public void HandleOrbitalTransition(OrbitalSystem target, bool enteringOrbit)
{
if (enteringOrbit)
{
if (target == null)
return;
Destination = null;
//mOrbitElevation = (target.GetBody().transform.position - SpaceCraft.transform.position).magnitude;
OrbitElevation = (target.mSimulationRadius / 2) + Math.Max(target.mSimulationRadius * 0.1f, 1.3f);
Orbit = target;
Vector3 dirv = Vector3.Normalize(Orbit.Root.transform.position * -1.0f);
SpaceCraft.transform.position = Orbit.Root.transform.position + (dirv * OrbitElevation);
SpaceCraft.transform.LookAt(Orbit.Root.transform.position + Orbit.LastRelativeMove, Orbit.Root.transform.up);
float tp = (float)(2.0f * Math.PI);
// compute matching velocity from spin rate
float circumference = tp * Orbit.mSimulationRadius;
float velRat = Orbit.Spin / tp;
Velocity = circumference * velRat;
float x = SpaceCraft.transform.position.x - Orbit.Root.transform.position.x;
float y = SpaceCraft.transform.position.x - Orbit.Root.transform.position.x;
float dp = Vector2.Dot(new Vector2(1, 0), new Vector2(x, y));
mLastOrbitAngle = (float)Math.Acos(dp / (x * y));
SpeechToText.Speak("now orbiting " + Orbit.GetName());
SolarSystem.PoseController.transform.LookAt(Orbit.Body.transform.position + Orbit.LastRelativeMove, Orbit.Root.transform.up);
mObject = target;
}
else
{
if (Orbit == null)
return;
Vector3 crv = OrbitalSystem.OrbitRotationVector(ref mLastOrbitAngle, Orbit.mSimulationRadius, 0, OrbitElevation);
Vector3 dvPc = Vector3.Normalize(crv);
Vector3 up = Orbit.Body.transform.up;
Vector3 vv = Vector3.Cross(up, dvPc);
SpaceCraft.transform.forward = vv;
//SpaceCraft.transform.LookAt(mOrbit.GetBody().transform.position + mOrbit.LastAbsoluteDisplacement);
// convert velocity to orbited bodies rotation
//SolarSystem.PoseController.Transform.position = SpaceCraft.transform.position;
//SolarSystem.PoseController.Transform.rotation = SpaceCraft.transform.rotation;
float scaler = (Orbit.Radius / 160) * (Orbit.SimulationRadius / 64);
Velocity = Orbit.SumOfAbsoluteDisplacementDistance * scaler;
string theName = Orbit.GetName();
Orbit = null;
SpeechToText.Speak("leaving orbit of " + theName);
}
}
