#ifndef UNRAVEL_HPP
#define UNRAVEL_HPP

#include "../AttractorKernel.hpp"

#include <cmath>

class Unravel3D : public AttractorKernel {
public:
	Unravel3D():
		AttractorKernel(3, 7) {}

	virtual std::string type() const { return "unravel"; };

	virtual void operator()() {
		std::swap(vectorNew, vectorOld);

		vectorNew[0] = parameters[0]*(vectorOld[2] + parameters[1]);
		vectorNew[1] = parameters[2]*(vectorOld[0] + parameters[3]);
		vectorNew[2] = parameters[4]*(vectorOld[1] + parameters[5]);

		const double dist = vectorNew[0]*vectorNew[0] + vectorNew[1]*vectorNew[1] + vectorNew[2]*vectorNew[2];

		if(dist > parameters[6]*parameters[6]) {
			const double sqrtDist = std::sqrt(dist);
			const double p = 1.0 - parameters[6] * (static_cast<int>(sqrtDist / parameters[6]) + 1.0) / sqrtDist;
			vectorNew[0] *= p;
			vectorNew[1] *= p;
			vectorNew[2] *= p;
		}
	}

};

#endif // UNRAVEL_HPP