D:/Uni/8.Semester/InfoVis/Demo/source/Util/Vector4.h

#ifndef __VECTOR4_H__
#define __VECTOR4_H__

#include "Vector3.h"

class Vector4
{
public:
        // default constructor, no initialization
        Vector4();

        // constructors with initialization
        Vector4(const float x, const float y, const float z, const float w);
        Vector4(const Vector4& other);

        // assignment operator
        const Vector4& operator=(const Vector4& other);

        // comparison operators
        bool operator==(const Vector4& other) const;
        bool operator!=(const Vector4& other) const;
        bool operator<(const Vector4& other) const;

        // negation operator
        const Vector4 operator-() const;

        // addition
        const Vector4 operator+(const Vector4& other) const;
        const Vector4& operator+=(const Vector4& other);

        // subtraction
        const Vector4 operator-(const Vector4& other) const;
        const Vector4& operator-=(const Vector4& other);

        // multiplication with another vector
        const Vector4 operator*(const Vector4& other) const;
        const Vector4& operator*=(const Vector4& other);

        // multiplication with scalar
        const Vector4 operator*(const float scalar) const;
        const Vector4& operator*=(const float scalar);

        // division by another vector
        const Vector4 operator/(const Vector4& other) const;
        const Vector4& operator/=(const Vector4& other);

        // division by scalar
        const Vector4 operator/(const float scalar) const;
        const Vector4& operator/=(const float scalar);

        // methods
        float Length() const;
        float SquaredLength() const;
        float DotProduct(const Vector4& other) const;
        void Normalize();

    Vector3 ToVector3(void) const;

public:
        static const Vector4 ZERO;
        static const Vector4 X_AXIS;
        static const Vector4 Y_AXIS;
    static const Vector4 Z_AXIS;
        static const Vector4 W_AXIS;

        union
        {
                struct
                {
                        float comp[4];
                };

                struct
                {
                        float x;
                        float y;
                        float z;
                        float w;
                };
        };
};

#endif //__VECTOR4_H__

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