Hello, I’m using Raycasting to apply an impulse to a loaded model, when the Raycast hits the model it applies the impulse. I’ve printed the geometry name in the console with (hit), the name of the geometry is “Ninja-geom-1”, but it doesn’t seem to match.
Here’s the code: [java]if (binding.equals(“ApplyImpulse”)) {
CollisionResults results = new CollisionResults();
Ray ray = new Ray(cam.getLocation(), cam.getDirection());
ninja.collideWith(ray, results);
for (int i = 0; i < results.size(); i++) {
float dist = results.getCollision(i).getDistance();
Vector3f pt = results.getCollision(i).getContactPoint();
String hit = results.getCollision(i).getGeometry().getName();
System.out.println(hit);
if(hit == “Ninja-geom-1”) {
System.out.println(“Bam!”);
ninja.getControl(RigidBodyControl.class).applyImpulse(new Vector3f(10,0,0), pt);
}[/java]
I don’t know if I’m just doing something wrong or if this is some kind of bug.
Thanks! 
You are doing an == string compare which means that they must be the exact same instance of String object… not just the same value.
Anyway, string comparison is a really poor way to see if it is the right object. It would be better to tag it with some UserData or something.
I’ve now been trying to tag the spatial with UserData, but it seems that when I use [java]results.getCollision(i).getGeometry().getName();[/java] it returns the ninja geometry and not the ninja with the sword (spatial). How would I get the spatial name instead of the geometry name?
http://hub.jmonkeyengine.org/javadoc/com/jme3/scene/Spatial.html#getParent()
And then maybe that again.
I’ve personally responded to this question so many times that I will just refer you to the google search in the upper right if you need more information.
Alright. Thank you for the help! 