minecraft computercraft melee turtle program

function getItems()
turtle.drop()
 turtle.select(2)
  turtle.transferTo(1, 64)
   turtle.select(1)
    turtle.drop()
     turtle.select(3)
      turtle.transferTo(1, 64)
       turtle.select(1)
        turtle.drop()
         turtle.suckUp()
        end
while true do
sleep(1)
 turtle.attackUp()
  getItems()
end