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/*
* The Mana World Server
* Copyright 2006 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
*
* $Id$
*/
#include "game-server/spawnarea.hpp"
#include "game-server/mapcomposite.hpp"
#include "game-server/monster.hpp"
#include "game-server/state.hpp"
#include "utils/logger.h"
struct SpawnAreaEventDispatch: EventDispatch
{
SpawnAreaEventDispatch()
{
typedef EventListenerFactory< SpawnArea, &SpawnArea::mSpawnedListener > Factory;
removed = &Factory::create< Thing, &SpawnArea::decrease >::function;
}
};
static SpawnAreaEventDispatch spawnAreaEventDispatch;
SpawnArea::SpawnArea(MapComposite *map, MonsterClass *specy, const Rectangle &zone, int maxBeings, int spawnRate):
Thing(OBJECT_OTHER, map),
mSpecy(specy),
mSpawnedListener(&spawnAreaEventDispatch),
mZone(zone),
mMaxBeings(maxBeings),
mSpawnRate(spawnRate),
mNumBeings(0),
mNextSpawn(0)
{
}
void
SpawnArea::update()
{
if (mNextSpawn > 0)
{
mNextSpawn--;
if (mNextSpawn == 0)
{
// Find a free spawn location. Give up after 10 tries
int c = 10;
Point position;
MapComposite *map = getMap();
Map *realMap = map->getMap();
int x = mZone.x;
int y = mZone.y;
int width = mZone.w;
int height = mZone.h;
// Reset the spawn area to the whole map in case of dimensionless zone
if (width == 0 || height == 0)
{
x = 0;
y = 0;
width = realMap->getWidth() * 32;
height = realMap->getHeight() * 32;
}
Being *being = new Monster(mSpecy);
do
{
position = Point(x + rand() % width, y + rand() % height);
c--;
} while (!realMap->getWalk(position.x / 32, position.y / 32, being->getWalkMask()) && c);
if (c)
{
being->addListener(&mSpawnedListener);
being->setMap(map);
being->setPosition(position);
being->clearDestination();
GameState::enqueueInsert(being);
mNumBeings++;
}
else
{
LOG_WARN("Unable to find a free spawn location for monster "
<< mSpecy->getType() << " on map " << map->getName()
<< " (" << x << ',' << y << ','
<< width << ',' << height << ')');
delete being;
}
}
}
if (mNextSpawn == 0 && mNumBeings < mMaxBeings && mSpawnRate > 0)
{
// Predictable respawn intervals (can be randomized later)
mNextSpawn = (10 * 60) / mSpawnRate;
}
}
void SpawnArea::decrease(Thing *t)
{
--mNumBeings;
t->removeListener(&mSpawnedListener);
}
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