1

/* $Id$ */

     2

     3

/** @file currency.h Functions to handle different currencies. */

     4

     5

#ifndef CURRENCY_H

     6

#define CURRENCY_H

     7

     8

#include "date_type.h"

     9

#include "strings_type.h"

    10

    11

enum {

    12

	CF_NOEURO = 0,

    13

	CF_ISEURO = 1,

    14

	NUM_CURRENCY = 29,

    15

	CUSTOM_CURRENCY_ID = NUM_CURRENCY - 1

    16

};

    17

    18

struct CurrencySpec {

    19

	uint16 rate;

    20

	char separator;

    21

	Year to_euro;

    22

	char prefix[16];

    23

	char suffix[16];

    24

	/**

    25

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

    26

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

    27

	 * 0 = prefix

    28

	 * 1 = suffix

    29

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

    30

	 *            It is not a spec from Newgrf,

    31

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

    32

	 */

    33

	byte symbol_pos;

    34

	StringID name;

    35

};

    36

    37

    38

extern CurrencySpec _currency_specs[NUM_CURRENCY];

    39

    40

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

    41

#define _custom_currency (_currency_specs[CUSTOM_CURRENCY_ID])

    42

#define _currency ((const CurrencySpec*)&_currency_specs[_game_mode == GM_MENU ? _settings_newgame.locale.currency : _settings_game.locale.currency])

    43

    44

uint GetMaskOfAllowedCurrencies();

    45

void CheckSwitchToEuro();

    46

void ResetCurrencies(bool preserve_custom = true);

    47

StringID* BuildCurrencyDropdown();

    48

byte GetNewgrfCurrencyIdConverted(byte grfcurr_id);

    49

    50

#endif /* CURRENCY_H */