FMath/FMMatrix33.h

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/*
    Copyright (C) 2005-2006 Feeling Software Inc.
    MIT License: http://www.opensource.org/licenses/mit-license.php
*/

#ifndef _FM_MATRIX33_H_
#define _FM_MATRIX33_H_

class FCOLLADA_EXPORT FMMatrix33
{
public:
    float m[3][3];  
    FMMatrix33(float* _m);
    
    #ifndef _DEBUG
    FMMatrix33() {}
    #else
    FMMatrix33() { memset(m, 55, 3 * 3 * sizeof(float)); }
    #endif 

    operator float*() { return &m[0][0]; }

    operator const float*() const { return &m[0][0]; }

    float* operator[](int a) { return m[a]; }

    FMMatrix33& operator=(const FMMatrix33& copy);

    FMMatrix33 Transposed() const;

    FMMatrix33 Inverted() const;

public:
    static FMMatrix33 identity; 
    static FMMatrix33 RotationMatrix(float angle);

    static FMMatrix33 TranslationMatrix(float tx, float ty);
    
    static FMMatrix33 ScaleMatrix(float sx, float sy);

    static inline FMMatrix33 TranslationMatrix(FMVector2 translation) { return TranslationMatrix(translation.u, translation.v); }

    static inline FMMatrix33 ScaleMatrix(FMVector2 scale) { return ScaleMatrix(scale.u, scale.v); }
};

FMMatrix33 FCOLLADA_EXPORT operator*(const FMMatrix33& m1, const FMMatrix33& m2);

#endif // _FM_MATRIX33_H_

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