defloor.lua

function fwd(stp)
  for c=1,stp do
    while turtle.detect() do
     turtle.dig()
     sleep(0.25)
     end
    turtle.forward()
    turtle.digUp()
    turtle.digDown()
  end
end

function left(stp)
 for c=1, stp do
  turtle.turnLeft()
 end
end

function right (stp)
 for c=1, stp do
  turtle.turnRight()
 end
end

fwd(88)
right(1)
fwd(1)
right(1)
fwd(88)
left(1)
fwd(1)
left(1)
fwd(88)
right(1)
fwd(1)
right(1)
fwd(88)
left(1)
fwd(1)
left(1)
fwd(88)
left(1)
fwd(4)
left(1)
fwd(88)