/* $Id$ */ /* * This file is part of OpenTTD. * 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. * 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. * 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/>. */ /** @file currency.h Functions to handle different currencies. */ #ifndef CURRENCY_H #define CURRENCY_H #include "date_type.h" #include "strings_type.h" static const int CF_NOEURO = 0; static const int CF_ISEURO = 1; static const uint NUM_CURRENCY = 29; static const int CUSTOM_CURRENCY_ID = NUM_CURRENCY - 1; struct CurrencySpec { uint16 rate; char separator[8]; Year to_euro; char prefix[16]; char suffix[16]; /** * The currency symbol is represented by two possible values, prefix and suffix * Usage of one or the other is determined by symbol_pos. * 0 = prefix * 1 = suffix * 2 = both : Special case only for custom currency. * It is not a spec from Newgrf, * rather a way to let users do what they want with custom curency */ byte symbol_pos; StringID name; }; extern CurrencySpec _currency_specs[NUM_CURRENCY]; /* XXX small hack, but makes the rest of the code a bit nicer to read */ #define _custom_currency (_currency_specs[CUSTOM_CURRENCY_ID]) #define _currency ((const CurrencySpec*)&_currency_specs[GetGameSettings().locale.currency]) uint GetMaskOfAllowedCurrencies(); void CheckSwitchToEuro(); void ResetCurrencies(bool preserve_custom = true); StringID *BuildCurrencyDropdown(); byte GetNewgrfCurrencyIdConverted(byte grfcurr_id); #endif /* CURRENCY_H */