source: orxonox.OLD/orxonox/trunk/src/lib/physics/fields/twirl.cc @ 4338

/* 
   orxonox - the future of 3D-vertical-scrollers

   Copyright (C) 2004 orx

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

   ### File Specific:
   main-programmer: ...
   co-programmer: ...
*/

//#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_

#include "twirl.h"

using namespace std;


/**
   \brief standard constructor
   \todo this constructor is not jet implemented - do it
*/
Twirl::Twirl () 
{
   this->setClassName ("Twirl");
}


/**
   \brief standard deconstructor

*/
Twirl::~Twirl () 
{
  // delete what has to be deleted here
}

/**
   \brief calculates the Twirl on any point in space
   \param data The Position of the Point in space to attache twirl to.
   \returns The force.
*/
Vector Twirl::calcForce(float dt, const Vector& data) const
{
  return /*this->getAbsDir()*/ Vector(0,1,0).cross(this->getAbsCoor() - data)
    * this->getMagnitude() * dt;
}