Rocket is created and flies in correct direction

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Assets/RocketBehaviour.cs

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+using UnityEngine;
+using System.Collections;
+
+public class RocketBehaviour : MonoBehaviour {
+
+    void Start ()
+    {
+    }
+
+    //TODO : kill the rocket when exiting camera view
+	void Update ()
+    {       
+    }
+}

Assets/RocketBehaviour.cs.meta

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Assets/Scripts/FireScript.cs

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+using UnityEngine;
+using System.Collections;
+
+public class FireScript : MonoBehaviour {
+
+    public Rigidbody2D rocket;
+    public Vector3 rocket_position_offset;
+    public float speed = 10f;
+
+    // Update is called once per frame
+    void Update () {
+        if (Input.GetButtonDown("Fire1"))
+        {
+            FireRocket(gameObject.GetComponent<PlayerBehavior>().GetFacingRight());
+        }
+            
+    }
+
+    void FireRocket(bool facingRight)
+    {
+        //Instantiate new rocket
+        Rigidbody2D rocketClone = (Rigidbody2D)Instantiate(rocket, transform.position, Quaternion.identity);
+
+        if (!facingRight)
+        {
+            //Flip the rocket
+            Vector3 scale = rocketClone.gameObject.transform.localScale;
+            scale.x *= -1;
+            rocketClone.gameObject.transform.localScale = scale;
+
+            //Substract the offset
+            rocketClone.gameObject.transform.position -= rocket_position_offset;
+        }
+        else
+        {
+            //Add the offset
+            rocketClone.gameObject.transform.position += rocket_position_offset;
+        }
+        //Make the rocket move
+        rocketClone.velocity = new Vector2(speed * transform.localScale.x, 0);
+    }
+}

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Assets/Scripts/PlayerBehavior.cs

@@ -47,6 +47,11 @@ public class PlayerBehavior : MonoBehaviour {
         anim.SetFloat("Speed", Mathf.Abs(xMove));
     }
 
+    public bool GetFacingRight()
+    {
+        return facingRight;
+    }
+
     // ----- Private function(s)
     private void flip()
     {