i6eVector4.h

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/*
 * i6engine
 * Copyright (2016) Daniel Bonrath, Michael Baer, All rights reserved.
 *
 * This file is part of i6engine; i6engine 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 2.1 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

/*
 * A class to "transport" 3D vector
 *
 * for the math stuff use the vector of the lib (bullet, ogre...)
 *
 * its better to send only 1 "type" to the game then many
 */

#ifndef __I6ENGINE_MATH_I6EVECTOR4_H__
#define __I6ENGINE_MATH_I6EVECTOR4_H__

#include <cmath>
#include <map>
#include <string>

#include "i6engine/utils/i6eSystemParameters.h"

namespace Ogre {
        class Vector4;
} /* namespace Ogre */
class btVector4;

namespace i6e {
namespace math {

        class ISIXE_MATH_API i6eVector4 {
                static const double EPSILON;

        public:
                i6eVector4() : _w(0.0), _x(0.0), _y(0.0), _z(0.0) {
                }

                i6eVector4(const double w, const double x, const double y, const double z) : _w(w), _x(x), _y(y), _z(z) {
                }

                explicit i6eVector4(const Ogre::Vector4 & ogre);

                explicit i6eVector4(const btVector4 & bullet);

                /*
                 * \brief Constructs a vector from an attributeMap
                 *
                 * \param[in] params the attributeMap containing informations for the vector
                 * \param[in] prefix prefix of the values
                 */
                i6eVector4(const std::map<std::string, std::string> & params, const std::string & prefix);

                /*
                 * \brief Constructs a Vec4 from a string
                 */
                explicit i6eVector4(const std::string & str);

                ~i6eVector4() {
                }

                double getW() const {
                        return _w;
                }
                double getX() const {
                        return _x;
                }
                double getY() const {
                        return _y;
                }
                double getZ() const {
                        return _z;
                }

                void setW(const double w) {
                        _w = w;
                }
                void setX(const double x) {
                        _x = x;
                }
                void setY(const double y) {
                        _y = y;
                }
                void setZ(const double z) {
                        _z = z;
                }

                i6eVector4 operator+(const i6eVector4 & other) const {
                        return i6eVector4(_w + other._w, _x + other._x, _y + other._y, _z + other._z);
                }

                i6eVector4 operator-(const i6eVector4 & other) const {
                        return i6eVector4(_w - other._w, _x - other._x, _y - other._y, _z - other._z);
                }

                i6eVector4 operator*(double d) const {
                        return i6eVector4(_w * d, _x * d, _y * d, _z * d);
                }

                bool operator==(const i6eVector4 & b) const {
                        return std::abs(_x - b.getX()) < EPSILON && std::abs(_y - b.getY()) < EPSILON && std::abs(_z - b.getZ()) < EPSILON && std::abs(_w - b.getW()) < EPSILON;
                }

                bool operator!=(const i6eVector4 & other) const {
                        return !(*this == other);
                }

                Ogre::Vector4 toOgre() const;

                btVector4 toBullet() const;

                void insertInMap(const std::string & prefix, std::map<std::string, std::string> & map) const;

                std::string toString() const;

                template<class Archive>
                void serialize(Archive & ar, const unsigned int) {
                        ar & _x;
                        ar & _y;
                        ar & _z;
                        ar & _w;
                }

        private:
                double _w, _x, _y, _z;
        };

        ISIXE_MATH_API std::ostream & operator<<(std::ostream & stream, const i6eVector4 & v);

} /* namespace math */
} /* namespace i6e */

typedef i6e::math::i6eVector4 Vec4;

#endif /* __I6ENGINE_MATH_I6EVECTOR4_H__ */