Floor crafting table

function wood()
                redstone.setOutput("back",false)
                sleep(1)
                redstone.setOutput("left",true)
                sleep(0.5)
                redstone.setOutput("left",false)
                sleep(1)
                redstone.setOutput("back",true)

end

function crafting()
                redstone.setOutput("back",false)
                sleep(1)
                redstone.setOutput("right",true)
                sleep(0.5)
                redstone.setOutput("right",false)
                sleep(1)
                redstone.setOutput("back",true)

end

wood()
statut=wood

while true do

event = os.pullEvent("redstone")

       if redstone.getInput("front") and statut == wood then
                crafting()
                statut=craft
        end

       if redstone.getInput("front") and statut == craft then
                wood()
                statut=wood
        end

end