Raycast LineRenderer, how to set end direction of Ray by transform to the center of the screen or crosshair?

Questions & Answers
1

I try to do a simple fps, and I just can’t figure how I can do this.
I need to change lane 82 of my script to be center of my screen or crosshair, any guidance?

using UnityEngine;
using UnityEngine.UI;
using System.Collections;

public class PlayerShooting : MonoBehaviour
{
    public int minDmg = 15;
	public int maxDmg = 25;
    public float timeBetweenBullets = 0.15f;
    public float range = 50;
	
	public Texture crossHair;
	public Rect middle;

    Ray shootRay;
    RaycastHit shootHit;
    ParticleSystem gunParticles;
    LineRenderer gunLine;
    AudioSource gunAudio;
    Light gunLight;
	int shootableMask;
    float effectsDisplayTime = 0.2f;
	float timer;


	void OnGUI() 
	{
		GUI.DrawTexture (middle, crossHair);
	}
	
	
	void Awake ()
    {
        shootableMask = LayerMask.GetMask ("Shootable");
        gunParticles = GetComponent<ParticleSystem> ();
        gunLine = GetComponent <LineRenderer> ();
        gunAudio = GetComponent<AudioSource> ();
        gunLight = GetComponent<Light> ();
    }


    void Update ()
    {
        timer += Time.deltaTime;

		middle = new Rect((Screen.width - crossHair.width/4) / 2, (Screen.height - crossHair.height/4) /2, crossHair.width /4, crossHair.height/4);
		
		if(Input.GetButton ("Fire1") && timer >= timeBetweenBullets && Time.timeScale != 0)
        {
            Shoot ();
        }

        if(timer >= timeBetweenBullets * effectsDisplayTime)
        {
            DisableEffects ();
        }
    }


    public void DisableEffects ()
    {
        gunLine.enabled = false;
        gunLight.enabled = false;
    }


    void Shoot ()
    {
        timer = 0f;

        gunAudio.Play ();
		 
        gunLight.enabled = true;

        gunParticles.Stop ();
        gunParticles.Play ();

        gunLine.enabled = true;
        gunLine.SetPosition (0, transform.position);

        shootRay.origin = transform.position;
		shootRay.direction = transform.forward;     //I NEED THIS TO BE THE CENTER OF MY SCREEN OR CENTER OF MY CROSSHAIR

        if(Physics.Raycast (shootRay, out shootHit, range, shootableMask))
        {
            EnemyHealth enemyHealth = shootHit.collider.GetComponent <EnemyHealth> ();
            if(enemyHealth != null)
            {
                enemyHealth.TakeDamage (Random.Range(minDmg, maxDmg), shootHit.point);
            }
            gunLine.SetPosition (1, shootHit.point);
        }
        else
        {
			gunLine.SetPosition (1, shootRay.origin + shootRay.direction * range);
        }
    }
}
2

i was looking for a solution to my problem, i found your question.
Let me answer, maybe someone will have a problem like yours;)

Line 79 : “gunLine.SetPosition (0, transform.position);” is the starting point of Line. You can change it like gunLine.SetPosition(0, new Vector3(0,0,0));