void CheckConnectivity()
{
// remove any points that are not connected to root node
Queue <GameObject> toVisit = new Queue <GameObject>();
List <GameObject> removedPoints = new List <GameObject>();
// establish connectivity
toVisit.Enqueue(firstPoint);
while (toVisit.Count > 0)
{
GridPoint p = toVisit.Dequeue().GetComponent <GridPoint>();
p.Connect();
if (p.forwardGameObject != null && !p.forwardGameObject.GetComponent <GridPoint>().Connected)
{
toVisit.Enqueue(p.forwardGameObject);
}
if (p.backGameObject != null && !p.backGameObject.GetComponent <GridPoint>().Connected)
{
toVisit.Enqueue(p.backGameObject);
}
if (p.leftGameObject != null && !p.leftGameObject.GetComponent <GridPoint>().Connected)
{
toVisit.Enqueue(p.leftGameObject);
}
if (p.rightGameObject != null && !p.rightGameObject.GetComponent <GridPoint>().Connected)
{
toVisit.Enqueue(p.rightGameObject);
}
}
// check connectivity, adding points that are not connected to the list to be removed
foreach (GameObject p in points)
{
if (!p.GetComponent <GridPoint>().CheckConnectivity())
{
removedPoints.Add(p);
}
}
// remove points from main points list
foreach (GameObject p in removedPoints)
{
points.Remove(p);
}
}
