Refactor weather switching (fixes #541)
Purges precip by default, only keeps it loaded if we're actually swapping to a rain/snow type weather.
Reduces the amount of thinkers in CEZ2 by over 20,000.
Test exe 7/22/2021: srb2rain.exe
Edited by pastel
Purges precip by default, only keeps it loaded if we're actually swapping to a rain/snow type weather.
Reduces the amount of thinkers in CEZ2 by over 20,000.
Test exe 7/22/2021: srb2rain.exe