room2

local args = {...}
local xCurrent, zCurrent = 1, 1
local xMax, zMax
local facing = 0 --start 0, gedreht 1
if #args == 2 then
	xMax = tonumber(args[1])
	zMax = tonumber(args[2])
elseif #args==0 then
    xMax, zMax = 3, 3
end

function digUpDown()
    while turtle.detectUp() do
        turtle.digUp()
        sleep(1)
    end
    while turtle.detectDown() do
        turtle.digDown()
        sleep(1)
    end
end

function dig()
    digUpDown()

    if turtle.detect() then
        while turtle.detect() do
                turtle.dig()
                sleep(1)
        end
    end
end



function start()
	turtle.refuel()
    while zCurrent <= zMax do
        if facing == 0 then
            while xCurrent < xMax do
                dig()
                turtle.forward()
                xCurrent = xCurrent +1
            end
            if zCurrent < zMax then
                turtle.turnLeft()
                dig()
                turtle.forward()
                turtle.turnLeft()
                zCurrent = zCurrent +1
                facing = 1
            else
                digUpDown()
            end
        end

        if facing == 1 then
            while xCurrent > 1 do
                dig()
                turtle.forward()
                xCurrent = xCurrent -1
            end
            if zCurrent < zMax then
                turtle.turnRight()
                dig()
                turtle.forward()
                turtle.turnRight()
                zCurrent = zCurrent +1
                facing = 0
            else
                digUpDown()
            end
        end
    end
end




--Begin
if #args == 2 then
    start()
elseif #args == 0 then
    start()
else
    print("Usage: room <x> <z>")
end