CCEaseSineIn Odd Behavior

[kjpou1]

From forum post: https://forums.xamarin.com/discussion/48108/cceasesinein-odd-behavior

I am trying to move an object up and down the screen using a sine ease but it looks like its doing some sort of a bounce or elastic ease. If I move from point A to point B it goes way past B and then comes back to it.

var up = new CCMoveTo (2f, new CCPoint (center.X, center.Y + 160));
var upEase = CCEaseSineIn (up);
sprite.RunAction(upEase);

Doing this same thing in cocos2d-x show a smooth animation that gradually changes speed but never goes past point B.

Is there something i need to do to get it to tween correctly?

[kjpou1]

Confirmed that there is a bounce here as described in issue and forum post

[kjpou1]

This has been wrong for a while using an incorrect formula. Commit 8350f22 fixes these inconsistencies.