#ifndef INFINITERAY_H
#define INFINITERAY_H

#include "basics_global.h"

#include "Vector3.h"

namespace paysages {
namespace basics {

/**
 * Infinite ray (line).
 */
class BASICSSHARED_EXPORT InfiniteRay {
  public:
    InfiniteRay() = default;
    InfiniteRay(const Vector3 &origin, const Vector3 &direction);

    static InfiniteRay fromPoints(const Vector3 &point1, const Vector3 &point2);

    inline const Vector3 &getOrigin() const {
        return origin;
    }
    inline const Vector3 &getDirection() const {
        return direction;
    }

    inline double getCursor(const Vector3 &point) const {
        return point.sub(origin).dotProduct(direction);
    }
    inline Vector3 getPointAtCursor(double distance) const {
        return origin.add(direction.scale(distance));
    }

    void save(PackStream *stream) const;
    void load(PackStream *stream);

  private:
    Vector3 origin;
    Vector3 direction;
};
}
}

#endif // INFINITERAY_H