WorldStateBuilder.h

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/*
* This file is part of Project SkyFire https://www.projectskyfire.org.
* See LICENSE.md file for Copyright information
*/
 
#ifndef SF_WORLDSTATE_BUILDER_H
#define SF_WORLDSTATE_BUILDER_H
 
#include "WorldPacket.h"
#include "WorldSession.h"
 
#include <map>
 
// This builder had to be created because blizzard is swaping worldstate with value therefore a big rewrite would be needed everytime
class WorldStateBuilder
{
public:
    WorldStateBuilder(uint32 mapId, uint32 areaId, uint32 zoneId, std::map<uint32, uint32> wstateList = std::map<uint32, uint32>()) :
        _mapId(mapId), _zoneId(zoneId), _areaId(areaId), _wstateList(wstateList) {}
 
    WorldPacket BuildPacket() const
    {
        WorldPacket data(SMSG_INIT_WORLD_STATES, 4 + 4 + 4 + 3 + (_wstateList.size() * (4 + 4)));
        data << uint32(_mapId);
        data << uint32(_areaId);
        data << uint32(_zoneId);
        data.WriteBits(_wstateList.size(), 21);
        data.FlushBits();
 
        for (std::map<uint32, uint32>::const_iterator iter = _wstateList.begin(); iter != _wstateList.end(); ++iter)
            data << uint32(iter->second) << uint32(iter->first);
 
        return data;
    }
 
    void SendPacket(WorldSession* session)
    {
        WorldPacket data = BuildPacket();
        session->SendPacket(&data);
    }
 
    void AppendState(uint32 worldstate, uint32 value) { _wstateList.insert(std::make_pair(worldstate, value)); }
 
private:
    uint32 _mapId;
    uint32 _zoneId;
    uint32 _areaId;
    std::map<uint32, uint32> _wstateList;
};
#endif