light.hpp

#pragma once

#include "entity.hpp"
#include "physics/photon.hpp"

namespace rt{

class Light : public Entity{
public:
    enum Type{
        Constant,
        Sinus,
        Quadratic
    };
    Light(const vector & pos, Type type = Quadratic);

    virtual double distance(const vector & from) const = 0;

    virtual const rt::photon & photon(const vector & from) const = 0;

    double energy(double distance) const;

private:
    Type _type;
};

}