Units.h

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#pragma once
#include <cmath>
 
namespace art
{
    class Length
    {
    public:
        friend Length Pixels(double pixels);
        friend Length Inches(double inches);
        friend Length Feet(double feet);
        friend Length Meters(double meters);
        friend Length Centimeters(double centimeters);
        friend Length Millimeters(double millimeters);
        friend Length Tiles(double tiles);
 
        double pixels();
        double inches();
        double feet();
        double meters();
        double centimeters();
        double millimeters();
        double tiles();
 
        Length();
        Length(double f);
 
        Length operator=(double const &f);
 
        operator double();
 
    private:
        double m_value{0.0};
    };
 
    Length Pixels(double pixels);
    Length Inches(double inches);
    Length Feet(double feet);
    Length Meters(double meters);
    Length Centimeters(double centimeters);
    Length Millimeters(double millimeters);
    Length Tiles(double tiles);
 
    class Angle
    {
    public:
        friend Angle Degrees(double degrees);
        friend Angle Radians(double radians);
        friend Angle Revolutions(double revolutions);
 
        double degrees();
        double radians();
        double revolutions();
 
        Angle();
        Angle(double f);
 
        void constrain();
 
        Angle operator=(double const &f);
        operator double();
 
    private:
        double m_value{0.0};
    };
 
    Angle Degrees(double degrees);
    Angle Radians(double radians);
    Angle Revolutions(double revolutions);
 
    Angle shortestTurnPath(const Angle target);
 
} // namespace art