#include "Ray.h"

namespace cam {
Ray::Ray(const util::Vec3& x0, const util::Vec3& d, float tmin, float tmax, bool normalize)
    : x0_(x0)
    , tmin_(tmin)
    , tmax_(tmax)
    , normalize_(normalize)
{
    if (normalize_)
        d_ = d.normalize();
    else
        d_ = d;
}
util::Vec3 Ray::operator()(float t) const
{
    return x0_ + (d_ * t);
}
bool Ray::in_range(float t) const
{
    return t <= tmax_ && t >= tmin_;
}
std::ostream& operator<<(std::ostream& os, const cam::Ray& rhs)
{
    os << "(" << rhs.x0_ << " " << rhs.d_ << ")";
    return os;
}
}