3 // SuperTux - A Jump'n Run
4 // Copyright (C) 2004 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.
19 #ifndef SUPERTUX_BACKGROUND_H
20 #define SUPERTUX_BACKGROUND_H
22 #include "video/surface.hpp"
23 #include "video/drawing_context.hpp"
24 #include "game_object.hpp"
25 #include "serializable.hpp"
33 class Background : public GameObject, public Serializable
37 Background(const lisp::Lisp& reader);
38 virtual ~Background();
40 virtual void write(lisp::Writer& writer);
42 void set_image(const std::string& name, float bkgd_speed);
44 void set_gradient(Color top, Color bottom);
46 std::string get_image() const
48 float get_speed() const
50 Color get_gradient_top() const
51 { return gradient_top; }
52 Color get_gradient_bottom() const
53 { return gradient_bottom; }
55 virtual void update(float elapsed_time);
57 virtual void draw(DrawingContext& context);
61 INVALID, GRADIENT, IMAGE
66 std::string imagefile_top;
67 std::string imagefile;
68 std::string imagefile_bottom;
69 Vector pos; /**< coordinates of upper-left corner of image */
70 float speed; /**< scroll-speed in horizontal direction */
71 float speed_y; /**< scroll-speed in vertical direction */
72 Surface* image_top; /**< image to draw above pos */
73 Surface* image; /**< image to draw, anchored at pos */
74 Surface* image_bottom; /**< image to draw below pos+<screenheight> */
75 Color gradient_top, gradient_bottom;
78 #endif /*SUPERTUX_BACKGROUND_H*/