修复Time不传入dt获取deltaTime错误问题

source/bin/framework.d.ts

@@ -2189,7 +2189,7 @@ declare module es {
         /** 自场景加载以来的总时间 */
         static timeSinceSceneLoad: number;
         private static _lastTime;
-        static update(currentTime: number): void;
+        static update(currentTime: number, useEngineTime: boolean): void;
         static sceneChanged(): void;
         /**
          * 允许在间隔检查。只应该使用高于delta的间隔值，否则它将始终返回true。

source/bin/framework.js

@@ -230,7 +230,7 @@ var es;
                     if (Core.paused) {
                         return [2 /*return*/];
                     }
-                    es.Time.update(currentTime);
+                    es.Time.update(currentTime, currentTime != -1);
                     if (this._scene != null) {
                         for (i = this._globalManagers.length - 1; i >= 0; i--) {
                             if (this._globalManagers[i].enabled)
@@ -5680,18 +5680,18 @@ var es;
     var Time = /** @class */ (function () {
         function Time() {
         }
-        Time.update = function (currentTime) {
+        Time.update = function (currentTime, useEngineTime) {
-            if (currentTime == -1) {
-                currentTime = Date.now();
-            }
-            if (this._lastTime == -1)
-                this._lastTime = currentTime;
             var dt = 0;
-            if (currentTime == -1) {
+            if (useEngineTime) {
-                dt = (currentTime - this._lastTime) / 1000;
+                dt = currentTime;
             }
             else {
-                dt = currentTime;
+                if (currentTime == -1) {
+                    currentTime = Date.now();
+                }
+                if (this._lastTime == -1)
+                    this._lastTime = currentTime;
+                dt = (currentTime - this._lastTime) / 1000;
             }
             if (dt > this.maxDeltaTime)
                 dt = this.maxDeltaTime;

source/src/Core.ts

@@ -182,7 +182,7 @@ module es {
                 return;
             }
 
-            Time.update(currentTime);
+            Time.update(currentTime, currentTime != -1);
             if (this._scene != null) {
                 for (let i = this._globalManagers.length - 1; i >= 0; i--) {
                     if (this._globalManagers[i].enabled)

source/src/ECS/Utils/Time.ts

@@ -17,18 +17,19 @@ module es {
         public static timeSinceSceneLoad: number = 0;
         private static _lastTime = -1;
 
-        public static update(currentTime: number) {
+        public static update(currentTime: number, useEngineTime: boolean) {
-            if (currentTime == -1) {
-                currentTime = Date.now();
-            }
-            if (this._lastTime == -1)
-                this._lastTime = currentTime;
-
             let dt = 0;
-            if (currentTime == -1) {
+            if (useEngineTime) {
-                dt = (currentTime - this._lastTime) / 1000;
-            } else {
                 dt = currentTime;
+            } else {
+                if (currentTime == -1) {
+                    currentTime = Date.now();
+                }
+
+                if (this._lastTime == -1)
+                    this._lastTime = currentTime;
+
+                dt = (currentTime - this._lastTime) / 1000;
             }
             
             if (dt > this.maxDeltaTime)