particle_factory.hxx

   1 //  $Id: particle_factory.hxx,v 1.8 2003/01/08 23:14:59 grumbel Exp $
   2 //
   3 //  Construo - A wire-frame construction game
   4 //  Copyright (C) 2002 Ingo Ruhnke <grumbel@gmx.de>
   5 //
   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.
  10 //
  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.
  15 //
  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
  20 #ifndef HEADER_CONSTRUO_PARTICLE_FACTORY_HXX
  21 #define HEADER_CONSTRUO_PARTICLE_FACTORY_HXX
  22
  23 #include <vector>
  24 #include "vector2d.hxx"
  25 #include "lispreader.hxx"
  26
  27 class ZoomGraphicContext;
  28 class Particle;
  29 class World;
  30
  31 /** id of a particle, uniq only for a single ParticleFactory */
  32 typedef int ParticleId;
  33
  34 /** Its really more a particle manager, but lets see */
  35 class ParticleFactory
  36 {
  37 private:
  38   /** Pointer to the world holding this ParticleManager */
  39   World* world;
  40
  41   std::vector<Particle*> particles;
  42
  43   /** the id of next particle that will get created */
  44   int particle_id_count;
  45 public:
  46   /** Create an empty particle manager */
  47   ParticleFactory (World*);
  48
  49   /** Create a particle manager from the data in a .construo file */
  50   ParticleFactory (World*, lisp_object_t* cursor);
  51
  52   /** Copy a particle manager, the id's will be keep */
  53   ParticleFactory (World*, const ParticleFactory&);
  54
  55   Particle* add_particle (const Vector2d& arg_pos, const Vector2d& arg_velocity,
  56                           float m, bool f = false);
  57
  58   /** Duplicate a particle */
  59   Particle* add_particle (const Particle& particle);
  60
  61   /** Remove a particle by pointer */
  62   void remove_particle (Particle*);
  63
  64   /** Remove a particle by id */
  65   void remove_particle (int id);
  66
  67   int size () { return particles.size(); }
  68   Particle* lookup_particle (int id);
  69
  70   void update (float delta);
  71   void draw (ZoomGraphicContext* gc);
  72
  73   typedef std::vector<Particle*>::const_iterator CParticleIter;
  74   typedef std::vector<Particle*>::iterator ParticleIter;
  75
  76   ParticleIter begin () { return particles.begin(); }
  77   ParticleIter end () { return particles.end(); }
  78
  79   void clear ();
  80   void write_lisp(FILE* out);
  81
  82 private:
  83   ParticleFactory (const ParticleFactory&);
  84   ParticleFactory& operator= (const ParticleFactory&);
  85 };
  86
  87 #endif
  88
  89 /* EOF */