Object.Instantiate not copying fields from a Component

Questions & Answers
1

If I do this:

using UnityEngine;
using System.Collections;

public class Foo : MonoBehaviour
{
    static bool isInstantiated;
    int bar;

    void Start ()
    {
        if (!isInstantiated) {
            bar = 1;
            print (this.bar);
            Foo newFoo = (Foo)Instantiate (this);
            print (newFoo.bar);
            isInstantiated = true;
        }
    }
}

I see as output (1, 0) where I expect to see (1, 1)

I guess this happens because Instantiate does not clone values from the hierarchy, just types. Am I correct in thinking that? I can't see it written clearly in the Unity docs.

3

After some digging: Instantiate copies values of public fields. Make 'bar' public in my code snippet and the instantiated clone will have the value set as I expect it should be.

2

REMOVED first explanation

EDIT

This is my code example in JS:

Variable declarations

public var bar : int = 0;
public static var isInstantiated : boolean = false;

Start method:

if (!isInstantiated) {
    bar = 1;
    Debug.Log("1-" + bar);
    var newFoo : GameObject = Instantiate(GameObject.Find("Foo(Clone)")) as GameObject;
    Foo.isInstantiated = true;
    Debug.Log("2-" + (newFoo.GetComponent(Foo) as Foo).bar);        
}

The output in my case is:

"1-1" "2-1"

As it should be. So, my first explanation and guessing was wrong. The main difference I see is that you are instantiating "this" - maybe this does not work as intended and clones the prefab instead? Can you make sure that you are cloning the actual object by either using a reference from a previous Instantiate or like I did it by looking it up via Find?