GUI Label - Blinking Text

How do I make blinking text with GUI Label? or is it easier to do it with an image? if I intend to use GUI Label (say, for localization purpose), do I have to script it manually or there is a function which make life easier? thanks.

 

Use a boolean and a coroutine to flip it on and off.

Code (csharp):

1.  
2. //Warning: Forum Code!
3.  
4. private var displayLabel = false;
5.  
6. function Start() {
7. FlashLabel();
8. }
9.  
10. function FlashLabel() {
11.    
12. // Fancy pants flash of label on and off   
13. while (1) {
14.  displayLabel = true;
15.  yield WaitForSeconds(.5);
16.  displayLabel = false;
17.  yield WaitForSeconds(.5); 
18. }
19.  
20. }
21.  
22. function OnGUI() {
23.  
24.  if (displayLabel == true)
25.  GUILayout.Label("I AM FLASHING");
26.  
27. }
28.  
29.  

Something like that. Being able to drive your GUI with an in-line state machine is flexible and powerful. More I use the Unity GUI system the more it grows on me.

 

cooooolll, thank you!

 

Thanks a lot man it works!!!

 

I normally do this with a timer and comparing the module.

Code (CSharp):

1. int t=0;
2. ...
3.        
4. void OnGUI(){
5.     t++;
6.                 if (t % 100 < 50) {
7.                         GUI.Label (new Rect (Screen.width / 2, Screen.height / 1.4f, 100, 100), "PRESS START", startSt);
8.                 }
9. }

 

You can use the Coroutines and new Unity 4.6 GUI to achieve this very easily. Check this article here

[Blinking Text - TGC][1]


[1]: http://www.thegamecontriver.com/2015/01/flashing-blinking-text-unity-46-new-gui.html

If you just need the code, here you go

Code (CSharp):

1.   using UnityEngine;
2.   using System.Collections;
3.   using UnityEngine.UI;
4.   using UnityEngine.EventSystems;
5.  
6.   public class FlashingTextScript : MonoBehaviour {
7.  
8.   Text flashingText;
9.  
10.   void Start(){
11.   //get the Text component
12.   flashingText = GetComponent<Text>();
13.   //Call coroutine BlinkText on Start
14.   StartCoroutine(BlinkText());
15.   }
16.  
17.   //function to blink the text
18.   public IEnumerator BlinkText(){
19.   //blink it forever. You can set a terminating condition depending upon your requirement
20.   while(true){
21.   //set the Text's text to blank
22.   flashingText.text= "";
23.   //display blank text for 0.5 seconds
24.   yield return new WaitForSeconds(.5f);
25.   //display “I AM FLASHING TEXT” for the next 0.5 seconds
26.   flashingText.text= "I AM FLASHING TEXT!";
27.   yield return new WaitForSeconds(.5f);
28.   }
29.   }
30.  
31.   }

 

Thanks, GluedBrain

 

Thanks @GluedBrain - just used your method you mentioned and it worked like a charm:

For those who want to see a different script - here is mine and how I used it

So when player dies, the text I entered in the Inspector for _gameOverText
[SerializeField]
private Text _gameOverText;

Will appear and start blinking every 0.5 seconds

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.UI;
5.  
6. public class UIManager : MonoBehaviour
7. {
8.     [SerializeField]
9.     private Text _scoreText;
10.     [SerializeField]
11.     private Text _gameOverText;
12.  
13.     public static int scoreValue = 0;//when you start game, score is 0
14.     [SerializeField]
15.     public Image _LivesImg;
16.     [SerializeField]
17.     private Sprite[] _liveSprites;
18.  
19.     private void Start()
20.     {
21.         _gameOverText.gameObject.SetActive(false);
22.     }
23.  
24.     void Update()
25.     {
26.         _scoreText.text = "Score: " + scoreValue;
27.     }
28.  
29.     public void UpdateLives(int currentLives)
30.     {
31.         _LivesImg.sprite = _liveSprites[currentLives];
32.         if (currentLives == 0)
33.         {
34.             StartCoroutine(displayGameOver());
35.         }
36.     }
37.  
38.     IEnumerator displayGameOver()
39.     {
40.         while (true)
41.         {
42.             _gameOverText.gameObject.SetActive(true);
43.             yield return new WaitForSeconds(.5f);
44.             _gameOverText.gameObject.SetActive(false);
45.             yield return new WaitForSeconds(.5f);
46.             //break;
47.         }
48.     }
49. }
50.  

 

Thank you GluedBrain