return function()
    local sneakTicks = 0
    local windowEvents = {nil, nil, nil}
    local windowDuration = 20
    local clockCounter = 0

    while _G.player == nil do
        os.sleep(0.05)
    end

    parallel.waitForAny(
    function() while _G._running do
        if player and windowEvents[3] ~= nil and windowEvents[3] + windowDuration >= clockCounter then
            local mainHand = player.heldItem and player.heldItem.getMetadata().name
            local offHand = player.offhandItem and player.offhandItem.getMetadata().name
            if mainHand == "openblocks:hang_glider" or offHand == "openblocks:hang_glider" then
                NI.launch(player.yaw, player.pitch, 4)
            end
        end
        os.sleep(0.05)
    end end,
    function() while _G._running do
        clockCounter = clockCounter + 1
        if player.isSneaking then
            sneakTicks = sneakTicks + 1
        elseif sneakTicks ~= 0 then
            windowEvents = {clockCounter, windowEvents[1], windowEvents[2]}
            sneakTicks = 0
        end
        os.sleep(0.05)
    end end)
end