void update()
{
if (TransferTime < 0)
{
TrajectoryCalculator.ClosestApproach(Orbit, TargetOrbit, StartUT, VSL.Geometry.MinDistance, out AtTargetUT);
TransferTime = AtTargetUT - StartUT;
}
else
{
AtTargetUT = StartUT + TransferTime;
}
var obt = TrajectoryCalculator.NextOrbit(Orbit, AtTargetUT);
var t_orbit = TrajectoryCalculator.NextOrbit(TargetOrbit, AtTargetUT);
AtTargetPos = obt.getRelativePositionAtUT(AtTargetUT);
AtTargetVel = obt.getOrbitalVelocityAtUT(AtTargetUT);
TargetPos = TrajectoryCalculator.RelativePosAtUT(obt.referenceBody, t_orbit, AtTargetUT);
AtTargetRelPos = AtTargetPos - TargetPos;
DistanceToTarget = AtTargetRelPos.magnitude - VSL.Geometry.MinDistance;
DirectHit = DistanceToTarget < 1;
DistanceToTarget = Utils.ClampL(DistanceToTarget, 0);
BrakeDeltaV = t_orbit.GetFrameVelAtUT(AtTargetUT) - obt.GetFrameVelAtUT(AtTargetUT);
var brake_dV = (float)BrakeDeltaV.magnitude;
BrakeDuration = VSL.Engines.TTB_Precise(brake_dV);
BrakeFuel = VSL.Engines.FuelNeeded(brake_dV);
FullBrake = GetTotalFuel() < VSL.Engines.AvailableFuelMass;
//check if this trajectory is too close to any of celestial bodies it passes by
KillerOrbit = TransferTime < BrakeDuration + ManeuverDuration;
update_killer(OrigOrbit, StartUT);
update_killer(Orbit, AtTargetUT);
// Utils.Log("{}", this);//debug
}