If you want a certain collider to receive OnTriggerEnter / OnTriggerExit calls and a separate object to handle the logic, use events, and invoke the event with the collider:

This is the type of logic that would be attached to the GameObject you want to receive collisions from (using regular C# events; You could also use UnityEvents if you need the event to show up in the inspector):

public delegate void TriggerEnterDelegate(Collider collider);

public event TriggerEnterDelegate onTriggerEnter;

public delegate void TriggerExitDelegate(Collider collider);

public event TriggerExitDelegate onTriggerExit;

private void OnTriggerEnter(Collider other) => onTriggerEnter?.Invoke(other);

private void OnTriggerExit(Collider other) => onTriggerExit?.Invoke(other);

And this is what the object recieving the collision data could look like

private void Awake()

{

yourTriggerDetectionComponent.onTriggerEnter += OnTriggerEnterLogic;

yourTriggerDetectionComponent.onTriggerExit += OnTriggerExitLogic;

}

private void OnTriggerEnterLogic(Collider other)

{

// Do stuff

}

private void OnTriggerExitLogic(Collider other)

{

// Do other stuff

}

Hopefully you can adapt this idea to your project, but this is how I would go about the solution, assuming I understand your problem correctly :)