(svn r13549) [NewGRF_ports] -Change: Make recolouring of groundtile (0x0f80) specific to NewGRF_ports only.
Also base groundsprite on airport_tile of station. This prevents mixed colour groundtiles in an airport.
/* $Id$ */
/** @file date_func.h Functions related to dates. */
#ifndef DATE_FUNC_H
#define DATE_FUNC_H
#include "date_type.h"
extern Year _cur_year;
extern Month _cur_month;
extern Date _date;
extern DateFract _date_fract;
void SetDate(Date date);
void ConvertDateToYMD(Date date, YearMonthDay *ymd);
Date ConvertYMDToDate(Year year, Month month, Day day);
#endif /* DATE_FUNC_H */