startup

while true do
    redstone.setOutput("back", redstone.getInput("front"))

    rightSide = redstone.getInput("right")
    frontSide = redstone.getInput("front")

    fillCommand1 = "/fill -484 68 252 -484 68 252 minecraft:"
    fillCommand2 = "/fill -484 68 253 -484 68 253 minecraft:"

    if not rightSide then
        print("Activating waterfall...")
        success, output = commands.exec(fillCommand1 .. "flowing_lava")
        success, output = commands.exec(fillCommand2 .. "flowing_lava")
    else
        print("Deactivating waterfall...")
        success, output = commands.exec(fillCommand1 .. "air")
        success, output = commands.exec(fillCommand2 .. "air")

        print("Sleeping for 60 seconds.")
        rs.setOutput("back", rs.getInput("front"))
        sleep(60)
    end

    sleep(3)
end