             }
 
             var name = args[0];
@@ -32,13 +31,12 @@ namespace Robust.Client.Console.Commands
             {
                 if (!Enum.TryParse<LogLevel>(levelname, out var result))
                 {
-                    console.AddLine("Failed to parse 2nd argument. Must be one of the values of the LogLevel enum.");
-                    return false;
+                    shell.WriteLine("Failed to parse 2nd argument. Must be one of the values of the LogLevel enum.");
+                    return;
                 }
                 level = result;
             }
             Logger.GetSawmill(name).Level = level;
-            return false;
         }
     }
 
@@ -51,12 +49,12 @@ namespace Robust.Client.Console.Commands
                             + "\n    level: The log level. Must match one of the values of the LogLevel enum."
                             + "\n    message: The message to be logged. Wrap this in double quotes if you want to use spaces.";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             if (args.Length != 3)
             {
-                console.AddLine("Invalid argument amount. Expected 3 arguments.", Color.Red);
-                return false;
+                shell.WriteError("Invalid argument amount. Expected 3 arguments.");
+                return;
             }
 
             var name = args[0];
@@ -64,13 +62,12 @@ namespace Robust.Client.Console.Commands
             var message = args[2]; // yes this doesn't support spaces idgaf.
             if (!Enum.TryParse<LogLevel>(levelname, out var result))
             {
-                console.AddLine("Failed to parse 2nd argument. Must be one of the values of the LogLevel enum.");
-                return false;
+                shell.WriteLine("Failed to parse 2nd argument. Must be one of the values of the LogLevel enum.");
+                return;
             }
             var level = result;
 
             Logger.LogS(level, name, message);
-            return false;
         }
     }
 }

Robust.Client/Console/Commands/QuitCommand.cs

@@ -1,5 +1,5 @@
-using Robust.Client.Interfaces.Console;
 using System;
+using Robust.Shared.Console;
 
 namespace Robust.Client.Console.Commands
 {
@@ -9,10 +9,9 @@ namespace Robust.Client.Console.Commands
         public string Description => "Kills the game client instantly.";
         public string Help => "Kills the game client instantly, leaving no traces. No telling the server goodbye";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             Environment.Exit(0);
-            return false;
         }
     }
 }

Robust.Client/Console/Commands/Scripting.cs

@@ -1,22 +1,19 @@
-using Robust.Client.Interfaces.Console;
+using Robust.Shared.Console;
 using Robust.Shared.IoC;
 using Robust.Shared.Localization;
-using Robust.Shared.Maths;
 
 namespace Robust.Client.Console.Commands
 {
 #if CLIENT_SCRIPTING
-    internal sealed class ScriptConsoleCommand : IConsoleCommand
+    internal sealed class ScriptCommand : IConsoleCommand
     {
         public string Command => "csi";
         public string Description => "Opens a C# interactive console.";
         public string Help => "csi";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             new ScriptConsoleClient().OpenCentered();
-
-            return false;
         }
     }
 
@@ -26,33 +23,29 @@ namespace Robust.Client.Console.Commands
         public string Description => "Opens a variable watch window.";
         public string Help => "watch";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             new WatchWindow().OpenCentered();
-
-            return false;
         }
     }
 #endif
 
-    internal sealed class ServerScriptConsoleCommand : IConsoleCommand
+    internal sealed class ServerScriptCommand : IConsoleCommand
     {
         public string Command => "scsi";
         public string Description => "Opens a C# interactive console on the server.";
         public string Help => "scsi";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             var mgr = IoCManager.Resolve<IScriptClient>();
             if (!mgr.CanScript)
             {
-                console.AddLine(Loc.GetString("You do not have server side scripting permission."), Color.Red);
-                return false;
+                shell.WriteError(Loc.GetString("You do not have server side scripting permission."));
+                return;
             }
 
             mgr.StartSession();
-
-            return false;
         }
     }
 }

Robust.Client/Console/Commands/SendGarbageCommand.cs

@@ -1,5 +1,4 @@
-using Robust.Client.Interfaces.Console;
-using Robust.Shared.Interfaces.Network;
+using Robust.Shared.Console;
 using Robust.Shared.IoC;
 using Robust.Shared.Network;
 
@@ -11,7 +10,7 @@ namespace Robust.Client.Console.Commands
         public string Description => "Sends garbage to the server.";
         public string Help => "The server will reply with 'no u'";
 
-        public bool Execute(IDebugConsole console, params string[] args)
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
         {
             // MsgStringTableEntries is registered as NetMessageAccept.Client so the server will immediately deny it.
             // And kick us.
@@ -19,8 +18,6 @@ namespace Robust.Client.Console.Commands
             var msg = net.CreateNetMessage<MsgStringTableEntries>();
             msg.Entries = new MsgStringTableEntries.Entry[0];
             net.ClientSendMessage(msg);
-
-            return false;
         }
     }
 }

Robust.Client/Console/Commands/SetInputContextCommand.cs

@@ -0,0 +1,34 @@
+using JetBrains.Annotations;
+using Robust.Client.Input;
+using Robust.Shared.Console;
+using Robust.Shared.IoC;
+
+namespace Robust.Client.Console.Commands
+{
+    [UsedImplicitly]
+    public class SetInputContextCommand : IConsoleCommand
+    {
+        public string Command => "setinputcontext";
+        public string Description => "Sets the active input context.";
+        public string Help => "setinputcontext <context>";
+
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
+        {
+            if (args.Length != 1)
+            {
+                shell.WriteLine("Invalid number of arguments!");
+                return;
+            }
+
+            var inputMan = IoCManager.Resolve<IInputManager>();
+
+            if (!inputMan.Contexts.Exists(args[0]))
+            {
+                shell.WriteLine("Context not found!");
+                return;
+            }
+
+            inputMan.Contexts.SetActiveContext(args[0]);
+        }
+    }
+}

Robust.Client/Console/IClientConGroupController.cs

@@ -1,6 +1,4 @@
-using System;
-
-namespace Robust.Client.Console
+namespace Robust.Client.Console
 {
     public interface IClientConGroupController : IClientConGroupImplementation
     {

Robust.Client/Console/IClientConsole.cs

@@ -1,34 +0,0 @@
-using System;
-using System.Collections.Generic;
-using Robust.Client.Interfaces.Console;
-
-namespace Robust.Client.Console
-{
-    public interface IClientConsole : IDisposable
-    {
-        /// <summary>
-        ///     Initializes the console into a useable state.
-        /// </summary>
-        void Initialize();
-
-        /// <summary>
-        ///     Resets the console to a post-initialized state.
-        /// </summary>
-        void Reset();
-
-
-        event EventHandler<AddStringArgs> AddString;
-        event EventHandler<AddFormattedMessageArgs> AddFormatted;
-        event EventHandler ClearText;
-
-        IReadOnlyDictionary<string, IConsoleCommand> Commands { get; }
-
-        /// <summary>
-        ///     Parses console commands (verbs).
-        /// </summary>
-        /// <param name="text"></param>
-        void ProcessCommand(string text);
-
-        void SendServerCommandRequest();
-    }
-}

Robust.Client/Console/IClientConsoleHost.cs

@@ -0,0 +1,24 @@
+using System;
+using Robust.Shared.Console;
+using Robust.Shared.Utility;
+
+namespace Robust.Client.Console
+{
+    public interface IClientConsoleHost : IConsoleHost, IDisposable
+    {
+        /// <summary>
+        /// Initializes the console into a useable state.
+        /// </summary>
+        void Initialize();
+
+        /// <summary>
+        /// Resets the console to a post-initialized state.
+        /// </summary>
+        void Reset();
+
+        event EventHandler<AddStringArgs> AddString;
+        event EventHandler<AddFormattedMessageArgs> AddFormatted;
+
+        void AddFormattedLine(FormattedMessage message);
+    }
+}

Robust.Client/Console/ScriptClient.cs

@@ -1,7 +1,7 @@
 using System;
 using System.Collections.Generic;
-using Robust.Shared.Interfaces.Network;
 using Robust.Shared.IoC;
+using Robust.Shared.Network;
 using Robust.Shared.Network.Messages;
 
 namespace Robust.Client.Console

Robust.Client/Console/ScriptConsoleClient.cs

@@ -10,10 +10,10 @@ using Microsoft.CodeAnalysis.Scripting;
 using Microsoft.CodeAnalysis.Text;
 using Robust.Client.UserInterface.CustomControls;
 using Robust.Client.ViewVariables;
-using Robust.Shared.Interfaces.Reflection;
 using Robust.Shared.IoC;
 using Robust.Shared.Localization;
 using Robust.Shared.Maths;
+using Robust.Shared.Reflection;
 using Robust.Shared.Scripting;
 using Robust.Shared.Utility;
 

Robust.Client/Console/WatchWindow.cs

@@ -7,10 +7,10 @@ using Microsoft.CodeAnalysis.Scripting;
 using Robust.Client.UserInterface;
 using Robust.Client.UserInterface.Controls;
 using Robust.Client.UserInterface.CustomControls;
-using Robust.Shared.Interfaces.Reflection;
 using Robust.Shared.IoC;
 using Robust.Shared.Localization;
 using Robust.Shared.Maths;
+using Robust.Shared.Reflection;
 using Robust.Shared.Scripting;
 using Robust.Shared.Timing;
 

Robust.Client/Credits/CreditsManager.cs

@@ -1,6 +1,6 @@
 using System.Collections.Generic;
 using System.IO;
-using Robust.Shared.Interfaces.Resources;
+using Robust.Shared.ContentPack;
 using Robust.Shared.IoC;
 using Robust.Shared.Utility;
 using YamlDotNet.RepresentationModel;

Robust.Client/Debugging/DebugDrawing.cs

@@ -1,17 +1,9 @@
 using System;
 using System.Collections.Generic;
 using Robust.Client.Graphics;
-using Robust.Client.Graphics.Drawing;
-using Robust.Client.Graphics.Overlays;
-using Robust.Client.Graphics.Shaders;
-using Robust.Client.Interfaces.Debugging;
-using Robust.Client.Interfaces.Graphics.ClientEye;
-using Robust.Client.Interfaces.Graphics.Overlays;
-using Robust.Client.Interfaces.Input;
-using Robust.Client.Interfaces.ResourceManagement;
+using Robust.Client.Input;
 using Robust.Client.ResourceManagement;
-using Robust.Shared.GameObjects.Components;
-using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
 using Robust.Shared.Maths;
 using Robust.Shared.Physics;
@@ -26,6 +18,7 @@ namespace Robust.Client.Debugging
         [Dependency] private readonly IComponentManager _componentManager = default!;
         [Dependency] private readonly IEyeManager _eyeManager = default!;
         [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
+        [Dependency] private readonly IPhysicsManager _physicsManager = default!;
         [Dependency] private readonly IEntityManager _entityManager = default!;
         [Dependency] private readonly IInputManager _inputManager = default!;
 
