Am I doing this right?..

My project is rather large now, and there are many types of objects that need to be aware of each other. I have been using a class called World, which I use in each of the levels. Every other class has a reference to the World class. In the World class, I have arrays/lists of each type of object, which update at the Start () and at Update (). By doing this, for example, I can use a for loop on one of the World classes arrays to have an object in the scene detect if it is a specific distance away from a type of object, then delete that object. Would using Object.FindObjectsOfType, GetComponent, GameObject.FindGameObjectsWithTag every frame make it run slow?
There are around 80 objects in the current level I am working on which are grabbed by the World class every frame.

edit: I just removed the Update () from world, and made sure that none of the objects would be deleted in this level. The frame difference is minimal, around 1 fps...

 

You should use FindObjectsOfType once, not every frame. After calling it, store the results in an array. If the number of objects are dynamic and change frequently, the usual technique is to use a List and have the objects register/unregister themselves as needed.

--Eric

 

Thanks! So something like

Awake (){
world.list.Add (this);
}

would work for each object? Would they automatically be removed if they were disabled or deleted from the heirarchy?

 

Yep.

Nope. You can use OnDestroy to do world.list.Remove (gameObject) when an object is destroyed.

--Eric