/*

 *  The Mana World

 *  Copyright (C) 2006  The Mana World Development Team

 *

 *  This file is part of 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 "imageparticle.h"

#include "graphics.h"

#include "resources/image.h"

ImageParticle::ImageParticle(Map *map, Image *image):

    Particle(map),

    mImage(image)

{

    if (mImage)

        mImage->incRef();

}

ImageParticle::~ImageParticle()

{

    if (mImage)

        mImage->decRef();

}

void ImageParticle::draw(Graphics *graphics, int offsetX, int offsetY) const

{

    if (!mAlive || !mImage)

        return;

    int screenX = (int) mPos.x + offsetX - mImage->getWidth() / 2;

    int screenY = (int) mPos.y - (int)mPos.z + offsetY - mImage->getHeight()/2;

    // Check if on screen

    if (screenX + mImage->getWidth() < 0 ||

            screenX > graphics->getWidth() ||

            screenY + mImage->getHeight() < 0 ||

            screenY > graphics->getHeight())

    {

        return;

    }

    float alphafactor = mAlpha;

    if (mLifetimeLeft > -1 && mLifetimeLeft < mFadeOut)

        alphafactor *= (float) mLifetimeLeft / (float) mFadeOut;

    if (mLifetimePast < mFadeIn)

        alphafactor *= (float) mLifetimePast / (float) mFadeIn;

    mImage->setAlpha(alphafactor);

    graphics->drawImage(mImage, screenX, screenY);

}