Best way to do In-Editor processing scripts with Unity ECS/Burst/Job system ?

Hello, I am interested in performant editor scripts. What is the recommended/most elegant way to update systems for in-Editor scripts?
Thanks.

 

Just add a [AlwaysUpdate System] tag and the system will be loaded in the editor (assuming you use default world initialization otherwise you'll have to create and set it up yourself.)

By default unity hybrid and rendering systems run in editor.

You can check out the initialization in

Unity.Entities.Hybrid\Injection\AutomaticWorldBootstrap.cs
Unity.Entities.Hybrid\Injection\DefaultWorldInitialization.cs

-edit-

the actual editor world setup is created from game object entity

Code (CSharp):

1.         void Initialize()
2.         {
3.             DefaultWorldInitialization.DefaultLazyEditModeInitialize();
4.             // ...
5.         }

So if you want to setup the systems to run in the editor without having a GameObjectEntity in your scene just call DefaultWorldInitialization.DefaultLazyEditModeInitialize() yourself.

 

Here is my working solution

Code (CSharp):

1.  [ExecuteAlways]
2.     public class NoiseEditor : MonoBehaviour
3.     {
4.         NoiseSystem _noiseSystem;
5.  
6.         public void OnEnable()
7.         {
8.             Debug.Log("---------------------------------------------------");//helps see wich logs are from the last compile
9.             if (EditorApplication.isPlaying || _noiseSystem != null) return;
10.  
11.             DefaultWorldInitialization.DefaultLazyEditModeInitialize();//boots the ECS EditorWorld
12.  
13.             _noiseSystem = World.Active.GetOrCreateSystem<NoiseSystem>();
14.  
15.             EditorApplication.update += () => _noiseSystem.Update();//makes the system tick properly, not every 2 seconds !
16.         }
17.  
18.         public void OnDestroy()
19.         {
20.             //extra safety against post-compilation problems (typeLoadException) and spamming the console with failed updates
21.             if (!EditorApplication.isPlaying)
22.                 EditorApplication.update -= () => _noiseSystem.Update();
23.         }