std::list<uint32> objects;

if (m_caster->GetMapId() == 4406)
{
    objects.push_back(194583); // axe
    objects.push_back(194584); // arena
    objects.push_back(194585); // lightning
    objects.push_back(194587); // ivory;
}
else if (m_spellInfo->Id == 70336)
    objects.push_back(70336);

if (!objects.empty())
{
    for(std::list<uint32>::iterator itr = objects.begin(); itr != objects.end(); ++itr)
    {
        // Description:
        // code check out if player is hidden behind GO in circle with diameter equal to GO size
        // with center placed on the perimeter of GO
        //     C<- caster
        //    / \<- cone of spell
        //   /   \
        //  / (o) \<- shelter object
        // /  (T)  \<- target in safty circle

        std::list<GameObject*>lObjectList;
        target->GetGameObjectListWithEntryInGrid(lObjectList, target, *itr, target->GetDistance2d(m_caster));
        float fTargetX, fTargetY, fTargetZ;
        float fCasterX, fCasterY, fCasterZ;
        target->GetPosition(fTargetX, fTargetY, fTargetZ);
        m_caster->GetPosition(fCasterX, fCasterY, fCasterZ);

        for (std::list<GameObject*>::iterator itr = lObjectList.begin(); itr != lObjectList.end(); ++itr)
        {
            float fObjectSize = (*itr)->GetGOInfo()->size;
            if (target->GetDistance2d(*itr) > fObjectSize)
                continue;

            float fObjectX, fObjectY, fObjectZ;
            (*itr)->GetPosition(fObjectX, fObjectY, fObjectZ);
            float fAlpha = m_caster->GetAngle(fTargetX, fTargetY);
            float fCircleX, fCircleY;
            fCircleY = fObjectY + fObjectSize*sin(fAlpha);
            fCircleX = fObjectX + fObjectSize*cos(fAlpha);
            if (target->GetDistance2d(fCircleX, fCircleY) <= fObjectSize)
                return false;
        }
    }
}