I can't change the LookAt through code :(

Unity Engine
,
1

I have a little Code where it’s drawing a line towards the closest enemy in the Scene Window.

Now I want the cinemachine camera to swap the LookAt (that is looking to the player) with the enemy by holding down the right mouse button, but I am getting these two Errors as if it can’t find the enemy.

Here is the code:

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

public class FindClosestEnemy : MonoBehaviour
{
    Cinemachine.CinemachineFreeLook freeLook;

    Enemy closestEnemy = null;
    public Transform playerLookAt;

    public void Start()
    {
        freeLook = GetComponent<Cinemachine.CinemachineFreeLook>();
    }


    void Update()
    {
        FindTheClosestEnemy();

        if (Input.GetMouseButtonDown(1))
        {
            freeLook.LookAt = closestEnemy.transform;
        }
        else if (Input.GetMouseButtonUp(1))
        {
            freeLook.LookAt = playerLookAt;
        }

        Debug.Log(closestEnemy);
    }

    public void FindTheClosestEnemy()
    {
        float distanceToClosestEnemy = Mathf.Infinity;
        Enemy[] allEnemies = GameObject.FindObjectsOfType<Enemy>();

        foreach (Enemy currentEnemy in allEnemies)
        {
            float distanceToEnemy = (currentEnemy.transform.position - this.transform.position).sqrMagnitude;
            if(distanceToEnemy < distanceToClosestEnemy)
            {
                distanceToClosestEnemy = distanceToEnemy;
                closestEnemy = currentEnemy;
            }
        }
        Debug.DrawLine(this.transform.position, closestEnemy.transform.position);
    }
}

The Debug.Log(closestEnemy); is even telling me which GameObject is the closest

but the Cinemachine is not swapping the LookAt with the Enemy

and these are the errors:

  1. NullReferenceException: Object reference not set to an instance of an object
    FindClosestEnemy.Update () (at Assets/New/FindClosestEnemy.cs:25)

  2. NullReferenceException: Object reference not set to an instance of an object
    FindClosestEnemy.Update () (at Assets/New/FindClosestEnemy.cs:29)

Edit: I set the Enemy in Line 11 to public and It also shows me in the inspector which the closest one is.

2

From the error message, maybe freeLook is null.

freeLook is set in Start() by GetComponent. Did you attach your script to a gameObject that has CinemachineFreelook?

3

Actually, no it’s in the players GameObject because I use 2 CinemachineFreeLooks (one for normal view and one for a closer view) I can transition them by enabling and disabling like this:

if (Input.GetMouseButton(1))
        {
            thirdPersonCam.SetActive(false);
            aimCam.SetActive(true);
        }
        else
        {
            thirdPersonCam.SetActive(true);
            aimCam.SetActive(false);
        }

I put this provisionally in the players movement script to test it out.

Edit: Could it be, that I get his Error, because the code does not know to which one it should give response? Because there are two but I didn’t assigned one specifically?

4

The script does not have a reference to any freelook. It expects it on the gameObject it is attached to.

Make freeLook public and set freeLook from the editor. Change your script to this:

public class FindClosestEnemy : MonoBehaviour
{
    public Cinemachine.CinemachineFreeLook freeLook; // set this in the editor
    Enemy closestEnemy = null;
    public Transform playerLookAt;
 
    void Update()
    {
// ...
1 Like
5

I set it before hitting play, it dissapears, I set it while play, it works perfect!

I changed the freeLook = GetComponent…

to

freeLook=GameObject.FindGameObjectWithTag(“Cinemachine”).GetComponent<Cinemachine.CinemachineFreeLook>();

and added a tag to it. now it works perfectly :smile: Thanks a LOT!