#ifndef UNRAVELHEART3D_HPP
#define UNRAVELHEART3D_HPP

#include "../AttractorKernel.hpp"

#include <cmath>

class UnravelHeart3D : public AttractorKernel {
public:
	UnravelHeart3D():
		AttractorKernel(3, 8) {}

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

	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 x = vectorNew[0] / parameters[6];
		const double y = vectorNew[1] / parameters[6];
		const double z = vectorNew[2] / parameters[6];
		const double dist = x*x + y*y + 2.0*z*z;

		if(parameters[7] * dist - parameters[7] > x*x*y*y*y) {
			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