internal void AddConnection(Node targetNode, double distance, bool twoWay)
{
if (targetNode == null)
{
throw new ArgumentNullException("targetNode");
}
if (targetNode == this)
{
throw new ArgumentException("Node may not connect to itself.");
}
if (distance <= 0)
{
throw new ArgumentException("Distance must be positive.");
}
connections.Add(new Edge(targetNode, distance));
if (twoWay)
{
targetNode.AddConnection(this, distance, false);
}
}
