The idea is a brick wich is invisable, it actually is like a node, it senses if another of that brick is close to it without a brick being in middle of them.
So a brick that can sense players or bots, at best it would be if you can pick what it must detect.
That would add a feature to make better RPG's with bots, or Zombie games, Or even a cops and robbers with bots as dogs.