question: public void reposition ( Point2D point ) { double w = bbox . getWidth ( ) ; double h = bbox . getHeight ( ) ; body . setTransform ( new Vec2 ( toMeters ( point . getX ( ) + w / 2 ) , toMeters ( appHeight - ( point . getY ( ) + h / 2 ) ) ) , body . getAngle ( ) ) ; }
target:  Repositions an entity that supports physics directly in the physics world. Note: depending on how it is used, it may cause non-physical behavior.