Added more null checks for Mesh/Sprite actionManager

src/babylon.scene.ts

@@ -906,10 +906,12 @@
                                     pickResult.pickedMesh.actionManager.processTrigger(ActionManager.OnRightPickTrigger, ActionEvent.CreateNew(pickResult.pickedMesh, evt));
                                     break;
                             }
-                            pickResult.pickedMesh.actionManager.processTrigger(ActionManager.OnPickDownTrigger, ActionEvent.CreateNew(pickResult.pickedMesh, evt));
+							if(pickResult.pickedMesh.actionManager){
+                                pickResult.pickedMesh.actionManager.processTrigger(ActionManager.OnPickDownTrigger, ActionEvent.CreateNew(pickResult.pickedMesh, evt));
+                            }
                         }
 
-                        if (pickResult.pickedMesh.actionManager.hasSpecificTrigger(ActionManager.OnLongPressTrigger)) {
+                        if (pickResult.pickedMesh.actionManager && pickResult.pickedMesh.actionManager.hasSpecificTrigger(ActionManager.OnLongPressTrigger)) {
                             var that = this;
                             window.setTimeout(function () {
                                 var pickResult = that.pick(that._unTranslatedPointerX, that._unTranslatedPointerY,
@@ -958,7 +960,9 @@
                                     pickResult.pickedSprite.actionManager.processTrigger(ActionManager.OnRightPickTrigger, ActionEvent.CreateNewFromSprite(pickResult.pickedSprite, this, evt));
                                     break;
                             }
-                            pickResult.pickedSprite.actionManager.processTrigger(ActionManager.OnPickDownTrigger, ActionEvent.CreateNewFromSprite(pickResult.pickedSprite, this, evt));
+							if(pickResult.pickedSprite.actionManager){
+                                pickResult.pickedSprite.actionManager.processTrigger(ActionManager.OnPickDownTrigger, ActionEvent.CreateNewFromSprite(pickResult.pickedSprite, this, evt));
+                            }
                         }
                     }
                 }
@@ -1003,13 +1007,14 @@
                     }
                     if (pickResult.pickedMesh.actionManager) {
                         pickResult.pickedMesh.actionManager.processTrigger(ActionManager.OnPickUpTrigger, ActionEvent.CreateNew(pickResult.pickedMesh, evt));
-
-                        if (Math.abs(this._startingPointerPosition.x - this._pointerX) < ActionManager.DragMovementThreshold && Math.abs(this._startingPointerPosition.y - this._pointerY) < ActionManager.DragMovementThreshold) {
-                            pickResult.pickedMesh.actionManager.processTrigger(ActionManager.OnPickTrigger, ActionEvent.CreateNew(pickResult.pickedMesh, evt));
+                        if(pickResult.pickedMesh.actionManager){
+                            if (Math.abs(this._startingPointerPosition.x - this._pointerX) < ActionManager.DragMovementThreshold && Math.abs(this._startingPointerPosition.y - this._pointerY) < ActionManager.DragMovementThreshold) {
+                                pickResult.pickedMesh.actionManager.processTrigger(ActionManager.OnPickTrigger, ActionEvent.CreateNew(pickResult.pickedMesh, evt));
+                            }
                         }
                     }
                 }
-                if (this._pickedDownMesh && this._pickedDownMesh !== pickResult.pickedMesh) {
+                if (this._pickedDownMesh && this._pickedDownMesh.actionManager && this._pickedDownMesh !== pickResult.pickedMesh) {
                     this._pickedDownMesh.actionManager.processTrigger(ActionManager.OnPickOutTrigger, ActionEvent.CreateNew(this._pickedDownMesh, evt));
                 }
 
@@ -1032,16 +1037,16 @@
                     if (pickResult.hit && pickResult.pickedSprite) {
                         if (pickResult.pickedSprite.actionManager) {
                             pickResult.pickedSprite.actionManager.processTrigger(ActionManager.OnPickUpTrigger, ActionEvent.CreateNewFromSprite(pickResult.pickedSprite, this, evt));
-
-                            if (Math.abs(this._startingPointerPosition.x - this._pointerX) < ActionManager.DragMovementThreshold && Math.abs(this._startingPointerPosition.y - this._pointerY) < ActionManager.DragMovementThreshold) {
-                                pickResult.pickedSprite.actionManager.processTrigger(ActionManager.OnPickTrigger, ActionEvent.CreateNewFromSprite(pickResult.pickedSprite, this, evt));
+                            if(pickResult.pickedSprite.actionManager){
+                                if (Math.abs(this._startingPointerPosition.x - this._pointerX) < ActionManager.DragMovementThreshold && Math.abs(this._startingPointerPosition.y - this._pointerY) < ActionManager.DragMovementThreshold) {
+                                    pickResult.pickedSprite.actionManager.processTrigger(ActionManager.OnPickTrigger, ActionEvent.CreateNewFromSprite(pickResult.pickedSprite, this, evt));
+                                }
                             }
                         }
                     }
-                    if (this._pickedDownSprite && this._pickedDownSprite !== pickResult.pickedSprite) {
+                    if (this._pickedDownSprite && this._pickedDownSprite.actionManager && this._pickedDownSprite !== pickResult.pickedSprite) {
                         this._pickedDownSprite.actionManager.processTrigger(ActionManager.OnPickOutTrigger, ActionEvent.CreateNewFromSprite(this._pickedDownSprite, this, evt));
                     }
-
                 }
             };