Add game loop and end

53_King/csharp/Game.cs

@@ -17,9 +17,10 @@ internal class Game
     {
         _io.Write(Resource.Title);
 
-        if (SetUpReign() is Reign reign)
+        var reign = SetUpReign();
+        if (reign != null)
         {
-            reign.PlayYear();
+            while (reign.PlayYear());
         }
 
         _io.WriteLine();

53_King/csharp/IOExtensions.cs

@@ -26,7 +26,7 @@ internal static class IOExtensions
         while (true)
         {
             var response = value = io.ReadNumber(prompt);
-            if (response < 0) { return false; }
+            if (response == 0) { return false; }
             if (tests.All(test => test.IsValid(response, io))) { return true; }
         } 
     }

53_King/csharp/Reign.cs

@@ -6,10 +6,10 @@ internal class Reign
 
     private readonly IReadWrite _io;
     private readonly Country _country;
-    private readonly float _year;
+    private float _year;
 
     public Reign(IReadWrite io, IRandom random)
-        : this(io, new Country(io, random), 0)
+        : this(io, new Country(io, random), 1)
     {
     }
 
@@ -20,7 +20,7 @@ internal class Reign
         _year = year;
     }
 
-    public void PlayYear()
+    public bool PlayYear()
     {
         _io.Write(_country.Status);
 
@@ -28,6 +28,16 @@ internal class Reign
         var playerDistributedRallods = _country.DistributeRallods();
         var playerPlantedLand = _country.PlantLand();
         var playerControlledPollution = _country.ControlPollution();
-        
+
+        if (playerSoldLand || playerDistributedRallods || playerPlantedLand || playerControlledPollution)
+        {
+            _year++;
+            return true;
+        }
+        else
+        {
+            _io.Write(Goodbye);
+            return false;
+        }
     }
 }

53_King/csharp/Resources/Goodbye.txt

@@ -0,0 +1,5 @@
+
+Goodbye.
+(If you wish to continue this game at a later date, answer
+'again' when asked if you want instructions at the start
+of the game).

53_King/csharp/Resources/Resource.cs

@@ -59,6 +59,8 @@ internal static class Resource
     public static string SavedLandPrompt => GetString();
     public static string SavedLandError => GetString();
 
+    public static string Goodbye => GetString();
+
     private static string GetString([CallerMemberName] string? name = null)
     {
         using var stream = GetStream(name);