local oisStackable = 1

local PhoneItems = {
["PhoneBrick0"] = "PhoneBrick",
["PhoneMoto0"] = "PhoneMoto",
}

function onPhonePatch(itemPayCard, itemPhone)
local monster = GetCurrentMerc()
local similar_item = PhoneItems[itemPhone:GetName()]
if CanDrag(itemPayCard) and similar_item ~= nil then
itemPhone:ChangeItemType(similar_item)
if itemPayCard:GetInfo():GetOtherInfo():GetSubType() == oisStackable and itemPayCard:GetOtherData():GetStackSize() > 1 then
if itemPayCard:DecSubCount() then
return nil, true
end
end
return itemPhone, true
end
return nil, false
end

function onBatteryChange(itemBattery, itemReciever)
local monster = GetCurrentMerc()
local condition_bat = itemBattery:GetCondition()
local condition_rec = itemReciever:GetCondition()
local modified = false

if CanDrag(itemBattery) then
itemReciever:SetCondition(condition_bat)
itemBattery:SetCondition(condition_rec)
modified = true
end
return nil, modified
end

-- тоже можно бы вынести в конфиг
AddItemCombineHandler("PayCard_mobile", "PhoneBrick0", onPhonePatch)
AddItemCombineHandler("PayCard_mobile", "PhoneMoto0", onPhonePatch)
AddItemCombineHandler("RadioBatt", "PhoneBrick", onBatteryChange)
AddItemCombineHandler("RadioBatt", "LRS900", onBatteryChange)
AddItemCombineHandler("RadioBatt", "Notebook", onBatteryChange)
AddItemCombineHandler("RadioBatt", "Mine_detector", onBatteryChange)
AddItemCombineHandler("RadioBatt", "portable_radio", onBatteryChange)

function CanDrag(item)
local monster = GetCurrentMerc()
-- проверяем что данный итем можно совмещать с другим путем drag'n'drop
return HUDState() ~= 5
and not item:IsShopItem()
end