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/*
* The Mana World
* Copyright (C) 2004-2010 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
*/
#ifndef RESOURCES_AMBIENTOVERLAY_H
#define RESOURCES_AMBIENTOVERLAY_H
class Graphics;
class Image;
class AmbientOverlay
{
public:
/**
* Constructor.
*
* @param img the image this overlay displays
* @param parallax scroll factor based on camera position
* @param speedX scrolling speed in x-direction
* @param speedY scrolling speed in y-direction
* @param keepRatio rescale the image to keep
* the same ratio than in 800x600 resolution mode.
*/
AmbientOverlay(Image *img, float parallax,
float speedX, float speedY, bool keepRatio = false);
~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; /**< Scrolling speed in X direction. */
float mSpeedY; /**< Scrolling speed in Y direction. */
bool mKeepRatio; /**< Keep overlay ratio on every resolution */
};
#endif
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