How do I call a function containing a while loop, inside the update function?

Question

Ok, so I'm trying to rotate my object, while a certain variable is not equal to another variable, this is the script I got.

 private var go : boolean = true;
 private var angle : float;
 private var currAngleY : float;
 
 function Update () {

 if(Input.GetKeyDown("a")) {
         rotate("left");
     }
 }
 
 function rotate(direction : String) {
     Debug.Log("rotating");
     if(direction == "left") {
         if(go) {
             currAngleY = transform.eulerAngles.y - 90;
             go = false;
         }
         while(currAngleY <= transform.eulerAngles.y) {
             angle = Mathf.MoveTowardsAngle(transform.eulerAngles.y, currAngleY, 20 * Time.deltaTime);
             transform.eulerAngles = Vector3(0, angle, 0);
         }
         
     }
 
 }

As soon as I try to run this, Unity just freezes and I have to hardreset it. Is there a way to make my object turn smoothly for only 90 degrees each time and then make it stop until the next input is given.

Answer 1

Best Answer

Answer by Eric5h5 · May 23, 2011 at 06:07 PM

Update runs once every frame, so it's clearly not suitable for that sort of thing. See here.

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Dave 11 · May 23, 2011 at 06:34 PM 0

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Thanks, this does what I want it to do. But it still needs some tweaking :)

Answer 2

Answer by diabloroxx · May 23, 2011 at 06:22 PM

Perhaps you can use If condition along with various flags to achieve what you want. Since update already does what you want your While loop to do.

For example,

 if(conditionFlag)
 {
 //Your Rotate function
 conditionFlag = false;
 }
 
 if(inputGiven)
 {
 conditionFlag = true;
 }

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Dave 11 · May 23, 2011 at 06:34 PM 0

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I'll try this one too. Thanks for the reply.

How do I call a function containing a while loop, inside the update function?

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