void Start()
{
groundLayerMask = ((1 << groundLayer)) | ((1 << breakableFloorsLayer));
startPos = gameObject.transform.position;
rb2D = GetComponent <Rigidbody2D>();
rollingSource = GetComponent <AudioSource>();
rollingSource.clip = rollingSound;
rollingSource.volume = rollingVolume;
AM = Toolbox.GetInstance().GetAudioManager();
AM.AddAudioSources(rollingSource);
}