/// <summary>Returns a least-cost path from the hex <c>start</c> to the hex <c>goal.</c></summary>
public static IDirectedPath GetDirectedPath(this IBoard <IHex> @this, IHex start, IHex goal)
{
if (@this == null)
{
throw new ArgumentNullException("this");
}
if (start == null)
{
throw new ArgumentNullException("start");
}
if (goal == null)
{
throw new ArgumentNullException("goal");
}
if (@this.IsPassable(start.Coords) && @this.IsPassable(goal.Coords))
{
return(goal.Coords.Range(start.Coords) > @this.RangeCutoff
? BidirectionalPathfinder.FindDirectedPathFwd(start, goal, @this)
: UnidirectionalPathfinder.FindDirectedPathFwd(start, goal, @this));
}
else
{
return(default(IDirectedPath));
}
}
public PathShortcut(IHex start, IHex goal, IDirectedNavigableBoard board)
{
DirectedPath = BidirectionalPathfinder.FindDirectedPathFwd(start, goal, board);
Goal = goal;
}