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Location: cpp/openttd-patchpack/source/src/ai/api/ai_date.cpp - annotation
r12029:5b077ec055c0
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(svn r16441) -Codechange: new class SpecializedVehicle used as superclass for all vehicle types
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/** @file ai_date.cpp Implementation of AIDate. */
#include "ai_date.hpp"
#include "../../date_func.h"
/* static */ int32 AIDate::GetCurrentDate()
{
return ::_date;
}
/* static */ int32 AIDate::GetYear(int32 date)
{
if (date < 0) return -1;
::YearMonthDay ymd;
::ConvertDateToYMD(date, &ymd);
return ymd.year;
}
/* static */ int32 AIDate::GetMonth(int32 date)
{
if (date < 0) return -1;
::YearMonthDay ymd;
::ConvertDateToYMD(date, &ymd);
return ymd.month + 1;
}
/* static */ int32 AIDate::GetDayOfMonth(int32 date)
{
if (date < 0) return -1;
::YearMonthDay ymd;
::ConvertDateToYMD(date, &ymd);
return ymd.day;
}
/* static */ int32 AIDate::GetDate(int32 year, int32 month, int32 day_of_month)
{
if (month < 1 || month > 12) return -1;
if (day_of_month < 1 || day_of_month > 31) return -1;
if (year < 0 || year > MAX_YEAR) return -1;
return ::ConvertYMDToDate(year, month - 1, day_of_month);
}
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