public static void GetGeometry(ushort segmentID1, ushort segmentID2,
out FastSegmentList farSegments, out FastSegmentList nearSegments)
{
farSegments = new FastSegmentList();
nearSegments = new FastSegmentList();
ushort nodeID = segmentID1.ToSegment().GetSharedNode(segmentID2);
var angle0 = GetSegmentsAngle(segmentID1, segmentID2);
for (int i = 0; i < 8; ++i)
{
ushort segmentID = nodeID.ToNode().GetSegment(i);
if (segmentID == 0 || segmentID == segmentID1 || segmentID == segmentID2)
{
continue;
}
var angle = GetSegmentsAngle(segmentID1, segmentID);
bool near = VectorUtil.CompareAngles_CCW_Right(source: angle0, target: angle);
near = near ^ NetUtil.LHT;
//Log.Debug($"GetGeometry({segmentID1}, {segmentID2}) : segment:{segmentID}\n" +
// $" CompareAngles_CCW_Right(angle0:{angle0*Mathf.Rad2Deg}, angle:{angle*Mathf.Rad2Deg}) -> {near}");
if (near)
{
nearSegments.Add(segmentID);
}
else
{
farSegments.Add(segmentID);
}
}
}
public static float GetSegmentsAngle(ushort from, ushort to)
{
ushort nodeID = from.ToSegment().GetSharedNode(to);
Vector3 dir1 = from.ToSegment().GetDirection(nodeID);
Vector3 dir2 = to.ToSegment().GetDirection(nodeID);
float ret = VectorUtil.SignedAngleRadCCW(dir1.ToCS2D(), dir2.ToCS2D());
//Log.Debug($"SignedAngleRadCCW({dir1} , {dir2}) => {ret}\n"+
// $"GetSegmentsAngle({from} , {to}) => {ret}");
return(ret);
}