4 // Copyright (C) 2006 Matthias Braun <matze@braunis.de>
6 // This program is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU General Public License
8 // as published by the Free Software Foundation; either version 2
9 // of the License, or (at your option) any later version.
11 // This program is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License
17 // along with this program; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 #ifndef SUPERTUX_BACKGROUND_H
21 #define SUPERTUX_BACKGROUND_H
24 #include "video/surface.hpp"
25 #include "video/drawing_context.hpp"
26 #include "game_object.hpp"
27 #include "serializable.hpp"
35 class Background : public GameObject, public Serializable
39 Background(const lisp::Lisp& reader);
40 virtual ~Background();
42 virtual void write(lisp::Writer& writer);
44 void set_image(const std::string& name, float bkgd_speed);
46 std::string get_image() const
48 float get_speed() const
51 virtual void update(float elapsed_time);
53 virtual void draw(DrawingContext& context);
57 std::string imagefile_top;
58 std::string imagefile;
59 std::string imagefile_bottom;
60 Vector pos; /**< coordinates of upper-left corner of image */
61 float speed; /**< scroll-speed in horizontal direction */
62 float speed_y; /**< scroll-speed in vertical direction */
63 std::auto_ptr<Surface> image_top; /**< image to draw above pos */
64 std::auto_ptr<Surface> image; /**< image to draw, anchored at pos */
65 std::auto_ptr<Surface> image_bottom; /**< image to draw below pos+<screenheight> */
68 #endif /*SUPERTUX_BACKGROUND_H*/