#include "AIAircraft.hxx"
+
+const FGAIAircraft::PERF_STRUCT FGAIAircraft::settings[] = {
+ // light aircraft
+ {2.0, 2.0, 450.0, 1000.0, 70.0, 80.0, 100.0, 80.0, 60.0},
+ // ww2_fighter
+ {4.0, 2.0, 3000.0, 1500.0, 110.0, 180.0, 250.0, 200.0, 100.0},
+ // jet_transport
+ {5.0, 2.0, 3000.0, 1500.0, 140.0, 300.0, 430.0, 300.0, 130.0},
+ // jet_fighter
+ {7.0, 3.0, 4000.0, 2000.0, 150.0, 350.0, 500.0, 350.0, 150.0}
+};
+
+
FGAIAircraft::FGAIAircraft() {
// set heading and altitude locks
hdg_lock = false;
alt_lock = false;
+ _type_str = "aircraft";
}
return FGAIBase::init();
}
+void FGAIAircraft::bind() {
+ FGAIBase::bind();
+}
+
+void FGAIAircraft::unbind() {
+ FGAIBase::unbind();
+}
+
void FGAIAircraft::update(double dt) {
FGAIBase::update(dt);
}
-void FGAIAircraft::SetPerformance(PERF_STRUCT ps) {
+void FGAIAircraft::SetPerformance(const PERF_STRUCT *ps) {
performance = ps;
}
double alpha;
// get size of a degree at this latitude
- ft_per_deg_lat = 366468.96 - 3717.12 * cos(pos.lat() / 57.2958 );
- ft_per_deg_lon = 365228.16 * cos(pos.lat() / 57.2958);
+ 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);
// adjust speed
double speed_diff = tgt_speed - speed;
if (fabs(speed_diff) > 0.2) {
- if (speed_diff > 0.0) speed += performance.accel * dt;
- if (speed_diff < 0.0) speed -= performance.decel * dt;
+ if (speed_diff > 0.0) speed += performance->accel * dt;
+ if (speed_diff < 0.0) speed -= performance->decel * dt;
}
// convert speed to degrees per second
- speed_north_deg_sec = cos( hdg / 57.29577951 ) * speed * 1.686 / ft_per_deg_lat;
- speed_east_deg_sec = sin( hdg / 57.29577951 ) * speed * 1.686 / ft_per_deg_lon;
+ speed_north_deg_sec = cos( hdg / SG_RADIANS_TO_DEGREES )
+ * speed * 1.686 / ft_per_deg_lat;
+ speed_east_deg_sec = sin( hdg / SG_RADIANS_TO_DEGREES )
+ * speed * 1.686 / ft_per_deg_lon;
// set new position
pos.setlat( pos.lat() + speed_north_deg_sec * dt);
// adjust heading based on current bank angle
if (roll != 0.0) {
- turn_radius_ft = 0.088362 * speed * speed / tan( fabs(roll) / 57.2958 );
- turn_circum_ft = 6.2831853 * turn_radius_ft;
+ turn_radius_ft = 0.088362 * speed * speed
+ / tan( fabs(roll) / SG_RADIANS_TO_DEGREES );
+ turn_circum_ft = SGD_2PI * turn_radius_ft;
dist_covered_ft = speed * 1.686 * dt;
alpha = dist_covered_ft / turn_circum_ft * 360.0;
hdg += alpha * sign( roll );
}
// adjust altitude (meters) based on current vertical speed (fpm)
- altitude += vs * 0.0166667 * dt * 0.3048;
+ altitude += vs * 0.0166667 * dt * SG_FEET_TO_METER;
// find target vertical speed if altitude lock engaged
if (alt_lock) {
- double altitude_ft = altitude * 3.28084;
+ double altitude_ft = altitude * SG_METER_TO_FEET;
if (altitude_ft < tgt_altitude) {
- tgt_vs = tgt_altitude - altitude_ft;
- if (tgt_vs > performance.climb_rate) tgt_vs = performance.climb_rate;
+ tgt_vs = tgt_altitude - altitude_ft;
+ if (tgt_vs > performance->climb_rate)
+ tgt_vs = performance->climb_rate;
} else {
- tgt_vs = tgt_altitude - altitude_ft;
- if (tgt_vs < (-performance.descent_rate)) tgt_vs = -performance.descent_rate;
+ tgt_vs = tgt_altitude - altitude_ft;
+ if (tgt_vs < (-performance->descent_rate))
+ tgt_vs = -performance->descent_rate;
}
}