Creating an Instructions Controller

We're now going to create a controller object and script for our project. This first implementation will be relatively simplistic. It will grow and improve later in the chapter. In Unity, perform the following:

1. In the Project window, create a C# Script in your scripts folder (Assets/HowToChangeATire/Scripts/) and name it InstructionsController.
2. In Hierarchy, select Create Empty object.
3. Rename it Game Controller.
4. Drag the InstructionsController script into Inspector, adding it as a component.

Save the scene and then open the script for editing. Like most Unity scripts, this class will be derived from MonoBehaviour. We write a couple of functions required to update the UI based on user input. Open InstructionsController.cs for editing and write the following:

File: InstructionsController.cs
using System.Collections;
using System.Collections.Generic; 
using UnityEngine; 
using UnityEngine.UI; 

public class InstructionsController : MonoBehaviour { 
    public Text...