Float as in water floating?

Just assign another physics body to it to change the shape.

For dragging something like this would be a great starting point.

http://www.cocos2d-x.org/wiki/User_Tutorial-Accurate_Hit_Testing

I was thinking as floating in the air. Such as changing Y axis by 2 every second

You could run a move action every 2 second thats moves it up and down.

Ok so ive applied force to the object and that works just fine. Now im having an issue with importing a Physics Body from the editor. Using the tutorial,

https://www.youtube.com/watch?v=NH95JTCCQvo

I am getting undefined references from MyBodyParser::bodyFormJson, MyBodyParser::getInstance() twice and MyBodyParser::parseJsonFile

    Node *sprite = rootNode->getChildByTag( 15 );

    MyBodyParser::getInstance()->parseJsonFile( "sprite.json" );

    auto spriteBody = MyBodyParser::getInstance()->bodyFormJson(sprite, "sprite", PhysicsMaterial(1, 1, 0));
    if ( spriteBody != nullptr )
    {
        spriteBody->setDynamic( true );
        sprite->setPhysicsBody( spriteBody );
    }
    
    spriteBody->applyImpulse(Vect(500, 50));
    this->addChild( sprite );

Could you post a screenshot of the error.

Have you downloaded and included MyBodyParser

Yeah i got it from the video (github) and just placed it into the classes folder

Have you included the MyBodyParser header?

Yes, both files, MyBodyParser.cpp and MyBodyParser.h

But have you included it in code.

I put #include “MyBodyParser.h” in if thats what you mean?

Yh, have you tried downloading the project from git hub and seeing if that works 

Same issue, also it appears that some of the code from the video differs from that from Github. There is also a json folder which I have also tried importing with no luck :(

It Works!

Strange, in the past ive added MyBodyParser.cpp to Android.mk but the problem persisted. I have just realized that that was due to the fact that it wasn’t saving(inside of the physics body editor) as a json but instead as some random file. I was able to save it as a json now and re-added it to Android.mk and it worked!

For some reason the physics body is larger than the image and setScale doesnt work with physics body. What is the proper way of scaling the physics body to the smaller size of the sprite?

You can't scale the physics body but you need to do it in Physics Body Editor 

When in Physics Body Editor the physics body is the same size as the sprite used. Once imported into cocos2dx the physics body is 3 times larger than the sprite. I made sure to use the same sprite.

Have you scaled the sprite at all?

Yeah so how do I scale the physics body within the physics body editor?

You don’t scale it but create it to fit.

Send us a screenshot of Physics Body Editor with the body created around your sprite.

I got it! I just kept resizing it in Photoshop, bringing it to the physics editor and exporting until it was perfect.

Now how do you make them draggable?

Check this tutorial out for detecting touch, then on move move your sprite accordingly

http://www.cocos2d-x.org/wiki/User_Tutorial-Accurate_Hit_Testing

Thanks!