@@ -48,7 +41,7 @@ namespace Robust.Client.Debugging
                 if (value)
                 {
                     _overlayManager.AddOverlay(new PhysicsOverlay(_componentManager, _eyeManager,
-                        _prototypeManager, _inputManager));
+                        _prototypeManager, _inputManager, _physicsManager));
                 }
                 else
                 {
@@ -86,6 +79,7 @@ namespace Robust.Client.Debugging
             private readonly IComponentManager _componentManager;
             private readonly IEyeManager _eyeManager;
             private readonly IInputManager _inputManager;
+            private readonly IPhysicsManager _physicsManager;
 
             public override OverlaySpace Space => OverlaySpace.WorldSpace | OverlaySpace.ScreenSpace;
             private readonly ShaderInstance _shader;
@@ -94,12 +88,13 @@ namespace Robust.Client.Debugging
             private Vector2 _hoverStartScreen = Vector2.Zero;
             private List<IPhysBody> _hoverBodies = new();
 
-            public PhysicsOverlay(IComponentManager compMan, IEyeManager eyeMan, IPrototypeManager protoMan, IInputManager inputManager)
+            public PhysicsOverlay(IComponentManager compMan, IEyeManager eyeMan, IPrototypeManager protoMan, IInputManager inputManager, IPhysicsManager physicsManager)
                 : base(nameof(PhysicsOverlay))
             {
                 _componentManager = compMan;
                 _eyeManager = eyeMan;
                 _inputManager = inputManager;
+                _physicsManager = physicsManager;
 
                 _shader = protoMan.Index<ShaderPrototype>("unshaded").Instance();
                 var cache = IoCManager.Resolve<IResourceCache>();
@@ -158,23 +153,20 @@ namespace Robust.Client.Debugging
                 _hoverStartScreen = mouseScreenPos;
 
                 var viewport = _eyeManager.GetWorldViewport();
-                foreach (var boundingBox in _componentManager.EntityQuery<IPhysicsComponent>())
-                {
-                    var physBody = (IPhysBody) boundingBox;
 
+                if (viewport.IsEmpty()) return;
+
+                var mapId = _eyeManager.CurrentMap;
+
+                foreach (var physBody in _physicsManager.GetCollidingEntities(mapId, viewport))
+                {
                     // all entities have a TransformComponent
                     var transform = physBody.Entity.Transform;
 
-                    // if not on the same map, continue
-                    if (transform.MapID != _eyeManager.CurrentMap || !transform.IsMapTransform)
-                        continue;
-
                     var worldBox = physBody.WorldAABB;
-                    var colorEdge = Color.Red.WithAlpha(0.33f);
+                    if (worldBox.IsEmpty()) continue;
 
-                    // if not on screen, or too small, continue
-                    if (!worldBox.Intersects(in viewport) || worldBox.IsEmpty())
-                        continue;
+                    var colorEdge = Color.Red.WithAlpha(0.33f);
 
                     foreach (var shape in physBody.PhysicsShapes)
                     {

Robust.Client/Debugging/DebugDrawingManager.cs

@@ -1,15 +1,11 @@
-using Robust.Client.Interfaces.Debugging;
-using Robust.Shared.Interfaces.Network;
-using Robust.Shared.IoC;
+using Robust.Shared.IoC;
 using Robust.Shared.Network.Messages;
 using System;
 using System.Collections.Generic;
-using Robust.Client.Graphics.Overlays;
-using Robust.Client.Graphics.Drawing;
+using Robust.Client.Graphics;
 using Robust.Shared.Maths;
-using Robust.Client.Interfaces.Graphics.Overlays;
 using Robust.Shared.Timing;
-using Robust.Shared.Interfaces.Timing;
+using Robust.Shared.Network;
 
 namespace Robust.Client.Debugging
 {

Robust.Client/Debugging/IDebugDrawing.cs

@@ -1,4 +1,4 @@
-namespace Robust.Client.Interfaces.Debugging
+namespace Robust.Client.Debugging
 {
     /// <summary>
     /// A collection of visual debug overlays for the client game.

Robust.Client/Debugging/IDebugDrawingManager.cs

@@ -1,11 +1,6 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using Robust.Shared.Timing;
 
-namespace Robust.Client.Interfaces.Debugging
+namespace Robust.Client.Debugging
 {
     public interface IDebugDrawingManager
     {

Robust.Client/GameController.cs

@@ -1,20 +1,17 @@
-using System;
+using System;
 using System.IO;
 using System.Net;
 using System.Threading.Tasks;
 using Robust.Client.Console;
-using Robust.Client.Interfaces;
-using Robust.Client.Interfaces.GameObjects;
-using Robust.Client.Interfaces.GameStates;
-using Robust.Client.Interfaces.Graphics;
-using Robust.Client.Interfaces.Graphics.Overlays;
-using Robust.Client.Interfaces.Input;
-using Robust.Client.Interfaces.Placement;
-using Robust.Client.Interfaces.ResourceManagement;
-using Robust.Client.Interfaces.State;
-using Robust.Client.Interfaces.UserInterface;
-using Robust.Client.Interfaces.Utility;
+using Robust.Client.GameObjects;
+using Robust.Client.GameStates;
+using Robust.Client.Graphics;
+using Robust.Client.Input;
+using Robust.Client.Placement;
 using Robust.Client.Player;
+using Robust.Client.ResourceManagement;
+using Robust.Client.State;
+using Robust.Client.UserInterface;
 using Robust.Client.Utility;
 using Robust.Client.ViewVariables;
 using Robust.LoaderApi;
@@ -22,17 +19,14 @@ using Robust.Shared;
 using Robust.Shared.Asynchronous;
 using Robust.Shared.Configuration;
 using Robust.Shared.ContentPack;
-using Robust.Shared.Interfaces.Configuration;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.Log;
-using Robust.Shared.Interfaces.Map;
-using Robust.Shared.Interfaces.Network;
-using Robust.Shared.Interfaces.Serialization;
-using Robust.Shared.Interfaces.Timers;
+using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
 using Robust.Shared.Log;
+using Robust.Shared.Map;
+using Robust.Shared.Network;
 using Robust.Shared.Prototypes;
 using Robust.Shared.Serialization;
+using Robust.Shared.Timers;
 using Robust.Shared.Timing;
 using Robust.Shared.Utility;
 
@@ -50,7 +44,7 @@ namespace Robust.Client
         [Dependency] private readonly IUserInterfaceManagerInternal _userInterfaceManager = default!;
         [Dependency] private readonly IBaseClient _client = default!;
         [Dependency] private readonly IInputManager _inputManager = default!;
-        [Dependency] private readonly IClientConsole _console = default!;
+        [Dependency] private readonly IClientConsoleHost _consoleHost = default!;
         [Dependency] private readonly ITimerManager _timerManager = default!;
         [Dependency] private readonly IClientEntityManager _entityManager = default!;
         [Dependency] private readonly IPlacementManager _placementManager = default!;
@@ -67,6 +61,7 @@ namespace Robust.Client
         [Dependency] private readonly IComponentManager _componentManager = default!;
         [Dependency] private readonly IPlayerManager _playerManager = default!;
         [Dependency] private readonly IRobustMappedStringSerializer _stringSerializer = default!;
+        [Dependency] private readonly IAuthManager _authManager = default!;
 
         private CommandLineArgs? _commandLineArgs;
         private bool _disableAssemblyLoadContext;
@@ -164,9 +159,10 @@ namespace Robust.Client
 
             _userInterfaceManager.Initialize();
             _networkManager.Initialize(false);
+            IoCManager.Resolve<INetConfigurationManager>().SetupNetworking();
             _serializer.Initialize();
             _inputManager.Initialize();
-            _console.Initialize();
+            _consoleHost.Initialize();
             _prototypeManager.LoadDirectory(new ResourcePath(@"/Prototypes/"));
             _prototypeManager.Resync();
             _mapManager.Initialize();
@@ -185,6 +181,8 @@ namespace Robust.Client
                 _client.PlayerNameOverride = _commandLineArgs.Username;
             }
 
+            _authManager.LoadFromEnv();
+
             _clyde.Ready();
 
             if ((_commandLineArgs?.Connect == true || _commandLineArgs?.Launcher == true)

Robust.Client/GameController/GameController.Input.cs

@@ -1,4 +1,4 @@
-using Robust.Client.Input;
+using Robust.Client.Input;
 
 namespace Robust.Client
 {

Robust.Client/GameController/GameController.IoC.cs

@@ -1,67 +1,9 @@
 using System;
 using System.Collections.Generic;
 using System.Reflection;
-using Robust.Client.Graphics.Clyde;
-using Robust.Client.Console;
-using Robust.Client.Debugging;
-using Robust.Client.GameObjects;
-using Robust.Client.GameStates;
-using Robust.Client.Graphics;
-using Robust.Client.Graphics.ClientEye;
-using Robust.Client.Graphics.Lighting;
-using Robust.Client.Graphics.Overlays;
-using Robust.Client.Input;
-using Robust.Client.Interfaces;
-using Robust.Client.Interfaces.Debugging;
-using Robust.Client.Interfaces.GameObjects;
-using Robust.Client.Interfaces.GameStates;
-using Robust.Client.Interfaces.Graphics;
-using Robust.Client.Interfaces.Graphics.ClientEye;
-using Robust.Client.Interfaces.Graphics.Lighting;
-using Robust.Client.Interfaces.Graphics.Overlays;
-using Robust.Client.Interfaces.Input;
-using Robust.Client.Interfaces.Map;
-using Robust.Client.Interfaces.Placement;
-using Robust.Client.Interfaces.ResourceManagement;
-using Robust.Client.Interfaces.State;
-using Robust.Client.Interfaces.UserInterface;
-using Robust.Client.Interfaces.Utility;
-using Robust.Client.Map;
-using Robust.Client.Placement;
-using Robust.Client.Player;
-using Robust.Client.Reflection;
-using Robust.Client.ResourceManagement;
-using Robust.Client.State;
-using Robust.Client.UserInterface;
-using Robust.Client.Utility;
-using Robust.Client.ViewVariables;
-using Robust.Shared;
-using Robust.Shared.Asynchronous;
-using Robust.Shared.Configuration;
 using Robust.Shared.ContentPack;
-using Robust.Shared.Exceptions;
-using Robust.Shared.GameObjects;
-using Robust.Shared.Interfaces.Configuration;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.Log;
-using Robust.Shared.Interfaces.Map;
-using Robust.Shared.Interfaces.Network;
-using Robust.Shared.Interfaces.Physics;
-using Robust.Shared.Interfaces.Reflection;
-using Robust.Shared.Interfaces.Resources;
-using Robust.Shared.Interfaces.Serialization;
-using Robust.Shared.Interfaces.Timers;
-using Robust.Shared.Interfaces.Timing;
 using Robust.Shared.IoC;
-using Robust.Shared.Localization;
-using Robust.Shared.Log;
-using Robust.Shared.Map;
-using Robust.Shared.Network;
-using Robust.Shared.Physics;
-using Robust.Shared.Prototypes;
-using Robust.Shared.Serialization;
-using Robust.Shared.Timers;
-using Robust.Shared.Timing;
+using Robust.Shared.Reflection;
 
 namespace Robust.Client
 {

Robust.Client/GameController/GameController.Loader.cs

@@ -1,4 +1,4 @@
-using Robust.Client;
+using Robust.Client;
 using Robust.LoaderApi;
 
