Add heuristics to not always rebuild script project on play

- Added `ContinueWith` to BackgroundTask
- Added setting for Path to `dotnet` executable
- Added detection and check of installed .Net SDKs

.github/workflows/trigger-docs.yml

@@ -0,0 +1,19 @@
+name: Trigger docs build
+
+# Rebuilds the documentation website (aharabada/glitchy-engine-docs) whenever main changes
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+permissions: {}
+
+jobs:
+  dispatch:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Notify docs repository
+        env:
+          # Fine-grained PAT, only for glitchy-engine-docs, permission "Contents: Read and write"
+          GH_TOKEN: ${{ secrets.DOCS_DISPATCH_TOKEN }}
+        run: gh api repos/aharabada/glitchy-engine-docs/dispatches -f event_type=engine-updated

BeefSpace.toml

@@ -1,8 +1,10 @@
 FileVersion = 1
 Locked = ["ImGui"]
+Unlocked = ["corlib"]
 
 [Workspace]
 StartupProject = "GlitchyEditor"
+PreprocessorMacros = ["IMGUI"]
 
 [Projects]
 GlitchyEngine = {Path = "GlitchyEngine"}
@@ -20,17 +22,24 @@ ImGuizmo = {Path = "GlitchyEngine/vendor/imgui/ImGuizmo"}
 GlitchyEngineHelper = {Path = "GlitchyEngineHelper"}
 bon = {Path = "GlitchyEngine/vendor/bon"}
 box2d-beef = {Path = "GlitchyEngine/vendor/box2D"}
-"Beef.Linq" = {Path = "GlitchyEngine/vendor/Beef.Linq/src"}
 ScriptCore = {Path = "ScriptCore"}
 NetHostBeef = {Path = "GlitchyEngine/vendor/NetHostBeef/NetHostBeef"}
 "GlitchyEngine.Test" = {Path = "GlitchyEngine.Test"}
 Xml-Beef = {Path = "GlitchyEngine/vendor/Xml-Beef"}
 "GlitchyEngine.Benchmark" = {Path = "GlitchyEngine.Benchmark"}
+"Beef.Linq" = {Path = "GlitchyEngine/vendor/Beef.Linq"}
+"Oregano.git" = {Git = "https://github.com/zerkawei/Oregano.git"}
 
 [WorkspaceFolders]
 GlitchyEngine = ["GlitchyEngine", "GlitchLog", "GlitchyEngineHelper", "ScriptCore", "GlitchyEngine.Test", "GlitchyEngine.Benchmark"]
-"GlitchyEngine/Dependencies" = ["cgltf-beef", "DirectX", "FreeType", "ImGui", "ImGuiImplDX11", "ImGuiImplWin32", "ImGuizmo", "LodePng", "msdfgen-beef", "bon", "box2d-beef", "Beef.Linq", "NetHostBeef", "Xml-Beef"]
+"GlitchyEngine/Dependencies" = ["cgltf-beef", "DirectX", "FreeType", "ImGui", "ImGuiImplDX11", "ImGuiImplWin32", "ImGuizmo", "LodePng", "msdfgen-beef", "bon", "box2d-beef", "NetHostBeef", "Xml-Beef", "Beef.Linq"]
 Beef = ["Beefy2D", "corlib"]
 
 [Configs.Debug.Win64]
 AllocStackTraceDepth = 12
+ConfigSelections = {"GlitchyEngine.Test" = {Enabled = false}}
+
+[Configs.Release.Win64]
+Toolset = "Microsoft"
+LTOType = "None"
+ConfigSelections = {"GlitchyEngine.Test" = {Enabled = false}}

BeefSpace_Lock.toml

@@ -0,0 +1,6 @@
+FileVersion = 1
+
+[Locks."Oregano.git".Git]
+URL = "https://github.com/zerkawei/Oregano.git"
+Tag = ""
+Hash = "0811b2dc6a878c472d2bc08b37ebc0862f853290"

GlitchyEditor/BeefProj.toml

@@ -15,13 +15,14 @@ ImGuiImplDX11 = "*"
 ImGuiImplWin32 = "*"
 ImGuizmo = "*"
 "Beef.Linq" = "*"
+"Oregano.git" = {Git = "https://github.com/zerkawei/Oregano.git"}
 
 [Platform.Windows]
 IconFile = "$(ProjectDir)/Resources/Textures/GlitchyEngineIcon.ico"
 
 [Configs.Debug.Win64]
 PostBuildCmds = ["CopyFilesIfNewer(\"$(WorkspaceDir)/bin/vswhere.exe\", \"$(TargetDir)\")"]
-DebugCommandArguments = "\"$(ProjectDir)/../GlitchyEngine.Test/content/TestProject\""
+DebugCommandArguments = "\"D:\\Development\\Git\\SingleStateToOrbit\\\""
 PreprocessorMacros = ["DEBUG", "IMGUI"]
 
 [Configs.Release.Win64]

GlitchyEditor/resources/ProjectTemplate/[ProjectName].csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
         <!-- General configuration -->
     <AssemblyTitle>[ProjectName]</AssemblyTitle>
@@ -10,6 +10,7 @@
     <OutputPath>./.cache/bin/</OutputPath>
     <!-- Generates a runtimeconfig-file and copies nuget references to the output -->
     <EnableDynamicLoading>true</EnableDynamicLoading>
+    <DefaultItemExcludes>$(DefaultItemExcludes);**/*.ass</DefaultItemExcludes>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="ScriptCore" OutputItemType="Analyzer" ReferenceOutputAssembly="true">

GlitchyEditor/src/Assets/AssetHierarchy.bf

@@ -33,6 +33,10 @@ class AssetHierarchy
 
 	public TreeNode<AssetNode> RootNode => _assetRootNode;
 
+	private append ScriptProjectDirtyManager _scriptProjectDirtyManager = .();
+
+	public ScriptProjectDirtyManager ScriptProjectDirtyManager => _scriptProjectDirtyManager;
+
 	public StringView ResourcesDirectory
 	{
 		get => _resourcesDirectory;
@@ -235,6 +239,8 @@ class AssetHierarchy
 		//SetupResourcesFileSystemWatcher();
 
 		UpdateFiles();
+
+		ScriptProjectDirtyManager.SetVeryDirty();
 	}
 
 	/// Sets path to the directory that contains the game assets.
@@ -322,18 +328,24 @@ class AssetHierarchy
 			Log.EngineLogger.Trace($"File content changed (\"{filename}\")");
 
 			FileContentChanged(filename);
+
+			ScriptProjectDirtyManager.AssetChanged(filename);
 		});
 
 		fsw.OnCreated.Add(new (filename) => {
 			Log.EngineLogger.Trace($"File created (\"{filename}\")");
 
 			DeferFileTreeUpdate();
+
+			ScriptProjectDirtyManager.AssetChanged(filename);
 		});
 
 		fsw.OnDeleted.Add(new (filename) => {
 			Log.EngineLogger.Trace($"File deleted (\"{filename}\")");
 
 			DeferFileTreeUpdate();
+
+			ScriptProjectDirtyManager.AssetChanged(filename);
 		});
 
 		fsw.OnRenamed.Add(new (oldName, newName) => {
@@ -342,6 +354,9 @@ class AssetHierarchy
 			FileRenamed(oldName, newName);
 			
 			DeferFileTreeUpdate();
+
+			ScriptProjectDirtyManager.AssetChanged(oldName);
+			ScriptProjectDirtyManager.AssetChanged(newName);
 		});
 
 		fsw.StartRaisingEvents();

GlitchyEditor/src/Assets/ScriptProjectDirtyManager.bf

@@ -0,0 +1,187 @@
+using System;
+using System.IO;
+using System.Collections;
+using Oregano;
+using System.Diagnostics;
+using GlitchyEditor.Settings;
+
+namespace GlitchyEditor.Assets;
+
+class ScriptProjectDirtyManager
+{
+	private bool _anyAssetDirty;
+	private bool _projectFileDirty;
+	private bool _forceRebuild;
+
+	public void AssetChanged(StringView assetPath)
+	{
+		_anyAssetDirty = true;
+
+		_projectFileDirty |= CheckIfProjectFile(assetPath);
+	}
+
+	private bool CheckIfProjectFile(StringView assetPath)
+	{
+		for (Regex regex in _patterns)
+		{
+			if (regex.IsMatch(assetPath))
+			{
+				return true;
+			}
+		}
+
+		return false;
+	}
+	
+	public void SetClean()
+	{
+		_anyAssetDirty = false;
+		_projectFileDirty = false;
+		_forceRebuild = false;
+	}
+
+	public void SetVeryDirty()
+	{
+		_forceRebuild = true;
+	}
+
+	public bool NeedsRebuild(RebuildOnPlay rebuildMode)
+	{
+		switch (rebuildMode)
+		{
+		case .Off:
+			return _forceRebuild;
+		case .Always:
+			return true;
+		case .WhenAnyAssetsChanged:
+			return _anyAssetDirty || _forceRebuild;
+		case .UseFastUpToDateCheck:
+			return _projectFileDirty || _forceRebuild;
+		}
+	}
+
+	private static List<StringView> patterns = new .(){
+		"**/*.cs", // C# source files
+		"**/*.csproj", // C# Project file
+		"**/*.props", // MSBuild properties
+		"**/*.targets", // MSBuild targets
+		"**/*.resx", // Embedded .NET-Ressources
+		"**/*.editorconfig", // Compiler- and Analyzer-config
+		"**/*.globalconfig", // Global Analyzer-config
+		"**/global.json",
+		"**/NuGet.Config",
+		"**/packages.lock.json",
+		"**/runtimeconfig.template.json"
+	} ~ delete _;
+
+	private List<Regex> _patterns = new .() ~ DeleteContainerAndItems!(_);
+	// Oregano's Regex doesn't copy the pattern but keeps StringViews into it, so the strings must live as long as the regexes.
+	private List<String> _patternStrings = new .() ~ DeleteContainerAndItems!(_);
+
+	public this()
+	{
+		for (StringView pattern in patterns)
+		{
+			String regexString = new .();
+
+			if (CompileRegexFromGlob(pattern, regexString) case .Ok(let regex))
+			{
+				_patternStrings.Add(regexString);
+				_patterns.Add(regex);
+			}
+			else
+			{
+				delete regexString;
+			}
+		}
+	}
+
+	/// Converts the glob into a regex string (written to outRegex) and compiles it.
+	/// The returned Regex references outRegex, so outRegex must outlive it.
+	private static Result<Regex> CompileRegexFromGlob(StringView glob, String outRegex)
+	{
+		outRegex.Append('^');
+
+		int inBrackets = 0;
+		bool isInBrackets() => inBrackets > 0;
+
+		bool isWildcard = false;
+		bool wasDoubleWildcard = false;
+
+		for (char8 c in glob)
+		{
+			if (isWildcard)
+			{
+				isWildcard = false;
+				if (c == '*')
+				{
+					// **
+					outRegex.Append(@"(?:.*[\\/])?");
+					wasDoubleWildcard = true;
+					continue;
+				}
+				else
+				{
+					outRegex.Append(@"[^\\/]*");
+				}
+			}
+
+			if (c == '[')
+			{
+				inBrackets++;
+				outRegex.Append(c);
+				continue;
+			}
+			else if (c == ']')
+			{
+				inBrackets--;
+				outRegex.Append(c);
+				continue;
+			}
+
+			if (c == '.')
+			{
+				if (isInBrackets())
+					outRegex.Append('.');
+				else
+					outRegex.Append(@"\.");
+
+				continue;
+			}
+
+			if (isInBrackets())
+			{
+				outRegex.Append(c);
+				continue;
+			}
+			else
+			{
+				if (c == '?')
+				{
+					outRegex.Append(@"[^\\/]");
+					continue;
+				}
+				else if (c == '*')
+				{
+					isWildcard = true;
+					continue;
+				}
+				else if (c == '/')
+				{
+					if (!wasDoubleWildcard)
+						outRegex.Append(@"\/");
+					continue;
+				}
+				else
+				{
+					outRegex.Append(c);
+					continue;
+				}
+			}
+		}
+
+		outRegex.Append('$');
+
+		return Regex.Compile(outRegex);
+	}
+}

GlitchyEditor/src/EditWindows/ComponentEditWindow.bf

@@ -8,7 +8,6 @@ using GlitchyEngine;
 using GlitchyEngine.Content;
 using GlitchyEngine.Scripting;
 using GlitchyEngine.Core;
-using Mono;
 using GlitchyEngine.World.Components;
 
 namespace GlitchyEditor.EditWindows
@@ -179,7 +178,7 @@ namespace GlitchyEditor.EditWindows
 			
 			float2 buttonSize = ImGui.GetTextLineHeight().XX;
 			
-			ImGui.PushStyleColor(.Button, .(0, 0, 0, 0));
+			ImGui.PushStyleColor(.Button, ColorRGBA(0, 0, 0, 0));
 
 			if (showComponentContextMenu != null)
 			{
@@ -205,7 +204,7 @@ namespace GlitchyEditor.EditWindows
 				positionX -= buttonSize.X + ImGui.GetStyle().FramePadding.x;
 				ImGui.SameLine(positionX);
 
-				if (ImGui.ImageButton("save", EditorIcons.Instance.Icon_Save, (.)buttonSize))
+				if (ImGui.ImageButton("save_to_editor", EditorIcons.Instance.Icon_Save, (.)buttonSize))
 				{
 					if (Entity editorEntity = Editor.Instance.EditorScene.GetEntityByID(entity.UUID))
 					{
@@ -213,9 +212,21 @@ namespace GlitchyEditor.EditWindows
 						
 						if (typeof(TComponent) == typeof(ScriptComponent))
 						{
-							// TODO: Copy script data into editor
+							// Dirty hack to get to the serialized script instances of the editor scene.
-							// TODO: Somehow get the scriptserializer used to serialize the editor scene
+							var serializer = EditorApp.Instance.EditorLayer.[Friend]_scriptSerializer;
-							//scriptSerializer.SerializeScriptInstance(((ScriptComponent*)component).Instance);
+
+							// Dirty hack to remove the old data
+							if (serializer.SerializedObjects.GetAndRemove(entity.UUID) case .Ok(let kvPair))
+							{
+								delete kvPair.value;
+							}
+
+							// Just save the new data into the context (what could possibly go wrong?!)
+							// this could probably serialize too much data into our context (because we can serialize reference types)
+							// and leave a bunch of dangling data in it (because we can serialize reference types)
+							serializer.SerializeScriptInstance(((ScriptComponent*)component).Instance);
+							// This is also a massive hack to make sure we don't keep references to types, but this also mean we might serialize too much?
+							serializer.FinishSerialization();
 						}
 					}
 					else

GlitchyEditor/src/EditWindows/ContentBrowserWindow.bf

@@ -604,7 +604,7 @@ namespace GlitchyEditor.EditWindows
 
 			if (ImGui.MenuItem("Open C# Project..."))
 			{
-				Editor.Instance.IdeAdapter.OpenScriptProject();
+				Editor.Instance.OpenScriptProject();
 			}
 
 			ImGui.AttachTooltip("Opens the C# Solution of this project.");
@@ -1434,7 +1434,7 @@ namespace GlitchyEditor.EditWindows
 				// Special treatment for scripts, open them in Visual Studio.
 				if (entry->Path.EndsWith(".cs"))
 				{
-					Editor.Instance.IdeAdapter.OpenScript(entry->Path);
+					Editor.Instance.OpenScript(entry->Path);
 				}
 				else if (Path.OpenFolder(entry->Path) case .Err)
 					Log.EngineLogger.Error("Failed to open file.");

GlitchyEditor/src/EditWindows/LogWindow.bf

@@ -9,6 +9,8 @@ using GlitchyEngine.Renderer;
 using GlitchyEngine;
 using GlitchyEditor.CodeEditors;
 using System.IO;
+using GlitchyEditor.Settings;
+using GlitchyEngine.Math;
 
 namespace GlitchyEditor.EditWindows;
 
@@ -137,7 +139,7 @@ class LogWindow : EditorWindow
 			if (_visibleMessageTypes.HasFlag(.Trace))
 				ImGui.PushStyleColor(.Button, *col);
 			else
-				ImGui.PushStyleColor(.Button, .(0, 0, 0, 0));
+				ImGui.PushStyleColor(.Button, ColorRGBA(0, 0, 0, 0));
 
 			if (ImGui.ImageButtonEx(1, s_TraceIcon, buttonSize, .Zero, .Ones))
 				_visibleMessageTypes ^= .Trace;
@@ -147,7 +149,7 @@ class LogWindow : EditorWindow
 			if (_visibleMessageTypes.HasFlag(.Info))
 				ImGui.PushStyleColor(.Button, *col);
 			else
-				ImGui.PushStyleColor(.Button, .(0, 0, 0, 0));
+				ImGui.PushStyleColor(.Button, ColorRGBA(0, 0, 0, 0));
 
 			if (ImGui.ImageButtonEx(2, s_InfoIcon, buttonSize, .Zero, .Ones))
 				_visibleMessageTypes ^= .Info;
@@ -157,7 +159,7 @@ class LogWindow : EditorWindow
 			if (_visibleMessageTypes.HasFlag(.Warning))
 				ImGui.PushStyleColor(.Button, *col);
 			else
-				ImGui.PushStyleColor(.Button, .(0, 0, 0, 0));
+				ImGui.PushStyleColor(.Button, ColorRGBA(0, 0, 0, 0));
 
 			if (ImGui.ImageButtonEx(3, s_WarningIcon, buttonSize, .Zero, .Ones))
 				_visibleMessageTypes ^= .Warning;
@@ -167,7 +169,7 @@ class LogWindow : EditorWindow
 			if (_visibleMessageTypes.HasFlag(.Error))
 				ImGui.PushStyleColor(.Button, *col);
 			else
-				ImGui.PushStyleColor(.Button, .(0, 0, 0, 0));
+				ImGui.PushStyleColor(.Button, ColorRGBA(0, 0, 0, 0));
 
 
 			if (ImGui.ImageButtonEx(4, s_ErrorIcon, buttonSize, .Zero, .Ones))
@@ -316,8 +318,7 @@ class LogWindow : EditorWindow
 								float width = ImGui.CalcTextSize(lineBuffer.CStr()).x;
 								if (ImGui.Selectable(lineBuffer, false, .None, .(width, 0)))
 								{
-									// TODO: Columns?
+									Editor.Instance.OpenScript(frameInfo.FileName, frameInfo.Line, frameInfo.Column);
-									Editor.Instance.IdeAdapter.OpenScript(frameInfo.FileName, frameInfo.Line, frameInfo.Column);
 								}
 							}
 
