I’m working on an iPad game which has many physics boxes reacting to gravity and colliding with each other. Using these objects, the game speed (with a 30 FPS setting) gets very slow. Each box is basically an image from a spritesheet using a rectangle shape. What are some of the top tips for increasing the speed when dealing with many physics objects?
Thanks!! [import]uid: 10284 topic_id: 4439 reply_id: 304439[/import]
Are you constantly removing and creating these objects? If so it may be a bug: http://developer.anscamobile.com/forum/2010/11/25/removing-physics-bodies [import]uid: 10903 topic_id: 4439 reply_id: 13876[/import]
Hmm no, they’re mostly always visible (until destroyed, but the speed problems happen right from the start). The problem is I have what might be a ridiculously high number of objects, 468. [import]uid: 10284 topic_id: 4439 reply_id: 13941[/import]
Wow… 468 physical objects! I would guess that’s way outside the limits of decent performance on any mobile device, using virtually any language. It might be possible if you code with native Obj-C and XCode, but even then, remember how little memory and processing power these mobile devices have compared to a desktop/laptop computer.
My suggestion is that you approach a new game idea, or somehow limit the number of physical objects. I don’t know the exact “limit” (50? 100+?) but 468 is ALOT. 
Best of luck!
Brent
[import]uid: 9747 topic_id: 4439 reply_id: 14158[/import]
Thanks, yes, I’m switching projects for now.
It’s worth noting though that even when I switched off the physics on the objects, the game was running faster but still not at 30 FPS… [import]uid: 10284 topic_id: 4439 reply_id: 14202[/import]