Help with Gui Texture Lifebar changing width

Unity Engine
1

Hi guys I’m trying to use a lifebar texture as getting smaller instead of just displaying the current life as a number. I’ve been using life as a public float, I can adjust it in the inspector for test runs, it’s worked just fine, I’ve been displaying it as just GUI text in the corner of the screen. I googled a few things looking for help on this and i’ll keep trying different things, may even figure it out before anyone posts here. But if you happen to take a quick look at this and can tell me what I’m doing wrong I’d appreciate it. Heres the script:
Also, in case your wondering, I use other scripts to access the Life float in this script to add damage.

using UnityEngine;
using System.Collections;

public class LifeScript : MonoBehaviour {

	public GUITexture healthbar;
	public RobotControllerPC RobotControllerPC; //script where my player controller is
	public float life = 100f;
	private float widthbar;

	void Start () {

				widthbar = healthbar.pixelInset.width;
		}
	void Update () {
		widthbar = widthbar * life / 100;
		if (life <=0f) {
			RobotControllerPC.dead = true;
		}
	}

	void OnGUI () {  // just keeping this here until the lifebar is figured out
		guiText.text = " " + life;
	}
}
2

1.) You don’t assign the width to your healthbar anywhere
2.) if life becomes 0, widthbar will become zero and will never go back, because 0*life/100 will still be 0.

change
widthbar = widthbar * life / 100;
to
healthbar.pixelInset.width=widthbar*life/100;