1

/* $Id$ */

     2

     3

/** @file signs.h */

     4

     5

#ifndef SIGNS_H

     6

#define SIGNS_H

     7

     8

#include "oldpool.h"

     9

    10

struct Sign;

    11

DECLARE_OLD_POOL(Sign, Sign, 2, 16000)

    12

    13

struct Sign : PoolItem<Sign, SignID, &_Sign_pool> {

    14

	char *name;

    15

	ViewportSign sign;

    16

	int32        x;

    17

	int32        y;

    18

	byte         z;

    19

	PlayerByte   owner; // placed by this player. Anyone can delete them though. OWNER_NONE for gray signs from old games.

    20

    21

	/**

    22

	 * Creates a new sign

    23

	 */

    24

	Sign(PlayerID owner = INVALID_PLAYER);

    25

    26

	/** Destroy the sign */

    27

	~Sign();

    28

    29

	inline bool IsValid() const { return this->owner != INVALID_PLAYER; }

    30

};

    31

    32

enum {

    33

	INVALID_SIGN = 0xFFFF,

    34

};

    35

    36

extern SignID _new_sign_id;

    37

    38

    39

static inline SignID GetMaxSignIndex()

    40

{

    41

	/* TODO - This isn't the real content of the function, but

    42

	 *  with the new pool-system this will be replaced with one that

    43

	 *  _really_ returns the highest index. Now it just returns

    44

	 *  the next safe value we are sure about everything is below.

    45

	 */

    46

	return GetSignPoolSize() - 1;

    47

}

    48

    49

static inline uint GetNumSigns()

    50

{

    51

	extern uint _total_signs;

    52

	return _total_signs;

    53

}

    54

    55

static inline bool IsValidSignID(uint index)

    56

{

    57

	return index < GetSignPoolSize() && GetSign(index)->IsValid();

    58

}

    59

    60

#define FOR_ALL_SIGNS_FROM(ss, start) for (ss = GetSign(start); ss != NULL; ss = (ss->index + 1U < GetSignPoolSize()) ? GetSign(ss->index + 1U) : NULL) if (ss->IsValid())

    61

#define FOR_ALL_SIGNS(ss) FOR_ALL_SIGNS_FROM(ss, 0)

    62

    63

extern bool _sign_sort_dirty;

    64

    65

void UpdateAllSignVirtCoords();

    66

void PlaceProc_Sign(TileIndex tile);

    67

    68

/* signs_gui.cpp */

    69

void ShowRenameSignWindow(const Sign *si);

    70

    71

void ShowSignList();

    72

    73

#endif /* SIGNS_H */