Dispenser Help

So I have made a script that I've applied to something that can be compared with the Dispensers in Half Life, aka the stations that gives you health and armor. I have a problem though, no matter where they are in the level, if I drain one they all get drained (and I get both health and armor if I have both of them out)

Script: using UnityEngine; using System.Collections;

 public class RechargeScript : MonoBehaviour {
     public enum tankTypes {Health, Armor};
     public tankTypes tankType;
 
     public Texture[] states; //Element 0 = Usable; Element 1 = Depleted;
 
     public float ammount; //Max 100;
 
     public GameObject front;
 
     FPSController fpsc;
 
     // Use this for initialization
     void Awake(){
         fpsc = GameObject.FindWithTag ("Player").GetComponent<FPSController> ();
     }
 
     void Start () {
         bool state = true;
 
         if (states.Length > 2 || states.Length < 2) {
             Debug.LogError ("Variable states in " + gameObject.name + " takes 2 elements and 2 only!");
             state = false;
         }
         if (ammount > 0 && state == true) {
             front.GetComponent<Renderer> ().material.mainTexture = states [0];
         } else if (ammount == 0 && state == true) {
             front.GetComponent<Renderer> ().material.mainTexture = states [1];
         }
     }
     
     // Update is called once per frame
     void Update () {
         ammount = Mathf.Clamp (ammount, 0, 100);
 
         RaycastHit hit;
         if (Input.GetButton ("Use")) {
             Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
             if(Physics.Raycast (ray, out hit, 1)){
                 if(hit.transform.tag == "RechargeStation"){
                     if(ammount > 0){
                         ammount -= 10 * Time.deltaTime;
                         if(tankType == tankTypes.Armor)
                             fpsc.armor += 10 * Time.deltaTime;
                         else if(tankType == tankTypes.Health)
                             fpsc.health += 10 * Time.deltaTime;
                     }
                     else{
                         Debug.Log("Tank is Empty");
                         front.GetComponent<Renderer>().material.mainTexture = states[1];
                     }
                 }
             }
         }
     }
 }
 

It works as intended exept for the problem I've explained. FPSController is a script I've made, shouldn't need more info than that, I just ask for the health and armor variables from it anyways. If you need anymore info tell me and Ill add it in.

Thanks!