error with setCustomForceAndTorqueCallback

Zep

21-03-2009 19:26:00

Hi,

I have a class Bumping Ball that inherit from a class GameEntity, which have the body of my object as a data member.

roughly, i have this :

class GameEntity

{



	public:

		// some methods



	protected:

		Ogre::Mesh*			mMesh;

		Ogre::Entity*			mEntity;

		Ogre::SceneManager*		mSceneMgr;

		Ogre::SceneNode*		mSceneNode;



		OgreNewt::Body*		mBody;

		OgreNewt::World*		mWorld;		

		OgreNewt::MaterialID*	            mMaterial;

};

and here is the (interessant) part of code inside my BumpingBall class :

void BumpingBall::createBBall(Ogre::String name, const Ogre::Real mass = 10, const Ogre::Real radius = 2)

{

	// creation of the SceneNode, Entity, Body and other stuff



	mBody->setCustomForceAndTorqueCallback(&BumpingBall::ApplyTorqueCallback);

}

here is the callback, almost empty for now

void BumpingBall::ApplyTorqueCallback(OgreNewt::Body* me)

{

	me->addTorque(mSpeed);

}

And whien i try to compile this stuff, Visual Studio tells me:

error C2064: term does not evaluate to a function taking 1 arguments
on the file function_template.hpp, line 136, which is this one

      struct BOOST_FUNCTION_VOID_FUNCTION_OBJ_INVOKER

      {

        static BOOST_FUNCTION_VOID_RETURN_TYPE

        invoke(any_pointer function_obj_ptr BOOST_FUNCTION_COMMA

               BOOST_FUNCTION_PARMS)



        {

          FunctionObj* f = (FunctionObj*)(function_obj_ptr.obj_ptr);

          BOOST_FUNCTION_RETURN((*f)(BOOST_FUNCTION_ARGS));  /// < line 136 \\\

        }

      };

Any help will be very welcomed !

Thanks

Zero23

21-03-2009 19:52:14

Hi

Try

mBody->setCustomForceAndTorqueCallback(&BumpingBall::ApplyTorqueCallback, this);

Zero

Zep

21-03-2009 20:09:15

Already tried :

error C2660: 'OgreNewt::Body::setCustomForceAndTorqueCallback' : function does not take 2 arguments :/

Zero23

21-03-2009 21:38:19

Ohh sry, a mistake from me^^ I dont looked at the source

mBody->setCustomForceAndTorqueCallback<BumpingBall>(&BumpingBall::ApplyTorqueCallback, this);

This should work

Zero

Zep

22-03-2009 00:17:34

It was so easy...shame on me..

well, many thanks Zero ^^

razi

27-05-2009 22:19:49

Hi, i have probably similiar problem that i cannot solve. Im just trying to see what works in new ogrenewt, and in first tutorial i changed standardCallback to custom

body->setCustomForceAndTorqueCallback<OgreNewtonFrameListener>(&OgreNewtonFrameListener::move_callback, this);

void move_callback(OgreNewt::Body* me)

{

	me->addForce(Vector3(0,-10,0));

}

but i cant compile,it gives me this error

------ Build started: Project: pro, Configuration: Release Win32 ------

1>Compiling...

1>OgreNewtonApplication.cpp

1>E:\boost_1_38_0\boost/function/function_template.hpp(224) : error C2064: term does not evaluate to a function taking 4 arguments

1>        class does not define an 'operator()' or a user defined conversion operator to a pointer-to-function or reference-to-function that takes appropriate number of arguments

1>        E:\boost_1_38_0\boost/function/function_template.hpp(221) : while compiling class template member function 'void boost::detail::function::function_void_mem_invoker4<MemberPtr,R,T0,T1,T2,T3>::invoke(boost::detail::function::function_buffer &,T0,T1,T2,T3)'

1>        with

1>        [

1>            MemberPtr=void (__thiscall OgreNewtonFrameListener::* )(OgreNewt::Body *),

1>            R=void,

1>            T0=OgreNewtonFrameListener *,

1>            T1=OgreNewt::Body *,

1>            T2=float,

1>            T3=int

1>        ]

1>        E:\boost_1_38_0\boost/function/function_template.hpp(904) : see reference to class template instantiation 'boost::detail::function::function_void_mem_invoker4<MemberPtr,R,T0,T1,T2,T3>' being compiled

1>        with

1>        [

1>            MemberPtr=void (__thiscall OgreNewtonFrameListener::* )(OgreNewt::Body *),

1>            R=void,

1>            T0=OgreNewtonFrameListener *,

1>            T1=OgreNewt::Body *,

1>            T2=float,

1>            T3=int

1>        ]

1>        E:\boost_1_38_0\boost/function/function_template.hpp(720) : see reference to function template instantiation 'void boost::function4<R,T0,T1,T2,T3>::assign_to<Functor>(Functor)' being compiled

1>        with

1>        [

1>            R=void,

1>            T0=OgreNewtonFrameListener *,

1>            T1=OgreNewt::Body *,

1>            T2=float,

1>            T3=int,

1>            Functor=void (__thiscall OgreNewtonFrameListener::* )(OgreNewt::Body *)

1>        ]

1>        E:\boost_1_38_0\boost/function/function_template.hpp(1041) : see reference to function template instantiation 'boost::function4<R,T0,T1,T2,T3>::function4<Functor>(Functor,int)' being compiled

