CC turtle

local x, y, z, running, rot
rot = "left"
dir = "Top"


function mine()
  if turtle.detect() then
    turtle.dig()
    sleep(0.5)
    mine()
  else
    turtle.forward()
  end
end

function turn()
  if rot == "left" then
    turtle.turnLeft()
    mine()
    turtle.turnLeft()
    rot = "right"
  else
    turtle.turnRight()
    mine()
    turtle.turnRight()
    rot = "left"
  end
end

function ascend()
  if dir == "top" then
    turtle.digUp()
    turtle.up()
  else
    turtle.digDown()
    turtle.down()
  end
  turtle.turnRight()
  turtle.turnRight()
end

function checkFuelNeed()
  if turtle.getFuelLevel() < 1 then
    for i = 1, 16 do -- loop through the slots
      turtle.select(i) -- change to the slot
      if turtle.refuel(0) then -- if it's valid fuel
        turtle.refuel(1) -- consume half the stack as fuel
        return true
      end
    end
    return false
  end
end

function awaitFuel()
  while checkFuelNeed() == false do
    print "Please feed me!"
    os.sleep(5)
  end
end

function runMiner()
  for ly = y, 1, -1 do
    for lz = z, 1, -1 do
      for lx = x, 2, -1 do
        awaitFuel()
        mine()
        print "mine"
      end
      if lz ~= 1 then
        turn()
        print "turn"
      else
        print "Fail turn"
      end
    end
    if ly ~= 1 then
      ascend()
      print "ascend"
    else
      print "Fail ascend"
    end
  end
  print "Done"
end

function init()
  print("Please enter the width of the quary")
  x = read()
  print("Please enter the height of the quary")
  y = read()
  print("Please enter the depth of the quary")
  z = read()
  print("Please enter the direction to dig to (left|right)")
  rot = read()
  print("Please enter the direction to dig to (top|bottom)")
  dir = read()
  runMiner()
end

init()