private void FloodFill(Point start)
{
var toProc = new Stack <Point>();
toProc.Push(start);
while (toProc.Count > 0)
{
var p = toProc.Pop();
var cardinals = CardinalDirections.GetCardinalPointsAround(p).Select(c => c.Item1);
foreach (var point in cardinals)
{
if (Maze[point.Y, point.X] != 0)
{
//< If un-explored, fill it in
if (Explored[point.Y, point.X] == false)
{
//< Set the flood value to 1 more than the the previous point
FloodLevels[point.Y, point.X] = FloodLevels[p.Y, p.X] + 1;
//< Add this point to be filled
toProc.Push(point);
}
}
}
//< Set the current point as seen
Explored[p.Y, p.X] = true;
}
}
private List <Tuple <Point, long> > GetPointsToCheck(Point p)
{
//< Get all the cardinal positions around this point
var cardinals = CardinalDirections.GetCardinalPointsAround(p);
//< Return those that ain't been explored
return(cardinals.Where(c => IsUnexplored(c.Item1)).ToList());
}