113 lines
3.6 KiB
TypeScript
113 lines
3.6 KiB
TypeScript
import { _decorator, assetManager, director, Director } from 'cc';
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const { ccclass } = _decorator;
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/**
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* 场景预加载管理器
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* 用于在当前场景加载后预加载下一个场景的资源
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*/
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@ccclass('ScenePreloadManager')
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export class ScenePreloadManager {
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private static _instance: ScenePreloadManager = null;
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// 场景预加载映射关系
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private readonly scenePreloadMap: Map<string, string[]> = new Map();
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// 记录已经预加载的场景
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private preloadedScenes: Set<string> = new Set();
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// 是否正在预加载
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private isPreloading: boolean = false;
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public static get instance(): ScenePreloadManager {
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if (!this._instance) {
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this._instance = new ScenePreloadManager();
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this._instance.initialize();
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}
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return this._instance;
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}
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private initialize(): void {
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// 设置预加载映射关系 - 使用简单的场景名称
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this.scenePreloadMap.set('lobby_arean', ['WoodenManScene']); // 大厅 -> 木头人
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this.scenePreloadMap.set('WoodenManScene', ['level2Scene']); // 木头人 -> 拔河
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this.scenePreloadMap.set('level2Scene', ['BallScene']); // 拔河 -> 弹珠
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// 监听场景加载完成事件
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director.on(Director.EVENT_AFTER_SCENE_LAUNCH, this.onSceneLoaded, this);
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}
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/**
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* 场景加载完成回调
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*/
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private onSceneLoaded(): void {
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// 获取当前场景名称
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const currentScene = director.getScene()?.name || '';
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console.log(`当前场景: ${currentScene}`);
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// 尝试预加载下一个场景
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this.preloadNextScenes(currentScene);
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}
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/**
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* 预加载下一个场景
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* @param currentScene 当前场景名称
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*/
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private preloadNextScenes(currentScene: string): void {
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if (this.isPreloading || !currentScene) return;
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// 获取下一个需要预加载的场景列表
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const nextScenes = this.scenePreloadMap.get(currentScene);
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if (!nextScenes || nextScenes.length === 0) return;
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this.isPreloading = true;
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// 延迟1秒进行预加载，避免影响当前场景加载
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setTimeout(() => {
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for (const nextScene of nextScenes) {
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// 如果已经预加载过，则跳过
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if (this.preloadedScenes.has(nextScene)) continue;
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console.log(`预加载场景: ${nextScene}`);
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this.preloadScene(nextScene);
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}
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this.isPreloading = false;
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}, 1000);
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}
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/**
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* 预加载指定场景
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* @param sceneName 场景名称
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*/
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private preloadScene(sceneName: string): void {
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try {
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// 简单直接地使用director预加载场景
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director.preloadScene(sceneName, (err) => {
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if (err) {
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console.error(`预加载场景失败: ${sceneName}`, err);
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return;
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}
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console.log(`预加载场景成功: ${sceneName}`);
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this.preloadedScenes.add(sceneName);
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});
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} catch (error) {
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console.error(`预加载场景出错: ${sceneName}`, error);
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}
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}
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/**
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* 手动预加载指定场景
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* @param sceneName 场景名称
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*/
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public preloadSceneManually(sceneName: string): void {
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if (this.preloadedScenes.has(sceneName)) return;
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this.preloadScene(sceneName);
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}
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/**
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* 清除预加载的场景缓存
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*/
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public clearPreloadCache(): void {
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this.preloadedScenes.clear();
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}
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}
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