turtle_guard

os.loadAPI("betterTurtle")
betterTurtle.retrieveLocation()

while true do
    length = math.random(1,20)
    i = 1
    while i <= length do
        i = i + 1
        success = betterTurtle.forward()
        turtle.attack()
        if not success then
            i = length + 1
        end
        position = betterTurtle.retrieveLocation()
        x = position[1]
        z = position[3]
        if x > 10 or x < -10 or z > 10 or z < -10 then
            betterTurtle.turnRight()
            betterTurtle.turnRight()
            betterTurtle.forward()
            i = length + 1
        end
    end
    turn = math.random(1,4)
    i = 1
    while i <= length do
        i = i + 1
        betterTurtle.turnRight()
        turtle.attack()
    end
end