I'm trying to make zombies near blind

[AllisonOliveira]

So, I want to make an experience where is always night time, with pitch black nights, and I wanted the zombies to have as much as a drawback in sight as I will. I want them to have a much more limited vision than the poor option from the vanilla game, but give them the ability to detect lantern light, if I point it at them for example. Is this even possible? I don't want a private tutorial or someone to teach me everything I need to know, I just need a north so I can continue following that direction. I never coded anything before and that would be my first mod, so I'm very lost and don't have a clue where to start. Any help would be very much appreciated!