allow generic objects animation filtering

src/lib/GameEngine.js

@@ -94,7 +94,7 @@ class GameEngine extends EventManager{
 
         if (this.opts.gizmo) {
             this.orbitControls = new OrbitControls(this.camera, this.renderer.domElement);
-            this.orbitControls.enableZoom = false;
+            //this.orbitControls.enableZoom = false;
             const gizmo = new ViewportGizmo(this.camera, this.renderer, {
                 container: '.renderer-gizmo',
                 //type:'cube'
@@ -501,8 +501,8 @@ class GameEngine extends EventManager{
 
     playAnimation(object, clip, play = true) {
         let action = this.mixers[0].clipAction(clip, object);
-        if (play) action.play();
-        else action.stop();
+        action[play ? 'play' : 'stop']();
+        return action;
     }
 
     stop() {