// Description: Displays error with number of isolated nodes found and changes sprite of the respective nodes to highlight them
// PRE: disconnectedNodes list is not null
// POST: Sprites of disconnected nodes are changed to the error sprite
private void DisplayDisconnectedNodes()
{
string error_text = "You have " + _disconnectedNodes.Count + " disconnected nodes.";
_errorView.AppendErrorText(error_text);
_errorView.SetDisplayGui(true);
for (int j = 0; j < _disconnectedNodes.Count; j++)
{
_disconnectedNodes[j].GetComponent <SpriteRenderer>().sprite = (Sprite)Resources.Load("BuildViewNodeDISCONNECTED", typeof(Sprite));
}
_disconnectedNodes.Clear();
}