____                _       __
    / __ )____  _____   | |     / /___ ___________
   / __  / __ \/ ___/   | | /| / / __ `/ ___/ ___/
  / /_/ / /_/ (__  )    | |/ |/ / /_/ / /  (__  )
 /_____/\____/____/     |__/|__/\__,_/_/  /____/

       A futuristic real-time strategy game.
          This file is part of Bos Wars.

(C) Copyright 2001-2007 by the Bos Wars and Stratagus Project. Distributed under the "GNU General Public License"

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particlemanager.cpp

Go to the documentation of this file.

//     ____                _       __               
//    / __ )____  _____   | |     / /___ ___________
//   / __  / __ \/ ___/   | | /| / / __ `/ ___/ ___/
//  / /_/ / /_/ (__  )    | |/ |/ / /_/ / /  (__  ) 
// /_____/\____/____/     |__/|__/\__,_/_/  /____/  
//                                              
//       A futuristic real-time strategy game.
//          This file is part of Bos Wars.
//
//
//      (c) Copyright 2007-2008 by Jimmy Salmon and Francois Beerten
//
//      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; only version 2 of the License.
//
//      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 "stratagus.h"
#include "particle.h"
#include "video.h"
#include "ui.h"


CParticleManager ParticleManager;


CParticleManager::CParticleManager() :
    vp(NULL), lastTicks(0)
{
}

CParticleManager::~CParticleManager()
{
}

void CParticleManager::init()
{
}

void CParticleManager::exit()
{
    ParticleManager.clear();
}

void CParticleManager::clear()
{
    std::vector<CParticle *>::iterator i;
    for (i = particles.begin(); i != particles.end(); ++i) {
        delete *i;
    }
    particles.clear();

    for (i = new_particles.begin(); i != new_particles.end(); ++i) {
        delete *i;
    }
    new_particles.clear();
}

void CParticleManager::draw(const CViewport *vp)
{
    this->vp = vp;

    std::vector<CParticle *>::iterator i;
    for (i = particles.begin(); i != particles.end(); ++i) {
        (*i)->draw();
    }

    this->vp = NULL;
}

void CParticleManager::update()
{
    unsigned long ticks = GetTicks() - lastTicks;
    std::vector<CParticle *>::iterator i;

    particles.insert(particles.end(), new_particles.begin(), new_particles.end());
    new_particles.clear();

    i = particles.begin();
    while (i != particles.end()) {
        (*i)->update(ticks);
        if ((*i)->isDestroyed()) {
            delete *i;
            i = particles.erase(i);
        } else {
            ++i;
        }
    }

    lastTicks += ticks;
}

void CParticleManager::add(CParticle *particle)
{
    new_particles.push_back(particle);
}

CPosition CParticleManager::getScreenPos(const CPosition &pos)
{
    int x = (int)pos.x;
    int y = (int)pos.y;
    vp->MapPixel2Viewport(x, y);
    return CPosition((float)x, (float)y);
}

---