Enable/Disable script from another script (JavaScript)

Hi,
There are two scripts attached to my object. I want to disable the second script (which is called fireScript) from the first script.
I used the following code to do that:

Code (csharp):

1.  
2. gameObject.GetComponent("fireScript").enabled = false;
3.  

I get this error:
'enabled' is not a member of 'UnityEngine.Component'

I googled for 3 hours to find the solution, some had suggested some solution such as

Code (csharp):

1.  
2. gameObject.GetComponent<fireScript>().enabled = false;  // I'm not even sure if it is a Javascript!! Anyways it didn't work.
3.  
4. GetComponent("fireScript").enabled = false; // without using gameObject before GetComponent, yet didn't work!
5.  

I am using Unity 3.5.0b6 free version. Could this be a problem of Beta version of Unity?
Any suggestions?

 

Try this (C#):

Code (csharp):

1.  
2. ((fireScript)gameObject.GetComponent<fireScript>()).enabled = false;
3.  

 

Are the two scripts attached to the same game object? If so, you should just be able to use:

Code (csharp):

1.  
2.  
3. GetComponent(fireScript).enabled = false;
4.  
5.  

If that still gives you trouble (it might) you might want to separate your code up:

Code (csharp):

1.  
2.  
3. script2 : fireScript = GetComponent(fireScript);
4.  
5. fireScript.enabled = false;
6.  
7.  

those are all javascript code, btw

 

Another alternative (this is javascript too)

Code (csharp):

1.  
2. (GetComponent(fireScript) as fireScript).enabled = false;
3.  

 

It all stems from the fact that you're passing GetComponent a string which is both slower and only returns a Component instead of whatever type you're trying to get at. If you pass a type or use the generic method the explicit cast using "as" should be unnecessary.

 

@Kelso

Read above, he also tried the Type overload and still didn't work.

 

Yes, two scripts are attached to one object. The first code you mentioned is almost the same as the one I wrote in the main post, however I tried to avoid putting quotation marks around the script name as you said (so I wrote (fireScript) instead of ("fireScript") ), but it worsen the issue, I got the following error:
BCE0018: The name 'fireScript' does not denote a valid type ('not found').

Code (csharp):

1.  
2.  
3. script2 : fireScript = GetComponent(fireScript);
4.  
5. fireScript.enabled = false;
6.  
7.  

I also tried your second solution, Even though I didn't understand (script2 : fireScript) this type of variable declaration (Base on my understanding the word that comes after the 'colon colon' is the Variable-Type and fireScript can not be a variable type) but I tried this code anyway. but this also gave me the same error:
BCE0018: The name 'fireScript' does not denote a valid type ('not found').

 

AHHH guys I think I found the solution. My build setting was on Flash as I was creating my game to enter the Flash in a Flash contest. Now that I switched the platform to PC and Mac standalone, it seems that the first code I wrote in the post works perfectly.
However I don't know whether I am going to face the problem with iOS platform or not.
But thanks all of you for your replies

 

You won't.

 

Hi again guys,
The problem is now happening for the iOS platform. I switch my built setting to iOS and I get ther same error I mentioned in first post. I tried all the solutions that is presented on this thread but none of them did work. Basically anywhere that I used GetCompenent("fireScript").enabled the error "'enabled' is not a member of 'UnityEngine.Component'" was generated. This also happened where I tried to set an AudioSource component which was attached to this object, to false.

 

Don't use the string overload of GetComponent or just cast the result to fireScript (first option is better).

 

@KelsoMRK

I didn't get what you mean by this!!!

I didn't get this part either but if you mean to combine the two scripts together, I have to say I cannot because the second script is a C# script while my entire game is written in JS.

 

Don't use strings in GetComponent.

--Eric

 

well in that case I have to use either this:

Code (csharp):

1. (GetComponent(fireScript) as fireScript).enabled = false;

OR

Code (csharp):

1. ((fireScript)gameObject.GetComponent<fireScript>()).enabled = false;

None of them work. All of them gives me an error!

