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/*
* The Mana World
* Copyright (C) 2004 The Mana World Development Team
*
* This file is part of The Mana World.
*
* 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
* 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 MESSAGEOUT_H
#define MESSAGEOUT_H
#include <iosfwd>
#include <SDL_types.h>
#ifdef EATHENA_SUPPORT
class Network;
#endif
/**
* Used for building an outgoing message.
*
* With manaserv, the message is sent using Net::Connection::send() when
* finished.
*
* \ingroup Network
*/
class MessageOut
{
public:
/**
* Constructor.
*/
MessageOut(short id);
#ifdef MANASERV_SUPPORT
/**
* Destructor.
*/
~MessageOut();
#endif
void writeInt8(Sint8 value); /**< Writes a byte. */
void writeInt16(Sint16 value); /**< Writes a short. */
void writeInt32(Sint32 value); /**< Writes a long. */
#ifdef EATHENA_SUPPORT
/**
* Encodes coordinates and direction in 3 bytes. Used by eAthena.
*/
void writeCoordinates(unsigned short x, unsigned short y,
unsigned char direction);
#endif
/**
* Writes a string. If a fixed length is not given (-1), it is stored
* as a short at the start of the string.
*/
void writeString(const std::string &string, int length = -1);
/**
* Returns the content of the message.
*/
char *getData() const;
/**
* Returns the length of the data.
*/
unsigned int getDataSize() const;
short mID;
private:
#ifdef MANASERV_SUPPORT
/**
* Expand the packet data to be able to hold more data.
*
* NOTE: For performance enhancements this method could allocate extra
* memory in advance instead of expanding size every time more data is
* added.
*/
void expand(size_t size);
#else
Network *mNetwork;
#endif
char *mData; /**< Data building up. */
unsigned int mDataSize; /**< Size of data. */
unsigned int mPos; /**< Position in the data. */
};
#endif
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