// After this call, all orbits should have a depth.
public int GetOrbitsCount()
{
int counter = 0;
List <ObjectNode> queue = new List <ObjectNode>();
queue.Add(treeRoot); // initial node
while (queue.Count != 0)
{
// Add Child nodes to the queue
ObjectNode tmp = queue[0];
queue.RemoveAt(0);
foreach (ObjectNode node in tmp.GetChildren())
{
queue.Add(node);
}
// Get depth from parent ~ pseudo recursively.
if (tmp.Depth == -1)
{
tmp.Depth = tmp.GetParent().Depth + 1;
}
counter += tmp.Depth;
}
return(counter);
}