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 __VIEWPORT_H__
20 #define __VIEWPORT_H__
24 #include "game_object.h"
25 #include "serializable.h"
32 class Camera : public GameObject, public Serializable
35 Camera(Player* player = 0, Level* level = 0);
38 /** transforms a coordinate in world space to screen space.
39 * Basically you have to apply this function to each coordinate that you want
40 * to display on screen.
42 Vector world2screen(const Vector& worldpos) const
44 return worldpos - translation;
47 /// parse camera mode from lisp file
48 void read(LispReader& reader);
49 /// write camera mode to a lisp file
50 virtual void write(LispWriter& writer);
52 /** returns the current translation (=scroll) vector of the viewport */
53 const Vector& get_translation() const
54 { return translation; }
55 /** set the curren translation vector of the viewport */
56 void set_translation(const Vector& translation);
58 virtual void action(float elapsed_time);
62 NORMAL, AUTOSCROLL, MANUAL
67 void scroll_normal(float elapsed_time);
68 void scroll_autoscroll(float elapsed_time);
69 void keep_in_bounds();
71 enum LeftRightScrollChange
82 bool do_backscrolling;
83 LeftRightScrollChange scrollchange;
91 std::vector<ScrollPoint> scrollpoints;