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46 lines
1.2 KiB
46 lines
1.2 KiB
/***************************************************************************
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* Copyright (C) 2003-2004 by David Saxton *
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* david@bluehaze.org *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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***************************************************************************/
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#ifndef ELEMENTSIGNAL_H
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#define ELEMENTSIGNAL_H
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/**
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@short Provides different signals
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@author David Saxton
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*/
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class ElementSignal
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{
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public:
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enum Type
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{
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st_sinusoidal,
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st_square,
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st_sawtooth,
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st_triangular
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};
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ElementSignal();
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~ElementSignal();
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void setStep( double delta, Type type, double frequency );
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/**
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* Advances the timer, returns amplitude (between -1 and 1)
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*/
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double advance();
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protected:
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Type m_type;
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double m_time;
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double m_frequency;
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double m_delta;
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double m_omega; // Used for sinusoidal signal
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};
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#endif
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