Wonderfall game for iPhone and iPad uses Bullet

faatal · **Joined:** Tue Aug 17, 2010 1:09 am **Posts:** 2

Our new word game Wonderfall uses Bullet for rigid body physics of the letters against each other and the arena walls.

A free lite version can be found here:
http://itunes.apple.com/us/app/wonderfall-lite/id386438067?mt=8

The collision results are excellent. The main problem we had was performance. The game runs at 60 FPS, but with approximately 25 letters on screen in an active state on a iPhone 3G or iPod 2nd gen it would drop to 30 FPS, since Bullet was taking about 8ms (half the frame time!) to handle the simulation. That was with all the tweaks I could find on these forums. On iPhone 4 or iPod 3rd gen, with their faster CPUs and graphics, it stays at 60 FPS in the worst case. Not a big deal in our case, since the bog happens when you are almost out of space and it just gives the player a little extra time to think.

Good job Bullet team! We are using it in our next project(s) and look forward to any new versions.

faatal
tak7.com

ltm0807 · **Joined:** Wed Oct 06, 2010 2:41 am **Posts:** 1

wow Thank you for your link!
I have downloaded this game and set up in my Iphone.
I really like it !!!

Cinnamond · **Joined:** Wed Apr 20, 2011 2:25 am **Posts:** 1

faatal wrote:

Our new word game Wonderfall uses Bullet for rigid body ipad 2 case leatherphysics of the letters against each other and the arena walls.

A free lite version can be found here:
iPad2case

The collision results are excellent. The main problem we had was performance. The game runs at 60 FPS, but with approximately 25 letters on screen in an active state on a iPhone 3G or iPod 2nd gen it would drop to 30 FPS, since Bullet was taking about 8ms (half the frame time!) to handle the simulation. That was iPad2 caseswith all the tweaks I could find on these forums. On iPhone 4 or iPod 3rd gen, with their faster CPUs and graphics, it stays at 60 FPS in the worst case. Not a big deal in our case, since the bog happens when you are almost out of space and it just gives the player a little extra time to think.

Good job Bullet team! We are using it in our next project(s) and look forward to any new versions.

faatal
tak7.com

Thank you for your link!
I have downloaded this game and set up in my Iphone.

Abbie52 · **Joined:** Fri Jun 03, 2011 8:50 am **Posts:** 1

Cinnamond wrote:

faatal wrote:

Our new word game Wonderfall uses Bullet for rigid body ipad 2 cases physics of the letters against each other and the arena walls.

A free lite version can be found here:
iPad2case

The collision results are excellent. The main problem we had was performance. The game runs at 60 FPS, but with approximately 25 letters on screen in an active state on a iPhone 3G or iPod 2nd gen it would drop to 30 FPS, since Bullet was taking about 8ms (half the frame time!) to handle the simulation. That was iPad2 cases with all the tweaks I could find on these forums. On iPhone 4 or iPod 3rd gen, with their faster CPUs and graphics, it stays at 60 FPS in the worst case. Not a big deal in our case, since the bog happens when you are almost out of space and it just gives the player a little extra time to think.

Good job Bullet team! We are using it in our next project(s) and look forward to any new versions.

faatal
tak7.com

Thank you for your link!
I have downloaded this game and set up in my Iphone.

I also played this games and I enjoyed it. It was really interesting.

Merengues · **Joined:** Mon Aug 22, 2011 3:24 pm **Posts:** 1

nice game)) i've been playing it for the last couple of days :mrgreen:

might be a good addition to ipad app development, they should think about something like that

shomy2k11 · **Joined:** Thu Sep 08, 2011 1:59 am **Posts:** 23

Hi,
great stuff!! But listen i need some help with my game. I cannot seem to include "btSoftBody.h" without getting "error: expected identifier before numeric constant ...line 94"

Any suggestions

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Wonderfall game for iPhone and iPad uses Bullet

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