getVertices method
Implementation
void getVertices(List<Vector2> argRay) {
argRay[0].setFrom(lowerBound);
argRay[1].setFrom(lowerBound);
argRay[1].x += upperBound.x - lowerBound.x;
argRay[2].setFrom(upperBound);
argRay[3].setFrom(upperBound);
argRay[3].x -= upperBound.x - lowerBound.x;
}