/*
 * Copyright (C) 2005-2012 MaNGOS <http://getmangos.com/>
 *
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef __UPDATEDATA_H
#define __UPDATEDATA_H

#include "ByteBuffer.h"
#include "ObjectGuid.h"

class WorldPacket;

enum ObjectUpdateType
{
    UPDATETYPE_VALUES               = 0,
    UPDATETYPE_CREATE_OBJECT        = 1,
    UPDATETYPE_CREATE_OBJECT2       = 2,
    UPDATETYPE_OUT_OF_RANGE_OBJECTS = 3,
};

enum ObjectUpdateFlags
{
    UPDATEFLAG_NONE                 = 0x0000,
    UPDATEFLAG_SELF                 = 0x0001,
    UPDATEFLAG_TRANSPORT            = 0x0002,
    UPDATEFLAG_HAS_ATTACKING_TARGET = 0x0004,
    UPDATEFLAG_UNK                  = 0x0008,
    UPDATEFLAG_LOW                  = 0x0010,
    UPDATEFLAG_LIVING               = 0x0020,
    UPDATEFLAG_HAS_POSITION         = 0x0040,
    UPDATEFLAG_VEHICLE              = 0x0080,
    UPDATEFLAG_POSITION             = 0x0100,
    UPDATEFLAG_ROTATION             = 0x0200,
    UPDATEFLAG_UNK1                 = 0x0400,
    UPDATEFLAG_ANIM_KITS            = 0x0800,
    UPDATEFLAG_TRANSPORT_ARR        = 0x1000,
    UPDATEFLAG_ENABLE_PORTALS       = 0x2000,
    UPDATEFLAG_UNK2                 = 0x4000,
};

class UpdateData
{
    public:
        UpdateData(uint16 mapId);

        void AddOutOfRangeGUID(GuidSet& guids);
        void AddOutOfRangeGUID(ObjectGuid const& guid);
        void AddUpdateBlock(const ByteBuffer& block);
        bool BuildPacket(WorldPacket* packet);
        bool HasData() { return m_blockCount > 0 || !m_outOfRangeGUIDs.empty(); }
        void Clear();

        GuidSet const& GetOutOfRangeGUIDs() const { return m_outOfRangeGUIDs; }

    protected:
        uint16 m_map;
        uint32 m_blockCount;
        GuidSet m_outOfRangeGUIDs;
        ByteBuffer m_data;

        void Compress(void* dst, uint32* dst_size, void* src, int src_size);
};
#endif