Forreuse computercraft opti

hauteur=0
turtle.select(2)
function ender ()
  turtle.dig()
  turtle.select(4)
  turtle.place()
  sleep(1)
  turtle.select(1)
  turtle.drop()
  turtle.select(2)
  turtle.drop()
  turtle.select(3)
  turtle.drop()
  turtle.select(5)
  turtle.drop()
  turtle.select(6)
  turtle.drop()
  turtle.select(7)
  turtle.drop()
  turtle.select(8)
  turtle.drop()
  turtle.select(9)
  turtle.drop()
  turtle.select(10)
  turtle.drop()
  turtle.select(11)
  turtle.drop()
  turtle.select(12)
  turtle.drop()
  turtle.select(13)
  turtle.drop()
  turtle.select(14)
  turtle.drop()
  turtle.select(15)
  turtle.drop()
  turtle.select(4)
  sleep(1)
  turtle.dig()
  turtle.select(1)
 end
function remonte ()
 hauto=(hauteur*hauteur)
 hauto1=math.sqrt(hauto)
   for i=1,hauto1 do
    turtle.select(1)
    turtle.up()
    turtle.placeDown(1)
  end
end
function checkDown()
  succes,rim=turtle.inspectDown()
  ram=rim.name
   print(ram)
     if ram=="minecraft:bedrock"then
        print(hauto)
        remonte ()
        ender ()
        turtle.forward()
        turtle.forward()
        turtle.forward()
    end
 end
function desc ()
  turtle.digDown()
  turtle.down()
  hauteur=hauteur-1
 end
function turn ()
  turtle.turnLeft()
end
function check ()
  succes,min=turtle.inspect()
  print(min.name)
  mon=min.name
   if mon~=("minecraft:stone") and mon~=("minecraft:dirt") and mon~=("minecraft:grass") then
    turtle.dig()
    end
 end

       while true do
        check()
        turn()
        check()
        turn()
        check()
        turn()
        check()
        turn()
        checkDown()
        desc()
        print(hauteur)
        end