/// <summary>
/// Determines which sector the emitting face of a radar is pointing at
/// </summary>
/// <param name="antenna"></param>
/// <returns></returns>
private Sector DetermineAntennaSector(IMySlimBlock antenna)
{
// Start with the default direction
// The model antenna points in the +X, +Y, and -Z directions
VRageMath.Vector3D direction
= new VRageMath.Vector3D(1.0f, 1.0f, -1.0f);
// Rotate this vector by the orientation of the block
VRageMath.Vector3D rotated = VRageMath.Vector3D.Rotate(
direction, antenna.FatBlock.LocalMatrix);
_logger.debugLog("New radar's vector is " + rotated.ToString(),
"DetermineAntennaSector");
return(SectorExtensions.ClassifyVector(rotated));
}
/// <summary>
/// Goes through all tracks in the list and determines whether or not
/// they can currently be seen. This function does not add or remove
/// contacts from the list. That can only be done in ProcessAcquiredContacts.
/// </summary>
private void DoTrackingSweep()
{
//_logger.debugLog("Beginning sweep", "DoTrackingSweep");
Vector3D myPos = _grid.WorldAABB.Center;
// Go through all current tracks and update their makers
foreach (Track track in _allTracks.Values)
{
//_logger.debugLog($"For Track {track.trackId}", "DoTrackingSweep");
// If the entity is null, this track is only available on the
// server so use the stored value. Otherwise get the most
// up to date value
if (track.ent != null)
{
//_logger.debugLog("Entity is not null", "DoTrackingSweep");
track.position = track.ent.WorldAABB.Center;
}
// Transform the coordinates into grid space so we
// can compare it against our radar coverage
VRageMath.Vector3D relative
= VRageMath.Vector3D.Transform(
track.position, _grid.WorldMatrixNormalizedInv);
//Check that the sector is covered by our radars
Sector sec = SectorExtensions.ClassifyVector(relative);
if (IsSectorBlind(sec))
{
//_logger.debugLog("Sector is blind", "DoTrackingSweep");
// If a contact is not trackable, clear its GPS marker
ClearTrackMarker(track);
continue;
}
// Vector to target
Vector3D vecTo = track.position - myPos;
// If the entity is available, calculate the cross-section
// Otherwise we will use the stored value from the server
if (track.ent != null)
{
track.xsec
= EWMath.DetermineXSection(track.ent as IMyCubeGrid, vecTo);
}
double range = vecTo.Length();
double minxsec
= EWMath.MinimumXSection(
Constants.radarBeamWidths[(int)_assignedType], range);
if (track.xsec < minxsec)
{
//_logger.debugLog("Cross-section not large enough", "DoTrackingSweep");
ClearTrackMarker(track);
continue;
}
// TODO: raycast
// If all of the previous checks passed, this contact should
// be visible with a marker
AddUpdateTrackMarker(track);
}
}