# Add counter depending on mouse speed?

**URL:** <https://forum.kirupa.com/t/add-counter-depending-on-mouse-speed/323077>\
**Category:** flash\
**Created:** [June 15, 2011, 8:38pm UTC](https://forum.kirupa.com/t/add-counter-depending-on-mouse-speed/323077 "2011-06-15T20:38:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![humbuged](https://avatars.discourse-cdn.com/v4/letter/h/b38774/32.png) [@humbuged](https://forum.kirupa.com/u/humbuged)\
**Post date:** [June 15, 2011, 8:38pm UTC](https://forum.kirupa.com/t/add-counter-depending-on-mouse-speed/323077/1 "2011-06-15T20:38:11Z")

</div>

Hello,

I want to make a counter get higher depending on mouse speed.

```auto

mousespeedy = _ymouse - oldymouse;
oldymouse = _ymouse;
posmousespeedy = Math.abs(mousespeedy / 100);
addMe += posmousespeedy;
bar_mc._xscale = addMe;

```

The addMe variable comes out as NaN. Help?