How do I test if a DynamicBuffer IBufferElementDat exist on an entity or not?

Hello,

I am using Dynamic Buffers, and they work acceptable. I just can't test if a DynamicBuffer exists or not to do the following code:

DynamicBuffer<TriggerIgnoreBufferElement> beA = World.DefaultGameObjectInjectionWorld.EntityManager.GetBufferfrome <TriggerIgnoreBufferElement>(entityA);

It throws an error when TriggerIgnoreBufferElement is not on the entity, and not all entities who have triggers need things ignored, so not every entity will have this array.

All I need is to be able to test if the Entity has a DynamicBuffer attached.

Traditional Unity has checks like this under naming convention hasBuffer().

Thank you,
Jim

 

I haven’t used the latest ECS but I imagine you
get an EntityManager and construct the EntityQueries from there

 

Looks like hasComponent will do the trick.

TY tertle

 

Either use HasComponent as mentioned above, or create job, which filters query with/without buffer.