private static void CreateCollision(XmlNode currentNode, Tile current, int x, int y)
        {
            // if there is no innertext, collision is full cell
            if (currentNode.SelectSingleNode("Collision") != null &&
                currentNode.SelectSingleNode("Collision").InnerText == string.Empty)
            {
                //full tiles
                current.CollisionBox.Add(new Rectangle(x * TILE_SIZE, y * TILE_SIZE, TILE_SIZE, TILE_SIZE));
            }
            else
            {
                //partial tiles
                if (currentNode.SelectSingleNode("Collision") != null)
                {
                    var col = currentNode.SelectSingleNode("Collision").InnerText.Split(',');
                    current.CollisionBox.Add(new Rectangle((x * TILE_SIZE) + int.Parse(col[0]), (y * TILE_SIZE) + int.Parse(col[1]),
                        int.Parse(col[2]), int.Parse(col[3])));
                }

                //walls
                if (current.Walls[0] == "1")
                    current.CollisionBox.Add(new Rectangle(x * TILE_SIZE, y * TILE_SIZE, WALL_SIZE, TILE_SIZE));
                if (current.Walls[1] == "1")
                    current.CollisionBox.Add(new Rectangle(x * TILE_SIZE, y * TILE_SIZE, TILE_SIZE, WALL_SIZE));
            }
        }
        public void LoadContent(string name)
        {
            var doc = new XmlDocument();
            doc.Load("Content/Levels/" + name + ".xml");

            var level = doc.SelectSingleNode("/Level");
            var rows = level.SelectNodes("Row");
            var c = rows[0].SelectNodes("Column");

            Tiles = new Tile[c.Count, rows.Count];

            for (int y = 0; y < rows.Count; y++)
            {
                var columns = rows[y].SelectNodes("Column");
                for (int x = 0; x < columns.Count; x++)
                {
                    var currentNode = rows[y].SelectNodes("Column")[x];
                    var current = new Tile
                    {
                        Image = _manager.Load<Texture2D>("gfx/Tiles/" + currentNode.SelectSingleNode("Tile").InnerText + ".png"),
                        Walls = currentNode.SelectSingleNode("Walls") != null ? currentNode.SelectSingleNode("Walls").InnerText.Split(',') : new string[2],
                        CollisionBox = new List<Rectangle>()
                    };

                    CreateCollision(currentNode, current, x, y);
                    current.Item = CreateItem(currentNode);
                    CreateDoor(currentNode, x, y);

                    Tiles[x, y] = current;
                }
            }

            FindWallCaps();
        }