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Fix: Calculation of initial engine age was inaccurate. (#11660)

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Engine age in months was calculated as the difference in days / 32, instead of the actually difference in months. This would result in engines being artificially younger if a game was started at a later date.
This commit is contained in:
Peter Nelson
2023-12-31 15:47:32 +00:00
committed by GitHub
parent 7124b4eef1
commit 934545a674
3 changed files with 11 additions and 5 deletions
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3
src/saveload/oldloader_sl.cpp
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@@ -399,6 +399,7 @@ static bool FixTTOEngines()
}
TimerGameCalendar::Date aging_date = std::min(TimerGameCalendar::date + CalendarTime::DAYS_TILL_ORIGINAL_BASE_YEAR, TimerGameCalendar::ConvertYMDToDate(2050, 0, 1));
TimerGameCalendar::YearMonthDay aging_ymd = TimerGameCalendar::ConvertDateToYMD(aging_date);
for (EngineID i = 0; i < 256; i++) {
int oi = ttd_to_tto[i];
@@ -407,7 +408,7 @@ static bool FixTTOEngines()
if (oi == 255) {
/* Default engine is used */
TimerGameCalendar::date += CalendarTime::DAYS_TILL_ORIGINAL_BASE_YEAR;
StartupOneEngine(e, aging_date, 0);
StartupOneEngine(e, aging_ymd, 0);
CalcEngineReliability(e, false);
e->intro_date -= CalendarTime::DAYS_TILL_ORIGINAL_BASE_YEAR;
TimerGameCalendar::date -= CalendarTime::DAYS_TILL_ORIGINAL_BASE_YEAR;