Dark Bit Factory & Gravity

PROGRAMMING => General coding questions => Topic started by: relsoft on April 17, 2013

Title: Some noobish Android questions...
Post by: relsoft on April 17, 2013

Hello, I've been learning droid game development this past week and I have some questions I cannot find answers using google. ;*(

First, I've developed my own OpenGL ES 1.x rendering layer by porting some of my old C++(also converted to LWJGL) spritebatching code after reading how to set up openGL from this site: obviam.net (http://obviam.net)

(http://www.rel.phatcode.net/Temp/android_bullets_screen.png)

DL(with source):
http://rel.phatcode.net/junk.php?id=141

The framework was slow at first (Samsung galaxy S 2.1) but  after reading this:

http://www.badlogicgames.com/wiki/index.php/Direct_Bulk_FloatBuffer.put_is_slow

I achieved full speed with 1000 bullets on screen.

I also wasted time to convert my non-interleaved Spritebatcher to an Interleaved one because when the conversion was done, I only get a 1-2 FPS increase on ~1000 entities on screen. ;*(
 
So my questions...

1) I'm updating entities from inside the onDraw() method.  Is there a better way to update logic?
2) Why does the engine cap at 55 FPS on my 1 ghz samsung and 60 FPS on my 800 mhz LG Optimus E400?  It would still report 55 FPS if even if I only draw 1 entity.
3) What is a good way to support multiple screen sizes?
4) Is there a good Android specific forum I could ask questions aside from here?
5) Can you guys test the apk included in the DL and report your phone model as well as the FPS?


Thanks a bunch!

Title: Re: Some noobish Android questions...
Post by: Canopy on April 17, 2013

2 i would assume to be related to swapbuffers and vbl behaviour for that device