 

The second sample is C# code, not Javascript, hence the error. What error does the first sample produce?

 

Code (csharp):

1. GetComponent.<fireScript>().enabled = false;

Note the extra period when using javascript.

Code (csharp):

1. gameObject.GetComponent(fireScript).enabled = false;

Should work great(assuming that the script is actually name fireScript and not FireScript.)

 

If you pass it a Type you don't have to cast.

Code (csharp):

1.  
2. GetComponent(fireScript).enabled = false;
3.  

This should work fine - assuming a script named fireScript is attached to the GameObject.

If you give it a string it casts to Component which doesn't have an enabled property - hence the error.


EDIT: Get out of my head Hairball!

 

Code (csharp):

1. GetComponent(fireScript).enabled = false;

it gives "Unknown identifier 'fireScript' " error.

I have to remind you that this errorS only happens when I switch the platform to iOS. Otherwise on the standalone and web platforms the code

Code (csharp):

1. GetComponent("fireScript").enabled = false;    // with quotation mark!

...works fine.
thus if you have iOS add-on try to test the same thing and see if it works.
then let me know

Regards

 

That's nothing to do with iOS, it's because of #pragma strict not allowing dynamic typing. Anyway, http://unity3d.com/support/documentation/ScriptReference/index.Script_compilation_28Advanced29.html, specifically section 3.

--Eric

 

I'm reading this and it really feels like it should solve my problem but it isn't. i basically want to do the same thing. Kill a script running on an object with another script. Situation is I have a legacy animated enemy doing an Enemy Behaviour script so that he spots me, runs at me and starts to beat on me. that all works fine but I am unable to make him stop. i fixed a collider to the players hand that when he punch the enemy , he starts to react ( die) but I can see that the attacking script on the enemy is still running. So...with other game objects I am able to make objects enable = false in the animation window but the enemy is read only. SO I need to put a script on the enemy itself to kill the attacking script. i have spent 3 days and everything I have tried fails - including everything here. Basically the script reads OnTriggerEnter a collider tagged fist" needs to disable the script called EnemyBehaviour and run the animation "enemDie". When Iturn off the EnemyBehaviour script the enemy dies when I unch him so I know it's all good up to th point of turning off the EnemyBehaviour scriptEnemyBehaviour is a C# and my script is java. Maybe that's the problem?

 

I had the same problem, I ended up using get component but in type have the assets directory of the script.

player.GetComponent.<UnityStandardAssets.Characters.ThirdPerson.ThirdPersonCharacter>().enabled = false;

ThirdPersonCharacter is the script I am disabling. I hope this helps and is what you are looking for.

 

Disabling a script only works for Updates and probably Start.
If you created your own method, that method can still be called even the script is disabled.
probably what you need is to add boolean to activate and deactivate a method inside a script.
if any mono-behavior method is not a part of your script, enabled could probably not a member of it, and
you have to use boolean instead.

you can check your script in the inspector if it has a check box. if no check box then you probably not using any mono-behavior method like Update and Start.

 

Things are different now in Unity 5
Its simple .. First you have to get that component and then get access to its script..

GameObject.FindGameObjectWithTag ("YOUR GAME OBJECT").GetComponent<YOUR SCRIT NAME> ().enabled = false;

 

Things aren't any different in Unity 5, regarding this subject. All of the previous posts still apply. Also the code you wrote was C# and doesn't apply to this topic, which is about Unityscript (Javascript).

--Eric

 

I pissed a whole day away with this problem setting up a S*** ton of various test cases and only when I was ready to give up (which I NEVER do) did I suddenly entertain the idea that something that I could not see in the script might somehow disable communication with the inspector yet still operate. So I simply cut and pasted the the script into a new script (different name of course), got rid of the old script, changed all references to the old script to the new name and now it works perfectly. Given my experience, I would start with this one before getting fancy.