ActionCondition()

override bool ActionCondition	(	PlayerBase	player,
		ActionTarget	target,
		ItemBase	item )

См. определение в файле ActionFillFuel.c строка 32

    {
        if (!target)
            return false;
        
        Transport transport = Transport.Cast(target.GetObject());
        if (!transport)
            return false;
        
        if (transport.IsDamageDestroyed())
            return false;
 
        if (item.GetQuantity() <= 0)
            return false;
 
        if (item.GetLiquidType() != LIQUID_GASOLINE)
            return false;
 
        if (transport.GetFluidFractionScript(ETransportFluid.FUEL) >= 0.98)
            return false;
 
        TStringArray selections = new TStringArray();
        transport.GetActionComponentNameList(target.GetComponentIndex(), selections);
        
        foreach (string selection : selections)
        {
            if (selection == transport.GetActionCompNameFuel())
            {
                float dist = vector.DistanceSq(transport.GetRefillPointPosWS(), player.GetPosition());
 
                if (dist < transport.GetActionDistanceFuel() * transport.GetActionDistanceFuel())
                    return true;
            }
        }
 
        return false;
    }

Перекрестные ссылки ActionTarget(), vector::DistanceSq(), LIQUID_GASOLINE и TStringArray.