private static List <MazeSquare> Move(DeadEndChecker target, ref MazeSquare sq, WallPosition direction, int expectedDeadSquaresCount)
{
sq = sq.NeighborSquare(direction);
List <MazeSquare> deadSquares = target.Visit(sq);
Assert.AreEqual(expectedDeadSquaresCount, deadSquares.Count, "Number of dead squares doesn't match.");
return(deadSquares);
}
/// <summary>
/// Travel from one visited square to a neighbor square (through an open wall).
/// Wrapper. Calls the implementing method StepI().
/// Subclasses may do additional bookkeeping.
/// </summary>
/// <param name="sq1">first (previously visited) square</param>
/// <param name="sq2">next (neighbor) square</param>
/// <param name="forward">true if the neighbor square was not visited previously</param>
public virtual void Step(out MazeSquare sq1, out MazeSquare sq2, out bool forward)
{
StepI(out sq1, out sq2, out forward);
#region Apply the dead end checker.
if (deadEndChecker != null && mazeDrawer != null)
{
List <MazeSquare> deadSquares = deadEndChecker.Visit(sq2);
foreach (MazeSquare deadSq in deadSquares)
{
mazeDrawer.DrawDeadSquare(deadSq);
}
}
#endregion
}