CommNet Occlusion [Solved]

[Aniruddh]

For my beamed power mod, I was working on getting planetary occlusion data from CommNet. I was wondering how to get a list of all celestial bodies in the game. Is it necessary for me to loop through each celestial body to get it's transform and input that into the constructor OccluderHorizonCulling. Also, what does it mean by radiusX? Reading the website they give a link to in the API, they discuss ellipsoids, aren't planets in ksp spherical?

Here is my code so far:

public class BPOcclusion : OccluderHorizonCulling
{
  public BPOcclusion() : base()
  {

  }
  public string CheckIfOccluded(Vessel Source, Vessel Dest, string state, out bool occluded)
  {
    OccluderHorizonCulling horizonCulling = new OccluderHorizonCulling(transform, radiusXRecip, radiusYRecip, radiusZRecip);
    QuaternionD invrot = invRotation;
    Vector3d source = Source.GetTransform().localPosition;
    Vector3d dest = Dest.GetTransform().localPosition;

    occluded = horizonCulling.Raycast(source, dest);
    if (occluded)
    {
      state = "Occluded by" + body.GetDisplayName();
    }
    return state;
  }
}

 There are no parameters for the base class constructor for now, until I can understand what the parameters mean. I'm currently getting a nullref exception in the log, likely due to transform not being assigned to anything yet.

Any help on this is much appreciated, I might've misunderstood all of this.

Edited August 24, 2020 by Aniruddh

[sarbian]

The celestial bodies list is FlightGlobals.Bodies

The transform for OccluderHorizonCulling is a CelestialBody.transform.

The radius are the body radius. Not all KSP planet are perfect sphere but you can use CelestialBody.radius to keep it simple.

And with horizonCulling.Raycast using double precision vectors it it likely that that you should use Vessel.GetWorldPos3D() for the source and dest values.

[Aniruddh]

I think I'm almost there in getting this working, one final question, what does it mean by invRotation? I haven't seen that listed anywhere under the Vessel or CelestialBody classes. How would I get this value?

EDIT: I'm guessing it's this one:

invRotation = FlightGlobals.Bodies[x].transform.rotation.Inverse();

 

Edited August 17, 2020 by Aniruddh