fly/flightgear
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Added support for pitch and volume envelopes and tied them to the

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throttle setting.
This commit is contained in:
curt 1998-09-25 16:02:07 +00:00
parent cc0d582e26
commit be2f27bd66
1 changed files with 24 additions and 4 deletions
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28
Main/GLUTmain.cxx
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@ -53,11 +53,8 @@
#include <Include/general.h>
#include <Aircraft/aircraft.h>
//#include <Astro/moon.hxx>
//#include <Astro/planets.hxx>
#include <Astro/sky.hxx>
#include <Astro/stars.hxx>
//#include <Astro/sun.hxx>
#include <Astro/solarsystem.hxx>
#ifdef ENABLE_AUDIO_SUPPORT
@ -104,6 +101,8 @@ int panel_hist = 0;
// Global structures for the Audio library
#ifdef ENABLE_AUDIO_SUPPORT
slEnvelope pitch_envelope ( 1, SL_SAMPLE_ONE_SHOT ) ;
slEnvelope volume_envelope ( 1, SL_SAMPLE_ONE_SHOT ) ;
slScheduler *audio_sched;
smMixer *audio_mixer;
slSample *s1;
@ -455,6 +454,7 @@ static const double alt_adjust_m = alt_adjust_ft * FEET_TO_METER;
// What should we do when we have nothing else to do? Let's get ready
// for the next move and update the display?
static void fgMainLoop( void ) {
fgCONTROLS *c;
fgFLIGHT *f;
fgGENERAL *g;
fgTIME *t;
@ -465,6 +465,7 @@ static void fgMainLoop( void ) {
// double joy_x, joy_y;
// int joy_b1, joy_b2;
c = &cur_control_params;
f = current_aircraft.flight;
g = &general;
t = &cur_time_params;
@ -572,6 +573,11 @@ static void fgMainLoop( void ) {
// Run audio scheduler
#ifdef ENABLE_AUDIO_SUPPORT
if ( current_options.get_sound() ) {
double param = c->throttle[0] * 2.0 + 1.0;
pitch_envelope.setStep ( 0, 0.01, param );
volume_envelope.setStep ( 0, 0.01, param );
audio_sched -> update();
}
#endif
@ -679,7 +685,7 @@ static void fgIdleFunction ( void ) {
audio_sched = new slScheduler ( 8000 );
audio_mixer = new smMixer;
audio_mixer -> setMasterVolume ( 80 ) ; /* 80% of max volume. */
audio_mixer -> setMasterVolume ( 50 ) ; /* 80% of max volume. */
audio_sched -> setSafetyMargin ( 1.0 ) ;
string slfile = current_options.get_fg_root() + "/Sounds/wasp.wav";
@ -688,6 +694,16 @@ static void fgIdleFunction ( void ) {
s1 -> getRate(), s1 -> getBps(), s1 -> getStereo());
audio_sched -> loopSample ( s1 );
pitch_envelope.setStep ( 0, 0.01, 0.6 );
volume_envelope.setStep ( 0, 0.01, 0.6 );
audio_sched -> addSampleEnvelope( s1, 0, 0, &
pitch_envelope,
SL_PITCH_ENVELOPE );
audio_sched -> addSampleEnvelope( s1, 0, 1,
&volume_envelope,
SL_VOLUME_ENVELOPE );
// strcpy(slfile, path);
// strcat(slfile, "thunder.wav");
// s2 -> loadFile ( slfile );
@ -872,6 +888,10 @@ int main( int argc, char **argv ) {
// $Log$
// Revision 1.52 1998/09/25 16:02:07 curt
// Added support for pitch and volume envelopes and tied them to the
// throttle setting.
//
// Revision 1.51 1998/09/15 04:27:28 curt
// Changes for new Astro code.
//