Function break_infinity::afford_arithmetic_series

pub fn afford_arithmetic_series(
    resources_available: &Decimal, 
    price_start: &Decimal, 
    price_add: &Decimal, 
    current_owned: &Decimal
) -> Decimal

If you’re willing to spend ‘resourcesAvailable’ and want to buy something with additively increasing cost each purchase (start at priceStart, add by priceAdd, already own currentOwned), how much of it can you buy?