Trouble pushing a box with another box, collision detection

[jeremydouglass]

@ddownn

I noticed there are a few variants of box2d, jbox2d, and pbox2d. They both seem really old, are they still working?

If you go into Contributions Manager in PDE you will see the link to the recommended Box2D for Processing 3.x – Box2D For Processing 0.4.

@ddownn

also want to do it by a method that can be expanded so that the pushed box can push any reasonable number of other boxes in a row.

To me, this is the part that shouts “I want a physics engine”. A solver will handle these cascading interactions like pushing a row for you – even if you really want to dig into trying to implement that yourself, studying the Box2D source is still once good starting point.