Change Comparator and Creeking Heart Interaction to act as vision detector

Right now, the way Comparator interact with Creeking heart is that the comparator will constantly output a signal strength based on how far the Creeking is to the heart. Because Creekings only spawns at night, and them being mobs makes them harder to manipulate, the Creeking heart really just seem like a glorified daylight sensor to me. I think it would be much more interesting to use if the interaction is changed to only output signals when a player is actively looking at the Creeking. This way, the Creeking can act more as a vision detector. While there has been designs that put Creekings in water and put tripwires above them to achive similar effects, it is both unintuitive and too clunky to use. Simplifying this contraption could be a game changer.

(Also, maybe make domesticated Creeking heart always spawn Creeking on top of the pillar structure)