60e0204fe8
* Add new trigger types: raise, fall * Add new trigger offset parameter * Add new volume/pitch types: inv, abs, sqrt * Add initial support for multiple events to intervere in a single sound (by using the same name, see the crank section of 172-sound.xml) * Cached the volume/pitch type fucntions (No more if's inside the loops in update())
101 lines
2.1 KiB
C++
101 lines
2.1 KiB
C++
// fg_sound.hxx -- Sound class implementation
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//
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// Started by Erik Hofman, February 2002
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//
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// Copyright (C) 2002 Erik Hofman - erik@ehofman.com
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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// $Id$
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#ifndef __FGSOUND_HXX
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#define __FGSOUND_HXX 1
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <simgear/compiler.h>
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#include <Main/fgfs.hxx>
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#include <Main/globals.hxx>
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#include "soundmgr.hxx"
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/**
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* Class for handling one sound.
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*
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*/
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class FGSound : public FGSubsystem
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{
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public:
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FGSound(const SGPropertyNode *);
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virtual ~FGSound();
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virtual void init ();
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virtual void bind ();
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virtual void unbind ();
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virtual void update (int dt);
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protected:
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enum { MAXPROP=5 };
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enum { ONCE=0, LOOPED };
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enum { LEVEL=0, INVERTED, FLIPFLOP, RAISE, FALL };
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// Sound properties
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typedef struct {
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const SGPropertyNode * prop;
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double (*fn)(double);
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double factor;
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double offset;
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double min;
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double max;
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bool subtract;
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} _snd_prop;
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#if 0
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// Sound source (distance, horizontal position in degrees and
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// vertical position in degrees)
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typedef struct {
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float dist;
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float hor;
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float vert;
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} _pos_prop;
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#endif
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private:
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const SGPropertyNode * _node;
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FGSimpleSound * _sample;
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const SGPropertyNode * _property;
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bool _active;
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int _mode;
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int _type;
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string _name;
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double _factor;
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double _offset;
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vector<_snd_prop> _volume;
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vector<_snd_prop> _pitch;
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};
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#endif
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