Ways to Unity 3: Move your Camera with Code

Let’s create a script FollowPlayer.cs

I think MoveCameraDynamically is more suitable for its name.

attach that script to Main Camera

Just drag your script directly to the Main Camera that under the hierarchy window. That’s it.

attach your player object to the FollowPlayer script 

We do this because we want to get some information from our player, for example, the location of our player.

Here I used the word player, it’s just a reference to the object or character that a human player controls.

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

public class FollowPlayer : MonoBehaviour
{
    public GameObject player; // this is the public variable that we have declared

    // Start is called before the first frame update
    void Start()
    {

    }

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

    }
}

We do that attachment by dragging the player object to the script variable.
You’ll see the variable inside of the script component that was attached to your Main Camera object after you have had declared a public variable in the script of FollowPlayer.

move your camera along with the player

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

public class FollowPlayer : MonoBehaviour
{
    public GameObject player;

    // Start is called before the first frame update
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {
        transform.position = player.transform.position;
        }
}

original link

https://yingshaoxo.blogspot.com/2020/11/ways-to-unity-3-move-your-camera-with.html

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