checker

function checkFuel()
  if(turtle.getFuelLevel()<100) then
    turtle.select(1)
    turtle.placeDown()
    a = peripheral.wrap("bottom")
    a.setColours(colors.black,colors.black,colors.black)
    turtle.suckDown(64)
    turtle.refuel(64)
    turtle.digDown()
    os.sleep(1)
    return
  end
  return
end

function checkInv()
  if(turtle.getItemCount(16)>0) then
    turtle.select(1)
    turtle.placeDown()
    a = peripheral.wrap("bottom")
    a.setColours(colors.blue,colors.blue,colors.blue)
    for i=2,16 do
      turtle.select(i)
      turtle.dropDown(64)
    end
    turtle.select(1)
    turtle.digDown()
    os.sleep(1)
  end
end

checkFuel()
checkInv()