Weapon script

using UnityEngine;
using System.Collections;

public class Weapon : MonoBehaviour {
	public float fireRate = 0;
	public float Damage = 10;
	public LayerMask whatToHit;
	public Transform BulletTrailPrefab;
	private float timeToSpawnEffect = 0;
	public float effectSpawnRate = 10;
	private float timeToFire = 0;

	Transform firePoint;
	// Use this for initialization
	private void Awake () {
		firePoint = transform.FindChild ("firePoint");
		if (firePoint == null) {
			Debug.LogError ("Firepoint not found, something went wrong");

		}

	}

	// Update is called once per frame
	void Update () {
		if (fireRate == 0) {
						if (Input.GetButtonDown ("Fire1")) {
								Shoot ();

						}
				}
		else {
			if (Input.GetButtonDown ("Fire1") && Time.time > timeToFire) {
				timeToFire = Time.time + 1/fireRate;
				Shoot ();
			}
		}
	}

	 void Shoot() {
		Vector2 mousePosition = new Vector2 (Camera.main.ScreenToWorldPoint (Input.mousePosition).x, Camera.main.ScreenToWorldPoint (Input.mousePosition).y);
		Vector2 firePointPosition = new Vector2 (firePoint.position.x,firePoint.position.y);
		RaycastHit2D hit = Physics2D.Raycast (firePointPosition, mousePosition-firePointPosition, 100, whatToHit);
		if (Time.time >= timeToSpawnEffect) {
						Effect ();
			timeToSpawnEffect = Time.time + 1/effectSpawnRate;
				}
		Debug.DrawLine (firePointPosition, (mousePosition-firePointPosition)*100,Color.cyan);
		if (hit.collider != null) {
			Debug.DrawLine (firePointPosition, hit.point, Color.red);
			Debug.Log ("We hit" + hit.collider.name + " and did " + Damage +" damage");
		}

	}
	void Effect () {
		Instantiate (BulletTrailPrefab, firePoint.position, firePoint.rotation);
	}

}