Generador de misiones para FlightGear

var lat = getprop("/position/latitude-deg");
var lon = getprop("/position/longitude-deg");
var info = geodinfo(lat, lon);
 
if (info != nil) {
    print("the terrain under the aircraft is at elevation ", info[0], " m");
    if (info[1] != nil)
        print("and it is ", info[1].solid ? "solid ground" : "covered by water");
}

the terrain under the aircraft is at elevation X m and it is solid ground/covered by water.