# Upconstant?

**URL:** <https://forum.kirupa.com/t/upconstant/308858>\
**Category:** Uncategorized\
**Created:** [May 1, 2010, 11:23pm UTC](https://forum.kirupa.com/t/upconstant/308858 "2010-05-01T23:23:48Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![radioactive\_bob](https://avatars.discourse-cdn.com/v4/letter/r/ea5d25/32.png) [@radioactive\_bob](https://forum.kirupa.com/u/radioactive_bob)\
**Post date:** [May 1, 2010, 11:23pm UTC](https://forum.kirupa.com/t/upconstant/308858/1 "2010-05-01T23:23:48Z")

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just wondering what upconstant does  
if (Key.isDown(Key.UP)) {  
yspeed = yspeed-power\*upconstant;  
i took it away to find out but didnt do anything any one know this ?

( in actionscript 2 )