how to simply integrate Box2D to HelloWorld sample in Cocos2d-x

cocos2d-x C++
#1

Hi,

I am trying to use Cocos2d-x 2.02 for BB10 development. I have built and deployed HelloWorld sample to Alpha device. Then I try to add Box2D componet to the code but it fails:
HelloWorld.h

#ifndef __HELLOWORLD_SCENE_H__
#define __HELLOWORLD_SCENE_H__

#include "cocos2d.h"
#include "Box2D/Box2D.h"

class HelloWorld : public cocos2d::CCLayer
{
public:
    HelloWorld();
    ~HelloWorld();
    // Here's a difference. Method 'init' in cocos2d-x returns bool, instead of returning 'id' in cocos2d-iphone
    virtual bool init();  

    // there's no 'id' in cpp, so we recommand to return the exactly class pointer
    static cocos2d::CCScene* scene();

    // a selector callback
    void menuCloseCallback(CCObject* pSender);

    // implement the "static node()" method manually
    CREATE_FUNC(HelloWorld);

private:
    b2World* world;
};

#endif // __HELLOWORLD_SCENE_H__

HelloWorld.cpp

#include "HelloWorldScene.h"

USING_NS_CC;

HelloWorld::HelloWorld()
{
    b2Vec2 gravity;
    gravity.Set(0.0f, -10.0f);

    world = new b2World(gravity);

    world->setAllowSleeping(true);

    world->setContinuousPhysics(true);
}

HelloWorld::~HelloWorld()
{
    if (world)
        delete world;
}
...

Of course I have added the including and library path in C/C*+ settings. But there are errors when building:
<pre>
Description Resource Path Location Type
‘class b2World’ has no member named ‘setAllowSleeping’ HelloWorldScene.cpp /HelloCpp/Classes line 12 C/C*+ Problem
‘class b2World’ has no member named ‘setContinuousPhysics’ HelloWorldScene.cpp /HelloCpp/Classes line 14 C/C++ Problem

Anyone can help? Thanks.

regards,
pigling

#2

Hi, you should use uppercase for these two funcitons.
setAllowSleeping —> SetAllowSleeping
setContinuousPhysics —> SetContinuousPhysics

#3

Thanks. Problem solved.