gameid.hpp

#ifndef OBJECTID_H
#define OBJECTID_H
 
#include "json.hpp"
#include "randomizer.hpp"
#include "timer.h"
 
class ObjectId
{
public:
    static ObjectId create() {
        ObjectId new_id;
        new_id._value = ((uint64_t)((uint16_t)(Randomizer<uint16_t>().getRandom(0x0000, 0xFFFF))) << 48 ) |
                        (Timer::getTimeEpocUS() & 0x0000FFFFFFFFFFFFULL);
        return new_id;
    }
 
    ObjectId()
        : _value( _invalidId ) {}
 
    ObjectId( const ObjectId& other )
        : _value( other._value ) {}
 
    bool isValid() const {
        return _value != _invalidId;
    }
 
    const ObjectId &operator =( const ObjectId &b) {
        _value = b._value;
        return *this;
    }
 
    operator std::string() const {
        return std::to_string( _value );
    }
 
    friend void to_json(nlohmann::json& j, const ObjectId& s) {
        j = s._value;
    }
 
    friend void from_json(const nlohmann::json& j, ObjectId& s) {
        s._value = j.get<uint64_t>();
    }
 
    friend bool operator == (const ObjectId &a, const ObjectId &b) {
        return a._value == b._value;
    }
 
    friend bool operator != (const ObjectId &a, const ObjectId &b) {
        return a._value != b._value;
    }
 
    friend bool operator < (const ObjectId &a, const ObjectId &b) {
        return a._value < b._value;
    }
 
private:
    static constexpr uint64_t _invalidId = 0;
    uint64_t _value;
 
};
 
#endif // OBJECTID_H