Real-Time Physics Simulation Forum

CcdPhysicsEnvironment Callback Triggers

2006-09-19T08:26:23+00:00

Thanks!

It works but I also have to include addSensor() to call requestCollisionCallback()

Statistics: Posted by Sheikh Dawood — Tue Sep 19, 2006 8:26 am

CcdPhysicsEnvironment Callback Triggers

2006-09-19T07:29:53+00:00

You can register your callback function using this interface:

Code:

void CcdPhysicsEnvironment::addTouchCallback(int response_class, PHY_ResponseCallback callback, void *user)

Then for each object that you requested a collision callback, this callback function will be called.

Code:

void CcdPhysicsEnvironment::requestCollisionCallback(PHY_IPhysicsController* ctrl)

For example:

Code:

 static bool newCollisionResponse(void *client_data, void *object1, void *object2, const PHY_CollData *coll_data){//process the collision    PHY_IPhysicsController* obj1 = static_cast(object1);    PHY_IPhysicsController* obj2 = static_cast(object2);//you can also cast to a CcdPhysicsController if necessary//...//coll_data is 0 at the moment, this is reserved for future usereturn false;}

Code:

MyClass* client_data =0;//optionally this 'client_data' can be some class. Then, in the callback you can jump from a static function into that class, to keep things object oriented.//register this callback physEnv->addTouchCallback(PHY_OBJECT_RESPONSE, newCollisionResponse, client_data);

It's probably best to add a Demo that shows the usage, and add this to the documentation/user manual.
Thanks,
Erwin

Statistics: Posted by Erwin Coumans — Tue Sep 19, 2006 7:29 am

CcdPhysicsEnvironment Callback Triggers

2006-09-19T07:05:02+00:00

Hi,

I'm a junior programmer and trying to use the callback trigger feature in the CcdPhysicsDemo app. After adding a physics object into the m_triggerControllers by using the requestCollisionCallback function, how do I catch a callback collision event in the CcdPhysicsDemo class?

I'm trying to capture this collision event to create my own collision response of one of the objects.

Statistics: Posted by Sheikh Dawood — Tue Sep 19, 2006 7:05 am