File indexing completed on 2024-04-28 05:43:15 

0001 /***************************************************************************
0002  *   Copyright (C) 2003-2004 by David Saxton                               *
0003  *   david@bluehaze.org                                                    *
0004  *                                                                         *
0005  *   This program is free software; you can redistribute it and/or modify  *
0006  *   it under the terms of the GNU General Public License as published by  *
0007  *   the Free Software Foundation; either version 2 of the License, or     *
0008  *   (at your option) any later version.                                   *
0009  ***************************************************************************/
0010 
0011 #ifndef ELEMENTSIGNAL_H
0012 #define ELEMENTSIGNAL_H
0013 
0014 /**
0015 @short Provides different signals
0016 @author David Saxton
0017 */
0018 class ElementSignal
0019 {
0020 public:
0021     enum Type { st_sinusoidal, st_square, st_sawtooth, st_triangular };
0022     ElementSignal();
0023     ~ElementSignal();
0024 
0025     void setStep(Type type, double frequency);
0026     /**
0027      * Advances the timer, returns amplitude (between -1 and 1)
0028      */
0029     double advance(double delta);
0030 
0031 protected:
0032     Type m_type;
0033     double m_time;
0034     double m_frequency;
0035     double m_omega; // Used for sinusoidal signal
0036 };
0037 
0038 #endif