Comments on: Understanding Box2D applicable forces

By: jianhualee

jianhualee — Sun, 30 Jan 2011 09:53:04 +0000

if you see the sourse code ,you will find the difference of the two methord.

By: Rirara

Rirara — Tue, 18 Jan 2011 21:40:24 +0000

Great post, thanks. I’m trying to make a game and this is very useful. Thanks!

By: Project: Volvo S60 Pinball game – Things I learnt « Tahir Ahmed's thoughts

Tue, 12 Oct 2010 17:47:18 +0000

[...] forces I had applied on this game on various spots, from handles, to spring, from tunnel to roads, this entry helped me understand better the available forces in [...]

By: Shannon

Shannon — Sat, 17 Jul 2010 13:58:16 +0000

Because you clear the forces right after you apply them ApplyForces behaves like ApplyImpulse I think. Anyway I tried using the ClearForces() method and apparrently the method doesn’t exist. Thanks anyway I ended up just setting the LinearVelocity of my object to (0.0, 0.0) instead.

By: connor

connor — Fri, 18 Jun 2010 08:25:37 +0000

they never settle because there is nothing to stop them since you made the gravity 0…

By: darks

darks — Wed, 05 May 2010 14:52:54 +0000

Hi, i am trying to use those forces, in a world with 0 gravity, and my objects are never settle no meter what, is there a easy solution for this?

By: Box2D Flash game creation tutorial – part 1 : Emanuele Feronato - italian geek and PROgrammer

Fri, 19 Feb 2010 00:16:43 +0000

[...] am using the basics of Understanding Box2D applicable forces and Box2D tutorial for the absolute beginners – revamped, which I recommend you to [...]

By: rishabh

rishabh — Wed, 17 Feb 2010 05:05:03 +0000

force and impulse has a big difference

force is applied over a period of time

impulse is applied at once
so if you apply a for of (0,-15) with applyForce
and do the same with apply impulse

there is a noticeable difference

By: Sergey (with hello from Russia!)

Sergey (with hello from Russia!) — Tue, 16 Feb 2010 20:42:23 +0000

Emanuel, please write how to create a figure of 1/4 parts of a circle or other difficult geometrical form.

By: Guest

Guest — Tue, 16 Feb 2010 17:22:54 +0000

the difference between impulse and force is the concept, i think… the impulse is also a force, but applied during a specified period of time… in this case, both are applied in “a click”, (very short time)