How to randomly change a color on an object in C#

Question

Hi Gurus

Can you please assist me, i want to change a color on an object during runtime. I have the code and its working but i have put it in the Update function which changes the color of the object quickly and i was hoping for it to take at least a second or so before changing to anther color. He is the code below:

 // Update is called once per frame

 void Update () {
 
     // pick a random color
     Color newColor = new Color( Random.value, Random.value, Random.value, 1.0f );
 
     // apply it on current object's material
     renderer.material.color = newColor;     
 
 }

Answer 1

Answer by Waffle842 · Oct 18, 2013 at 06:04 PM

 {
     public float timer = 0.0f;
     
     void Start () 
     {
     
     }
     
     
     void Update () 
     {
         timer += Time.deltaTime;
         if (timer >= 2.0f)//change the float value here to change how long it takes to switch.
         {
             // pick a random color
             Color newColor = new Color( Random.value, Random.value, Random.value, 1.0f );
             // apply it on current object's material
             renderer.material.color = newColor;
             timer = 0;
         }
  
         
     }
 }

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Waffle842 · Oct 18, 2013 at 06:16 PM 0

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or you could put in a timer. not the most elegant solution...but still.

Answer 2

Answer by Piflik · Sep 07, 2012 at 03:55 PM

Have a look at InvokeRepeating().

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Vaga · Sep 08, 2012 at 02:32 PM -1

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Hi Philipp

and where would i put the InvokeRepeating function inside Update?, cause when i put it there its not effective

Regards; V

Piflik Vaga · Sep 08, 2012 at 02:36 PM 1

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Please don't post comments as answers.

You want to call InvokeRepeating() only once, so either put it in Start()/Awake(), if you want it to begin changing the color immediately, or use some other method to trigger it (for example OnCollision) and wrap it into an if statement, so you can prevent it from being called again while it is already running.

Vaga Vaga · Sep 08, 2012 at 03:06 PM 0

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Hi Piflik

I have put it in the Awake method and it working fine...thanks :)

Regards; V

sdgd Vaga · Oct 18, 2013 at 06:21 PM 0

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if you vote down and comment on the answer that shouldn't be an answer and if I come near by I will upvote your comment and convert answer in to a comment

I have downvoted the answer, ...

How to randomly change a color on an object in C#

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