This is possibly a silly idea, but you could sweep a line trace from the centre out in a circle and every time it hits an actor of the right class you add it to the array.
Or move an object along the circle and use the overlap event.
This is possibly a silly idea, but you could sweep a line trace from the centre out in a circle and every time it hits an actor of the right class you add it to the array.
Or move an object along the circle and use the overlap event.