Assessing variables from other scripts using an accessor seems inelegant. Please explain.

As near as I can tell based on this reference... Referencing non static variables from another script? C# ... the following code below is how I have to access variables ( members public or private ) from one script via another script.

Notice that I make another class inside my EnemyControl script to access the health from EnemyControl, even though health is public. Also I have to set my accessor method "updateHealth" to static to resolve a compiler error (An object reference is required to access non-static member).

My question is, is this the correct way to do this? It seems a little cludgy/hacky.

Here's my calling code...

     // detect collisions
      void OnCollisionEnter(Collision collision) 
     {
         if (collision.gameObject.name == "Enemy")
         {
             // add to score
             HudManager.addToScore(10);
             
             // modify enemy health
             Accessor enemyScript = collision.gameObject.GetComponent<Accessor>();
             Accessor.updateHealth(-1, collision.gameObject);
             
             // kill off bullet
             Destroy (this.gameObject);
             
         }
     }

Here's the accessor code.

 using UnityEngine;
 using System.Collections;
 
 public class EnemyControl : MonoBehaviour {
     
     public int health = 100;
 
     // Use this for initialization
     void Start () {
     
     }
     
     // Update is called once per frame
     void Update () {
         
     }
     
     
     
 }
 
 public class Accessor : MonoBehaviour {
     
     // update health
     public static void updateHealth( int val, GameObject which )
     {
         which.GetComponent<EnemyControl>().health -= val;
         Debug.Log ("Enemy takes a hit");
     }
 }

As an aside, HudManager.addToScore() was done using static members and declaring the method static as well. I was okay with this because HudManager is a singleton but I need EnemyControl to work on instances of the enemies as they spawn. Here's the HudManager code anyway... ( for the sake of search engines this code shows how to fire projectiles at the enemy and detect collisions with the enemy ) I'm also using NGUI for the HUDs.

 using UnityEngine;
 using System.Collections;
 
 public class HudManager : MonoBehaviour {
     
     public static int ammo = 256;
     public float bulletSpeed = 11;
     public static int score = 1;
     public GameObject projectile;
     
     private static UIBaseLabel ammoText;
     private static UIBaseLabel scoreText;
     
     
     
     // Use this for initialization
     void Start () {
         
         // initial update UI
         ammoText = GameObject.Find ("AmmoLabel").GetComponent<UIBaseLabel>();
         ammoText.text = "Ammo:" + ammo;
         
         // initial update UI
         scoreText = GameObject.Find ("ScoreLabel").GetComponent<UIBaseLabel>();
         scoreText.text = "Score:" + score;
     }
     
     // Update is called once per frame
     void Update () {
         
         // check for firing
         if (Input.GetMouseButtonDown(0))
         {
             // reduce ammo counter
             if ( ammo > 0)
             {
                 ammo -= 1;
             
                 // update ammo counter
                 ammoText.text = "Ammo:" + ammo;
                 
                 // Instantiate the projectile at the position and rotation of this transform
                 GameObject gunNozzle = GameObject.Find("Nozzle");
                 GameObject clone = Instantiate(projectile, gunNozzle.transform.position, gunNozzle.transform.rotation) as GameObject;
                 
                 // Add force to the cloned object in the object's forward direction
                 clone.gameObject.AddComponent<Rigidbody>();
                 clone.rigidbody.mass = 0.1f;
                 clone.rigidbody.useGravity = false;
                 clone.rigidbody.AddForce(clone.transform.forward * bulletSpeed);
                 
                 // attach script
                 clone.gameObject.AddComponent("projectileController");
             }
         }
     
     }
     public static void addToScore(int val)
     {
         // increment score by amount
         score += val;
         
         // update UI
         scoreText.text = "Score:" + score;
     }
 }