[kadet.89]

In the source code, I see the function:

physconstraint.cpp

PHP Code:

IPhysicsConstraint *CreateConstraint( IPhysicsConstraintGroup *pGroup, const hl_constraint_info_t &info )
{
    ...
    return physenv->CreateHingeConstraint( info.pObjects[0], info.pObjects[1], pGroup, m_hinge );
} 


But I do not see it in IDA. And I also can not find its implementation in sdk. However, it exists and works. Is there a way to know the implementation of this function and how can I hook it?

vphysics_interface.h

PHP Code:

abstract_class IPhysicsEnvironment
{
public:
    ...
    virtual IPhysicsConstraint    *CreateHingeConstraint( IPhysicsObject *pReferenceObject, IPhysicsObject *pAttachedObject, IPhysicsConstraintGroup *pGroup, const constraint_hingeparams_t &hinge ) = 0;
    ...
} 


[donrevan]

I guess you're searching in the wrong place(most-likely server/engine binary). Take a look into the vphysics.dll/so

[kadet.89]

I use Total commander for sdk directory autoscaning. So I'm sure that it does not exist in the sdk. I see a similar thing in IDA. Where there should be a call to this function, I only see weird code. And the function scanner does not return positive results.

[donrevan]

I just had some old csgo *.so's on hand so I took a quick look at csgo-ds/bin/vphysics.so:

CPhysicsEnvironment::CreateLimitedHingeConstraint(IPhysicsObject *, IPhysicsObject *, IPhysicsConstraintGroup *, constraint_limitedhingeparams_t  const&)

It's right in there.

VTable offset for it is 79. As I said I got this from a rather "old" csgo binary but I highly doubt the offset for it has changed.