UpdateData.cpp

Go to the documentation of this file.

/*
 * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "UpdateData.h"
#include "Errors.h"
#include "WorldPacket.h"
#include <utility>
 
UpdateData::UpdateData(uint32 map) : m_map(map), m_blockCount(0) { }
 
UpdateData::UpdateData(UpdateData&& right) noexcept :
    m_map(right.m_map), m_blockCount(std::exchange(right.m_blockCount, 0)),
    m_destroyGUIDs(std::move(right.m_destroyGUIDs)),
    m_outOfRangeGUIDs(std::move(right.m_outOfRangeGUIDs)),
    m_data(std::move(right.m_data))
{
}
 
UpdateData& UpdateData::operator=(UpdateData&& right) noexcept
{
    if (this != &right)
    {
        m_map = right.m_map;
        m_blockCount = std::exchange(right.m_blockCount, 0);
        m_destroyGUIDs = std::move(right.m_destroyGUIDs);
        m_outOfRangeGUIDs = std::move(right.m_outOfRangeGUIDs);
        m_data = std::move(right.m_data);
    }
    return *this;
}
 
UpdateData::~UpdateData() = default;
 
void UpdateData::AddDestroyObject(ObjectGuid guid)
{
    m_destroyGUIDs.insert(guid);
}
 
void UpdateData::AddOutOfRangeGUID(ObjectGuid guid)
{
    m_outOfRangeGUIDs.insert(guid);
}
 
bool UpdateData::BuildPacket(WorldPacket* packet)
{
    ASSERT(packet->empty());                                // shouldn't happen
    packet->Initialize(SMSG_UPDATE_OBJECT, 4 + 2 + 1 + (2 + 4 + 17 * (m_destroyGUIDs.size() + m_outOfRangeGUIDs.size())) + m_data.wpos());
 
    *packet << uint16(m_map);
    *packet << uint32(m_blockCount);
    packet->WriteBit(true); // unk
 
    if (packet->WriteBit(!m_outOfRangeGUIDs.empty() || !m_destroyGUIDs.empty()))
    {
        *packet << uint16(m_destroyGUIDs.size());
        *packet << uint32(m_destroyGUIDs.size() + m_outOfRangeGUIDs.size());
 
        for (ObjectGuid const& destroyGuid : m_destroyGUIDs)
            *packet << destroyGuid;
 
        for (ObjectGuid const& outOfRangeGuid : m_outOfRangeGUIDs)
            *packet << outOfRangeGuid;
    }
 
    *packet << uint32(m_data.size());
    packet->append(m_data);
    return true;
}
 
void UpdateData::Clear()
{
    m_data.clear();
    m_destroyGUIDs.clear();
    m_outOfRangeGUIDs.clear();
    m_blockCount = 0;
    m_map = 0;
}