# Random Motion!
**URL:** https://forum.kirupa.com/t/random-motion/5612
**Category:** flash
**Created:** [September 17, 2002, 5:19pm UTC](https://forum.kirupa.com/t/random-motion/5612 "2002-09-17T17:19:15Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@jayjay](https://forum.kirupa.com/u/jayjay)
#### Post date: [September 17, 2002, 5:19pm UTC](https://forum.kirupa.com/t/random-motion/5612/1 "2002-09-17T17:19:15Z")
I’m trying to make add this little movie clip to my page but I can’t seem to get it to work properly. What I’m trying to do is this. I have a bunch of short lines and i want them to move up and down smoothly and continously. I looked at the random motion tut on the site but it didn’t look like what I was after.
Can some one help?
Thanks
PS. you can view the site at www.jcgsolutions.ca so you can have a look at what I’m talking about. The movie clip is in the upper right corner.
jayjay
---
### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [September 17, 2002, 5:54pm UTC](https://forum.kirupa.com/t/random-motion/5612/2 "2002-09-17T17:54:46Z")
Just remove EVERYTHING that relates to the \_x position of the object. Here… I edited the script for what you want to do, Tried, tested, and true it works…
```auto
//special thanks to Suprabeener for the code
function getdistance(y, y1) {
var rise;
rise = y1-y;
return (_root.hyp(rise));
}
function hyp(a, b) {
return (Math.sqrt(a*a+b*b));
}
MovieClip.prototype.reset = function() {
//specify the width and height of the movie
width = 300;
height = 400;
//-------------------
var dist, norm;
this.y = this._y;
this.speed = Math.random()*4+2;
this.targy = Math.random()*height;
dist = _root.getdistance(this.y, this.targy);
norm = this.speed/dist;
this.diffy = (this.targy-this.y)*norm;
};
MovieClip.prototype.move = function() {
if (_root.getdistance(this.y, this.targy)>this.speed) {
this.y += this.diffy;
} else {
this.y = this.targy;
if (!this.t) {
this.t = getTimer();
}
if (getTimer()-this.t>1000) {
this.reset();
this.t = 0;
}
}
this._y = this.y;
};
```
Just replace the frame actions with the actions above and it should work the way you wanted.
To change the speed just change this line…
this.speed = Math.random()\*4+2;
---
### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [September 17, 2002, 6:13pm UTC](https://forum.kirupa.com/t/random-motion/5612/3 "2002-09-17T18:13:22Z")
Thanks…
I can’t seem to get it to work though. Maybe I’m not adding the code to right spot. Do I put in the main timeline or in the movie clip itself?
Thanks again…I’ll keep trying.
jayjay
---
### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [September 17, 2002, 6:18pm UTC](https://forum.kirupa.com/t/random-motion/5612/4 "2002-09-17T18:18:17Z")
That code goes on the main timeline. On a Frame.
The code given to you for the movie clip is in the tutorial, I believe it is something like this…
```auto
onClipEvent(enterFrame){
move();
}
```
So the first code I gave you goes on the timeline in a Frame and the code above goes directly on your movie clip.
---
### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [September 17, 2002, 6:28pm UTC](https://forum.kirupa.com/t/random-motion/5612/5 "2002-09-17T18:28:58Z")
Thanks alot!! it’s working fine now! I should’ve known to do that.
jayjay
---
### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [September 17, 2002, 6:31pm UTC](https://forum.kirupa.com/t/random-motion/5612/6 "2002-09-17T18:31:45Z")
It is good that you got it working:)