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- use new aircraft.nas functions: kias_to_ktas(), wind_speed_from()

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- export radar values: bearing-deg, elevation-deg, range-nm
This commit is contained in:
mfranz 2009-03-18 13:46:07 +00:00
parent dafeb03bf1
commit 080432cd17
1 changed files with 17 additions and 11 deletions
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28
Nasal/tanker.nas
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@ -2,12 +2,6 @@ var boom_tanker = "Models/Geometry/KC135/KC135.xml";
var probe_tanker = "Models/Geometry/KA6-D/KA6-D.xml";
var wind_speed_from = func(azimuth) {
var dir = (getprop("/environment/wind-from-heading-deg") - azimuth) * D2R;
return getprop("/environment/wind-speed-kt") * math.cos(dir);
}
var oclock = func(bearing) int(0.5 + geo.normdeg(bearing) / 30) or 12;
@ -32,6 +26,7 @@ var Tanker = {
m.heading = heading;
m.coord = geo.Coord.new(coord);
m.out_of_range_time = 0;
m.interval = 10;
var n = props.globals.getNode("models", 1);
for (var i = 0; 1; i += 1)
@ -77,14 +72,21 @@ var Tanker = {
update: func {
var dt = getprop("sim/time/delta-sec");
var alt = me.coord.alt();
var wind = wind_speed_from(me.heading);
var ktas = me.kias + (me.kias * alt * M2FT / 50000); # +2% per 1000 ft
me.coord.apply_course_distance(me.heading, dt * (ktas + wind) * NM2M / 3600);
if ((me.interval += dt) >= 10) {
me.interval -= 10;
print("recalc wind");
me.headwind = aircraft.wind_speed_from(me.heading);
me.ktas = aircraft.kias_to_ktas(me.kias, alt);
}
me.coord.apply_course_distance(me.heading, dt * (me.ktas - me.headwind) * NM2M / 3600);
me.ac = geo.aircraft_position();
me.distance = me.ac.distance_to(me.coord);
me.bearing = me.ac.course_to(me.coord);
var dalt = alt - me.ac.alt();
var ac_hdg = getprop("/orientation/heading-deg");
me.ai.setValues({
"position/latitude-deg": me.coord.lat(),
@ -93,9 +95,13 @@ var Tanker = {
"orientation/true-heading-deg": me.heading,
"orientation/pitch-deg": 0,
"orientation/roll-deg": 0,
"velocities/true-airspeed-kt": ktas,
"velocities/true-airspeed-kt": me.ktas,
"velocities/vertical-speed-fps": 0,
"refuel/contact": me.distance < 76 and me.ac.alt() < alt, # 250 ft
"radar/range-nm": me.distance * M2NM,
"radar/bearing-deg": me.bearing,
"radar/elevation-deg": math.atan2(dalt, me.distance) * R2D,
"refuel/contact": me.distance < 76 and dalt > 0
and abs(view.normdeg(me.bearing - ac_hdg)) < 20, # 250 ft
});
var now = getprop("/sim/time/elapsed-sec");