private void updateVelocity(long deltaTime) {
if (turnRate > 0) {
double deltaHeading = (deltaTime * turnRate) / MS_PER_SECOND;
double newHeading = mCurrentVelocity.Direction() + deltaHeading;
while (newHeading < 0.0f) newHeading += DEGREES_PER_CIRCLE;
newHeading %= DEGREES_PER_CIRCLE;
mCurrentVelocity.SetDirectionAndMagnitude(newHeading, mCurrentVelocity.Magnitude());
}
}
private void updateLocation(long deltaTime) {
Vector velocity = new Vector(mCurrentVelocity).Add(mWindVelocity);
double deltaX = (velocity.X() / 3.6) * (deltaTime / 1000); // kph to m/s and ms to s
double deltaY = (velocity.Y() / 3.6) * (deltaTime / 1000); // kph to m/s and ms to s
mLatitude = mLatitude + (180 / Math.PI) * (deltaY / EARTH_RADIUS);
mLongitude =
mLongitude
+ (180 / Math.PI) * (deltaX / EARTH_RADIUS) / Math.cos(Math.PI / 180.0 * mLatitude);
}
private void generateTestData() {
long currentTime = new Date().getTime();
if (timeOfLastUpdate == 0) timeOfLastUpdate = currentTime;
long deltaTime = currentTime - timeOfLastUpdate;
if (mCurrentAltitude > startAltitude + 200
&& turnRate != 0.0
&& Angle.delta(mCurrentVelocity.Direction(), mWindVelocity.Direction()) < 20) {
turnRate = 0.0;
mCurrentVelocity.SetDirectionAndMagnitude(mCurrentVelocity.Direction(), 50);
} else if (mCurrentAltitude < startAltitude && turnRate == 0.0) {
turnRate = 15.0;
mCurrentVelocity.SetDirectionAndMagnitude(mCurrentVelocity.Direction(), 30);
}
updateClimbRate();
updateVelocity(deltaTime);
updateAltitude(deltaTime);
updateLocation(deltaTime);
Vector combinedVelocity = new Vector(mCurrentVelocity).Add(mWindVelocity);
HashMap<UUID, Double> values = new HashMap<>();
values.put(MessageChannels.GROUNDSPEED, combinedVelocity.Magnitude() / 3.6);
values.put(MessageChannels.BEARING, combinedVelocity.Direction());
values.put(MessageChannels.VARIO, mCurrentClimbRate);
values.put(MessageChannels.LONGITUDE, mLongitude);
values.put(MessageChannels.LATITUDE, mLatitude);
values.put(MessageChannels.ALTITUDE, mCurrentAltitude);
sendMsg(
new Configuration(id(), new HashSet<>(values.keySet())),
new Date().getTime(),
new DataMessage(values));
timeOfLastUpdate = currentTime;
}