How do I constantly update a variable that is displayed in a UI text component?

Questions & Answers
1

I have a vehicle level that I set up using the Standard Assets vehicle sample level. The CarController script contains a float named Revs that I want to constantly update in the UI while driving around. I have this set up in the CarController script by converting it to a string and assigning it to a text variable which is linked in to the UI. This displays the variable but it only briefly flickers on-screen every so often, how can I make Unity constantly update the variable in the UI so I can always see what the current value is?

72105-revtext-01.jpg

link text

2

void Update()
{
revtText.text = "RPM: " + value.ToString();
}

// or

void Start()
{
 StartCoroutine(Cor_show_level());
}

private IEnumerator Cor_show_level()
{
 while (true)
 {
   revtText.text = "RPM: " + value.ToString();
   yield return new WaitForSeconds(time_between_two_prints);
 }
}

EDIT : I believe that the constant updating idea is not great :
You should update the text only when you update the value to reduce computing

3

More efficient way

  1. Make Property of Revs variable.

  2. In set{} block of property call method to change revsText.text

For example:

private int revs;

    public int Revs
    {
        get { return revs; }
        set
        {
            revs = value;
            ReflectValue(revs);
        }
    }
public void ReflectValue(int revs)
{
        revText.text = revs.ToString();
}

Here you can use event instead of direct method ReflectValue() to have more decoupled and extendible code