/*
 *  The Mana World
 *  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
 */

#ifndef _TMW_RESOURCES_AMBIENTOVERLAY_H_
#define _TMW_RESOURCES_AMBIENTOVERLAY_H_

class Graphics;
class Image;

class AmbientOverlay
{
    public:
        /**
         * Constructor.
         */
        AmbientOverlay(Image *img, float parallax,
                       float speedX, float speedY);

        /**
         * Destructor.
         */
        ~AmbientOverlay();

        void update(int timePassed, float dx, float dy);

        void draw(Graphics *graphics, int x, int y);

    private:
        Image *mImage;
        float mParallax;
        float mPosX;              /**< Current layer X position. */
        float mPosY;              /**< Current layer Y position. */
        float mSpeedX;            /**< Scroll speed in X direction. */
        float mSpeedY;            /**< Scroll speed in Y direction. */
};

#endif