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Question by Eagle-Bound · Sep 07, 2016 at 09:27 PM · c#colornoobopacity

color won't change

In my game, the opacity of a color is supposed to increase, wait for a second, and go back. However, the color opacity goes up, but not down. If anyone knows why, please tell me. My script:

using UnityEngine; using System.Collections;

public class GameManager : MonoBehaviour {

 public SpriteRenderer[] colors;

 private int colorSelect;

 public float lit;

 private float litCounter;

 // Use this for initialization
 void Start () {

     if (litCounter > 0) {
         litCounter -= Time.deltaTime;
     } else {
         colors [colorSelect].color = new Color (colors [colorSelect].color.r, colors [colorSelect].color.g, colors [colorSelect].color.b, 0.5f);
     }
 
 }
 
 // Update is called once per frame
 void Update () {
 
 }

 public void StartGame () {

     colorSelect = Random.Range (0, colors.Length);

     colors [colorSelect].color = new Color (colors [colorSelect].color.r, colors [colorSelect].color.g, colors [colorSelect].color.b, 1f);


     litCounter = lit;
 }

}

Thanks!

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Answer by doublemax · Sep 07, 2016 at 09:40 PM

Start() is only called once. You probably wanted that code there in Update().

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avatar image Eagle-Bound · Sep 07, 2016 at 09:42 PM 1
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Thanks! I can't believe the answer was that simple!

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Answer by JEFFDOG11111 · Sep 07, 2016 at 09:44 PM

you can use IEnumerator..

eg: all you do is call : StartCoroutine( OpacityAnimate () );

 IEnumerator OpacityAnimate ()
     {
         // Scipt to Make Color oppacity go Up using "While loops"
         while ( opacity < 1f )
         {
             opacity + 0.001f;
         }
 
         yield return new WaitForSeconds (1);   // this will pause the opacity for 1 sec
 
         // Scipt to Make Color oppacity go Down using "While loops"
         while ( opacity > 0.1f )
         {
             opacity - 0.001f;
         }
 
     }

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