gesluxe zoom gesture work around

PlayState.hx

    override function onenter<T>( _value:T ) {

        earth = new Sprite({
            texture : earth_texture,
            pos : new Vector(Luxe.screen.w/2, Luxe.screen.h),
        });

        transformGesture = new TransformGesture();
        transformGesture.events.listen(GestureEvent.GESTURE_BEGAN, onTransformGesture);
        transformGesture.events.listen(GestureEvent.GESTURE_CHANGED, onTransformGesture);
        transformGesture.events.listen(GestureEvent.GESTURE_ENDED, onTransformGestureEnded);

    } //onenter

    function onTransformGesture(event : GestureEventData) {

        // panning view (moving camera)
        earth.rotation_z += transformGesture.offsetX / 10;
        earth.pos.y = Luxe.screen.h/2 - 80 + (Luxe.screen.h/2 * (Luxe.camera.zoom / maximum_zoom));

        // zooming
        // trace(transformGesture.scale);
        if(transformGesture.scale != 1) {
            Luxe.camera.zoom = current_camera_zoom * transformGesture.scale;
            Luxe.camera.zoom = luxe.utils.Maths.clamp(Luxe.camera.zoom, minimum_zoom, maximum_zoom);

            trace(Luxe.camera.zoom);
        }

    } //onTransformGesture

    function onTransformGestureEnded(event : GestureEventData) {

        current_camera_zoom = Luxe.camera.zoom;
        // trace(current_camera_zoom);

    } //onTransformGestureEnded