VolumeButton.Update C# (CSharp) Method

    void Update()
    {
        if (GetComponent<SpriteRenderer> ().enabled == true) {
            transform.GetComponentInChildren<SpriteRenderer> ().enabled = true;
            if (Input.GetKeyDown (KeyCode.LeftArrow)) {
                if (curVol > 0) {
                    transform.GetChild (0).transform.localPosition -= new Vector3 (1, 0, 0);
                    curVol--;
                }
            } else if (Input.GetKeyDown (KeyCode.RightArrow)) {
                if (curVol < maxVol) {
                    transform.GetChild (0).transform.localPosition += new Vector3 (1, 0, 0);
                    curVol++;
                }
            }
        } else {
            transform.GetComponentInChildren<SpriteRenderer> ().enabled = false;
        }
    }