public override bool AddToFrontier(MazeState aState, Frontier aFrontier = null)
{
Frontier selectedFrontier = aFrontier == null ? Frontier : aFrontier;
if (selectedFrontier.Contains(aState) || Maze.Contains(aState, Searched))
{
return(false);
}
else
{
selectedFrontier.Enqueue(aState);
}
return(true);
}