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/*
* 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
*
* $Id$
*/
#include <cassert>
#include "state.h"
#include "gamehandler.h"
#include "map.h"
#include "mapmanager.h"
#include "messageout.h"
#include "point.h"
#include "storage.h"
#include "utils/logger.h"
State::State()
{
}
State::~State()
{
for (std::map<unsigned int, MapComposite>::iterator i = maps.begin();
i != maps.end();
i++)
{
delete i->second.map;
}
}
void
State::update()
{
// update game state (update AI, etc.)
for (std::map<unsigned int, MapComposite>::iterator m = maps.begin(),
m_end = maps.end(); m != m_end; ++m)
{
typedef std::vector< utils::CountedPtr<MovingObject> > Movings;
Movings movings;
for (Objects::iterator o = m->second.objects.begin(),
o_end = m->second.objects.end(); o != o_end; ++o)
{
(*o)->update();
int t = (*o)->getType();
if (t == OBJECT_NPC || t == OBJECT_PLAYER || t == OBJECT_MONSTER) {
utils::CountedPtr<MovingObject> ptr(*o);
ptr->move();
movings.push_back(ptr);
}
}
Players &players = m->second.players;
for (Players::iterator p = players.begin(),
p_end = players.end(); p != p_end; ++p)
{
Point ps = (*p)->getXY();
Point pn = (*p)->getNextPosition();
bool po = !(*p)->isNew(); // Is p old?
MessageOut msg(GPMSG_BEINGS_MOVE);
for (Movings::iterator o = movings.begin(),
o_end = movings.end(); o != o_end; ++o)
{
Point os = (*o)->getXY();
Point on = (*o)->getNextPosition();
bool oo = po && !(*o)->isNew(); // Are p and o both old?
/* Look whether p and o "were" around the last time and whether
they "will" be around the next time. */
bool wereInRange = ps.inRangeOf(os) && oo;
bool willBeInRange = pn.inRangeOf(on);
if (!wereInRange)
{
// o was outside p's range.
if (!willBeInRange)
{
// Nothing to report: o will not be inside p's range.
continue;
}
int type = (*o)->getType();
MessageOut msg2(GPMSG_BEING_ENTER);
msg2.writeByte(type);
msg2.writeLong((*o)->getID());
switch (type) {
case OBJECT_PLAYER:
{
PlayerPtr q(*o);
msg2.writeString(q->getName());
msg2.writeByte(q->getHairStyle());
msg2.writeByte(q->getHairColor());
msg2.writeByte(q->getGender());
} break;
default:
assert(false); // TODO
}
gameHandler->sendTo(*p, msg2);
}
else if (!willBeInRange)
{
// o is no longer visible from p.
MessageOut msg2(GPMSG_BEING_LEAVE);
msg2.writeByte((*o)->getType());
msg2.writeLong((*o)->getID());
gameHandler->sendTo(*p, msg2);
continue;
}
else if (os.x == on.x && os.y == on.y)
{
// o does not move, nothing to report.
continue;
}
/* At this point, either o has entered p's range, either o is
moving inside p's range. Report o's movements. */
Point od = (*o)->getDestination();
msg.writeLong((*o)->getID());
msg.writeShort(on.x);
msg.writeShort(on.y);
msg.writeShort(od.x);
msg.writeShort(od.y);
}
// Don't send a packet if nothing happed in p's range.
if (msg.getLength() > 2)
gameHandler->sendTo(*p, msg);
}
for (Movings::iterator o = movings.begin(),
o_end = movings.end(); o != o_end; ++o)
{
(*o)->setXY((*o)->getNextPosition());
(*o)->setNew(false);
}
}
}
void
State::addObject(ObjectPtr objectPtr)
{
unsigned mapId = objectPtr->getMapId();
if (!loadMap(mapId)) return;
maps[mapId].objects.push_back(objectPtr);
objectPtr->setNew(true);
if (objectPtr->getType() != OBJECT_PLAYER) return;
maps[mapId].players.push_back(PlayerPtr(objectPtr));
}
void
State::removeObject(ObjectPtr objectPtr)
{
unsigned mapId = objectPtr->getMapId();
std::map<unsigned, MapComposite>::iterator m = maps.find(mapId);
if (m == maps.end()) return;
Objects &objects = m->second.objects;
for (Objects::iterator o = objects.begin(),
o_end = objects.end(); o != o_end; ++o) {
if (o->get() == objectPtr.get()) {
objects.erase(o);
break;
}
}
if (objectPtr->getType() != OBJECT_PLAYER) return;
MessageOut msg(GPMSG_BEING_LEAVE);
msg.writeByte(OBJECT_PLAYER);
msg.writeLong(objectPtr->getID());
Players &players = maps[mapId].players;
Players::iterator p_end = players.end(), j = p_end;
for (Players::iterator p = players.begin(); p != p_end; ++p)
{
if (p->get() == objectPtr.get())
{
j = p;
}
else if (objectPtr->getXY().inRangeOf((*p)->getXY()))
{
gameHandler->sendTo(*p, msg);
}
}
if (j != p_end)
{
players.erase(j);
}
}
void
State::informPlayer(PlayerPtr playerPtr)
{
unsigned mapId = playerPtr->getMapId();
std::map<unsigned, MapComposite>::iterator m = maps.find(mapId);
if (m == maps.end()) return;
/* Since the player doesn't know yet where on the world he is after
* connecting to the map server, we send him an initial change map message.
*/
Storage &store = Storage::instance("tmw");
MessageOut mapChangeMessage(GPMSG_PLAYER_MAP_CHANGE);
mapChangeMessage.writeString(store.getMapNameFromId(mapId));
mapChangeMessage.writeShort(playerPtr->getX());
mapChangeMessage.writeShort(playerPtr->getY());
mapChangeMessage.writeByte(0);
gameHandler->sendTo(playerPtr, mapChangeMessage);
}
bool
State::loadMap(const unsigned int mapId)
{
if (maps.find(mapId) != maps.end()) return true;
Map *tmp = MapManager::instance().loadMap(mapId);
if (!tmp) return false;
maps[mapId].map = tmp;
// will need to load extra map related resources here also
return true; // We let true for testing on beings
}
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