source: code/branches/physics_new/src/ogreode/OgreOdeUtility.h @ 2119

#ifndef _OGREODEUTILITY_H_
#define _OGREODEUTILITY_H_

#include "OgreOdePreReqs.h"

namespace OgreOde
{
        class _OgreOdeExport Utility
        {
        public:
                Utility(){}
                ~Utility(){}

                static Ogre::Real randomReal();

                static const Ogre::Real Infinity;

                /** returns a CFM value for use on joints or contacts
                        @param timeStep is the the stepping time for the world, see Steppers
                */
                static Ogre::Real getCFM(Ogre::Real spring, Ogre::Real dampening, Ogre::Real timeStep);

                /** returns a ERP value for use on joints or contacts
                */
                static Ogre::Real getERP(Ogre::Real spring, Ogre::Real dampening, Ogre::Real timeStep);
                
                /** can be used to get spring constants out of a ERP and CFM value
                */
                static void getSpringConstants(Ogre::Real CFM, Ogre::Real ERP, Ogre::Real timeStep, Ogre::Real &spring, Ogre::Real &dampening);
        };
}

#endif