Cherno
1
Should be easy, right? I am at a loss here 
I just want to continuously rotate an object around it’s y axis in a CoRoutine. Do I have to use Quaternion.Slerp or Lerp instead of transform.Rotate?
public IEnumerator Explosion(gameObject go) {
float speed = 100.0f;
float lifeTime = Random.Range(0.4f, 0.8f);
for (float t = 0.0f; t < lifeTime; t += Time.deltaTime) {
go.transform.Rotate(Vector3.up * speed * t, Space.Self);
}
yield return null;
}
Rotate() is what you want, provide a pivot and an angle.
Unity ScriptReference: Transform.Rotate.html
Maybe this will clarify things (Adjust as needed):
IEnumerator SpinObject (GameObject go) {
float duration = 30f;
float elapsed = 0f;
float spinSpeed = 1f;
while (elapsed < duration)
{
elapsed += Time.deltaTime;
go.transform.Rotate(Vector3.up, spinSpeed * Time.deltaTime);
yield return new WaitForEndOfFrame();
}
yield return null;
}