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/* $Id$ */
/** @file signs.h */
#ifndef SIGNS_H
#define SIGNS_H
#include "oldpool.h"
struct Sign {
StringID str;
ViewportSign sign;
int32 x;
int32 y;
byte z;
PlayerByte owner; // placed by this player. Anyone can delete them though. OWNER_NONE for gray signs from old games.
SignID index;
};
enum {
INVALID_SIGN = 0xFFFF,
};
extern SignID _new_sign_id;
DECLARE_OLD_POOL(Sign, Sign, 2, 16000)
static inline SignID GetMaxSignIndex()
{
/* TODO - This isn't the real content of the function, but
* with the new pool-system this will be replaced with one that
* _really_ returns the highest index. Now it just returns
* the next safe value we are sure about everything is below.
*/
return GetSignPoolSize() - 1;
}
static inline uint GetNumSigns()
{
extern uint _total_signs;
return _total_signs;
}
/**
* Check if a Sign really exists.
*/
static inline bool IsValidSign(const Sign *si)
{
return si->str != STR_NULL;
}
static inline bool IsValidSignID(uint index)
{
return index < GetSignPoolSize() && IsValidSign(GetSign(index));
}
void DestroySign(Sign *si);
static inline void DeleteSign(Sign *si)
{
DestroySign(si);
si->str = STR_NULL;
}
#define FOR_ALL_SIGNS_FROM(ss, start) for (ss = GetSign(start); ss != NULL; ss = (ss->index + 1U < GetSignPoolSize()) ? GetSign(ss->index + 1U) : NULL) if (IsValidSign(ss))
#define FOR_ALL_SIGNS(ss) FOR_ALL_SIGNS_FROM(ss, 0)
VARDEF bool _sign_sort_dirty;
void UpdateAllSignVirtCoords();
void PlaceProc_Sign(TileIndex tile);
/* signs_gui.cpp */
void ShowRenameSignWindow(const Sign *si);
void ShowSignList();
#endif /* SIGNS_H */
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