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Fix #11938: Check infinite money setting in cases where it was missed (#11939)

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merni-ns
2024-02-01 00:41:48 +05:30
committed by GitHub
parent 363e251a10
commit ccaa383e85
4 changed files with 11 additions and 7 deletions
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10
src/economy.cpp
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@@ -836,17 +836,21 @@ static void CompaniesPayInterest()
/* Over a year the paid interest should be "loan * interest percentage",
* but... as that number is likely not dividable by 12 (pay each month),
* one needs to account for that in the monthly fee calculations.
*
* To easily calculate what one should pay "this" month, you calculate
* what (total) should have been paid up to this month and you subtract
* whatever has been paid in the previous months. This will mean one month
* it'll be a bit more and the other it'll be a bit less than the average
* monthly fee, but on average it will be exact.
*
* In order to prevent cheating or abuse (just not paying interest by not
* taking a loan we make companies pay interest on negative cash as well
* taking a loan) we make companies pay interest on negative cash as well,
* except if infinite money is enabled.
*/
Money yearly_fee = c->current_loan * _economy.interest_rate / 100;
if (c->money < 0) {
yearly_fee += -c->money *_economy.interest_rate / 100;
Money available_money = GetAvailableMoney(c->index);
if (available_money < 0) {
yearly_fee += -available_money * _economy.interest_rate / 100;
}
Money up_to_previous_month = yearly_fee * TimerGameEconomy::month / 12;
Money up_to_this_month = yearly_fee * (TimerGameEconomy::month + 1) / 12;