Interval.hpp

#include <limits>
#include "Common.hpp"
 
#ifndef __INTERVAL_HPP__
    #define __INTERVAL_HPP__
 
namespace Raytracer::Utils
{
    class Interval {
      private:
        double _min = +std::numeric_limits<double>::infinity();
        double _max = -std::numeric_limits<double>::infinity();
 
      public:
        Interval() = default;
        Interval(double min, double max);
        Interval(const Interval &a, const Interval &b);
        double size() const;
        bool contains(double x) const;
        bool surrounds(double x) const;
        double clamp(double x) const;
        Interval expand(double x) const;
        static const Interval Empty;
        static const Interval Universe;
        GET_SET(double, min)
        GET_SET(double, max)
    };
 
    Utils::Interval operator+(const Utils::Interval &value, double offset);
    Utils::Interval operator+(double offset, const Utils::Interval &value);
} // namespace Raytracer::Utils
 
#endif /* __INTERVAL_HPP__ */