Comments on: A smart way to manage sleeping objects with Box2D http://www.emanueleferonato.com/2009/02/18/a-smart-way-to-manage-sleeping-objects-with-box2d/ italian geek and PROgrammer Sat, 11 Feb 2012 05:27:38 +0000 hourly 1 http://wordpress.org/?v= By: Pausing a Box2D simulation : Emanuele Feronato - italian geek and PROgrammer http://www.emanueleferonato.com/2009/02/18/a-smart-way-to-manage-sleeping-objects-with-box2d/#comment-535700 Pausing a Box2D simulation : Emanuele Feronato - italian geek and PROgrammer Wed, 06 Jan 2010 18:47:02 +0000 http://www.emanueleferonato.com/?p=976#comment-535700 [...] playing with timestep is the key to success. In this script, copied/pasted from A smart way to manage sleeping objects with Box2D I am going to stop the simulation with a mouse click, and let it play again with another mouse [...] [...] playing with timestep is the key to success. In this script, copied/pasted from A smart way to manage sleeping objects with Box2D I am going to stop the simulation with a mouse click, and let it play again with another mouse [...]

]]> By: rolf vreijdenberger http://www.emanueleferonato.com/2009/02/18/a-smart-way-to-manage-sleeping-objects-with-box2d/#comment-416605 rolf vreijdenberger Fri, 27 Mar 2009 20:09:10 +0000 http://www.emanueleferonato.com/?p=976#comment-416605 cool. keep in mind though, that you are looping trough ALL bodies, while all you need are the rendered bodies. In this example it's not an issue, but when only rendering a small subset of your physics world, this is overly expensive. try keeping a seperate list for the rendered bodies outside of the engine and looping over them. The 'actor' implementation referenced in the box2d forums is a good way to do this: keep a list of actors, which contain a reference to a displayobject that is rendered and the b2body it's referencing. cool. keep in mind though, that you are looping trough ALL bodies, while all you need are the rendered bodies. In this example it’s not an issue, but when only rendering a small subset of your physics world, this is overly expensive.
try keeping a seperate list for the rendered bodies outside of the engine and looping over them.

The ‘actor’ implementation referenced in the box2d forums is a good way to do this:
keep a list of actors, which contain a reference to a displayobject that is rendered and the b2body it’s referencing.

]]> By: Shival http://www.emanueleferonato.com/2009/02/18/a-smart-way-to-manage-sleeping-objects-with-box2d/#comment-392297 Shival Wed, 18 Feb 2009 15:41:03 +0000 http://www.emanueleferonato.com/?p=976#comment-392297 Cool. Seriously cool. Can you make something that can make the faces appear upright ignoring their rotation. Cool.
Seriously cool. Can you make something that can make the faces appear upright ignoring their rotation.

]]> By: dVyper http://www.emanueleferonato.com/2009/02/18/a-smart-way-to-manage-sleeping-objects-with-box2d/#comment-392274 dVyper Wed, 18 Feb 2009 15:06:32 +0000 http://www.emanueleferonato.com/?p=976#comment-392274 Brilliant example. I was watching it for ages... Brilliant example. I was watching it for ages…

]]> By: Uchiha http://www.emanueleferonato.com/2009/02/18/a-smart-way-to-manage-sleeping-objects-with-box2d/#comment-392271 Uchiha Wed, 18 Feb 2009 15:05:39 +0000 http://www.emanueleferonato.com/?p=976#comment-392271 Thanks! I was looking for this. Thanks!
I was looking for this.

]]> By: Gawd http://www.emanueleferonato.com/2009/02/18/a-smart-way-to-manage-sleeping-objects-with-box2d/#comment-392155 Gawd Wed, 18 Feb 2009 10:38:05 +0000 http://www.emanueleferonato.com/?p=976#comment-392155 Nice. Nice.

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