//
// 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.
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
-#include <simgear/math/point3d.hxx>
#include <Main/fg_props.hxx>
#include <Main/globals.hxx>
#include <Scenery/scenery.hxx>
#include <string>
#include <math.h>
+#include <cstdlib>
+#include <time.h>
-SG_USING_STD(string);
+using std::string;
#include "AIStorm.hxx"
-FGAIStorm::FGAIStorm(FGAIManager* mgr) {
- manager = mgr;
- _type_str = "thunderstorm";
- _otype = otStorm;
+FGAIStorm::FGAIStorm() :
+ FGAIBase(otStorm, false)
+{
+ 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);
}
FGAIStorm::~FGAIStorm() {
}
+void FGAIStorm::readFromScenario(SGPropertyNode* scFileNode) {
+ if (!scFileNode)
+ return;
-bool FGAIStorm::init() {
- return FGAIBase::init();
+ FGAIBase::readFromScenario(scFileNode);
+
+ setDiameter(scFileNode->getDoubleValue("diameter-ft", 0.0)/6076.11549);
+ setHeight(scFileNode->getDoubleValue("height-msl", 5000.0));
+ setStrengthNorm(scFileNode->getDoubleValue("strength-norm", 1.0));
+}
+
+bool FGAIStorm::init(bool search_in_AI_path) {
+ return FGAIBase::init(search_in_AI_path);
}
void FGAIStorm::bind() {
void FGAIStorm::Run(double dt) {
- FGAIStorm::dt = dt;
-
double speed_north_deg_sec;
double speed_east_deg_sec;
* speed * 1.686 / ft_per_deg_lon;
// set new position
- pos.setlat( pos.lat() + speed_north_deg_sec * dt);
- pos.setlon( pos.lon() + speed_east_deg_sec * dt);
+ pos.setLatitudeDeg( pos.getLatitudeDeg() + speed_north_deg_sec * dt);
+ pos.setLongitudeDeg( pos.getLongitudeDeg() + 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.getLatitudeDeg() - user_latitude) * ft_per_deg_lat;
+ double lon_range = fabs(pos.getLongitudeDeg() - 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_ft - 1000.0) &&
+ user_altitude < height) {
+ turb_mag_node->setDoubleValue(strength_norm);
+ turb_rate_node->setDoubleValue(0.5);
+ }
+
}