 [assembly: LoaderEntryPoint(typeof(GameController.LoaderEntryPoint))]
@@ -11,7 +11,7 @@ namespace Robust.Client
         {
             public void Main(IMainArgs args)
             {
-                GameController.Start(args.Args, contentStart: false, args);
+                Start(args.Args, contentStart: false, args);
             }
         }
     }

Robust.Client/GameController/GameController.Standalone.cs

@@ -1,7 +1,5 @@
-using System;
-using Robust.Client.Interfaces;
+using System;
 using Robust.LoaderApi;
-using Robust.Shared.Interfaces.Timing;
 using Robust.Shared.IoC;
 using Robust.Shared.Log;
 using Robust.Shared.Timing;

Robust.Client/GameObjects/!NO_FOLDER_NAMESPACES

@@ -0,0 +1,3 @@
+Everything in this folder and subfolders needs to be in:
+
+Robust.Client.GameObjects

Robust.Client/GameObjects/ClientComponentFactory.cs

@@ -1,18 +1,4 @@
-using Robust.Client.GameObjects.Components;
-using Robust.Client.GameObjects.Components.Animations;
-using Robust.Client.GameObjects.Components.Containers;
-using Robust.Client.GameObjects.Components.UserInterface;
-using Robust.Client.Interfaces.GameObjects.Components;
-using Robust.Shared.GameObjects;
-using Robust.Shared.GameObjects.Components;
-using Robust.Shared.GameObjects.Components.Appearance;
-using Robust.Shared.GameObjects.Components.Eye;
-using Robust.Shared.GameObjects.Components.Map;
-using Robust.Shared.GameObjects.Components.Renderable;
-using Robust.Shared.GameObjects.Components.Timers;
-using Robust.Shared.GameObjects.Components.Transform;
-using Robust.Shared.GameObjects.Components.UserInterface;
-using Robust.Shared.Interfaces.GameObjects.Components;
+using Robust.Shared.GameObjects;
 using Robust.Shared.Physics;
 
 namespace Robust.Client.GameObjects
@@ -55,15 +41,13 @@ namespace Robust.Client.GameObjects
 
             Register<AppearanceComponent>();
             RegisterReference<AppearanceComponent, SharedAppearanceComponent>();
-            
+
             Register<AppearanceTestComponent>();
             Register<SnapGridComponent>();
 
             Register<ClientUserInterfaceComponent>();
             RegisterReference<ClientUserInterfaceComponent, SharedUserInterfaceComponent>();
 
-            RegisterIgnore("IgnorePause");
-
             Register<AnimationPlayerComponent>();
 
             Register<ContainerManagerComponent>();

Robust.Client/GameObjects/ClientEntityManager.cs

@@ -1,11 +1,8 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Linq;
-using Robust.Client.Interfaces.GameObjects;
 using Robust.Shared.Exceptions;
 using Robust.Shared.GameObjects;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.Map;
 using Robust.Shared.IoC;
 using Robust.Shared.Log;
 using Robust.Shared.Map;

Robust.Client/GameObjects/ClientEntityNetworkManager.cs

@@ -1,13 +1,11 @@
 using System;
 using System.Collections.Generic;
-using Robust.Client.Interfaces.GameStates;
+using Robust.Client.GameStates;
 using Robust.Shared.GameObjects;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.Network;
-using Robust.Shared.Interfaces.Timing;
 using Robust.Shared.IoC;
-using Robust.Shared.Log;
+using Robust.Shared.Network;
 using Robust.Shared.Network.Messages;
+using Robust.Shared.Timing;
 using Robust.Shared.Utility;
 
 namespace Robust.Client.GameObjects

Robust.Client/GameObjects/Components/Animations/AnimationPlayerComponent.cs

@@ -5,7 +5,7 @@ using Robust.Client.Animations;
 using Robust.Shared.GameObjects;
 using static Robust.Client.Animations.AnimationPlaybackShared;
 
-namespace Robust.Client.GameObjects.Components.Animations
+namespace Robust.Client.GameObjects
 {
     /// <summary>
     ///     Plays back <see cref="Animation"/>s on entities.
@@ -48,11 +48,21 @@ namespace Robust.Client.GameObjects.Components.Animations
                 return;
             }
 
+            List<string>? toRemove = null;
             // TODO: Get rid of this ToArray() allocation.
             foreach (var (key, playback) in _playingAnimations.ToArray())
             {
                 var keep = UpdatePlayback(Owner, playback, frameTime);
                 if (!keep)
+                {
+                    toRemove ??= new List<string>();
+                    toRemove.Add(key);
+                }
+            }
+
+            if (toRemove != null)
+            {
+                foreach (var key in toRemove)
                 {
                     _playingAnimations.Remove(key);
                     AnimationCompleted?.Invoke(key);

Robust.Client/GameObjects/Components/Appearance/AppearanceComponent.cs

@@ -1,13 +1,9 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
-using Robust.Client.GameObjects.EntitySystems;
 using Robust.Shared.GameObjects;
-using Robust.Shared.GameObjects.Components.Appearance;
-using Robust.Shared.GameObjects.Systems;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.Reflection;
 using Robust.Shared.IoC;
+using Robust.Shared.Reflection;
 using Robust.Shared.Serialization;
 using Robust.Shared.Utility;
 using Robust.Shared.ViewVariables;
@@ -54,17 +50,17 @@ namespace Robust.Client.GameObjects
             return (T) data[key];
         }
 
-        public override bool TryGetData<T>(Enum key, [MaybeNullWhen(false)] out T data)
+        public override bool TryGetData<T>(Enum key, [NotNullWhen(true)] out T data)
         {
             return TryGetData(key, out data);
         }
 
-        public override bool TryGetData<T>(string key, [MaybeNullWhen(false)] out T data)
+        public override bool TryGetData<T>(string key, [NotNullWhen(true)] out T data)
         {
             return TryGetData(key, out data);
         }
 
-        internal bool TryGetData<T>(object key, [MaybeNullWhen(false)] out T data)
+        internal bool TryGetData<T>(object key, [NotNullWhen(true)] out T data)
         {
             if (this.data.TryGetValue(key, out var dat))
             {
@@ -72,12 +68,14 @@ namespace Robust.Client.GameObjects
                 return true;
             }
 
-            data = default;
+            data = default!;
             return false;
         }
 
         private void SetData(object key, object value)
         {
+            if (data.TryGetValue(key, out var existing) && existing.Equals(value)) return;
+
             data[key] = value;
 
             MarkDirty();
@@ -85,10 +83,9 @@ namespace Robust.Client.GameObjects
 
         public override void HandleComponentState(ComponentState? curState, ComponentState? nextState)
         {
-            if (curState == null)
+            if (curState is not AppearanceComponentState actualState)
                 return;
 
-            var actualState = (AppearanceComponentState) curState;
             data = actualState.Data;
             MarkDirty();
         }

Robust.Client/GameObjects/Components/Containers/ContainerManagerComponent.ClientContainer.cs

@@ -1,13 +1,10 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
-using Robust.Client.GameObjects.EntitySystems;
 using Robust.Shared.GameObjects;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.GameObjects.Components;
 using Robust.Shared.ViewVariables;
 
-namespace Robust.Client.GameObjects.Components.Containers
+namespace Robust.Client.GameObjects
 {
     public sealed partial class ContainerManagerComponent
     {

Robust.Client/GameObjects/Components/Containers/ContainerManagerComponent.cs

@@ -2,14 +2,10 @@
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
 using System.Linq;
-using Robust.Client.GameObjects.EntitySystems;
 using Robust.Shared.GameObjects;
-using Robust.Shared.GameObjects.Components.Containers;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.GameObjects.Components;
 using Robust.Shared.ViewVariables;
 
-namespace Robust.Client.GameObjects.Components.Containers
+namespace Robust.Client.GameObjects
 {
     public sealed partial class ContainerManagerComponent : SharedContainerManagerComponent
     {

Robust.Client/GameObjects/Components/Eye/EyeComponent.cs

@@ -1,8 +1,5 @@
-using Robust.Client.Graphics.ClientEye;
-using Robust.Client.Interfaces.Graphics.ClientEye;
+using Robust.Client.Graphics;
 using Robust.Shared.GameObjects;
-using Robust.Shared.GameObjects.Components.Eye;
-using Robust.Shared.Interfaces.GameObjects.Components;
 using Robust.Shared.IoC;
 using Robust.Shared.Map;
 using Robust.Shared.Maths;

Robust.Client/GameObjects/Components/Icon/IconComponent.cs

@@ -1,9 +1,9 @@
 using Robust.Client.Graphics;
-using Robust.Client.Interfaces.ResourceManagement;
 using Robust.Client.ResourceManagement;
 using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
 using Robust.Shared.Log;
+using Robust.Shared.Prototypes;
 using Robust.Shared.Serialization;
 using Robust.Shared.Utility;
 
@@ -31,11 +31,11 @@ namespace Robust.Client.GameObjects
             }
         }
 
-        private static IDirectionalTextureProvider TextureForConfig(ObjectSerializer serializer, IResourceCache resourceCache)
+        private static IRsiStateLike TextureForConfig(ObjectSerializer serializer, IResourceCache resourceCache)
         {
             DebugTools.Assert(serializer.Reading);
 
-            if (serializer.TryGetCacheData<IDirectionalTextureProvider>(SerializationCache, out var dirTex))
+            if (serializer.TryGetCacheData<IRsiStateLike>(SerializationCache, out var dirTex))
             {
                 return dirTex;
             }
@@ -93,7 +93,7 @@ namespace Robust.Client.GameObjects
             }
         }
 
-        public static IDirectionalTextureProvider? GetPrototypeIcon(EntityPrototype prototype, IResourceCache resourceCache)
+        public static IRsiStateLike? GetPrototypeIcon(EntityPrototype prototype, IResourceCache resourceCache)
         {
             if (!prototype.Components.TryGetValue("Icon", out var mapping))
             {

Robust.Client/GameObjects/Components/IgnorePauseComponent.cs

@@ -0,0 +1,11 @@
+using Robust.Shared.GameObjects;
+
+namespace Robust.Client.GameObjects
+{
+    [RegisterComponent]
+    [ComponentReference(typeof(SharedIgnorePauseComponent))]
+    public sealed class IgnorePauseComponent : SharedIgnorePauseComponent
+    {
+
+    }
+}

Robust.Client/GameObjects/Components/Input/InputComponent.cs

@@ -1,10 +1,9 @@
-using Robust.Client.GameObjects.EntitySystems;
-using Robust.Shared.GameObjects;
+using Robust.Shared.GameObjects;
 using Robust.Shared.Input;
 using Robust.Shared.Serialization;
 using Robust.Shared.ViewVariables;
 
-namespace Robust.Client.GameObjects.Components
+namespace Robust.Client.GameObjects
 {
     /// <summary>
     ///     Defines data fields used in the <see cref="InputSystem"/>.

