// Use this for initialization
    void Start()
    {
        // Get required components
        _model = GetComponent<EntryFieldModel> ();
        _handler = GetComponent<EntryFieldHandler> ();
        _wordBuilder = GameObject.Find ("Builder").GetComponent<WordBuilder>();

        // Hook event handlers
        ConnectEvents ();
    }
    // Use this for initialization
    void Awake()
    {
        // Set initial values
        _letter1 = null;
        _letter2 = null;
        _letter3 = null;
        _letter4 = null;
        _isFull = false;
        _isEmpty = true;
        _nextIndex = 0;

        // Get required components
        _handler = GetComponent<EntryFieldHandler> ();
    }