[event surprise] action

 function onUse(cid, item, fromPosition, itemEx, toPosition)
            local q = {
                a = {1111, 2222, 3333, 4444, 5555, 6666, 0}, -- Id of items which surprise package can create (0 means nothing).
                b = {1, 2} -- Amount of create items (random).
            }
            local r, s, t, u = q.a[math.random(1, #q.a)], getItemNameById(r), amount[math.random(1, #q.b)], getCreaturePosition(cid)

            if(r == 0) then
                doCreatureAddHealth(cid, -(math.random(20,100)))
                doSendMagicEffect(u, CONST_ME_EXPLOSIONHIT)
                doPlayerSendTextMessage(cid, 4, "It was a trap! Surprise package burned you!")
            else
                doPlayerAddItem(cid, r, t)
                doSendMagicEffect(u, CONST_ME_GIFT_WRAPS)
                doPlayerSendTextMessage(cid, 4, "Surprise package gave you ".. t .."x of ".. s ..".")
            end
            return true
        end