Packet.h

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/*
 * Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
 *
 * 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) : _worldPacket(std::move(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(); }
 ConnectionType GetConnection() const { return _worldPacket.GetConnection(); }

 protected:
 WorldPacket _worldPacket;
 };

 class ServerPacket : public Packet
 {
 public:
 ServerPacket(OpcodeServer opcode, size_t initialSize = 200, ConnectionType connection = CONNECTION_TYPE_DEFAULT) : Packet(WorldPacket(opcode, initialSize, connection)) { }

 void Read() override final { ASSERT(!"Read not implemented for server packets."); }

 void Clear() { _worldPacket.clear(); }
 WorldPacket&& Move() { return std::move(_worldPacket); }

 OpcodeServer GetOpcode() const { return OpcodeServer(_worldPacket.GetOpcode()); }
 };

 class ClientPacket : public Packet
 {
 public:
 ClientPacket(WorldPacket&& packet) : Packet(std::move(packet)) { }
 ClientPacket(OpcodeClient expectedOpcode, WorldPacket&& packet) : Packet(std::move(packet)) { ASSERT(GetOpcode() == expectedOpcode); }

 WorldPacket const* Write() override final
 {
 ASSERT(!"Write not allowed for client packets.");
 // Shut up some compilers
 return nullptr;
 }

 OpcodeClient GetOpcode() const { return OpcodeClient(_worldPacket.GetOpcode()); }
 };
}

#endif // PacketBaseWorld_h__