@Override
    public String toString() {
        switch (this) {
            case TOP_LEFT:
                return "TL";
            case TOP:
                return "T";
            case TOP_RIGHT:
                return "TR";
            case BOT_RIGHT:
                return "BR";
            case BOT:
                return "B";
            case BOT_LEFT:
                return "BL";
            case INIT:
                return "I";
        }
        return "???";
    }