Robust.Client/GameObjects/Components/Light/ClientOccluderComponent.cs

@@ -1,7 +1,5 @@
 using System;
-using Robust.Client.GameObjects.EntitySystems;
 using Robust.Shared.GameObjects;
-using Robust.Shared.GameObjects.Components.Transform;
 using Robust.Shared.Map;
 using Robust.Shared.Maths;
 using Robust.Shared.ViewVariables;

Robust.Client/GameObjects/Components/Light/PointLightComponent.cs

@@ -1,16 +1,13 @@
-using Robust.Client.GameObjects.EntitySystems;
+using System;
 using Robust.Client.Graphics;
-using Robust.Client.Interfaces.ResourceManagement;
 using Robust.Client.ResourceManagement;
 using Robust.Shared.Animations;
 using Robust.Shared.GameObjects;
-using Robust.Shared.Interfaces.GameObjects;
 using Robust.Shared.IoC;
 using Robust.Shared.Map;
 using Robust.Shared.Maths;
 using Robust.Shared.Serialization;
 using Robust.Shared.ViewVariables;
-using System;
 
 namespace Robust.Client.GameObjects
 {

Robust.Client/GameObjects/Components/Renderable/IRenderableComponent.cs

@@ -1,9 +1,8 @@
 using Robust.Shared.GameObjects;
-using Robust.Shared.Interfaces.GameObjects;
 using Robust.Shared.Map;
 using Robust.Shared.Maths;
 
-namespace Robust.Client.Interfaces.GameObjects
+namespace Robust.Client.GameObjects
 {
     public interface IRenderableComponent : IComponent
     {

Robust.Client/GameObjects/Components/Renderable/ISpriteComponent.cs

@@ -1,14 +1,12 @@
 using System;
 using System.Collections.Generic;
-using Robust.Client.GameObjects;
 using Robust.Client.Graphics;
-using Robust.Client.Graphics.Shaders;
 using Robust.Shared.Animations;
-using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.GameObjects;
 using Robust.Shared.Maths;
 using Robust.Shared.Utility;
 
-namespace Robust.Client.Interfaces.GameObjects.Components
+namespace Robust.Client.GameObjects
 {
     public interface ISpriteComponent : IComponent, IAnimationProperties
     {
@@ -205,29 +203,4 @@ namespace Robust.Client.Interfaces.GameObjects.Components
 
         IEnumerable<ISpriteLayer> AllLayers { get; }
     }
-
-    public interface ISpriteLayer
-    {
-        SpriteComponent.DirectionOffset DirOffset { get; set; }
-
-        RSI? Rsi { get; set; }
-        RSI.StateId RsiState { get; set; }
-        RSI? ActualRsi { get; }
-
-        Texture? Texture { get; set; }
-
-        Angle Rotation { get; set; }
-        Vector2 Scale { get; set; }
-
-        bool Visible { get; set; }
-        Color Color { get; set; }
-
-        float AnimationTime { get; set; }
-        int AnimationFrame { get; }
-        bool AutoAnimated { get; set; }
-
-        RSI.State.Direction EffectiveDirection(Angle worldRotation);
-
-        Vector2 LocalToLayer(Vector2 localPos);
-    }
-}
+}

Robust.Client/GameObjects/Components/Renderable/ISpriteLayer.cs

@@ -0,0 +1,30 @@
+using Robust.Client.Graphics;
+using Robust.Shared.Maths;
+
+namespace Robust.Client.GameObjects
+{
+    public interface ISpriteLayer
+    {
+        SpriteComponent.DirectionOffset DirOffset { get; set; }
+
+        RSI? Rsi { get; set; }
+        RSI.StateId RsiState { get; set; }
+        RSI? ActualRsi { get; }
+
+        Texture? Texture { get; set; }
+
+        Angle Rotation { get; set; }
+        Vector2 Scale { get; set; }
+
+        bool Visible { get; set; }
+        Color Color { get; set; }
+
+        float AnimationTime { get; set; }
+        int AnimationFrame { get; }
+        bool AutoAnimated { get; set; }
+
+        RSI.State.Direction EffectiveDirection(Angle worldRotation);
+
+        Vector2 LocalToLayer(Vector2 localPos);
+    }
+}

Robust.Client/GameObjects/Components/Renderable/SpriteComponent.cs

@@ -1,33 +1,24 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
 using System.Globalization;
+using System.Linq;
 using System.Text;
-using Robust.Client.GameObjects.EntitySystems;
 using Robust.Client.Graphics;
-using Robust.Client.Graphics.ClientEye;
-using Robust.Client.Graphics.Drawing;
-using Robust.Client.Graphics.Shaders;
-using Robust.Client.Interfaces.GameObjects.Components;
-using Robust.Client.Interfaces.ResourceManagement;
 using Robust.Client.ResourceManagement;
 using Robust.Client.Utility;
 using Robust.Shared.Animations;
 using Robust.Shared.GameObjects;
-using Robust.Shared.GameObjects.Components.Renderable;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.Reflection;
 using Robust.Shared.IoC;
 using Robust.Shared.Log;
 using Robust.Shared.Map;
 using Robust.Shared.Maths;
+using Robust.Shared.Network;
 using Robust.Shared.Prototypes;
+using Robust.Shared.Reflection;
 using Robust.Shared.Serialization;
-using Robust.Shared.Utility;
-using System.Linq;
-using Robust.Shared.Interfaces.GameObjects.Components;
-using Robust.Shared.Interfaces.Network;
 using Robust.Shared.Timing;
+using Robust.Shared.Utility;
 using Robust.Shared.ViewVariables;
 using DrawDepthTag = Robust.Shared.GameObjects.DrawDepth;
 
@@ -197,34 +188,34 @@ namespace Robust.Client.GameObjects
         public void CopyFrom(SpriteComponent other)
         {
             //deep copying things to avoid entanglement
-            this._baseRsi = other._baseRsi;
-            this._directional = other._directional;
-            this._visible = other._visible;
-            this._layerMapShared = other._layerMapShared;
-            this.color = other.color;
-            this.offset = other.offset;
-            this.rotation = other.rotation;
-            this.scale = other.scale;
-            this.drawDepth = other.drawDepth;
-            this.Layers = new List<Layer>(other.Layers.Count);
+            _baseRsi = other._baseRsi;
+            _directional = other._directional;
+            _visible = other._visible;
+            _layerMapShared = other._layerMapShared;
+            color = other.color;
+            offset = other.offset;
+            rotation = other.rotation;
+            scale = other.scale;
+            drawDepth = other.drawDepth;
+            Layers = new List<Layer>(other.Layers.Count);
             foreach (var otherLayer in other.Layers)
             {
-                this.Layers.Add(new Layer(otherLayer, this));
+                Layers.Add(new Layer(otherLayer, this));
             }
-            this.IsInert = other.IsInert;
-            this.LayerMap = other.LayerMap.ToDictionary(entry => entry.Key,
+            IsInert = other.IsInert;
+            LayerMap = other.LayerMap.ToDictionary(entry => entry.Key,
                 entry => entry.Value);
             if (other.PostShader != null)
             {
                 // only need to copy the shader if it's mutable
-                this.PostShader = other.PostShader.Mutable ? other.PostShader.Duplicate() : other.PostShader;
+                PostShader = other.PostShader.Mutable ? other.PostShader.Duplicate() : other.PostShader;
             }
             else
             {
-                this.PostShader = null;
+                PostShader = null;
             }
 
-            this.RenderOrder = other.RenderOrder;
+            RenderOrder = other.RenderOrder;
         }
 
         /// <inheritdoc />
@@ -991,6 +982,9 @@ namespace Robust.Client.GameObjects
             var mRotation = Matrix3.CreateRotation(angle);
             Matrix3.Multiply(ref mRotation, ref mOffset, out var transform);
 
+            // Only apply scale if needed.
+            if(!Scale.EqualsApprox(Vector2.One)) transform.Multiply(Matrix3.CreateScale(Scale));
+
             transform.Multiply(worldTransform);
 
             RenderInternal(drawingHandle, worldRotation, overrideDirection, transform);
@@ -1043,7 +1037,7 @@ namespace Robust.Client.GameObjects
                 var rsi = layer.RSI ?? BaseRSI;
                 if (rsi == null || !rsi.TryGetState(layer.State, out var state))
                 {
-                    state = GetFallbackState();
+                    state = GetFallbackState(resourceCache);
                 }
 
                 var layerSpecificDir = layer.EffectiveDirection(state, worldRotation, overrideDirection);
@@ -1276,7 +1270,7 @@ namespace Robust.Client.GameObjects
                 var rsi = layer.RSI ?? BaseRSI;
                 if (rsi == null || !rsi.TryGetState(layer.State, out var state))
                 {
-                    state = GetFallbackState();
+                    state = GetFallbackState(resourceCache);
                 }
 
                 if (!state.IsAnimated)
@@ -1404,7 +1398,7 @@ namespace Robust.Client.GameObjects
                 var rsi = layer.RSI ?? BaseRSI;
                 if (rsi == null || !rsi.TryGetState(layer.State, out var state))
                 {
-                    state = GetFallbackState();
+                    state = GetFallbackState(resourceCache);
                 }
 
                 if (state.IsAnimated)
@@ -1415,9 +1409,9 @@ namespace Robust.Client.GameObjects
             }
         }
 
-        private RSI.State GetFallbackState()
+        internal static RSI.State GetFallbackState(IResourceCache cache)
         {
-            var rsi = resourceCache.GetResource<RSIResource>("/Textures/error.rsi").RSI;
+            var rsi = cache.GetResource<RSIResource>("/Textures/error.rsi").RSI;
             return rsi["error"];
         }
 
@@ -1735,14 +1729,14 @@ namespace Robust.Client.GameObjects
                 var rsi = ActualRsi;
                 if (rsi == null)
                 {
-                    state = _parent.GetFallbackState();
+                    state = GetFallbackState(_parent.resourceCache);
                     Logger.ErrorS(LogCategory, "No RSI to pull new state from! Trace:\n{0}", Environment.StackTrace);
                 }
                 else
                 {
                     if (!rsi.TryGetState(stateId, out state))
                     {
-                        state = _parent.GetFallbackState();
+                        state = GetFallbackState(_parent.resourceCache);
                         Logger.ErrorS(LogCategory, "State '{0}' does not exist in RSI. Trace:\n{1}", stateId,
                             Environment.StackTrace);
                     }
@@ -1793,7 +1787,7 @@ namespace Robust.Client.GameObjects
             }
         }
 
-        public IDirectionalTextureProvider? Icon
+        public IRsiStateLike? Icon
         {
             get
             {
@@ -1803,13 +1797,13 @@ namespace Robust.Client.GameObjects
 
                 var texture = layer.Texture;
 
-                if (!layer.State.IsValid) return null;
+                if (!layer.State.IsValid) return texture;
 
                 // Pull texture from RSI state instead.
                 var rsi = layer.RSI ?? BaseRSI;
                 if (rsi == null || !rsi.TryGetState(layer.State, out var state))
                 {
-                    state = GetFallbackState();
+                    state = GetFallbackState(resourceCache);
                 }
 
                 return state;
@@ -1867,21 +1861,21 @@ namespace Robust.Client.GameObjects
 
         }
 
-        public static IDirectionalTextureProvider? GetPrototypeIcon(EntityPrototype prototype, IResourceCache resourceCache)
+        public static IRsiStateLike GetPrototypeIcon(EntityPrototype prototype, IResourceCache resourceCache)
         {
             var icon = IconComponent.GetPrototypeIcon(prototype, resourceCache);
             if (icon != null) return icon;
 
-            if (!prototype.Components.TryGetValue("Sprite", out var spriteNode))
+            if (!prototype.Components.ContainsKey("Sprite"))
             {
-                return resourceCache.GetFallback<TextureResource>().Texture;
+                return GetFallbackState(resourceCache);
             }
 
-            var dummy = new DummyIconEntity() {Prototype = prototype};
+            var dummy = new DummyIconEntity {Prototype = prototype};
             var spriteComponent = dummy.AddComponent<SpriteComponent>();
             dummy.Delete();
 
-            return spriteComponent?.Icon ?? resourceCache.GetFallback<TextureResource>().Texture;
+            return spriteComponent.Icon ?? GetFallbackState(resourceCache);
         }
 
         #region DummyIconEntity

Robust.Client/GameObjects/Components/UserInterface/ClientUserInterfaceComponent.cs

@@ -1,15 +1,13 @@
 using System;
 using System.Collections.Generic;
 using Robust.Shared.GameObjects;
-using Robust.Shared.GameObjects.Components.UserInterface;
-using Robust.Shared.Interfaces.Network;
-using Robust.Shared.Interfaces.Reflection;
 using Robust.Shared.IoC;
+using Robust.Shared.Network;
 using Robust.Shared.Players;
+using Robust.Shared.Reflection;
 using Robust.Shared.Serialization;
-using IComponent = Robust.Shared.Interfaces.GameObjects.IComponent;
 
-namespace Robust.Client.GameObjects.Components.UserInterface
+namespace Robust.Client.GameObjects
 {
     public class ClientUserInterfaceComponent : SharedUserInterfaceComponent
     {

Robust.Client/GameObjects/EntityManagerExt.cs

@@ -1,7 +1,6 @@
-using Robust.Client.Interfaces.GameStates;
+using Robust.Client.GameStates;
 using Robust.Client.Player;
 using Robust.Shared.GameObjects;
-using Robust.Shared.Interfaces.GameObjects;
 using Robust.Shared.IoC;
 using Robust.Shared.Utility;
 

Robust.Client/GameObjects/EntitySystems/AnimationPlayerSystem.cs

@@ -1,13 +1,12 @@
-using Robust.Client.GameObjects.Components.Animations;
-using Robust.Shared.GameObjects.Systems;
+using Robust.Shared.GameObjects;
 
-namespace Robust.Client.GameObjects.EntitySystems
+namespace Robust.Client.GameObjects
 {
     internal sealed class AnimationPlayerSystem : EntitySystem
     {
         public override void FrameUpdate(float frameTime)
         {
-            foreach (var animationPlayerComponent in EntityManager.ComponentManager.EntityQuery<AnimationPlayerComponent>())
+            foreach (var animationPlayerComponent in EntityManager.ComponentManager.EntityQuery<AnimationPlayerComponent>(true))
             {
                 animationPlayerComponent.Update(frameTime);
             }

Robust.Client/GameObjects/EntitySystems/AppearanceSystem.cs

@@ -1,7 +1,7 @@
 using System.Collections.Generic;
-using Robust.Shared.GameObjects.Systems;
+using Robust.Shared.GameObjects;
 
-namespace Robust.Client.GameObjects.EntitySystems
+namespace Robust.Client.GameObjects
 {
     internal sealed class AppearanceSystem : EntitySystem
     {

Robust.Client/GameObjects/EntitySystems/AppearanceTestSystem.cs

@@ -1,12 +1,12 @@
-using Robust.Shared.GameObjects.Systems;
+using Robust.Shared.GameObjects;
 
-namespace Robust.Client.GameObjects.EntitySystems
+namespace Robust.Client.GameObjects
 {
     class AppearanceTestSystem : EntitySystem
     {
         public override void Update(float frameTime)
         {
-            foreach (var appearanceTestComponent in EntityManager.ComponentManager.EntityQuery<AppearanceTestComponent>())
+            foreach (var appearanceTestComponent in EntityManager.ComponentManager.EntityQuery<AppearanceTestComponent>(true))
             {
                 appearanceTestComponent.OnUpdate(frameTime);
             }

Robust.Client/GameObjects/EntitySystems/AudioSystem.cs

@@ -2,23 +2,18 @@
 using System.Collections.Generic;
 using JetBrains.Annotations;
 using Robust.Client.Audio;
-using Robust.Client.Interfaces.Graphics;
-using Robust.Client.Interfaces.Graphics.ClientEye;
-using Robust.Client.Interfaces.ResourceManagement;
+using Robust.Client.Graphics;
 using Robust.Client.ResourceManagement;
 using Robust.Shared.Audio;
 using Robust.Shared.GameObjects;
-using Robust.Shared.GameObjects.Systems;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.Map;
-using Robust.Shared.Interfaces.Physics;
 using Robust.Shared.IoC;
 using Robust.Shared.Log;
 using Robust.Shared.Map;
 using Robust.Shared.Maths;
+using Robust.Shared.Physics;
 using Robust.Shared.Utility;
 
-namespace Robust.Client.GameObjects.EntitySystems
+namespace Robust.Client.GameObjects
 {
     [UsedImplicitly]
     public class AudioSystem : EntitySystem
@@ -56,12 +51,12 @@ namespace Robust.Client.GameObjects.EntitySystems
 
         private void PlayAudioPositionalHandler(PlayAudioPositionalMessage ev)
         {
-            var gridId = ev.Coordinates.GetGridId(_entityManager);
-            
-            if (!_mapManager.GridExists(gridId))
+            var mapId = ev.Coordinates.GetMapId(_entityManager);
+
+            if (!_mapManager.MapExists(mapId))
             {
                 Logger.Error(
-                    $"Server tried to play sound on grid {gridId}, which does not exist. Ignoring.");
+                    $"Server tried to play sound on map {mapId}, which does not exist. Ignoring.");
                 return;
             }
 
@@ -111,13 +106,13 @@ namespace Robust.Client.GameObjects.EntitySystems
                     if (stream.TrackingCoordinates != null)
                     {
                         var coords = stream.TrackingCoordinates.Value;
-                        if (_mapManager.GridExists(coords.GetGridId(_entityManager)))
+                        if (_mapManager.MapExists(coords.GetMapId(_entityManager)))
                         {
                             mapPos = stream.TrackingCoordinates.Value.ToMap(_entityManager);
                         }
                         else
                         {
-                            // Grid no longer exists, delete stream.
+                            // Map no longer exists, delete stream.
                             StreamDone(stream);
                             continue;
                         }
@@ -356,4 +351,76 @@ namespace Robust.Client.GameObjects.EntitySystems
 
         event Action PlaybackDone;
     }
+
+    public static class AudioSystemExtensions
+    {
+
+        /// <summary>
+        ///     Play an audio file following an entity.
+        /// </summary>
+        /// <param name="filename">The resource path to the OGG Vorbis file to play.</param>
+        /// <param name="entity">The entity "emitting" the audio.</param>
+        /// <param name="audioParams"></param>
+        /// <param name="audioSystem">A pre-fetched instance of <see cref="AudioSystem"/> to use, can be null.</param>
+        public static IPlayingAudioStream? Play(
+            this IEntity entity,
+            string filename,
+            AudioParams? audioParams,
+            AudioSystem? audioSystem = null)
+        {
+            audioSystem ??= EntitySystem.Get<AudioSystem>();
+            return audioSystem.Play(filename, entity, audioParams);
+        }
+
+        /// <summary>
+        ///     Play an audio stream following an entity.
+        /// </summary>
+        /// <param name="stream">The audio stream to play.</param>
+        /// <param name="entity">The entity "emitting" the audio.</param>
+        /// <param name="audioParams"></param>
+        /// <param name="audioSystem">A pre-fetched instance of <see cref="AudioSystem"/> to use, can be null.</param>
+        public static IPlayingAudioStream? Play(
+            this IEntity entity,
+            AudioStream stream,
+            AudioParams? audioParams = null,
+            AudioSystem? audioSystem = null)
+        {
+            audioSystem ??= EntitySystem.Get<AudioSystem>();
+            return audioSystem.Play(stream, entity, audioParams);
+        }
+
+        /// <summary>
+        ///     Play an audio file at a static position.
+        /// </summary>
+        /// <param name="filename">The resource path to the OGG Vorbis file to play.</param>
+        /// <param name="coordinates">The coordinates at which to play the audio.</param>
+        /// <param name="audioParams"></param>
+        /// <param name="audioSystem">A pre-fetched instance of <see cref="AudioSystem"/> to use, can be null.</param>
+        public static IPlayingAudioStream? Play(
+            this EntityCoordinates coordinates,
+            string filename,
+            AudioParams? audioParams = null,
+            AudioSystem? audioSystem = null)
+        {
+            audioSystem ??= EntitySystem.Get<AudioSystem>();
+            return audioSystem.Play(filename, coordinates, audioParams);
+        }
+
+        /// <summary>
+        ///     Play an audio stream at a static position.
+        /// </summary>
+        /// <param name="stream">The audio stream to play.</param>
+        /// <param name="coordinates">The coordinates at which to play the audio.</param>
+        /// <param name="audioParams"></param>
+        /// <param name="audioSystem">A pre-fetched instance of <see cref="AudioSystem"/> to use, can be null.</param>
+        public static IPlayingAudioStream? Play(
+            this EntityCoordinates coordinates,
+            AudioStream stream,
+            AudioParams? audioParams = null,
+            AudioSystem? audioSystem = null)
+        {
+            audioSystem ??= EntitySystem.Get<AudioSystem>();
+            return audioSystem.Play(stream, coordinates, audioParams);
+        }
+    }
 }

Robust.Client/GameObjects/EntitySystems/ClientOccluderSystem.cs

@@ -3,15 +3,11 @@ using System.Linq;
 using JetBrains.Annotations;
 using Robust.Client.Physics;
 using Robust.Shared.GameObjects;
-using Robust.Shared.GameObjects.Components.Transform;
-using Robust.Shared.GameObjects.Systems;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.Map;
 using Robust.Shared.IoC;
 using Robust.Shared.Map;
 using Robust.Shared.Maths;
 
-namespace Robust.Client.GameObjects.EntitySystems
+namespace Robust.Client.GameObjects
 {
     // NOTE: this class handles both snap grid updates of occluders, as well as occluder tree updates (via its parent).
     // This seems like it's doing somewhat double work because it already has an update queue for occluders but...