@@ -336,13 +337,13 @@ class LogWindow : EditorWindow
 				{
 					if (message.Source.MessageOrigin != null)
 					{
-						Editor.Instance.IdeAdapter.OpenScript(message.Source.MessageOrigin.FileName, message.Source.MessageOrigin.LineNumber);
+						Editor.Instance.OpenScript(message.Source.MessageOrigin.FileName, message.Source.MessageOrigin.LineNumber);
 					}
 					else if (message.Source.Exception != null)
 					{
 						// TODO: Column?
 						let firstFrame = message.Source.Exception.StackTrace.Frames[0];
-						Editor.Instance.IdeAdapter.OpenScript(firstFrame.FileName, firstFrame.Line);
+						Editor.Instance.OpenScript(firstFrame.FileName, firstFrame.Line);
 						//message.Source.Exception.StackTrace
 					}
 				}

GlitchyEditor/src/Editor.bf

@@ -7,6 +7,9 @@ using GlitchyEditor.EditWindows;
 using GlitchyEngine;
 using GlitchyEditor.Assets;
 using GlitchyEditor.CodeEditors;
+using GlitchyEditor.Settings;
+using GlitchyEditor.Multithreading;
+using GlitchyEngine.Scripting;
 
 namespace GlitchyEditor
 {
@@ -177,5 +180,85 @@ namespace GlitchyEditor
 		{
 			_settingsWindow.Open = true;
 		}
+
+		private void OpenIdeConfigurationPopup() {
+			PopupService.Instance.OpenPopup("No IDE configured.", new (close) => {
+				close = false;
+
+				ImGui.TextUnformatted("In order to open a source file or the script project you need to configure an IDE to use.");
+
+				if (ImGui.Button("Go to settings..."))
+				{
+					ShowSettings();
+					SettingsWindow.HighlightSetting("Tools", "ide");
+					close = true;
+				}
+
+				ImGui.SameLine();
+
+				if (ImGui.Button("Cancel"))
+				{
+					close = true;
+				}
+			});
+		}
+
+		/// Wrapper for IdeAdapter.OpenScript that check whether or not an IDE Adapter is configured.
+		/// If not, a popup will be show.
+		public void OpenScript(StringView fileName, int lineNumber = 0, int columnNumber = 0)
+		{
+			if (IdeAdapter == null)
+			{
+				OpenIdeConfigurationPopup();
+			}
+			else
+			{
+				IdeAdapter.OpenScript(fileName, lineNumber, columnNumber);
+			}
+		}
+
+		/// Wrapper for IdeAdapter.OpenScript that check whether or not an IDE Adapter is configured.
+		/// If not, a popup will be show.
+		public void OpenScriptProject()
+		{
+			if (IdeAdapter == null)
+			{
+				OpenIdeConfigurationPopup();
+			}
+			else
+			{
+				IdeAdapter.OpenScriptProject();
+			}
+		}
+
+		/// Rebuilds the C# scripts.
+		public BuildScriptsBackgroundTask BuildScripts(bool reloadAfterBuild = true, bool doCleanRebuild = false)
+		{
+			ScriptEngine.SuspendAssemblyWatcher();
+
+			BuildScriptsBackgroundTask task = new .(EditorApp.Instance.Settings.ScriptSettings.DotNetExecutablePath, EditorApp.Instance.EditorLayer.CurrentProject, releaseBuild: false, doCleanRebuild){ DeleteWhenEnded = true };
+			task.ContinueWith(new (task) => {
+				ScriptEngine.ResumeAssemblyWatcher();
+
+				EditorApp.Instance.ContentManager.AssetHierarchy.ScriptProjectDirtyManager.SetClean();
+
+				if (reloadAfterBuild)
+				{
+					EditorApp.Instance.InvokeOnMainThread(new () => {
+						ScriptEngine.ReloadAssemblies(retainScriptData: true);
+						return true;
+					});
+				}
+			});
+
+			EditorApp.Instance.BackgroundTaskManager.StartBackgroundTask(task);
+
+			return task;
+		}
+
+		public void ReloadScripts()
+		{
+			ScriptEngine.ReloadAssemblies(retainScriptData: true);
+		}
 	}
 }

GlitchyEditor/src/EditorApp.bf

@@ -23,6 +23,8 @@ namespace GlitchyEditor
 
 		public new static EditorApp Instance => Application.Instance as EditorApp;
 
+		public new EditorContentManager ContentManager => _contentManager;
+
 		private append BackgroundTaskManager _backgroundTaskManager = .();
 
 		public BackgroundTaskManager BackgroundTaskManager => _backgroundTaskManager;
@@ -35,6 +37,8 @@ namespace GlitchyEditor
 
 		public Settings Settings { get; private set; } = new .() ~ delete _;
 
+		public EditorLayer EditorLayer => _editorLayer;
+		
 		public this(String[] args)
 		{
 			/*while(!Debug.IsDebuggerPresent)

GlitchyEditor/src/EditorLayer.bf

@@ -820,10 +820,28 @@ namespace GlitchyEditor
 		append ScriptInstanceSerializer _scriptSerializer = .();
 
 		/// Starts the play mode for the current scene
-		private void OnScenePlay(SceneState newSceneState)
+		private void OnScenePlay(SceneState newSceneState, bool allowRebuild = true)
 		{
 			Debug.Profiler.ProfileFunction!();
 
+			if (allowRebuild && _contentManager.AssetHierarchy.ScriptProjectDirtyManager.NeedsRebuild(EditorApp.Instance.Settings.ScriptSettings.RebuildOnPlayMode))
+			{
+				// Don't immediately reload the scripts after the build, because SetActiveScene will do that anyway.
+				var task = _editor.BuildScripts(reloadAfterBuild: false);
+
+				task.ContinueWith(new (t) => {
+					// Continuations run in worker threads, invoke play on main thread!
+					EditorApp.Instance.InvokeOnMainThread(new () => {
+						// Remember not to rebuild this time!
+						OnScenePlay(newSceneState, allowRebuild: false);
+						return true;
+					});
+				}, .RunOnFinished);
+
+				// Don't play just yet, the continuation will do that.
+				return;
+			}
+
 			Runtime.Assert(newSceneState == .Play || newSceneState == .Simulate, "newSceneState must either be Play or Simulate");
 
 			Log.EngineLogger.AssertDebug(_scriptSerializer.SerializedObjectCount == 0, "Somehow some entities are serialized.");
@@ -1520,8 +1538,20 @@ namespace GlitchyEditor
 			
 			if(ImGui.BeginMenu("Tools", true))
 			{
-				if(ImGui.MenuItem("Reload Scripts"))
+				if(ImGui.MenuItem("Build Scripts", "Ctrl+B"))
-					ScriptEngine.ReloadAssemblies(retainScriptData: true);
+					_editor.BuildScripts();
+
+				ImGui.AttachTooltip("Compiles the C# script project.");
+
+				if(ImGui.MenuItem("Clean and build Scripts", "Ctrl+Shift+B"))
+					_editor.BuildScripts(doCleanRebuild: true);
+
+				ImGui.AttachTooltip("Makes a clean rebuild of the C# script project.");
+
+				if(ImGui.MenuItem("Reload Scripts", "Ctrl+Shift+R"))
+					_editor.ReloadScripts();
+
+				ImGui.AttachTooltip("Unloads and reloads the compiled scripts.");
 
 #if GE_EDITOR_IMGUI_DEMO
 				ImGui.Checkbox("Show ImGui Demo", &_showImguiDemoWindow);
@@ -1624,6 +1654,17 @@ namespace GlitchyEditor
 						// "Save Scene"
 						SaveCurrentScene();
 					
+					return true;
+				case .B:
+					// "Compile scripts"
+					_editor.BuildScripts();
+					
+					return true;
+				case .R:
+					if (shift)
+						// "Compile scripts"
+						_editor.ReloadScripts();
+					
 					return true;
 				default:
 				}

GlitchyEditor/src/ImGui/ImGuiExtension.bf

@@ -535,6 +535,35 @@ namespace ImGui
 			ImGui.EndTooltip();
 		}
 
+		/// Provides a text input field that allows to edit the given string directly. The string will grow as needed.
+		/// Returns true if the text was changed.
+		public static bool InputText(char8* label, String str, InputTextFlags flags = .None)
+		{
+			return ImGui.InputText(label, str.CStr(), (.)str.AllocSize, flags | .CallbackResize, => StringResizeCallback, Internal.UnsafeCastToPtr(str));
+		}
+
+		private static int StringResizeCallback(InputTextCallbackData* data)
+		{
+			if (data.EventFlag != .CallbackResize)
+				return 0;
+			
+			String str = (String)Internal.UnsafeCastToObject(data.UserData);
+			
+			int newLength = data.BufTextLen;
+			
+			// PrepareBuffer increases the length and reserves room for the null terminator.
+			if (newLength > str.Length)
+				str.PrepareBuffer(newLength - str.Length);
+			else
+				str.Length = newLength;
+			
+			// The string might have been reallocated.
+			data.Buf = str.Ptr;
+			data.BufSize = (.)str.AllocSize;
+			
+			return 0;
+		}
+
 		[Comptime]
 		private static DataType GetDataType<T>()
 		{
@@ -744,6 +773,43 @@ namespace ImGui
 			}
 		}
 		
+		public static mixin PushScopedStyleColor(ImGui.Col idx, uint32 color)
+		{
+			PushStyleColor(idx, color);
+			defer:mixin PopStyleColor();
+		}
+		
+		public static mixin PushScopedStyleColor(ImGui.Col idx, Vec4 color)
+		{
+			PushStyleColor(idx, color);
+			defer:mixin PopStyleColor();
+		}
+
+		public static mixin PushScopedStyleColor(ImGui.Col idx, GlitchyEngine.Math.Color color)
+		{
+			PushStyleColor(idx, color);
+			defer:mixin PopStyleColor();
+		}
+
+		public static void PushStyleColor(ImGui.Col idx, GlitchyEngine.Math.Color color)
+		{
+#unwarn
+			uint32 bitColor = *(uint32*)(void*)&color;
+
+			ImGui.PushStyleColor(.Text, bitColor);
+		}
+		
+		public static mixin PushScopedStyleColor(ImGui.Col idx, GlitchyEngine.Math.ColorRGBA color)
+		{
+			PushStyleColor(idx, color);
+			defer:mixin PopStyleColor();
+		}
+
+		public static void PushStyleColor(ImGui.Col idx, GlitchyEngine.Math.ColorRGBA color)
+		{
+			ImGui.PushStyleColor(.Text, ((Color)color).Value);
+		}
+
 		public struct DisabledScope : IDisposable
 		{
 			public this(bool disabled = true)

GlitchyEditor/src/Multithreading/BackgroundTask.bf

@@ -17,6 +17,15 @@ abstract class BackgroundTask
 
 	internal BackgroundTaskManager _taskManager;
 
+	public delegate void Continuation(BackgroundTask);
+
+	internal append List<(TaskContinuationOptions ContinuationOptions, Continuation Continuation)> _continuations = .() ~ {
+		for (let entry in _)
+		{
+			delete entry.Continuation;
+		}
+	};
+
 	public enum RunState
 	{
 		Ready,
@@ -24,7 +33,8 @@ abstract class BackgroundTask
 		Paused,
 		Running,
 		Aborted,
-		Finished
+		Finished,
+		Failed
 	}
 	 
 	public enum RunResult
@@ -34,9 +44,11 @@ abstract class BackgroundTask
 		/// The task gives up it's runtime, because it cannot continue without user intervention through the UI.
 		Pause,
 		/// The task finished and wont run again.
-		Finished,
+		Finish,
 		/// The operation was aborted, the task will not run again.
-		Abort
+		Abort,
+		/// The task failed and wont run again.
+		Fail
 	}
 
     public RunState State { get; internal set; } = .Ready;
@@ -46,9 +58,10 @@ abstract class BackgroundTask
 	public bool Blocked => State == .Blocked;
 	public bool Running => State == .Running;
 	public bool Aborted => State == .Aborted;
+	public bool Failed => State == .Failed;
 	public bool Finished => State == .Finished;
 
-	public bool Ended => Finished || Aborted;
+	public bool Ended => Finished || Aborted || Failed;
 
 	public bool DeleteWhenEnded { get; set; }
 
@@ -70,4 +83,36 @@ abstract class BackgroundTask
 	{
 		_taskManager.AbortTask(this);
 	}
+
+	public enum TaskContinuationOptions
+	{
+		/// Same as Default
+		None = 0,
+
+		RunOnFinished = 1,
+		RunOnFailed = 2,
+		RunOnAborted = 4,
+
+		Default = RunOnFinished | RunOnFailed | RunOnAborted
+	}
+
+	/// Creates a continuation that executes when the target Task completes.
+	public void ContinueWith(Continuation ownContinuation, TaskContinuationOptions continuationOptions = .Default)
+	{
+		var continuationOptions;
+
+		if (continuationOptions == .None)
+		{
+			continuationOptions = .Default;
+		}
+
+		if (Ended)
+		{
+			ownContinuation(this);
+		}
+		else
+		{
+			_continuations.Add((continuationOptions, ownContinuation));
+		}
+	}
 }

GlitchyEditor/src/Multithreading/BackgroundTaskList.bf

@@ -9,7 +9,7 @@ class BackgroundTaskList
 {
 	BackgroundTask _sentinel = new BackgroundTask()
 	{
-		public override BackgroundTask.RunResult Run() => .Finished;
+		public override BackgroundTask.RunResult Run() => .Finish;
 		public override void OnRenderPopup() { }
 		_next = _,
 		_previous = _,

GlitchyEditor/src/Multithreading/BackgroundTaskManager.bf

@@ -59,7 +59,7 @@ class BackgroundTaskManager
 				if (_deferredStateChanges.TryGetValue(task, let desiredState))
 				{
 					// If the task already finished or aborted by itself, we don't care about the desired state, because it no longer applies.
-					if (runResult != .Finished && runResult != .Abort)
+					if (runResult != .Finish && runResult != .Abort && runResult != .Fail)
 					{
 						switch (desiredState)
 						{
@@ -75,6 +75,8 @@ class BackgroundTaskManager
 					_deferredStateChanges.Remove(task);
 				}
 
+				BackgroundTask.TaskContinuationOptions endStateFlag = .None;
+
 				switch (runResult)
 				{
 				case .Continue:
@@ -89,15 +91,27 @@ class BackgroundTaskManager
 					{
 						_waitingTasks.AddLast(task);
 					}
-				case .Finished:
+				case .Finish:
 					task.State = .Finished;
-		
+					endStateFlag = .RunOnFinished;
-					if (task.DeleteWhenEnded)
-					{
-						delete task;
-					}
 				case .Abort:
 					task.State = .Aborted;
+					endStateFlag = .RunOnAborted;
+				case .Fail:
+					task.State = .Failed;
+					endStateFlag = .RunOnFailed;
+				}
+
+				if (task.Ended)
+				{
+					// Run the appropriate continuations
+					for (let (options, continuation) in task._continuations)
+					{
+						if (options.HasFlag(endStateFlag))
+						{
+							continuation(task);
+						}
+					}
 
 					if (task.DeleteWhenEnded)
 					{

GlitchyEditor/src/Multithreading/BuildScriptsBackgroundTask.bf

@@ -0,0 +1,145 @@
+using GlitchyEngine;
+using System.Collections;
+using GlitchyEditor.CodeEditors;
+using System.IO;
+using System;
+using System.Diagnostics;
+using ImGui;
+using GlitchyEditor.Multithreading;
+using GlitchyEngine.Scripting;
+using GlitchyEditor.Settings;
+using System.Threading;
+
+namespace GlitchyEditor.Multithreading;
+
+class BuildScriptsBackgroundTask : BackgroundTask
+{
+	private bool _isAborting = false;
+
+	private Project _project;
+	private bool _releaseBuild;
+	private StringView _dotnetPath;
+	private bool _doCleanRebuild;
+
+	private String _buildLog = new .() ~ delete _;
+
+	private SpawnedProcess _process ~ delete _;
+
+	public this(StringView dotnetPath, Project project, bool releaseBuild, bool doCleanRebuild)
+	{
+		_dotnetPath = dotnetPath;
+		_project = project;
+		_releaseBuild = releaseBuild;
+		_doCleanRebuild = doCleanRebuild;
+	}
+
+	public override RunResult Run()
+	{
+		return BuildScripts();
+	}
+
+	public override void OnRenderPopup()
+	{
+		if (ImGui.Begin(!_isAborting ? "Compiling scripts..." : "Aborting compilation...", null, .NoDocking | .NoCollapse | .Modal | .NoResize | .AlwaysAutoResize))
+		{
+			if (ImGui.BeginChild("##BuildLog", .(550, ImGui.GetTextLineHeightWithSpacing() * 6), .None, .HorizontalScrollbar))
+			{
+			    ImGui.TextUnformatted(_buildLog);
+			}
+
+			if (ImGui.GetScrollY() >= ImGui.GetScrollMaxY())
+				ImGui.SetScrollHereY(1.0f);
+
+			ImGui.EndChild();
+
+			if (ImGui.Button("Cancel"))
+			{
+				_isAborting = true;
+
+				_process.Kill();
+			}
+
+			ImGui.End();
+		}
+	}
+	
+	private RunResult BuildScripts()
+	{
+		RunResult result;
+
+		Log.EngineLogger.Info($"Building Scripts ({(_releaseBuild ? "Release" : "Debug")})...");
+
+		String exeFile = scope .();
+		Environment.GetExecutableFilePath(exeFile);
+
+		String exeDirectory = scope .();
+		Path.GetDirectoryPath(exeFile, exeDirectory);
+
+		ProcessStartInfo processInfo = scope .();
+		processInfo.UseShellExecute = false;
+		processInfo.RedirectStandardOutput = true;
+		processInfo.CreateNoWindow = true;
+		processInfo.SetWorkingDirectory(_project.WorkspacePath);
+
+		processInfo.SetFileName(EditorApp.Instance.Settings.ScriptSettings.DotNetExecutablePath);
+
+		StringView target;
+
+		if (_doCleanRebuild)
+		{
+			target = "build -t:Rebuild";
+		}
+		else
+		{
+			target = "build";
+		}
+
+
+		// -sc|--self-contained... Publish the .NET runtime with your application so the runtime doesn't need to be installed on the target machine.
+		// 		-> This might be useful to build the final game
+		// -o|--ouput <OUTPUT_DIRECTORY>... might be useful for building the final game
+		processInfo.SetArguments(scope $"{target} -c {(_releaseBuild ? "Release" : "Debug")}");
+
+		_process = new SpawnedProcess();
+
+		if (_process.Start(processInfo) case .Ok)
+		{
+			FileStream outputStream = scope FileStream();
+			_process.AttachStandardOutput(outputStream);
+
+			StreamReader outputReader = scope .(outputStream);
+			
+			while (!_process.HasExited)
+			{
+				outputReader.ReadToEnd(_buildLog).IgnoreError();
+			}
+
+			_process.WaitFor(-1);
+
+			if (_isAborting)
+			{
+				Log.EngineLogger.Warning($"Build was aborted:\n{_buildLog}");
+				result = .Abort;
+			}
+			else if (_process.ExitCode == 0)
+			{
+				Log.EngineLogger.Info($"Scripts compiled successfully:\n{_buildLog}");
+				result = .Finish;
+			}
+			else
+			{
+				Log.EngineLogger.Error($"Script compilation failed:\n{_buildLog}");
+				result = .Fail;
+			}
+
+			DeleteAndNullify!(_process);
+		}
+		else
+		{
+			Log.EngineLogger.Error("Failed to execute `dotnet build`");
+			result = .Fail;
+		}
+
+		return result;
+	}
+}

