ObjectAttribute::TriggerReturn GearOneWayAttribute::evUpdateBegin(
        TriggerParams& params, float dt)
{
    initGear();
    _internal_gear->initGear();

    float input = _internal_gear->_vel;
    float k = 2.f;
    if(_one_way_reversed)
    {
        if(input > 0.f) {
            float dissipated = (input/float(_size) - _vel)/k;
            _power += dissipated;
            _internal_gear->_power -= dissipated;
        }
    }
    else {
        if(input < 0.f) {
            float dissipated = (input/float(_size) - _vel)/k;
            _power += dissipated;
            _internal_gear->_power -= dissipated;
        }
    }

    return TriggerReturn::Success;
}