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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef SIMOBJECT_IDPOOL_H
#define SIMOBJECT_IDPOOL_H
#include "System/creg/creg_cond.h"
#include "System/UnorderedMap.hpp"
class CSolidObject;
class SimObjectIDPool {
CR_DECLARE_STRUCT(SimObjectIDPool)
public:
void Expand(unsigned int baseID, unsigned int numIDs);
void AssignID(CSolidObject* object);
void FreeID(unsigned int id, bool delayed);
bool HasID(unsigned int id) const;
bool IsEmpty() const { return (liveIndexToIdentMap.empty()); }
unsigned int GetSize() const { return (liveIndexToIdentMap.size()); } // number of ID's still unused
unsigned int MaxSize() const { return (liveIdentToIndexMap.size()); } // number of ID's this pool owns
private:
unsigned int ExtractID();
void ReserveID(unsigned int id);
void RecycleIDs();
private:
typedef std::pair<unsigned int, unsigned int> IDPair;
typedef spring::unordered_map<unsigned int, unsigned int> IDMap;
IDMap liveIdentToIndexMap;
IDMap liveIndexToIdentMap;
IDMap tempIndexToIdentMap;
};
#endif
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