headwear check

[SmokeyGum]

I am thinking about making a mod that will allow the NPC to make a comment about the player wearing a hat (specifically inside buildings). How difficult would this be?

[Jokerine]

Probably not too difficult. There are already conditions you can use (IsInInterior and GetEquipped) to check if the player is indoors while wearing a hat. May be a bit trickier to check for mod-added hats, though. Perhaps NVSE has some scripting for that? Otherwise you'd have to use GetEquipped and check for all the different pieces of headgear in the vanilla game.

[Ladez]

GetEquippedObject from NVSE is what you want. More specifically:

If NPC.GetEquippedObject 0
    ; do your spells and incantations here
EndIf

0 is the equip slot ID for the head. You can see a full list of IDs here.