/*
 *  The Mana World Server
 *  Copyright 2004 The Mana World Development Team
 *
 *  This file is part of The Mana World.
 *
 *  The Mana World  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.
 *
 *  The Mana  World 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 The Mana  World; if not, write to the  Free Software Foundation, Inc.,
 *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include "game-server/actor.hpp"

#include "game-server/map.hpp"
#include "game-server/mapcomposite.hpp"

#include <cassert>

void Actor::setPosition(const Point &p)
{
    mPos = p;

    // Update blockmap
    if (getMap())
    {
        const Point &oldP = getPosition();
        if ((oldP.x / 32 != p.x / 32 || oldP.y / 32 != p.y / 32))
        {
            getMap()->getMap()->freeTile(oldP.x / 32, oldP.y / 32, getBlockType());
            getMap()->getMap()->blockTile(p.x / 32, p.y / 32, getBlockType());
        }
    }
}

void Actor::setMap(MapComposite *map)
{
    assert (map);
    MapComposite *oldMap = getMap();
    Point p = getPosition();

    if (oldMap)
    {
        oldMap->getMap()->freeTile(p.x / 32, p.y / 32, getBlockType());
    }
    Thing::setMap(map);
    map->getMap()->blockTile(p.x / 32, p.y / 32, getBlockType());
    /* the last line might look illogical because the current position is
     * invalid on the new map, but it is necessary to block the old position
     * because the next call of setPosition() will automatically free the old
     * position. When we don't block the position now the occupation counting
     * will be off.
     */
}