ray.hpp

#ifndef PASTELGEOMETRY_RAY_HPP
#define PASTELGEOMETRY_RAY_HPP

#include "pastel/geometry/shape/ray.h"

#include "pastel/sys/vector.h"
#include "pastel/sys/vector/vector_tools.h"

namespace Pastel
{

    template <typename Real, integer N>
    Ray<Real, N>::Ray()
        : line_()
    {
    }

    template <typename Real, integer N>
    Ray<Real, N>::Ray(
        const Vector<Real, N>& position,
        const Vector<Real, N>& unitDirection)
        : line_(position, unitDirection)
    {
    }

    template <typename Real, integer N>
    Ray<Real, N>::~Ray()
    {
        PASTEL_STATIC_ASSERT(N == Dynamic || N > 0);
    }

    template <typename Real, integer N>
    void Ray<Real, N>::swap(Ray<Real, N>& that)
    {
        line_.swap(that.line_);
    }

    template <typename Real, integer N>
    Ray<Real, N>& Ray<Real, N>::operator+=(
        const Vector<Real, N>& translation)
    {
        line_ += translation;
        return *this;
    }

    template <typename Real, integer N>
    Ray<Real, N> Ray<Real, N>::operator+(
        const Vector<Real, N>& translation) const
    {
        Ray<Real, N> result(*this);
        result += translation;
        return result;
    }

    template <typename Real, integer N>
    Ray<Real, N>& Ray<Real, N>::operator-=(
        const Vector<Real, N>& translation)
    {
        line_ -= translation;
        return *this;
    }

    template <typename Real, integer N>
    Ray<Real, N> Ray<Real, N>::operator-(
        const Vector<Real, N>& translation) const
    {
        Ray<Real, N> result(*this);
        result -= translation;
        return result;
    }

    template <typename Real, integer N>
    void Ray<Real, N>::set(
        const Vector<Real, N>& position,
        const Vector<Real, N>& unitDirection)
    {
        line_.set(position, unitDirection);
    }

    template <typename Real, integer N>
    void Ray<Real, N>::setPosition(
        const Vector<Real, N>& position)
    {
        line_.setPosition(position);
    }

    template <typename Real, integer N>
    const Vector<Real, N>& Ray<Real, N>::position() const
    {
        return line_.position();
    }

    template <typename Real, integer N>
    void Ray<Real, N>::setDirection(
        const Vector<Real, N>& unitDirection)
    {
        line_.setDirection(unitDirection);
    }

    template <typename Real, integer N>
    const Vector<Real, N>& Ray<Real, N>::direction() const
    {
        return line_.direction();
    }

    template <typename Real, integer N>
    const Vector<Real, N>& Ray<Real, N>::inverseDirection() const
    {
        return line_.inverseDirection();
    }

    template <typename Real, integer N>
    Line<Real, N>& Ray<Real, N>::line()
    {
        return line_;
    }

    template <typename Real, integer N>
    const Line<Real, N>& Ray<Real, N>::line() const
    {
        return line_;
    }

    template <typename Real, integer N>
    Vector<Real, N> Ray<Real, N>::at(const Real& t) const
    {
        return line_.at(t);
    }

}

#endif