before deleting Rules

Gameboard.ShogiUI.Sockets.ServiceModels/Socket/Types/BoardState.cs

@@ -1,11 +1,12 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 
 namespace Gameboard.ShogiUI.Sockets.ServiceModels.Socket.Types
 {
   public class BoardState
   {
-    public Piece[,] Board { get; set; }
-    public IReadOnlyCollection<Piece> Player1Hand { get; set; }
-    public IReadOnlyCollection<Piece> Player2Hand { get; set; }
+    public Piece[,] Board { get; set; } = new Piece[0, 0];
+    public IReadOnlyCollection<Piece> Player1Hand { get; set; } = Array.Empty<Piece>();
+    public IReadOnlyCollection<Piece> Player2Hand { get; set; } = Array.Empty<Piece>();
   }
 }

Gameboard.ShogiUI.Sockets.ServiceModels/Socket/Types/ClientActionEnum.cs

@@ -7,7 +7,6 @@
     JoinGame,
     JoinByCode,
     LoadGame,
-    Move,
-    KeepAlive
+    Move
   }
 }

Gameboard.ShogiUI.Sockets.ServiceModels/Socket/Types/Game.cs

@@ -1,13 +1,14 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 
 namespace Gameboard.ShogiUI.Sockets.ServiceModels.Socket.Types
 {
   public class Game
   {
-    public string GameName { get; set; }
+    public string GameName { get; set; } = string.Empty;
     /// <summary>
     /// Players[0] is the session owner, Players[1] is the other guy
     /// </summary>
-    public IReadOnlyList<string> Players { get; set; }
+    public IReadOnlyList<string> Players { get; set; } = Array.Empty<string>();
   }
 }

Gameboard.ShogiUI.Sockets.ServiceModels/Socket/Types/Move.cs

@@ -2,11 +2,11 @@
 {
   public class Move
   {
-    public string PieceFromCaptured { get; set; }
+    public WhichPiece? PieceFromCaptured { get; set; }
     /// <summary>Board position notation, like A3 or G1</summary>
-    public string From { get; set; }
+    public string? From { get; set; }
     /// <summary>Board position notation, like A3 or G1</summary>
-    public string To { get; set; }
+    public string To { get; set; } = string.Empty;
     public bool IsPromotion { get; set; }
   }
 }

Gameboard.ShogiUI.Sockets.ServiceModels/Socket/Types/Piece.cs

@@ -2,8 +2,8 @@
 {
   public class Piece
   {
-    public WhichPiece WhichPiece { get; set; }
-
     public bool IsPromoted { get; set; }
+    public WhichPiece WhichPiece { get; set; }
+    public WhichPlayer Owner { get; set; }
   }
 }

Gameboard.ShogiUI.Sockets.ServiceModels/Socket/Types/WhichPlayer.cs

@@ -0,0 +1,8 @@
+namespace Gameboard.ShogiUI.Sockets.ServiceModels.Socket.Types
+{
+  public enum WhichPlayer
+  {
+    Player1,
+    Player2
+  }
+}