//---------------------------------------------------------------------------

#ifndef ParticlesH
#define ParticlesH


#define STATIC_THRESHOLD	0.17f
//efine STATIC_THRESHOLD	0.03f
const double	m_Kd	= 0.02f;	// DAMPING FACTOR
const double	m_Kr	= 0.8f;		// 1.0 = SUPERBALL BOUNCE 0.0 = DEAD WEIGHT
const double	m_Ksh	= 5.0f;		// HOOK'S SPRING CONSTANT
const double	m_Ksd	= 0.1f;		// SPRING DAMPING CONSTANT

const double	m_Csf	= 0.9f;		// Default Static Friction
const double	m_Ckf	= 0.7f;	    // Default Kinetic Friction

#include "dumb3d.h"
using namespace Math3D;

class TSpring
{
public:
    __fastcall TSpring();
    __fastcall ~TSpring();
//    void __fastcall Init(TParticnp1, TParticle *np2, double nKs= 0.5f, double nKd= 0.002f, double nrestLen= -1.0f);
    void __fastcall Init(double nrestLen, double nKs= 0.5f, double nKd= 0.002f);
    bool __fastcall ComputateForces(vector3 pPosition1, vector3 pPosition2);
    void __fastcall Render();
    vector3 vForce1,vForce2;
	double	restLen;	// LENGTH OF SPRING AT REST
	double	Ks;			// SPRING CONSTANT
	double	Kd;			// SPRING DAMPING
private:
};


//---------------------------------------------------------------------------
#endif