/// <summary>
/// Makes start queue as default (root = _startUser)
/// </summary>
private void makeDefaultQueues()
{
if (_startQueue.Root.ID != _startUser.ID)
{
VKFriendsQueue temp = _startQueue;
_startQueue = _targetQueue;
_targetQueue = temp;
}
}
/// <summary>
/// Swaps if start has more friends
/// </summary>
private void swapQueuesIfNeeded()
{
if (_startQueue.UserCount > _targetQueue.UserCount)
{
VKFriendsQueue temp = _startQueue;
_startQueue = _targetQueue;
_targetQueue = temp;
}
}
public VKConnectionFinder(VKUser start, VKUser target)
{
_startUser = start;
_targetUser = target;
_startQueue = new VKFriendsQueue(start);
_targetQueue = new VKFriendsQueue(target);
_path = new List <VKUser>();
_currLevel = 0;
}
/// <summary>
/// Get friends and adds to queue.
/// </summary>
/// <param name="user"></param>
/// <param name="q"></param>
/// <returns></returns>
private async Task prepareUser(VKUser user, VKFriendsQueue q)
{
if (user.Childs.Count == 0)
{
q.addUser(user);
FriendsFetcher fetcher = new FriendsFetcher(user);
List <VKUser> friends = await fetcher.fetchFriends();
_status = fetcher.Status;
foreach (VKUser usr in friends)
{
if (q.addUser(usr))
{
user.addChild(usr);
}
}
}
}