initialize repo

Lib/Civilization.Core/Game/TurnManager.cs

@@ -0,0 +1,24 @@
+namespace Civilization.Core.Game;
+
+public class TurnManager
+{
+    private readonly List<Player> _players = [];
+    private int _currentIndex = 0;
+
+    public int TurnNumber { get; private set; } = 1;
+    public Player CurrentPlayer => _players[_currentIndex];
+
+    public TurnManager(IEnumerable<Player> players)
+    {
+        _players = players.ToList();
+    }
+
+    public void AdvanceTurn()
+    {
+        _currentIndex++;
+        if (_currentIndex < _players.Count) return;
+        
+        _currentIndex = 0;
+        TurnNumber++;
+    }
+}