GlitchyEditor/src/Multithreading/CopyBackgroundTask.bf

@@ -249,7 +249,7 @@ class CopyBackgroundTask : BackgroundTask
 			delete currentPath;
 		}
 
-		return .Finished;
+		return .Finish;
 	}
 
 	private Result<void, CopyError> CopyPath(CopyInfo copyInfo)

GlitchyEditor/src/Multithreading/DeleteBackgroundTask.bf

@@ -141,7 +141,7 @@ class DeleteBackgroundTask : BackgroundTask
 			delete currentPath;
 		}
 
-		return .Finished;
+		return .Finish;
 	}
 
 	private Result<void, DeleteError> DeletePath(StringView deletePath)

GlitchyEditor/src/Multithreading/MoveFilesBackgroundTask.bf

@@ -252,7 +252,7 @@ class MoveFilesBackgroundTask : BackgroundTask
 			delete currentPath;
 		}
 
-		return .Finished;
+		return .Finish;
 	}
 
 	private Result<void, CopyError> MovePath(CopyInfo copyInfo)

GlitchyEditor/src/Multithreading/TestDotnetBackgroundTask.bf

@@ -0,0 +1,267 @@
+using GlitchyEngine;
+using System.Collections;
+using GlitchyEditor.CodeEditors;
+using System.IO;
+using System;
+using System.Diagnostics;
+using ImGui;
+using GlitchyEditor.Multithreading;
+using GlitchyEngine.Scripting;
+using GlitchyEditor.Settings;
+
+namespace GlitchyEditor.Multithreading;
+
+class TestDotnetBackgroundTask : BackgroundTask
+{
+	private ScriptSettings _settings;
+	private Project _project;
+
+	public enum TestResult
+	{
+		None,
+		Ok,
+		Timeout,
+		FailedToExecute,
+		NoSdksFound,
+		TooOld
+	}
+
+	private TestResult _testResult;
+
+	public TestResult TestResult => _testResult;
+
+	public this(ScriptSettings settings, Project project)
+	{
+		_settings = settings;
+		_project = project;
+	}
+
+	public override RunResult Run()
+	{
+		if (QueryAvailableSdks() case .Err)
+		{
+			return .Fail;
+		}
+
+		if (CheckMinimumVersion() case .Err)
+		{
+			return .Fail;
+		}
+
+		if (_project != null)
+		{
+			CheckProjectVersion();
+		}
+
+		_testResult = .Ok;
+
+		return .Finish;
+	}
+
+	public override void OnRenderPopup()
+	{
+		if (ImGui.Begin("Testing .Net Installation...", null, .NoDocking | .NoCollapse | .Modal | .NoResize | .AlwaysAutoResize))
+		{
+			ImGui.Text("...");
+
+			ImGui.End();
+		}
+	}
+	
+	private Result<void> QueryAvailableSdks()
+	{
+		_settings.DotNetSdks.Clear();
+
+		Log.EngineLogger.Info("Listing .Net SDKs...");
+
+		String exeFile = scope .();
+		Environment.GetExecutableFilePath(exeFile);
+
+		String exeDirectory = scope .();
+		Path.GetDirectoryPath(exeFile, exeDirectory);
+
+		ProcessStartInfo processInfo = scope .();
+		processInfo.UseShellExecute = false;
+		processInfo.RedirectStandardOutput = true;
+		processInfo.CreateNoWindow = true;
+
+		processInfo.SetFileName(_settings.DotNetExecutablePath);
+		// Lists all installed sdks
+		StringView argumentList = "--list-sdks";
+		processInfo.SetArguments(argumentList);
+
+		let process = scope SpawnedProcess();
+
+		if (process.Start(processInfo) case .Ok)
+		{
+			FileStream outputStream = scope FileStream();
+			process.AttachStandardOutput(outputStream);
+
+			if (!process.WaitFor(1000))
+			{
+				Log.EngineLogger.Error($"`dotnet --list-sdks` timed out.");
+				process.Kill();
+				_testResult = .Timeout;
+				return .Err;
+			}
+
+			StreamReader sr = scope .(outputStream);
+
+			String line = scope .(256);
+			while (sr.ReadLine(line..Clear()) case .Ok)
+			{
+				Log.EngineLogger.Info($"Detecting .Net SDK version from line: {line}");
+				// A line for a normal verion looks like this:
+				// 10.0.402 [C:\Program Files\dotnet\sdk]
+				// A line for a snapshot looks like this:
+				// 9.0.100-preview.7.24407.12 [C:\Program Files\dotnet\sdk]
+				// A line for a release candidate looks like this:
+				// 11.0.100-rc.2.26504.105 [C:\Program Files\dotnet\sdk]
+
+				// We must have a number at the start so we can at least grab a major version.
+				if (!line[0].IsDigit)
+				{
+					Log.EngineLogger.Error("This line doesn't appear to show an SDK version.");
+					continue;
+				}
+
+				DotNetVersion detectedVersion = default;
+
+				int indexOfSpace = line.IndexOf(' ');
+				int indexOfDash = line.IndexOf('-');
+
+				int versionNumberEnd = line.Length;
+
+				if (indexOfDash > 0)
+					versionNumberEnd = indexOfDash;
+				else if (indexOfSpace > 0)
+					versionNumberEnd = indexOfSpace;
+
+				StringView versionString = line.Substring(0, versionNumberEnd);
+
+				List<StringView> versionSplits = scope .(versionString.Split('.'));
+
+				if (versionSplits.IsEmpty)
+				{
+					Log.EngineLogger.Error("Line doesn't contain a valid version number.");
+					continue;
+				}
+
+				if (versionSplits.Count >= 1 && int.Parse(versionSplits[0]) not case .Ok(out detectedVersion.Major))
+				{
+					Log.EngineLogger.Error($"Failed to parse \"major\" part of version ({versionSplits[0]}).");
+					continue;
+				}
+
+				if (versionSplits.Count >= 2 && int.Parse(versionSplits[1]) not case .Ok(out detectedVersion.Minor))
+				{
+					Log.EngineLogger.Error($"Failed to parse \"minor\" part of version ({versionSplits[1]}).");
+					continue;
+				}
+
+				if (versionSplits.Count >= 3 && int.Parse(versionSplits[2]) not case .Ok(out detectedVersion.Patch))
+				{
+					Log.EngineLogger.Error($"Failed to parse \"patch\" part of version ({versionSplits[2]}).");
+					continue;
+				}
+				
+				if (indexOfDash > 0)
+				{
+					StringView previewString = line.Substring(indexOfDash + 1);
+
+					int previewNumberStart = previewString.IndexOf('.') + 1;
+					int secondDot = previewString.IndexOf('.', previewNumberStart);
+
+					int previewNumber = 0;
+
+					if (previewNumberStart > 0)
+					{
+						int length = previewString.Length - previewNumberStart;
+
+						if (secondDot > 0)
+						{
+							length = secondDot - previewNumberStart;
+						}
+
+						StringView previewNumberString = previewString.Substring(previewNumberStart, length);
+
+						if (int.Parse(previewNumberString) not case .Ok(out previewNumber))
+						{
+							Log.EngineLogger.Warning("Could not determine the preview number.");
+						}
+					}
+
+					if (previewString.StartsWith("preview"))
+					{
+						detectedVersion.Type = .Preview(previewNumber);
+					}
+					else if (previewString.StartsWith("rc"))
+					{
+						detectedVersion.Type = .ReleaseCandidate(previewNumber);
+					}
+					else
+					{
+						detectedVersion.Type = .Unknown;
+						Log.EngineLogger.Warning("Could not determine the preview-type for SDK.");
+					}
+				}
+				else
+				{
+					detectedVersion.Type = .Normal;
+				}
+
+				Log.EngineLogger.Info($"Detected .Net SDK: {detectedVersion}.");
+
+				_settings.DotNetSdks.Add(detectedVersion);
+			}
+		}
+		else
+		{
+			Log.EngineLogger.Error($"Failed to execute `{_settings.DotNetExecutablePath} {argumentList}`");
+			_testResult = .FailedToExecute;
+			return .Err;
+		}
+
+		if (_settings.DotNetSdks.Count == 0)
+		{
+			_testResult = .NoSdksFound;
+			return .Err;
+		}
+
+		return .Ok;
+	}
+
+	/// Checks if one of the detected SDKs is at least the minimum required dotnet version.
+	private Result<void> CheckMinimumVersion()
+	{
+		DotNetVersion maxVersion = _settings.GetLatestInstalledDotNetVersion();
+
+		if (maxVersion < ScriptEngine.MinDotNetVersion)
+		{
+			Log.EngineLogger.Error($"The latest detected .Net SDK ({maxVersion}) is older than the required minimum Version ({ScriptEngine.MinDotNetVersion}). Please install a newer .Net SDK or configure the dotnet executable in the settings.");
+			_testResult = .TooOld;
+			return .Err;
+		}
+		else
+		{
+			Log.EngineLogger.Info($"Latest detected .Net SDK: {maxVersion}.");
+
+			return .Ok;
+		}
+	}
+
+	/// Checks if one of the detected SDKs is at least the minimum required dotnet version for the current project.
+	void CheckProjectVersion()
+	{
+		/*DotNetVersion maxVersion = GetMaxVersion();
+
+		if (maxVersion < ScriptEngine.MinDotNetVersion)
+		{
+			Log.EngineLogger.Error($"The latest detected .Net SDK ({maxVersion}) is older than the required minimum Version ({ScriptEngine.MinDotNetVersion}). Please install a newer .Net SDK or configure the dotnet executable in the settings.");
+		}
+		else
+		{
+			Log.EngineLogger.Info($"Latest detected .Net SDK: {maxVersion}.");
+		}*/
+	}
+}

GlitchyEditor/src/Settings/DetectIDEsBackgroundTask.bf

@@ -51,7 +51,7 @@ class DetectIDEsBackgroundTask : BackgroundTask
 		_stage = .SearchRider;
 		FindRider();
 
-		return .Finished;
+		return .Finish;
 	}
 
 	public override void OnRenderPopup()

GlitchyEditor/src/Settings/Settings.bf

@@ -6,6 +6,9 @@ using Bon;
 using GlitchyEngine;
 using System.Threading;
 using System.Linq;
+using GlitchyEngine.Scripting;
+using GlitchyEditor.Multithreading;
+using GlitchyEngine.Math;
 
 using static GlitchyEditor.SettingsWindow;
 
@@ -50,6 +53,20 @@ struct SettingAttribute : Attribute
 	}
 }
 
+/// Fields with this Attribute will be exposed as settings.
+[AttributeUsage(AttributeTargets.StaticField, .ReflectAttribute)]
+struct SettingValueAttribute : Attribute
+{
+	public String Name;
+	public String Tooltip;
+
+	public this(String name, String tooltip = "")
+	{
+		Name = name;
+		Tooltip = tooltip;
+	}
+}
+
 /// Fields with this Attribute will be exposed as settings.
 [AttributeUsage(.Method, .ReflectAttribute | .AlwaysIncludeTarget)]
 struct CustomSettingRendererAttribute : Attribute
@@ -236,9 +253,40 @@ class IdeInstallation
 	// This would however be quite complicated to implement well, when looking at how different Visual Studio and Rider already are.
 }
 
+[Reflect]
+enum RebuildOnPlay
+{
+	[SettingValue("Off", "The scripts will not be rebuild when entering play mode.")]
+	Off,
+	[SettingValue("Always", "The scripts will always be rebuild when entering play mode.")]
+	Always,
+	[SettingValue("When any Asset changed", """
+		The scripts will automatically be rebuild when any asset in asset-directory changed, even if it is not necessary for the build process.
+		This can be helpful if you include files in your build-process that are not detected by the heuristic up to date check.
+		""")]
+	WhenAnyAssetsChanged,
+	[SettingValue("When the fancy dancy heuristic check says so.", """
+		A highly sophisticated heuristic will determine if a rebuild is required.
+		""")]
+	UseFastUpToDateCheck
+}
+
 [Reflect]
 class ScriptSettings
 {
+	private List<DotNetVersion> _dotNetSdks = new .() ~ delete _;
+	public List<DotNetVersion> DotNetSdks => _dotNetSdks;
+	
+	[BonInclude]
+	private String _dotnetExePath = new .("dotnet") ~ delete _;
+	private TestDotnetBackgroundTask.TestResult _dotnetTestResult = .None;
+
+	public StringView DotNetExecutablePath
+	{
+		get => _dotnetExePath;
+		set => String.NewOrSet!(_dotnetExePath, value);
+	}
+
 	[BonInclude]
 	private List<IdeInstallation> _ideInstallations = new .() ~ DeleteContainerAndItems!(_);
 
@@ -254,6 +302,12 @@ class ScriptSettings
 	private bool _lookedForVs = false;
 	private bool _lookedForRider = false;
 	
+	[Setting("Tools", "Rebuild scripts on play mode", "Configures if and how the scripts will be rebuilt every time the play mode is entered."), BonInclude]
+	public RebuildOnPlay RebuildOnPlayMode = .UseFastUpToDateCheck;
+
+	[Setting("Tools", "Automatically rebuild changed scripts", "If active, the scripts will be rebuilt every time the user presses play."), BonInclude]
+	public bool AutoRebuildOnChange = true;
+
 	/// Enters the lock and gets the list of Ide installations.
 	public Monitor.MonitorLockInstance EnterAndGetIdeInstallations(out List<IdeInstallation> ideInstallations)
 	{
@@ -275,6 +329,18 @@ class ScriptSettings
 				}
 			}
 		}
+
+		if (_dotNetSdks.Count == 0)
+		{
+			TestDotnetInstallation();
+		}
+	}
+
+	private TestDotnetBackgroundTask TestDotnetInstallation()
+	{
+		TestDotnetBackgroundTask task = new TestDotnetBackgroundTask(this, null){ DeleteWhenEnded = true };
+		EditorApp.Instance.BackgroundTaskManager.StartBackgroundTask(task);
+		return task;
 	}
 
 	[CustomSettingRenderer("Tools")]
@@ -282,7 +348,16 @@ class ScriptSettings
 	{
 		bool settingsChanged = false;
 
-		ImGui.Text("IDE:");
+		ImGui.Text("IDE");
+		
+		ImGui.SameLine(ImGui.GetContentRegionAvail().x - ImGui.CalcTextSize("Detect IDEs...").x - 2 * ImGui.GetStyle().FramePadding.x);
+
+		if (ImGui.Button("Detect IDEs..."))
+		{
+			EditorApp.Instance.BackgroundTaskManager.StartBackgroundTask(new DetectIDEsBackgroundTask(this){ DeleteWhenEnded = true });
+		}
+
+		ImGui.TableNextColumn();
 		
 		if (ImGui.BeginCombo("##ide", ActiveIde?.Name.ToScopeCStr!()))
 		{
@@ -327,13 +402,71 @@ class ScriptSettings
 			ImGui.EndCombo();
 		}
 
-		if (ImGui.Button("Detect IDEs..."))
+		ImGui.TableNextRow();
+		ImGui.TableNextColumn();
+		
+		ImGui.Text("DotNet Executable Path");
+		
+		ImGui.SameLine(ImGui.GetContentRegionAvail().x - ImGui.CalcTextSize("Test").x - 2 * ImGui.GetStyle().FramePadding.x);
+
+		if (ImGui.Button("Test"))
 		{
-			EditorApp.Instance.BackgroundTaskManager.StartBackgroundTask(new DetectIDEsBackgroundTask(this){ DeleteWhenEnded = true });
+			_dotnetTestResult = .None;
+			TestDotnetInstallation().ContinueWith(new (task) => {
+				_dotnetTestResult = ((TestDotnetBackgroundTask)task).TestResult;
+			});
+		}
+
+		ImGui.TableNextColumn();
+
+		if (ImGui.InputText("##dotnetPath", _dotnetExePath))
+		{
+			settingsChanged = true;
+		}
+
+		switch (_dotnetTestResult)
+		{
+		case .None:
+			// Nothing to do.
+		case .Ok:
+			ImGui.PushStyleColor(.Text, ColorRGBA.Green);
+			ImGui.TextUnformatted(scope $"Dotnet works and found latest version: {GetLatestInstalledDotNetVersion()}");
+			ImGui.PopStyleColor();
+		case .Timeout:
+			ImGui.PushStyleColor(.Text, ColorRGBA.Red);
+			ImGui.TextUnformatted(scope $"Dotnet timed out.");
+			ImGui.PopStyleColor();
+		case .FailedToExecute:
+			ImGui.PushStyleColor(.Text, ColorRGBA.Red);
+			ImGui.TextUnformatted(scope $"Failed to execute dotnet.");
+			ImGui.PopStyleColor();
+		case .NoSdksFound:
+			ImGui.PushStyleColor(.Text, ColorRGBA.Red);
+			ImGui.TextUnformatted(scope $"Dotnet works but no SDK found.");
+			ImGui.PopStyleColor();
+		case .TooOld:
+			ImGui.PushStyleColor(.Text, ColorRGBA.Red);
+			ImGui.TextUnformatted(scope $"Dotnet works but latest installed version {GetLatestInstalledDotNetVersion()} is too old.");
+			ImGui.PopStyleColor();
 		}
 
 		return settingsChanged;
 	}
+
+	public DotNetVersion GetLatestInstalledDotNetVersion()
+	{
+		DotNetVersion maxVersion = .(-1, -1, -1, .Unknown);
+
+		for (DotNetVersion version in _dotNetSdks)
+		{
+			if (version > maxVersion)
+			{
+				maxVersion = version;
+			}
+		}
+
+		return maxVersion;
+	}
 }
 
 [Reflect]

GlitchyEditor/src/Settings/SettingsWindow.bf

@@ -106,8 +106,6 @@ namespace GlitchyEditor
 
 		void ScanForSettings(Object container)
 		{
-			Log.EngineLogger.Info($"Visiting type: {container.GetType().GetName(.. scope .())}");
-
 			Type type = container.GetType();
 
 			for (var field in type.GetFields())
@@ -138,8 +136,6 @@ namespace GlitchyEditor
 
 			for (let method in type.GetMethods(.Instance | .Static | .Public | .NonPublic))
 			{
-				Log.EngineLogger.Info($"Visiting method: {method.Name}");
-
 				Result<CustomSettingRendererAttribute> rendererResult = method.GetCustomAttribute<CustomSettingRendererAttribute>();
 				
 				if (rendererResult case .Ok(let rendererInfo))
@@ -367,12 +363,23 @@ namespace GlitchyEditor
 						// TODO: handle multiple Flags (as a separate enum type handler though!)
 						
