/***************************************************************************
   File:        PBMSpringParams.h                                                           
   Created:     02/12/2002                                                            
   Author:      Maxim Garber                                                
                Computer Science Department                                 
                University of North Carolina - Chapel Hill                  
                garber@cs.unc.edu                                           
                                                                            
   Description: Structure to hold the parameters for a spring.                                                           
                                                                            
----------------------------------------------------------------------------.
   Copyright 2002 Maxim Garber                                              
   UNC Collide Research Group                                       
                                                                            
                                                                            
*****************************************************************************/
#include "ODESolver.h"

struct PBMSpringMassParams
{
  float anchor  [3];    // anchor position of the spriung
  float position[3];    // position of the mass
  float restLength;     // rest length of the spring
  float springConstant; // spring constant
  float mass;           // mass at the end of the spring

  // physical constants
  float gravity[3];     // vector for gravitation force
  float friction;       // value of the friction force

  // ODE solver to use
  ODESolver* integrator;
};