Mark some bodies to react on touch.

[josemarin]

Hi.

I have to detect if some body (sensor, may be invisible) was touched by another.
I must identify who touched the sensor body, to it can react to the right body (exploding, pushing, ec).

Using ghosts in this case could cause too much processing?

Thanks.

Jose

[josemarin]

Well, I only need to know if the player touches some objects, so, in this case, I think that the best option is to have a ghost object attached to the player body.

[winspear]

Just use the void pointer available for each body using setUserPointer and getUserPointer. Since it is a a void pointer you can tag the body with anything.

[dphil]

This thread: http://bulletphysics.org/Bullet/phpBB3/ ... f=9&t=6897 might help.