Hi everyone!

I got a game object (Sprite ) like a box with physic body create by PhysicsBody::createBox() and set this body to that sprite
my problem is when game update i set position :

Vec2 item_pos = item->getPosition();

        item_pos.x -= speed * delta;

        item->setPosition(item_pos);

it move nice rigth to left screen with it’s physic body

but if i set position by this way

Vec2 item_pos = item->getPosition();

        item_pos.x = -screen_width

        item->setPosition(item_pos);

The sprite move out but the body. what is problem here or am i missing something.
Thank!!!!