void preTick(float timeStep) {
        if (isKinematic()) {
            rigidBody.setPhysicsLocation(kpTransform.getTranslation());
            rigidBody.setPhysicsRotation(kpTransform.getRotation());
            rigidBody.getCollisionShape().setScale(kpTransform.getScale());
        }
    }
Internal callback, invoked just BEFORE the physics is stepped.

@param timeStep the physics time step (in seconds, &ge;0)
jme3-jbullet/src/main/java/com/jme3/bullet/animation/PhysicsLink.java