private void ProcessAdjacentNode(int row, int column, Queue <Tuple <int, int> > queue, int newDistance, Tuple <int, int> pos, Octocat cat, List <Tuple <int, int> > nextPos)
{
if (row >= 0 &&
column >= 0 &&
row < BoardSize &&
column < BoardSize &&
!Board[row, column] &&
!visited[row, column] &&
Cats.Count(cc => cc.RowIndex == row && cc.ColumnIndex == column) == 0)
{
var p = new Tuple <int, int>(row, column);
queue.Enqueue(p);
visited[row, column] = true;
distance[row, column] = newDistance;
prev[row, column] = pos;
if (pos.Item1 == cat.RowIndex && pos.Item2 == cat.ColumnIndex)
{
nextPos.Add(p);
}
}
}