[Pedido] Script de item que ganha items por porcentagem

local config = {
   [90] = {ID, COUNT},
   [80] = {ID, COUNT},
   [59] = {ID, COUNT},
   [50] = {ID, COUNT},
   [40] = {ID, COUNT},
   [30] = {ID, COUNT},
   [20] = {ID, COUNT},
   [10] = {ID, COUNT},
   [3] = {ID, COUNT},
   [1] = {ID, COUNT},
}
 
function onUse(cid, item)
   local chance_growing = {}
 
   for chance, _ in pairs(config) do
      table.insert(chance_growing, chance)
   end
 
   table.sort(chance_growing, function(a, b) return a > b end)
 
   local chance = 0
 
   for _, v in pairs(chance_growing) do
      if math.random(100) < v then
         chance = v
         break
      end
   end
 
   local item = config[chance]
   if item then
      doPlayerAddItem(cid, item[1], item[2])
      doPlayerSendTextMessage(cid, MESSAGE_EVENT_ADVANCE, "Você encontrou ".. item[2] .." ".. item[1] .. ".")
      doSendMagicEffect(getThingPos(cid), 13)
   else
      doPlayerSendTextMessage(cid, MESSAGE_EVENT_ADVANCE, "Não foi dessa vez, tente na próxima ):")
   end
 
   doRemoveItem(item.uid, 1)
   return true
end