var stats = new Stat[] {
                new Stat ()
                {
                    Name = "Str",
                    Value = 10,
                    IsPrimaryStat = true
                },
                new Stat ()
                {
                    Name = "Dex",
                    Value = 10,
                },
                new Stat ()
                {
                    Name = "Int",
                    Value = 5
                },
                new Stat ()
                {
                    Name = "Hp",
                    Value = 20
                }
            };


            var inventory = new List<IWeapon>
            {
                new Dagger(5, 100) { Name = "Bronze Dagger" },
                new Staff(5, 100) { Name = "Wooden Stick" },
                new Dagger(15, 500) { Name = "Iron Dagger" }
            };
            var sortedInventory = inventory.OrderBy(x => x.SortOrder).ToList();

            var player = new Player()
            {
                Name = "Cool Name",
                Stats = stats,
                Inventory = sortedInventory,
                Weapon = sortedInventory.First()
            };
            var goblin1 = new Enemy()
            {
                Name = "Goblin 1",
                Stats = stats,
                Inventory = sortedInventory, //items that can be dropped
                Weapon = sortedInventory.Last()
            };
            var goblin2 = new Enemy()
            {
                Name = "Goblin 2",
                Stats = stats,
                Inventory = sortedInventory, //items that can be dropped
                Weapon = sortedInventory.Last()
            };


            // play game
            var players = new List<IPlayer>() { player, goblin1, goblin2 };
            var fightingOrder = players.OrderBy(x => x.Speed).ToList();


            while (fightingOrder.Any(x => x is IPlayer && x.HP > 0)
                && fightingOrder.Any(x => x is IEnemy && x.HP > 0))
            {
                foreach (var fighter in fightingOrder)
                {
                    IPlayer opponent = null;

                    var test = fightingOrder.FirstOrDefault(x => x.GetType() != fighter.GetType());

                    if (fighter is IPlayer)
                    {
                        //let player select enemy, skill,
                        opponent = fightingOrder.FirstOrDefault(x => x is IEnemy);
                    }
                    if (fighter is IEnemy)
                    {
                        opponent = fightingOrder.FirstOrDefault(x => x is IPlayer);
                    }

                    fighter.Attack(opponent);
                }

                fightingOrder = fightingOrder.Where(x => x.HP > 0).ToList();
            }

        }