Public Health Var C#

I’m new to coding, and trying to build a very very basic health system with NGUI and Unity. For the moment I’m trying just trying to get the Progress Bar to update the current HP I have on the player, which I have as an int. I have 2 separate codes, 1 on the gui, and 1 on the player which I’ll add damage to, etc. For the moment I’m just trying to link them and having issues figuring it out.

I know this is very bad, but I’m trying to learn, not copy/paste. So far I have this.

PlayerHealth (attacked to player)

using UnityEngine;
using System.Collections;

public class PlayerHealth : MonoBehaviour {
 
 private int maxHealth = 300;
 public float Health;

 // Use this for initialization
 void Start () {
 Health = maxHealth;
 }
 
 // Update is called once per frame
 void Update () {
 
 }
}

gui code

using UnityEngine;
using System.Collections;

public class VitalBarBasic : MonoBehaviour {
 private UISlider _slider;
 private float _maxWidth;
 private float _health;
 
 void Awake() {
 _slider = GetComponent<UISlider>();
 _maxWidth = _slider.foreground.localScale.x;
 }
 
 void Start() {
 
    _slider = GetComponent<UISlider>();
    _health = Player.GetComponet<Health>();
 
 }
 
 public void Update() {
 _slider.sliderValue = _health/30;
 }
 
 public void UpdateDisplay( float x ) {
 _slider.sliderValue = x;
 }

}

You can use the SendMessage function, look it up on the unity documentation page.

Add a GameObject variable in the GUI script and put your player GameObject in it, create a function in the player script let’s call it AlterHealth.

Here is a really simple code for it.

void AlterHealth(int newHealth){
     health = newHealth;
}

In the GUI script use this code.

playerGO.SendMessage("AlterHealth", value);

This will send a message to the player GameObject and execute the function AlterHealth and change the players health to whatever integer value contains.