 						StringView currentName = "";
+						StringView currentTooltip = "";
 
 						for (let (name, value) in Enum.GetEnumerator(fieldInfo.FieldType))
 						{
 							if (value == underlyingValue)
 							{
-								currentName = name;
+								if (fieldInfo.FieldType.GetField(@name.Index) case .Ok(FieldInfo info) &&
+									info.GetCustomAttribute<SettingValueAttribute>() case .Ok(SettingValueAttribute settingValue))
+								{
+									currentName = settingValue.Name;
+									currentTooltip = settingValue.Tooltip;
+								}
+								else
+								{
+									currentName = name;
+								}
+
 								break;
 							}
 						}
@@ -383,7 +390,17 @@ namespace GlitchyEditor
 							{
 								bool isSelected = (name == currentName);
 
-								if (ImGui.Selectable(name.ToScopeCStr!(), isSelected))
+								StringView valueName = name;
+								StringView valueTooltip = "";
+								
+								if (fieldInfo.FieldType.GetField(@name.Index) case .Ok(FieldInfo info) &&
+									info.GetCustomAttribute<SettingValueAttribute>() case .Ok(SettingValueAttribute settingValue))
+								{
+									valueName = settingValue.Name;
+									valueTooltip = settingValue.Tooltip;
+								}
+
+								if (ImGui.Selectable(valueName.ToScopeCStr!(), isSelected))
 								{
 									// Set value in field reference
 									switch (fieldInfo.FieldType.Size)
@@ -397,10 +414,20 @@ namespace GlitchyEditor
 									if (!isSelected)
 										_settingsChanged = true;
 								}
+
+								if (!valueTooltip.IsEmpty)
+								{
+									ImGui.AttachTooltip(valueTooltip);
+								}
 							}
 
 							ImGui.EndCombo();
 						}
+
+						if (!currentTooltip.IsEmpty)
+						{
+							ImGui.AttachTooltip(currentTooltip);
+						}
 					}
 
 					if (setting.Name == _SettingToHighlight)
@@ -420,6 +447,9 @@ namespace GlitchyEditor
 
 				for (let methodBinding in category._methodBindings)
 				{
+					ImGui.TableNextRow();
+					ImGui.TableNextColumn();
+
 					if (methodBinding.Method.Invoke(methodBinding.Method.IsStatic ? null : methodBinding.SettingsObject, category) case .Ok(var returnValue))
 					{
 						_settingsChanged |= returnValue.Get<bool>();

GlitchyEngine.Benchmark/src/BasicBenchmark.bf

@@ -17,7 +17,7 @@ class BasicBenchmark
 		Console.WriteLine(Directory.GetCurrentDirectory(.. scope .()));
 		ScriptEngine.Init();
 		
-		ScriptEngine.SetAppAssemblyPath(@"..\GlitchyEngine.Test\content\TestProject\.cache\bin\TestProject.dll");
+		ScriptEngine.SetAppAssemblyPath(@"..\GlitchyEngine.Test\content\TestProject\.cache\bin\TestProject.dll", false);
 	}
 
 	protected static void Shutdown()

GlitchyEngine.Test/content/TestProject/Assets/Scenes/TestScene.scene

@@ -0,0 +1,179 @@
+{
+	Version = 1,
+	Entities = [
+		{
+			Id = 8893155135649576304,
+			NameComponent = {
+				Name = "Camera"
+			},
+			TransformComponent = {
+				Position = {
+					X = 0,
+					Y = 2,
+					Z = -5
+				},
+				Rotation = {
+					X = 0,
+					Y = 0.21643962,
+					Z = 0,
+					W = 0.976296
+				},
+				Scale = {
+					X = 1,
+					Y = 1,
+					Z = 1
+				},
+				EditorEulerRotation = {
+					X = 0,
+					Y = 0.43633237,
+					Z = 0
+				}
+			},
+			CameraComponent = {
+				Primary = true,
+				ProjectionType = .InfinitePerspective,
+				PerspectiveFovY = 1.3089969,
+				PerspectiveNearPlane = 0.1,
+				PerspectiveFarPlane = 10000,
+				OrthographicHeight = 10,
+				OrthographicNearPlane = 0,
+				OrthographicFarPlane = 10,
+				AspectRatio = 1.9840086,
+				FixedAspectRatio = false
+			},
+			Editor = {
+				Flags = .Default
+			}
+		},
+		{
+			Id = 14812165297099037146,
+			NameComponent = {
+				Name = "Light"
+			},
+			TransformComponent = {
+				Position = {
+					X = -3,
+					Y = 4,
+					Z = -1.5
+				},
+				Rotation = {
+					X = 0.23977584,
+					Y = 0.6143275,
+					Z = 0.031567074,
+					W = 0.7510744
+				},
+				Scale = {
+					X = 1,
+					Y = 1,
+					Z = 1
+				},
+				EditorEulerRotation = {
+					X = 0.3490659,
+					Y = 1.3089968,
+					Z = 0.34906587
+				}
+			},
+			LightComponent = {
+				LightType = .Directional,
+				Illuminance = 10,
+				Color = {
+					R = 1,
+					G = 0.9500002,
+					B = 0.8
+				}
+			},
+			Editor = {
+				Flags = .Default
+			}
+		},
+		{
+			Id = 4185051642788402424,
+			NameComponent = {
+				Name = "Entity"
+			},
+			TransformComponent = {
+				Position = {
+					X = 0,
+					Y = 0,
+					Z = 0
+				},
+				Rotation = {
+					X = 0,
+					Y = 0,
+					Z = 0,
+					W = 1
+				},
+				Scale = {
+					X = 1,
+					Y = 1,
+					Z = 1
+				},
+				EditorEulerRotation = {
+					X = 0,
+					Y = 0,
+					Z = 0
+				}
+			},
+			ScriptComponent = {
+				ScriptClass = "TestProject.Assets.Scripts.AdvancedSerializationTest",
+				Fields = (TestProject.Assets.Scripts.AdvancedSerializationTest){
+					ID = 4185051642788402424,
+					LeTuple.Item1 = (int32)101,
+					LeTuple.Item2.X = (float)49,
+					LeTuple.Item2.Y = (float)31,
+					LeTuple.Item3 = &16946239429800937368,
+					LeListDeTuple = &13357518334354818316,
+					GenericStructField.MyField = (float)-56,
+					GenericClassField = &6770493598825812026
+				}
+			},
+			Editor = {
+				Flags = .Default
+			}
+		}
+	],
+	ReferencedObjects = [
+		(TestProject.BClass){
+			ID = 16946239429800937368,
+			F = (float)131
+		},
+		(System.Collections.Generic.List`1[System.ValueTuple`3[System.Int32,GlitchyEngine.Math.float2,TestProject.BClass]]){
+			ID = 13357518334354818316,
+			Count = (int32)4,
+			0.Item1 = (int32)64,
+			0.Item2.X = (float)-81,
+			0.Item2.Y = (float)-118,
+			0.Item3 = &14597969159961685574,
+			1.Item1 = (int32)0,
+			1.Item2.X = (float)0,
+			1.Item2.Y = (float)0,
+			1.Item3 = &0,
+			2.Item1 = (int32)73,
+			2.Item2.X = (float)165,
+			2.Item2.Y = (float)115,
+			2.Item3 = &15752578204681304901,
+			3.Item1 = (int32)0,
+			3.Item2.X = (float)0,
+			3.Item2.Y = (float)0,
+			3.Item3 = &0
+		},
+		(TestProject.BClass){
+			ID = 14597969159961685574,
+			F = (float)23
+		},
+		(TestProject.BClass){
+			ID = 15752578204681304901,
+			F = (float)159
+		},
+		(TestProject.Assets.Scripts.SimpleGenericClass`1[System.Double]){
+			ID = 6770493598825812026,
+			MyField = (double)0.9599999785423279
+		}
+	],
+	StaticFields = [
+		(TestProject.SerializationTest){
+			ID = 1460275328679732402,
+			StaticNumber = (int32)0
+		}
+	]
+}

GlitchyEngine.Test/content/TestProject/Assets/Scenes/TestScene.scene.ass

@@ -0,0 +1,11 @@
+{
+	AssetLoader = null,
+	Config = null,
+	Importer = null,
+	ImporterConfig = null,
+	Processor = null,
+	ProcessorConfig = null,
+	Exporter = null,
+	ExporterConfig = null,
+	AssetHandle = 4008662279183989969
+}

GlitchyEngine.Test/content/TestProject/Assets/Scripts/AdvancedSerializationTest.cs

@@ -0,0 +1,28 @@
+using GlitchyEngine;
+using GlitchyEngine.Math;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace TestProject.Assets.Scripts;
+
+public class SimpleGenericClass<T>
+{
+    public T MyField;
+}
+
+public struct SimpleGenericStruct<T>
+{
+    public T MyField;
+}
+
+public class AdvancedSerializationTest : Entity
+{
+    public (int Prim, float2 Struc, BClass Ref) LeTuple;
+
+    public List<(int Prim, float2 Struc, BClass Ref)> LeListDeTuple;
+
+    public SimpleGenericStruct<float> GenericStructField = new SimpleGenericStruct<float>();
+
+    public SimpleGenericClass<double> GenericClassField = new SimpleGenericClass<double>();
+}

GlitchyEngine.Test/content/TestProject/Assets/Scripts/AdvancedSerializationTest.cs.ass

@@ -0,0 +1,11 @@
+{
+	AssetLoader = null,
+	Config = null,
+	Importer = null,
+	ImporterConfig = null,
+	Processor = null,
+	ProcessorConfig = null,
+	Exporter = null,
+	ExporterConfig = null,
+	AssetHandle = 16179505410974622627
+}

GlitchyEngine.Test/content/TestProject/Assets/Scripts/SerializationTest.cs.ass

@@ -0,0 +1,11 @@
+{
+	AssetLoader = null,
+	Config = null,
+	Importer = null,
+	ImporterConfig = null,
+	Processor = null,
+	ProcessorConfig = null,
+	Exporter = null,
+	ExporterConfig = null,
+	AssetHandle = 13036819508142753970
+}

GlitchyEngine.Test/content/TestProject/Assets/Scripts/TestScript.cs.ass

@@ -0,0 +1,11 @@
+{
+	AssetLoader = null,
+	Config = null,
+	Importer = null,
+	ImporterConfig = null,
+	Processor = null,
+	ProcessorConfig = null,
+	Exporter = null,
+	ExporterConfig = null,
+	AssetHandle = 2840305762073418465
+}

GlitchyEngine.Test/content/TestProject/TestProject.csproj

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <!-- General configuration -->
     <AssemblyTitle>TestProject</AssemblyTitle>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <OutputType>Library</OutputType>
     <Nullable>enable</Nullable>
     <!-- Define the output path -->

GlitchyEngine.Test/content/TestProject/TestProject.slnx

@@ -1,4 +1,7 @@
 <Solution>
   <Project Path="TestProject.csproj"/>
   <Project Path="D:\Development\Projects\Beef\GlitchyEngine\ScriptCore\ScriptCore.csproj"/>
+  <Project Path="D:\Development\Projects\Beef\GlitchyEngine\ScriptCoreGenerator\ScriptCoreGenerator.csproj"/>
+  <Project Path="D:\Development\Projects\Beef\GlitchyEngine\ScriptCoreGenerator.Test\ScriptCoreGenerator.Test.csproj"/>
+  <Project Path="D:\Development\Projects\Beef\GlitchyEngine\vendor\ImGui.NET\src\ImGui.NET\ImGui.NET.csproj"/>
 </Solution>

GlitchyEngine/src/Scripting/Decimal.bf

@@ -1,11 +1,28 @@
+// Based on the Decimal implementation from the Mono Runtime: https://github.com/mono/mono/blob/0f53e9e151d92944cacab3e24ac359410c606df6/mcs/class/referencesource/mscorlib/system/decimal.cs
+// Originally licensed under the MIT license.
+
 using System;
-using Bon.Integrated;
 using Bon;
+using Bon.Integrated;
+
 namespace GlitchyEngine.Scripting;
 
-/// A struct providing access to the components of a mono decimal.
+/// A struct compatible with the Decimal type form the .Net Runtime.
-struct MonoDecimal
+struct Decimal
 {
+    // Sign mask for the flags field. A value of zero in this bit indicates a
+    // positive Decimal value, and a value of one in this bit indicates a
+    // negative Decimal value.
+    //
+    // Look at OleAut's DECIMAL_NEG constant to check for negative values
+    // in native code.
+    private const uint32 SignMask = 0x80000000u;
+	
+	// Scale mask for the flags field. This byte in the flags field contains
+	// the power of 10 to divide the Decimal value by. The scale byte must
+	// contain a value between 0 and 28 inclusive.
+	private const uint32 ScaleMask = 0x00FF0000u;
+
 	[Bitfield<uint16>(.Private, .BitsAt(16, 0), "_dontUse", .Read)]
 	[Bitfield<uint8>(.Public, .BitsAt(8, 16), "Exponent")]
 	[Bitfield<uint8>(.Private, .BitsAt(7, 24), "_dontUse2")]
@@ -20,15 +37,48 @@ struct MonoDecimal
 
 	static this
 	{
-		gBonEnv.typeHandlers.Add(typeof(MonoDecimal),
+		gBonEnv.typeHandlers.Add(typeof(Decimal),
 			    ((.)new => AssetSerialize, new => AssetDeserialize));
 	}
 
+	public this()
+	{
+		_high = 0;
+		_low = 0;
+		_mid = 0;
+		_flags = 0;
+	}
+	
+	public this(int value)
+	{
+		var value;
+	    if (value >= 0)
+	    {
+	        _flags = 0;
+	    }
+	    else
+	    {
+	        _flags = SignMask;
+	        value = -value;
+	    }
+	    _low = (uint32)value;
+	    _mid = (uint32)(value >> 32);
+	    _high = 0;
+	}
+
+    public this(uint value)
+    {
+        _flags = 0;
+	    _low = (uint32)value;
+	    _mid = (uint32)(value >> 32);
+        _high = 0;
+    }
+
 	static void AssetSerialize(BonWriter writer, ValueView value, BonEnvironment environment, SerializeValueState state)
 	{
 		Log.EngineLogger.Assert(value.type == typeof(Self));
 
-		MonoDecimal decimal = value.Get<MonoDecimal>();
+		Decimal decimal = value.Get<Decimal>();
 
 		decimal.ToString(writer.outStr);
 	}
@@ -86,11 +136,11 @@ struct MonoDecimal
 		strBuffer.Append('m');
 	}
 
-	public static Result<MonoDecimal> Parse(StringView strBuffer)
+	public static Result<Decimal> Parse(StringView strBuffer)
 	{
 		var strBuffer;
 
-		MonoDecimal result = .();
+		Decimal result = .();
 
 		if (strBuffer.StartsWith('-'))
 		{

GlitchyEngine/src/Scripting/DotNetVersion.bf

@@ -0,0 +1,87 @@
+using System;
+namespace GlitchyEngine.Scripting;
+
+enum DotNetVersionType
+{
+	case Normal;
+	case Preview(int Number);
+	case ReleaseCandidate(int Number);
+	case Unknown;
+
+	public int GetSortingOrder()
+	{
+		switch (this)
+		{
+		case .Normal:
+			return 3;
+		case .ReleaseCandidate:
+			return 2;
+		case .Preview:
+			return 1;
+		case .Unknown:
+			return 0;
+		}
+	}
+}
+
+struct DotNetVersion
+{
+	public int Major;
+	public int Minor;
+	public int Patch;
+
+	public DotNetVersionType Type;
+
+	public this()
+	{
+		this = default;
+	}
+
+	public this(int major, int minor, int patch, DotNetVersionType type)
+	{
+		Major = major;
+		Minor = minor;
+		Patch = patch;
+		Type = type;
+	}
+
+	public override void ToString(String outBuffer)
+	{
+		outBuffer.AppendF($"{Major}.{Minor}.{Patch}");
+
+		switch (Type)
+		{
+		case .Normal:
+			// Nothing to do.
+		case .Preview(int Number):
+			outBuffer.AppendF($" (Preview {Number})");
+		case .ReleaseCandidate(int Number):
+			outBuffer.AppendF($" (Release Candidate {Number})");
+		case .Unknown:
+			outBuffer.Append(" (Unknown release type)");
+		}
+	}
+
+	public static int operator <=>(DotNetVersion lhs, DotNetVersion rhs)
+	{
+		if (lhs.Major != rhs.Major)
+		    if (lhs.Major > rhs.Major)
+		        return 1;
+		    else
+		        return -1;
+
+		if (lhs.Minor != rhs.Minor)
+		    if (lhs.Minor > rhs.Minor)
+		        return 1;
+		    else
+		        return -1;
+
+		if (lhs.Patch != rhs.Patch)
+		    if (lhs.Patch > rhs.Patch)
+		        return 1;
+		    else
+		        return -1;
+
+		return lhs.Type.GetSortingOrder() <=> rhs.Type.GetSortingOrder();
+	}
+}

