import 'package:flutter/services.dart';

/// Unity控制器，用于Flutter与Unity之间的通信
class UnityController {
  // 通信通道
  static const MethodChannel _channel = MethodChannel('com.yourcompany.unity_flutter/unity');
  
  // 单例实例
  static final UnityController _instance = UnityController._internal();
  
  // 工厂构造函数
  factory UnityController() {
    return _instance;
  }
  
  // 内部构造函数
  UnityController._internal();

  /// 打开Unity场景
  /// [sceneName] Unity场景名称
  Future<bool> openUnityScene(String sceneName) async {
    try {
      final bool result = await _channel.invokeMethod('openUnity', {
        'sceneName': sceneName,
      });
      return result;
    } on PlatformException catch (e) {
      print('打开Unity场景失败: ${e.message}');
      return false;
    }
  }

  /// 关闭Unity
  Future<bool> closeUnity() async {
    try {
      final bool result = await _channel.invokeMethod('closeUnity');
      return result;
    } on PlatformException catch (e) {
      print('关闭Unity失败: ${e.message}');
      return false;
    }
  }

  /// 向Unity发送消息
  /// [gameObject] Unity中的游戏对象名称
  /// [methodName] 要调用的方法名
  /// [message] 要发送的消息内容
  Future<bool> sendMessageToUnity({
    required String gameObject,
    required String methodName,
    required String message,
  }) async {
    try {
      final bool result = await _channel.invokeMethod('sendMessageToUnity', {
        'gameObject': gameObject,
        'methodName': methodName,
        'message': message,
      });
      return result;
    } on PlatformException catch (e) {
      print('向Unity发送消息失败: ${e.message}');
      return false;
    }
  }
}