void Start()
    {
        // rb = GetComponent<Rigidbody2D>();

        lifeSystem   = FindObjectOfType <numerovidas>();
        pointsSystem = FindObjectOfType <numeroPontos>();
        gameOver     = FindObjectOfType <gameoverScript>();
    }
 void Start()
 {
     rb           = GetComponent <Rigidbody2D>();
     anim         = GetComponent <Animator>();
     lifeSystem   = FindObjectOfType <numerovidas>();
     pointsSystem = FindObjectOfType <numeroPontos>();
     gameOver     = FindObjectOfType <gameoverScript>();
     maudioSrc    = GetComponent <AudioSource>();
 }