Cobble gen

nCobbleStoneCount = 0

local function dropAll()
    turtle.turnRight(); turtle.turnRight()

    for i=1, 9 do
        turtle.select( i ); turtle.drop( 64 )
    end

    turtle.select( 1 )

    turtle.turnLeft(); turtle.turnLeft()
end

local function getCobbleAmount()
    turtle.select( 1 )

    for i=1, 9 do
        if turtle.compare() then
            nCobbleStoneCount = nCobbleStoneCount + turtle.getItemCount( i )
        end
    end

    for i=1, 9 do -- Reselect the slot that can still be added to.
        if turtle.getItemCount( i ) ~= 64 then turtle.select( i ); return end
    end
end

while nCobbleStoneCount ~= 576 then -- 576 is the maximum amount of blocks that can be held by a turtle. 9 slots of 64 = 576.
    getCobbleAmount() -- Reload the amount of cobblestone in the inventory.
    if turtle.detect() then turtle.dig() end
end

dropAll()