//
// 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::_self = NULL;
-
-FGAIStorm::FGAIStorm(FGAIManager* mgr) {
- manager = mgr;
- _self = this;
- _type_str = "thunderstorm";
- _otype = otStorm;
+FGAIStorm::FGAIStorm() : FGAIBase(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);
}
FGAIStorm::~FGAIStorm() {
- _self = NULL;
}
+void FGAIStorm::readFromScenario(SGPropertyNode* scFileNode) {
+ if (!scFileNode)
+ return;
+
+ 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() {
- return FGAIBase::init();
+bool FGAIStorm::init(bool search_in_AI_path) {
+ return FGAIBase::init(search_in_AI_path);
}
void FGAIStorm::bind() {
void FGAIStorm::update(double dt) {
+ FGAIBase::update(dt);
Run(dt);
Transform();
- FGAIBase::update(dt);
}
void FGAIStorm::Run(double dt) {
- FGAIStorm::dt = 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 )
* 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 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];
+ }
- double altitude_ft = altitude * SG_METER_TO_FEET;
+ 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 calculations for radar //
- //###########################//
+ // ***************************************************
+ // * do turbulence *
+ // ***************************************************
- // copy values from the AIManager
+ // 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();
- 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 );
+ 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;
- // 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;
-
+ 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);
+ }
+
}
projects / flightgear.git / blobdiff