2D plateformer: how to shoot on the left ?

Hello everybody,

I'm a beginner in learning C# and I'm working on a 2D plateformer.
I try to code the player's shots but it works only on the right. I tried to use the condition if (x < 0) / if (x > 0) in order to dissociate the left and right shots but the character can't shot at the 0 position (so, there are two script for the two kinds of shots left and right).

Do you know how kind of condition I can use to indiquate the character position (on the left / on the right) ?

Thanks !

Here is the script:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class ArmeGGAUCHE : MonoBehaviour
6.  
7. {
8.  
9.  
10.     public GameObject projectilePrefab;
11.  
12.     private List<GameObject> Projectiles = new List<GameObject>();
13.  
14.     private float projectileVelocity;
15.  
16.     // Use this for initialization
17.     void Start ()
18.     {
19.  
20.         projectileVelocity = 9;
21.  
22.     }
23.  
24.     // Update is called once per frame
25.     void Update ()
26.     {
27.         float x = Input.GetAxis ("Horizontal");
28.  
29.         if (x < 0)
30.        
31.         {
32.             if (Input.GetButtonDown ("Fire1"))
33.             {
34.                 GameObject bullet = (GameObject)Instantiate (projectilePrefab, transform.position, Quaternion.identity);
35.                 Projectiles.Add (bullet);
36.             }
37.                 for (int i = 0; i < Projectiles.Count; i++)
38.             {
39.                 GameObject goBullet = Projectiles [i];
40.                 if (goBullet != null)
41.                 {
42.                     goBullet.transform.Translate(new Vector2(-7, 0) * Time.deltaTime * projectileVelocity);
43.             }
44.  
45.  
46.  
47.         }
48.     }
49.  
50. }
51. }