Do something every few degrees of a rotation?

Question

Hi,

I have an object which can be rotated. I want to execute something every 15 degrees of rotation.

Right now I set it up like this:

 void Update()
 {
     float currentAngle = this.transform.eulerAngles.z;

     if (currentAngle > 14.5f && currentAngle < 15.5f)
     {
         "do something"
     }

     .
     .
     .
 }

and I have repeated this for every 15 degrees which works pretty well but seems way too complicated and not efficient at all to me.

Is there a more efficient way to approach this and if so how would you execute that?

Thanks in advance :)

Answer 1

Best Answer

Answer by Hellium · Dec 16, 2019 at 10:24 AM

Disclaimer : Code not tested

 private float step = 15;
 private float deltaAngle = 1;
 private bool stepReachedLastFrame;
 
 void Update()
 {
     float currentAngle = transform.eulerAngles.z;
     bool stepReached = (currentAngle + deltaAngle * 0.5f) % step < deltaAngle;
     if (stepReached && !stepReachedLastFrame)
     {
         Debug.Log("Entering zone");
     }
     else if (!stepReached && stepReachedLastFrame)
     {
         Debug.Log("Leaving zone");
     }
     stepReachedLastFrame = stepReached;
 }

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MSachs · Dec 16, 2019 at 10:42 AM 0

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Thanks a lot! works perfectly! I think you mixed up "delta" and "deltaAngle" but when I changed it it was flawless!

Thanks again! :)

Do something every few degrees of a rotation?

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