branch.lua

os.loadAPI("apis/myTurtle")

local forward = myTurtle.forward
local back = myTurtle.back
local up = myTurtle.up
local down = myTurtle.down
local left = myTurtle.left
local right = myTurtle.right

local t = myTurtle

function digTunnel(len)
  local i = 1
  for i = 1, len do
    t.dig(forward)
    t.move(forward)
    t.dig(left)
    t.dig(up)
    t.move(up)
    t.dig(left)
    t.move(down)
  end
end

function digBranch(len)
  local i = 1
  local dug = 0
  repeat
    t.dig(forward)
    if t.move(forward) then
      dug = dug + 1
    end
    t.dig(up)
  until dug == len

  turtle.placeUp()

  t.turn(back)

  for i = 1, len do
    t.move(forward)
  end
end


print("start mining...")
turtle.select(1)

while 1 do
  local torches = turtle.getItemCount()
  if torches < 3 then
    break
  end

  digTunnel(3)

  t.turn(back)
  turtle.place()
  t.turn(left)

  digBranch(8)

  t.move(forward)
  digBranch(8)

  t.move(forward)
  t.turn(left)
end

print("mining finished!")

-- vim: ft=lua