Packet.h

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/*
 * 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/>.
 */
 
#ifndef PacketBaseWorld_h__
#define PacketBaseWorld_h__
 
#include "WorldPacket.h"
 
namespace WorldPackets
{
    class TC_GAME_API Packet
    {
    public:
        Packet(WorldPacket&& worldPacket);
 
        virtual ~Packet() = default;
 
        Packet(Packet const& right) = delete;
        Packet& operator=(Packet const& right) = delete;
 
        virtual WorldPacket const* Write() = 0;
        virtual void Read() = 0;
 
        WorldPacket const* GetRawPacket() const { return &_worldPacket; }
        size_t GetSize() const { return _worldPacket.size(); }
 
    protected:
        WorldPacket _worldPacket;
    };
 
    class TC_GAME_API ServerPacket : public Packet
    {
    public:
        ServerPacket(OpcodeServer opcode, size_t initialSize = 200);
 
        void Read() override final;
 
        void Clear() { _worldPacket.clear(); }
        WorldPacket&& Move() { return std::move(_worldPacket); }
        void ShrinkToFit() { _worldPacket.shrink_to_fit(); }
 
        OpcodeServer GetOpcode() const { return OpcodeServer(_worldPacket.GetOpcode()); }
    };
 
    class TC_GAME_API ClientPacket : public Packet
    {
    public:
        ClientPacket(WorldPacket&& packet);
        ClientPacket(OpcodeClient expectedOpcode, WorldPacket&& packet);
 
        WorldPacket const* Write() override final;
 
        OpcodeClient GetOpcode() const { return OpcodeClient(_worldPacket.GetOpcode()); }
    };
}
 
#endif // PacketBaseWorld_h__