Can't use lookat() multiple times

Troubleshooting
1

i have an array created by method, when i debug everything looks fine but 1 out of 10 mob face where i want.

    private Node mob[] = new Node[number];
    private Node[] regularMob(Vector3f vec){
            for(int i = 0; i < number; i++){
                mob[i] = (Node) assetManager.loadModel("Models/Mob.j3o");
                mob[i].setName("blah"+i);
                mob[i].setLocalTranslation(vec);
                control = mob[i].getControl(AnimControl.class);
                channel = control.createChannel();
                channel.setAnim(Walking);
                
            }
            return mob;
        }
        
        public void mobZ(int number){
            for(int i = 0; i < number;i++){
                
                Vector3f vec = new Vector3f(FastMath.nextRandomInt(-100, 100),0, FastMath.nextRandomInt(-100, 100));
                rootNode.attachChild(regularMob(vec)[i]);
            }
        }
      
@Override
    public void update(float tpf){
       for (int i = 0; i < number; i++){
            mob[i].lookAt(cam.getLocation(), Vector3f.UNIT_Y);
            mob[i].rotate(0, FastMath.DEG_TO_RAD * 180, 0);
            
        }
    }
2

Have you really looked at your code?:

Shouldnā€™t this method be like this?:

    private Node regularMob(Vector3f vec) {
        Node newMob = (Node) assetManager.loadModel("Models/Mob.j3o");

        newMob.setName("blah"+i);
        newMob.setLocalTranslation(vec);

        control = newMob.getControl(AnimControl.class);
        channel = control.createChannel();
        channel.setAnim(Walking);

        return newMob;
    }

And so on, adding the mob to the array after this method?:

    public void mobZ(int number) {
        Vector3f vec = new Vector3f(FastMath.nextRandomInt(-100, 100),0, FastMath.nextRandomInt(-100, 100));
        for(int i = 0; i < number; i++) {
            Node newMob = regularMob(vec);
            mob[i] = newMob;
            rootNode.attachChild(newMob);
        }
    }

In your original code you are overriding every array item each time on each iteration. So after the last mob is created, the full array is containing that mob.

1 Like
3

This is what the other reply is talking about. Each pass through the loop you create the entire array again and add the iā€™th item.

You ultimately end up with number * number amount of mobs and only the last ā€˜numberā€™ of them will face the way you want.

4

Well, my very first game so. Thank you