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



[RequireComponent(typeof(Camera))]


Dont forget to Dellet #yourScriptName and write your Script Name...
public class MultipleTargetCamera : MonoBehaviour
{
    

    public Vector3 offset;

    public List<Transform> targets;

    private Vector3 velocity;

    public float SmoothTime = 0.5f;

    public float minZoom = 40f;
    public float MaxZoom = 10f;

    public float ZoomLimeter = 50f;

    private Camera cam;


    void LateUpdate(){
        if(targets.Count == 0)
            return;
            Move();
            Zoom();

    }

    void Move(){
                 Vector3 centerPoints = GetCenterPoints();

         Vector3 newPosition = centerPoints + offset;

         transform.position = Vector3.SmoothDamp(transform.position, newPosition, ref velocity, SmoothTime);
    }

    void Zoom(){

        float newZoom = Mathf.Lerp(MaxZoom, minZoom, GetGraetestDistance() / ZoomLimeter);
        cam.orthographicSize = Mathf.Lerp(cam.orthographicSize, newZoom, Time.deltaTime);

    }


    float GetGraetestDistance(){
        var bounds = new Bounds (targets[0].position, Vector3.zero);
        for (int i = 0; i< targets.Count; i++){
            bounds.Encapsulate(targets[i].position);
        }

        return bounds.size.x;
    }

    Vector3 GetCenterPoints(){
        if(targets.Count == 1){
            return targets[0].position;

        }

        var bounds = new Bounds(targets[0].position, Vector3.zero);
        for (int i = 0; i<targets.Count; i++){
            bounds.Encapsulate(targets[i].position);

        }
        return bounds.center;
    }
    // Start is called before the first frame update
    void Start()
    {
        cam = GetComponent<Camera>();
    }

    // Update is called once per frame
    void Update()
    {
        
    }
}