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/* $Id$ */
/** @file signs_base.h Base class for signs. */
#ifndef SIGNS_BASE_H
#define SIGNS_BASE_H
#include "signs_type.h"
#include "viewport_type.h"
#include "oldpool.h"
DECLARE_OLD_POOL(Sign, Sign, 2, 16000)
struct Sign : PoolItem<Sign, SignID, &_Sign_pool> {
char *name;
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.
/**
* Creates a new sign
*/
Sign(PlayerID owner = INVALID_PLAYER);
/** Destroy the sign */
~Sign();
inline bool IsValid() const { return this->owner != INVALID_PLAYER; }
};
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;
}
static inline bool IsValidSignID(uint index)
{
return index < GetSignPoolSize() && GetSign(index)->IsValid();
}
#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())
#define FOR_ALL_SIGNS(ss) FOR_ALL_SIGNS_FROM(ss, 0)
#endif /* SIGNS_BASE_H */
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