Movement of Box2d Body in cocos2d-x

Question

I need to move the box2d body according to position received form game center server.

After receiving position I just update the body position using: -

   Carbody->SetTransform(b2Vec2(serverposition.x,serverposition.y),0);

But its moving the body inapprotiate manner (for example. Body is showing somewere lese in the screen). At same time my sprite image not moving (attached with body).

Answer 1

What i did to solve the positioning problem is i taken a normal sprite image and just change position in update with that box2d body position.

Eg:-

your carbody movement based on server position. it will move invisibly. your b2body without userdata(image)

carMainBody->SetTransform(b2Vec2(serverposition,carMainBody->GetPosition().y), 0.0f);

here your normal sprite image. just attch your sprite image like this

 car->setPosition(ccp(carMainBody->GetPosition().x*PTM_RATIO,carMainBody->GetPosition().y*PTM_RATIO));

This method worked fine for me.