bool checkLeftTrigger()
{
    if (this->_E != 0)
        return false;

    r0 = this->_C;

    if (r0 == r0 & 0x01)
        return false;

    r0 = this->_18;
    this->_E = r0;

    r4 = this->_1E;
    if (r4 != 0)
    {
        r0 = r4 + -1;
        this->_1E = r0;
        return true;
    }

    r4 = this->_16;
    r0 = this->_18;

    r0 = r4 - r0;
    this->_18 = r0;

    r0 = this->_18;
    r4 = this->_14;

    if (r0 > r4)
        return true;

    this->_18 = r4;
    return true;
}