timer countdown too fast

Question

my code for countdown is work, but when i activate it, the time twice faster from normal time

 var g :float;
 static var guiTime : float; 
 function Awake(){
     guiTime=g;
     }
 function OnGUI () {
     if (guiTime > 0){
        guiTime -=  Time.deltaTime;var minutes : int = guiTime / 60;
        var seconds : int = guiTime % 60;
        var fraction : int = (guiTime * 100) % 100;
 
        text = String.Format ("{0:00}:{1:00}:{2:000}", minutes, seconds, fraction); 
        GUI.Label (Rect (400, 25, 100, 30), text);
     }
 }

anybody know what's wrong?

Answer 1

Best Answer

Answer by Antony-Blackett · May 30, 2011 at 08:59 PM

OnGUI() is called multiple times a frame so you are deducting deltaTime multiple times per frame. Move the guiTime -= Time.deltaTime; line to Update()

 var g :float;
 static var guiTime : float; 
 
 function Awake()
 {
     guiTime=g;
 }
 
 function OnGUI () {
     if (guiTime > 0){
        var minutes : int = guiTime / 60;
        var seconds : int = guiTime % 60;
        var fraction : int = (guiTime * 100) % 100;
 
        text = String.Format ("{0:00}:{1:00}:{2:000}", minutes, seconds, fraction); 
        GUI.Label (Rect (400, 25, 100, 30), text);
     }
 }
 
 function Update()
 {
     guiTime -=  Time.deltaTime;
 }

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Answer 2

Answer by aldonaletto · May 30, 2011 at 09:01 PM

Time.deltaTime is meaningful only in Update() and FixedUpdate(). Move most of your routine to Update() and let only the statement GUI.Label(...) in OnGUI().

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Antony-Blackett · May 31, 2011 at 08:47 PM 0

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deltaTime is no meaningful in FixedUpdate() either. You need to use Time.fixedDeltaTime in FixedUpdate(). I think you mean LateUpdate().

Wolfram · May 31, 2011 at 09:11 PM 1

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However, in FixedUpdate(), deltaTime automatically maps to fixedDeltaTime, so you can still use it.

Antony-Blackett · Jun 01, 2011 at 09:54 AM 0

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Oh, I did not know that... what about in coroutines that wait for fixed update?

burnout156 Antony-Blackett · Feb 18 at 08:50 PM 0

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Time.fixedDeltaTime work for me, thanks

timer countdown too fast

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