Как задать для объекта новую систему отсчета поворота?

private bool isRotating = false;
	 IEnumerator Rotate( Vector3 axis, float angle, float duration = 0.3f)
   {
     Quaternion from = transform.rotation;
     Quaternion to = transform.rotation;
     to *= Quaternion.Euler( axis * angle );
    
     float elapsed = 0.0f;
     while( elapsed < duration )
     {
       transform.rotation = Quaternion.Slerp(from, to, elapsed / duration );
       elapsed += Time.deltaTime;
       yield return null;
     }
     transform.rotation = Quaternion.Euler(0,0,0);
     isRotating = false;
   }



 void Update()
    {
		
        if(Input.GetKeyDown(KeyCode.UpArrow) && !isRotating)
		{
			isRotating = true;
			StartCoroutine(Rotate(Vector3.right, 90));
			
		}
		
		if(Input.GetKeyDown(KeyCode.DownArrow) && !isRotating)
		{
			isRotating = true;
			StartCoroutine(Rotate(Vector3.right, -90));
			
		}
		
		if(Input.GetKeyDown(KeyCode.LeftArrow) && !isRotating)
		{
			isRotating = true;
			StartCoroutine(Rotate(Vector3.forward, 90));
			
		}
		
		if(Input.GetKeyDown(KeyCode.RightArrow) && !isRotating)
		{
			isRotating = true;
			StartCoroutine(Rotate(Vector3.forward, -90));
			
		}
    }