Robust.Client/GameObjects/EntitySystems/ContainerSystem.cs

@@ -1,9 +1,8 @@
 using System.Collections.Generic;
 using Robust.Shared.Containers;
-using Robust.Shared.GameObjects.Systems;
-using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.GameObjects;
 
-namespace Robust.Client.GameObjects.EntitySystems
+namespace Robust.Client.GameObjects
 {
     public class ContainerSystem : EntitySystem
     {

Robust.Client/GameObjects/EntitySystems/EffectSystem.cs

@@ -1,25 +1,15 @@
-using Robust.Client.Graphics;
-using Robust.Client.Graphics.Drawing;
-using Robust.Client.Interfaces.Graphics.ClientEye;
-using Robust.Client.Interfaces.ResourceManagement;
+using Robust.Client.Graphics;
 using Robust.Client.ResourceManagement;
-using Robust.Shared.GameObjects.EntitySystemMessages;
-using Robust.Shared.GameObjects.Systems;
-using Robust.Shared.Interfaces.Timing;
 using Robust.Shared.IoC;
 using Robust.Shared.Map;
 using Robust.Shared.Maths;
 using System;
 using System.Collections.Generic;
-using Robust.Client.Graphics.Overlays;
-using Robust.Client.Graphics.Shaders;
-using Robust.Client.Interfaces.Graphics.Overlays;
 using Robust.Client.Player;
 using Robust.Shared.GameObjects;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.Map;
 using Robust.Shared.Log;
 using Robust.Shared.Prototypes;
+using Robust.Shared.Timing;
 using Robust.Shared.Utility;
 
 namespace Robust.Client.GameObjects
@@ -57,47 +47,54 @@ namespace Robust.Client.GameObjects
 
         public void CreateEffect(EffectSystemMessage message)
         {
+            // The source of effects is either local actions during FirstTimePredicted, or the network at LastServerTick
+            // When replaying predicted input, don't spam effects.
+            if(gameTiming.InPrediction && !gameTiming.IsFirstTimePredicted)
+                return;
+
             if (message.AttachedEntityUid != null && message.Coordinates != default)
             {
                 Logger.Warning("Set both an AttachedEntityUid and EntityCoordinates on an EffectSystemMessage for sprite {0} which is not supported!", message.EffectSprite);
             }
 
-            var gameTime = gameTiming.CurTime;
-            if (gameTime > message.DeathTime) //Did we already die in transit? That's pretty troubling isn't it
+            if (message.LifeTime <= TimeSpan.Zero)
             {
-                Logger.Warning("Effect using sprite {0} died in transit to the client", message.EffectSprite);
+                Logger.Warning("Effect using sprite {0} had zero lifetime.", message.EffectSprite);
                 return;
             }
 
             //Create effect from creation message
             var effect = new Effect(message, resourceCache, _mapManager, _entityManager);
+            effect.Deathtime = gameTiming.CurTime + message.LifeTime;
             if (effect.AttachedEntityUid != null)
             {
                 effect.AttachedEntity = _entityManager.GetEntity(effect.AttachedEntityUid.Value);
             }
 
-            //Age the effect through a single update to the previous update tick of the effect system
-            //effect.Update((float)((lasttimeprocessed - effect.Age).TotalSeconds));
-
             _Effects.Add(effect);
         }
 
         public override void FrameUpdate(float frameTime)
         {
+            var curTime = gameTiming.CurTime;
             for (int i = 0; i < _Effects.Count; i++)
             {
                 var effect = _Effects[i];
 
-                //Update variables of the effect via its deltas
-                effect.Update(frameTime);
-
                 //These effects have died
-                if (effect.Age > effect.Deathtime)
+                // Effects are purely visual, so they don't need to be ran through prediction.
+                // once CurTime ever passes DeathTime (clients render the top at IsFirstTimePredicted, where this happens) just remove them.
+                if (curTime > effect.Deathtime)
                 {
                     //Remove from the effects list and decrement the iterator
                     _Effects.Remove(effect);
                     i--;
                 }
+                else
+                {
+                    //Update variables of the effect via its deltas
+                    effect.Update(frameTime);
+                }
             }
         }
 
@@ -205,14 +202,9 @@ namespace Robust.Client.GameObjects
             public bool Shaded = true;
 
             /// <summary>
-            /// Effect's age -- from 0f
+            /// CurTime after which the effect will "die"
             /// </summary>
-            public TimeSpan Age = TimeSpan.Zero;
-
-            /// <summary>
-            /// Time after which the effect will "die"
-            /// </summary>
-            public TimeSpan Deathtime = TimeSpan.FromSeconds(1);
+            public TimeSpan Deathtime;
 
             private readonly IMapManager _mapManager;
             private readonly IEntityManager _entityManager;
@@ -245,8 +237,6 @@ namespace Robust.Client.GameObjects
                 RadialAcceleration = effectcreation.RadialAcceleration;
                 TangentialVelocity = effectcreation.TangentialVelocity;
                 TangentialAcceleration = effectcreation.TangentialAcceleration;
-                Age = effectcreation.Born;
-                Deathtime = effectcreation.DeathTime;
                 Rotation = effectcreation.Rotation;
                 RotationRate = effectcreation.RotationRate;
                 Size = effectcreation.Size;
@@ -260,10 +250,6 @@ namespace Robust.Client.GameObjects
 
             public void Update(float frameTime)
             {
-                Age += TimeSpan.FromSeconds(frameTime);
-                if (Age >= Deathtime)
-                    return;
-
                 Velocity += Acceleration * frameTime;
                 RadialVelocity += RadialAcceleration * frameTime;
                 TangentialVelocity += TangentialAcceleration * frameTime;

Robust.Client/GameObjects/EntitySystems/EyeUpdateSystem.cs

@@ -1,8 +1,8 @@
 using System;
 using JetBrains.Annotations;
-using Robust.Client.Interfaces.Graphics.ClientEye;
+using Robust.Client.Graphics;
 using Robust.Client.Physics;
-using Robust.Shared.GameObjects.Systems;
+using Robust.Shared.GameObjects;
 using Robust.Shared.Input;
 using Robust.Shared.Input.Binding;
 using Robust.Shared.IoC;
@@ -10,7 +10,7 @@ using Robust.Shared.Maths;
 
 #nullable enable
 
-namespace Robust.Client.GameObjects.EntitySystems
+namespace Robust.Client.GameObjects
 {
     /// <summary>
     /// Updates the position of every Eye every frame, so that the camera follows the player around.
@@ -87,7 +87,7 @@ namespace Robust.Client.GameObjects.EntitySystems
                 }
             }
 
-            foreach (var eyeComponent in EntityManager.ComponentManager.EntityQuery<EyeComponent>())
+            foreach (var eyeComponent in EntityManager.ComponentManager.EntityQuery<EyeComponent>(true))
             {
                 eyeComponent.UpdateEyePosition();
             }

Robust.Client/GameObjects/EntitySystems/InputSystem.cs

@@ -1,19 +1,15 @@
 using System;
-using Robust.Client.GameObjects.Components;
-using Robust.Client.Interfaces.GameStates;
-using Robust.Client.Interfaces.Input;
+using Robust.Client.GameStates;
+using Robust.Client.Input;
 using Robust.Client.Player;
 using Robust.Shared.GameObjects;
-using Robust.Shared.GameObjects.Systems;
 using Robust.Shared.Input;
-using Robust.Shared.Input.Binding;
-using Robust.Shared.Interfaces.GameObjects;
 using Robust.Shared.IoC;
 using Robust.Shared.Log;
 using Robust.Shared.Players;
 using Robust.Shared.Utility;
 
-namespace Robust.Client.GameObjects.EntitySystems
+namespace Robust.Client.GameObjects
 {
     /// <summary>
     ///     Client-side processing of all input commands through the simulation.
@@ -128,7 +124,8 @@ namespace Robust.Client.GameObjects.EntitySystems
 
             if (!entity.TryGetComponent(out InputComponent? inputComp))
             {
-                Logger.DebugS("input.context", $"AttachedEnt has no InputComponent: entId={entity.Uid}, entProto={entity.Prototype}");
+                Logger.DebugS("input.context", $"AttachedEnt has no InputComponent: entId={entity.Uid}, entProto={entity.Prototype}. Setting default \"{InputContextContainer.DefaultContextName}\" context...");
+                inputMan.Contexts.SetActiveContext(InputContextContainer.DefaultContextName);
                 return;
             }
 
@@ -138,7 +135,8 @@ namespace Robust.Client.GameObjects.EntitySystems
             }
             else
             {
-                Logger.ErrorS("input.context", $"Unknown context: entId={entity.Uid}, entProto={entity.Prototype}, context={inputComp.ContextName}");
+                Logger.ErrorS("input.context", $"Unknown context: entId={entity.Uid}, entProto={entity.Prototype}, context={inputComp.ContextName}. . Setting default \"{InputContextContainer.DefaultContextName}\" context...");
+                inputMan.Contexts.SetActiveContext(InputContextContainer.DefaultContextName);
             }
         }
 

Robust.Client/GameObjects/EntitySystems/MidiSystem.cs

@@ -1,8 +1,8 @@
 using Robust.Client.Audio.Midi;
-using Robust.Shared.GameObjects.Systems;
+using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
 
-namespace Robust.Client.GameObjects.EntitySystems
+namespace Robust.Client.GameObjects
 {
     public class MidiSystem : EntitySystem
     {

Robust.Client/GameObjects/EntitySystems/RenderingTreeSystem.cs

@@ -1,16 +1,13 @@
 using System.Collections.Generic;
 using JetBrains.Annotations;
 using Robust.Client.Physics;
-using Robust.Shared.GameObjects.Components.Transform;
-using Robust.Shared.GameObjects.EntitySystemMessages;
-using Robust.Shared.GameObjects.Systems;
-using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
 using Robust.Shared.Map;
 using Robust.Shared.Maths;
 using Robust.Shared.Physics;
 
-namespace Robust.Client.GameObjects.EntitySystems
+namespace Robust.Client.GameObjects
 {
     /// <summary>
     ///     Keeps track of <see cref="DynamicTree{T}"/>s for various rendering-related components.

Robust.Client/GameObjects/EntitySystems/SpriteSystem.cs

@@ -1,10 +1,10 @@
 using JetBrains.Annotations;
-using Robust.Client.Interfaces.Graphics.ClientEye;
-using Robust.Shared.GameObjects.Systems;
+using Robust.Client.Graphics;
+using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
 using Robust.Shared.Map;
 
-namespace Robust.Client.GameObjects.EntitySystems
+namespace Robust.Client.GameObjects
 {
     /// <summary>
     /// Updates the layer animation for every visible sprite.

