Matrix2.hpp

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#pragma once

#include <etk/math/Vector2D.hpp>
#include <etk/types.hpp>
namespace etk {
    class Matrix2 {
        public:
            float m_mat[2*3];
        public:
            Matrix2();
            Matrix2(const Matrix2& _obj);
            Matrix2(float _sx,
                    float _shy,
                    float _shx,
                    float _sy,
                    float _tx,
                    float _ty);
            Matrix2(const float* _values);
            Matrix2(const double* _values);
            void identity();
            const Matrix2& operator= (const Matrix2& _obj );
            bool operator== (const Matrix2& _obj) const;
            bool  operator!= (const Matrix2& _obj) const;
            const Matrix2& operator+= (const Matrix2& _obj);
            Matrix2 operator+ (const Matrix2& _obj) const;
            const Matrix2& operator-= (const Matrix2& _obj);
            Matrix2 operator- (const Matrix2& _obj) const;
            const Matrix2& operator *= (const Matrix2& _obj);
            Matrix2 operator * (const Matrix2& _obj);
            vec2 operator * (const vec2& _point) const;
            vec2 applyScaleRotation(const vec2& _point) const;
            Matrix2 operator ~ () const;
            void flipX();
            void flipY();
            void scale(const vec2& _vect);
            void scale(float _value);
            void rotate(float _angleRad);
            void translate(const vec2& _vect);
            float determinant() const;
            void invert();
    };
    Matrix2 mat2Rotate(float _angleRad);
    Matrix2 mat2Scale(const vec2& _scale);
    Matrix2 mat2Scale(float _scale);
    Matrix2 mat2Translate(const vec2& _translate);
    Matrix2 mat2Skew(const vec2& _skew);
    std::ostream& operator <<(std::ostream& _os, const etk::Matrix2& _obj);
}
// simplify using of matrix ...
using mat2 = etk::Matrix2;