/// <summary>
/// Initializes a new instance of the <see cref="Marcher4"/> class.
/// </summary>
/// <param name="startDirection">The start direction.</param>
/// <param name="startX">The start X.</param>
/// <param name="startY">The start Y.</param>
/// <remarks></remarks>
public Marcher4(Door4 startDirection, int startX, int startY)
{
Contract.Requires(startDirection.ExactlyOneValueSet());
Contract.Requires(startX >= 0 && startY >= 0);
Direction = startDirection;
X = startX;
Y = startY;
}
/// <summary>
/// Legt fest, dass eine Tür durchschritten wurde
/// </summary>
/// <param name="set">Das Lookup-Set</param>
/// <param name="room">Der Raum</param>
/// <param name="direction">Die Richtung</param>
private static void SetBeenThere(HashSet<Tuple<IRoom4, Door4>> set, IRoom4 room, Door4 direction)
{
Contract.Requires(set != null);
Contract.Requires(room != null);
Contract.Requires(direction.ExactlyOneValueSet());
set.Add(new Tuple<IRoom4, Door4>(room, direction));
}
/// <summary>
/// Ermittelt, ob eine Tür bereits durchschritten wurde
/// </summary>
/// <param name="set">Das Lookup-Set</param>
/// <param name="room">Der Raum</param>
/// <param name="direction">Die Richtung</param>
/// <returns><c>true</c>, wenn der angegebene Raum bereits durch diese Tür verlassen wurde, ansonsten <c>false</c></returns>
private static bool BeenThere(HashSet<Tuple<IRoom4, Door4>> set, IRoom4 room, Door4 direction)
{
Contract.Requires(set != null);
Contract.Requires(room != null);
Contract.Requires(direction.ExactlyOneValueSet());
return set.Contains(new Tuple<IRoom4, Door4>(room, direction));
}