Robust.Client/GameObjects/EntitySystems/TransformSystem.cs

@@ -1,16 +1,14 @@
 using System;
 using System.Collections.Generic;
 using JetBrains.Annotations;
-using Robust.Shared.GameObjects.Components.Transform;
-using Robust.Shared.GameObjects.EntitySystemMessages;
-using Robust.Shared.GameObjects.Systems;
-using Robust.Shared.Interfaces.Timing;
+using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
 using Robust.Shared.Maths;
+using Robust.Shared.Timing;
 using Robust.Shared.Utility;
 using Robust.Shared.ViewVariables;
 
-namespace Robust.Client.GameObjects.EntitySystems
+namespace Robust.Client.GameObjects
 {
     /// <summary>
     ///     Handles interpolation of transform positions.

Robust.Client/GameObjects/IClientEntityManager.cs

@@ -1,8 +1,7 @@
-using Robust.Shared.GameObjects;
-using Robust.Shared.Interfaces.GameObjects;
-using System.Collections.Generic;
+using System.Collections.Generic;
+using Robust.Shared.GameObjects;
 
-namespace Robust.Client.Interfaces.GameObjects
+namespace Robust.Client.GameObjects
 {
     public interface IClientEntityManager : IEntityManager
     {

Robust.Client/GameStates/ClientGameStateManager.cs

@@ -1,23 +1,18 @@
-using System;
+using System;
 using System.Collections.Generic;
-using Robust.Client.GameObjects.EntitySystems;
-using Robust.Client.Interfaces;
-using Robust.Client.Interfaces.GameObjects;
-using Robust.Client.Interfaces.GameStates;
-using Robust.Client.Interfaces.Input;
+using Robust.Client.GameObjects;
+using Robust.Client.Input;
 using Robust.Shared.GameStates;
-using Robust.Shared.Interfaces.Network;
 using Robust.Shared.IoC;
 using Robust.Shared.Network.Messages;
 using Robust.Client.Player;
 using Robust.Shared;
+using Robust.Shared.Configuration;
 using Robust.Shared.GameObjects;
 using Robust.Shared.Input;
-using Robust.Shared.Interfaces.Configuration;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.Map;
-using Robust.Shared.Interfaces.Timing;
 using Robust.Shared.Log;
+using Robust.Shared.Map;
+using Robust.Shared.Network;
 using Robust.Shared.Timing;
 using Robust.Shared.Utility;
 
@@ -41,7 +36,7 @@ namespace Robust.Client.GameStates
         [Dependency] private readonly IBaseClient _client = default!;
         [Dependency] private readonly IMapManager _mapManager = default!;
         [Dependency] private readonly IGameTiming _timing = default!;
-        [Dependency] private readonly IConfigurationManager _config = default!;
+        [Dependency] private readonly INetConfigurationManager _config = default!;
         [Dependency] private readonly IEntitySystemManager _entitySystemManager = default!;
         [Dependency] private readonly IComponentManager _componentManager = default!;
         [Dependency] private readonly IInputManager _inputManager = default!;
@@ -57,7 +52,8 @@ namespace Robust.Client.GameStates
 
         public bool Predicting { get; private set; }
 
-        public int PredictSize { get; private set; }
+        public int PredictTickBias { get; private set; }
+        public float PredictLagBias { get; private set; }
 
         public int StateBufferMergeThreshold { get; private set; }
 
@@ -82,14 +78,16 @@ namespace Robust.Client.GameStates
             _config.OnValueChanged(CVars.NetInterpRatio, i => _processor.InterpRatio = i, true);
             _config.OnValueChanged(CVars.NetLogging, b => _processor.Logging = b, true);
             _config.OnValueChanged(CVars.NetPredict, b => Predicting = b, true);
-            _config.OnValueChanged(CVars.NetPredictSize, i => PredictSize = i, true);
+            _config.OnValueChanged(CVars.NetPredictTickBias, i => PredictTickBias = i, true);
+            _config.OnValueChanged(CVars.NetPredictLagBias, i => PredictLagBias = i, true);
             _config.OnValueChanged(CVars.NetStateBufMergeThreshold, i => StateBufferMergeThreshold = i, true);
 
             _processor.Interpolation = _config.GetCVar(CVars.NetInterp);
             _processor.InterpRatio = _config.GetCVar(CVars.NetInterpRatio);
             _processor.Logging = _config.GetCVar(CVars.NetLogging);
             Predicting = _config.GetCVar(CVars.NetPredict);
-            PredictSize = _config.GetCVar(CVars.NetPredictSize);
+            PredictTickBias = _config.GetCVar(CVars.NetPredictTickBias);
+            PredictLagBias = _config.GetCVar(CVars.NetPredictLagBias);
         }
 
         /// <inheritdoc />
@@ -174,7 +172,7 @@ namespace Robust.Client.GameStates
             var i = 0;
             for (; i < applyCount; i++)
             {
-                _timing.CurTick = _lastProcessedTick + 1;
+                _timing.LastRealTick = _timing.CurTick = _lastProcessedTick + 1;
 
                 // TODO: We could theoretically communicate with the GameStateProcessor better here.
                 // Since game states are sliding windows, it is possible that we need less than applyCount applies here.
@@ -256,9 +254,9 @@ namespace Robust.Client.GameStates
             var hasPendingInput = pendingInputEnumerator.MoveNext();
             var hasPendingMessage = pendingMessagesEnumerator.MoveNext();
 
-            var ping = _network.ServerChannel!.Ping / 1000f; // seconds.
+            var ping = _network.ServerChannel!.Ping / 1000f + PredictLagBias; // seconds.
             var targetTick = _timing.CurTick.Value + _processor.TargetBufferSize +
-                             (int) Math.Ceiling(_timing.TickRate * ping) + PredictSize;
+                             (int) Math.Ceiling(_timing.TickRate * ping) + PredictTickBias;
 
             // Logger.DebugS("net.predict", $"Predicting from {_lastProcessedTick} to {targetTick}");
 
@@ -377,6 +375,7 @@ namespace Robust.Client.GameStates
 
         private List<EntityUid> ApplyGameState(GameState curState, GameState? nextState)
         {
+            _config.TickProcessMessages();
             _mapManager.ApplyGameStatePre(curState.MapData);
             var createdEntities = _entities.ApplyEntityStates(curState.EntityStates, curState.EntityDeletions,
                 nextState?.EntityStates);

Robust.Client/GameStates/GameStateProcessor.cs

@@ -3,7 +3,6 @@ using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using Robust.Shared.GameObjects;
 using Robust.Shared.GameStates;
-using Robust.Shared.Interfaces.Timing;
 using Robust.Shared.Log;
 using Robust.Shared.Timing;
 using Robust.Shared.Utility;

Robust.Client/GameStates/IClientGameStateManager.cs

@@ -1,10 +1,9 @@
 using System;
-using Robust.Client.GameStates;
 using Robust.Shared.GameObjects;
 using Robust.Shared.Input;
 using Robust.Shared.Timing;
 
-namespace Robust.Client.Interfaces.GameStates
+namespace Robust.Client.GameStates
 {
     /// <summary>
     ///     Engine service that provides processing and management of game states.

