00001 // $Id: particle.hxx,v 1.13 2003/01/05 20:51:02 grumbel Exp $ 00002 // 00003 // Construo - A wire-frame construction game 00004 // Copyright (C) 2002 Ingo Ruhnke <grumbel@gmx.de> 00005 // 00006 // This program is free software; you can redistribute it and/or 00007 // modify it under the terms of the GNU General Public License 00008 // as published by the Free Software Foundation; either version 2 00009 // of the License, or (at your option) any later version. 00010 // 00011 // This program is distributed in the hope that it will be useful, 00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 // GNU General Public License for more details. 00015 // 00016 // You should have received a copy of the GNU General Public License 00017 // along with this program; if not, write to the Free Software 00018 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00019 00020 #ifndef HEADER_CONSTRUO_PARTICLE_HXX 00021 #define HEADER_CONSTRUO_PARTICLE_HXX 00022 00023 #include <iostream> 00024 #include "lisp_writer.hxx" 00025 #include "construo.hxx" 00026 #include "zoom_graphic_context.hxx" 00027 #include "vector2d.hxx" 00028 00029 class Particle 00030 { 00031 private: 00033 int id; 00034 00035 public: 00037 Vector2d pos; 00038 00040 Vector2d velocity; 00041 00042 private: 00044 float mass; 00045 public: 00046 bool fixed; 00047 00050 Vector2d totale_force; 00051 00053 int spring_links; 00054 00057 int get_id () { 00058 return id; 00059 } 00060 00061 void add_force (const Vector2d& force) 00062 { 00063 if (fixed) return; 00064 totale_force += force; 00065 } 00066 00067 void clear_force () 00068 { 00069 totale_force = Vector2d (); 00070 } 00071 00072 void set_fixed (bool f) { 00073 fixed = f; 00074 } 00075 00076 bool get_fixed () { 00077 return fixed; 00078 } 00079 00080 inline float get_mass () const { return mass; } 00081 00082 void update (float delta); 00083 void draw (ZoomGraphicContext* gc); 00084 00086 void draw_highlight (ZoomGraphicContext* gc); 00087 00089 void draw_infos (ZoomGraphicContext* gc); 00090 00091 void draw_velocity_vector (ZoomGraphicContext* gc); 00092 00093 lisp_object_t* serialize(); 00094 00095 friend class ParticleFactory; 00096 00097 private: 00098 // Nobody beside the ParticleFactory can create particles 00099 Particle (int id_, const Vector2d& arg_pos, const Vector2d& arg_velocity, float mass_, bool fixed_); 00100 Particle (const Particle&); 00101 }; 00102 00103 #endif 00104 00105 /* EOF */
1.3-rc3