How to make a character Detect when infront of NPC script?

i am currently making a copy of Notoriety guard, and all i need left is realism, i made a hat with par that when touched by player hes detected with mask on, but the problem is that you can do that THROUGH walls, and the NPC's MOVE, so if they face a wall with person with mask on other side, they are detected, which doesn't happen in real life or Notoriety! i was thinking this script:

if see player connect
if player.Masked.Value == true then
if hat touched by something else too then not detected
if person is only thing touched by hat (sight) then detected

the problem with that is if there is a prt like for example NEXT to the player not infront of it, then player doesnt get detected, which doesnt make sense, so how can i do this? remember, i want a script that senses a player in front (i already did using an accesory with Handle with attachment in front of NPC) also detecting if that masked player is BEHIND SOMETHING or not. please help, thanks :)

hello, iv been looking for questions to answer and this is a good one, remember me? i answered some of your previous questions :) anyways, so how about the script make it so it also detects if there is a part in front of HIM, just copy the accesory inside NPC and put it in player, u can use remote event which i KNOW u know how, or you can put in that script to find that players sight sccesory and see if its touched, hope this helps :)