GlitchyEngine/src/Scripting/EntityEditorWrapper.bf

@@ -1,5 +1,4 @@
 using System;
-using Mono;
 using GlitchyEngine.Core;
 using System.Diagnostics;
 

GlitchyEngine/src/Scripting/EntitySerializerWrapper.bf

@@ -48,17 +48,6 @@ class EntitySerializerWrapper : NewScriptClass
 		_createSerializationContextMethod(serializerPtr);
 	}
 	
-	/*public void ClearSerializationContext(ScriptInstanceSerializer serializer)
-	{
-		void* serializerPtr = Internal.UnsafeCastToPtr(serializer);
-
-		MonoException* exception = null;
-		_clearSerializationContextMethod(serializerPtr, &exception);
-
-		if (exception != null)
-			ScriptEngine.[Friend]HandleMonoException(exception, null);
-	}*/
-
 	public void DestroySerializationContext(ScriptInstanceSerializer serializer)
 	{
 		void* serializerPtr = Internal.UnsafeCastToPtr(serializer);

GlitchyEngine/src/Scripting/ScriptEngine.bf

@@ -89,6 +89,9 @@ static class ScriptEngine
 	// This would probably require a separate small project that just handles the script-engine interface.
 	public const String ScriptCorePath = "Resources/Scripts/ScriptCore.dll";
 
+	/// The minimum supported .Net Version.
+	public const DotNetVersion MinDotNetVersion = .(10, 0, 0, .Normal);
+
 	private static Scene s_Context ~ _?.ReleaseRef();
 
 	private static EngineClasses _classes = new .() ~ delete _;
@@ -186,7 +189,6 @@ static class ScriptEngine
 	public static void Init()
 	{
 		InitRuntime();
-		//InitMono();
 
 		LoadScriptAssemblies();
 	}
@@ -210,6 +212,22 @@ static class ScriptEngine
 	}	
 
 	static bool _requestingReload = false;
+	static bool _assemblyWatcherSuspended = false;
+
+	public static void SuspendAssemblyWatcher()
+	{
+		Log.EngineLogger.Trace("Suspending assembly watching");
+
+		_assemblyWatcherSuspended = true;
+		_userAssemblyWatcher?.StopRaisingEvents();
+	}
+
+	public static void ResumeAssemblyWatcher()
+	{
+		Log.EngineLogger.Trace("Resuming assembly watching");
+		_assemblyWatcherSuspended = false;
+		_userAssemblyWatcher?.StartRaisingEvents();
+	}
 
 	static void InitAssemblyWatcher()
 	{
@@ -242,7 +260,8 @@ static class ScriptEngine
 					ReloadAssemblies(retainScriptData: true);
 					
 					_requestingReload = false;
-					_userAssemblyWatcher.StartRaisingEvents();
+					if (_assemblyWatcherSuspended)
+						_userAssemblyWatcher.StartRaisingEvents();
 
 					return true;
 				});
@@ -250,7 +269,8 @@ static class ScriptEngine
 			});
 		}
 
-		_userAssemblyWatcher.StartRaisingEvents();
+		if (_assemblyWatcherSuspended)
+			_userAssemblyWatcher.StartRaisingEvents();
 	}
 
 	static void LoadScriptAssemblies()
@@ -354,8 +374,6 @@ static class ScriptEngine
 		if (script.Instance != null)
 			script.Instance = null;
 
-		script.ScriptClassName = null;
-
 		DestroyInstance(entityId);
 	}
 
@@ -435,26 +453,20 @@ static class ScriptEngine
 
 		LoadScriptAssemblies();
 
-		{
-			Debug.Profiler.ProfileScope!("Initialize Instances");
-			
-			// We need to create a new instance for every entity
-			for (let (id, scriptInstance) in _entityScriptInstances)
-			{
-				if (Context.GetEntityByID(id) case .Ok(let entity))
-				{
-					ScriptComponent* script = entity.GetComponent<ScriptComponent>();
-					InitializeInstance(entity, script);
-				}
-				else
-				{
-					Log.EngineLogger.AssertDebug(false, "Entities script was just serialized but the entity doesn't exist anymore.");
-				}
-			}
-		}
 		
 		if (retainScriptData)
 		{
+			if (Context != null)
+			{
+				Debug.Profiler.ProfileScope!("Initialize Instances");
+	
+				// We need to create a new instance for every entity
+				for (let (ecsEntity, scriptComponent) in Context.GetEntities<ScriptComponent>())
+				{
+					InitializeInstance(Entity(ecsEntity, Context), scriptComponent);
+				}
+			}
+
 			contextSerializer.DeserializeScriptInstances();
 		}
 

GlitchyEngine/src/Scripting/ScriptGlue.bf

@@ -59,6 +59,12 @@ struct RegisterCallAttribute : Attribute
 {
 	public bool EngineResultAsBool { get; set mut; }
 	public bool IsExtension { get; set mut; }
+	/**
+	 * If true, marks the method as guaranteed short running.
+	 * A GuaranteedShortRunning function should have a VERY short runtime (< 1μs), must NEVER block, and NEVER call back into managed code!
+	 * This allows the script glue infrastructure to apply some optimizations (i.e. SuppressGCTransition in C#)
+	 */
+	public bool GuaranteedShortRunning {get; set mut; }
 }
 
 struct TypeTranslationTemplate
@@ -147,6 +153,7 @@ struct EngineFunctionsGeneratorAttribute : Attribute, IComptimeTypeApply
 				{{
 					"name": "{method.Name}",
 					"return_type": "{GetTypeInfo(method.ReturnType, registerCallAttribute)}",
+					"guaranteed_short_running": {registerCallAttribute.GuaranteedShortRunning ? "true" : "false"},
 					"parameters": [{parameters}
 					]
 				}},
@@ -337,7 +344,7 @@ static class ScriptGlue
 			});
 	}
 
-	/// Gets the entity with the given id. Throws a mono exception, if the entity doesn't exist.
+	/// Gets the entity with the given id. Returns an .Err if it doesn't exist.
 	static Result<Entity> GetEntitySafe(UUID entityId)
 	{
 		if (ScriptEngine.Context.GetEntityByID(entityId) case .Ok(let entity))
@@ -453,7 +460,7 @@ static class ScriptGlue
 		}
 	}
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static StringView GetLastExceptionMessage()
 	{
 		return _lastExceptionMessage;
@@ -509,32 +516,32 @@ static class ScriptGlue
 
 #region Input
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static bool Input_IsKeyPressed(Key key) => Input.IsKeyPressed(key);
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static bool Input_IsKeyReleased(Key key) => Input.IsKeyReleased(key);
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static bool Input_IsKeyToggled(Key key) => Input.IsKeyToggled(key);
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static bool Input_IsKeyPressing(Key key) => Input.IsKeyPressing(key);
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static bool Input_IsKeyReleasing(Key key) => Input.IsKeyReleasing(key);
 
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static bool Input_IsMouseButtonPressed(MouseButton mouseButton) => Input.IsMouseButtonPressed(mouseButton);
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static bool Input_IsMouseButtonReleased(MouseButton mouseButton) => Input.IsMouseButtonReleased(mouseButton);
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static bool Input_IsMouseButtonPressing(MouseButton mouseButton) => Input.IsMouseButtonPressing(mouseButton);
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static bool Input_IsMouseButtonReleasing(MouseButton mouseButton) => Input.IsMouseButtonReleasing(mouseButton);
 
 #endregion Input
@@ -618,7 +625,6 @@ static class ScriptGlue
 			return .ArgumentError;
 		}
 
-		//return scriptComponent.Instance.MonoInstance;
 		return .Ok;
 	}
 	
@@ -632,7 +638,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
     static StringView Entity_GetName(UUID entityId)
 	{
 		Result<Entity> foundEntity = ScriptEngine.Context.GetEntityByID(entityId);
@@ -675,7 +681,7 @@ static class ScriptGlue
 
 #region TransformComponent
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult Transform_GetParent(UUID entityId, out UUID parentId)
 	{
 		parentId = .Zero;
@@ -702,7 +708,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult Transform_GetTranslation(UUID entityId, out float3 translation)
 	{
 		translation = ?;
@@ -727,7 +733,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult Transform_GetWorldTranslation(UUID entityId, out float3 translationWorld)
 	{
 		translationWorld = ?;
@@ -757,7 +763,7 @@ static class ScriptGlue
 		// TODO: we need to handle repositioning of colliders that are children of the entity with rigidbody...
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult Transform_TransformPointToWorld(UUID entityId, float3 point, out float3 pointWorld)
 	{
 		pointWorld = ?;
@@ -769,7 +775,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult Transform_GetRotation(UUID entityId, out Quaternion rotation)
 	{
 		rotation = ?;
@@ -794,7 +800,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult Transform_GetRotationEuler(UUID entityId, out float3 rotationEuler)
 	{
 		rotationEuler = ?;
@@ -831,7 +837,7 @@ static class ScriptGlue
 		}
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult Transform_GetRotationAxisAngle(UUID entityId, out AxisAngle rotationAxisAngle)
 	{
 		rotationAxisAngle = ?;
@@ -855,7 +861,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult Transform_GetScale(UUID entityId, out float3 scale)
 	{
 		scale = ?;
@@ -865,7 +871,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult Transform_SetScale(UUID entityId, float3 scale)
 	{
 		Entity entity = GetEntityOrReturnError!(entityId);
@@ -883,14 +889,14 @@ static class ScriptGlue
 
 #region Rigidbody2
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Rigidbody2D_ApplyForce(UUID entityId, in float2 force, in float2 point, bool wakeUp)
 	{
 		Rigidbody2DComponent* rigidBody = GetComponentSafe<Rigidbody2DComponent>(entityId);
 		Box2D.Body.ApplyForce(rigidBody.[Friend]RuntimeBody, force, point, wakeUp);
 	}
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Rigidbody2D_ApplyForceToCenter(UUID entityId, in float2 force, bool wakeUp)
 	{
 		Rigidbody2DComponent* rigidBody = GetComponentSafe<Rigidbody2DComponent>(entityId);
@@ -904,7 +910,7 @@ static class ScriptGlue
 		rigidBody.SetPosition(position);
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Rigidbody2D_GetPosition(UUID entityId, out float2 position)
 	{
 		Rigidbody2DComponent* rigidBody = GetComponentSafe<Rigidbody2DComponent>(entityId);
@@ -918,42 +924,42 @@ static class ScriptGlue
 		rigidBody.SetAngle(rotation);
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Rigidbody2D_GetRotation(UUID entityId, out float rotation)
 	{
 		Rigidbody2DComponent* rigidBody = GetComponentSafe<Rigidbody2DComponent>(entityId);
 		rotation = rigidBody.GetAngle();
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Rigidbody2D_GetLinearVelocity(UUID entityId, out float2 velocity)
 	{
 		Rigidbody2DComponent* rigidBody = GetComponentSafe<Rigidbody2DComponent>(entityId);
 		velocity = rigidBody.GetLinearVelocity();
 	}
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Rigidbody2D_SetLinearVelocity(UUID entityId, in float2 velocity)
 	{
 		Rigidbody2DComponent* rigidBody = GetComponentSafe<Rigidbody2DComponent>(entityId);
 		rigidBody.SetLinearVelocity(velocity);
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Rigidbody2D_GetAngularVelocity(UUID entityId, out float velocity)
 	{
 		Rigidbody2DComponent* rigidBody = GetComponentSafe<Rigidbody2DComponent>(entityId);
 		velocity = rigidBody.GetAngularVelocity();
 	}
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Rigidbody2D_SetAngularVelocity(UUID entityId, float velocity)
 	{
 		Rigidbody2DComponent* rigidBody = GetComponentSafe<Rigidbody2DComponent>(entityId);
 		rigidBody.SetAngularVelocity(velocity);
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Rigidbody2D_GetBodyType(UUID entityId, out Rigidbody2DComponent.BodyType bodyType)
 	{
 		Rigidbody2DComponent* rigidBody = GetComponentSafe<Rigidbody2DComponent>(entityId);
@@ -967,7 +973,7 @@ static class ScriptGlue
 		rigidBody.BodyType = bodyType;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Rigidbody2D_IsFixedRotation(UUID entityId, out bool isFixedRotation)
 	{
 		Rigidbody2DComponent* rigidBody = GetComponentSafe<Rigidbody2DComponent>(entityId);
@@ -981,14 +987,14 @@ static class ScriptGlue
 		rigidBody.FixedRotation = isFixedRotation;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Rigidbody2D_GetGravityScale(UUID entityId, out float gravityScale)
 	{
 		Rigidbody2DComponent* rigidBody = GetComponentSafe<Rigidbody2DComponent>(entityId);
 		gravityScale = rigidBody.GravityScale;
 	}
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Rigidbody2D_SetGravityScale(UUID entityId, float gravityScale)
 	{
 		Rigidbody2DComponent* rigidBody = GetComponentSafe<Rigidbody2DComponent>(entityId);
@@ -999,126 +1005,126 @@ static class ScriptGlue
 
 #region Camera
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_GetProjectionType(UUID entityId, out SceneCamera.ProjectionType projectionType)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		projectionType = camera.Camera.ProjectionType;
 	}
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_SetProjectionType(UUID entityId, SceneCamera.ProjectionType projectionType)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		camera.Camera.ProjectionType = projectionType;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_GetPerspectiveFovY(UUID entityId, out float fovY)
 	{
 	    CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		fovY = camera.Camera.PerspectiveFovY;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_SetPerspectiveFovY(UUID entityId, float fovY)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		camera.Camera.PerspectiveFovY = fovY;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_GetPerspectiveNearPlane(UUID entityId, out float nearPlane)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		nearPlane = camera.Camera.PerspectiveNearPlane;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_SetPerspectiveNearPlane(UUID entityId, float nearPlane)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		camera.Camera.PerspectiveNearPlane = nearPlane;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_GetPerspectiveFarPlane(UUID entityId, out float farPlane)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		farPlane = camera.Camera.PerspectiveFarPlane;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_SetPerspectiveFarPlane(UUID entityId, float farPlane)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		camera.Camera.PerspectiveFarPlane = farPlane;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_GetOrthographicHeight(UUID entityId, out float height)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		height = camera.Camera.OrthographicHeight;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_SetOrthographicHeight(UUID entityId, float height)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		camera.Camera.OrthographicHeight = height;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_SetOrthographicNearPlane(UUID entityId, float nearPlane)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		camera.Camera.OrthographicNearPlane = nearPlane;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_GetOrthographicNearPlane(UUID entityId, out float nearPlane)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		nearPlane = camera.Camera.OrthographicNearPlane;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_SetOrthographicFarPlane(UUID entityId, float farPlane)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		camera.Camera.OrthographicFarPlane = farPlane;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_GetOrthographicFarPlane(UUID entityId, out float farPlane)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		farPlane = camera.Camera.OrthographicFarPlane;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_SetAspectRatio(UUID entityId, float aspectRatio)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		camera.Camera.AspectRatio = aspectRatio;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_GetAspectRatio(UUID entityId, out float aspectRatio)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		aspectRatio = camera.Camera.AspectRatio;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_SetFixedAspectRatio(UUID entityId, bool fixedAspectRatio)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
 		camera.Camera.FixedAspectRatio = fixedAspectRatio;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Camera_GetFixedAspectRatio(UUID entityId, out bool fixedAspectRatio)
 	{
 		CameraComponent* camera = GetComponentSafe<CameraComponent>(entityId);
@@ -1131,7 +1137,7 @@ static class ScriptGlue
 
 	// TODO: We need a wrapper class!
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Physics2D_GetGravity(out float2 gravity)
 	{
 		Scene scene = ScriptEngine.Context;
@@ -1139,7 +1145,7 @@ static class ScriptGlue
 		gravity = scene.Physics2DSettings.Gravity;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void Physics2D_SetGravity(in float2 gravity)
 	{
 		Scene scene = ScriptEngine.Context;
@@ -1152,42 +1158,42 @@ static class ScriptGlue
 	// TODO: Do we even need the circle renderer?
 #region CircleRenderer
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void CircleRenderer_GetColor(UUID entityId, out ColorRGBA color)
 	{
 		CircleRendererComponent* circleRenderer = GetComponentSafe<CircleRendererComponent>(entityId);
 		color = circleRenderer.Color;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void CircleRenderer_SetColor(UUID entityId, ColorRGBA color)
 	{
 		CircleRendererComponent* circleRenderer = GetComponentSafe<CircleRendererComponent>(entityId);
 		circleRenderer.Color = color;
 	}
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void CircleRenderer_GetUvTransform(UUID entityId, out float4 uvTransform)
 	{
 		CircleRendererComponent* circleRenderer = GetComponentSafe<CircleRendererComponent>(entityId);
 		uvTransform = circleRenderer.UvTransform;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void CircleRenderer_SetUvTransform(UUID entityId, float4 uvTransform)
 	{
 		CircleRendererComponent* circleRenderer = GetComponentSafe<CircleRendererComponent>(entityId);
 		circleRenderer.UvTransform = uvTransform;
 	}
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void CircleRenderer_GetInnerRadius(UUID entityId, out float innerRadius)
 	{
 		CircleRendererComponent* circleRenderer = GetComponentSafe<CircleRendererComponent>(entityId);
 		innerRadius = circleRenderer.InnerRadius;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void CircleRenderer_SetInnerRadius(UUID entityId, float innerRadius)
 	{
 		CircleRendererComponent* circleRenderer = GetComponentSafe<CircleRendererComponent>(entityId);
@@ -1198,7 +1204,7 @@ static class ScriptGlue
 
