gistfile1.js

PositionedRectangle = function(w,h,xIn,yIn) {
    var x = xIn, 
        y = yIn,
        rect = new ORectangle(w,h),
        me = {
            getX: function() { return x; },
            setX: function(xIn) { this.x = xIn; },
            getY: function() { return y; },
            setY: function(yIn) { this.y = yIn; },
            distanceFrom: function(otherRect) {
                return Math.sqrt(
                    Math.pow(this.getX() - otherRect.getX(), 2) 
                    + Math.pow(this.getY() - otherRect.getY(), 2)
                );
            },
	    toString: function() { 
                return rect.toString() + ' at ' + this.getX() + ',' + this.getY();
            }
        };
    return mixin(rect, me);
};