--- /dev/null
+// fgfx.cxx -- Sound effect management class implementation
+//
+// Started by David Megginson, October 2001
+// (Reuses some code from main.cxx, probably by Curtis Olson)
+//
+// Copyright (C) 2001 Curtis L. Olson - curt@flightgear.org
+//
+// 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 2 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, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+
+#include "fg_fx.hxx"
+
+// FIXME: remove direct dependencies
+#include <Controls/controls.hxx>
+#include <FDM/flight.hxx>
+#include <Main/fg_props.hxx>
+
+
+FGFX::FGFX ()
+ : _is_cranking(false),
+ _is_stalling(false),
+ _is_rumbling(false),
+ _engine(0),
+ _crank(0),
+ _wind(0),
+ _stall(0),
+ _rumble(0),
+ _flaps(0),
+ _squeal(0),
+ _click(0)
+{
+}
+
+FGFX::~FGFX ()
+{
+ // FIXME: is this right, or does the
+ // sound manager assume pointer ownership?
+ delete _engine;
+ delete _crank;
+ delete _wind;
+ delete _stall;
+ delete _rumble;
+
+ delete _flaps;
+ delete _squeal;
+ delete _click;
+}
+
+
+void
+FGFX::init ()
+{
+ FGSoundMgr * mgr = globals->get_soundmgr();
+
+ //
+ // Create and add the engine sound
+ //
+ _engine =
+ new FGSimpleSound(fgGetString("/sim/sounds/engine", "Sounds/wasp.wav"));
+ mgr->add(_engine, "engine loop");
+ mgr->play_looped("engine loop");
+
+ SG_LOG( SG_GENERAL, SG_INFO,
+ "Rate = " << _engine->get_sample()->getRate()
+ << " Bps = " << _engine->get_sample()->getBps()
+ << " Stereo = " << _engine->get_sample()->getStereo() );
+
+
+ //
+ // Create and add the cranking sound.
+ //
+ _crank =
+ new FGSimpleSound(fgGetString("/sim/sounds/cranking",
+ "Sounds/cranking.wav"));
+ mgr->add(_crank, "crank");
+ _crank->set_pitch(1.5);
+ _crank->set_volume(0.25);
+
+
+ //
+ // Create and add the wind noise.
+ //
+ _wind =
+ new FGSimpleSound(fgGetString("/sim/sounds/wind", "Sounds/wind.wav"));
+ mgr->add(_wind, "wind");
+ mgr->play_looped("wind");
+
+
+ //
+ // Create and add the stall noise.
+ //
+ _stall = new FGSimpleSound(fgGetString("/sim/sounds/stall",
+ "Sounds/stall.wav"));
+ mgr->add(_stall, "stall");
+
+ //
+ // Create and add the rumble noise.
+ //
+ _rumble = new FGSimpleSound(fgGetString("/sim/sounds/rumble",
+ "Sounds/rumble.wav"));
+ mgr->add(_rumble, "rumble");
+
+ //
+ // Create and add the squeal noise.
+ //
+ _squeal = new FGSimpleSound(fgGetString("/sim/sounds/squeal",
+ "Sounds/squeal.wav"));
+ mgr->add(_squeal, "squeal");
+
+ //
+ // Create and add the click noise.
+ _click = new FGSimpleSound(fgGetString("/sim/sounds/click",
+ "Sounds/click.wav"));
+ mgr->add(_click, "click");
+}
+
+void
+FGFX::bind ()
+{
+}
+
+void
+FGFX::unbind ()
+{
+}
+
+void
+FGFX::update ()
+{
+ FGSoundMgr * mgr = globals->get_soundmgr();
+
+
+ ////////////////////////////////////////////////////////////////////
+ // Update the engine sound.
