lissajous.h

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/*                                                    */
/* lissajous.h - Lissajous curves                     */
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/* Copyright 2020 Pierre Abbat.
 * This file is part of Wolkenbase.
 *
 * Wolkenbase 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.
 *
 * Wolkenbase 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 Wolkenbase. If not, see <http://www.gnu.org/licenses/>.
 */
#include "point.h"

class Lissajous
/* Generates a Lissajous curve which is used to move a ball at a maximum speed
 * which is approximately independent of the window size, with a slope close
 * to 1.
 */
{
public:
  Lissajous();
  void test();
  void resize(int w,int h);
  xy move();
private:
  static int num[],denom[];
  int width,height,xphase,yphase,xperiod,yperiod,step;
};