/*
 * line.hpp -- line description
 *
 * Copyright (c) 2013-2018 David Demelier <markand@malikania.fr>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef MALIKANIA_CLIENT_LINE_HPP
#define MALIKANIA_CLIENT_LINE_HPP

/**
 * \file line.hpp
 * \brief line description.
 */

namespace mlk {

namespace client {

/**
 * \brief line description.
 *
 * A line has an origin (x, y) and a destination (x, y).
 */
class line {
private:
    int m_x1;
    int m_y1;
    int m_x2;
    int m_y2;

public:
    /**
     * Construct a line.
     *
     * \param x1 the first x
     * \param y1 the first y
     * \param x2 the second x
     * \param y2 the second y
     */
    inline line(int x1 = 0, int y1 = 0, int x2 = 0, int y2 = 0) noexcept
        : m_x1(x1)
        , m_y1(y1)
        , m_x2(x2)
        , m_y2(y2)
    {
    }

    /**
     * Get the first x.
     *
     * \return the x1
     */
    inline int x1() const noexcept
    {
        return m_x1;
    }

    /**
     * Get the first y.
     *
     * \return the y1
     */
    inline int y1() const noexcept
    {
        return m_y1;
    }

    /**
     * Get the second x.
     *
     * \return the x2
     */
    inline int x2() const noexcept
    {
        return m_x2;
    }

    /**
     * Get the second y.
     *
     * \return the y2
     */
    inline int y2() const noexcept
    {
        return m_y2;
    }
};

/**
 * Compare equality.
 *
 * \param l1 the first line
 * \param l2 the second line
 * \return true if they equal
 */
inline bool operator==(const line& l1, const line& l2) noexcept
{
    return l1.x1() == l2.x1() && l1.x2() == l2.x2() && l1.y1() == l2.y1() && l1.y2() == l2.y2();
}

/**
 * Compare equality.
 *
 * \param l1 the first line
 * \param l2 the second line
 * \return false if they equal
 */
inline bool operator!=(const line& l1, const line& l2) noexcept
{
    return !(l1 == l2);
}

} // !client

} // !mlk

#endif // !MALIKANIA_CLIENT_LINE_HPP