PlayerHealth

using UnityEngine;
using System.Collections;

public class PlayerHealth : MonoBehaviour {
	public int maxHealth = 100;
	public int curHealth = 100;
	
	public float healthBarLength;
	// Use this for initialization
	void Start () {
		healthBarLength = Screen.width / 2;
	}
	
	// Update is called once per frame
	void Update () {
		AddjustCurrentHealth(0);
	}
	
	void OnGUI () {
		// Display "cruHealth / maxHealth" on screen
		GUI.Box(new Rect(10, 10, healthBarLength, 20), curHealth + "/" + maxHealth);
	}
	
	public void AddjustCurrentHealth(int adj) {
		curHealth += adj;
		
		// Edge check
		if (curHealth < 0)
			curHealth = 0;
		
		if (curHealth > maxHealth) 
			curHealth = maxHealth;
		
		if (maxHealth < 1)
			maxHealth = 1;	
		
		// Change width of GUI.Box by pacentage of "curHealth divede maxHealth"
		healthBarLength = (Screen.width / 2) * (curHealth / (float)maxHealth);
	}
}