Edit mode systems?

I was hoping to implement an edit-time preview for the tween library I'm building but I've come a bit unstuck - any help would be greatly appreciated.

So far I've been able to create a new world and add entities. Despite having [ExecuteAlways] everywhere though, I'm not sure how to get the systems running? If I manually use World.Active.GetOrCreateManager on each individual system and then manually call Update (via an editor coroutine?), I think that essentially achieves it. However I have to believe there's a better way - likely something already built-in that takes into account update order etc?

I call

ScriptBehaviourUpdateOrder.UpdatePlayerLoop(World.Active);

after creating the edit mode World. I also don't see any entities after creating them but I assume that's a related issue of the RenderMesh system not updating either?

Many thanks!

 

You have to wrap your component or shared component in ComponentDataWrapper<> or SharedComponentDataWrapper<> that way your components will trigger the involved systems in edit mode.

 

Unfortunately I'm still having no luck. I think I'm misunderstanding something. This is the simplest test I can come up with - code on a monobehaviour on a GameObject (which is gross and never cleaned up):

Code (CSharp):

1.     private void OnValidate()
2.     {
3.         if (World.Active == null)
4.         {
5.             World world = new World("EditorPreview");
6.             World.Active = world;
7.             ScriptBehaviourUpdateOrder.UpdatePlayerLoop(World.Active);
8.         }
9.  
10.         EntityManager entityManager = World.Active.GetOrCreateManager<EntityManager>();
11.         // Create player archetype
12.         EntityArchetype ea = entityManager.CreateArchetype(
13.             typeof(Position), typeof(Rotation), typeof(Scale), typeof(RenderMesh));
14.  
15.         Entity previewEntity = entityManager.CreateEntity(ea);
16.         entityManager.SetComponentData(previewEntity, new Rotation() { Value = Quaternion.Euler(new Vector3(0f, 0f, 0f)) });
17.         entityManager.SetComponentData(previewEntity, new Scale() { Value = Vector3.one });
18.         entityManager.SetComponentData(previewEntity, new Position() { Value = Vector3.zero });
19.         entityManager.SetSharedComponentData(previewEntity, new RenderMesh() { mesh = meshToUse, material = material });
20.     }

What I'm trying to achieve: Upon selected a gameobject (hybrid mode) or a scriptable object of the serialized animation (pure mode), create an entity dynamically in the scene at edit time and have the systems run as they would at play time. The tween entities I create are pure (no gameobjects) - do I need to be creating a gameobject & changing all my AddComponent calls to add the wrapper versions of all the components or something?

 

Did you ever figure this out @Timboc? I'm setting up my editor world using

DefaultWorldInitialization.DefaultLazyEditModeInitialize()

, and while all my systems are there, none of them run OnUpdate except once when clicking off the scene somewhere (per click). I can manually update some systems like the ones I created if necessary and that works fine, but I can't do that with some internal systems like RenderBoundsUpdateSystem for translation changes. So I was wondering if there was a way to get all systems in the editor world to update as they would in play mode. I have also tried

ScriptBehaviourUpdateOrder.AddWorldToPlayerLoop()

, but this didn't help either. I'll note that the other person I'm working on the same project with does not have this issue with the same code, their systems update fine after creating the world. Maybe just a settings issue, just looking for some insight in case I missed any steps.

 

did you try https://docs.unity3d.com/Packages/c...ity.Entities.AlwaysUpdateSystemAttribute.html ?

 

Afaik that doesn't work (unless you happen to have a subscene open or some similar condition).
@dorianvasile I did get it working. The main thing is to call

EditorApplication.QueuePlayerLoopUpdate();

on

EditorApplication.update

. I don't know if this is the "correct" solution but is working for me.
As for adding systems to the world I currently use this:

Code (CSharp):

1. DefaultWorldInitialization.DefaultLazyEditModeInitialize();
2. var MyWorld = World.DefaultGameObjectInjectionWorld;
3. List<System.Type> systems = UnityEditor.TypeCache.GetTypesDerivedFrom(typeof(ComponentSystemBase)).Where(x => x != null && !string.IsNullOrEmpty(x.Namespace) && x.Namespace.StartsWith(@"My.Namespace")).ToList();
4. DefaultWorldInitialization.AddSystemsToRootLevelSystemGroups(MyWorld, systems);

Please note this is not an official response and this is likely somewhat out of date.
i.e. looking at this now I don't think this would capture ISBs.
I welcome any advice on how to improve this.

 

I was messing around with edit mode tests. It really only creates systems that you explicitly add to the world. I think this is very interesting because you have perfect control over the systems created, thus can test system depenencies/races exactly.

I use play mode tests to test systems executing as they are during "normal" unity operation.

That said, I always wished I had a way to load everything into an edit mode test. Maybe Timboc's reply above is the answer? I'll give it a try!

For running update in tests, I took a different approach. Created a [UnityTest] with an IEnumerator return value. and inside a loop with a world.Update() and a yield return.

see this post for an example: https://forum.unity.com/threads/nat...ed-up-by-burst-compiler.1049879/#post-6802574

 

Thanks so much @Timboc! Calling

EditorApplication.QueuePlayerLoopUpdate();

was the only thing I was missing. Called that method instead of individual systems Update like I was before on

EditorApplication.update

like you said. Worked great since it updates my systems and all the internal ones I couldn't call.

I'm not sure if I have things setup differently, but my systems are being added without the code snippet you posted. I just have this flag on my editor only systems

[WorldSystemFilter(WorldSystemFilterFlags.Editor)]

and they are automatically added to my editor world. (Do still need

DefaultWorldInitialization.DefaultLazyEditModeInitialize();

of course)