# Setting values in instance before Start()?
**URL:** https://discussions.unity.com/t/setting-values-in-instance-before-start/604044
**Category:** Scripting
**Tags:** Scripting
**Created:** [November 4, 2015, 3:48am UTC](https://discussions.unity.com/t/setting-values-in-instance-before-start/604044 "2015-11-04T03:48:58Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@philstrahl](https://discussions.unity.com/u/philstrahl)
#### Post date: [November 4, 2015, 3:48am UTC](https://discussions.unity.com/t/setting-values-in-instance-before-start/604044/1 "2015-11-04T03:48:58Z")
Hey there folks. I’m pretty new so apologies for a probably silly question. Is it possible to pass an Instance some parameters before its Start() gets executed? Because this is what I’d like to do:
- Create an instance of a script
- Set some values
- Execute its Start()
My current work-around is by adding a new method`PostStart()`to the instance and calling it like this:
foo = gameObject.AddComponent();
foo.someInitialValue = “bar”;
foo.PostStart();
Ideally I’d love to have something like this:
foo = new Foo(“bar”);
but Unity tells me to use AddComponent instead of new…
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### Author:  [@Azmar](https://discussions.unity.com/u/Azmar)
#### Post date: [November 4, 2015, 3:56am UTC](https://discussions.unity.com/t/setting-values-in-instance-before-start/604044/2 "2015-11-04T03:56:00Z")
Well sounds like you are trying to add the script which yes of course you will need the addComponent to add the script. After I don’t understand why you couldn’t do foo = new Foo(params); as this is a constructor and can be done. Just setup a constructor inside your class, and good to go? Best to look up constructors with Unity on how to accomplish this.
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### Author:  [@Ian094](https://discussions.unity.com/u/Ian094)
#### Post date: [November 4, 2015, 5:10am UTC](https://discussions.unity.com/t/setting-values-in-instance-before-start/604044/3 "2015-11-04T05:10:02Z")
Use Awake()
It gets called before Start()
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### Author:  [@philstrahl](https://discussions.unity.com/u/philstrahl)
#### Post date: [November 4, 2015, 11:17pm UTC](https://discussions.unity.com/t/setting-values-in-instance-before-start/604044/4 "2015-11-04T23:17:50Z")
Thanks for your suggestions. Alright, I guess it works when I create a sub-class with a proper constructor like I head before. My error was that it was not a sub-class but a wholly separate class and that’s why Unity wasn’t allowing it.
I grasp the basics of OOP and love to compartmentalize my code but I still have a lot to learn about best practices because I am over-complicating things for myself in my little test prototype 🙂