public List<PointField> doUpdate()
{
var returnList = new List<PointField>();
while (_newEntries.Count > 0)
{
currentlyChecking = _newEntries.Dequeue();
List<Point> pointList = getConnectedItems(currentlyChecking);
if (pointList == null)
return null;
if (pointList.Count > 1)
{
List<LinkedList<AStarSolver<GameField>.PathNode>> RouteList = handleListOfConnectedPoints( pointList);
foreach (var nodeList in RouteList)
{
if (nodeList.Count >= 4)
{
PointField field = findClosed(nodeList);
if (field != null)
{
returnList.Add(field);
}
}
}
}
currentField[currentlyChecking.y, currentlyChecking.x] = currentlyChecking.value;
}
return returnList;
}
private List<Point> getConnectedItems(GametileUpdate update)
{
if (update == null)
return null;
var ConnectedItems = new List<Point>();
int x = update.x;
int y = update.y;
if (diagonal)
{
if (this[y - 1, x - 1] && currentField[y - 1, x - 1] == update.value)
{
ConnectedItems.Add(new Point(x - 1, y - 1));
}
if (this[y - 1, x + 1] && currentField[y - 1, x + 1] == update.value)
{
ConnectedItems.Add(new Point(x + 1, y - 1));
}
if (this[y + 1, x - 1] && currentField[y + 1, x - 1] == update.value)
{
ConnectedItems.Add(new Point(x - 1, y + 1));
}
if (this[y + 1, x + 1] && currentField[y + 1, x + 1] == update.value)
{
ConnectedItems.Add(new Point(x + 1, y + 1));
}
}
if (this[y - 1, x] && currentField[y - 1, x] == update.value)
{
ConnectedItems.Add(new Point(x, y - 1));
}
if (this[y + 1, x] && currentField[y + 1, x] == update.value)
{
ConnectedItems.Add(new Point(x, y + 1));
}
if (this[y, x - 1] && currentField[y, x - 1] == update.value)
{
ConnectedItems.Add(new Point(x - 1, y));
}
if (this[y, x + 1] && currentField[y, x + 1] == update.value)
{
ConnectedItems.Add(new Point(x + 1, y));
}
return ConnectedItems;
}