OAG Library (OpenGL) Part 1 - Setting Up the Library for an MFC Application

#ifndef OAG_MATRIX3X3_H
#define OAG_MATRIX3X3_H

namespace oag
{

	class Matrix3x3
	{
	public:
		Matrix3x3(void);
		Matrix3x3(Matrix3x3& mat);
		Matrix3x3(Matrix3x3* mat);
		~Matrix3x3(void);

		//Attributes
	public:
		float m00, m01, m02;
		float m10, m11, m12;
		float m20, m21, m22;

		//Operations
	private:
		void MakeZero();

	public:
		void MakeIdentity();
		void SetScale(double x, double y);
		void SetTranslation(double x, double y);

		//Operators
		Matrix3x3 operator = (const Matrix3x3& mat);
		Matrix3x3 operator + (const Matrix3x3& mat);
		Matrix3x3 operator += (const Matrix3x3& mat);
		Matrix3x3 operator - (const Matrix3x3& mat);
		Matrix3x3 operator -= (const Matrix3x3& mat);
		Matrix3x3 operator * (const Matrix3x3& mat);
		Matrix3x3 operator *= (const Matrix3x3& mat);
	};

	inline Matrix3x3 Matrix3x3::operator =(const oag::Matrix3x3 &mat)
	{
		m00 = mat.m00; m01 = mat.m01; m02 = mat.m02;
		m10 = mat.m10; m11 = mat.m11; m12 = mat.m12;
		m20 = mat.m20; m21 = mat.m21; m22 = mat.m22;

		return *this;
	}

	inline Matrix3x3 Matrix3x3::operator +(const oag::Matrix3x3 &mat)
	{
		Matrix3x3 result(this);

		result.m00 += mat.m00; result.m01 += mat.m01; result.m02 += mat.m02;		
		result.m10 += mat.m10; result.m11 += mat.m11; result.m12 += mat.m12;
		result.m20 += mat.m20; result.m21 += mat.m21; result.m22 += mat.m22;

		return result;
	}

	inline Matrix3x3 Matrix3x3::operator +=(const oag::Matrix3x3 &mat)
	{
		m00 += mat.m00; m01 += mat.m01; m02 += mat.m02;
		m10 += mat.m10; m11 += mat.m11; m12 += mat.m12;
		m20 += mat.m20; m21 += mat.m21; m22 += mat.m22;

		return *this;
	}

	inline Matrix3x3 Matrix3x3::operator -(const oag::Matrix3x3 &mat)
	{
		Matrix3x3 result(this);

		result.m00 -= mat.m00; result.m01 -= mat.m01; result.m02 -= mat.m02;		
		result.m10 -= mat.m10; result.m11 -= mat.m11; result.m12 -= mat.m12;
		result.m20 -= mat.m20; result.m21 -= mat.m21; result.m22 -= mat.m22;

		return result;
	}

	inline Matrix3x3 Matrix3x3::operator -=(const oag::Matrix3x3 &mat)
	{
		m00 -= mat.m00; m01 -= mat.m01; m02 -= mat.m02;
		m10 -= mat.m10; m11 -= mat.m11; m12 -= mat.m12;
		m20 -= mat.m20; m21 -= mat.m21; m22 -= mat.m22;

		return *this;
	}

	inline Matrix3x3 Matrix3x3::operator *(const oag::Matrix3x3 &mat)
	{
		Matrix3x3 result;

		result.m00 = ( m00 * mat.m00 ) + ( m01 * mat.m10 ) + ( m02 * mat.m20 );
		result.m01 = ( m00 * mat.m01 ) + ( m01 * mat.m11 ) + ( m02 * mat.m21 );
		result.m02 = ( m00 * mat.m02 ) + ( m01 * mat.m12 ) + ( m02 * mat.m22 );

		return result;
	}

	inline Matrix3x3 Matrix3x3::operator *=(const oag::Matrix3x3 &mat)
	{
		m00 = ( m00 * mat.m00 ) + ( m01 * mat.m10 ) + ( m02 * mat.m20 );
		m01 = ( m00 * mat.m01 ) + ( m01 * mat.m11 ) + ( m02 * mat.m21 );
		m02 = ( m00 * mat.m02 ) + ( m01 * mat.m12 ) + ( m02 * mat.m22 );

		return *this;
	}

};

#endif