Comments on: The magic of compound objects with Box2D http://www.emanueleferonato.com/2008/12/12/the-magic-of-compound-objects-with-box2d/ italian geek and PROgrammer Fri, 30 Jul 2010 17:37:48 +0000 hourly 1 http://wordpress.org/?v=abc By: pbear http://www.emanueleferonato.com/2008/12/12/the-magic-of-compound-objects-with-box2d/#comment-568297 pbear Thu, 15 Apr 2010 21:15:58 +0000 http://www.emanueleferonato.com/?p=732#comment-568297 For those getting no result, you need to add a line to set the flags. It was apparently dropped from the previous version. Right before these lines: m_world.SetDebugDraw(dbgDraw); // debug draw end Add: dbgDraw.m_drawFlags = b2DebugDraw.e_shapeBit | b2DebugDraw.e_jointBit | b2DebugDraw.e_coreShapeBit | b2DebugDraw.e_aabbBit | b2DebugDraw.e_obbBit | b2DebugDraw.e_pairBit | b2DebugDraw.e_centerOfMassBit; And you should be able to see what is going on. For those getting no result, you need to add a line to set the flags. It was apparently dropped from the previous version. Right before these lines:

m_world.SetDebugDraw(dbgDraw);
// debug draw end

Add:
dbgDraw.m_drawFlags = b2DebugDraw.e_shapeBit | b2DebugDraw.e_jointBit | b2DebugDraw.e_coreShapeBit | b2DebugDraw.e_aabbBit | b2DebugDraw.e_obbBit | b2DebugDraw.e_pairBit | b2DebugDraw.e_centerOfMassBit;

And you should be able to see what is going on.

]]> By: Real world catapult prototype using Box2D : Emanuele Feronato - italian geek and PROgrammer http://www.emanueleferonato.com/2008/12/12/the-magic-of-compound-objects-with-box2d/#comment-565094 Real world catapult prototype using Box2D : Emanuele Feronato - italian geek and PROgrammer Wed, 07 Apr 2010 20:44:50 +0000 http://www.emanueleferonato.com/?p=732#comment-565094 [...] and uncommented code, but a lot of useful information about compound objects, revolute joints and [...] [...] and uncommented code, but a lot of useful information about compound objects, revolute joints and [...]

]]> By: Justin Edmond http://www.emanueleferonato.com/2008/12/12/the-magic-of-compound-objects-with-box2d/#comment-458270 Justin Edmond Sat, 06 Jun 2009 18:02:29 +0000 http://www.emanueleferonato.com/?p=732#comment-458270 I'm getting the same issue as some other people where nothing is showing up... I'm digging around the code but I can't find a reason why it should be doing this. I’m getting the same issue as some other people where nothing is showing up…

I’m digging around the code but I can’t find a reason why it should be doing this.

]]> By: Understanding custom polygons in Box2D : Emanuele Feronato http://www.emanueleferonato.com/2008/12/12/the-magic-of-compound-objects-with-box2d/#comment-357280 Understanding custom polygons in Box2D : Emanuele Feronato Fri, 19 Dec 2008 17:41:35 +0000 http://www.emanueleferonato.com/?p=732#comment-357280 [...] week I explained The magic of compound objects with Box2D, now it’s time to understanding custom [...] [...] week I explained The magic of compound objects with Box2D, now it’s time to understanding custom [...]

]]> By: samuvagyok http://www.emanueleferonato.com/2008/12/12/the-magic-of-compound-objects-with-box2d/#comment-354580 samuvagyok Mon, 15 Dec 2008 13:41:59 +0000 http://www.emanueleferonato.com/?p=732#comment-354580 Good article! Have you ever tried to use "custom" polygons? When I created one in box2d it seems it doesn't use the physics - no gravity, no collision etc. and I still can't find any helpful post in the box2d forum. Maybe I missed something that is in the setAsBox method... Would you write an article about custom shapes? Thanks, and best regards! S Good article!
Have you ever tried to use “custom” polygons?
When I created one in box2d it seems it doesn’t use the physics – no gravity, no collision etc. and I still can’t find any helpful post in the box2d forum. Maybe I missed something that is in the setAsBox method…
Would you write an article about custom shapes?
Thanks, and best regards!
S

]]> By: Pippo http://www.emanueleferonato.com/2008/12/12/the-magic-of-compound-objects-with-box2d/#comment-354018 Pippo Sun, 14 Dec 2008 18:25:40 +0000 http://www.emanueleferonato.com/?p=732#comment-354018 using debugsrite using debugsrite

]]> By: ruslan http://www.emanueleferonato.com/2008/12/12/the-magic-of-compound-objects-with-box2d/#comment-353587 ruslan Sun, 14 Dec 2008 00:18:18 +0000 http://www.emanueleferonato.com/?p=732#comment-353587 How do you visualize the shapes(boxes)?? How do you visualize the shapes(boxes)??

]]> By: Nathan http://www.emanueleferonato.com/2008/12/12/the-magic-of-compound-objects-with-box2d/#comment-353430 Nathan Sat, 13 Dec 2008 16:57:14 +0000 http://www.emanueleferonato.com/?p=732#comment-353430 I was thinking the same thing as sathoro. I've been trying to do one of those for a long time. Now I think I know how! I was thinking the same thing as sathoro. I’ve been trying to do one of those for a long time. Now I think I know how!

]]> By: anlik http://www.emanueleferonato.com/2008/12/12/the-magic-of-compound-objects-with-box2d/#comment-353009 anlik Sat, 13 Dec 2008 01:56:24 +0000 http://www.emanueleferonato.com/?p=732#comment-353009 up up up, I hope that i can see Box2D tutorial everydayO(∩_∩)O，Thanks up up up, I hope that i can see Box2D tutorial everydayO(∩_∩)O，Thanks

]]> By: sathoro http://www.emanueleferonato.com/2008/12/12/the-magic-of-compound-objects-with-box2d/#comment-352873 sathoro Fri, 12 Dec 2008 21:49:16 +0000 http://www.emanueleferonato.com/?p=732#comment-352873 Sorry I meant start the ball at the beginning and then have it go to the end. Sorry I meant start the ball at the beginning and then have it go to the end.

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