Robust.Client/GameStates/NetEntityOverlay.cs

@@ -0,0 +1,254 @@
+using System.Collections.Generic;
+using Robust.Client.Graphics;
+using Robust.Client.ResourceManagement;
+using Robust.Shared.Configuration;
+using Robust.Shared.Console;
+using Robust.Shared.GameObjects;
+using Robust.Shared.IoC;
+using Robust.Shared.Maths;
+using Robust.Shared.Network;
+using Robust.Shared.Timing;
+
+namespace Robust.Client.GameStates
+{
+    /// <summary>
+    /// A network entity report that lists all entities as they are updated through game states.
+    /// https://developer.valvesoftware.com/wiki/Networking_Entities#cl_entityreport
+    /// </summary>
+    class NetEntityOverlay : Overlay
+    {
+        [Dependency] private readonly IGameTiming _gameTiming = default!;
+        [Dependency] private readonly IClientNetManager _netManager = default!;
+        [Dependency] private readonly IClientGameStateManager _gameStateManager = default!;
+        [Dependency] private readonly IEntityManager _entityManager = default!;
+        [Dependency] private readonly IConfigurationManager _configurationManager = default!;
+        [Dependency] private readonly IEyeManager _eyeManager = default!;
+
+        private const int TrafficHistorySize = 64; // Size of the traffic history bar in game ticks.
+
+        /// <inheritdoc />
+        public override OverlaySpace Space => OverlaySpace.ScreenSpace;
+        
+        private readonly Font _font;
+        private readonly int _lineHeight;
+        private readonly List<NetEntity> _netEnts = new();
+
+        public NetEntityOverlay() : base(nameof(NetEntityOverlay))
+        {
+            IoCManager.InjectDependencies(this);
+            var cache = IoCManager.Resolve<IResourceCache>();
+            _font = new VectorFont(cache.GetResource<FontResource>("/Fonts/NotoSans/NotoSans-Regular.ttf"), 10);
+            _lineHeight = _font.GetLineHeight(1);
+
+            _gameStateManager.GameStateApplied += HandleGameStateApplied;
+        }
+        
+        private void HandleGameStateApplied(GameStateAppliedArgs args)
+        {
+            if(_gameTiming.InPrediction) // we only care about real server states.
+                return;
+            
+            // Shift traffic history down one
+            for (var i = 0; i < _netEnts.Count; i++)
+            {
+                var traffic = _netEnts[i].Traffic;
+                for (int j = 1; j < TrafficHistorySize; j++)
+                {
+                    traffic[j - 1] = traffic[j];
+                }
+
+                traffic[^1] = 0;
+            }
+
+            var gameState = args.AppliedState;
+
+            if(gameState.EntityStates is not null)
+            {
+                // Loop over every entity that gets updated this state and record the traffic
+                foreach (var entityState in gameState.EntityStates)
+                {
+                    var newEnt = true;
+                    for(var i=0;i<_netEnts.Count;i++)
+                    {
+                        var netEnt = _netEnts[i];
+
+                        if (netEnt.Id != entityState.Uid)
+                            continue;
+                    
+                        //TODO: calculate size of state and record it here.
+                        netEnt.Traffic[^1] = 1;
+                        netEnt.LastUpdate = gameState.ToSequence;
+                        newEnt = false;
+                        _netEnts[i] = netEnt; // copy struct back
+                        break;
+                    }
+
+                    if (!newEnt)
+                        continue;
+
+                    var newNetEnt = new NetEntity(entityState.Uid);
+                    newNetEnt.Traffic[^1] = 1;
+                    newNetEnt.LastUpdate = gameState.ToSequence;
+                    _netEnts.Add(newNetEnt);
+                }
+            }
+
+            bool pvsEnabled = _configurationManager.GetCVar<bool>("net.pvs");
+            float pvsSize = _configurationManager.GetCVar<float>("net.maxupdaterange");
+            var pvsCenter = _eyeManager.CurrentEye.Position;
+            Box2 pvsBox = Box2.CenteredAround(pvsCenter.Position, new Vector2(pvsSize*2, pvsSize*2));
+
+            int timeout = _gameTiming.TickRate * 3;
+            for (int i = 0; i < _netEnts.Count; i++)
+            {
+                var netEnt = _netEnts[i];
+                
+                if(_entityManager.EntityExists(netEnt.Id))
+                {
+                    //TODO: Whoever is working on PVS remake, change the InPVS detection.
+                    var position = _entityManager.GetEntity(netEnt.Id).Transform.MapPosition;
+                    netEnt.InPVS =  !pvsEnabled || (pvsBox.Contains(position.Position) && position.MapId == pvsCenter.MapId);
+                    _netEnts[i] = netEnt; // copy struct back
+                    continue;
+                }
+
+                netEnt.Exists = false;
+                if (netEnt.LastUpdate.Value + timeout < _gameTiming.LastRealTick.Value)
+                {
+                    _netEnts.RemoveAt(i);
+                    i--;
+                    continue;
+                }
+
+                _netEnts[i] = netEnt; // copy struct back
+            }
+        }
+        
+        protected override void Draw(DrawingHandleBase handle, OverlaySpace currentSpace)
+        {
+            if (!_netManager.IsConnected)
+                return;
+
+            // remember, 0,0 is top left of ui with +X right and +Y down
+            var screenHandle = (DrawingHandleScreen)handle;
+            
+            for (int i = 0; i < _netEnts.Count; i++)
+            {
+                var netEnt = _netEnts[i];
+
+                var xPos = 100;
+                var yPos = 10 + _lineHeight * i;
+                var name = $"({netEnt.Id}) {_entityManager.GetEntity(netEnt.Id).Prototype?.ID}";
+                var color = CalcTextColor(ref netEnt);
+                DrawString(screenHandle, _font, new Vector2(xPos + (TrafficHistorySize + 4), yPos), name, color);
+                DrawTrafficBox(screenHandle, ref netEnt, xPos, yPos);
+            }
+        }
+
+        private void DrawTrafficBox(DrawingHandleScreen handle, ref NetEntity netEntity, int x, int y)
+        {
+            handle.DrawRect(UIBox2.FromDimensions(x+1, y, TrafficHistorySize + 1, _lineHeight), new Color(32, 32, 32, 128));
+            handle.DrawRect(UIBox2.FromDimensions(x, y, TrafficHistorySize + 2, _lineHeight), Color.Gray.WithAlpha(0.15f), false);
+
+            var traffic = netEntity.Traffic;
+
+            //TODO: Local peak size, actually scale the peaks
+            for (int i = 0; i < TrafficHistorySize; i++)
+            {
+                if(traffic[i] == 0)
+                    continue;
+
+                var xPos = x + 1 + i;
+                var yPosA = y + 1;
+                var yPosB = yPosA + _lineHeight - 1;
+                handle.DrawLine(new Vector2(xPos, yPosA), new Vector2(xPos, yPosB), Color.Green);
+            }
+        }
+
+        private Color CalcTextColor(ref NetEntity ent)
+        {
+            if(!ent.Exists)
+                return Color.Gray; // Entity is deleted, will be removed from list soon.
+
+            if(!ent.InPVS)
+                return Color.Red; // Entity still exists outside PVS, but not updated anymore.
+
+            if(_gameTiming.LastRealTick < ent.LastUpdate + _gameTiming.TickRate)
+                return Color.Blue; //Entity in PVS generating ongoing traffic.
+
+            return Color.Green; // Entity in PVS, but not updated recently.
+        }
+
+        protected override void Dispose(bool disposing)
+        {
+            _gameStateManager.GameStateApplied -= HandleGameStateApplied;
+
+            base.Dispose(disposing);
+        }
+
+        private static void DrawString(DrawingHandleScreen handle, Font font, Vector2 pos, string str, Color textColor)
+        {
+            var baseLine = new Vector2(pos.X, font.GetAscent(1) + pos.Y);
+
+            foreach (var chr in str)
+            {
+                var advance = font.DrawChar(handle, chr, baseLine, 1, textColor);
+                baseLine += new Vector2(advance, 0);
+            }
+        }
+
+        private struct NetEntity
+        {
+            public GameTick LastUpdate;
+            public readonly EntityUid Id;
+            public readonly int[] Traffic;
+            public bool Exists;
+            public bool InPVS;
+
+            public NetEntity(EntityUid id)
+            {
+                LastUpdate = GameTick.Zero;
+                Id = id;
+                Traffic = new int[TrafficHistorySize];
+                Exists = true;
+                InPVS = true;
+            }
+        }
+
+        private class NetEntityReportCommand : IConsoleCommand
+        {
+            public string Command => "net_entityreport";
+            public string Help => "net_entityreport <0|1>";
+            public string Description => "Toggles the net entity report panel.";
+
+            public void Execute(IConsoleShell shell, string argStr, string[] args)
+            {
+                if (args.Length != 1)
+                {
+                    shell.WriteError("Invalid argument amount. Expected 2 arguments.");
+                    return;
+                }
+
+                if (!byte.TryParse(args[0], out var iValue))
+                {
+                    shell.WriteError("Invalid argument: Needs to be 0 or 1.");
+                    return;
+                }
+
+                var bValue = iValue > 0;
+                var overlayMan = IoCManager.Resolve<IOverlayManager>();
+
+                if(bValue && !overlayMan.HasOverlay(nameof(NetEntityOverlay)))
+                {
+                    overlayMan.AddOverlay(new NetEntityOverlay());
+                    shell.WriteLine("Enabled network entity report overlay.");
+                }
+                else if(!bValue && overlayMan.HasOverlay(nameof(NetEntityOverlay)))
+                {
+                    overlayMan.RemoveOverlay(nameof(NetEntityOverlay));
+                    shell.WriteLine("Disabled network entity report overlay.");
+                }
+            }
+        }
+    }
+}

Robust.Client/GameStates/NetGraphOverlay.cs

@@ -1,16 +1,10 @@
 using System.Collections.Generic;
 using Robust.Client.Graphics;
-using Robust.Client.Graphics.Drawing;
-using Robust.Client.Graphics.Overlays;
-using Robust.Client.Interfaces.Console;
-using Robust.Client.Interfaces.GameStates;
-using Robust.Client.Interfaces.Graphics.Overlays;
-using Robust.Client.Interfaces.ResourceManagement;
 using Robust.Client.ResourceManagement;
-using Robust.Shared.Interfaces.Network;
-using Robust.Shared.Interfaces.Timing;
+using Robust.Shared.Console;
 using Robust.Shared.IoC;
 using Robust.Shared.Maths;
+using Robust.Shared.Network;
 using Robust.Shared.Timing;
 
 namespace Robust.Client.GameStates
@@ -172,18 +166,18 @@ namespace Robust.Client.GameStates
             public string Help => "net_graph <0|1>";
             public string Description => "Toggles the net statistics pannel.";
 
-            public bool Execute(IDebugConsole console, params string[] args)
+            public void Execute(IConsoleShell shell, string argStr, string[] args)
             {
                 if (args.Length != 1)
                 {
-                    console.AddLine("Invalid argument amount. Expected 2 arguments.", Color.Red);
-                    return false;
+                    shell.WriteError("Invalid argument amount. Expected 2 arguments.");
+                    return;
                 }
 
                 if (!byte.TryParse(args[0], out var iValue))
                 {
-                    console.AddLine("Invalid argument: Needs to be 0 or 1.");
-                    return false;
+                    shell.WriteLine("Invalid argument: Needs to be 0 or 1.");
+                    return;
                 }
 
                 var bValue = iValue > 0;
@@ -192,15 +186,13 @@ namespace Robust.Client.GameStates
                 if(bValue && !overlayMan.HasOverlay(nameof(NetGraphOverlay)))
                 {
                     overlayMan.AddOverlay(new NetGraphOverlay());
-                    console.AddLine("Enabled network overlay.");
+                    shell.WriteLine("Enabled network overlay.");
                 }
                 else if(overlayMan.HasOverlay(nameof(NetGraphOverlay)))
                 {
                     overlayMan.RemoveOverlay(nameof(NetGraphOverlay));
-                    console.AddLine("Disabled network overlay.");
+                    shell.WriteLine("Disabled network overlay.");
                 }
-
-                return false;
             }
         }
     }

Robust.Client/GameStates/NetInterpOverlay.cs

@@ -1,16 +1,11 @@
-using Robust.Client.Graphics.Drawing;
-using Robust.Client.Graphics.Overlays;
-using Robust.Client.Graphics.Shaders;
-using Robust.Client.Interfaces.Console;
-using Robust.Client.Interfaces.Graphics.ClientEye;
-using Robust.Client.Interfaces.Graphics.Overlays;
-using Robust.Shared.GameObjects.Components;
-using Robust.Shared.Interfaces.GameObjects;
-using Robust.Shared.Interfaces.Timing;
+using Robust.Client.Graphics;
+using Robust.Shared.Console;
+using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
 using Robust.Shared.Maths;
 using Robust.Shared.Physics;
 using Robust.Shared.Prototypes;
+using Robust.Shared.Timing;
 
 namespace Robust.Client.GameStates
 {
@@ -34,7 +29,7 @@ namespace Robust.Client.GameStates
             handle.UseShader(_shader);
             var worldHandle = (DrawingHandleWorld) handle;
             var viewport = _eyeManager.GetWorldViewport();
-            foreach (var boundingBox in _componentManager.EntityQuery<IPhysicsComponent>())
+            foreach (var boundingBox in _componentManager.EntityQuery<IPhysicsComponent>(true))
             {
                 // all entities have a TransformComponent
                 var transform = ((IComponent)boundingBox).Owner.Transform;
@@ -73,18 +68,18 @@ namespace Robust.Client.GameStates
             public string Help => "net_draw_interp <0|1>";
             public string Description => "Toggles the debug drawing of the network interpolation.";
 
-            public bool Execute(IDebugConsole console, params string[] args)
+            public void Execute(IConsoleShell shell, string argStr, string[] args)
             {
                 if (args.Length != 1)
                 {
-                    console.AddLine("Invalid argument amount. Expected 2 arguments.", Color.Red);
-                    return false;
+                    shell.WriteError("Invalid argument amount. Expected 2 arguments.");
+                    return;
                 }
 
                 if (!byte.TryParse(args[0], out var iValue))
                 {
-                    console.AddLine("Invalid argument: Needs to be 0 or 1.");
-                    return false;
+                    shell.WriteLine("Invalid argument: Needs to be 0 or 1.");
+                    return;
                 }
 
                 var bValue = iValue > 0;
@@ -93,15 +88,13 @@ namespace Robust.Client.GameStates
                 if (bValue && !overlayMan.HasOverlay(nameof(NetInterpOverlay)))
                 {
                     overlayMan.AddOverlay(new NetInterpOverlay());
-                    console.AddLine("Enabled network interp overlay.");
+                    shell.WriteLine("Enabled network interp overlay.");
                 }
                 else if (overlayMan.HasOverlay(nameof(NetInterpOverlay)))
                 {
                     overlayMan.RemoveOverlay(nameof(NetInterpOverlay));
-                    console.AddLine("Disabled network interp overlay.");
+                    shell.WriteLine("Disabled network interp overlay.");
                 }
-
-                return false;
             }
         }
     }