Enable/disable a GameObject component from a script [Unity3D]

Question

I need to take the value of a boolean (put in a variable called "bouclier") set in one script to enable or disable a GameObject.

The variable is in game object Player (bottom right here):

And I need to enable of disable this game object ("Bouclier01"):

To do this, I attached a script to game object "Bouclier01". Here it is:

using UnityEngine;
using System.Collections;

public class ShowBouclier : MonoBehaviour {

    public GameObject Bouclier01;
    public bool bouclier;

    // Use this for initialization
    void Start () {
        Bouclier01 = Bouclier01.GetComponent<GameObject>();
    }

    // Update is called once per frame
    void Update () {

        Bouclier01.enabled = false;
        if (bouclier == true) {
            Bouclier01.enabled = true;
        }
    }
}

I must be missing something, because this comes up with this error message:

Any idea how to properly accomplish this?

You should look up answers before asking them. This question was asked and answered countless times. — DzoniGames
– DzoniGames, Commented Mar 26, 2016 at 20:42

mt3d · Accepted Answer · 2020-04-29 11:28:54Z

12

You can use GameObject.SetActive() function to activate or deactivate a GameObject (I think GameObject.enabled was in the old API):

Bouclier.SetActive(false);

By the way, if you want to know the current activation state of a GameObject, use GameObject.activeSelf, which is a read only variable:

Debug.Log(Bouclier.activeSelf);

edited Apr 29, 2020 at 11:28

answered Mar 26, 2016 at 18:02

mt3d

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5 Comments

Lucien S. Over a year ago

Thanks! That's one thing that was wrong, but I think there is more... I can't seem to be able to read the value of "bouclier" at the Player level. Is there something else obviously wrong in my script?

mt3d Over a year ago

What happens with you exactly, can you talk more?

Lucien S. Over a year ago

I'm making a little video to explain what's up, it will be up in a minute or two :)

Lucien S. Over a year ago

Here's the vidéo! youtube.com/watch?v=N0dAZw52Hlk Should I ask another question?

mt3d Over a year ago

I see that you are changing the variable bouclier in the script Move, but what about the variable bouclier in ShowBouclier script, is there any relation between the two? I think you should change ShowBouclier.bouclier not Move.bouclier .

Kamran Mohazzab · Accepted Answer · 2019-03-28 12:50:18Z

1

it will works

public GameObject otherobj;//your other object
public string scr;// your secound script name
void Start () {
(otherobj. GetComponent(scr) as MonoBehaviour).enabled = false;
}

answered Mar 28, 2019 at 12:50

Kamran Mohazzab

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