private bool Resume(AbstractTile n)
{
while (_open.Count > 0)
{
var p = _open.Dequeue();
_closed.Add(p);
if (p == n)
{
return(true);
}
foreach (var q in _graph.AdjacentVertices(p).Reverse())
{
var gScore = _gScore.GetValueOrDefault(p, double.PositiveInfinity) + Metrics.Octile(p, q);
var fScore = gScore + Metrics.Octile(q, _start);
if (!_open.Contains(q) && !_closed.Contains(q))
{
_open.Enqueue(q, double.PositiveInfinity);
}
if (_open.Contains(q) && fScore < _open.GetPriority(q))
{
_gScore[q] = gScore;
_open.UpdatePriority(q, fScore);
}
}
}
return(false);
}