Context from tahuy on discord

Campfires where if you leave them, you freeze (like in my low effort map Mountaineering)
So like a timer starts when you leave the zone. I haven't found a good way to do it, or I have to put 6 zones around the first zone every time which is a pain

now that i think about it, that actually would be extremely useful for a lot of other stuff that i would use:
making a quest in a zone, if you leave it resets the quests variables etc so you can do it again later
making actions for when you jump, instead of putting a zone up in the air you could put a zone on the ground that does stuff when you leave it, which would be more precise in a lot of ways
elytra zone that you can't leave or it'll do something if you leave it
and the campfire stuff i talked about which could be useful to do timers that start when you leave (and not when you go through a zone, which again, could be more precise)