DOTS Editor 0.8.0-preview Release: New Entities Window

Looks cool, but it doesn't work at all in custom worlds for me.
It requires an EntityHierarchyDiffSystem in the default world, but I have an ICustomBootstrap that moves all default world systems to my client and server worlds, leaving the default world empty except a specified list of systems.
Since EntityHierarchyDiffSystem is private though, I can't add it to that exclusion list (also its in an editor assembly which I would have to reference in my game assembly definition).

 

Does this work for entities that are created at runtime?

 

It doesn't work with the latest entities

 

Just update to entities 0.11.1
Yes, it works with entities, created at runtime.

 

Oh, I didn't see the .1. My bad.

 

New entities window is great. The only request so far is to make the font size the same as in hierarchy window.

 

This is great! The bare minimum that I want is to able to select an entity and be highlighted in the scene or the other way around (select in scene and highlighted in entities window). If I need to add a component to enable this functionality, I'd be totally cool with that. I probably don't want all entities to be selectable.

 

My entities are mainly in ServerWorld and ClientWorld0-n, since I am using Unity NetCode. I assume this is the issue for the exception I get when selecting either of these worlds:

Spoiler: EntityHierarchyDiffSystem Exception

Code (Boo):

1. NullReferenceException: Object reference not set to an instance of an object
2. Unity.Entities.Editor.EntityHierarchyDiffSystem.Unregister (Unity.Entities.Editor.IEntityHierarchy hierarchy) (at Library/PackageCache/com.unity.dots.editor@0.8.0-preview.1/Editor/EntityHierachy/EntityHierarchyDiffSystem.cs:36)
3. Unity.Entities.Editor.EntityHierarchyWindow.OnWorldSelected (Unity.Entities.World world) (at Library/PackageCache/com.unity.dots.editor@0.8.0-preview.1/Editor/EntityHierachy/EntityHierarchyWindow.cs:123)
4. Unity.Entities.Editor.DOTSEditorWindow.OnWorldSelected (UnityEngine.UIElements.DropdownMenuAction action) (at Library/PackageCache/com.unity.dots.editor@0.8.0-preview.1/Editor/Common/DOTSEditorWindow.cs:267)
5. UnityEngine.UIElements.DropdownMenuAction.Execute () (at /Users/builduser/buildslave/unity/build/Modules/UIElements/DropdownMenu.cs:104)
6. UnityEditor.UIElements.EditorMenuExtensions+<>c__DisplayClass0_0.<PrepareMenu>b__0 () (at /Users/builduser/buildslave/unity/build/Editor/Mono/UIElements/EditorMenuExtensions.cs:35)
7. UnityEditor.GenericMenu.CatchMenu (System.Object userData, System.String[] options, System.Int32 selected) (at /Users/builduser/buildslave/unity/build/Editor/Mono/GUI/GenericMenu.cs:121)

Any pointers towards fixing this?

 

I was having a similar problem @Wobbers . I also manage my worlds with a custom bootstrap, and exclude a most systems out of my default world. To make the new tool work, I fetched the type via reflection and put it in a #if UNITY_EDITOR-segment and included it in the systems list that I inject it into my default world during bootstrap. By doing that, you don't need the reference to the editor-assembly. You can fetch it with something like this:

Code (CSharp):

1. #if UNITY_EDITOR
2. var entityHierarchyDiffSystemType = Type.GetType("Unity.Entities.Editor.EntityHierarchyDiffSystem, Unity.DOTS.Editor");
3. #endif

 

Throwing in a little bug report while I'm at it. Seems like it doesn't handle if an inspected world is destroyed during runtime. When restarting my client and server, I destroy and recreate the whole server/client worlds for simplicity, but keeping the Default World. The EntityDiffer starts throwing these whenever I destroy a world that I currently inspect:

Code (CSharp):

1. NullReferenceException: Object reference not set to an instance of an object
2. Unity.Collections.LowLevel.Unsafe.AtomicSafetyHandle.CheckWriteAndThrow (Unity.Collections.LowLevel.Unsafe.AtomicSafetyHandle handle) (at <fdd4f5823e2a41e8be8d5dcbd0bfd5b1>:0)
3. Unity.Entities.EntityManager.GetCheckedEntityDataAccess () (at Library/PackageCache/com.unity.entities@0.11.1-preview.4/Unity.Entities/EntityManager.cs:70)
4. Unity.Entities.EntityManager.GetEntityQueryMask (Unity.Entities.EntityQuery query) (at Library/PackageCache/com.unity.entities@0.11.1-preview.4/Unity.Entities/EntityManagerQuery.cs:90)
5. Unity.Entities.Editor.EntityDiffer.GetEntityQueryMatchDiffAsync (Unity.Entities.EntityQuery query, Unity.Collections.NativeList`1[T] newEntities, Unity.Collections.NativeList`1[T] missingEntities) (at Library/PackageCache/com.unity.dots.editor@0.8.0-preview.1/Editor/EntityHierachy/DataDiffers/EntityDiffer.cs:31)
6. Unity.Entities.Editor.EntityHierarchyDiffSystem+Differs.GetDiffSinceLastFrameAsync () (at Library/PackageCache/com.unity.dots.editor@0.8.0-preview.1/Editor/EntityHierachy/EntityHierarchyDiffSystem.cs:166)
7. Unity.Entities.Editor.EntityHierarchyDiffSystem.OnUpdate () (at Library/PackageCache/com.unity.dots.editor@0.8.0-preview.1/Editor/EntityHierachy/EntityHierarchyDiffSystem.cs:81)

 

Not fixed. Still hitting PlayerLoopSystemGraph.cs line 180:

Code (CSharp):

1. UnityEngine.Debug.LogError("System added twice: " + system);

The problem is you are only accounting for the parent ComponentSystemGroup. However, if a group gets added to multiple groups, then all the systems inside it hits this codepath.

 

This looks great. I've gotten tired of trying to follow my entities' hierarchy manually by clicking through the entity debugger but I do have several questions:

Is this just a hierarchy visualization of the entity debugger?

Where does Entity Window find the information for parent - child relationships on an entity?
In my custom made entities created at runtime, there are some with parent child connections but they're done so using custom dynamic buffer components and the permanent ones are connected by a blobarray lookup dictionary.

To that end, what do I need to do in order to configure my custom entities and their components at runtime such that they will show up properly as parent - child foldered entities in this new window?

Is there any way to sort entities by components / chunks like in the entity debugger?

 

I would also really like this. It seems like an important thing from a usability perspective to me. Do you have plans to do something like this, @Antoine_B?

If not I will go grab some custom solution soon I suppose.

Good work so far, looking forward to trying this out now that it supports custom bootstrap.

 

Hi, thanks for the reply.

I'm not sure I understand. I don't care about game objects in this case. I mean something like this https://forum.unity.com/threads/unofficial-package-for-entity-picking-sceneview-selection.759830/