How do you change/access values on variables that are on a script that is on a game object that is instantiated from a prefab

Questions & Answers
1

I am making a tower defense game, and I want to have a circle that appears when you select an existing turret to show the range of it. To do this, I need to have the script on the circle access the range value that is held within the script on the turret. I would also like to be able to use this to upgrade turrets (so just changing values on the turret’s script during the game)

2

Use GetComponent to access the script.
Make sure the variable is public so you can access it from outside (as you are trying here)

Example:

GameObject turret; // The turret in question
float GetRange {
      TurretScript turretScript = turret.GetComponent<TurretScript>();
      return turretScript.range; // 'range' is the variable in TurretScript
}