Native Development

[pigling]

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;
}

CCScene* HelloWorld::scene()
{
    // 'scene' is an autorelease object
    CCScene *scene = CCScene::create();
    
    // 'layer' is an autorelease object
    HelloWorld *layer = HelloWorld::create();

    // add layer as a child to scene
    scene->addChild(layer);

    // return the scene
    return scene;
}

// on "init" you need to initialize your instance
bool HelloWorld::init()
{
    //////////////////////////////
    // 1. super init first
    if ( !CCLayer::init() )
    {
        return false;
    }
    
    CCSize visibleSize = CCDirector::sharedDirector()->getVisibleSize();
    CCPoint origin = CCDirector::sharedDirector()->getVisibleOrigin();

    /////////////////////////////
    // 2. add a menu item with "X" image, which is clicked to quit the program
    //    you may modify it.

    // add a "close" icon to exit the progress. it's an autorelease object
    CCMenuItemImage *pCloseItem = CCMenuItemImage::create(
                                        "CloseNormal.png",
                                        "CloseSelected.png",
                                        this,
                                        menu_selector(HelloWorld::menuCloseCallback));
    
    if (CCApplication::sharedApplication()->getTargetPlatform() == kTargetIphone)
    {
        pCloseItem->setPosition(ccp(visibleSize.width - 20 + origin.x, 20 + origin.y));
    }
    else 
    {
        pCloseItem->setPosition(ccp(visibleSize.width - 40 + origin.x, 40 + origin.y));
    }

    // create menu, it's an autorelease object
    CCMenu* pMenu = CCMenu::create(pCloseItem, NULL);
    pMenu->setPosition(CCPointZero);
    this->addChild(pMenu, 1);

    /////////////////////////////
    // 3. add your codes below...

    // add a label shows "Hello World"
    // create and initialize a label
    CCLabelTTF* pLabel = CCLabelTTF::create("Hello World", "Arial", 24);

    // position the label on the center of the screen
    pLabel->setPosition(ccp(visibleSize.width/2 + origin.x, visibleSize.height - 50 + origin.y));

    // add the label as a child to this layer
    this->addChild(pLabel, 1);

    // add "HelloWorld" splash screen"
    CCSprite* pSprite = CCSprite::create("HelloWorld.png");

    // position the sprite on the center of the screen
    pSprite->setPosition(ccp(visibleSize.width/2 + origin.x, visibleSize.height/2 + origin.y));

    // add the sprite as a child to this layer
    this->addChild(pSprite, 0);

    return true;
}

void HelloWorld::menuCloseCallback(CCObject* pSender)
{
    CCDirector::sharedDirector()->end();

#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
    exit(0);
#endif
}

 Of course I have add the including and library path in C/C++ settings.

But there are errors:

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

 Search through Google and see other codes but can't find a reason for my problem. Anyone also faces the same issue? Thanks.

regards,

pigling

[pigling]

If I temp create a pointer to b2World in ::init() like this:

b2World* test = new b2World();
test->setAllowSleeping();

 it will not promt error this new code.