[Create Wall] Warzone System

function onUse(cid, item, fromPosition, itemEx, toPosition)

    local ITEM_POS = {x = x, y = y, z = z}
    local ITEM = getTileItemById(ITEM_POS, 17999)

    if (getGlobalStorageValue(17999) >= 6) then
        if (ITEM.uid > 0) then
           addEvent(doCreateItem, 30 * 1000, 17999, 1, toPosition)
           doRemoveItem(ITEM.uid)
        end
    return setGlobalStorageValue(17999, 0)
    end

    local error = nil
    local k = 0

    for LOOP = 1, 8 do
       if (doSummonCreature("Humongous Fungus", toPosition)) then
          if (doSummonCreature("Hideous Fungus", fromPosition)) then
             k = k + 1
          else
             error = debug.traceback("[WARNING] Can't create Hideous Fungus monster created " .. k .. "")
          end
       else
          error = debug.traceback("[WARNING] Can't create Humongous Fungus " .. k .. "")
       end
    end

    if (error) then
       print(error)
    end

    local val = getGlobalStorageValue(17999) < 0 and 0 or getGlobalStorageValue(17999)

    return setGlobalStorageValue(17999, getGlobalStorageValue(17999) + val)
end