+private:
+ enum Flags
+ {
+ IDENTITY = 0,
+ TRANSLATE = 1,
+ ROTATE = 2,
+ SCALE = 4,
+ ARBITARY = 8
+ };
+
+ double matrix[16];
+ unsigned flags;
+
+public:
+ Matrix();
+ Matrix(const float *);
+ Matrix(const double *);
+private:
+ void check_flags();
+
+public:
+ const double *data() const { return matrix; }
+
+ void multiply(const Matrix &);
+ void translate(double, double, double);
+ void translate(const Vector3 &t) { translate(t.x, t.y, t.z); }
+ void rotate(double, double, double, double);
+ void rotate(double a, const Vector3 &x) { rotate(a, x.x, x.y, x.z); }
+ void rotate_deg(double, double, double, double);
+ void rotate_deg(double a, const Vector3 & x) { rotate_deg(a, x.x, x.y, x.z); }
+ void scale(double);
+ void scale(double, double, double);
+
+ Matrix operator*(const Matrix &) const;
+ Matrix &operator*=(const Matrix &);
+ Vector4 operator*(const Vector4 &) const;
+ double operator[](unsigned) const;
+
+ static Matrix translation(double, double, double);
+ static Matrix translation(const Vector3 &t) { return translation(t.x, t.y, t.z); }
+ static Matrix rotation(double, double, double, double);
+ static Matrix rotation(double a, const Vector3 &x) { return rotation(a, x.x, x.y, x.z); }
+ static Matrix rotation_deg(double, double, double, double);
+ static Matrix rotation_deg(double a, const Vector3 &x) { return rotation_deg(a, x.x, x.y, x.z); }
+ static Matrix scaling(double);
+ static Matrix scaling(double, double, double);
+
+ static Matrix ortho(double, double, double, double, double, double);
+ static Matrix ortho_centered(double, double);
+ static Matrix ortho_bottomleft(double, double);
+ static Matrix ortho_topleft(double, double);
+ static Matrix frustum(double, double, double, double, double, double);
+ static Matrix frustum_centered(double, double, double, double);
+ static Matrix perspective(double, double, double, double);