Hi. I was reading about traversing the screengraph using an adapter. I saw the following example at github:
https://github.com/jMonkeyEngine/BookSamples/blob/master/src/chapter07/LoadEffectFromJ3o.java
SceneGraphVisitorAdapter myEmitterVisitor =new SceneGraphVisitorAdapter() { @Override public void visit(Geometry geom) { super.visit(geom); searchForEmitter(geom); // trigger custom test } @Override public void visit(Node node) { super.visit(node); searchForEmitter(node); // trigger custom test } private void searchForEmitter(Spatial spatial) { // specify search criteria, e.g. class, name, properties if (spatial instanceof ParticleEmitter) { System.out.println("Emitter in "+ spatial.getName()); // modify the found node: ((ParticleEmitter)spatial).setNumParticles(10); } } };
My doubt is why is the visit method is called on super? Shouldn’t the code work without this step?