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Chipmunk Physics • View topic - show bodies and joints

show bodies and joints

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show bodies and joints

Postby nitrorazor » Sat Sep 26, 2009 9:55 am

Hello,
i am developing on the iPhone with chipmunk physics, and now i have a question: in the chipmunk examples there are always objects showen in different colors. but how can i unhide the joints, bodies and circles... i dont see them? when i draw a cpBody i can only show it on the screen by attach a image on it. in the chipmunk wiki there is no description how to do this.

regards
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Re: show bodies and joints

Postby slembcke » Sat Sep 26, 2009 11:28 am

In the Chipmunk demo code, I wrote some low level code that pulls data out of the Chipmunk shapes and joints in order to draw them. The file you are looking for is drawspace.c. I usually drop it into projects that I'm working on and hack on it a bit as a debugging tool to draw shapes and joints over the top of my game scene. It's an easy way to make sure that sprites are lining up properly.
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Re: show bodies and joints

Postby nitrorazor » Sat Sep 26, 2009 3:33 pm

Thanks, you are great!

edit: hm, currently this doesn't work with opengles and the iPhone(only for opengl) :cry:
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Re: show bodies and joints

Postby zaerl » Mon Sep 28, 2009 8:57 am

zaerl
 
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Re: show bodies and joints

Postby nitrorazor » Mon Sep 28, 2009 9:47 am

thanks, but now i use cocos2D to draw the things, this is a little bit easier :D
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Re: show bodies and joints

Postby zaerl » Mon Sep 28, 2009 9:53 am

Good for you nitro. Remember that cocos-2d doesn't use the trunk code of chipmunk.

Regards.
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