Method UpdateFormationPos

engine/Poseidon/AI/AISubgroup.cpp:2112–2208

    return minUnit;
}

void AISubgroup::UpdateFormationPos()
{
    AI_ERROR(GetGroup());
    if (!GetGroup())
    {
        return;
    }

    int nTanks = 0;
    for (int i = 0; i < NUnits(); i++)
    {
        AIUnit* unit = GetUnit(i);
        if (!unit)
        {
            continue;
        }
        Transport* veh = unit->GetVehicleIn();
        if (!veh)
        {
            continue;
        }
        if (!unit->IsUnit())
        {
            continue;
        }
        if (veh->GetType()->HasGunner())
        {
            nTanks++;
        }
    }

    AIUnit* formUnits[MAX_UNITS_PER_GROUP];
    Vector3 formPos[MAX_UNITS_PER_GROUP];
    for (int i = 0; i < MAX_UNITS_PER_GROUP; i++)
    {
        formUnits[i] = nullptr;
        formPos[i] = VZero;
    }

    for (int i = 0; i < MAX_UNITS_PER_GROUP; i++)
    {
        AIUnit* unit = GetGroup()->UnitWithID(i + 1);

        int j = i; // formation index given by ID
        const FormInfo& info = formations[_formation][j];
        formUnits[j] = unit;

        formPos[j].Init();
        if (info.base >= 0)
        {
            AIUnit* base = formUnits[info.base];
            float fXBase = 1, fZBase = 1;
            float fXUnit = 1, fZUnit = 1;
            if (base)
            {
                EntityAI* baseVehicle = base->IsUnit() ? base->GetVehicle() : base->GetPerson();
                fXBase = baseVehicle->GetFormationX();