Mathf.Clamp01 always return 1

At first time ZerotoOne() is called, value of i gradually increases from 0 to 1. However, i will always be 1 after that. Is it possible to reset Mathf.Clamp01() to start from 0 again?

Code (csharp):

1. var state:int = 1;
2. function Update () {
3.     if (state == 1)
4.     {
5.         state=2;
6.     }
7.     if (state ==2)
8.     {
9.         ZerotoOne();
10.     }
11. }
12.  
13. function ZerotoOne()
14. {  
15.     var i:float = Mathf.Clamp01(Time.time*0.3);
16.     Debug.Log(i);
17.     if (i <= 1.0)
18.     {
19.         if (i == 1.0)
20.         {
21.             state = 1;
22.         }
23.     }
24. }

 

don't use Time.time? That value constantly increases through the scene, so after the first second, it will always be > 1.0

Code (csharp):

1.  
2. var timer:float = 0.0;
3.  
4. function Update() {
5.    timer += time.deltaTime * 0.3;
6. }
7.  

should do the trick, and you can reset it by a simple "timer = 0.0;"

 

If your trying to have it loop from zero to one repeatedly you'd want to change line:

Code (csharp):

1. var i:float = Mathf.Clamp01(Time.time*0.3);

to

Code (csharp):

1. var i:float = Mathf.Repeat(Time.time*0.3f, 1.0f);

the change will always be between 0 and 1 just it will loop going 0 .. 1 0 .. 1 you can use Mathf.PingPong to have it go 0 .. 1 .. 0 .. 1


if you wanted to have it reset at times you could do what Tom suggested or you can have a var startTime : float = 0; then use it like so:

Code (csharp):

1. var i:float = Mathf.Clamp01( (Time.time - startTime )*0.3f);

and then you would just set startTime to Time.time when you wanted the values returned by Clamp01 to start off as zero again.