1 /* $Id$ */

     2 

     3 #ifndef CURRENCY_H

     4 #define CURRENCY_H

     5 

     6 enum {

     7 	CF_NOEURO = 0,

     8 	CF_ISEURO = 1,

     9 	NUM_CURRENCY = 28,

    10 	CUSTOM_CURRENCY_ID = NUM_CURRENCY - 1

    11 };

    12 

    13 typedef struct {

    14 	uint16 rate;

    15 	char separator;

    16 	Year to_euro;

    17 	char prefix[16];

    18 	char suffix[16];

    19 	/**

    20 	 * The currency symbol is represented by two possible values, prefix and suffix

    21 	 * Usage of one or the other is determined by symbol_pos.

    22 	 * 0 = prefix

    23 	 * 1 = suffix

    24 	 * 2 = both : Special case only for custom currency.

    25 	 *            It is not a spec from Newgrf,

    26 	 *            rather a way to let users do what they want with custom curency

    27 	 */

    28 	byte symbol_pos;

    29 	StringID name;

    30 } CurrencySpec;

    31 

    32 

    33 extern CurrencySpec _currency_specs[NUM_CURRENCY];

    34 

    35 // XXX small hack, but makes the rest of the code a bit nicer to read

    36 #define _custom_currency (_currency_specs[CUSTOM_CURRENCY_ID])

    37 #define _currency ((const CurrencySpec*)&_currency_specs[_opt_ptr->currency])

    38 

    39 uint GetMaskOfAllowedCurrencies(void);

    40 void CheckSwitchToEuro(void);

    41 void ResetCurrencies(void);

    42 StringID* BuildCurrencyDropdown(void);

    43 byte GetNewgrfCurrencyIdConverted(byte grfcurr_id);

    44 

    45 #endif /* CURRENCY_H */