# I NEED to know what it means

**URL:** <https://forum.kirupa.com/t/i-need-to-know-what-it-means/191688>\
**Category:** Uncategorized\
**Created:** [June 22, 2006, 9:41am UTC](https://forum.kirupa.com/t/i-need-to-know-what-it-means/191688 "2006-06-22T09:41:04Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![santalea](https://avatars.discourse-cdn.com/v4/letter/s/d6d6ee/32.png) [@santalea](https://forum.kirupa.com/u/santalea)\
**Post date:** [June 22, 2006, 9:41am UTC](https://forum.kirupa.com/t/i-need-to-know-what-it-means/191688/1 "2006-06-22T09:41:04Z")

</div>

can someone explain to me the meaning of these few lines

> 

function moveChaser() {  
var theta:Number = Math.atan2(tarArray[targetIndex][1] - arrowmc.\_y, tarArray[targetIndex][0] - arrowmc.\_x);  
arrowmc.\_rotation = (theta \* 180 / Math.PI)+90;  
if(Math.abs((tarArray[targetIndex][0]-arrowmc.\_x)) \> 2 || Math.abs((tarArray[targetIndex][1]-arrowmc.\_y)) \> 2){  
arrowmc.\_x += Math.cos(theta) \* 3;  
arrowmc.\_y += Math.sin(theta) \* 3;  
line\_mc.lineTo(arrowmc.\_x , arrowmc.\_y);  
}  
if(arrowmc.hitTest(tarArray[targetIndex][0],tarArray[targetIndex][1],false)){  
targetIndex++;  
}  
if(tarArray[targetIndex][0] == undefined){  
clearInterval(move\_int);  
trace(“successful”);  
}  
updateAfterEvent();  
};

thanx alot for the help…