object to turn slowly towards player

Ok so after looking around already the only method i could find for making an enemy look at a player is the Lookat() function. problem is i need my enemy to slowly rotate to face the player.

what is the simplest way to achieve this?

 

Use a coroutine.

Loop every frame slerping from the initial rotation to the Quaternion.LookRotation rotation.

Code (csharp):

1.  
2. IEnumerator LookAtOverTime(Transform t, Transform target, float dur)
3. {
4.     Quaternion start = t.rotation;
5.     Quaternion end = Quaternion.LookRotation(target.position - t.position);
6.     float t = 0f;
7.     while(t < dur)
8.     {
9.           t.rotation = Quaternion.Slerp(start, end, t / dur);
10.           yield return null;
11.           t += Time.deltaTime;
12.     }
13. }
14.  

Something like that (code untested, written directly in the browser wysiwyg).

 

there's really no simple function for this?

 

Not built into Unity.

There are various 3rd party tween engines that could do it in fewer lines of code.

The Coroutine though is fairly simple.

 

I know this post is about a year old, but this solved an issue I was having. Just wanted to point out for other people though that the Transform variable "t" in the parameter list should be different from the float variable "t" inside the Coroutine. I changed the float "t" to "rotationTime" so "rotationTime < dur", "rotationTime / dur", and finally "rotationTime += Time.deltaTime"

 

Thank you. For others possibly as code:

Code (CSharp):

1. IEnumerator LookAtOverTime(Transform t, Transform target, float dur)
2.     {
3.         Quaternion start = t.rotation;
4.         Quaternion end = Quaternion.LookRotation(target.position - t.position);
5.         float rotationTime = 0f;
6.         while (rotationTime < dur)
7.         {
8.             t.rotation = Quaternion.Slerp(start, end, rotationTime / dur);
9.             yield return null;
10.             rotationTime += Time.deltaTime;
11.         }
12.     }

 

This is an easy way to do this.

Code (CSharp):

1.     private void TurnTowardsTargetToShoot(int turnSpeed)
2.     {
3.         worldAimTarget = mouseWorldPosition;
4.         worldAimTarget.y = transform.position.y;
5.         aimDirection = (worldAimTarget - transform.position).normalized;
6.         // turn fast if shooting pistol
7.         transform.forward = Vector3.Lerp(transform.forward, aimDirection, Time.deltaTime * turnSpeed);
8.     }
9.