Floor BETA

local tArgs = { ... }
if #tArgs ~= 2 then
        print( "Usage: floor <x> <y>" )
        return
end

local x = tonumber( tArgs[1] )
local y = tonumber( tArgs[2] )

local slot = 2

if x < 1 then
        print( "X must be positive" )
        return
end

if y < 1 then
        print( "Y must be positive" )
        return
end

local function refuel()
    if turtle.getFuelLevel() == 0 then
        turtle.select(1)
        turtle.refuel(1)
    end
end

local function tryPlaceDown(i)
    if i < 17 then
        turtle.select(i)
        if turtle.getItemCount(i) == 0 then
            tryPlaceDown(i + 1)
        else
            turtle.placeDown()
        end
    else
        print("No more material")
        return
    end
end

local function tryForward()
    refuel()
    tryPlaceDown(slot)
    turtle.forward()
end

for i = 1, x do
    for j = 1, y - 1 do
        tryForward()
    end
    if i % 2 == 0 then
        turtle.turnLeft()
        tryForward()
        turtle.turnLeft()
    else
        turtle.turnRight()
        tryForward()
        turtle.turnRight()
    end
end
print("Job's done!")