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box2d playground

box2d physics
Credits: box2d.org and mr. vux for wrapping and help patches.


I would like to share with you my ongoing v4 learning project.
It turned out to grow into something like a little box2d sandbox.
It is not that sophisticated and many box2d features are
still missing, so I prefere to call it playground.

  • Drawing basic shapes in three flavours (Box, Circle, Triangle).
  • Dynamic/static shapes. Density, friction, restitution settings.
  • Mouse interaction with objects.
  • Chaining objects by distance or revolute joint.
  • Deleting objects.
  • Saving/Loading scenes.

There are still many places to improve and change,
but in the end I am pretty happy how it works for now
and hope you like it too and have some fun with it.


Ver. 1.1

  • Subpatched all the mess. Should make more sense and be better readable now.
  • Triangles are now made with woei´s mesh join, so each is a subset.
  • Many small changes and optimizations in several places.
  • Added evaluation triggers for some parts that do not need to run all the time.
  • Added revolute joints to create hinge like connections.
  • Runs well in 45beta27.2 and AddOnPack

Ver 1.0

  • Initial release.
  • Runs well in 45beta25.1 and AddOnPack


box2d playground_v1.1.zip - 18.06.12 [21:16 UTC] by tgd | 1139 downloads
notes: Ver. 1.1

other/older revisions

box2d playground.zip - 06.08.11 [18:13 UTC] by tgd | 864 downloads
notes: Ver. 1.0

u7angel 08/08/2011 - 11:21

its fun, tomek :)

sunep 08/08/2011 - 11:45

yes, really nice work!

tgd 08/08/2011 - 12:04

glad you like, herr angel.
learned a bunch of stuff again.. cheers
thanks for the kind words sunep

circuitb 08/08/2011 - 12:52

nice box2d demo bravo!

sapo 08/08/2011 - 14:24

great work and idea! not too far to a complete 2d phisics sandbox like phun (now algodoo). after triing it i was wondering about making the text example look like fluid.. some sort of 2d metaballs could do the job maybe? anyhow, nice stuff!

tgd 10/08/2011 - 11:25

thanks guys. I have tried to make fluid but run into few issues. Biggest one seems performance, at least on my PC is not so good. I have tried MetaballsSpreaded tiki-download_file.php?fileId=1609 with about 400 circles. With that much elements it begins to look kind of fluidish, but the framrate goes down quickly. It is not easy to find right settings of the Metaballs to look right too. Second issue is scaling the Metaballs to different aspect ratios of the screen. Have to dig it bit more. The circles do best when having zero friction and about 0,5 restitution. will post the fluidtest next days. seems doable somehow. cheers

philip 11/08/2011 - 08:57

looks great.

p.s added only one comment, one like. So nobody entertain suspicion ;)

bo27 20/08/2011 - 13:30

@tgd if have time please contact me. thanks

fibo 29/10/2011 - 20:29

Really nice box2d demo !!

robe 17/11/2011 - 19:20

This one ROCKS!

dannielmach 17/11/2011 - 20:13


tgd 18/06/2012 - 20:53

Updated to 1.1 :)

bo27 18/06/2012 - 23:26

very nice update!

anonymous user login


~16h ago

~20h ago

~22h ago

dschordsch: someone knows a good tutorial for vvvv-3d beginners?

~22h ago

elektromeier: yes just realised theres two results or even an unclear result in the situation you described. thanks elliot. have it working

~24h ago

elliotwoods: @fleg - hmm... sorry

~24h ago

elliotwoods: @dominikKoller @elektromeier - if all your samples are in 1 half of the circle then min,-,mod,mean,+

~24h ago

elliotwoods: Forgot to post this earlier : Festival opening tomorrow in Korea. Incredible line-up and space. http://actcenter.kr/ #actfestival

~24h ago

fleg: @elliotwoods thanks. got the new edsk, overwritten files in \Dependencies\EDSDK\x86 - device still not found

~24h ago

fleg: @elliotwoods thanks. got the new edsk, overwritten files in packs\Image\nodes\plugins\Dependencies\EDSDK\x86 - device still not found