if (getChild(i).hasCollision(scene, checkTriangles)) { return false; }
if (getChild(i).hasCollision(scene, checkTriangles)) { return true; }
    public boolean hasCollision(Spatial scene, boolean checkTriangles) {        if (getWorldBound().intersects(scene.getWorldBound())) {            //further checking needed.            for (int i = 0; i < getQuantity(); i++) {                if (getChild(i).hasCollision(scene, checkTriangles)) { return false; }            }        }        return false;    }