feat(chinese-chess): 实现中国象棋核心逻辑和基本功能

- 抽象出 ChessCore 类，包含游戏初始化、行棋逻辑、悔棋等功能
- 重构 Player 类，优化行棋和记录逻辑
- 更新 ChessBoard 和 ChessPiece 类，适应新逻辑
- 移除冗余代码，提高代码可读性和可维护性

Scripts/Controllers/ChessGame.cs

@@ -1,29 +1,27 @@
-using System.Collections;
 using Godot;
 using Godot.Collections;
+using ChineseChess;
 
 public partial class ChessGame : Node2D {
 	ChessBoard board;
 	Global global;
 	ConfirmationDialog dialog;
 	private bool isSession = false;
-
-	private Player playerSelf;
-	private Player playerOpponent;
+	ChessCore Game;
+	ChessCore.TurnsSideType sideSelf;
+	ChessCore.TurnsSideType sideOpposite;
 
 	// Called when the node enters the scene tree for the first time.
-	public override void _Ready()
-	{
+	public override void _Ready() {
 		// Init.Call();
 		global = GetNode<Global>("/root/Global");
 		board = GetNode<ChessBoard>("Chessboard");
 		isSession = global.RPClient.IsOnline();
 
-		playerSelf = new Player(board.board, Player.PlayerType.Human);
-		playerOpponent = new Player(board.board, Player.PlayerType.Human);
-		InitChessBoard();
 		GetNode<LineEdit>("Control/VBoxContainer/MarginContainer3/HFlowContainer/LineEdit")
 			.Text = global.GlobalData["player_color"].AsString();
+		LineEdit turnSideEdit = GetNode<LineEdit>("Control/VBoxContainer/MarginContainer3/HFlowContainer/LineEdit2");
+		turnSideEdit.Text = "red";
 		GD.PrintErr("ChessGame ", global.RPClient.GetUserId(), ":",global.GlobalData["player_color"]);
 
         dialog = new ConfirmationDialog {
@@ -33,18 +31,37 @@ public partial class ChessGame : Node2D {
         };
 		AddChild(dialog);
 
+		if (global.GlobalData["player_color"].AsString() == "red") {
+			sideSelf = ChessCore.TurnsSideType.Red;
+			sideOpposite = ChessCore.TurnsSideType.Black;
+		} else {
+			sideSelf = ChessCore.TurnsSideType.Black;
+			sideOpposite = ChessCore.TurnsSideType.Red;
+		}
+
+		if (isSession) {
+			Game = new(ChessCore.Mode.MultiMode, sideSelf);
+		} else {
+			Game = new(ChessCore.Mode.SingleMode, sideSelf);
+		}
+		board.LoadBoard(Game.board);
+		Game.InitGame();
+
+		Game.board.OnMove += (sender, e) => {
+			turnSideEdit.Text = Game.GetTurnsType() == ChessCore.TurnsSideType.Red ? "red" : "black";
+		};
+
 		board.OnPosClicked += (sender, pos) => {
 			if (isSession) {
+				Game.OnPosClicked(pos, ChessCore.PlayerSideType.Self);
 				var res = global.RPClient.SendSessionToAll(global.sessionId, new Dictionary {
 						{"type", "mouseClicked"},
 						{"X", pos.X},
 						{"Y", pos.Y},
 						{"id", global.RPClient.GetUserId()}
 					});
-				playerSelf.HandleBoardPosClick(pos);
 			} else {
-				playerSelf.HandleBoardPosClick(pos);
-				playerSelf.SetAllowedPieces(null);
+				Game.OnPosClicked(pos);
 			}
 		};
 
@@ -65,44 +82,6 @@ public partial class ChessGame : Node2D {
 	public override void _Process(double delta) {
 	}
 
-	public void InitChessBoard() {
-        ArrayList black = InitializePieces("black", 0, new[] {
-        ("车", 0, 0), ("马", 1, 0), ("象", 2, 0),
-		("士", 3, 0), ("将", 4, 0), ("士", 5, 0),
-		("象", 6, 0), ("马", 7, 0), ("车", 8, 0),
-        ("炮", 1, 2), ("炮", 7, 2),
-        ("卒", 0, 3), ("卒", 2, 3), ("卒", 4, 3), ("卒", 6, 3), ("卒", 8, 3)
-    	});
-
-        ArrayList red = InitializePieces("red", 9, new[] {
-        ("车", 0, -0), ("马", 1, -0), ("象", 2, -0),
-		("士", 3, -0), ("将", 4, -0), ("士", 5, -0),
-		("象", 6, -0), ("马", 7, -0), ("车", 8, -0),
-        ("炮", 1, -2), ("炮", 7, -2),
-        ("卒", 0, -3), ("卒", 2, -3), ("卒", 4, -3), ("卒", 6, -3), ("卒", 8, -3)
-    	});
-		if (global.GlobalData["player_color"].AsString() == "red") {
-			playerSelf.SetAllowedPieces(red);
-			playerOpponent.SetAllowedPieces(black);
-		} else {
-			playerSelf.SetAllowedPieces(black);
-			playerOpponent.SetAllowedPieces(red);
-		}
-    }
-
-    private ArrayList InitializePieces(string color, int baseY, (string label, int x, int y)[] positions) {
-		ArrayList list = new();      
-		foreach (var (label, x, y) in positions) {
-            ChessPiece piece = new ChessPiece {
-                PieceLabel = label,
-                LabelColor = new Color(color)
-            };
-			list.Add(piece.GetVirtualPiece());
-            board.InsertNode(piece, new Vector2(x, baseY + y));
-        }
-		return list;
-    }
-
 	private void SessionMsgHandle(Dictionary msg) {
 		GD.PrintErr($"session msg: {msg}");
 		switch (msg["type"].AsString()) {
@@ -120,25 +99,17 @@ public partial class ChessGame : Node2D {
 				}
 				Vector2 mouseClicked = new(GD.StrToVar(msg["X"].ToString()).AsInt32(),
 					GD.StrToVar(msg["Y"].ToString()).AsInt32());
-				playerOpponent.HandleBoardPosClick(mouseClicked);
+				Game.OnPosClicked(mouseClicked, ChessCore.PlayerSideType.Opponent);
 				break;
 			case "undo":
-				if (msg["id"].ToString() == global.RPClient.GetUserId()) {
-					break;
-				}
-				playerOpponent.Undo();
+				Game.Undo();
 				break;
 			case "reInit":
-			 	_ReInit();
+				Game.ReInit();
 				break;
 		}
 	}
 
-	private void _ReInit() {
-		playerSelf.ReInit();
-		InitChessBoard();
-	}
-
 	private void BtnOver() {
 		GD.Print($"BtnOver {isSession}");
 		if (isSession == false) {
@@ -161,13 +132,12 @@ public partial class ChessGame : Node2D {
 		GD.Print($"Undo {isSession}");
 
 		if (isSession) {
-			playerSelf.Undo();
 			global.RPClient.SendSessionToAll(global.sessionId, new Dictionary{
 				{"type", "undo"},
 				{"id", global.RPClient.GetUserId()},
 			});
 		} else {
-			playerSelf.Undo();
+			Game.Undo();
 		}
 	}
 
@@ -179,7 +149,7 @@ public partial class ChessGame : Node2D {
 				{"type", "reInit"},
 			});
 		} else {
-			_ReInit();
+			Game.ReInit();
 		}
 	}
 }