Mathf.PingPong Wrong?

Questions & Answers
1

Hi there, I’m trying to use Mathf.Pingpong to limit the min and max of a number (currentTargetIndex) and pingpong it between 0 and a MAX value (3):

currentTargetIndex++;

currentTargetIndex = (int)Mathf.PingPong (currentTargetIndex, 3);

So I’m after this: 0, 1, 2, 3, 2, 1, 0, 1, 2 etc etc
I’m getting the impression that this function isn’t designed to achieve what I’m after - or perhaps I"m just not using it correctly. Can anyone advise me? Any help, much appreciated!

2

It can’t work the way you’re using it, because you’re assigning the return value of PingPong back to the variable you’re passing in. PingPong is a static function with no memory of what it did the last time you called it. Use it like someOtherVariable = (int)Mathf.PingPong (currentTargetIndex++, 3); then someOtherVariable will go through the 0, 1, 2, 3, 2, 1, 0, etc. sequence.