AddQuantity()

bool InventoryItem::AddQuantity ( float value, bool destroy_config = true, bool destroy_forced = false )

inlineprivate

add item quantity[related to varQuantity... config entry], destroy_config = true > if the quantity reaches varQuantityMin or lower and the item config contains the varQuantityDestroyOnMin = true entry, the item gets destroyed. destroy_forced = true means item gets destroyed when quantity reaches varQuantityMin or lower regardless of config setting, returns true if the item gets deleted

См. определение в файле ItemBase.c строка 3292

    {   
        return SetQuantity(GetQuantity() + value, destroy_config, destroy_forced);
    }

Перекрестные ссылки GetQuantity() и ItemBase::SetQuantity().