cc_turtle_room

local tArgs = { ... }
if #tArgs ~= 1 then
        print( "Usage: makeroom <size>" )
        return
end
-- Mine in a spiral pattern
local size = tonumber( tArgs[1] )
if size < 1 then
        print( "Room size must be positive" )
        return
end

local collected = 0
local function collect()
        collected = collected + 1
        if math.fmod(collected, 25) == 0 then
                print( "Mined "..collected.." items." )
        end
end
local function tryDig()
        while turtle.detect() do
                if turtle.dig() then
                        collect()
                        sleep(0.5)
                else
                        return false
                end
        end
        return true
end
local function tryDigUp()
        while turtle.detectUp() do
                if turtle.digUp() then
                        collect()
                        sleep(0.5)
                else
                        return false
                end
        end
        return true
end
local function tryDigDown()
        while turtle.detectDown() do
                if turtle.digDown() then
                        collect()
                        sleep(0.5)
                else
                        return false
                end
        end
        return true
end
local function refuel()
        local fuelLevel = turtle.getFuelLevel()
        if fuelLevel == "unlimited" or fuelLevel > 0 then
                return
        end

        local function tryRefuel()
                for n=1,16 do
                        if turtle.getItemCount(n) > 0 then
                                turtle.select(n)
                                if turtle.refuel(1) then
                                        turtle.select(1)
                                        return true
                                end
                        end
                end
                turtle.select(1)
                return false
        end

        if not tryRefuel() then
                print( "Add more fuel to continue." )
                while not tryRefuel() do
                        sleep(1)
                end
                print( "Resuming Room." )
        end
end
local function tryUp()
        refuel()
        while not turtle.up() do
                if turtle.detectUp() then
                        if not tryDigUp() then
                                return false
                        end
                elseif turtle.attackUp() then
                        collect()
                else
                        sleep( 0.5 )
                end
        end
        return true
end
local function tryDown()
        refuel()
        while not turtle.down() do
                if turtle.detectDown() then
                        if not tryDigDown() then
                                return false
                        end
                elseif turtle.attackDown() then
                        collect()
                else
                        sleep( 0.5 )
                end
        end
        return true
end
local function tryForward()
        refuel()
        while not turtle.forward() do
                if turtle.detect() then
                        if not tryDig() then
                                return false
                        end
                elseif turtle.attack() then
                        collect()
                else
                        sleep( 0.5 )
                end
        end
        return true
end
local function channelForward(length)
   refuel()
   for i=1,length do
      tryDigUp()
      tryDigDown()
      tryForward()
  end
  return true
end
print( "Making Room..." )
n=1
while n < size do
        channelForward(n)
turtle.turnRight()
        channelForward(n)
turtle.turnRight()
n=n+1
end
channelForward(n-1)
tryDigUp()
tryDigDown()
print( "Room complete." )
print( "Mined "..collected.." items total." )