void FGAIStorm::update(double dt) {
+ FGAIBase::update(dt);
Run(dt);
Transform();
- FGAIBase::update(dt);
}
double speed_north_deg_sec;
double speed_east_deg_sec;
- double ft_per_deg_lon;
- double ft_per_deg_lat;
-
- // get size of a degree at this latitude
- ft_per_deg_lat = 366468.96 - 3717.12 * cos(pos.lat()/SG_RADIANS_TO_DEGREES);
- ft_per_deg_lon = 365228.16 * cos(pos.lat() / SG_RADIANS_TO_DEGREES);
// convert speed to degrees per second
speed_north_deg_sec = cos( hdg / SG_RADIANS_TO_DEGREES )
pos.setlat( pos.lat() + speed_north_deg_sec * dt);
pos.setlon( pos.lon() + speed_east_deg_sec * dt);
- double altitude_ft = altitude * SG_METER_TO_FEET;
-
//###########################//
// do calculations for radar //
//###########################//
-
- // copy values from the AIManager
- double user_latitude = manager->get_user_latitude();
- double user_longitude = manager->get_user_longitude();
- double user_altitude = manager->get_user_altitude();
- double user_heading = manager->get_user_heading();
- double user_pitch = manager->get_user_pitch();
- double user_yaw = manager->get_user_yaw();
- // double user_speed = manager->get_user_speed();
-
- // calculate range to target in feet and nautical miles
- double lat_range = fabs(pos.lat() - user_latitude) * ft_per_deg_lat;
- double lon_range = fabs(pos.lon() - user_longitude) * ft_per_deg_lon;
- double range_ft = sqrt( lat_range*lat_range + lon_range*lon_range );
- range = range_ft / 6076.11549;
-
- // calculate bearing to target
- if (pos.lat() >= user_latitude) {
- bearing = atan2(lat_range, lon_range) * SG_RADIANS_TO_DEGREES;
- if (pos.lon() >= user_longitude) {
- bearing = 90.0 - bearing;
- } else {
- bearing = 270.0 + bearing;
- }
- } else {
- bearing = atan2(lon_range, lat_range) * SG_RADIANS_TO_DEGREES;
- if (pos.lon() >= user_longitude) {
- bearing = 180.0 - bearing;
- } else {
- bearing = 180.0 + bearing;
- }
- }
-
- // calculate look left/right to target, without yaw correction
- horiz_offset = bearing - user_heading;
- if (horiz_offset > 180.0) horiz_offset -= 360.0;
- if (horiz_offset < -180.0) horiz_offset += 360.0;
-
- // calculate elevation to target
- elevation = atan2( altitude_ft - user_altitude, range_ft )
- * SG_RADIANS_TO_DEGREES;
-
- // calculate look up/down to target
- vert_offset = elevation + user_pitch;
-
- // now correct look left/right for yaw
- horiz_offset += user_yaw;
-
- // calculate values for radar display
- y_shift = range * cos( horiz_offset * SG_DEGREES_TO_RADIANS);
- x_shift = range * sin( horiz_offset * SG_DEGREES_TO_RADIANS);
- rotation = hdg - user_heading;
- if (rotation < 0.0) rotation += 360.0;
-
+ UpdateRadar(manager);
}