private void Start()
    {
        blade = GameObject.FindGameObjectWithTag("Blade").GetComponent <Blade>();

        audioSrc      = GetComponent <AudioSource>();
        sounds        = blade.GetComponents <AudioSource>();
        groundSound   = ground.GetComponent <AudioSource>();
        groundSoundL  = groundL.GetComponent <AudioSource>();
        groundSoundR  = groundR.GetComponent <AudioSource>();
        gameOverSound = gameOverPanel.GetComponent <AudioSource>();
    }