Build script project from editor

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

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
 {
@@ -227,5 +230,20 @@ namespace GlitchyEditor
 				IdeAdapter.OpenScriptProject();
 			}
 		}
+
+		/// Rebuilds the C# scripts.
+		public BuildScriptsBackgroundTask BuildScripts()
+		{
+			BuildScriptsBackgroundTask task = new .(EditorApp.Instance.Settings.ScriptSettings.DotNetExecutablePath, EditorApp.Instance.EditorLayer.CurrentProject, false){ DeleteWhenEnded = true };
+
+			EditorApp.Instance.BackgroundTaskManager.StartBackgroundTask(task);
+
+			return task;
+		}
+
+		public void ReloadScripts()
+		{
+			ScriptEngine.ReloadAssemblies(retainScriptData: true);
+		}
 	}
 }

GlitchyEditor/src/EditorLayer.bf

@@ -820,10 +820,26 @@ 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 && EditorApp.Instance.Settings.ScriptSettings.RebuildOnPlay)
+			{
+				var task = _editor.BuildScripts();
+				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 +1536,15 @@ namespace GlitchyEditor
 			
 			if(ImGui.BeginMenu("Tools", true))
 			{
-				if(ImGui.MenuItem("Reload Scripts"))
-					ScriptEngine.ReloadAssemblies(retainScriptData: true);
+				if(ImGui.MenuItem("Build Scripts", "Ctrl+B"))
+					_editor.BuildScripts();
+
+				ImGui.AttachTooltip("Compiles 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 +1647,17 @@ 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/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)
 						{
@@ -74,7 +74,9 @@ 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;
-		
-					if (task.DeleteWhenEnded)
-					{
-						delete task;
-					}
+					endStateFlag = .RunOnFinished;
 				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 +1,131 @@
+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 String _buildLog = new .() ~ delete _;
+
+	private SpawnedProcess _process ~ delete _;
+
+	public this(StringView dotnetPath, Project project, bool releaseBuild)
+	{
+		_dotnetPath = dotnetPath;
+		_project = project;
+		_releaseBuild = releaseBuild;
+	}
+
+	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);
+
+		// -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 $"build -c {(_releaseBuild ? "Release" : "Debug")}");
+
+		_process = new SpawnedProcess();
+
+		if (_process.Start(processInfo) case .Ok)
+		{
+			FileStream outputStream = scope FileStream();
+			_process.AttachStandardOutput(outputStream);
+
+			StreamReader outputReader = scope .(outputStream);
+			
+			while (!_process.HasExited)
+			{
+				outputReader.ReadToEnd(_buildLog).IgnoreError();
+			}
+
+			_process.WaitFor(-1);
+
+			if (_isAborting)
+			{
+				Log.EngineLogger.Warning($"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;
 
@@ -239,6 +242,19 @@ class IdeInstallation
 [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 +270,13 @@ class ScriptSettings
 	private bool _lookedForVs = false;
 	private bool _lookedForRider = false;
 
+	
+	[Setting("Tools", "Rebuild scripts on play", "If active, the scripts will be rebuilt every time the user presses play."), BonInclude]
+	public bool RebuildOnPlay = true;
+
+	[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 +298,18 @@ 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")]
@@ -282,8 +317,17 @@ 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!()))
 		{
 			using (EnterAndGetIdeInstallations(let installations))
@@ -327,13 +371,71 @@ 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

@@ -420,6 +420,9 @@ 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>();