public ActionResult Create(User user)
        {
            if (ModelState.IsValid)
            {
                db.Users.Add(user);
                db.SaveChanges();
                return RedirectToAction("Index");
            }

            return View(user);
        }
 public ActionResult Login(string returnUrl)
 {
     User user = db.Users.Where(u => u.username == WebSecurity.CurrentUserName).FirstOrDefault();
     if (user == null)
     {
         user = new User { username = WebSecurity.CurrentUserName };
         db.Users.Add(user);
         db.SaveChanges();
         return RedirectToAction("Create");
     }
     else
     {
         Player player = db.Players.Find(user.ID);
         if (player == null)
         {
             return RedirectToAction("Create");
         }
     }
     return RedirectToAction("Index", "Home");
 }
 public ActionResult Edit(User user)
 {
     if (ModelState.IsValid)
     {
         db.Entry(user).State = EntityState.Modified;
         db.SaveChanges();
         return RedirectToAction("Index");
     }
     return View(user);
 }