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Question by Shonysky · Apr 07, 2015 at 06:54 PM · scriptingbasics

number that crease and decrease

is there a function/argument that keeps going from 1 to -1? and then from -1 to 1?

something like this:

0.0f, 0.1f, . . . 0.9f, 1.0f, 0.9f, 0.8f, 0.7f, . . . 0.1f, 0.0f, -0.1f, -0.2f, -0.3f, . . . -0.9f, -1.0f, -0.9f, -0.8f, . . . -0.1f, 0.0f, . . .

it's like a Lerp function

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Answer by tanoshimi · Apr 07, 2015 at 06:55 PM

Yes. Mathf.PingPong.

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avatar image ozturkcompany · Apr 07, 2015 at 07:07 PM 0
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Hello, in addition to tanoshimi's correct answer you may have a trouble about having negative values on pingpong since it won't never go below zero. So do this trick; value = $$anonymous$$atfh.PingPong(...,20) - 10; So if value is zero at the beginning now with the line above it will start from -10 and will go to 10.

avatar image Shonysky · Apr 08, 2015 at 09:08 AM 0
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yes, i've tried that argument $$anonymous$$athf.PingPong (0.5f*Time.deltaTime, 20f)-10f but the value just keeps at -9.99 or -9.98

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Answer by ozturkcompany · Apr 08, 2015 at 11:22 AM

Hello, Try this;

 #pragma strict
 private var i : float = 0;
 private var j : float = 0;
 
 function Update ()
 {
     j += 0.01;//Makes "i" value decrease and increase 0.01 each frame, you can change it to any number you want
     i = Mathf.PingPong(j, 2) - 1;
     print(i);
 }

Mathf.PingPong(t, length); The "t" value must not be constant, that's why your variable keeps in some value.

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