Here, we will take our first steps into Visual Studio's code editing capabilities. As previously explained, this will be a very simple script with some, but with very little, explanation.

Now, double-click on the grayed-out RectAnim script to open Visual Studio:

Once it is loaded, your screen should look comparable to this:

You should see the RectAnim.cs filename highlighted in the left-upper corner. When a developer writes code, this is where we do it. Currently, you will see a couple of namespace declarations, the class name, and a few functions.

The Start() function is called when an object is first instantiated; it is one of the first things that happens. So, it is the setup for a scripted object in Unity.

The Update() function is called for every frame. When you need something to change on a regular basis, it is normally done through Update.

Now, replace all the code in RectAnim.cs with the following code:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System;
using HoloToolkit.Unity.InputModule;

public class RectAnim : MonoBehaviour, IInputClickHandler { 

    Animator anim; 
       // Use this for initialization 
       void Start () { 
        anim = GetComponent<Animator>(); 
       } 
       // Update is called once per frame 
       void Update () { 

          if (!anim.GetBool("idle")) 
          { 
              anim.Play("RectMove"); 
          } 
          else if (anim.GetBool("idle")) 
          { 
              anim.Play("RectIdle"); 
        } 

       } 


 public void OnInputClicked(InputClickedEventData eventData) {

       if (anim.GetBool("idle"))
       {
          anim.SetBool("idle", false);
       }
       else
       {
          anim.SetBool("idle", true);
       }
 }
 public void OnSpeechKeywordRecognized(SpeechKeywordRecognizedEventData eventData)
 {
      var voiceCommand = eventData.RecognizedText.ToLower();

      switch (voiceCommand)
      {  

        case "change color":
        {


           break;
        } 
        case "reset":
        {

          break;
        }
       default:
          break;
   }
  }
}

The OnInputClicked(InputClickedEventData eventData) function is part of the HoloToolKit Input function. When an object is being looked at via Gaze and the user does the air-tap gesture, it will send the OnInputClicked() message to the object and run that code.

If we press the Play button:

 

We can see what appears to be a white bar against a black background:

Now, if we click on the two halves of the bar, we will see them move up and down:

If you see the blocks moving, congratulations on learning the basics of Unity animation.