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+/*
+ * The Mana Client
+ * Copyright (C) 2009-2010 The Mana Developers
+ *
+ * This file is part of The Mana Client.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef RESOURCES_AMBIENTOVERLAY_H
+#define RESOURCES_AMBIENTOVERLAY_H
+
+class Graphics;
+class Image;
+
+class AmbientLayer
+{
+ 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.
+ */
+ AmbientLayer(Image *img, float parallax,
+ float speedX, float speedY, bool keepRatio = false);
+
+ ~AmbientLayer();
+
+ 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