 #region SpriteRenderer
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult SpriteRenderer_GetColor(UUID entityId, out ColorRGBA color)
 	{
 		color = ?;
@@ -1207,7 +1213,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult SpriteRenderer_SetColor(UUID entityId, ColorRGBA color)
 	{
 		SpriteRendererComponent* spriteRenderer = GetComponentOrReturn!<SpriteRendererComponent>(entityId);
@@ -1215,7 +1221,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult SpriteRenderer_GetUvTransform(UUID entityId, out float4 uvTransform)
 	{
 		uvTransform = ?;
@@ -1224,7 +1230,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult SpriteRenderer_SetUvTransform(UUID entityId, float4 uvTransform)
 	{
 		SpriteRendererComponent* spriteRenderer = GetComponentOrReturn!<SpriteRendererComponent>(entityId);
@@ -1267,14 +1273,14 @@ static class ScriptGlue
 
 #region TextRenderer
 
-	[RegisterCall(EngineResultAsBool = true), CallingConvention(.Cdecl)]
+	[RegisterCall(EngineResultAsBool = true, GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult TextRenderer_GetIsRichText(UUID entityId)
 	{
 		TextRendererComponent* textComponent = GetComponentOrReturn!<TextRendererComponent>(entityId);
 		return textComponent.IsRichText ? .Ok : .False;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult TextRenderer_SetIsRichText(UUID entityId, bool isRichText)
 	{
 		TextRendererComponent* textComponent = GetComponentOrReturn!<TextRendererComponent>(entityId);
@@ -1285,7 +1291,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult TextRenderer_GetText(UUID entityId, out StringView text)
 	{
 		text = ?;
@@ -1306,7 +1312,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult TextRenderer_GetColor(UUID entityId, out ColorRGBA color)
 	{
 		color = ?;
@@ -1316,7 +1322,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult TextRenderer_SetColor(UUID entityId, ColorRGBA color)
 	{
 		TextRendererComponent* textComponent = GetComponentOrReturn!<TextRendererComponent>(entityId);
@@ -1326,7 +1332,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult TextRenderer_GetHorizontalAlignment(UUID entityId, [GlueParam("out HorizontalTextAlignment")] out HorizontalTextAlignment horizontalAlignment)
 	{
 		horizontalAlignment = ?;
@@ -1335,7 +1341,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult TextRenderer_SetHorizontalAlignment(UUID entityId, [GlueParam("HorizontalTextAlignment")] HorizontalTextAlignment horizontalAlignment)
 	{
 		TextRendererComponent* textComponent = GetComponentOrReturn!<TextRendererComponent>(entityId);
@@ -1344,7 +1350,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult TextRenderer_GetFontSize(UUID entityId, out float fontSize)
 	{
 		fontSize = ?;
@@ -1353,7 +1359,7 @@ static class ScriptGlue
 		return .Ok;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static EngineResult TextRenderer_SetFontSize(UUID entityId, float fontSize)
 	{
 		TextRendererComponent* textComponent = GetComponentOrReturn!<TextRendererComponent>(entityId);
@@ -1422,25 +1428,25 @@ static class ScriptGlue
 
 #region Math
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static float Math_ModfFloat(float x, out float integerPart)
 	{
 		return modf(x, out integerPart);
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static float2 Math_ModfFloat2(float2 x, out float2 integerPart)
 	{
 		return modf(x, out integerPart);
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static float3 Math_ModfFloat3(float3 x, out float3 integerPart)
 	{
 		return modf(x, out integerPart);
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static float4 Math_ModfFloat4(float4 x, out float4 integerPart)
 	{
 		return modf(x, out integerPart);
@@ -1448,7 +1454,7 @@ static class ScriptGlue
 
 #endregion
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static void UUID_Create(out UUID id)
 	{
 		id = UUID.Create();
@@ -1456,25 +1462,25 @@ static class ScriptGlue
 
 #region Application
 	
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static bool Application_IsEditor()
 	{
 		return ScriptEngine.ApplicationInfo.IsEditor;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static bool Application_IsPlayer()
 	{
 		return ScriptEngine.ApplicationInfo.IsPlayer;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static bool Application_IsInEditMode()
 	{
 		return ScriptEngine.ApplicationInfo.IsInEditMode;
 	}
 
-	[RegisterCall, CallingConvention(.Cdecl)]
+	[RegisterCall(GuaranteedShortRunning = true), CallingConvention(.Cdecl)]
 	static bool Application_IsInPlayMode()
 	{
 		return ScriptEngine.ApplicationInfo.IsInPlayMode;

GlitchyEngine/src/Serialization/SerializedObject.bf

@@ -1,6 +1,5 @@
 using GlitchyEngine.Core;
 using GlitchyEngine.Scripting;
-using Mono;
 using System;
 using System.Collections;
 using Bon.Integrated;
@@ -315,7 +314,7 @@ class SerializedObject
 					Serialize.Value(writer, GetFieldDataAs<double>(field.Data), environment);
 				case .Decimal:
 					writer.Type("decimal");
-					Serialize.Value(writer, GetFieldDataAs<MonoDecimal>(field.Data), environment);
+					Serialize.Value(writer, GetFieldDataAs<Decimal>(field.Data), environment);
 
 				case .Enum:
 					writer.Type("Enum");
@@ -499,7 +498,7 @@ class SerializedObject
 						if (reader.inStr.StartsWith('m'))
 							reader.inStr.RemoveFromStart(1);
 	
-						MonoDecimal decimalValue = Try!(MonoDecimal.Parse(numberView));
+						Decimal decimalValue = Try!(Decimal.Parse(numberView));
 						fieldType = .Decimal;
 						object.SetRawData(fieldType, decimalValue, ref fieldData);
 						

GlitchyEngine/src/World/Components/Components.bf

@@ -5,7 +5,6 @@ using GlitchyEngine.Core;
 using Box2D;
 using GlitchyEngine.Content;
 using GlitchyEngine.Scripting;
-using Mono;
 
 namespace GlitchyEngine.World
 {
@@ -670,7 +669,7 @@ namespace GlitchyEngine.World
 		}
 	}
 
-	struct ScriptComponent : IDisposableComponent
+	struct ScriptComponent : IDisposableComponent, ICopyComponent<ScriptComponent>
 	{
 		private String _scriptClassName = null;
 
@@ -705,5 +704,12 @@ namespace GlitchyEngine.World
 			delete _scriptClassName;
 			ReleaseRefAndNullify!(_instance);
 		}
+
+		public static void Copy(ScriptComponent* source, ScriptComponent* target)
+		{
+			target.ScriptClassName = source.ScriptClassName;
+
+			// TODO: This is just half the work, because we actually have to somehow handle the script instance
+		}
 	}
 }

GlitchyEngineHelper/src/Mono/Jit/Jit.bf

@@ -1,5 +0,0 @@
-namespace Mono;
-
-class Jit
-{
-}

GlitchyEngineHelper/src/Mono/Metadata/Assembly.bf

@@ -1,9 +0,0 @@
-using System;
-
-namespace Mono.Metadata;
-
-class Assembly
-{
-	[LinkName(.C)]
-	public static extern void mono_set_assemblies_path(char8* path);
-}

