QUESTION - adding methods to already exsiting classes

[joe3dge]

do anyone know how to add a self-crated function as a method to an already existing class in flash?
More specificly, i would like to ad this function to the MovieClip Class

Code: Select all

distanceFrom(otherMovieClip){
    var xDist:Number = this._x - otherMovieClip._x;
    var yDist:Number = this._y - otherMovieClip._y;
    var Dist:Number = Math.sqrt(Math.pow(xDist, 2)+Math.pow(yDist, 2));
    return Dist;
}

the idea is that i could write firstMoiveClip.distanceFrom(secondMovieClip) and it would return the distance between the two as a number. is this possible? if so, how would i do it?

thanks, joe3dge