JBZoo\SimpleTypes\Type\Type::invert PHP Method

    public function invert($getClone = false)
    {
        $logMess = 'Invert sign';
        if ($this->_value > 0) {
            $newValue = -1 * $this->_value;
        } elseif ($this->_value < 0) {
            $newValue = abs($this->_value);
        } else {
            $newValue = $this->_value;
        }
        return $this->_modifer($newValue, $logMess, $getClone);
    }