eleni@0: #ifndef MATRIX_H_
eleni@0: #define MATRIX_H_
eleni@0: 
eleni@0: #include <iostream>
eleni@0: #include "vector.h"
eleni@0: 
eleni@0: class Matrix4x4 {
eleni@0: public:
eleni@0: 	float m[4][4];
eleni@0: 
eleni@0: 	static Matrix4x4 identity;
eleni@0: 
eleni@0: 	Matrix4x4();
eleni@0: 	Matrix4x4(	float m11, float m12, float m13, float m14,
eleni@0: 				float m21, float m22, float m23, float m24,
eleni@0: 				float m31, float m32, float m33, float m34,
eleni@0: 				float m41, float m42, float m43, float m44);
eleni@0: 
eleni@0: 	/* binary operations matrix (op) matrix */
eleni@0: 	friend Matrix4x4 operator +(const Matrix4x4 &m1, const Matrix4x4 &m2);
eleni@0: 	friend Matrix4x4 operator -(const Matrix4x4 &m1, const Matrix4x4 &m2);
eleni@0: 	friend Matrix4x4 operator *(const Matrix4x4 &m1, const Matrix4x4 &m2);
eleni@0: 
eleni@0: 	friend void operator +=(Matrix4x4 &m1, const Matrix4x4 &m2);
eleni@0: 	friend void operator -=(Matrix4x4 &m1, const Matrix4x4 &m2);
eleni@0: 	friend inline void operator *=(Matrix4x4 &m1, const Matrix4x4 &m2);
eleni@0: 
eleni@0: 	/* binary operations matrix (op) scalar and scalar (op) matrix */
eleni@0: 	friend Matrix4x4 operator *(const Matrix4x4 &mat, float scalar);
eleni@0: 	friend Matrix4x4 operator *(float scalar, const Matrix4x4 &mat);
eleni@0: 
eleni@0: 	friend void operator *=(Matrix4x4 &mat, float scalar);
eleni@0: 
eleni@0: 	inline float *operator [](int index);
eleni@0: 	inline const float *operator [](int index) const;
eleni@0: 
eleni@0: 	inline void reset_identity();
eleni@0: 
eleni@0: 	void translate(const Vector3 &trans);
eleni@0: 	void set_translation(const Vector3 &trans);
eleni@0: 
eleni@0: 	void rotate(const Vector3 &euler);			/* 3d rotation with euler angles */
eleni@0: 	void rotate(const Vector3 &axis, float angle);	/* 3d axis/angle rotation */
eleni@0: 	void set_rotation(const Vector3 &euler_angles);
eleni@0: 	void set_rotation(const Vector3 &axis, float angle);
eleni@0: 
eleni@0: 	void scale(const Vector3 &scale_vec);
eleni@0: 	void set_scaling(const Vector3 &scale_vec);
eleni@0: 
eleni@0: 	void set_column_vector(const Vector3 &vec, unsigned int col_index);
eleni@0: 	void set_row_vector(const Vector3 &vec, unsigned int row_index);
eleni@0: 	Vector3 get_column_vector(unsigned int col_index) const;
eleni@0: 	Vector3 get_row_vector(unsigned int row_index) const;
eleni@0: 
eleni@0: 	void transpose();
eleni@0: 	Matrix4x4 transposed() const;
eleni@0: 	float determinant() const;
eleni@0: 	Matrix4x4 adjoint() const;
eleni@0: 	Matrix4x4 inverse() const;
eleni@0: };
eleni@0: 
eleni@0: /* binary operations matrix (op) matrix */
eleni@0: Matrix4x4 operator +(const Matrix4x4 &m1, const Matrix4x4 &m2);
eleni@0: Matrix4x4 operator -(const Matrix4x4 &m1, const Matrix4x4 &m2);
eleni@0: Matrix4x4 operator *(const Matrix4x4 &m1, const Matrix4x4 &m2);
eleni@0: 
eleni@0: void operator +=(Matrix4x4 &m1, const Matrix4x4 &m2);
eleni@0: void operator -=(Matrix4x4 &m1, const Matrix4x4 &m2);
eleni@0: inline void operator *=(Matrix4x4 &m1, const Matrix4x4 &m2);
eleni@0: 
eleni@0: /* binary operations matrix (op) scalar and scalar (op) matrix */
eleni@0: Matrix4x4 operator *(const Matrix4x4 &mat, float scalar);
eleni@0: Matrix4x4 operator *(float scalar, const Matrix4x4 &mat);
eleni@0: 
eleni@0: void operator *=(Matrix4x4 &mat, float scalar);
eleni@0: 
eleni@0: std::ostream &operator <<(std::ostream &out, const Matrix4x4 &mat);
eleni@0: 
eleni@0: 
eleni@0: #endif
eleni@0: