public double getAltitude()
{
var box = Vessel.BoundingBox(refFrame);
double x = Math.Abs(box.Item1.Item1 - box.Item2.Item1);
double y = Math.Abs(box.Item1.Item2 - box.Item2.Item2);
double z = Math.Abs(box.Item1.Item3 - box.Item2.Item3);
double maxbound = Math.Max(Math.Max(x, y), z) * 0.5;
return(Flight.SurfaceAltitude - maxbound);
}
public static void Land(this Vessel vessel)
{
var srfFlight = vessel.Flight(vessel.Orbit.Body.ReferenceFrame);
while (srfFlight.VerticalSpeed > -2)
{
System.Threading.Thread.Sleep(100);
}
vessel.Control.SAS = true;
vessel.Control.Gear = true;
vessel.Control.Brakes = vessel.Orbit.Body.HasAtmosphere;
while (!(vessel.Control.SASMode == SASMode.Retrograde && vessel.Control.RCS))
{
vessel.Control.SASMode = SASMode.Retrograde;
vessel.Control.RCS = true;
}
bool shouldThrust = false;
double comOffset = Math.Abs(vessel.BoundingBox(vessel.ReferenceFrame).Item1.Item2);
double distanceToGround = vessel.Flight().SurfaceAltitude - comOffset;
double srfGrav = vessel.Orbit.Body.SurfaceGravity;
while (distanceToGround > 0.5)
{
double initialSpeedSquared = Math.Pow(srfFlight.Speed, 2);
float acc = (float)(((3 + initialSpeedSquared) / (2 * distanceToGround)) + srfGrav);
float thrustRequired = vessel.Mass * acc;
float throttle = thrustRequired / (vessel.AvailableThrust);
if (throttle > 0.98)
{
shouldThrust = true;
}
if (throttle < 0.1)
{
shouldThrust = false;
}
if (shouldThrust)
{
vessel.Accelerate(acc);
}
vessel.Control.SASMode =
srfFlight.Speed < 20 ?
SASMode.StabilityAssist : SASMode.Retrograde;
comOffset = Math.Abs(vessel.BoundingBox(vessel.ReferenceFrame).Item1.Item2);
distanceToGround = vessel.Flight().SurfaceAltitude - comOffset;
}
while (!(vessel.Situation == VesselSituation.Landed ||
vessel.Situation == VesselSituation.Splashed))
{
vessel.Accelerate(1);
}
vessel.Accelerate(0);
}