GlitchyEngineHelper/src/Mono/Mono.bf

@@ -1,601 +0,0 @@
-using System;
-
-namespace Mono;
-
-static class Mono
-{
-	typealias mono_bool = System.Windows.IntBool;
-
-	[LinkName(.C)]
-	public static extern void mono_set_assemblies_path(char8* path);
-
-	[LinkName(.C)]
-	public static extern MonoDomain* mono_jit_init(char8* file);
-
-	[LinkName(.C)]
-	public static extern void mono_jit_parse_options(int32 argc, char8** argv);
-
-	[LinkName(.C)]
-	public static extern void mono_jit_cleanup(MonoDomain* domain);
-
-	[LinkName(.C)]
-	public static extern MonoDomain* mono_domain_create_appdomain(char8* friendly_name, char8* configuration_file);
-
-	[LinkName(.C)]
-	public static extern mono_bool mono_domain_set(MonoDomain* domain, mono_bool force);
-
-	[LinkName(.C)]
-	public static extern MonoImage* mono_image_open_from_data_full(uint8* data, uint32 data_len,
-		mono_bool need_copy, MonoImageOpenStatus* status, mono_bool refonly);
-
-	[LinkName(.C)]
-	public static extern MonoImage* mono_assembly_get_image(MonoAssembly* assembly);
-	
-	[LinkName(.C)]
-	public static extern void mono_assembly_close(MonoAssembly* assembly);
-
-	[LinkName(.C)]
-	public static extern void mono_image_close(MonoImage* image);
-	
-	[LinkName(.C)]
-	public static extern char8* mono_image_strerror(MonoImageOpenStatus status);
-
-	[LinkName(.C)]
-	public static extern MonoAssembly* mono_assembly_load_from_full(MonoImage* image, char8* fileName,
-					MonoImageOpenStatus* status, mono_bool refonly);
-
-	
-	[LinkName(.C)]
-	public static extern MonoTableInfo* mono_image_get_table_info(MonoImage* image, MonoMetaTableEnum table_id);
-	
-	[LinkName(.C)]
-	public static extern int32 mono_image_get_table_rows(MonoImage *image, MonoMetaTableEnum table_id);
-	
-	[LinkName(.C)]
-	public static extern int32 mono_table_info_get_rows(MonoTableInfo* table);
-
-	[LinkName(.C)]
-	public static extern void mono_metadata_decode_row (MonoTableInfo* t,
-				       int32 idx,
-				       uint32* res,
-				       int32 res_size);
-
-	[LinkName(.C)]
-	public static extern char8* mono_metadata_string_heap(MonoImage* meta, uint32 table_index);
-	[LinkName(.C)]
-	public static extern uint8* mono_metadata_blob_heap(MonoImage* meta, uint32 index);
-	[LinkName(.C)]
-	public static extern uint32 mono_metadata_decode_blob_size(uint8* xptr, out uint8* newPosition);
-
-	typealias gconstpointer = void*;
-	typealias gpointer = void*;
-
-	[LinkName(.C)]
-	public static extern void mono_add_internal_call(char8* name, gconstpointer method);
-	
-	[LinkName(.C)]
-	public static extern MonoString* mono_string_new(MonoDomain* domain, char8* text);
-	
-	[LinkName(.C)]
-	public static extern MonoString* mono_string_new_len(MonoDomain* domain, char8* text, uint32 length);
-
-	[LinkName(.C)]
-	public static extern MonoDomain* mono_domain_get();
-
-	[LinkName(.C)]
-	public static extern MonoClass* mono_class_from_name(MonoImage* image, char8* name_space,
-		char8* name);
-
-	[LinkName(.C)]
-	public static extern MonoClass* mono_class_from_mono_type(MonoType* type);
-
-	[LinkName(.C)]
-	public static extern char8* mono_class_get_name(MonoClass* monoClass);
-	
-	[LinkName(.C)]
-	public static extern MonoType* mono_class_get_type(MonoClass* monoClass);
-	
-	[LinkName(.C)]
-	public static extern int32 mono_class_instance_size(MonoClass* @class);
-
-	[LinkName(.C)]
-	public static extern char8* mono_class_get_namespace(MonoClass* monoClass);
-	
-	[LinkName(.C)]
-	public static extern MonoImage* mono_class_get_image(MonoClass* monoClass);
-
-	[LinkName(.C)]
-	public static extern MonoClass* mono_class_load_from_name(MonoImage* image, char8* name_space,
-		char8* name);
-
-	[LinkName(.C)]
-	public static extern MonoObject* mono_object_new(MonoDomain* domain, MonoClass* klass);
-	
-	[LinkName(.C)]
-	public static extern void mono_runtime_object_init(MonoObject* this_obj);
-
-	[LinkName(.C)]
-	public static extern MonoMethod* mono_class_get_methods(MonoClass* klass, gpointer* iter);
-
-	[LinkName(.C)]
-	public static extern MonoMethod* mono_class_get_method_from_name(MonoClass* klass, char8* name, int param_count);
-
-	[LinkName(.C)]
-	public static extern MonoObject* mono_runtime_invoke(MonoMethod* method, void* obj, void** param, MonoObject** exc);
-	
-	[LinkName(.C)]
-	public static extern MonoMethod* mono_object_get_virtual_method(MonoObject* obj, MonoMethod* method);
-
-	[LinkName(.C)]
-	public static extern void* mono_object_unbox(MonoObject* obj);
-	
-	[LinkName(.C)]
-	public static extern void* mono_domain_unload(MonoDomain* domain);
-
-	
-	[LinkName(.C)]
-	public static extern gpointer mono_method_get_unmanaged_thunk(MonoMethod *method);
-
-	[LinkName(.C)]
-	public static extern char8* mono_method_get_name(MonoMethod *method);
-	
-	[LinkName(.C)]
-	public static extern MonoMethodSignature* mono_method_signature(MonoMethod *method);
-
-	[LinkName(.C)]
-	public static extern uint32 mono_signature_get_param_count(MonoMethodSignature *sig);
-	
-	[LinkName(.C)]
-	public static extern MonoType* mono_signature_get_params(MonoMethodSignature *sig, gpointer *iter);
-
-	[LinkName(.C)]
-	public static extern mono_bool mono_class_is_subclass_of(MonoClass *monoClass, MonoClass *parentClass,
-		mono_bool check_interfaces);
-
-	[LinkName(.C)]
-	public static extern uint32 mono_gchandle_new(MonoObject* obj, mono_bool pinned);
-	
-	[LinkName(.C)]
-	public static extern void mono_gchandle_free(uint32 gchandle);
-	
-	[LinkName(.C)]
-	public static extern char8* mono_string_to_utf8(MonoString *s);
-	
-	[LinkName(.C)]
-	public static extern char8* mono_string_to_utf8_checked(MonoString *s, MonoError* error);
-	
-	[LinkName(.C)]
-	public static extern void mono_free(void* ptr);
-	
-	[LinkName(.C)]
-	public static extern MonoClassField* mono_class_get_field_from_name(MonoClass* monoClass, char8* name);
-
-	[LinkName(.C)]
-	public static extern void mono_field_set_value(MonoObject* obj, MonoClassField* field, void* value);
-
-	[LinkName(.C)]
-	public static extern MonoType* mono_reflection_type_from_name(char8* name, MonoImage* image);
-
-	[LinkName(.C)]
-	public static extern MonoType* mono_reflection_type_get_type(MonoReflectionType* reflectionType);
-
-	[LinkName(.C)]
-	public static extern MonoReflectionType* mono_type_get_object(MonoDomain *domain, MonoType *type);
-
-	[LinkName(.C)]
-	public static extern MonoClassField* mono_class_get_fields(MonoClass* klass, gpointer* iter);
-
-	[LinkName(.C)]
-	public static extern MonoClass* mono_class_get_parent(MonoClass* klass);
-	
-	[LinkName(.C)]
-	public static extern char8* mono_field_get_name(MonoClassField* field);
-
-	[LinkName(.C)]
-	public static extern MonoType* mono_field_get_type(MonoClassField* field);
-
-	[LinkName(.C)]
-	public static extern MonoClass* mono_field_get_parent(MonoClassField* field);
-
-	[LinkName(.C)]
-	public static extern uint32 mono_field_get_flags(MonoClassField* field);
-
-	[LinkName(.C)]
-	public static extern uint8* mono_field_get_data(MonoClassField* field);
-
-	[LinkName(.C)]
-	public static extern void mono_field_get_value(MonoObject* object, MonoClassField* field, void* value);
-	
-	[LinkName(.C)]
-	public static extern void mono_field_static_get_value(MonoVTable* vt, MonoClassField* field, void* value);
-
-	/// Gets the field as object, boxes the value if it is a valuetype.
-	[LinkName(.C)]
-	public static extern MonoObject* mono_field_get_value_object(MonoDomain* domain, MonoClassField* field, MonoObject* obj);
-	
-	[LinkName(.C)]
-	public static extern MonoCustomAttrInfo* mono_custom_attrs_from_class(MonoClass *klass);
-
-	[LinkName(.C)]
-	public static extern MonoCustomAttrInfo* mono_custom_attrs_from_field(MonoClass* monoClass, MonoClassField* field);
-	
-	[LinkName(.C)]
-	public static extern mono_bool mono_custom_attrs_has_attr(MonoCustomAttrInfo* attributeInfo, MonoClass* attributeClass);
-
-	[LinkName(.C)]
-	public static extern MonoObject* mono_custom_attrs_get_attr(MonoCustomAttrInfo* attributeInfo, MonoClass* attributeClass);
-
-	[LinkName(.C)]
-	public static extern Mono.MonoTypeEnum mono_type_get_type(MonoType* type);
-	
-	[LinkName(.C)]
-	public static extern char8* mono_type_get_name(MonoType* type);
-	
-	[LinkName(.C)]
-	public static extern char8* mono_type_full_name(MonoType* type);
-	
-	[LinkName(.C)]
-	public static extern MonoClass* mono_type_get_class(MonoType* type);
-
-	/// MonoError
-
-	[LinkName(.C)]
-	public static extern void mono_error_cleanup(MonoError* error);
-
-	[LinkName(.C)]
-	public static extern mono_bool mono_error_ok(MonoError* error);
-	
-	[LinkName(.C)]
-	public static extern char8* mono_error_get_message(MonoError* error);
-
-	[LinkName(.C)]
-	public static extern void mono_debug_init(DebugFormat debugFormat);
-	
-	[LinkName(.C)]
-	public static extern void mono_debug_domain_create(MonoDomain* domain);
-	
-	[LinkName(.C)]
-	public static extern void mono_debug_domain_unload(MonoDomain* domain);
-
-	[LinkName(.C)]
-	public static extern void mono_debug_open_image_from_memory(MonoImage *image, uint8* raw_contents, int32 size);
-
-	[LinkName(.C)]
-	public static extern void mono_thread_set_main(MonoThread* thread);
-	
-	[LinkName(.C)]
-	public static extern MonoThread* mono_thread_current();
-
-#region Property
-
-	[LinkName(.C)]
-	public static extern MonoProperty* mono_class_get_property_from_name(MonoClass *klass, char8* name);
-	
-	[LinkName(.C)]
-	public static extern void mono_property_set_value(MonoProperty *prop, void *obj, void **@params, MonoObject **exc);
-	
-	[LinkName(.C)]
-	public static extern MonoObject* mono_property_get_value(MonoProperty *prop, void *obj, void** @params, MonoObject** exc);
-
-#endregion
-
-#region Exception
-	
-	[LinkName(.C), NoReturn]
-	public static extern void mono_raise_exception(MonoException *ex);
-
-	[LinkName(.C)]
-	public static extern char8* mono_exception_get_managed_backtrace(MonoException* exc);
-	
-	[LinkName(.C)]
-	public static extern MonoException* mono_exception_from_name_msg(MonoImage *image, char8* name_space, char8* name, char8* msg);
-
-	[LinkName(.C)]
-	public static extern MonoException* mono_get_exception_argument(char8* arg, char8* msg);
-
-	[LinkName(.C)]
-	public static extern MonoException* mono_get_exception_invalid_operation(char8* msg);
-
-	[LinkName(.C)]
-	public static extern MonoException* mono_get_exception_not_implemented(char8* msg);
-
-#endregion
-
-	[LinkName(.C)]
-	public static extern MonoClass* mono_object_get_class(MonoObject* obj);
-
-	
-	[LinkName(.C)]
-	public static extern mono_bool mono_class_is_enum(MonoClass* @class);
-
-	
-	[LinkName(.C)]
-	public static extern MonoVTable* mono_class_vtable(MonoDomain* domain, MonoClass* @class);
-
-	
-	[LinkName(.C)]
-	public static extern MonoObject* mono_value_box(MonoDomain* domain, MonoClass* klass, gpointer value);
-
-#region MonoArray
-
-	typealias uintptr_t = uint;
-	typealias intptr_t = int;
-
-	[LinkName(.C)]
-	public static extern MonoArray* mono_array_new(MonoDomain *domain, MonoClass *eclass, uintptr_t length);
-	
-	[LinkName(.C)]
-	public static extern MonoArray* mono_array_new_checked(MonoDomain *domain, MonoClass *eclass, uintptr_t length, MonoError *error);
-
-	[LinkName(.C)]
-	public static extern MonoArray* mono_array_new_full(MonoDomain *domain, MonoClass *array_class, uintptr_t* lengths, uintptr_t* lower_bounds);
-	
-	[LinkName(.C)]
-	public static extern MonoArray* mono_array_new_full_checked(MonoDomain *domain, MonoClass *array_class, uintptr_t* lengths, uintptr_t* lower_bounds, MonoError *error);
-
-	[LinkName(.C)]
-	public static extern void mono_array_full_copy(MonoArray* src, MonoArray* dest);
-	
-	[LinkName(.C)]
-	public static extern MonoArray* mono_array_clone(MonoArray* array);
-	
-	[LinkName(.C)]
-	public static extern MonoArray* mono_array_clone_checked(MonoArray* array, MonoError* error);
-	
-	[LinkName(.C)]
-	public static extern void* mono_array_addr_with_size(MonoArray *array, int32 size, uintptr_t idx);
-
-	[LinkName(.C)]
-	public static extern uintptr_t mono_array_length(MonoArray *array);
-	
-	[Inline]
-	public static T* mono_array_addr<T>(MonoArray* array, uintptr_t index)
-	{
-		return (T*)mono_array_addr_with_size(array, sizeof(T), index);
-	}
-
-	[Inline]
-	public static T mono_array_get<T>(MonoArray* array, uintptr_t index)
-	{
-		return *mono_array_addr<T>(array, index);
-	}
-
-	[Inline]
-	public static void mono_array_set<T>(MonoArray* array, uintptr_t index, T value)
-	{
-		T* entryPtr = mono_array_addr<T>(array, index);
-		*entryPtr = value;
-	}
-
-#endregion
-
-#region DebugHelpers
-	
-	[LinkName(.C)]
-	public static extern MonoMethod* mono_method_desc_search_in_class(MonoMethodDesc* desc, MonoClass* klass);
-
-	[LinkName(.C)]
-	public static extern MonoMethodDesc* mono_method_desc_new(char8* name, mono_bool include_namespace);
-
-	[LinkName(.C)]
-	public static extern void mono_method_desc_free(MonoMethodDesc* decs);
-
-#endregion
-}
-
-struct MonoMethodDesc;
-
-struct MonoDomain;
-
-struct MonoAssembly;
-
-struct MonoImage;
-
-struct MonoTableInfo;
-
-struct MonoString;
-
-struct MonoClass;
-
-struct MonoObject;
-
-struct MonoMethod;
-
-struct MonoMethodSignature;
-
-struct MonoProperty;
-
-struct MonoThread;
-
-struct MonoVTable;
-
-struct MonoArray;
-
-struct MonoException
-{
-	void* _bla;
-	void* _bla2;
-	void* _bla3;
-	public MonoString* Message;
-}
-
-struct MonoClassField;
-
-struct MonoType;
-
-struct MonoError
-{
-	private uint32 bla;
-	private void*[12] bla2;
-}
-
-struct MonoReflectionType;
-
-struct MonoCustomAttrInfo;
-
-enum MonoImageOpenStatus
-{
-	Ok,
-	Error_Errno,
-	MissingAssemblyRef,
-	ImageInvalid
-}
-
-enum SOME_RANDOM_ENUM{
-	MONO_TYPEDEF_FLAGS,
-	MONO_TYPEDEF_NAME,
-	MONO_TYPEDEF_NAMESPACE,
-	MONO_TYPEDEF_EXTENDS,
-	MONO_TYPEDEF_FIELD_LIST,
-	MONO_TYPEDEF_METHOD_LIST,
-	MONO_TYPEDEF_SIZE
-}
-
-enum FIELD_TABLE_FLAGS : uint32
-{
-	MONO_FIELD_FLAGS,
-	MONO_FIELD_NAME,
-	MONO_FIELD_SIGNATURE,
-	MONO_FIELD_SIZE
-}
-
-enum MonoMetaTableEnum : int32
-{
-	MONO_TABLE_MODULE,
-	MONO_TABLE_TYPEREF,
-	MONO_TABLE_TYPEDEF,
-	MONO_TABLE_FIELD_POINTER,
-	MONO_TABLE_FIELD,
-	MONO_TABLE_METHOD_POINTER,
-	MONO_TABLE_METHOD,
-	MONO_TABLE_PARAM_POINTER,
-	MONO_TABLE_PARAM,
-	MONO_TABLE_INTERFACEIMPL,
-	MONO_TABLE_MEMBERREF, /* 0xa */
-	MONO_TABLE_CONSTANT,
-	MONO_TABLE_CUSTOMATTRIBUTE,
-	MONO_TABLE_FIELDMARSHAL,
-	MONO_TABLE_DECLSECURITY,
-	MONO_TABLE_CLASSLAYOUT,
-	MONO_TABLE_FIELDLAYOUT, /* 0x10 */
-	MONO_TABLE_STANDALONESIG,
-	MONO_TABLE_EVENTMAP,
-	MONO_TABLE_EVENT_POINTER,
-	MONO_TABLE_EVENT,
-	MONO_TABLE_PROPERTYMAP,
-	MONO_TABLE_PROPERTY_POINTER,
-	MONO_TABLE_PROPERTY,
-	MONO_TABLE_METHODSEMANTICS,
-	MONO_TABLE_METHODIMPL,
-	MONO_TABLE_MODULEREF, /* 0x1a */
-	MONO_TABLE_TYPESPEC,
-	MONO_TABLE_IMPLMAP,
-	MONO_TABLE_FIELDRVA,
-	MONO_TABLE_ENCLOG,
-	MONO_TABLE_ENCMAP,
-	MONO_TABLE_ASSEMBLY, /* 0x20 */
-	MONO_TABLE_ASSEMBLYPROCESSOR,
-	MONO_TABLE_ASSEMBLYOS,
-	MONO_TABLE_ASSEMBLYREF,
-	MONO_TABLE_ASSEMBLYREFPROCESSOR,
-	MONO_TABLE_ASSEMBLYREFOS,
-	MONO_TABLE_FILE,
-	MONO_TABLE_EXPORTEDTYPE,
-	MONO_TABLE_MANIFESTRESOURCE,
-	MONO_TABLE_NESTEDCLASS,
-	MONO_TABLE_GENERICPARAM, /* 0x2a */
-	MONO_TABLE_METHODSPEC,
-	MONO_TABLE_GENERICPARAMCONSTRAINT,
-	MONO_TABLE_UNUSED8,
-	MONO_TABLE_UNUSED9,
-	MONO_TABLE_UNUSED10,
-	/* Portable PDB tables */
-	MONO_TABLE_DOCUMENT, /* 0x30 */
-	MONO_TABLE_METHODBODY,
-	MONO_TABLE_LOCALSCOPE,
-	MONO_TABLE_LOCALVARIABLE,
-	MONO_TABLE_LOCALCONSTANT,
-	MONO_TABLE_IMPORTSCOPE,
-	MONO_TABLE_STATEMACHINEMETHOD,
-	MONO_TABLE_CUSTOMDEBUGINFORMATION
-
-//#define MONO_TABLE_LAST MONO_TABLE_CUSTOMDEBUGINFORMATION
-//#define MONO_TABLE_NUM (MONO_TABLE_LAST + 1)
-
-}
-
-enum DebugFormat : uint32
-{
-	None,
-	Mono,
-	/** Deprecated, the mdb debugger is not longer supported. */
-	Debugger
-}
-
-enum FieldAttribute
-{
-	FieldAccessMask = 0x0007,
-	CompilerControlled = 0x0000,
-	Private = 0x0001,
-	FamAndAssem = 0x0002,
-	Assembly = 0x0003,
-	Family = 0x0004,
-	FamOrAssem = 0x0005,
-	Public = 0x0006,
-	Static = 0x0010,
-	InitOnly = 0x0020,
-	Literal = 0x0040,
-	NotSerialized = 0x0080,
-	SpecialName = 0x0200,
-	PinvokeImpl = 0x2000,
-	/** For runtime use only */
-	ReservedMask = 0x9500,
-	/** For runtime use only */
-	RtSpecialName = 0x0400,
-	/** For runtime use only */
-	HasFieldMarshal = 0x1000,
-	/** For runtime use only */
-	HasDefault = 0x8000,
-	/** For runtime use only */
-	HasFieldRva = 0x0100
-}
-
-enum MonoTypeEnum : int32
-{
-	End = 0x00,       /* End of List */
-	Void = 0x01,
-	Boolean = 0x02,
-	Char = 0x03,
-	I1 = 0x04,
-	U1 = 0x05,
-	I2 = 0x06,
-	U2 = 0x07,
-	I4 = 0x08,
-	U4 = 0x09,
-	I8 = 0x0a,
-	U8 = 0x0b,
-	R4 = 0x0c,
-	R8 = 0x0d,
-	String = 0x0e,
-	Ptr = 0x0f,       /* arg: <type> token */
-	Byref = 0x10,       /* arg: <type> token */
-	Valuetype = 0x11,       /* arg: <type> token */
-	Class = 0x12,       /* arg: <type> token */
-	Var = 0x13,	   /* number */
-	Array = 0x14,       /* type, rank, boundsCount, bound1, loCount, lo1 */
-	Genericinst = 0x15,	   /* <type> <type-arg-count> <type-1> \x{2026} <type-n> */
-	Typedbyref = 0x16,
-	I = 0x18,
-	U = 0x19,
-	Fnptr = 0x1b,	      /* arg: full method signature */
-	Object = 0x1c,
-	SzArray = 0x1d,       /* 0-based one-dim-array */
-	Mvar = 0x1e,       /* number */
-	CmodReqd = 0x1f,       /* arg: typedef or typeref token */
-	CmodOpt = 0x20,       /* optional arg: typedef or typref token */
-	Internal = 0x21,       /* CLR internal type */
-	Modifier = 0x40,       /* Or with the following types */
-	Sentinel = 0x41,       /* Sentinel for varargs method signature */
-	Pinned = 0x45,       /* Local var that points to pinned object */
-	Enum = 0x55        /* an enumeration */
-}

ScriptCore/Editor/EntityEditor.cs

@@ -613,16 +613,9 @@ internal class EntityEditor
         {
 
         }
-        else if (fieldType.IsGenericType)
+        else if (fieldType.IsGenericType && fieldType.GetGenericTypeDefinition() == typeof(List<>))
         {
-            if (fieldType.GetGenericTypeDefinition() == typeof(List<>))
+            newValue = ShowListEditor(fieldType, reference, fieldName);
-            {
-                newValue = ShowListEditor(fieldType, reference, fieldName);
-            }
-            else
-            {
-                ImGui.TextColored(new Vector4(1, 0, 0, 1), $"{fieldName}: Type {fieldType} is not implemented.");
-            }
         }
         else if (fieldType.IsArray)
         {

ScriptCore/Entity.cs

@@ -21,7 +21,7 @@ public partial class Entity : EngineObject
     /// </summary>
     public string Name
     {
-        get => "TODO!";//ScriptGlue.Entity_GetName(_uuid);
+        get => ScriptGlue.Entity_GetName(_uuid);
         set => ScriptGlue.Entity_SetName(_uuid, value);
     }
     

ScriptCore/Extensions/TypeExtension.cs

@@ -95,52 +95,98 @@ public static class TypeExtension
         ReadOnlySpan<char> typeName = ReadTypeName(fullName);
         rest = rest.Slice(typeName.Length);
 
-        if (rest.IsEmpty || rest[0] != '`')
+        if (rest.IsEmpty || (rest[0] != '[' && rest[0] != '`'))
         {
             // Non generic type, easy!
             return GetType(typeName);
         }
         
-        // Handle generic type
+        if (rest[0] == '[')
-
-        int brackedIndex = fullName.IndexOf('[');
-
-        typeName = fullName.Slice(0, brackedIndex);
-        rest = fullName.Slice(brackedIndex + 1).Trim();
-
-        Type? genericType = GetType(typeName);
-
-        Console.WriteLine($"Generic Type: {genericType}");
-        
-        List<Type> arguments = new List<Type>();
-
-        while (true)
         {
-            Type? argument = FindType(rest, ref rest);
+            Type? baseType = GetType(typeName);
-            Console.WriteLine($"Argument:  {argument}");
 
-            Debug.Assert(argument != null);
+            if (baseType == null)
-
-            arguments.Add(argument!);
-
-            rest = rest.TrimStart();
-
-            if (rest.TrimStart()[0] == ',')
             {
-                rest = rest.Slice(1);
+                Log.Error($"Failed to find element type {typeName} of array type {fullName}");
+                return null;
             }
-            else if (rest.TrimStart()[0] == ']')
+
+            // Handle array type
+            int rank = 1;
+            bool forceMultiDimensional = false;
+            for (int i = 0; i < rest.Length; i++)
             {
-                rest = rest.Slice(1);
+                if (rest[i] == ',')
-                break;
+                {
+                    rank++;
+                }
+                else if (rest[i] == '*')
+                {
+                    forceMultiDimensional = true;
+                }
+                else if (rest[i] == ']')
+                {
+                    rest = rest.Slice(i + 1);
+                    break;
+                }
+            }
+
+            Debug.Assert(rest.IsEmpty);
+
+            // It is important to use MakeArrayType() for single-dimensional arrays, as a single-dimension array is distinct from a multi-dimension array of rank 1. The latter cannot be created using normal code, but can be created using reflection.
+            if (rank == 1 && !forceMultiDimensional)
+            {
+                return baseType.MakeArrayType();
             }
             else
             {
-                break;
+                return baseType.MakeArrayType(rank);
             }
         }
         
-        return genericType?.MakeGenericType(arguments.ToArray());
+        if (rest[0] == '`')
+        {
+            // Handle generic type
+
+            int brackedIndex = fullName.IndexOf('[');
+
+            typeName = fullName.Slice(0, brackedIndex);
+            rest = fullName.Slice(brackedIndex + 1).Trim();
+
+            Type? genericType = GetType(typeName);
+
+            List<Type> arguments = new List<Type>();
+
+            while (true)
+            {
+                Type? argument = FindType(rest, ref rest);
+
+                Debug.Assert(argument != null);
+
+                arguments.Add(argument!);
+
+                rest = rest.TrimStart();
+
+                if (rest.TrimStart()[0] == ',')
+                {
+                    rest = rest.Slice(1);
+                }
+                else if (rest.TrimStart()[0] == ']')
+                {
+                    rest = rest.Slice(1);
+                    break;
+                }
+                else
+                {
+                    break;
+                }
+            }
+
+            return genericType?.MakeGenericType(arguments.ToArray());
+        }
+
+        Log.Error($"Failed to find a type for {typeName}.");
+        return null;
     }
 
     private static Type? GetType(ReadOnlySpan<char> fullName)

ScriptCore/ScriptGlue.cs

@@ -18,6 +18,12 @@ using System.Text;
 using System.Threading;
 using System.Xml.Linq;
 
+// This attribute is NOT optional, removing it silently breaks every engine function that takes or returns a bool!
+// With runtime marshalling enabled the CLR treats bool in an unmanaged function pointer as a 4-byte Win32 BOOL and checks all of eax,
+// but Beef only writes al (1 byte). The upper bytes are garbage, so the result is (almost) always true. Everything would still compile.
+// The price: in/ref/out are not allowed in unmanaged signatures of this assembly, which is why the generator emits raw pointers and pins with fixed.
+[assembly: DisableRuntimeMarshalling]
+
 namespace GlitchyEngine;
 
 /// <summary>
@@ -679,6 +685,15 @@ internal static unsafe partial class ScriptGlue
         }
     }
 
+    /// <summary>
+    /// Layout stand-in to get a reference to the contents of a boxed value type via <see cref="Unsafe.As{T}(object)"/>.
+    /// Never instantiated.
+    /// </summary>
+    private sealed class RawData
+    {
+        public byte Data;
+    }
+
     public static void Serialization_SerializeField(IntPtr serializationContext, SerializationType type, string fieldName, object? valueObject, string? fullTypeName)
     {
         StringView fieldNameConverted;
@@ -730,7 +745,7 @@ internal static unsafe partial class ScriptGlue
                     nativeString = new StringView(pointer, bytes);
                 }
                 
