Malakim tile changing - how does it work?

Been looking through the python files for the code related to tile changing - x becomes arid in 20 turns etc. I've found the routines for removing roads, changing roads to trails, hell terrain plot bonuses but that's it. Where's it hiding?

It's in the dll (C++ code)
I don't remember the place, but if you look for temperature and humidity values, you'll find the functions.

Thanks, didn't know about those functions, I'll take a good look at them. I can make sense of much of the python, but C++ is beyond what I know!

Great work on this modmodmodmod btw