feat(all): 离线包迁移

packages/sdk/lib/core/viewer/Viewer.ts

@@ -32,6 +32,7 @@ import ParticleEmitter from "@/core/objects/ParticleEmitter.ts";
 import {ViewerPathTracer} from "@/core/viewer/ViewerPathTracer.ts";
 import {Helper as ScriptHelper} from "../script";
 import Tiles from "../objects/Tile.ts";
+import {Package} from "@/core/loader/Package";
 
 export interface ViewerEventMap {
     // 场景加载完成时执行，仅执行一次
@@ -198,6 +199,7 @@ export default class Viewer extends THREE.EventDispatcher<ViewerEventMap> {
     public timer = new Timer();
     //整个主场景的box3
     public sceneBox3 = new THREE.Box3();
+    public package: Package;
 
     constructor(options: IViewerSetting) {
         super();
@@ -216,6 +218,7 @@ export default class Viewer extends THREE.EventDispatcher<ViewerEventMap> {
         this.renderer = this.createEngine();
 
         this.modules = this.initModules();
+        this.package = new Package(this);
 
         /** helpers **/
         if (this.options.grid.enabled) {
@@ -1148,6 +1151,8 @@ export default class Viewer extends THREE.EventDispatcher<ViewerEventMap> {
         this.dispatchEvent({type: "afterDestroy"});
 
         this.unInstallScripts();
+        this.package?.dispose();
+        this.package = null as any;
     }
 
     /* -----------------暂时放在Viewer下的工具方法-------------------- */