Get Components attached to an Entity from reference to that Entity in a Job

In my project, I have entities that only need to change the data on a single other entity.

The first entity processes some data before passing it to the second one, which process that data and passes it to a third, and so on - in a sort of assembly line fashion.

Currently, on my first entity I have an Output component. This stores a reference to the second entity, which has an Input component attached to it.

I haven't tried it, but I seems I could store a reference to the Input component rather than a reference to the second entity itself. The problem is I also need to check if that second entity has other components attached to it (such as a blocked component that stops it accepting input and processing)

So, while inside a job, is possible to retrieve the components attached to the second entity, just by using a reference to it that is stored in the first entity's Output component?


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You can use ComponentDataFromEntity<T> inside your jobs. It allows you can access any components by its entity.

First you should create ComponentDataFromEntity<T> by using ComponentSystem.GetComponentDataFromEntity() method then pass it into your job.

https://docs.unity3d.com/Packages/c...GetComponentDataFromEntity__1_System_Boolean_

https://docs.unity3d.com/Packages/c...taFromEntity-1.html?q=ComponentDataFromEntity