void OnTriggerStay(Collider col){

        if (col.tag == "Right Gate") {
            Debug.Log ("Pasok");
            float currentRotationY = this.gameObject.transform.localRotation.y;
            float goalRotation = 90f;
            Quaternion target = Quaternion.Euler (0, goalRotation, 0);
            this.gameObject.transform.localRotation = Quaternion.Slerp (this.gameObject.transform.localRotation, target, Time.deltaTime * 3f);
        } else if (col.tag == "Left Gate") {
            Debug.Log ("Pasok");
            float currentRotationY = this.gameObject.transform.localRotation.y;
            float goalRotation = -90.0f;
            Quaternion target = Quaternion.Euler (new Vector3(0, goalRotation, 0));
            this.gameObject.transform.localRotation = Quaternion.Slerp(this.gameObject.transform.localRotation, target, Time.deltaTime * 2f);


        }
    }