Lua Slot system!

[Psyzinhoow]

How do I put this script to only work on, helmets, armor and shields?
He's working on td, boots, helmet, armor, legs, arms, shield td is to take it? is another thing, it's the percentages alone how do I by more than 10%?

script:

local conf = {
maxSlotCount=1,
ignoredIds={}
}

function choose(...)
        local arg = {...}
        return arg[math.random(1,#arg)]
end
if not getItemAttack then
        function getItemAttack(uid)
                return getItemAttribute(uid,'attack')
        end
        function getItemDefense(uid)
                return getItemAttribute(uid,'defense')
        end
end
local function isArmor(uid)
    if (getItemInfo(uid.itemid).armor ~= 0) and (getItemWeaponType(uid.uid) == 0) then
                return true
        end
        return false
end
local function isWeapon(uid)
        uid = uid or 0
        local f = getItemWeaponType(uid)
        if f == 1 or f == 2 or f == 3 then
                return true
        end
        return false
end
local function isShield(uid)
        uid = uid or 0
        if getItemWeaponType(uid) == 4 then
                return true
        end
        return false
end
local function isBow(uid)
        uid = uid or 0
        if getItemWeaponType(uid) == 5 and not isItemStackable(uid) then
                return true
        end
        return false
end
function onUse(cid, item, fromPosition, itemEx, toPosition)
        if item.uid == 0 or item.itemid == 0 then return false end
        toPosition.stackpos = 255
        if item.uid == 0 or item.itemid == 0 then return false end
        toPosition.stackpos = 255
    if isInArray(conf.ignoredIds, itemEx.itemid)
        or (not getItemWeaponType(itemEx.uid) or getItemWeaponType(itemEx.uid) > 5)
        or (getItemWeaponType(itemEx.uid) == 0 and not isArmor(itemEx))
        or itemEx.itemid == 0 or itemEx.type > 1 or isItemStackable(itemEx.uid) then
        doPlayerSendTextMessage(cid, 24,"Você não pode abrir um slot neste item.")
        return TRUE
    end
    if isCreature(itemEx.uid) then
        return FALSE
    end
        local nam = getItemName(itemEx.uid)
        function getper()
                local n = 1
                for i=1,10 do
                        n = n+math.random(0,10)
                        if n < 8*i then
                                break
                        end
                end
                return n
        end
        function getSlotCount(nam)
                local c = 0
                for _ in nam:gmatch('%[(.-)%]') do
                        c = c+1
                end
                return c
        end
        if getSlotCount(nam) < conf.maxSlotCount then
                local l = choose('hp','mp')
                local p = getper()

                doSendMagicEffect(toPosition,30)
                nam = nam..' ['..l..'.+'..p..'%]'
                doSendAnimatedText(toPosition,l..' '..p..'%',120)
                doItemSetAttribute(itemEx.uid,'name',nam)
                doRemoveItem(item.uid,1)
        else
                doPlayerSendTextMessage(cid, 24,"Você não pode abrir um slot neste item.")
        end
        return true
end

 

[Psyzinhoow]

@bump !

 

[Psyzinhoow]

@bump !
@topic, help plz !!

 

[Psyzinhoow]

bump krl