Trajectory.h

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#ifndef FASTSIM_TRAJECTORY_H
#define FASTSIM_TRAJECTORY_H

#include <memory>

#include "DataFormats/Math/interface/LorentzVector.h"


// Author: L. Vanelderen, S. Kurz
// Date: 29 May 2017


namespace fastsim
{
    class SimplifiedGeometry;
    class BarrelSimplifiedGeometry;
    class ForwardSimplifiedGeometry;
    class Particle;
    

    class Trajectory
    {
        public:

        static std::unique_ptr<Trajectory> createTrajectory(const fastsim::Particle & particle, const double magneticFieldZ);


        virtual bool crosses(const BarrelSimplifiedGeometry & layer) const = 0;

        const math::XYZTLorentzVector & getPosition(){return position_;}

        const math::XYZTLorentzVector & getMomentum(){return momentum_;}


        double nextCrossingTimeC(const SimplifiedGeometry & layer, bool onLayer = false) const;


        double nextCrossingTimeC(const ForwardSimplifiedGeometry & layer, bool onLayer = false) const;


        virtual double nextCrossingTimeC(const BarrelSimplifiedGeometry & layer, bool onLayer = false) const = 0;


        virtual void move(double deltaTimeC) = 0;
    virtual ~Trajectory();

        protected:

        Trajectory(const fastsim::Particle & particle);

        math::XYZTLorentzVector position_;  
        math::XYZTLorentzVector momentum_;  
    };
}

#endif