Just a simple smooth left rotation of 90 degrees is making me crazy!

Hi All,

I would like to smoothly turn a gameobject -90 degrees (left) or 90 degrees (right).
I have read a lot of forums and articles, but all does not work with me? I am not getting it and writing and trying for like 8 hours straight to get this simple task working

I tried Vector3, I tried Quaternion-eular-rotation stuff... it seems there is nothing "easy" to make a gameobject rotate -90 degrees (over it's Y-axis) and set a boolean to false when that task was completed.?

Please help

I added a nice image of my game and a cat, because we all love them.

...

private speedRotation = 5 // speed

private turnLeft = true; // test turning left

void Update(){



if (turnLeft){

skullEnemy.transform.Rotate(new Vector3(0,speedRotation,0)); // rotates

if (skullEnemy.transform.eulerAngles.y == -90){

turnLeft = false; // complete

}

}



}

 

Code (CSharp):

1. Vector3 rotation = new Vector3(0, 0, 0);
2. float speed = 100;
3. float y = 0;
4. void Update()
5.     {
6.         if(turnLeft)
7.         {
8.             y -= speed * Time.deltaTime;
9.             if (y <= -90)
10.             {
11.                 turnLeft = false;
12.                 y = -90;
13.             }
14.             rotation = new Vector3(0,y,0);
15.             skullEnemy.transform.eulerAngles = rotation;
16.         }
17.     }

 

Thank you @adehm !