Delay the application

misterhup · October 2015

Is there a way to pause the execution of an application for a specified amount of time? (other than using timers)
For example:

--code
pause the code 3 seconds
--after 3 seconds continue with the rest of the code

pie · October 2015

enterframe event and application:frameCount() or a difference between two os.timer values - I think that also Timer.delayedCall is a good option if you're not afraid of timers

totebo · October 2015

The safest way of doing this is using one central onEnterFrame event that all classes subscribe to. You can then remove this one listener to pause everything in the game, then add it back to resume.

In my case I usually have a GameLoop class that other classes listen to:

GameLoop = gideros.class(Sprite)
 
function GameLoop:init()
 
	self.sprite = Sprite.new()
	self.is_running = false
 
end
 
function GameLoop:start()
 
	self.sprite:addEventListener( Event.ENTER_FRAME, self.onEnterFrame, self )
	self.is_running = true
 
end
 
 
 
function GameLoop:stop()
 
	self.sprite:removeEventListener( Event.ENTER_FRAME, self.onEnterFrame, self )
	self.is_running = false
 
end
 
 
 
function GameLoop:onEnterFrame( e )
 
	self:dispatchEvent( Event.new("UPDATE") )
	self.frame_counter = 0
 
end
 
 
function GameLoop:isRunning()
 
	return self.is_running
 
end

totebo · October 2015

ps. I'm terrified of timers.

misterhup · October 2015

Thanks!

freessp · October 2015

I use Timer.pauseAll() for timers and GTween.pauseAll = true for tweens in my pause menu (as well as using a central onEnterFrame event like @totebo suggested.) Both of these, however, gave me some headaches and took a bit of rewriting and reorganizing of my code. Figuring out when to pause and resume these so they don't affect other things in the code can be tricky, but they are still useful in certain cases.

freessp · October 2015

ps. I'm not afraid of timers :P

ar2rsawseen · October 2015

You could make such function, but it is not suggested, as it halts all interface, usually you need to pause only some portion of your game, like box2d physics, etc, which can be achieved through mentioned methods.

But if you want the busy wait method, you could try this:
http://lua-users.org/wiki/SleepFunction

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