Unreal has math functions built in- though it isn’t exactly a curve, you can sample it just the same.
int32 GetTotalExpCost(int32 Level)
{
// y=x^2
//return FMath::Pow(Level, 2.0);
// y = log_2(Level)
//return FMath::Log2(static_cast<double>(Level + 1));
// y = log_3(Level)
//return FMath::LogX(3.0, Level + 1);
}
int32 GetNextLevelExpCost(int32 Level)
{
return GetTotalExpCost(Level) - GetTotalExpCost(Level - 1);
}
The +1 is only necessary if you’re starting at level 0 and are using a logarithm.
I wrote this in cpp, but the exactly same can be done in blueprint via the exact same methods:
