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/*
* Aethyra
* Copyright (C) 2004 The Mana World Development Team
*
* This file is part of Aethyra based on original code
* from 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 "protocol.h"
#define LOBYTE(w) ((unsigned char)(w))
#define HIBYTE(w) ((unsigned char)(((unsigned short)(w)) >> 8))
void set_coordinates(char *data,
unsigned short x,
unsigned short y,
unsigned char direction)
{
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;
}
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