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    Call function after some time

    rrraptorrrraptor Member
    edited November 2015 in General questions
    I need to call some of the functions after some time. I've done this like that:
    function doAfterDelay(delay, f)
	local t = Timer.new(delay*1000, 1)
	t:start()
	t:addEventListener(Event.TIMER_COMPLETE, f, t)
end
    and call:
    if *something* then
	doAfterDelay(0.08, function(t, event)
		-- some code here
		t = nil
		event:stopPropagation()
	end)
end
    Is that method good? Can it cause a memory leak, or I do not need to worry about it?
    I have another solution, but this is a bit easier to understand)))

    P.S. Sorry if my eng. is not good enough :)
    SuperShape | Nice blured shapes with shadows | Simple button pad | Simple layer class | Simple UI library | 2D camera lib | Color picker | FPS graph | Dear ImGui | cute_c2
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    Comments

    • piepie Member
      Accepted Answer
      You're doing the hard way what Timer.delayedCall(ms, function) does :)
      Timer.delayedCall(1000, function() print("this is delayed by 1 second: 1000 ms") end)
      I don't know why people are afraid of timers though :)
      One alternative could be to keep a counter in enterframe, and do something on certain count.

      Likes: rrraptor

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    • rrraptorrrraptor Member
      You're doing the hard way what Timer.delayedCall(ms, function) does :)
      Wow, didnt know about that, thanx :)
      One alternative could be to keep a counter in enterframe, and do something on certain count.
      I dont need EnterFrame event. May be later, but...i dont think so.

      SuperShape | Nice blured shapes with shadows | Simple button pad | Simple layer class | Simple UI library | 2D camera lib | Color picker | FPS graph | Dear ImGui | cute_c2
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    • ar2rsawseenar2rsawseen Maintainer
      Even better, that function returns Timer object, so you can use it later on, like stopping, it, etc.
      local timer = Timer.delayedCall(100, function() end)
timer:stop()

      Likes: pie, antix, Tom2012

      http://appcodingeasy.com/Gideros-Mobile
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    • Tom2012Tom2012 Guru
      @ar2rsawseen hi :) Whats the advantage of using that code? Will a delayed call timer not be garbage collected once it is finished?

      Asking because my game has a zillion delayedcall timers :)
      Lost Caverns - my little game on Play Store - https://play.google.com/store/apps/details?id=com.firecroc.lostcaverns
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    • ar2rsawseenar2rsawseen Maintainer
      If you won't hold the reference to it, then it will be garbage collected.
      Underneath Timer.delayedCall does exactly as creating new timer, setting events, starting timer and returning it.

      So it would behave the same way, only less code for you to write
      http://appcodingeasy.com/Gideros-Mobile
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