Multiple distinctive trigger colliders for a single entity

Unity Engine
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1

I want to recreate an actor for a physarum transport model (physarum - Sage Jenson) so I need my entity to have three “sensors” in different locations. And I need to get number of “food particles” within volumes of these sensors.

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And I cannot understand what’s the right architecture for it?
What I see is having three trigger colliders (physics shapes) each for a separate “layer” (left-center-right) and “food particles” are duplicated for every layer (left-center-right)… and this doesn’t look like the proper solution, also it’s not easy for modification a number of sensors.
Any ideas?

2

I’m curious how others recommend handling this, but here’s my inexperienced idea:
Create a batch PointDistance job and pass it three PointDistanceInput structs (what I suspect to be the OverlapSphere equivalent) per entity. Then iterate the results 3 at a time and map whatever data to the respective entity. The physics samples has an example which could get you part way there.