digdig.lua

--

--how far foreward
local howFar = 128
local triesBeforeFailue = 16

--reverse to begining or wait at end
--local rtn = true --get back over that lava

local t = turtle --lazy typing
local pos = 0
local try = 0
--local returnNow = false

t.select(16) -- slot with torches, or mine will start here, good for nether

for i = 1, howFar do
    pos = i
    try = 0
    f = t.detect()
    u = t.detectUp()
    d = t.detectDown()
    while f or u or d do
        if f then t.dig(); end
        if u then t.digUp(); end
        if d then t.digDown(); end
        try = try + 1
        if try > triesBeforeFailue then
            print("Attempted "..try.." tries.  Attempting continue from pos:"..pos)
            break
        end
        sleep(0.05)
        f = t.detect()
        u = t.detectUp()
        d = t.detectDown()
        if not d and math.fmod(i, 8) == 0 then
            if not t.placeDown() then
                print("I'm scared of the dark:"..pos)
                break
            end
        end
    end
    if not t.forward() then
        print("this baby ain't going nowhere!")
        break
    end
    try = 0
    sleep(0.05)
end

print("Got to: "..pos)

t.turnRight()
t.turnRight()

for i = pos, 1, -1 do
    while not t.forward() do
        t.dig()
    end
    sleep(0.05)
end