Flutter老虎机游戏插件flutter_slot_machine的使用

Flutter中的flutter_slot_machine插件提供了一个简单但高度可定制的老虎机组件。本文将介绍如何使用这个插件创建一个简单的老虎机游戏。

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示例代码

以下是一个完整的示例，展示了如何在Flutter应用中使用flutter_slot_machine插件来创建一个老虎机游戏。

1. 添加依赖

首先，在你的pubspec.yaml文件中添加flutter_slot_machine依赖：

dependencies:
  flutter:
    sdk: flutter
  slot_machine: ^x.x.x  # 确保替换为最新版本号

然后运行flutter pub get来安装新的依赖。

2. 创建主应用

接下来，我们将创建一个基本的Flutter应用，并集成老虎机功能。

import 'dart:math';

import 'package:flutter/material.dart';
import 'package:slot_machine/slot_machine.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Slot Machine Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Slot Machine Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key? key, required this.title}) : super(key: key);
  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  late SlotMachineController _controller;

  @override
  void initState() {
    super.initState();
  }

  void onButtonTap({required int index}) {
    _controller.stop(reelIndex: index);
  }

  void onStart() {
    final index = Random().nextInt(20);
    _controller.start(hitRollItemIndex: index < 5 ? index : null);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            SlotMachine(
              rollItems: [
                RollItem(
                    index: 0,
                    child: Image.asset('assets/images/roll_item_1.png')),
                RollItem(
                    index: 1,
                    child: Image.asset('assets/images/roll_item_2.png')),
                RollItem(
                    index: 2,
                    child: Image.asset('assets/images/roll_item_3.png')),
                RollItem(
                    index: 3,
                    child: Image.asset('assets/images/roll_item_4.png')),
                RollItem(
                    index: 4,
                    child: Image.asset('assets/images/roll_item_5.png')),
              ],
              onCreated: (controller) {
                _controller = controller;
              },
              onFinished: (resultIndexes) {
                print('Result: $resultIndexes');
              },
            ),
            Padding(
              padding: const EdgeInsets.only(top: 16),
              child: Row(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  SizedBox(
                    width: 72,
                    height: 44,
                    child: TextButton(
                        child: Text('STOP'),
                        onPressed: () => onButtonTap(index: 0)),
                  ),
                  SizedBox(width: 8),
                  SizedBox(
                    width: 72,
                    height: 44,
                    child: TextButton(
                        child: Text('STOP'),
                        onPressed: () => onButtonTap(index: 1)),
                  ),
                  SizedBox(width: 8),
                  SizedBox(
                    width: 72,
                    height: 44,
                    child: TextButton(
                        child: Text('STOP'),
                        onPressed: () => onButtonTap(index: 2)),
                  ),
                ],
              ),
            ),
            Padding(
              padding: const EdgeInsets.only(top: 24),
              child: TextButton(
                child: Text('START'),
                onPressed: () => onStart(),
              ),
            ),
          ],
        ),
      ),
    );
  }
}

3. 准备资源

确保你已经在assets目录下准备好所需的图片资源，并在pubspec.yaml中正确配置这些资源：

flutter:
  assets:
    - assets/images/roll_item_1.png
    - assets/images/roll_item_2.png
    - assets/images/roll_item_3.png
    - assets/images/roll_item_4.png
    - assets/images/roll_item_5.png

4. 运行应用

完成上述步骤后，你可以运行你的Flutter应用并看到一个简单的老虎机游戏界面。通过点击“START”按钮启动老虎机，点击“STOP”按钮停止特定滚筒。

这就是使用flutter_slot_machine插件创建老虎机游戏的基本方法。你可以根据需要进一步自定义和扩展此示例。