/\ algu assim? 
local function getItemInPos(pos)   local info = getTileInfo(pos)   local p = {x=pos.x, y=pos.y, z=pos.z}      for i = info.things, 1, -1 do      p.stackpos = i      local item = getTileThingByPos(p)      if item.itemid > 0 and not isCreature(item.uid) then         return item      end   end   return {itemid = 0, uid = 0}endlocal positions = {  {x = 1052, y = 1056, z = 7},  {x = 1052, y = 1057, z = 7},  {x = 1052, y = 1058, z = 7},  {x = 1052, y = 1059, z = 7},  {x = 1052, y = 1060, z = 7},  {x = 1052, y = 1051, z = 7}}local lastPos = nilfor i = 0, math.random(0, 19) do   lastPos = positions[(i%#positions)+1]     addEvent(doSendMagicEffect, i*150, lastPos, 6)   endlocal item = getItemInPos(lastPos)--agora podes usar item.itemid e item.uid