// small helper function
OrbitNode FindOrCreateNode(string id)
{
if (!nodes.TryGetValue(id, out OrbitNode node))
{
return(nodes[id] = new OrbitNode(id));
}
return(node);
}
// the Depth of a node is the number of parents it takes to reach the Center of Mass
private static int Depth(OrbitNode node)
{
var depth = 0;
for (var current = node; !current.IsCenterOfMass; current = current.Parent, depth++)
{
;
}
return(depth);
}
public OrbitNode(OrbitNode copyMe) : base(copyMe)
{
}