/// <summary>
/// Action up and down of snake
/// </summary>
private void SetActionForSnake()
{
_actionOfSnake = DOTween.Sequence();
_actionOfSnake.Append(Trans.DOMoveY(0f, 1f).SetRelative().SetEase(Ease.Linear).
OnUpdate(CheckForGoOut));
_actionOfSnake.Append(Trans.DOMoveY(2f, 1f).SetSpeedBased(true).
SetRelative().SetEase(Ease.Linear).SetUpdate(UpdateType.Fixed));
_actionOfSnake.Append(Trans.DOMoveY(-2f, 2f).SetSpeedBased(true)
.SetRelative().SetEase(Ease.Linear).SetUpdate(UpdateType.Fixed).SetDelay(1f));
_actionOfSnake.SetLoops(-1, LoopType.Restart);
}