refactored mathw

[physics.git] / src / mathw.h

/*
 *  Copyright (C) 2008 Patrik Gornicz, Gornicz_P (at) hotmail (dot) com.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef MATHW_H
#define MATHW_H

#include <math.h>
#include "Vector2.h"


/// ***** Public Variables *****

static const float PI = 3.1415926535897;

/// ***** Header Methods *****

int mod(int, int);

/// Vector2 Math

Vector2 vectorToLine
(
  const Vector2& vec,
  float x1,
  float y1,
  float x2,
  float y2
);

//Vector2 lineIntersection(Vector2&, Vector2&, Vector2&, Vector2&) const;

//void Rotate(float rads);

float dot(const Vector2&, const Vector2&);
Vector2 perp(const Vector2&);

//TODO float projectionCoeff(const Vector2&, const Vector2&) const;
//TODO void projection(const Vector2&, const Vector2&);

#endif // MATHW_H