Lambda version of IJobParallelFor?

I pretty much never had a usecase for IJob since all the logic I ever needed to optimise were loops.

Will a coming version of entities support a lambda API for this? Or am I expected to design all my loop logic around entities?

I just want to be able to crunch numbers that aren't necessarily tied to any entity.

 

https://docs.unity3d.com/Packages/com.unity.entities@0.7/manual/ecs_job_withcode.html

I think you're looking for Job.WithCode lambda expression.

 

Ah see there's a note in the manual saying that Job.WithCode is equivalent to an IJob and at the bottom of the example in the link that you sent me it even says that the only way to run a scheduled job currently is still to directly implement IJobParallelFor and schedule that.

So I'm aware what we can and can't do I'm more asking about whether Unity are basically hinting that they only want jobs to work on arrays of entities that satisfy an entity query or if purely mathematical parallel jobs that have no interaction with entity data will eventually come in a later release.

 

So in short, should I keep my math code in Job.WithCode in anticipation of some eventual Job.WithParallelCode method or refactor my data to be kept in entities as well so I can use Entities.ForEach?

 

You can still do IJobParallelFor inside your system, but you have to manually handle dependency. so Dependency=new MyParallelJob.Schedule(x,x,Dependency) should work.

 

Whoa, that's brilliante. I didn't know it existed. ;w;

 

Ah I see - honestly not sure how about how Unity intends us to go into

Hmm honestly not quite sure on the Unity side, but if they introduce something similar to IJobParallelFor struct interface for their fluent API it would be quite nice to work with on a high level.

So as for refactoring the data - I was in a similar situation where I just end up storing pieces of data on various entities to enable updates on all of them in parallel (that ended up fitting my problem space much better).