AS3 - Punto random en un triángulo

Triangulo.as

//Créditos
//http://labs.grupow.com/index.php/2009/05/random-points-inside-a-triangle/
function getRandomPointInTriangle (A:Point,B:Point,C:Point):Point {
 
	//P = aA + bB + cC
	//@see http://www.cgafaq.info/wiki/Random_Point_In_Triangle
 
	var a:Number = Math.random();
	var b:Number = Math.random();
 
	if (a + b > 1) {
		a = 1-a;
		b = 1-b;
	}
 
	var c:Number = 1-a-b;
 
	var rndX:Number = (a*A.x)+(b*B.x)+(c*C.x);
	var rndY:Number = (a*A.y)+(b*B.y)+(c*C.y);
 
	return new Point(rndX,rndY);
}