# Bouncing effects and elastics effects

**URL:** <https://forum.kirupa.com/t/bouncing-effects-and-elastics-effects/29489>\
**Category:** Uncategorized\
**Created:** [August 27, 2003, 1:30pm UTC](https://forum.kirupa.com/t/bouncing-effects-and-elastics-effects/29489 "2003-08-27T13:30:29Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![kyutipay](https://avatars.discourse-cdn.com/v4/letter/k/ac91a4/32.png) [@kyutipay](https://forum.kirupa.com/u/kyutipay)\
**Post date:** [August 27, 2003, 1:30pm UTC](https://forum.kirupa.com/t/bouncing-effects-and-elastics-effects/29489/1 "2003-08-27T13:30:29Z")

</div>

i read some tutorials about some clips that includes bouncing or elastic effects, the problem is i can’t still figure out some axnscripts such as MovieClip.\_x\*=100 or MovieClip.\_x-=100, what does these syntax mean anyway?

can i have some tutorial like a dribbling ball that bounces a lot then settles down after a few moment?

---

<div class="post-metadata">

**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\
**Post date:** [August 27, 2003, 1:52pm UTC](https://forum.kirupa.com/t/bouncing-effects-and-elastics-effects/29489/2 "2003-08-27T13:52:36Z")

</div>

a += 5 means a = a + 5  
the same for the rest of the operators 🙂

---

<div class="post-metadata">

**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\
**Post date:** [August 27, 2003, 1:54pm UTC](https://forum.kirupa.com/t/bouncing-effects-and-elastics-effects/29489/3 "2003-08-27T13:54:04Z")

</div>

Check this for operators explanation:  
[http://www.macromedia.com/support/flash/action\_scripts/actionscript\_dictionary/](http://www.macromedia.com/support/flash/action_scripts/actionscript_dictionary/)

And Bit-101 has a tutorial about that (check the gravity tutorial)  
[http://www.bit-101.com](http://www.bit-101.com)

---

<div class="post-metadata">

**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\
**Post date:** [August 27, 2003, 2:03pm UTC](https://forum.kirupa.com/t/bouncing-effects-and-elastics-effects/29489/4 "2003-08-27T14:03:51Z")

</div>

No need to go that far =)

[http://www.kirupa.com/developer/actionscript/tricks/incdec.htm](http://www.kirupa.com/developer/actionscript/tricks/incdec.htm)

---

<div class="post-metadata">

**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\
**Post date:** [August 27, 2003, 4:38pm UTC](https://forum.kirupa.com/t/bouncing-effects-and-elastics-effects/29489/5 "2003-08-27T16:38:37Z")

</div>

Ahh sorry Ilyas :beam: