1

So I’m trying to have a raycast fire at the nearest target and return the object’s that was hit name. I added Debug.Draw to see if it was the raycast and as far as I see the raycast doesn’t do anything, not sure what I did wrong; please help.

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

public class GrappleHook : MonoBehaviour
{
    public RaycastHit HitInfo;

    private GameObject GetClosestTarget(string targetTag)
    {
        GameObject closestTarget = null;
        float closestDistance = 3.0F;
        foreach (GameObject target in GameObject.FindGameObjectsWithTag(targetTag))
        {
            float dist = Vector3.Distance(transform.position, target.transform.position);
            if (dist < closestDistance)
            {
                closestTarget = target;
                closestDistance = dist;
            }
        }
        return closestTarget;
    }

    private void Update()
    {
        GameObject ClosestTarget = GetClosestTarget("Enemy");

        transform.LookAt(ClosestTarget.transform);

        if(Physics.Raycast(transform.position, transform.forward, out HitInfo))
        {
            print(HitInfo.collider.gameObject.name);
            Debug.DrawLine(Vector2.zero, HitInfo.point); //Doesn't Draw Anything
        }

    }
}
2

If you want to see where the raycast is visually, debug outside the raycast

Debug.DrawLine(transform.position, transform.forward, Color.red);
if(Physics.Raycast(transform.position, transform.forward, out HitInfo))
         {
             print(HitInfo.collider.gameObject.name);
         }

This will draw a red line from your character to 1meter forward - which is the exact length and direction of your raycast.

3

I think it is drawing but just too short to see because you added no distance. Maybe.

Try the code below:

private void Update()
    {
        GameObject ClosestTarget = GetClosestTarget("Enemy");
 
        transform.LookAt(ClosestTarget.transform);
		
		Debug.DrawRay(transform.position, transform.TransformDirection(Vector3.forward) * 2, Color.white);

        if(Physics.Raycast(transform.position, transform.forward, out HitInfo))
        {
            Debug.DrawRay(transform.position, transform.TransformDirection(Vector3.forward) * 1000, Color.Red);
        }
 
    }
}
4

Oh it’s only in the scene view, size isn’t a problem; it went as far as I could see, but now I know the raycast is what is wrong with the code, it wont follow the closest target like I want. Thank You For The Help.