-                _engineFunctions.Serialization_SerializeField((void*)serializationContext, type, fieldNameConverted, &nativeString, fullTypeNameConverted);
+                _engineFunctions.Serialization_SerializeField((void*)serializationContext, type, &fieldNameConverted, &nativeString, &fullTypeNameConverted);
                 
                 if (onHeap)
                     StringView.FreeNativeMemory(nativeString);
@@ -738,25 +753,16 @@ internal static unsafe partial class ScriptGlue
             default:
                 if (valueObject is not null)
                 {
-                    // This is probably the dirtiest piece of C# Code, that I have ever seen.
+                    // valueObject is a boxed value type. An object reference points to the method table pointer, the boxed value starts right behind it.
-                    // We first take a pointer the Object (which itself is a reference type -> object* is a double pointer!)
+                    // That's exactly where the first field of RawData lives, so reinterpreting the box gives us a reference to the first byte of the value.
-                    // We then dereference this double pointer, which gives us a pointer to the objects internals.
+                    // We have to pin it: During the native call this thread is in preemptive mode and a GC is free to move the box.
-                    // These are Header (64bit), Method Table (64bit), and the objects content (at least another 64bit)
+                    fixed (byte* valueRef = &Unsafe.As<RawData>(valueObject).Data)
-                    // I believe, that the actual reference points to the method table however and not the header (compare gcenv.object.h)
+                    {
-                    // Below we calculate a pointer to the objects contents by adding the size of a pointer.
+                        _engineFunctions.Serialization_SerializeField((void*)serializationContext, type, &fieldNameConverted, valueRef, &fullTypeNameConverted);
-
+                    }
-#pragma warning disable CS8500 // This takes the address of, gets the size of, or declares a pointer to a managed type
-                    object?* objectRef = &valueObject;
-                    // Skip Object Header (IntPtr) + Method Table (IntPtr) 
-                    byte* valueRef = (byte*)*(IntPtr*)objectRef + sizeof(IntPtr);
-                    float* fRef = (float*)(void*)valueRef;
-                    _engineFunctions.Serialization_SerializeField((void*)serializationContext, type, fieldNameConverted, valueRef, fullTypeNameConverted);
                 }
                 break;
         }
-
-        //StringView.FreeNativeMemory(fieldNameConverted);
-        //StringView.FreeNativeMemory(fullTypeNameConverted);
     }
 
     public static void Serialization_SerializeValueType<T>(IntPtr serializationContext, SerializationType type, string fieldName, in T value, string? fullTypeName) where T : unmanaged
@@ -782,7 +788,7 @@ internal static unsafe partial class ScriptGlue
 
         fixed (T* valuePtr = &value)
         {
-            _engineFunctions.Serialization_SerializeField((void*)serializationContext, type, fieldNameConverted, valuePtr, fullTypeNameConverted);
+            _engineFunctions.Serialization_SerializeField((void*)serializationContext, type, &fieldNameConverted, valuePtr, &fullTypeNameConverted);
         }
     }
 

ScriptCore/Serialization/DeserializationObject.cs

@@ -56,6 +56,7 @@ public class DeserializationObject
         {
             ScriptGlue.Serialization_GetObjectTypeName(_internalContext, out string fullTypeName);
 
+            // TODO: Retrieving the entire type by name is not ideal, we should probably consider using a more efficient approach.
             return GetTypeFromName(fullTypeName);
         }
     }
@@ -323,7 +324,9 @@ public class DeserializationObject
             return deserializedValue;
         }
 
-        if (fieldType.IsPrimitive)
+        // Decimals are not actually primitives, but we treat them as if they were, because they are a built-in type
+        // and it makes more sense to send them over to the engine as a binary type than to serialize their underlying fields (which would happen when we treated them as a struct).
+        if (fieldType.IsPrimitive || fieldType == typeof(decimal))
         {
             return DeserializePrimitive(fieldName, fieldType);
         }
@@ -363,7 +366,7 @@ public class DeserializationObject
 
     public object? DeserializePrimitive(string fieldName, Type fieldType)
     {
-        Debug.Assert(fieldType.IsPrimitive, $"{fieldType} is not a primitive type.");
+        Debug.Assert(fieldType.IsPrimitive || fieldType == typeof(decimal), $"{fieldType} is not a primitive type.");
 
         SerializationType expectedType = SerializationType.None;
         

ScriptCore/Serialization/SerializedObject.cs

@@ -176,6 +176,11 @@ public class SerializedObject
 
     public void SerializeField(string fieldName, object? fieldValue, Type fieldType)
     {
+        if (TryCustomSerializer(fieldName, fieldValue, fieldType))
+            return;
+
+        // Decimals are not actually primitives, but we treat them as if they were, because they are a built-in type
+        // and it makes more sense to send them over to the engine as a binary type than to serialize their underlying fields (which would happen when we treated them as a struct).
         if (fieldType.IsPrimitive || fieldType == typeof(decimal))
         {
             // Primitives can't be null
@@ -200,38 +205,17 @@ public class SerializedObject
 
             SerializeList(fieldName, fieldValue, fieldType, fieldType.GetElementType()!);
         }
-        else if (fieldType.IsGenericType)
+        else if (fieldType.IsGenericType && fieldType.GetGenericTypeDefinition() == typeof(List<>))
         {
-            if (TryCustomSerializer(fieldName, fieldValue, fieldType))
+            SerializeList(fieldName, fieldValue, fieldType, fieldType.GetGenericArguments()[0]);
-                return;
-
-            if (fieldType.GetGenericTypeDefinition() == typeof(List<>))
-            {
-                SerializeList(fieldName, fieldValue, fieldType, fieldType.GetGenericArguments()[0]);
-            }
-            //else if (fieldType.GetGenericTypeDefinition() == typeof(Dictionary<,>))
-            //{
-            //    ImGui.Text($"{fieldName} Dictionary");
-            //}
-            else
-            {
-                // TODO: what to do?
-                Log.Error($"Generic class serialization not yet implemented");
-            }
         }
         else if (fieldType.IsValueType)
         {
-            if (TryCustomSerializer(fieldName, fieldValue, fieldType))
-                return;
-
             // Value Types cant be null
             SerializeStruct(fieldName, fieldValue!, fieldType);
         }
         else if (fieldType.IsClass)
         {
-            if (TryCustomSerializer(fieldName, fieldValue, fieldType))
-                return;
-
             SerializeClass(fieldName, fieldValue, fieldType);
         }
         else

ScriptCoreGenerator/ScriptGlueGenerator.cs

@@ -9,8 +9,11 @@ using System.Text.Json;
 using System.Text.Json.Serialization;
 using System.Threading;
 using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
 
+using static Microsoft.CodeAnalysis.CSharp.SyntaxFactory;
+
 namespace ScriptCoreGenerator;
 
 internal class GlueMethod
@@ -19,6 +22,8 @@ internal class GlueMethod
     public string Name { get; set; }
     [JsonPropertyName("return_type")]
     public string ReturnType { get; set; }
+    [JsonPropertyName("guaranteed_short_running")]
+    public bool GuaranteedShortRunning { get; set; }
     [JsonPropertyName("parameters")]
     public List<Parameter> Parameters { get; set; }
 
@@ -292,23 +297,13 @@ public class ScriptGlueGenerator : IIncrementalGenerator
             var (parameterType, parameterModifier) = DecodeType(param.Type, beefTypeToMappedType);
             parameters.Add(parameterType);
 
-            switch (parameterModifier)
-            {
-                case TypeModifier.In:
-                    parameterText.Append("in ");
-                    break;
-                case TypeModifier.Out:
-                    parameterText.Append("out ");
-                    break;
-                case TypeModifier.Ref:
-                    parameterText.Append("ref ");
-                    break;
-            }
-
             parameterText.Append(parameterType.CSharpTypeName);
 
             switch (parameterModifier)
             {
+                case TypeModifier.In:
+                case TypeModifier.Out:
+                case TypeModifier.Ref:
                 case TypeModifier.Pointer:
                     parameterText.Append("*");
                     break;
@@ -317,17 +312,35 @@ public class ScriptGlueGenerator : IIncrementalGenerator
             parameterText.Append(", ");
         }
 
-        output.AppendLine($"    public delegate* unmanaged[Cdecl]<{parameterText}{returnType.CSharpTypeName}> {method.Name};");
+        string callingConvention = "Cdecl";
+
+#if !DEBUG
+        // Normally when calling into unmanaged code the current thread transitions
+        // from cooperative GC mode (all threads block for GC collection) to preemtive (other threads can gc independently from us).
+        // This is done to prevent long running native code (e.g. native code opens a message box) from blocking all threads because
+        // they wait for GC to happen, which can lead to problems. If we know however that the called native function is very short
+        // (short than the GC transition itself) then we can explicitly prevent the suppression.
+        // We rely on the engine (ScriptGlue.bf) to tell us that information.
+        //
+	    // A GuaranteedShortRunning function should have a VERY short runtime (< 1μs), must NEVER block, and NEVER call back into managed code!
+        //
+        // We only enable it in release builds, as it will prevent the mixed mode debugger from stepping over the managed-native-border.
+        if (method.GuaranteedShortRunning)
+        {
+            callingConvention += ", SuppressGCTransition";
+        }
+#endif
+
+        output.AppendLine($"    public delegate* unmanaged[{callingConvention}]<{parameterText}{returnType.CSharpTypeName}> {method.Name};");
     }
 
     private static void GenerateWrapper(GlueMethod method, Dictionary<string, MappedType> beefTypeToMappedType, StringBuilder output)
     {
-        // MappedType returnType = DecodeType(method.ReturnType, beefTypeToMappedType);
-        //
         List<MappedType> parameters = new();
         StringBuilder parameterText = new();
-        StringBuilder parameterConversion = new();
+        List<string> parameterConversions = new();
-        StringBuilder cleanup = new();
+        List<string> cleanups = new();
+        List<string> afterReturnCleanups = new();
         StringBuilder call = new();
 
         var (returnType, _) = DecodeType(method.ReturnType, beefTypeToMappedType);
@@ -370,33 +383,31 @@ public class ScriptGlueGenerator : IIncrementalGenerator
 
             parameterText.Append($" {param.Name}");
 
-            switch (parameterModifier)
-            {
-                case TypeModifier.In:
-                    call.Append("in ");
-                    break;
-                case TypeModifier.Out:
-                    call.Append("out ");
-                    break;
-                case TypeModifier.Ref:
-                    call.Append("ref ");
-                    break;
-            }
-
             if (parameterModifier == TypeModifier.Out && parameterType.WrapperOutConversion is not null)
             {
                 string tmpArgName = $"{param.Name}Tmp";
 
-                call.Append($"var {tmpArgName}");
+                call.Append($"&{tmpArgName}");
 
-                cleanup.Append("\t\t");
+                parameterConversions.Add($"{parameterType.CSharpTypeName} {tmpArgName} = default;");
-                cleanup.AppendFormat(parameterType.WrapperOutConversion, tmpArgName, param.Name);
+                cleanups.Add(string.Format(parameterType.WrapperOutConversion, tmpArgName, param.Name));
-                cleanup.AppendLine();
             }
             else if (parameterType.WrapperConvertInput is not null)
             {
+                switch (parameterModifier)
+                {
+                    case TypeModifier.In:
+                    case TypeModifier.Out:
+                    case TypeModifier.Ref:
+                    case TypeModifier.Pointer:
+                        call.Append("&");
+                        break;
+                }
+
                 string convertedParamName = $"{param.Name}Converted";
 
+                StringBuilder parameterConversion = new();
+                StringBuilder cleanup = new();
                 parameterConversion.AppendLine();
                 parameterConversion.Append("\t\t");
                 parameterConversion.AppendFormat(parameterType.WrapperConvertInput, convertedParamName, param.Name);
@@ -409,24 +420,41 @@ public class ScriptGlueGenerator : IIncrementalGenerator
                 }
 
                 call.Append(convertedParamName);
+                parameterConversions.Add(parameterConversion.ToString());
+                cleanups.Add(cleanup.ToString());
             }
             else
             {
-                call.Append(param.Name);
+                string paramName = param.Name;
+
+                switch (parameterModifier)
+                {
+                    case TypeModifier.In:
+                    case TypeModifier.Out:
+                    case TypeModifier.Ref:
+                        paramName = "__" + param.Name + "FixedPtr";
+                        parameterConversions.Add($"fixed ({parameterType.CSharpTypeName}* {paramName} = &{param.Name}) {{");
+                        afterReturnCleanups.Add("}");
+                        break;
+                }
+
+                call.Append(paramName);
             }
         }
 
         call.Append(");");
 
-        output.AppendLine($$"""
+        output.AppendLine(
-                                public static {{returnType.CSharpWrapperType}} {{method.Name}}({{parameterText}})
+            $$"""
-                                {{{parameterConversion}}
+            public static {{returnType.CSharpWrapperType}} {{method.Name}}({{parameterText}})
-                                    {{call}}
+            {
-                            {{cleanup}}
+                {{string.Join("\n", parameterConversions)}}
-                                    {{returnType.ReturnValueConversion}}
+                {{call}}
-                                }
+                {{string.Join("\n", Enumerable.Reverse(cleanups))}}
-
+                {{returnType.ReturnValueConversion}}
-                            """);
+                {{string.Join("\n", afterReturnCleanups)}}
+            }
+            """);
 
 
     }
@@ -435,34 +463,34 @@ public class ScriptGlueGenerator : IIncrementalGenerator
         SourceProductionContext context,
         GeneratorInput input)
     {
-         Dictionary<string, MappedType> beefTypeToMappedType = new();
+        Dictionary<string, MappedType> beefTypeToMappedType = new();
 
-         InitializeTypes(beefTypeToMappedType);
+        InitializeTypes(beefTypeToMappedType);
 
-         foreach (ITypeSymbol? mapping in input.TypeMappings)
+        foreach (ITypeSymbol? mapping in input.TypeMappings)
-         {
+        {
-             if (mapping is null)
+            if (mapping is null)
-                 continue;
+                continue;
 
-             string csharpTypeName = mapping.ToDisplayString();
+            string csharpTypeName = mapping.ToDisplayString();
 
-             foreach (AttributeData attribute in mapping.GetAttributes()
+            foreach (AttributeData attribute in mapping.GetAttributes()
-                 .Where(attribute => attribute.AttributeClass?.Name == "EngineClassAttribute"))
+                .Where(attribute => attribute.AttributeClass?.Name == "EngineClassAttribute"))
-             {
+            {
-                 string? beefTypeName = attribute.ConstructorArguments[0].Value?.ToString();
+                string? beefTypeName = attribute.ConstructorArguments[0].Value?.ToString();
 
-                 if (beefTypeName is null)
+                if (beefTypeName is null)
-                     continue;
+                    continue;
 
-                 (MappedType newMapping, _) = DecodeType(beefTypeName, beefTypeToMappedType);
+                (MappedType newMapping, _) = DecodeType(beefTypeName, beefTypeToMappedType);
-                 newMapping.CSharpTypeName = csharpTypeName;
+                newMapping.CSharpTypeName = csharpTypeName;
-             }
+            }
-         }
+        }
 
-         StringBuilder engineFunctions = new StringBuilder();
+        StringBuilder engineFunctions = new StringBuilder();
-         StringBuilder wrappers = new StringBuilder();
+        StringBuilder wrappers = new StringBuilder();
 
-         engineFunctions.Append("""
+        engineFunctions.Append("""
                        // <auto-generated />
                        using System.Collections.Generic;
 
@@ -470,9 +498,10 @@ public class ScriptGlueGenerator : IIncrementalGenerator
 
                        unsafe internal partial struct EngineFunctions
                        {
+                       
                        """);
 
-         wrappers.Append("""
+        wrappers.Append("""
                     // <auto-generated />
                     using System;
                     using System.Collections.Generic;
@@ -483,33 +512,36 @@ public class ScriptGlueGenerator : IIncrementalGenerator
 
                     internal static unsafe partial class ScriptGlue
                     {
+                    
                     """);
 
-         List<GlueMethod> methods = new List<GlueMethod>();
+        List<GlueMethod> methods = new List<GlueMethod>();
 
-         foreach (string glueFunctions in input.GlueFunctionDefinitions)
+        foreach (string glueFunctions in input.GlueFunctionDefinitions)
-         {
+        {
-             methods.AddRange(JsonSerializer.Deserialize<GlueMethod[]>(glueFunctions) ?? []);
+            methods.AddRange(JsonSerializer.Deserialize<GlueMethod[]>(glueFunctions) ?? []);
-         }
+        }
 
-         foreach (GlueMethod method in methods)
+        foreach (GlueMethod method in methods)
-         {
+        {
-             if (!input.ExistingEngineFunctionStructs.Contains(method.Name))
+            if (!input.ExistingEngineFunctionStructs.Contains(method.Name))
-             {
+            {
-                 GenerateFunctionPointer(method, beefTypeToMappedType, engineFunctions);
+                GenerateFunctionPointer(method, beefTypeToMappedType, engineFunctions);
-             }
+            }
 
-             if (!input.ExistingScriptGlueClasses.Contains(method.Name))
+            if (!input.ExistingScriptGlueClasses.Contains(method.Name))
-             {
+            {
-                 GenerateWrapper(method, beefTypeToMappedType, wrappers);
+                GenerateWrapper(method, beefTypeToMappedType, wrappers);
-             }
+            }
-         }
+        }
 
-         engineFunctions.Append("\n}");
+        engineFunctions.Append("}");
-         wrappers.Append("\n}");
+        wrappers.Append("\n}");
 
-         context.AddSource("EngineFunctions.g.cs", engineFunctions.ToString());
+        var parsedWrappers = ParseCompilationUnit(wrappers.ToString());
-         context.AddSource("ScriptGlue.g.cs", wrappers.ToString());
+
+        context.AddSource("EngineFunctions.g.cs", engineFunctions.ToString());
+        context.AddSource("ScriptGlue.g.cs", parsedWrappers.NormalizeWhitespace().ToFullString());
     }
 
     private static bool IsScriptGlueClass(