# Problem with duplicateMovieClip

**URL:** <https://forum.kirupa.com/t/problem-with-duplicatemovieclip/165356>\
**Category:** flash\
**Created:** [October 10, 2005, 4:14pm UTC](https://forum.kirupa.com/t/problem-with-duplicatemovieclip/165356 "2005-10-10T16:14:05Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![yodalr](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/yodalr/32/1816_2.png) [@yodalr](https://forum.kirupa.com/u/yodalr)\
**Post date:** [October 10, 2005, 4:14pm UTC](https://forum.kirupa.com/t/problem-with-duplicatemovieclip/165356/1 "2005-10-10T16:14:05Z")

</div>

first have a look at here:  
[http://www.zone.ee/avp2estclan/teksti%20katse4.swf](http://www.zone.ee/avp2estclan/teksti%20katse4.swf) (click 100\* then it plays faster)

Wht i wish to do is tht the black ball(auto) leaves line behind, first im trying to just make it leave , duplicated mc behind. But i fail. Anyideas how to make it work.

Here’s the current code:  
[AS]stop();  
loadVariablesNum(“replay.php”, 0);  
kiirus = 250;  
arv = 0;  
function koordinaat(a, b, c) {  
return ((a-b)/c);

```
}

```

function uuenda() {

```
ax1 = koordinaat(bx1, 370000, 496);
ay1 = koordinaat(by1, 6376000, 488);
arv = arv+1;
bx1 = eval("x"+arv);
by1 = eval("y"+arv);
setProperty(auto, _x, ax1);
setProperty(auto, _y, ay1);
_root.auto.duplicateMovieClip("auto2", 1);
    auto2._x = ax1// puzzeled
    auto2._y = ay1//puzzeled as well

```

}[/AS]