Pick Item code

--For use with the Advanced Macros Minecraft mod
function HarvestTree.selectItem(sitem, prefSlot, optInv)
  return HarvestTree.selectItemD(sitem, -1, prefSlot, optInv)
end
--select with damage value
function HarvestTree.selectItemD(sitem, sdmg, prefSlot, optInv)
  local inv = optInv or openInventory()
  local map = inv.mapping.inventory
  prefSlot = prefSlot or 1

  for i,j in pairs(map.hotbar) do
    local item = inv.getSlot(j)
    if item and( item.id==sitem and( sdmg==-1 or sdmg==item.dmg)) then

      setHotbar(i)
      return j
    end
  end
  for i,j in pairs(map.main) do
    local item = inv.getSlot( j )
    if item and (item.id==sitem and( sdmg==-1 or sdmg==item.dmg))  then
      setHotbar(prefSlot)
      local p = map.hotbar[prefSlot]
      inv.click(j)
      sleep(40)
      inv.click(p)
      sleep(40)
      if inv.getHeld() then
        inv.click(j)
        sleep(40)
      end
      if not optInv then inv.close() end
      return prefSlot
    end

  end
  return false
end