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/* $Id$ */
#ifndef SIGNS_H
#define SIGNS_H
#include "pool.h"
typedef struct SignStruct {
StringID str;
ViewportSign sign;
int32 x;
int32 y;
byte z;
byte owner; // placed by this player. Anyone can delete them though.
// OWNER_NONE for gray signs from old games.
uint16 index;
} SignStruct;
extern MemoryPool _sign_pool;
/**
* Check if a Sign really exists.
*/
static inline bool IsValidSign(SignStruct* ss)
{
return ss->str != 0;
}
/**
* Get the pointer to the sign with index 'index'
*/
static inline SignStruct *GetSign(uint index)
{
return (SignStruct*)GetItemFromPool(&_sign_pool, index);
}
/**
* Get the current size of the SignPool
*/
static inline uint16 GetSignPoolSize(void)
{
return _sign_pool.total_items;
}
static inline bool IsSignIndex(uint index)
{
return index < GetSignPoolSize();
}
#define FOR_ALL_SIGNS_FROM(ss, start) for (ss = GetSign(start); ss != NULL; ss = (ss->index + 1 < GetSignPoolSize()) ? GetSign(ss->index + 1) : NULL)
#define FOR_ALL_SIGNS(ss) FOR_ALL_SIGNS_FROM(ss, 0)
VARDEF SignStruct *_new_sign_struct;
VARDEF bool _sign_sort_dirty;
VARDEF uint16 *_sign_sort;
void UpdateAllSignVirtCoords(void);
void PlaceProc_Sign(TileIndex tile);
/* misc.c */
void ShowRenameSignWindow(const SignStruct *ss);
#endif /* SIGNS_H */
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