[CC] Obsimaker

function pulse(side)
    redstone.setOutput(side, true)
    os.sleep(0.1)
    redstone.setOutput(side,false)
end

function condense()
    for slot=2,16 do
        turtle.select(slot)
        turtle.transferTo(1)
        if(turtle.getItemSpace(1) == 0) then
            break
        end
    end
    turtle.select(1)
end

while true do
    turtle.place()

    while true do
        os.pullEvent('redstone')
        if(redstone.getInput('back') == true) then
            break
        end
    end

    while true do
        if(redstone.getInput('back') == false) then
            break
        end

        pulse('left')
        os.sleep(0.2)
        turtle.place()
        if(turtle.getItemCount(1) == 0) then
            condense()
            if(turtle.getItemCount(1) == 0) then
                print("Done! Reload and press enter to continue.")
                read()
                break
            end
        end
        os.sleep(3)
    end
end