howFarDist = 0

function howFarFunc()
howFarDist = read()

if tonumber(howFarDist) ~= nil then
    howFarDist = tonumber(howFarDist)
else
    textutils.slowPrint("Please enter a numeric value")
    sleep(1)
    term.clear()
    textutils.slowPrint("How far would you like to go?")
    howFarFunc()
end

    if howFarDist <= 0 then
        textutils.slowPrint("You cannot move the turtle")
        textutils.slowPrint("0 or less blocks, stupid.")
        sleep(1)
        term.clear()
        textutils.slowPrint("How far would you like to go?")
        howFarFunc()
    end
end

function confirm(direction)
term.clear()
textutils.slowPrint("So...")
sleep(2)
textutils.slowPrint("You would like the turtle to:")
sleep(1)
textutils.slowPrint("Travel "..howFarDist.." blocks.")
textutils.slowPrint("(Facing "..direction..".)")
sleep(1)
textutils.slowPrint("Is this correct?")
textutils.slowPrint("(Type Y for yes or anything else for no.)")
YorNinput = read()

if YorNinput == "Y" then
    term.clear()
    textutils.slowPrint("Starting...")

    if direction == "left" then
        turtle.turnLeft()
    elseif direction == "right" then
        turtle.turnRight()
    elseif direction == "back" then
        turtle.turnLeft()
        turtle.turnLeft()
    end

    sleep(1)
else
    term.clear()
    textutils.slowPrint("Okay then... Restarting program.")
    sleep(1)
    term.clear()
    Main()
end

end

local howFar = "How far would you like to go "


function Start()
term.clear()
Main()
end

function Main()
textutils.slowPrint("Hello user!")
sleep(1)
textutils.slowPrint("What direction do you want me")
textutils.slowPrint("to go in?")
local dirinput = read()

if dirinput == "left" then
textutils.slowPrint(howFar.."left?")
howFarFunc()
confirm("left")

elseif dirinput == "right" then
textutils.slowPrint(howFar.."right?")
howFarFunc()
confirm("right")

elseif dirinput == "forward" then
textutils.slowPrint(howFar.."forward?")
howFarFunc()
confirm("forward")

elseif dirinput == "back" then
textutils.slowPrint(howFar.."back?")
howFarFunc()
confirm("back")

else
textutils.slowPrint("Please input either:")
textutils.slowPrint("\"forward\"")
sleep(1)
textutils.slowPrint("\"back\"")
sleep(1)
textutils.slowPrint("\"left\"")
sleep(1)
textutils.slowPrint("or")
sleep(1)
textutils.slowPrint("\"right\"")
sleep(2)
textutils.slowPrint("Restarting program...")
sleep(2)
term.clear()
Main()
end
end

Start()