Weapon

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


[RequireComponent(typeof(LineRenderer))]
[RequireComponent(typeof(AudioSource))]
public class Weapon : MonoBehaviour
{
    public int Dmg = 10;
    public float fireRate = .1f;
    public float Gun_Range;

    WaitForSeconds shotduration = new WaitForSeconds(0.1f);
    LineRenderer laserline;
    float nextFire;
    public RaycastHit hit;
    private Transform BulletE;
    private Shootable health;
    AudioSource Sounds;
    // Use this for initialization
    void Start ()
    {
        //This grabs the components needed
        laserline = GetComponent<LineRenderer>();
        BulletE = GetComponent<Transform>();
        Sounds = GetComponent<AudioSource>();
    }

    void Update()
    {
        //if the player left clicks and they are allowed to fire than move on
        if (Input.GetMouseButtonDown(0) && Time.time > nextFire)
        {
            //reset time until next fire
            nextFire = Time.time + fireRate;
            //Start the routine that creates the "bullet"
            StartCoroutine(ShotEffect());
            //Find the objects current rotation
            Vector3 fwd = transform.TransformDirection(Vector3.forward);
            //cast the ray and name it hit
            RaycastHit hit;
            //Set the first posistion of the laser (computers count up from 0 so 0 is the first number)
            laserline.SetPosition(0, BulletE.position);
            //Cast out a ray to see if it hits something, should it hit than set the line's endpoint to the object that was hit
            if (Physics.Raycast (transform.position,fwd, out hit, Gun_Range))
            {
                //the point that was hit
                laserline.SetPosition(1, hit.point);
                health = hit.collider.GetComponent<Shootable>();

                if (health != null)
                {
                    health.Damage(Dmg);
                }
            }
            else
            {
                //if we hit nothing than just make a beam max distance away
                laserline.SetPosition(1, transform.position + (fwd * Gun_Range));
            }
        }
    }

    protected static RaycastHit GetHit(RaycastHit hit)
    {
        return hit;
    }
    IEnumerator ShotEffect()
    {
        Sounds.Play();
        //enable laser, wait, disable
        laserline.enabled = true;
        yield return shotduration;
        laserline.enabled = false;
    }
}