gldynamic.h

/***************************************************************************
                          gldynamic.h  -  description
                             -------------------
    begin                : Thu Aug 21 2003
    copyright            : (C) 2003 by Jacques Gasselin de Richebourg
    email                : jacquesgasselin@hotmail.com
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU Lesser General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef GLDYNAMIC_H
#define GLDYNAMIC_H

#include "glvector.h"
#include "glgeometricobject.h"

namespace GLScene
{
   
   class GLVectorFunctor
   {
   public:
      virtual GLVector operator ()(GLfloat time) = 0;
   };

   class GravityAccelerator: public GLVectorFunctor
   {
   public:
      GLVector operator ()( GLfloat time )
      {
         return (GLVector(0,-9.81,0) * time);
      }
   };
        
   class GLDynamicObject : public GLGeometricObject
   {
   protected:
      GLVector velocity;
      GLVector impactImpulses; //update every move
      GLfloat mass;
      GLVectorFunctor* acceleration;
   public: 
    GLDynamicObject( GLVector vel, GLfloat m );
      virtual ~GLDynamicObject();

      inline void setAcceleration( GLVectorFunctor* vecFunc )
      { acceleration = vecFunc; }

      virtual void collision(GLGeometricObject* obj);
      virtual void staticCollision(GLGeometricObject* obj) = 0;
      virtual void dynamicCollision(GLDynamicObject* obj) = 0;
      
      virtual void applyAcceleration( GLfloat time );

      virtual void move( GLfloat time );
   };
};

#endif

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