Matrix2.h

// Matrix2.h by Vasillen M. Chizhov

#pragma once
#include "util.h"
namespace myGameMathLib
{
    class Matrix2
    {
    public:
        FP _11, _12;
        FP _21, _22;

    public:
        //ctors

        Matrix2();

        Matrix2(FP value);

        Matrix2(FP _11, FP _12, FP _21, FP _22);

        Matrix2(const Matrix2& another);

    public:

        Matrix2& operator=(const Matrix2& another);

        Matrix2& operator+=(const Matrix2& another);

        Matrix2& operator-=(const Matrix2& another);

        Matrix2& operator*=(const Matrix2& another);

        Matrix2& operator*=(FP scalar);

        Matrix2& operator/=(FP scalar);

        Matrix2 operator+();

        Matrix2 operator-();

    public:

        FP det() const;

        FP trace() const;

        Matrix2 transpose() const;

        Matrix2 inverse() const;

    public:
        static Matrix2 rotation(FP angle);

        static Matrix2 shearX(FP shearX);

        static Matrix2 shearY(FP shearY);

        static Matrix2 scaling(FP sx, FP sy);

    public:

        static Matrix2 Identity;
        static Matrix2 Zero;

    };

    bool operator==(const Matrix2& mat1, const Matrix2& mat2);

    bool operator!=(const Matrix2& mat1, const Matrix2& mat2);

    Matrix2 operator+(const Matrix2& mat1, const Matrix2& mat2);

    Matrix2 operator-(const Matrix2& mat1, const Matrix2& mat2);

    Matrix2 operator*(const Matrix2& mat1, const Matrix2& mat2);

    Matrix2 operator*(const Matrix2& mat, FP scalar);

    Matrix2 operator*(FP scalar, const Matrix2& mat);

    Matrix2 operator/(const Matrix2& mat, FP scalar);

    Matrix2 operator/(FP scalar, const Matrix2& mat);

    FP det(const Matrix2& mat);

    FP trace(const Matrix2& mat);

    Matrix2 transpose(const Matrix2& mat);

    void transpose(Matrix2& mat);

    Matrix2 inverse(const Matrix2& mat);

    void inverse(Matrix2& mat);

    std::ostream& operator<<(std::ostream& os, const Matrix2& mat);


}