自定义重试策略，怀疑babylon默认的重试策略有bug

src/app/babylon/controller/scene-manager.ts

@@ -12,6 +12,7 @@ import {
   HemisphericLight,
   HighlightLayer,
   IParticleSystem,
+  ISceneLoaderProgressEvent,
   Mesh,
   MeshBuilder,
   Observable,
@@ -46,18 +47,18 @@ import { ModelInfo_mark } from '../model/info/mark/model-info-mark';
 import { MarkData, MarkType } from '../model/data/mark/mark-data';
 import { Event_KeyboardInput } from './event-manager/events/event-keyboard-input';
 import { ModelInfo_mark_area } from '../model/info/mark/other/mark-plan-area-info';
-import { classToClass, plainToClass } from 'class-transformer';
+import { plainToClass } from 'class-transformer';
 import { MarkData_Area } from '../model/data/mark/other/mark-data-area';
 import { MarkData_Line } from '../model/data/mark/other/mark-data-line';
 import { ModelInfo_mark_line } from '../model/info/mark/other/mark-plan-line-info';
-import { MarkData_multiLine } from '../model/data/mark/other/mark-data-multi-line';
-import { ModelInfo_mark_multiLine } from '../model/info/mark/other/mark-plan-multi-line-info';
+
 import { MarkData_multiArrow_CT, MarkData_multiArrow_JG } from '../model/data/mark/other/mark-data-multi-arrow';
 import { ModelInfo_mark_multiArrow } from '../model/info/mark/other/mark-plan-multi-arrow';
 import { ModelInfo_mark_particle } from '../model/info/mark/other/mark-plan-particle-info';
 import { FacilityPosType, ModelData_facility } from '../model/data/model-data/model-data-facility';
 import { LoadTool } from '../tool/load-tool';
 
+
 //场景管理器
 export class SceneManager {
   //----------------Camera-----------------\\
@@ -595,7 +596,11 @@ export class SceneManager {
             let box = SceneManager.importMeshSuccess(newMeshes, particleSystems, skeletons, animationGroups, modelInfo, needBox, modelData);
             //console.log("加载模型完成", modelData.resName);
             onSuccess(newMeshes, box, modelInfo);
-          }, null,
+          }, function (event: ISceneLoaderProgressEvent) {
+
+            //console.log(modelData.resName + "加载中", event, new Date().getTime());
+
+          },
           function (scene: Scene, message: string, exception?: any) {
 
             if (index < 5) {
@@ -930,6 +935,8 @@ class ImportMeshSyncData {
 
   onsuccessObservable: Observable<ImportMeshSyncCallBack>;
 
+
+
   constructor(path: string,
     name: string) {
     this.isBreak = false;
@@ -938,8 +945,13 @@ class ImportMeshSyncData {
     this.onsuccessObservable = new Observable();
   }
 
+
+
 }
 
+
+
+
 /**
  * 异步导入模型的回调
  */

src/app/babylon/game.ts

@@ -1,4 +1,4 @@
-import { Database, Engine, RenderingManager, Scene } from "@babylonjs/core";
+import { Database, Engine, FileTools, RenderingManager, Scene } from "@babylonjs/core";
 
 import { SceneManager } from "./controller/scene-manager";
 import { LoginSatus } from "./controller/status/login-status";
@@ -18,8 +18,9 @@ export class Game {
     //初始化引擎和画布
     public init(canvas: HTMLCanvasElement) {
 
-        // FileTools.DefaultRetryStrategy = MyRetryStrategy.ExponentialBackoff(2, 1000);
-        // FileTools.DefaultRetryStrategy = RetryStrategy.ExponentialBackoff(2, 1000);
+        FileTools.DefaultRetryStrategy = MyRetryStrategy.ExponentialBackoff(2, 1000);
+        //  FileTools.DefaultRetryStrategy = RetryStrategy.ExponentialBackoff(2, 1000);
+
         if (Game.instance != null) {
             // canvas.setAttribute("touch-action", "none");
             // canvas.style.touchAction = "none";
@@ -117,27 +118,30 @@ export class Game {
 
 }
 
-// /**
-//  * 重试策略
-//  */
-// var MyRetryStrategy = /** @class */ (function () {
-//     function RetryStrategy() {
-//     }
-//     /**
-//      * Function used to defines an exponential back off strategy
-//      * @param maxRetries defines the maximum number of retries (3 by default)
-//      * @param baseInterval defines the interval between retries
-//      * @returns the strategy function to use
-//      */
-//     MyRetryStrategy.ExponentialBackoff = function (maxRetries, baseInterval) {
-//         if (maxRetries === void 0) { maxRetries = 3; }
-//         if (baseInterval === void 0) { baseInterval = 500; }
-//         return function (url, request, retryIndex) {
-//             if (request.status !== 0 || retryIndex >= maxRetries || url.indexOf("file:") !== -1) {
-//                 return -1;
-//             }
-//             return Math.pow(2, retryIndex) * baseInterval;
-//         };
-//     };
-//     return MyRetryStrategy;
-// }());
+/**
+ * 重试策略
+ */
+var MyRetryStrategy = /** @class */ (function () {
+    function MyRetryStrategy() {
+    }
+    /**
+     * Function used to defines an exponential back off strategy
+     * @param maxRetries defines the maximum number of retries (3 by default)
+     * @param baseInterval defines the interval between retries
+     * @returns the strategy function to use
+     */
+    MyRetryStrategy.ExponentialBackoff = function (maxRetries, baseInterval) {
+        if (maxRetries === void 0) { maxRetries = 3; }
+        if (baseInterval === void 0) { baseInterval = 500; }
+        return function (url, request, retryIndex) {
+
+            if (request.status == 0 || retryIndex >= maxRetries || url.indexOf("file:") !== -1) {
+                console.log("不重试加载", request.status, retryIndex, url.indexOf("file:"));
+                return -1;
+            }
+            console.log("重试加载", request.status, retryIndex, url.indexOf("file:"));
+            return Math.pow(2, retryIndex) * baseInterval;
+        };
+    };
+    return MyRetryStrategy;
+}());

src/app/babylon/tool/babylon-tool.ts

@@ -134,6 +134,7 @@ export class BabylonTool {
     let modelPath = path + sceneFilename;
     LoadTool.add(modelPath, tag);
 
+
     let isSuccess = false;
     let plugin =
       SceneLoader.ImportMeshAsync(