public void ProcessNewPaths(Page p, UrlObject domainObject)
{
if (p != null && domainObject != null)
{
Console.WriteLine("Visited: " + p.Link.GetFullPath(false));
Unvisited.Remove(p.Link.GetFullPath(false));
if (!Visited.ContainsKey(p.Link.GetFullPath(false)))
{
Visited.Add(p.Link.GetFullPath(false), p);
}
foreach (LinkTag l in p.LinkTags)
{
var toBeVisited = false;
var visited = false;
try
{
var key = Unvisited[l.Url.GetFullPath(false)];
toBeVisited = true;
}
catch (KeyNotFoundException /* knfe */) { }
try
{
var key = Visited[l.Url.GetFullPath(false)];
visited = true;
}
catch (KeyNotFoundException /* knfe */) { }
if (toBeVisited != true
& visited != true)
{
if (l.Url.GetDomain() == domainObject.GetDomain())
{
Unvisited.Add(l.Url.GetFullPath(false), l.Url);
}
}
}
}
}
public void Update()
{
Steps += 1;
Current = _queue.Dequeue();
Visited[Current] = true;
if (Current == Goal)
{
Console.WriteLine($"Found goal in {Steps} steps");
Searching = false;
AutoAdvance = false;
while (Current != Start)
{
Path.Add(Current);
Current = CameFrom[Current];
}
Current = null; // To show start
return;
}
foreach (Tile tile in Current.Neighbours)
{
if (!Visited.ContainsKey(tile) && !_queue.Contains(tile) && tile.Type != TileType.Blocked)
{
_queue.Enqueue(tile);
CameFrom[tile] = Current;
}
}
if (_queue.Count == 0)
{
Searching = false;
}
}
