Wierd flickering when scrolling.

[DTownTony]

So I have spent the last day trying to create an "Angry Birds" style engine for a game, and its pretty far along except Ive realized now that the camera flickers like crazy when scrolling. It seems to be jumping back to the original view constantly. It works fine in MMF and as an exe but it once its a .swf BAM! goes nuts. The attached shows what i mean a little bit better (It has both an exe and a .sw file). It even does it if I simply use center the screen around one of the objects I fling, but not as often.

To fling something click and drag on the stick in the bottom left.

Let me know if anybody has any ideas.

Thanks

[wesleyd]

I have the same problem, i think you use the new box2d port.

In the first version of the port there is no problem, you can see in my game "angry mario" (search in google).

[DTownTony]

Do you by chance have a copy of the older version? I tried downloading it from the box2D thread but all of the links have been updated to the latest version.

[wesleyd]

Yes i have :

[Looki]

I would like Francois to have a word on this because I simply change the object position and angle and I don't see how the camera relates to that.

[DTownTony]

Thanks Wesleyd! I tried the older version, and it still has some issues but it definitely works a lot better. I may have to simplify my camera to work around a few more of the bugs, but its definately different between the two.

Looki- Do you think it would help if I sent you my file to take a quick look at? BTW, this is the greatest extension! Thank you SOOOOOOOO much for porting it over!

[Looki]

No, thanks, I can reproduce it myself! Glad you appreciate it I hope I can fix this for the next update.

[Francois]

Are you sure to you do not have TWO center display actions in your code? Flash does not like it, you must only have one.

[DTownTony]

Hi Francois, that was one of the issues(I want it to switch between camera views). I correct that by using a different method and only have one "center" point/action in the code. It now works with the older Box2D perfectly (occasionally the whole program will freeze up tho) but when I reinstall the latest Box2D it still has errors and flickers where it seems to want to center back at 0,0.

[Francois]

Then it must be an issue with Box2D I guess, sometimes returning 0 as position? The position of the scrolling is updated instantly in Flash, just as the action happens. In C++ it is done at the end of the loop.