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    Frames per second

    seppseppseppsepp Member
    edited March 2013 in General questions
    Hi @all,

    is there a simple way to get the current frames per seconds count? I guess, Application:getFps() is something _different_, right?

    Thanks in advance!

    Sebastian
    Soledad - Charity Game | Birds and Trees
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    Comments

    • techdojotechdojo Guru
      Accepted Answer
      The simple way is to just use an enterFrame listener that keeps a check on the current time and then displays an average every 60 (or 30) frames. I have some code somewhere (and it's also available on here if you search) that will do that for you - although I suspect someone will post some code before I get chance to... :)
      WhiteTree Games - Home, home on the web, where the bits and bytes they do play!
      #MakeABetterGame! "Never give up, Never NEVER give up!" - Winston Churchill
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    • seppseppseppsepp Member
      Ok, thanks for the hint. Thats exactly what I do now. On "enterFrame" a counter gets increased. When this counter is higher then Application:getFps() I do measure times using os.timer() and do some math et voila - fps. (Btw: It's around 60 while rendering about 2000 sprites =) .)
      Soledad - Charity Game | Birds and Trees
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    • seppseppseppsepp Member
      Deployed on the iPad it actually says 104 fps :D .
      Soledad - Charity Game | Birds and Trees
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    • techdojotechdojo Guru
      Accepted Answer
      Here's the code I use
      -- -------------------------------------------------------------------------
-- local methods required to put an FPS counter on the screen...
 
 
local frame = 0
local timer = os.timer()
local qFloor = math.floor
local fps, scount	
 
local function updateFPS(e)
 
	frame = frame + 1
	if frame == 60 then
 
		local currentTimer = os.timer()
		fps:setText(""..qFloor(60 / (currentTimer - timer)))
 
		local width = fps:getWidth()
		fps:setPosition(WIDTH-(width+10), 28)	--HEIGHT-10)
		frame = 0; timer = currentTimer	
	end
end
 
-- -------------------------------------------------------------------------
 
initFPS = function(group)
 
	fps = TextField.new(nil,"  ")
	fps:setTextColor(0x00FFFF)
	fps:setScale(2,2)
	fps:addEventListener(Event.ENTER_FRAME,updateFPS)
	group:addChild(fps)
 
end
 
initFPS(stage)	-- Add a quick FPS counter on the screen (REMOVE for final build)
      WhiteTree Games - Home, home on the web, where the bits and bytes they do play!
      #MakeABetterGame! "Never give up, Never NEVER give up!" - Winston Churchill
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    • seppseppseppsepp Member
      Thanks. I did it a bit different - packed it into a Gideros class. But I did it basically the same way.
      Soledad - Charity Game | Birds and Trees
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    • plamenplamen Member
      enterFrame event will give you e.deltaTime so you just need fps=1/e.deltaTime or you can average 10-30 samples if you want
      https://www.facebook.com/Clouds0fSteel
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