public static Blockade hasIntersectionWithBlockades(Pair<Integer, Integer> point, Area a) {
double size = ReachablityConstants.AGENT_WIDTH * 1 * 6;
if (!(a instanceof Road)) return null;
Road road = (Road) a;
if (!road.isBlockadesDefined()) return null;
if (road.getBlockades().size() == 0) return null;
Ellipse2D.Double expandHuman =
new Ellipse2D.Double(a.getX() - size / 2, a.getY() - size / 2, size, size);
java.awt.geom.Area area = new java.awt.geom.Area(expandHuman);
for (Blockade b : road.getBlockades()) {
area.intersect(new java.awt.geom.Area(b.getShape()));
if (!area.isEmpty()) return b;
}
return null;
}
