liferegen = hp * (constitution * (1 / maxconstitution))

manaregen = liferegen - (liferegen * (maxhp - hp) / maxhp)

ok, a bit simple but maybe this is enough for you :) you might want to use some kind of interpolation. this way you can adjust how much influence each constitution upgrade has (like take an interpolation that has little influence with low const and increases later on).

Hi

I need to find a formula to implement the life and mana regeneration process. Life regeneration depends on a primary statistic (constitution) and maybe some external modifier provided by items. Mana regeneration depends on constitution, but also on life level, the more damaged you are, the lower you recover your energy. And of course, on external modifiers. the returned value must be the amount of points to regenerate per minute of game time.

Can somebody suggest me a way to calculate this?