public int CheckForExisting()
{
int sum = 0;
for (int y = 0; y < Size; y++)
{
for (int x = 0; x < Size; x++)
{
if (_multiArea.Contains(new Point(x, y)))
{
sum++;
}
}
}
return(sum);
}
private Area?Visit(Point position)
{
// Don't bother allocating a MapArea, because the starting point isn't valid.
if (!AreasView[position])
{
return(null);
}
// Can't be in multiple areas
if (_foundAreas.Contains(position))
{
return(null);
}
var stack = new Stack <Point>();
var area = new Area();
_foundAreas.Add(area);
stack.Push(position);
while (stack.Count != 0)
{
position = stack.Pop();
// Already visited, or not part of any mapArea. Also only called from functions that have allocated
// visited
if (area.Contains(position) || !AreasView[position])
{
continue;
}
area.Add(position);
foreach (var c in AdjacencyMethod.Neighbors(position))
{
// Out of bounds, thus not actually a neighbor
if (c.X < 0 || c.Y < 0 || c.X >= AreasView.Width || c.Y >= AreasView.Height)
{
continue;
}
if (AreasView[c] && !area.Contains(c))
{
stack.Push(c);
}
}
}
return(area);
}
