Collision/Creation help

hey :slight_smile:

I’m quite new to JME and am only starting to understand some of the concepts.

I’m trying to create a box at wherever i click, i have a floor and am trying to use a ‘ray’ produced from the camera to find the collision point on the floor and create a box at those coordinates!

can someone please help? my game just freezes when i right click.

this is my ActionListener method:

private ActionListener actionListener = new ActionListener() {

public void onAction(String name, boolean keyPressed, float tpf) {

if (name.equals(“shoot”) && !keyPressed) {



if (name.equals(“place”) && !keyPressed) {

public int y;

Ray ray = new Ray(cam.getLocation(), cam.getDirection());

CollisionResults results = new CollisionResults();

ray.collideWith(rootNode, results);





The thing I can see when I look at the tutorial is:

ray.collideWith(rootNode, results);

should be

shootables.collideWith(ray, results);

Where shootables is the node in which you have everything you want to collide with, I’d recommend not having rootNode there since I think you’ll hit the camera when you try (if I remember correctly).

Hope that’s all there is to it :slight_smile: