src/script/api/script_date.cpp

   1 /*
   2  * This file is part of OpenTTD.
   3  * 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.
   4  * 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.
   5  * 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/>.
   6  */
   7
   8 /** @file script_date.cpp Implementation of ScriptDate. */
   9
  10 #include "../../stdafx.h"
  11 #include "script_date.hpp"
  12 #include "../../timer/timer_game_economy.h"
  13
  14 #include <time.h>
  15
  16 #include "../../safeguards.h"
  17
  18 /* static */ bool ScriptDate::IsValidDate(Date date)
  19 {
  20         return date >= 0;
  21 }
  22
  23 /* static */ ScriptDate::Date ScriptDate::GetCurrentDate()
  24 {
  25         return (ScriptDate::Date)TimerGameEconomy::date.base();
  26 }
  27
  28 /* static */ SQInteger ScriptDate::GetYear(ScriptDate::Date date)
  29 {
  30         if (date < 0) return DATE_INVALID;
  31
  32         ::TimerGameEconomy::YearMonthDay ymd = ::TimerGameEconomy::ConvertDateToYMD(::TimerGameEconomy::Date{date});
  33         return ymd.year.base();
  34 }
  35
  36 /* static */ SQInteger ScriptDate::GetMonth(ScriptDate::Date date)
  37 {
  38         if (date < 0) return DATE_INVALID;
  39
  40         ::TimerGameEconomy::YearMonthDay ymd = ::TimerGameEconomy::ConvertDateToYMD(::TimerGameEconomy::Date{date});
  41         return ymd.month + 1;
  42 }
  43
  44 /* static */ SQInteger ScriptDate::GetDayOfMonth(ScriptDate::Date date)
  45 {
  46         if (date < 0) return DATE_INVALID;
  47
  48         ::TimerGameEconomy::YearMonthDay ymd = ::TimerGameEconomy::ConvertDateToYMD(::TimerGameEconomy::Date{date});
  49         return ymd.day;
  50 }
  51
  52 /* static */ ScriptDate::Date ScriptDate::GetDate(SQInteger year, SQInteger month, SQInteger day_of_month)
  53 {
  54         if (month < 1 || month > 12) return DATE_INVALID;
  55         if (day_of_month < 1 || day_of_month > 31) return DATE_INVALID;
  56
  57         ::TimerGameEconomy::Year timer_year{ClampTo<int32_t>(year)};
  58         if (timer_year < EconomyTime::MIN_YEAR || timer_year > EconomyTime::MAX_YEAR) return DATE_INVALID;
  59
  60         return static_cast<ScriptDate::Date>(::TimerGameEconomy::ConvertYMDToDate(timer_year, month - 1, day_of_month).base());
  61 }
  62
  63 /* static */ SQInteger ScriptDate::GetSystemTime()
  64 {
  65         time_t t;
  66         time(&t);
  67         return t;
  68 }