-// $Id$
-//
// SuperTux
// Copyright (C) 2006 Matthias Braun <matze@braunis.de>
//
-// 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 (at your option) any later version.
+// 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 3 of the License, or
+// (at your option) 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
// 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.
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
-#ifndef SUPERTUX_BACKGROUND_H
-#define SUPERTUX_BACKGROUND_H
+#ifndef HEADER_SUPERTUX_OBJECT_BACKGROUND_HPP
+#define HEADER_SUPERTUX_OBJECT_BACKGROUND_HPP
-#include <memory>
-#include "video/surface.hpp"
+#include "supertux/game_object.hpp"
+#include "util/reader_fwd.hpp"
#include "video/drawing_context.hpp"
-#include "game_object.hpp"
-#include "serializable.hpp"
class DisplayManager;
-namespace lisp {
-class Lisp;
-}
-
-class Background : public GameObject, public Serializable
+class Background : public GameObject
{
public:
Background();
- Background(const lisp::Lisp& reader);
+ Background(const Reader& reader);
virtual ~Background();
- virtual void write(lisp::Writer& writer);
-
void set_image(const std::string& name, float bkgd_speed);
std::string get_image() const
virtual void update(float elapsed_time);
virtual void draw(DrawingContext& context);
+ void draw_image(DrawingContext& context, const Vector& pos);
private:
+ enum Alignment {
+ NO_ALIGNMENT,
+ LEFT_ALIGNMENT,
+ RIGHT_ALIGNMENT,
+ TOP_ALIGNMENT,
+ BOTTOM_ALIGNMENT
+ };
+
+ /** Backgrounds with NO_ALIGNMENT are repeated over the whole
+ screen, backgrounds with left, right, top, bottom alignment are
+ only repeated in one direction and attached to the level edge */
+ Alignment alignment;
+
int layer;
std::string imagefile_top;
std::string imagefile;
Vector pos; /**< coordinates of upper-left corner of image */
float speed; /**< scroll-speed in horizontal direction */
float speed_y; /**< scroll-speed in vertical direction */
- std::auto_ptr<Surface> image_top; /**< image to draw above pos */
- std::auto_ptr<Surface> image; /**< image to draw, anchored at pos */
- std::auto_ptr<Surface> image_bottom; /**< image to draw below pos+<screenheight> */
+ Vector scroll_speed;
+ Vector scroll_offset;
+ SurfacePtr image_top; /**< image to draw above pos */
+ SurfacePtr image; /**< image to draw, anchored at pos */
+ SurfacePtr image_bottom; /**< image to draw below pos+screenheight */
};
#endif /*SUPERTUX_BACKGROUND_H*/
+
+/* EOF */