Fertility scale with lifespan

have you ever have pawns that have ridiculous lifespan, but still losing fertility at the same rate as human?

worry no more!

with this mod, the fertility cut-off age will scale up(and down) with pawn lifespan, given that they are defined as adult by their life-stage

Example

Jorna is 200 year old, she have 1000 year of life expectancy due to whatever mad science you do(or she an alien race)

with vanilla rimworld, Jorna would start losing fertility at 28, and lose it completely at 50.

with this mod, Jorna would have 100% fertility, and will be 100% until she reached 35% of her total lifespan, which is 350.

Technical info

this mod would check if pawn have more(or less) life expectancy than 80 which is baseline human.

if so, it then check if pawn current age is below 62.5% of their lifespan(or 35% for female pawn)then it check if pawn is classed as adult by their lifestage, Human classed as adult at 18, this vary based on alien race if you use HAR but generally it set at 18. if pawn pass all that check, their fertility would be at 100%, and will stay so until 62.5% of their life span(or 35% for female).