Fade in AudioLister over time #c

Question

I'm trying to fade in the audioLister over time but i cant seem to get it to work.

 public class Opening : MonoBehaviour {
     
     public Transform player;
     public GUISkin skin;
     public GUISkin skinTwo;
     bool closedCapOne = false;
     bool closedCapTwo = false;
     bool closedCapThree = false;
     bool closedCapFour = false;
     bool closedCapFive = false;
     bool closedCapSix = false;
     bool title = true;
     float size = 20;
     float startT;
     float endT;
 
     void Start () {
         StartCoroutine(Open());
     }
     
     void Update () {
         size += 10 * Time.smoothDeltaTime;
     }
     
     IEnumerator Open () {
             AudioListener.volume = 0.0f;
             CameraFade.FadeOutMain(0.1f);
         yield return new WaitForSeconds (5);
             closedCapOne = true;
             title = false;
         yield return new WaitForSeconds (8);
             closedCapOne = false;
             closedCapTwo = true;
         yield return new WaitForSeconds (3);
             closedCapTwo = false;
             closedCapThree = true;
         yield return new WaitForSeconds (2);
             closedCapThree = false;
             closedCapFour = true;
         yield return new WaitForSeconds (2);
             closedCapFour = false;
             closedCapFive = true;
         yield return new WaitForSeconds (4);
             closedCapFive = false;
             closedCapSix = true;
         yield return new WaitForSeconds (5);
             // fade in sound
             startT = Time.time;
             endT = Time.time + 2f;
             AudioListener.volume = Mathf.Lerp(0.0f, 1.0f, (Time.time - startT) / (endT - startT) );
             // --
             CameraFade.FadeInMain(3);
         yield return new WaitForSeconds (2);
             closedCapSix = false;
     }

How would you go about this?

Answer 1

Answer by Tarlius · Mar 18, 2013 at 11:14 AM

I'm not really sure what you're trying to achieve here, but your problem is going to be that you're only calling the volume update once, after 5 + 8 + 3 + 2 + 2 + 4 + 5 seconds.

You probably want to do something like:

 float t = 0;
 while(t < 2f) {
     AudioListener.volume = Mathf.Lerp(0.0f, 1.0f, t);
     yield return null;
     t+=Time.deltaTime;
 }
 AudioListener.volume = Mathf.Lerp(0.0f, 1.0f, 1);

Note that if all those bools are necessary you can probably replace them with a simple enum (state machine), or an int (currentClosedCap)

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Fade in AudioLister over time #c

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