MineLineDeluxe

local tArgs = {...}
local length = tonumber(tArgs[1]) or 100
print("Length " .. length)

-- Turtle Vars
local dist = 0
local dir = 0
local iterations = tonumber(tArgs[2]) or 1


if (tArgs[3] == "left" or tArgs[3] == "l") then
  dir = 0
else
  dir = 1
end

function Dig()
  while (turtle.detect()) do
    turtle.dig()
    sleep(0.5)
  end
end

function DigUp()
  while (turtle.detectUp()) do
    turtle.digUp()
    sleep(0.5)
  end
end

function DigStep()
  Dig()
  turtle.forward()
  DigUp()
  dist = dist + 1
end

function TurnAround(direction)
  if (direction == 1) then
    turtle.turnRight()
  else
    turtle.turnLeft()
  end
  DigStep()
  DigStep()
  DigStep()
  if (direction == 1) then
    turtle.turnRight()
    dir = 0
  else
    turtle.turnLeft()
    dir = 1
  end
end

-- Main
for i = 1, iterations do
  for j = 1, length do
    DigStep()
  end
  TurnAround(dir)
  for j = 1, length do
    DigStep()
  end
  TurnAround(dir)
end