Question

I want to create a game where you shoot a rocket into the ground (Sand) and it blows, and moves the sand to the sides…
Is it possible in Box2D? breakable little objects?
It’s almost pixel perfect collusion detection.

Thanks!

Answer 1

Yes it’s possible, but beware your performance is going to be pretty weak. See the following articles (sorry guys, I normally like to paste in code instead of just link but there is are too much of it).

http://www.emanueleferonato.com/2012/01/17/create-real-explosions-with-box2d-adding-textures/

http://www.emanueleferonato.com/2012/01/05/create-real-explosions-with-box2d-exploding-objects-and-setting-the-center-of-explosion-with-mouse-click/

http://www.emanueleferonato.com/2011/12/08/create-real-explosions-with-box2d/

As far as dirt flying out when the ground breaks, the dirt doesn’t have to be physical, you can just fake that with some particle effects. (Lots of tutorials on those things here)