1 // $Id: spring.hxx,v 1.7 2003/07/24 15:53:21 grumbel Exp $
3 // Construo - A wire-frame construction game
4 // Copyright (C) 2002 Ingo Ruhnke <grumbel@gmx.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 HEADER_CONSTRUO_SPRING_HXX
21 #define HEADER_CONSTRUO_SPRING_HXX
25 #include "particle.hxx"
27 #include "lisp_reader.hxx"
34 /** Pointers to the two particles to which the Spring is
36 std::pair
<Particle
*, Particle
*> particles
;
38 /** The orignial length of the Spring, the actually length on the
39 screen is different, since the spring can be streched */
49 Spring (Particle
* f
, Particle
* s
, float l
);
50 Spring (Particle
* f
, Particle
* s
);
52 Spring (World
* world
, lisp_object_t
* cursor
);
56 void update (float delta
);
57 void draw (ZoomGraphicContext
* gc
);
58 void draw_highlight (ZoomGraphicContext
* gc
);
60 /** Forces the recalculation of the springs length */
61 void recalc_length ();
63 lisp_object_t
* serialize();