startup

shell.run("refuel")

function clear()
while turtle.detect() == false do
  turtle.forward()
end
end
clear()

print("Obstacle reached")
print("Scanning area")
counter=0
function escape()
  while turtle.detect() == true do
    counter=counter+1
    turtle.turnLeft(90)
    if counter == 4 then
      turtle.up()
      print("Risen")
    end
    if counter > 5 then
      counter=0
    end

  end
end
escape()
function go()
print("Exit found")
turtle.forward()
turtle.forward()

end
while true do
clear()
escape()
go()
end