Game Physics on iPod Touch 2G - iPad
Hi everyone, I'm still testing feasibility for a 2D platformer Videogame in flash for the iOs.
I'm checking now how to implement a Physics engine. I checked Box2D for now, and it has a close to 0 FPS on the ipod touch 2g. I will try some code optimization, but do any of you think an engine like that one can perform decently on a late iphone, ipod touch or ipad?
Thanks a lot!
Any suggestion is welcome!
On a mobile device everything is about optimization, and I think this is especially true for an old gen device like iPhone2G. If you've checked out the game Space-On-Air on App Store, you would find out box2d-based flash game can run smoothly even on older gen of iOS.
Though I haven't done any experiment with box2D just yet. I think the reason that might slows down your app could be anything:
Were you using vector graphics?
If yes, did you cached them as bitmaps?
If they are being rotated or scaled, did you set cacheBitmapAsMatrix?
Have you tested on the lastest iPhone/Touch, cuz the CPU/GPU for 2G are not great, but they are good, that means you could have a much better performance or at least 10FPS on 2G once you take care of optimization.
Another thing that I'm concerned is box2D is said to be CPU-intensive running in Flash. So I strongly suggest you refine your code, avoid high iterations, set frame rate below 30FPS, choose GPU rendering...
Good luck!
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