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General about Contacts

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Unknown

Post subject: General about Contacts

Posted: Fri Aug 22, 2008 10:45 am

Joined: Fri Jul 18, 2008 7:23 am
Posts: 47

Hi guys,

after reading the doc about contacts, i didnt get smarter =)

Im using C++ for the programm and want to detect the collision between two bodies/shapes.
This is my idea/pseudo-code

Code:

if (ContactExist(body1,body2)
{
// do sth.
}

Thanks for help

unknown

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Unknown

Post subject: Re: General about Contacts

Posted: Sun Aug 24, 2008 6:18 am

Joined: Fri Jul 18, 2008 7:23 am
Posts: 47

Can nobody help me ?

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Unknown

Post subject: Re: General about Contacts

Posted: Sun Aug 24, 2008 10:19 am

Joined: Fri Jul 18, 2008 7:23 am
Posts: 47

hmm , if its to difficult to explain how it works, can someone say where it is explain well or explain me sth like this

Code:

if contact(body)

So if the body contact with sth.

Greetz unknown

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the2bears

Post subject: Re: General about Contacts

Posted: Sun Aug 24, 2008 12:45 pm

Joined: Tue Feb 12, 2008 4:54 pm
Posts: 130

There are lots of topics here on this with lots of examples. Implement the ContactListener interface, copy contacts there for handling after the time step. That way you're handling "now known" contacts rather than polling the system with "if (ContactExist(body1,body2)" type code.

Bill

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neonnds

Post subject: Re: General about Contacts

Posted: Sun Aug 24, 2008 9:15 pm

Joined: Sun Jul 20, 2008 6:48 am
Posts: 25

See: b2ContactListener

See testbed example: test_ContactCallbackTest

b2ContactListener is implemented in test_main

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Unknown

Post subject: Re: General about Contacts

Posted: Mon Aug 25, 2008 6:33 am

Joined: Fri Jul 18, 2008 7:23 am
Posts: 47

neonnds wrote:

See: b2ContactListener

See testbed example: test_ContactCallbackTest

b2ContactListener is implemented in test_main

Looked at that

but not really understand it...

Someone have some example (codes) for me ?

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