+ ////////////////////////////////////////////////////////////////////
+
+ if (fgGetBool("/engines/engine[0]/running")) { // FIXME
+ // pitch corresponds to rpm
+ // volume corresponds to manifold pressure
+
+ double rpm_factor;
+ if (cur_fdm_state->get_engine(0) != NULL)
+ rpm_factor = cur_fdm_state->get_engine(0)->get_RPM() / 2500.0;
+ else
+ rpm_factor = 1.0;
+
+ double pitch = 0.3 + rpm_factor * 3.0;
+
+ // don't run at absurdly slow rates -- not realistic
+ // and sounds bad to boot. :-)
+ if (pitch < 0.7)
+ pitch = 0.7;
+ if (pitch > 5.0)
+ pitch = 5.0;
+
+ double mp_factor;
+ if (cur_fdm_state->get_engine(0) != NULL)
+ mp_factor = cur_fdm_state->get_engine(0)->get_Manifold_Pressure() / 100;
+ else
+ mp_factor = 0.3;
+
+ double volume = 0.15 + mp_factor / 2.0;
+
+ if (volume < 0.15)
+ volume = 0.15;
+ if (volume > 0.5)
+ volume = 0.5;
+
+ _engine->set_pitch( pitch );
+ _engine->set_volume( volume );
+ } else {
+ _engine->set_pitch(0.0);
+ _engine->set_volume(0.0);
+ }
+
+
+ ////////////////////////////////////////////////////////////////////
+ // Update the cranking sound.
+ ////////////////////////////////////////////////////////////////////
+
+ if (fgGetBool("/engines/engine[0]/cranking")) { // FIXME
+ if(!_is_cranking) {
+ globals->get_soundmgr()->play_looped("crank");
+ _is_cranking = true;
+ }
+ } else {
+ if(_is_cranking) {
+ globals->get_soundmgr()->stop("crank");
+ _is_cranking = false;
+ }
+ }
+
+
+ ////////////////////////////////////////////////////////////////////
+ // Update the wind noise.
+ ////////////////////////////////////////////////////////////////////
+
+ float rel_wind = cur_fdm_state->get_V_rel_wind();
+ float volume = rel_wind/300.0; // FIXME!!!
+ _wind->set_volume(volume);
+
+
+ // TODO: stall
+
+ // TODO: rumble
+
+ // TODO: flaps
+
+ // TODO: squeal
+
+ // TODO: click
+
+}
+
+// end of fg_fx.cxx
--- /dev/null
+// fgfx.hxx -- Sound effect management class
+//
+// Started by David Megginson, October 2001
+// (Reuses some code from main.cxx, probably by Curtis Olson)
+//
+// Copyright (C) 2001 Curtis L. Olson - curt@flightgear.org
+//
+// 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 2 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, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+
+#ifndef __FGFX_HXX
+#define __FGFX_HXX 1
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <simgear/compiler.h>
+#include <Main/fgfs.hxx>
+#include <Main/globals.hxx>
+
+#include "soundmgr.hxx"
+
+
+/**
+ * Generator for FlightGear sound effects.
+ *
+ * This module uses FGSoundMgr to generate sound effects based
+ * on current flight conditions. The sound manager must be initialized
+ * before this object is.
+ */
+class FGFX : public FGSubsystem
+{
+
+public:
+
+ FGFX ();
+ virtual ~FGFX ();
+
+ virtual void init ();
+ virtual void bind ();
+ virtual void unbind ();
+ virtual void update ();
+
+private:
+ bool _is_cranking;
+ bool _is_stalling;
+ bool _is_rumbling;
+
+ // looped sounds
+ FGSimpleSound * _engine;
+ FGSimpleSound * _crank;
+ FGSimpleSound * _wind;
+ FGSimpleSound * _stall;
+ FGSimpleSound * _rumble;
+
+ // one-off sounds
+ FGSimpleSound * _flaps;
+ FGSimpleSound * _squeal;
+ FGSimpleSound * _click;
+
+};
+
+
+#endif
+
+// end of fgfx.hxx
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