Hi Andre, Everyone here has brought up great points: 1) Matrix manipulation is slow. Instead, rotate and store bitmaps ahead of time (note: initial loading time will be longer). 2) Don't use getter/setters, instead make commonly used attributes public. 3) Don't call System.currentTimeMillis() or other methods so frequently just cache the value (also, use System.uptimeMillis() instead, see: http://groups.google.com/group/android-developers/browse_thread/thread/f355a2fde748e0c9). 4) Learn the performance doc by heart and follow its guidelines. I recommend always keep performance in the back of your mind and optimize frequently. 5) Never let the garbage collector run during gameplay, manually invoke the GC during lulls.
Also, I noticed you are calling asteroid.width / 2. Don't do this. Instead, cache the value (halfWidth = width / 2) or, if you must, use width >> 1. I'd also be more than happy to test your game. If you email me or post it here, I'll let you know how it runs on my Google Ion (MyTouch). - Jason On Jan 20, 4:14 pm, Zsolt Vasvari <zvasv...@gmail.com> wrote: > I was previously involved with game emulator development. No way that > the speed of the emulator for a 500+ Mhz processor will be faster on a > 2GHz computer than the real device. > > It doesn't matter if it's dual-core or not -- processor emulation is > pretty much single threaded. > > On Jan 21, 2:15 am, Frank Weiss <fewe...@gmail.com> wrote: > > > I wouldn't expect a emulated code to run faster than on the target hardware. > > Perhaps you are assuming that the emulated code is using the graphics > > directly. Question is, does it? > > > On Jan 20, 2010 9:42 AM, "Dan Sherman" <impact...@gmail.com> wrote: > > > I'm not running any sort of beastly machine, quad-core 2.8ghz, with an > > nvidia 9800gtx, and almost all the time, emulator performance is lower than > > physical device (especially with openGL, but even with canvas). Might have > > something to do with the emulator specifically on linux, so your results may > > vary. As for uploading your APK, just drop it on rapidshare or something > > and post the link. > > > - Dan > > > On Wed, Jan 20, 2010 at 11:37 AM, Kevin Duffey <andjar...@gmail.com> wrote: > > > > After I wrote you,... > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to android-developers@googlegroups.com > > To unsubscribe from this group, send email to > > android-developers+unsubscr...@googlegroups.com<android-developers%2bunsubscr...@googlegroups.com> > > For more options, visit this group > > athttp://groups.google.com/group/android-developers?hl=en > >
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