public static IEnumerable <Vector3> Flood(AbstractMap map, Vector3 location)
{
Type targetType = map.GetSafeSquare(location).GetType();
Queue <Vector3> candidates = new Queue <Vector3>();
candidates.Enqueue(location);
while (candidates.Count > 0)
{
Vector3 n = candidates.Dequeue();
Vector3 delta = Vector3.West;
Vector3 w = n;
for (int x = 0; x < 2; ++x)
{
bool ok = false;
do
{
AbstractSquare sq = map.GetSafeSquare(w);
ok = (sq != null && sq.GetType().Equals(targetType));
if (ok)
{
yield return(w);
candidates.Enqueue(w + Vector3.North);
candidates.Enqueue(w + Vector3.South);
}
w = w + delta;
} while (ok);
delta = Vector3.East;
w = n + delta;
}
}
}
void Main_DragOver(object sender, DragEventArgs e)
{
Point tile = ScreenToTile(SharplikeView.PointToClient(new Point(e.X, e.Y)));
AbstractSquare sq = Map.GetSafeSquare(new Vector3(tile.X + Map.View.X, tile.Y + Map.View.Y, Map.View.Z));
if (sq != null && sq.IsPassable(Direction.Here))
{
e.Effect = DragDropEffects.Copy;
}
else
{
e.Effect = DragDropEffects.None;
}
}