mine

term.clear()
term.setCursorPos(1,1)
print("how many blocks forward?: ")
length = read()
length = length - 1

term.clear()
term.setCursorPos(1,1)
print("how many blocks wide?: ")
width = read()
width = width - 1

pipeNum = turtle.getItemCount(1)
powPipeNum = turtle.getItemCount(2)
pipeMaxNum = width + length
powPipeMaxNum = width + length + 1

function testFull()
  while pipeNum < pipeMaxNum do
    pipeNum = turtle.getItemCount(1)
    term.clear()
    term.setCursorPos(1,1)
    print(pipeMaxNum)
    print("pipes needed")
    sleep(0.5)
  end
  while powPipeNum < powPipeMaxNum do
    powPipeNum = turtle.getItemCount(2)
    term.clear()
    term.setCursorPos(1,1)
    print(powPipeMaxNum)
    print("power pipes needed")
    sleep(0.5)
  end
end

testFull()
turtle.forward()
turtle.turnLeft()
turtle.turnLeft()

function check()
  if turtle.getFuelLevel() <= 10 then
    turtle.select(4)
    turtle.refuel(1)
    turtle.select(1)
    turtle.print("i used 1 fuel")
  end
end

function line()
  turtle.select(3)
  turtle.place()
  turtle.up()
  turtle.select(2)
  turtle.place()
  check()
  sleep(5)
  turtle.down()
  turtle.dig()
  turtle.select(1)
  turtle.place()
  turtle.back()
end

function trueLine()
  for i = 1 , length do
    line()
  end
  turtle.select(3)
  turtle.place()
  turtle.up()
  turtle.select(2)
  turtle.place()
  sleep(5)
  turtle.down()
end

function newLine()
    turtle.select(1)
  for i = 1 , length do
    turtle.dig()
    turtle.forward()
    turtle.digUp()
  end
    turtle.dig()
    turtle.forward()
    turtle.digUp()
  turtle.turnLeft()
  turtle.forward()
  turtle.turnRight()
  turtle.select(1)
  turtle.place()
  turtle.up()
  turtle.select(2)
  turtle.place()
  turtle.down()
end

function cleanUp()
  for i = 1 , length do
    turtle.dig()
    turtle.forward()
    turtle.digUp()
  end
    turtle.dig()
    turtle.forward()
    turtle.digUp()
    turtle.dig()
    turtle.forward()
    turtle.digUp()
    turtle.turnRight()
  for i = 1 , width do
    turtle.dig()
    turtle.forward()
    turtle.digUp()
  end
    turtle.turnLeft()
    turtle.dig()
    turtle.turnRight()
  for i = 1 , 16 do
    turtle.select(i)
    turtle.drop()
  end
end

for i = 1 , width do
  trueLine()
  newLine()
  turtle.back()
end
  trueLine()
  cleanUp()