How to make an camera offsets in Unity Smooth Follow Standard Assets?

So, I tried to rip off the script from the standard assets and edited like t$$anonymous$$s: using System.Collections; using System.Collections.Generic; using UnityEngine;

 public class camFollow : MonoBehaviour {
 
     // The target we are following
     [SerializeField]
     private Transform target;
     [SerializeField]
     private Transform player;
     // The distance in the x-z plane to the target
 
     [SerializeField]
     private float rotationDamping;
     [SerializeField]
     private float heightDamping;
 
     public Vector3 offset = new Vector3(2.5f, 0f, -3f);
 
     // Use t$$anonymous$$s for initialization
     void Start() {
         
     }
 
     // Update is called once per frame
     void Update() {
             // Early out if we don't have a target
             if (!target)
                 return;
 
             // Calculate the current rotation angles
             var wantedRotationAngle = target.eulerAngles.y;
             var wantedHeight = target.position.y + globVar.camHeight;
 
             var currentRotationAngle = transform.eulerAngles.y;
             var currentHeight = transform.position.y;
 
             // Damp the rotation around the y-axis
             currentRotationAngle = Mathf.LerpAngle (currentRotationAngle, wantedRotationAngle, rotationDamping * Time.deltaTime);
 
             // Damp the height
             currentHeight = Mathf.Lerp (currentHeight, wantedHeight, heightDamping * Time.deltaTime);
 
             // Convert the angle into a rotation
             var currentRotation = Quaternion.Euler (0, currentRotationAngle, 0);
 
             // Set the position of the camera on the x-z plane to:
             // distance meters be$$anonymous$$nd the target
             transform.position = target.position;
             transform.position -= currentRotation * Vector3.forward * globVar.camDistance;
 
             // Set the height of the camera
             transform.position = new Vector3 (transform.position.x+3, currentHeight, transform.position.z);
 
             // Always look at the target
             transform.LookAt (target);
     }
 }

but the effect of it is the camera goes to the right of the player object and the rotation became weird. Did anybody know how to fix it?