UpdateData.cpp

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/*
* This file is part of Project SkyFire https://www.projectskyfire.org.
* See LICENSE.md file for Copyright information
*/
 
#include "ByteBuffer.h"
#include "Common.h"
#include "Log.h"
#include "Opcodes.h"
#include "UpdateData.h"
#include "World.h"
#include "WorldPacket.h"
#include "zlib.h"
 
UpdateData::UpdateData(uint16 map) : m_map(map), m_blockCount(0) { }
 
void UpdateData::AddOutOfRangeGUID(std::set<uint64>& guids)
{
    m_outOfRangeGUIDs.insert(guids.begin(), guids.end());
}
 
void UpdateData::AddOutOfRangeGUID(uint64 guid)
{
    m_outOfRangeGUIDs.insert(guid);
}
 
void UpdateData::AddUpdateBlock(const ByteBuffer& block)
{
    m_data.append(block);
    ++m_blockCount;
}
 
bool UpdateData::BuildPacket(WorldPacket* packet)
{
    ASSERT(packet->empty());                                // shouldn't happen
    packet->Initialize(SMSG_UPDATE_OBJECT, 2 + 4 + (m_outOfRangeGUIDs.empty() ? 0 : 1 + 4 + 9 * m_outOfRangeGUIDs.size()) + m_data.wpos());
 
    *packet << uint16(m_map);
    *packet << uint32(m_blockCount + (m_outOfRangeGUIDs.empty() ? 0 : 1));
 
    if (!m_outOfRangeGUIDs.empty())
    {
        *packet << uint8(UPDATETYPE_OUT_OF_RANGE_OBJECTS);
        *packet << uint32(m_outOfRangeGUIDs.size());
 
        for (std::set<uint64>::const_iterator i = m_outOfRangeGUIDs.begin(); i != m_outOfRangeGUIDs.end(); ++i)
            packet->appendPackGUID(*i);
    }
 
    packet->append(m_data);
    return true;
}
 
void UpdateData::Clear()
{
    m_data.clear();
    m_outOfRangeGUIDs.clear();
    m_blockCount = 0;
    m_map = 0;
}