1>        with

1>        [

1>            R=void,

1>            T0=OgreNewtonFrameListener *,

1>            T1=OgreNewt::Body *,

1>            T2=float,

1>            T3=int,

1>            Functor=void (__thiscall OgreNewtonFrameListener::* )(OgreNewt::Body *)

1>        ]

1>        e:\ogrenewt\demos\demo01_thebasics\OgreNewtonFrameListener.h(156) : see reference to function template instantiation 'boost::function<Signature>::function<void(__thiscall OgreNewtonFrameListener::* )(OgreNewt::Body *)>(Functor,int)' being compiled

1>        with

1>        [

1>            Signature=void (OgreNewtonFrameListener *,OgreNewt::Body *,float,int),

1>            Functor=void (__thiscall OgreNewtonFrameListener::* )(OgreNewt::Body *)

1>        ]

1>Build log was saved at "file://e:\pro\obj\Release\BuildLog.htm"

1>pro - 1 error(s), 0 warning(s)

========== Build: 0 succeeded, 1 failed, 1 up-to-date, 0 skipped ==========

Do you have any idea what is the problem? Thank you.

Zero23

27-05-2009 22:45:45

Your function move_callback, miss some parameters



void move_callback( Body* me, float timeStep, int threadIndex )

{}

Try this!

Zero

razi

28-05-2009 08:24:07

Hmm, I tried the same thing yesterday and it didnt work, but as you suggested the same, i tried to do it today too with few modifications to the rest of code and it works

. Thank you.
Anyway, do you have any idea why is it that I need float and int parameters and Zep above dont?

prchakal

23-11-2009 21:37:32

I have the same problem:

_body->setCustomForceAndTorqueCallback<EnginePlayer>(&EnginePlayer::forceCallback, this);

and:

void EnginePlayer::forceCallback(OgreNewt::Body *body, float timeStep, int threadIndex) {
/*
//obtém o player do callback
EnginePlayer* player = Ogre::any_cast<EnginePlayer*>(body->getUserData());
*/

//obtém massa e inércia
Ogre::Real mass;
Ogre::Vector3 inertia;
body->getMassMatrix(mass, inertia);

//adiciona gravidade
Ogre::Vector3 gravity = Ogre::Vector3(0, -9.8,0) * mass;
body->addForce(gravity);
}

the error:

1>------ Build started: Project: PR3DEngine, Configuration: Release Win32 ------

1>Compiling...

1>EnginePlayer.cpp

1>D:\Downloads\Cpp\LIB\boost\boost/function/function_template.hpp(112) : error C2197: 'void (__cdecl *)(OgreNewt::Body *,float,int)' : too many arguments for call

1>        D:\Downloads\Cpp\LIB\boost\boost/function/function_template.hpp(110) : while compiling class template member function 'void boost::detail::function::void_function_invoker4<FunctionPtr,R,T0,T1,T2,T3>::invoke(boost::detail::function::function_buffer &,T0,T1,T2,T3)'

1>        with

1>        [

1>            FunctionPtr=void (__cdecl *)(OgreNewt::Body *,float,int),

1>            R=void,

1>            T0=EnginePlayer *,

1>            T1=OgreNewt::Body *,

1>            T2=float,

1>            T3=int

1>        ]

1>        D:\Downloads\Cpp\LIB\boost\boost/function/function_template.hpp(913) : see reference to class template instantiation 'boost::detail::function::void_function_invoker4<FunctionPtr,R,T0,T1,T2,T3>' being compiled

1>        with

1>        [

1>            FunctionPtr=void (__cdecl *)(OgreNewt::Body *,float,int),

1>            R=void,

1>            T0=EnginePlayer *,

1>            T1=OgreNewt::Body *,

1>            T2=float,

1>            T3=int

1>        ]

1>        D:\Downloads\Cpp\LIB\boost\boost/function/function_template.hpp(722) : see reference to function template instantiation 'void boost::function4<R,T0,T1,T2,T3>::assign_to<void(__cdecl *)(OgreNewt::Body *,float,int)>(Functor)' being compiled

1>        with

1>        [

1>            R=void,

1>            T0=EnginePlayer *,

1>            T1=OgreNewt::Body *,

1>            T2=float,

1>            T3=int,

1>            Functor=void (__cdecl *)(OgreNewt::Body *,float,int)

1>        ]

1>        D:\Downloads\Cpp\LIB\boost\boost/function/function_template.hpp(1065) : see reference to function template instantiation 'boost::function4<R,T0,T1,T2,T3>::function4<void(__cdecl *)(OgreNewt::Body *,float,int)>(Functor,int)' being compiled

1>        with

1>        [

1>            R=void,

1>            T0=EnginePlayer *,

1>            T1=OgreNewt::Body *,

1>            T2=float,

1>            T3=int,

1>            Functor=void (__cdecl *)(OgreNewt::Body *,float,int)

1>        ]

1>        .\src\engine\EnginePlayer.cpp(127) : see reference to function template instantiation 'boost::function<Signature>::function<void(__cdecl *)(OgreNewt::Body *,float,int)>(Functor,int)' being compiled

1>        with

1>        [

1>            Signature=void (EnginePlayer *,OgreNewt::Body *,float,int),

1>            Functor=void (__cdecl *)(OgreNewt::Body *,float,int)

1>        ]

1>Build log was saved at "file://d:\PRSoluções\Softwares\PR3DEngine\PR3DEngine\Release\BuildLog.htm"

1>PR3DEngine - 1 error(s), 0 warning(s)

========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========