src/script/api/script_date.cpp

   1 /* $Id: script_date.cpp 26307 2014-02-06 19:50:34Z zuu $ */
   2
   3 /*
   4  * This file is part of OpenTTD.
   5  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
   6  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   7  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
   8  */
   9
  10 /** @file script_date.cpp Implementation of ScriptDate. */
  11
  12 #include <time.h>
  13 #include "../../stdafx.h"
  14 #include "script_date.hpp"
  15 #include "../../date_func.h"
  16
  17 #include "../../safeguards.h"
  18
  19 /* static */ bool ScriptDate::IsValidDate(Date date)
  20 {
  21         return date >= 0;
  22 }
  23
  24 /* static */ ScriptDate::Date ScriptDate::GetCurrentDate()
  25 {
  26         return (ScriptDate::Date)_date;
  27 }
  28
  29 /* static */ int32 ScriptDate::GetYear(ScriptDate::Date date)
  30 {
  31         if (date < 0) return DATE_INVALID;
  32
  33         ::YearMonthDay ymd;
  34         ::ConvertDateToYMD(date, &ymd);
  35         return ymd.year;
  36 }
  37
  38 /* static */ int32 ScriptDate::GetMonth(ScriptDate::Date date)
  39 {
  40         if (date < 0) return DATE_INVALID;
  41
  42         ::YearMonthDay ymd;
  43         ::ConvertDateToYMD(date, &ymd);
  44         return ymd.month + 1;
  45 }
  46
  47 /* static */ int32 ScriptDate::GetDayOfMonth(ScriptDate::Date date)
  48 {
  49         if (date < 0) return DATE_INVALID;
  50
  51         ::YearMonthDay ymd;
  52         ::ConvertDateToYMD(date, &ymd);
  53         return ymd.day;
  54 }
  55
  56 /* static */ ScriptDate::Date ScriptDate::GetDate(int32 year, int32 month, int32 day_of_month)
  57 {
  58         if (month < 1 || month > 12) return DATE_INVALID;
  59         if (day_of_month < 1 || day_of_month > 31) return DATE_INVALID;
  60         if (year < 0 || year > MAX_YEAR) return DATE_INVALID;
  61
  62         return (ScriptDate::Date)::ConvertYMDToDate(year, month - 1, day_of_month);
  63 }
  64
  65 /* static */ int32 ScriptDate::GetSystemTime()
  66 {
  67         time_t t;
  68         time(&t);
  69         return t;
  70 }