Vec2d.h

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/*
* True Reality Open Source Game and Simulation Engine
* Copyright © 2021 Acid Rain Studios LLC
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 3.0 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* @author Maxim Serebrennik
*/

#pragma once

#include <trBase/Export.h>

#include <trUtil/StringUtils.h>
#include <trUtil/Math.h>

#include <osg/Vec2d>

#include <iostream>
#include <string>

namespace osg
{
    class Vec2f;
}

namespace trBase
{
    class Vec2f;

    class TR_BASE_EXPORT Vec2d
    {
    public:

        using value_type = double;

        const static int NUM_OF_COMPONENTS;

        Vec2d();

        Vec2d(value_type x, value_type y);

        Vec2d(const osg::Vec2d &v);

        Vec2d(const osg::Vec2f &v);

        const osg::Vec2d& GetOSGVector() const;

        value_type Length() const;

        value_type Length2() const;

        value_type Normalize();

        value_type& X();

        value_type& Y();

        value_type X() const;

        value_type Y() const;

        void Set(value_type x, value_type y);

        void Lerp(const Vec2d& to, value_type alpha);

        Vec2d Lerp(const Vec2d& from, const Vec2d& to, value_type alpha);

        std::string ToString(int precision = -1);

        value_type* Ptr();

        const value_type* Ptr() const;

        value_type& operator [] (int i);

        value_type operator [] (int i) const;

        void operator = (const Vec2d& v);

        void operator = (const Vec2f& v);

        void operator = (const osg::Vec2d& v);

        bool operator == (const Vec2d& v) const;

        bool operator != (const Vec2d& v) const;

        bool operator <  (const Vec2d& v) const;

        bool operator >  (const Vec2d& v) const;

        value_type operator * (const Vec2d& rhs) const;

        const Vec2d operator * (value_type rhs) const;

        Vec2d& operator *= (value_type rhs);

        const Vec2d operator / (value_type rhs) const;

        Vec2d& operator /= (value_type rhs);

        const Vec2d operator + (const Vec2d& rhs) const;

        Vec2d& operator += (const Vec2d& rhs);

        const Vec2d operator - (const Vec2d& rhs) const;

        Vec2d& operator -= (const Vec2d& rhs);

        const Vec2d operator - () const;

        operator osg::Vec2d () const;

        operator osg::Vec2d& ();

        operator const osg::Vec2d& () const;

        operator osg::Vec2d* ();

    protected:

        osg::Vec2d mVec;
    };

    TR_BASE_EXPORT std::ostream& operator << (std::ostream& ios, const Vec2d& vec);

    TR_BASE_EXPORT Vec2d ComponentMultiply(const Vec2d& lhs, const Vec2d& rhs);

    TR_BASE_EXPORT Vec2d ComponentDivide(const Vec2d& lhs, const Vec2d& rhs);
}