NoteWalk/assets/Script/Main.ts

import { EventType, ObserverManager } from './Manager/core/EventManager';
import PrefabManager from './Manager/core/PrefabManager';
import { UIID } from './Manager/core/UIID';
import CCUtils from './Utiles/CCUtils';

const { ccclass, property } = cc._decorator;

@ccclass
export default class Main extends cc.Component {
    public windowsLayer: cc.Node = null;

    start() {}
    protected onLoad(): void {}

    /**
     * 初始化
     *
     * @protected
     * @memberof Main
     */
    protected onEnable(): void {
        this.windowsLayer = CCUtils.findChild(this.node, 'windowsLayer');
        // 打开主界面
        PrefabManager.open(UIID.MainHome, this.windowsLayer);

        PrefabManager.open(UIID.GameMainPrefab, this.windowsLayer, (node: cc.Node) => {
            PrefabManager.close(node);
        });
        // 加载BGM

        // 监听管理类
        this.eventManager();
    }

    private eventManager(): void {
        // 打开游戏界面
        ObserverManager.addObserver(EventType.OpenGame, (data): void => {
            this.openGame(data);
        });
    }

    private openGame(data?: any): any {
        // 打开游戏界面 data.index 表示第几首歌      
        PrefabManager.close(UIID.MainHome);  
        PrefabManager.open(UIID.GameMainPrefab, this.windowsLayer);
    }
}