In remembrance of all those people who used jump boots to cross lava unaware of an issue c*ders wouldn't fix....
EDIT: This is now a lava and weather immunities refactor:
Weather immunities are now status traits since they have a multitude of sources (especially for lava) which might conflict with one another otherwise.
The lava burn_stuff proc has also been been refactored in different procs, mostly because of that snowdin subtype with inconsistent, old checks.
Weather datums should now use can_weather_act instead of weather_act to check if something can be affected by weather or not, as they should.
All movables can protect contained mobs if they have the relative weather immunity traits. This works at any contents depth.
No more snowflake weather_protection variable for closets.
Removed the weather_immunities list from living mobs (simple animals still have it but it's only for traits assignment on init because way too many child types lack the immunities of their parents).
Removed some unused defines.
Renamed some variables as per guidelines.
It has been tested.
And yea, jump boots fixed because that's the original scope of this PR.
(Initially just made throwing make you fire immune, that was blocked because it breaks perma stuff, instead it ended up be a refactor to make jumpboots usable with weather immumnity stuff
This folder is full of #define statements. They are similar to constants,
but must come before any code that references them, and they do not take up
memory the way constants do.
The values in this folder are NOT options. They are not for hosts to play with.
Some of the values are arbitrary and only need to be different from similar constants;
for example, the genetic mutation numbers in genetics.dm mean nothing, but MUST be distinct.
It is wise not to touch them unless you understand what they do, where they're used,
and most importantly,
how to undo your changes if you screw it up.
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