#include <Scenery/scenery.hxx>
#include <string>
#include <math.h>
+#include <cstdlib>
+#include <time.h>
SG_USING_STD(string);
FGAIStorm::FGAIStorm(FGAIManager* mgr) {
manager = mgr;
- _type_str = "storm";
+ _type_str = "thunderstorm";
_otype = otStorm;
+ delay = 3.6;
+ subflashes = 1;
+ timer = 0.0;
+ random_delay = 3.6;
+ flash_node = fgGetNode("/environment/lightning/flash", true);
+ flash_node->setBoolValue(false);
+ flashed = 0;
+ flashing = false;
+ subflash_index = -1;
+ subflash_array[0] = 1;
+ subflash_array[1] = 2;
+ subflash_array[2] = 1;
+ subflash_array[3] = 3;
+ subflash_array[4] = 2;
+ subflash_array[5] = 1;
+ subflash_array[6] = 1;
+ subflash_array[7] = 2;
+
+ turb_mag_node = fgGetNode("/environment/turbulence/magnitude-norm", true);
+ turb_rate_node = fgGetNode("/environment/turbulence/rate-hz", true);
}
pos.setlat( pos.lat() + speed_north_deg_sec * dt);
pos.setlon( pos.lon() + speed_east_deg_sec * dt);
- //###########################//
- // do calculations for radar //
- //###########################//
+ // do calculations for weather radar display
UpdateRadar(manager);
+
+ // **************************************************
+ // * do lightning *
+ // **************************************************
+
+ if (timer > random_delay) {
+ srand((unsigned)time(0));
+ random_delay = delay + (rand()%3) - 1.0;
+ //cout << "random_delay = " << random_delay << endl;
+ timer = 0.0;
+ flashing = true;
+ subflash_index++;
+ if (subflash_index == 8) subflash_index = 0;
+ subflashes = subflash_array[subflash_index];
+ }
+
+ if (flashing) {
+ if (flashed < subflashes) {
+ timer += dt;
+ if (timer < 0.1) {
+ flash_node->setBoolValue(true);
+ } else {
+ flash_node->setBoolValue(false);
+ if (timer > 0.2) {
+ timer = 0.0;
+ flashed++;
+ }
+ }
+ } else {
+ flashing = false;
+ timer = 0.0;
+ flashed = 0;
+ }
+ }
+ else {
+ timer += dt;
+ }
+
+ // ***************************************************
+ // * do turbulence *
+ // ***************************************************
+
+ // copy user's position from the AIManager
+ double user_latitude = manager->get_user_latitude();
+ double user_longitude = manager->get_user_longitude();
+ double user_altitude = manager->get_user_altitude();
+
+ // 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;
+
+ if (range < (diameter * 0.5) &&
+ user_altitude > (altitude - 1000.0) &&
+ user_altitude < height) {
+ turb_mag_node->setDoubleValue(strength_norm);
+ turb_rate_node->setDoubleValue(0.5);
+ }
+
}