private void Fill(int indexX, int indexY)
        {
            Queue<Tile> queue = new Queue<Tile>();

            //get the tile they clicked on and add to queue
            Tile clickedTile = map[indexX, indexY];
            queue.Enqueue(clickedTile);

            //variables to check against map dimensions
            int x = indexX;
            int y = indexY;

            while(queue.Count != 0)
            {
                Tile temp = new Tile();
                //gets first item in queue and removes it
                temp = queue.Dequeue();

                //find this item & update the selected picture coords
                for(int i = 0; i < map.GetLength(0); i++)
                {
                    for(int j = 0; j < map.GetLength(1); j++)
                    {
                        if(map[i,j].)
                    }
                }

                //add all adjacent tiles to the queue

                //to the right
                x = indexX + 1;
                if(x < map.GetLength(0) && x >= 0 && y < map.GetLength(1) && y >= 0)
                {

                    queue.Enqueue()
                }

                //to the left
                x = indexX - 1;


                //down one
                y = indexY + 1;
                x = indexX;


                //up one
                y = indexY - 1;

            }

        }