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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
*/
#include "net/messageout.h"
#ifdef MANASERV_SUPPORT
#include <enet/enet.h>
#else
#include "net/ea/network.h"
#include <SDL.h>
#include <SDL_endian.h>
#endif
#include <cstring>
#include <string>
MessageOut::MessageOut(short id):
mData(0),
mDataSize(0),
mPos(0)
{
mID = id;
#ifdef EATHENA_SUPPORT
mNetwork = Network::instance();
mData = mNetwork->mOutBuffer + mNetwork->mOutSize;
#endif
writeInt16(id);
}
#ifdef MANASERV_SUPPORT
MessageOut::~MessageOut()
{
free(mData);
}
void MessageOut::expand(size_t bytes)
{
mData = (char*)realloc(mData, bytes);
mDataSize = bytes;
}
#endif
void MessageOut::writeInt8(Sint8 value)
{
#ifdef MANASERV_SUPPORT
expand(mPos + 1);
#else
mNetwork->mOutSize += 1;
#endif
mData[mPos] = value;
mPos += 1;
}
void MessageOut::writeInt16(Sint16 value)
{
#ifdef MANASERV_SUPPORT
expand(mPos + 2);
uint16_t t = ENET_HOST_TO_NET_16(value);
memcpy(mData + mPos, &t, 2);
#else
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
(*(Sint16 *)(mData + mPos)) = SDL_Swap16(value);
#else
(*(Sint16 *)(mData + mPos)) = value;
#endif
mNetwork->mOutSize += 2;
#endif // MANASERV_SUPPORT
mPos += 2;
}
void MessageOut::writeInt32(Sint32 value)
{
#ifdef MANASERV_SUPPORT
expand(mPos + 4);
uint32_t t = ENET_HOST_TO_NET_32(value);
memcpy(mData + mPos, &t, 4);
#else
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
(*(Sint32 *)(mData + mPos)) = SDL_Swap32(value);
#else
(*(Sint32 *)(mData + mPos)) = value;
#endif
mNetwork->mOutSize += 4;
#endif // MANASERV_SUPPORT
mPos += 4;
}
#ifdef EATHENA_SUPPORT
#define LOBYTE(w) ((unsigned char)(w))
#define HIBYTE(w) ((unsigned char)(((unsigned short)(w)) >> 8))
void MessageOut::writeCoordinates(unsigned short x, unsigned short y,
unsigned char direction)
{
char *data = mData + mPos;
mNetwork->mOutSize += 3;
mPos += 3;
short temp;
temp = x;
temp <<= 6;
data[0] = 0;
data[1] = 1;
data[2] = 2;
data[0] = HIBYTE(temp);
data[1] = (unsigned char) temp;
temp = y;
temp <<= 4;
data[1] |= HIBYTE(temp);
data[2] = LOBYTE(temp);
// Translate direction to eAthena format
switch (direction)
{
case 1:
direction = 0;
break;
case 3:
direction = 1;
break;
case 2:
direction = 2;
break;
case 6:
direction = 3;
break;
case 4:
direction = 4;
break;
case 12:
direction = 5;
break;
case 8:
direction = 6;
break;
case 9:
direction = 7;
break;
default:
// OOPSIE! Impossible or unknown
direction = (unsigned char) -1;
}
data[2] |= direction;
}
#endif // EATHENA_SUPPORT
void MessageOut::writeString(const std::string &string, int length)
{
int stringLength = string.length();
if (length < 0)
{
// Write the length at the start if not fixed
writeInt16(stringLength);
length = stringLength;
}
else if (length < stringLength)
{
// Make sure the length of the string is no longer than specified
stringLength = length;
}
#ifdef MANASERV_SUPPORT
expand(mPos + length);
#else
mNetwork->mOutSize += length;
#endif
// Write the actual string
memcpy(mData + mPos, string.c_str(), stringLength);
// Pad remaining space with zeros
if (length > stringLength)
{
memset(mData + mPos + stringLength, '\0', length - stringLength);
}
mPos += length;
}
char *MessageOut::getData() const
{
return mData;
}
unsigned int MessageOut::getDataSize() const
{
return mDataSize;
}
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