How to get something to go where I point

Unity Engine
,
1

I have a character that (in theory) goes to an enemy when I point at it. Currently, I’m using a raycast that checks if the thing is an enemy and then saves it as an object in the pointer script on the player

  RaycastHit hit;
        if(Physics.Raycast(transform.position, transform.forward, out hit, 40))
        {
            WhipEnemy we = hit.transform.GetComponent<WhipEnemy>();

            if (we != null)
            {
                Target = hit.transform.gameObject;
                attacking = true;

            }
        }

then the character script references that and should pathfind to it

  agent.SetDestination(ns.Target.transform.position);
        if(ns.Target = null)
        {
            isFollowing = true;
            isChasing = false;
        }

problem is the character script returns a null reference error when I point. is there a better way of doing this?

2

You did not show the full code but presumably Target is not always set. For example, before you give it its first value. Your character controller has a null check for Target, but above that you still use ns.Target.transform.position in your SetDestination call. So if Target is null, then that line will trigger a NullReferenceException. You probably want to move it into your null check. If that does not do what you want it to do you might want to provide more context and/or code.

3

Classical mistake. In this line you SET ns.Target to null. You did not check it against null. Comparison is done with ==. A single = means assignment.

Apart from that in the line before you already try to access the transform of the Target. When the target is actually null that line would throw a null reference exception. So it should be inside the null checked if body.

So something like that:

        if(ns.Target != null)
        {
            agent.SetDestination(ns.Target.transform.position);
        }
1 Like
4

OH my GOOOOOD every time. thanks bunny. I swear that mistake is gonna be the death of me.