GUI display help (getting val)

Hi, I have made a fuel limit to my spacecraft and I am having trouble pulling that fuel value and displaying it using GUI.

How would I be able to display the left over fuels?

Here is my full script for it:

using UnityEngine;
using System.Collections;

public class LMScript : MonoBehaviour 
	public float EnterySpeed = 10;
	public float MainThrust = 9000F;
	public float RollThrust = 1000F;
	public float FuelLevel = 100;
	public float FuelReductionLevel = 0.8F;
	void Start () 
		rigidbody.velocity = new Vector3 (EnterySpeed,0,0);
	void Update () 
		//Fuel script
		if(Input.GetKey(KeyCode.UpArrow) && FuelLevel > 0)
			FuelLevel -= FuelReductionLevel * Time.deltaTime;
			Debug.Log (FuelLevel);
		//Landing Module applied force control
		float thrust = Input.GetAxis("Vertical") * MainThrust;
		float rot = Input.GetAxis("Horizontal") * RollThrust;
		rigidbody.AddForce(transform.up * thrust);

And here is my measurements display script:

using UnityEngine;
using System.Collections;

public class UnitDisplayScript : MonoBehaviour 
	public Transform FuelReading;
	private float speed;
	void FixedUpdate()
		speed = Mathf.Round(rigidbody.velocity.magnitude);
	void OnGUI()
		GUI.Box(new Rect(10,10,200,180), "Measurements");
		//Resultant velocity display
		GUI.Label(new Rect(20,40,120,20), "Velocity: " + speed + " m/s");
		//Altitude display
		GUI.Label(new Rect(20,70,120,20), "Altitude: " + Mathf.Round(transform.position.y) + " meters");
		//Location display
		GUI.Label(new Rect (20,100,160,20), "Position: " + ((int)transform.position.x).ToString() + "." + ((int)transform.position.y).ToString() + ".0");
		//Target location display
		GUI.Label(new Rect(20,130,120,30), "Target: 50.20.0");
		//Display the fuel values in %
		GUI.Label(new Rect(20,160,120,30), "Fuel: " + FuelReading.GetComponent("LMScript").FuelLevel + "%");

FuelReading is a Transform component, which means it will print out information about the Transform.

You need to actually access the component and the property that contain the amount of fuel left. You didn’t include the name of your script, so I’m not sure what it is, but instead of “FuelReading” in the label you need to use “FuelReading.GetComponent().FuelLevel”

You should probably just store a reference to the script instead of the Transform, as it doesn’t look like you’re going to be using the Transform for anything useful anyway.