Beta 5: Jittery Animation (in time)

[UrbanMonk]

I've noticed that when I close/pause my app and then open/resume it some time later the animations are jittery.

I'm not sure if something I'm doing in my code is causing it or not.

[color:#666666]When an app multitasks does it still run it's code in the background?[/color] - EDIT: Yes, apps do keep running their code in the background, they just stop rendering the frame.


I'll post an example mfa as soon as I can reproduce it faithfully.

EDIT: oh and I forgot to mention, Good Work with this runtime! You've really out done yourself this time Yves, and all who are involved!

[UrbanMonk]

Alright, here is a test app.

MFA:
http://jfile.us/888912d

XCode Project:
http://jfile.us/ccab3fd


Once the app is on your device, start it then minimize it and let it run for a while, then open it back up. You'll see that the animation has nearly doubled in speed!

I think that when the app is running in the background that the timer get's out of sync or something.

So go check it out, and let me know if you see the same behavior.

[Anders]

This is a common problem with timers on the iPhone in general it seems. The timer objects "Every" condition also seem to stack up a queue of events while minimized and then begins catching up as soon as you resume the game.
I will try to see if there is a way to pause the timers, both for animations and everything else.

When an app multitasks it should only keep running for a very short while in the background until which it is suspended by the operating system.

I can also see there is a bug with the text drawing on my screen, do you get that as well?

[UrbanMonk]

Yes, I got the text bug.

If you figure out how to pause the timers can you also give us the abilty to detect when an app is minimized so we can make it autopause when the user receives a phone call, ect. ?

[RhysD]

^ would be awesome! there's nothing more annoying than a game that doesn't pause when you get a call and you come back and find out it's game over