Unity Script Generated by ScripterAI

"HitscanGun with Fire rate, multiple shot sound and animation with cooldown and doesn't play when reloading, Ammo system and Reloading with R key, sound play when R is pressed, Muzzle effect, TrailRender bullet and impact effect that destroy itself."

using System.Collections;
using UnityEngine;

public class HitscanGun : MonoBehaviour
{
    public float fireRate = 0.1f;
    public int maxAmmo = 30;
    public int currentAmmo;
    public float reloadTime = 2f;
    public bool isReloading = false;

public AudioClip[] shotSounds;
    public AudioClip reloadSound;
    public AudioSource audioSource;

public Animator animator;

public ParticleSystem muzzleFlash;
    public GameObject impactEffect;
    public LineRenderer bulletTrail;

public Camera fpsCam;

private float nextTimeToFire = 0f;

void Start()
    {
        currentAmmo = maxAmmo;
    }

void Update()
    {
        if (isReloading)
            return;

if (currentAmmo <= 0 || Input.GetKeyDown(KeyCode.R))
        {
            StartCoroutine(Reload());
            return;
        }

if (Input.GetButton("Fire1") && Time.time >= nextTimeToFire)
        {
            nextTimeToFire = Time.time + 1f / fireRate;
            Shoot();
        }
    }

IEnumerator Reload()
    {
        isReloading = true;
        audioSource.PlayOneShot(reloadSound);
        animator.SetBool("Reloading", true);

yield return new WaitForSeconds(reloadTime - 0.25f);
        animator.SetBool("Reloading", false);
        yield return new WaitForSeconds(0.25f);

currentAmmo = maxAmmo;
        isReloading = false;
    }

void Shoot()
    {
        currentAmmo--;

muzzleFlash.Play();

int randomIndex = Random.Range(0, shotSounds.Length);
        audioSource.PlayOneShot(shotSounds[randomIndex]);

RaycastHit hit;
        if (Physics.Raycast(fpsCam.transform.position, fpsCam.transform.forward, out hit))
        {
            bulletTrail.SetPosition(0, muzzleFlash.transform.position);
            bulletTrail.SetPosition(1, hit.point);

StartCoroutine(ShowBulletTrail());

GameObject impactGO = Instantiate(impactEffect, hit.point, Quaternion.LookRotation(hit.normal));
            Destroy(impactGO, 2f);
        }
    }

IEnumerator ShowBulletTrail()
    {
        bulletTrail.enabled = true;
        yield return new WaitForSeconds(0.1f);
        bulletTrail.enabled = false;
    }
}