using System;
using System.Linq;
// using System.Xml;
using System.Xml.Linq;

namespace ConsoleApp1
{
    class Position
    {
        public int x { get; set; }
        public int y { get; set; }
        public override string ToString()
        {
            return string.Format("(x = {0}, y = {1})", x, y);
        }
    }
    class GameObject
    {
        public string Name { get; set; }
        public Position Position { get; set; }

    }
    class Program
    {
        static void Main(string[] args)
        {
            var objects = new GameObject[]
            {
                new GameObject { Name = "item 1", Position = new Position{x = 1, y = 2 } },
                new GameObject { Name = "item 2", Position = new Position{x = 1, y = 2 } },
                new GameObject { Name = "item 3", Position = new Position{x = 1, y = 2 } },
                new GameObject { Name = "item 4", Position = new Position{x = 1, y = 2 } },
                new GameObject { Name = "item 5", Position = new Position{x = 1, y = 2 } },
            };

            var doc = new XDocument(
                new XElement("root",
                    from p in objects select new XElement("gameobject",
                    new XAttribute("name", p.Name),
                    new XElement("position", new XAttribute("x", p.Position.x), new XAttribute("y", p.Position.y))))
                );

            Console.WriteLine(doc.ToString());

            var read = from d in doc.Descendants("gameobject")
                       let position = d.Element("position")
                       select new GameObject {
                           Name = d.Attribute("name").Value,
                           Position = new Position
                           {
                               x = Convert.ToInt32(position.Attribute("x").Value),
                               y = Convert.ToInt32(position.Attribute("y").Value),
                           }
                       };
            foreach (var go in read)
            {
                Console.WriteLine(string.Format("name = {0}, position = {1}", go.Name, go.Position));
            }
        }
    }
}