OpenTTD
Functions | Variables
date_func.h File Reference

Functions related to dates. More...

#include "date_type.h"

Go to the source code of this file.

Functions

void SetDate (Date date, DateFract fract)
 Set the date.
void ConvertDateToYMD (Date date, YearMonthDay *ymd)
 Converts a Date to a Year, Month & Day.
Date ConvertYMDToDate (Year year, Month month, Day day)
 Converts a tuple of Year, Month and Day to a Date.
static bool IsLeapYear (Year yr)
 Checks whether the given year is a leap year or not.

Variables

Year _cur_year
 Current year, starting at 0.
Month _cur_month
 Current month (0..11)
Date _date
 Current date in days (day counter)
DateFract _date_fract
 Fractional part of the day.
uint16 _tick_counter
 Ever incrementing (and sometimes wrapping) tick counter for setting off various events.

Detailed Description

Functions related to dates.

Definition in file date_func.h.

Function Documentation

void ConvertDateToYMD ( Date  date,
YearMonthDay ymd 
)
Date ConvertYMDToDate ( Year  year,
Month  month,
Day  day 
)
static bool IsLeapYear ( Year  yr)
inlinestatic

Checks whether the given year is a leap year or not.

Parameters
yrThe year to check.
Returns
True if yr is a leap year, otherwise false.

Definition at line 32 of file date_func.h.

Referenced by ConvertDateToYMD(), ConvertYMDToDate(), GetGlobalVariable(), and OnNewYear().

void SetDate ( Date  date,
DateFract  fract 
)

Set the date.

Parameters
dateNew date
fractThe number of ticks that have passed on this date.

Definition at line 37 of file date.cpp.

References _cur_month, _cur_year, _date, _date_fract, ConvertDateToYMD(), DAY_TICKS, YearMonthDay::month, and YearMonthDay::year.

Referenced by AfterLoadGame(), ClickChangeDateCheat(), and SetStartingYear().