tron@2186: /* $Id$ */
tron@2186: 
tron@2291: #include "stdafx.h"
tron@2291: #include "openttd.h"
tron@2291: #include "currency.h"
tron@2306: #include "news.h"
tron@2291: #include "variables.h"
tron@2291: #include "table/strings.h"
rubidium@4261: #include "date.h"
tron@2291: 
belugas@4377: 	//   exchange rate    prefix             symbol_pos
belugas@4377: 	//   |  separator        |     postfix   |
belugas@4377: 	//   |   |    Euro year  |       |       |    name
belugas@4377: 	//   |   |    |          |       |       |    |
belugas@4377: const CurrencySpec origin_currency_specs[NUM_CURRENCY] = {
belugas@4377: 	{    1, ',', CF_NOEURO, "\xA3", "",      0,  STR_CURR_GBP    }, // british pounds
belugas@4377: 	{    2, ',', CF_NOEURO, "$",    "",      0,  STR_CURR_USD    }, // us dollars
belugas@4377: 	{    2, ',', CF_ISEURO, "¤",    "",      0,  STR_CURR_EUR    }, // Euro
belugas@4377: 	{  200, ',', CF_NOEURO, "\xA5", "",      0,  STR_CURR_YEN    }, // yen
belugas@4377: 	{   19, ',', 2002,      "",     " S.",   1,  STR_CURR_ATS    }, // austrian schilling
belugas@4377: 	{   57, ',', 2002,      "BEF ", "",      0,  STR_CURR_BEF    }, // belgian franc
belugas@4377: 	{    2, ',', CF_NOEURO, "CHF ", "",      0,  STR_CURR_CHF    }, // swiss franc
belugas@4377: 	{   50, ',', CF_NOEURO, "",     " Kc",   1,  STR_CURR_CZK    }, // czech koruna // TODO: Should use the "c" with an upside down "^"
belugas@4377: 	{    4, '.', 2002,      "DM ",  "",      0,  STR_CURR_DEM    }, // deutsche mark
belugas@4377: 	{   10, '.', CF_NOEURO, "",     " kr",   1,  STR_CURR_DKK    }, // danish krone
belugas@4377: 	{  200, '.', 2002,      "Pts ", "",      0,  STR_CURR_ESP    }, // spanish pesetas
belugas@4377: 	{    8, ',', 2002,      "",     " mk",   1,  STR_CURR_FIM    }, // finnish markka
belugas@4377: 	{   10, '.', 2002,      "FF ",  "",      0,  STR_CURR_FRF    }, // french francs
belugas@4377: 	{  480, ',', 2002,      "",     "Dr.",   1,  STR_CURR_GRD    }, // greek drachma
belugas@4377: 	{  376, ',', 2002,      "",     " Ft",   1,  STR_CURR_HUF    }, // hungarian forint
belugas@4377: 	{  130, '.', CF_NOEURO, "",     " Kr",   1,  STR_CURR_ISK    }, // icelandic krona
belugas@4377: 	{ 2730, ',', 2002,      "",     " L.",   1,  STR_CURR_ITL    }, // italian lira
belugas@4377: 	{    3, ',', 2002,      "NLG ", "",      0,  STR_CURR_NLG    }, // dutch gulden
belugas@4377: 	{   11, '.', CF_NOEURO, "",     " Kr",   1,  STR_CURR_NOK    }, // norwegian krone
belugas@4377: 	{    6, ' ', CF_NOEURO, "",     " zl",   1,  STR_CURR_PLN    }, // polish zloty
belugas@4377: 	{    6, '.', CF_NOEURO, "",     " Lei",  1,  STR_CURR_ROL    }, // romanian Lei
belugas@4377: 	{    5, ' ', CF_NOEURO, "",     " p",    1,  STR_CURR_RUR    }, // russian rouble
belugas@4377: 	{  350, '.', CF_NOEURO, "",     " SIT",  1,  STR_CURR_SIT    }, // slovenian tolar
belugas@4377: 	{   13, '.', CF_NOEURO, "",     " Kr",   1,  STR_CURR_SEK    }, // swedish krona
belugas@4601: 	{    2, '.', CF_NOEURO, "",     " YTL",  1,  STR_CURR_YTL    }, // turkish lira
belugas@4602: 	{    1, ' ', CF_NOEURO, "",     "",      2,  STR_CURR_CUSTOM }, // custom currency
dominik@759: };
dominik@768: 
belugas@4377: /* Array of currencies used by the system */
belugas@4377: CurrencySpec _currency_specs[NUM_CURRENCY];
tron@2291: 
belugas@4377: /* get a mask of the allowed currencies depending on the year */
tron@2291: uint GetMaskOfAllowedCurrencies(void)
tron@2291: {
tron@2291: 	uint mask = 0;
tron@2291: 	uint i;
tron@2291: 
belugas@4377: 	for (i = 0; i < NUM_CURRENCY; i++) {
rubidium@4297: 		Year to_euro = _currency_specs[i].to_euro;
tron@2291: 
rubidium@4293: 		if (to_euro != CF_NOEURO && to_euro != CF_ISEURO && _cur_year >= to_euro) continue;
rubidium@4293: 		if (to_euro == CF_ISEURO && _cur_year < 2000) continue;
tron@2291: 		mask |= (1 << i);
tron@2291: 	}
peter1138@3596: 	mask |= (1 << CUSTOM_CURRENCY_ID); // always allow custom currency
tron@2291: 	return mask;
tron@2291: }
tron@2291: 
belugas@4377: /**
belugas@4377:  * Verify if the currency chosen by the user is about to be converted to Euro
belugas@4377:  **/
tron@2306: void CheckSwitchToEuro(void)
tron@2306: {
tron@2306: 	if (_currency_specs[_opt.currency].to_euro != CF_NOEURO &&
tron@2306: 			_currency_specs[_opt.currency].to_euro != CF_ISEURO &&
rubidium@4293: 			_cur_year >= _currency_specs[_opt.currency].to_euro) {
tron@2306: 		_opt.currency = 2; // this is the index of euro above.
tron@2306: 		AddNewsItem(STR_EURO_INTRODUCE, NEWS_FLAGS(NM_NORMAL, 0, NT_ECONOMY, 0), 0, 0);
tron@2306: 	}
tron@2306: }
belugas@4138: 
belugas@4377: /**
belugas@4377:  * Called only from newgrf.c.  Will fill _currency_specs array with
belugas@4377:  * default values from origin_currency_specs
belugas@4377:  **/
belugas@4377: void ResetCurrencies(void)
belugas@4377: {
belugas@4377: 	memcpy(&_currency_specs, &origin_currency_specs, sizeof(origin_currency_specs));
belugas@4377: }
belugas@4377: 
belugas@4377: /**
belugas@4377:  * Build a list of currency names StringIDs to use in a dropdown list
belugas@4377:  * @return Pointer to a (static) array of StringIDs
belugas@4377:  */
belugas@4377: StringID* BuildCurrencyDropdown(void)
belugas@4377: {
belugas@4377: 	/* Allow room for all currencies, plus a terminator entry */
belugas@4377: 	static StringID names[CUSTOM_CURRENCY_ID];
belugas@4377: 	uint i;
belugas@4377: 
belugas@4377: 	/* Add each name */
belugas@4377: 	for (i = 0; i < NUM_CURRENCY; i++) {
belugas@4377: 		names[i] = _currency_specs[i].name;
belugas@4377: 	}
belugas@4377: 	/* Terminate the list */
belugas@4377: 	names[i] = INVALID_STRING_ID;
belugas@4377: 
belugas@4377: 	return names;
belugas@4377: }