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Added --random-wind command-line option.

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This commit is contained in:
david 2002-07-26 02:49:14 +00:00
parent f8d4cb36b2
commit 88758e60b4
1 changed files with 35 additions and 28 deletions
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63
src/Main/options.cxx
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@ -35,6 +35,7 @@
#include STL_STRING
#include <simgear/math/sg_random.h>
#include <simgear/misc/sgstream.hxx>
#include <simgear/misc/sg_path.hxx>
#include <simgear/route/route.hxx>
@ -495,6 +496,33 @@ add_channel( const string& type, const string& channel_str ) {
}
static void
setup_wind (double min_hdg, double max_hdg, double speed, double gust)
{
fgSetDouble("/environment/wind-from-heading-deg", min_hdg);
fgSetDouble("/environment/params/min-wind-from-heading-deg", min_hdg);
fgSetDouble("/environment/params/max-wind-from-heading-deg", max_hdg);
fgSetDouble("/environment/wind-speed-kt", speed);
fgSetDouble("/environment/params/base-wind-speed-kt", speed);
fgSetDouble("/environment/params/gust-wind-speed-kt", gust);
SG_LOG(SG_GENERAL, SG_INFO, "WIND: " << min_hdg << '@' <<
speed << " knots" << endl);
#ifdef FG_WEATHERCM
// convert to fps
speed *= SG_NM_TO_METER * SG_METER_TO_FEET * (1.0/3600);
while (min_hdg > 360)
min_hdg -= 360;
while (min_hdg <= 0)
min_hdg += 360;
min_hdg *= SGD_DEGREES_TO_RADIANS;
fgSetDouble("/environment/wind-from-north-fps", speed * cos(dir));
fgSetDouble("/environment/wind-from-east-fps", speed * sin(dir));
#endif // FG_WEATHERCM
}
// Parse --wp=ID[@alt]
static bool
parse_wp( const string& arg ) {
@ -917,40 +945,19 @@ parse_option (const string& arg)
} else if ( arg.find( "--visibility-miles=" ) == 0 ) {
double visibility = atof(arg.substr(19)) * 5280.0 * SG_FEET_TO_METER;
fgSetDouble("/environment/visibility-m", visibility);
} else if ( arg.find( "--random-wind" ) == 0 ) {
double min_hdg = sg_random() * 360.0;
double max_hdg = min_hdg + (20 - sqrt(sg_random() * 400));
double speed = 40 - sqrt(sg_random() * 1600.0);
double gust = speed + (10 - sqrt(sg_random() * 100));
setup_wind(min_hdg, max_hdg, speed, gust);
} else if ( arg.find( "--wind=" ) == 0 ) {
double min_hdg, max_hdg, speed, gust;
if (!parse_wind(arg.substr(7), &min_hdg, &max_hdg, &speed, &gust)) {
SG_LOG( SG_GENERAL, SG_ALERT, "bad wind value " << arg.substr(7) );
return FG_OPTIONS_ERROR;
}
fgSetDouble("/environment/wind-from-heading-deg", min_hdg);
fgSetDouble("/environment/params/min-wind-from-heading-deg", min_hdg);
fgSetDouble("/environment/params/max-wind-from-heading-deg", max_hdg);
fgSetDouble("/environment/wind-speed-kt", speed);
fgSetDouble("/environment/params/base-wind-speed-kt", speed);
fgSetDouble("/environment/params/gust-wind-speed-kt", gust);
string val = arg.substr(7);
string::size_type pos = val.find('@');
if ( pos == string::npos ) {
SG_LOG( SG_GENERAL, SG_ALERT, "bad wind value " << val );
return FG_OPTIONS_ERROR;
}
SG_LOG(SG_GENERAL, SG_INFO, "WIND: " << min_hdg << '@' <<
speed << " knots" << endl);
#ifdef FG_WEATHERCM
// convert to fps
speed *= SG_NM_TO_METER * SG_METER_TO_FEET * (1.0/3600);
while (min_hdg > 360)
min_hdg -= 360;
while (min_hdg <= 0)
min_hdg += 360;
min_hdg *= SGD_DEGREES_TO_RADIANS;
fgSetDouble("/environment/wind-from-north-fps", speed * cos(dir));
fgSetDouble("/environment/wind-from-east-fps", speed * sin(dir));
#endif // FG_WEATHERCM
setup_wind(min_hdg, max_hdg, speed, gust);
} else if ( arg.find( "--wp=" ) == 0 ) {
parse_wp( arg.substr( 5 ) );
} else if ( arg.find( "--flight-plan=") == 0) {