FMath/FMMatrix44.h

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

#ifndef _FM_MATRIX44_H_
#define _FM_MATRIX44_H_

class FCOLLADA_EXPORT FMMatrix44
{
public:
    float m[4][4];  
    FMMatrix44(const float* _m);

    #ifndef _DEBUG
    FMMatrix44() {}
    #else
    FMMatrix44() { memset(m, 55, 16 * sizeof(float)); }
    #endif 

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

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

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

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

    FMMatrix44& operator=(const FMMatrix44& copy);

    FMMatrix44 Transposed() const;

    FMMatrix44 Inverted() const;
    
    void Decompose(FMVector3& Scale, FMVector3& Rotation, FMVector3& Translation, float& inverted) const;

    FMVector3 TransformCoordinate(const FMVector3& coordinate) const;

    FMVector3 TransformVector(const FMVector3& v) const;

    FMVector3 GetTranslation() const;

public:
    static FMMatrix44 Identity; 
    static FMMatrix44 TranslationMatrix(const FMVector3& translation);

    static FMMatrix44 AxisRotationMatrix(const FMVector3& axis, float angle);
};

FMMatrix44 FCOLLADA_EXPORT operator*(const FMMatrix44& m1, const FMMatrix44& m2);

bool IsEquivalent(const FMMatrix44& m1, const FMMatrix44& m2);

inline bool operator==(const FMMatrix44& m1, const FMMatrix44& m2) { return IsEquivalent(m1, m2); }

typedef vector<FMMatrix44> FMMatrix44List;

#endif // _FM_MATRIX44_H_

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