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#ifndef __SEXYMATRIX_H__
#define __SEXYMATRIX_H__
#include "SexyVector.h"
namespace Sexy
{
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
class SexyMatrix3
{
public:
union
{
float m[3][3];
struct
{
float m00, m01, m02;
float m10, m11, m12;
float m20, m21, m22;
};
};
public:
SexyMatrix3();
void ZeroMatrix();
void LoadIdentity();
SexyVector2 operator*(const SexyVector2 &theVec) const;
SexyVector3 operator*(const SexyVector3 &theVec) const;
SexyMatrix3 operator*(const SexyMatrix3 &theMat) const;
const SexyMatrix3& operator*=(const SexyMatrix3 &theMat);
};
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
class SexyTransform2D : public SexyMatrix3
{
public:
SexyTransform2D();
SexyTransform2D(bool loadIdentity);
SexyTransform2D(const SexyMatrix3& theMatrix);
const SexyTransform2D& operator=(const SexyMatrix3 &theMat);
void Translate(float tx, float ty);
// Rotate has been replaced by RotateRad.
// NOTE: If you had Rotate(angle) you should now use RotateRad(-angle).
// This is to make positive rotations go counter-clockwise when using screen coordinates.
void RotateRad(float rot);
void RotateDeg(float rot);
void Scale(float sx, float sy);
};
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
class Transform
{
protected:
mutable SexyTransform2D mMatrix;
mutable bool mNeedCalcMatrix;
void MakeComplex();
void CalcMatrix() const;
public:
bool mComplex, mHaveRot, mHaveScale;
float mTransX1, mTransY1, mTransX2, mTransY2;
float mScaleX, mScaleY;
float mRot;
public:
Transform();
void Reset();
void Translate(float tx, float ty);
void RotateRad(float rot);
void RotateDeg(float rot);
void Scale(float sx, float sy);
const SexyTransform2D& GetMatrix() const;
};
} // namespace Sexy
#endif
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