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copied!<p>My version </p> <pre><code>class Player { private readonly string _Name; private int _KillsCount = 0; private int _DeathsCount = 0; private bool _IsChanged = false; public string Name { get { return _Name; } } public int DeathsCount { get { return _DeathsCount; } private set { if (_DeathsCount != value) { _DeathsCount = value; _IsChanged = true; } } } public int KillsCount { get { return _KillsCount; } private set { if (_KillsCount != value) { _KillsCount = value; _IsChanged = true; } } } public bool IsChanged { get { return _IsChanged; } set { _IsChanged = value; } } public Player(string name) { _Name = name; } public void Kill(Player killer) { DeathsCount++; killer.KillsCount++; } } class Example { private readonly Collection<Player> _Players = new Collection<Player>(); private bool _IsUpdateEnabled; private int _UpdateTimeout = 1000; public void Start() { var frank = new Player("Frank"); var tom = new Player("Tom"); _Players.Add(frank); _Players.Add(tom); _Players.Add(new Player("Bob")); _IsUpdateEnabled = true; new Thread(UpdateThreadMethod).Start(); // Frank kills Tom ): tom.Kill(frank); // Where is Bob? var bob = _Players.First(p => p.Name == "Bob"); // Bob kills Frank frank.Kill(bob); // Tom kills Bob bob.Kill(tom); } private void UpdateThreadMethod() { while (_IsUpdateEnabled) { foreach (var player in _Players) { if (player.IsChanged) { // update database // e.g. "update stats set kills = @kills, deaths = @deaths where name = @name" // where // @kills is players.KillsCount // @deaths is player.DeathsCount // @name is player.Name player.IsChanged = false; } } Thread.Sleep(_UpdateTimeout); } } public void ShowResults() { foreach (var player in _Players) { Console.WriteLine("Player name: {0}, kills: {1}, deaths: {2}", player.Name, player.KillsCount, player.DeathsCount); } } } </code></pre>

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