HauntedBloodlines/Assets/Scripts/FollowTargetSmooth.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class FollowTargetSmooth : MonoBehaviour
{
    [Tooltip("You can leave this field empty if you want the followable to be the transform that this script is attached to.")]
    public Transform followableObject;
    public Transform target;
    public float positionLerpSpeed = 0.1f;
    public float rotationLerpSpeed = 0.1f;

    public bool shouldUpdateRotation = true;
    public bool targetIsPlayer;

    private void Start()
    {
        if (targetIsPlayer) 
        {
            target = PlayerManager.GetInstance().playerGameObj.transform;
        }
    }

    public void MakePlayerToFollowTarget() 
    {
        followableObject = PlayerManager.GetInstance().playerGameObj.transform;
    }

    public void ChangeTarget(Transform newTarget) 
    {
        target = newTarget;
    }

    public void NoTarget() 
    {
        target = null;
    }

    public void TargetIsPlayer() 
    {
        targetIsPlayer = true;
        target = PlayerManager.GetInstance().playerGameObj.transform;
    }

    private void FixedUpdate()
    {
        if (target != null)
        {
            if (followableObject == null)
            {
                // Calculate the new position using Lerp
                Vector3 newPosition = Vector3.Lerp(transform.position, target.position, positionLerpSpeed * Time.fixedDeltaTime);

                // Move the GameObject to the new position
                transform.position = newPosition;

                if (shouldUpdateRotation)
                {
                    // Calculate the new rotation using Lerp
                    Quaternion newRotation = Quaternion.Lerp(transform.rotation, target.rotation, rotationLerpSpeed * Time.fixedDeltaTime);

                    // Rotate the GameObject to the new rotation
                    transform.rotation = newRotation;
                }
            }
            else
            {
                // Calculate the new position using Lerp
                Vector3 newPosition = Vector3.Lerp(followableObject.position, target.position, positionLerpSpeed * Time.fixedDeltaTime);

                // Move the GameObject to the new position
                followableObject.position = newPosition;

                if (shouldUpdateRotation)
                {
                    // Calculate the new rotation using Lerp
                    Quaternion newRotation = Quaternion.Lerp(followableObject.rotation, target.rotation, rotationLerpSpeed * Time.fixedDeltaTime);

                    // Rotate the GameObject to the new rotation
                    followableObject.rotation = newRotation;
                }
            }
        }
    }
}