Beispiel #1
0
 private Point isMoreClose(int x, int y, Point closestPoint, Point[] intersectionPoints) {
   double clothestDistance =
       closestPoint != null
           ? Math.sqrt(Math.pow(x - closestPoint.getX(), 2) + Math.pow(y - closestPoint.getY(), 2))
           : -1;
   Point selectedPoint = null;
   for (Point point : intersectionPoints) {
     if (point == null) {
       continue;
     }
     double distance = Math.sqrt(Math.pow(x - point.getX(), 2) + Math.pow(y - point.getY(), 2));
     if (distance < clothestDistance || clothestDistance == -1) {
       clothestDistance = distance;
       selectedPoint = point;
     }
   }
   return selectedPoint;
 }
Beispiel #2
0
  private synchronized void calculateInstantImpacts(
      Person shooter, Projectile projectile, Room room) {

    double xStart = projectile.getxStart();
    double yStart = projectile.getyStart();

    Person closestPerson = null;
    Point closestPoint = null;

    for (AbstractZone zone : room.getMap().getZones()) {
      if (zone.isShootable()) {
        continue;
      }
      Bounds zoneBounds = GeometryService.getRectangle(zone);
      Point[] zoneIntersection =
          LineService.lineBoundsIntersections(
              new Line(
                  new Point(shooter.getX(), shooter.getY()),
                  new Point(projectile.getxEnd(), projectile.getyEnd())),
              zoneBounds);
      Point closest =
          isMoreClose(
              (int) projectile.getxStart(),
              (int) projectile.getyStart(),
              new Point(projectile.getxEnd(), projectile.getyEnd()),
              zoneIntersection);
      if (closest != null) {
        closestPoint = closest;
        projectile.setxEnd((int) closest.getX());
        projectile.setyEnd((int) closest.getY());
      }
    }

    for (Person person : room.getPersons().values()) {
      Point linePointB = new Point((double) projectile.getxEnd(), (double) projectile.getyEnd());
      Point[] intersectionPoints =
          LineService.lineIntersectCircle(
              new Line(new Point(xStart, yStart), linePointB),
              new Circle(person.getX(), person.getY(), PersonWebSocketEndpoint.PERSON_RADIUS));

      if (shooter == person) {
        projectile.setxStart((int) intersectionPoints[0].getX());
        projectile.setyStart((int) intersectionPoints[0].getY());
        continue;
      }

      if (intersectionPoints != null && intersectionPoints.length > 0) {
        Point closest =
            isMoreClose(
                (int) shooter.getX(), (int) shooter.getY(), closestPoint, intersectionPoints);
        if (closest != null) {
          if (projectile.isPiercing()) {
            onDamage(shooter, projectile.getDamage(), person, room);
          } else {
            closestPoint = closest;
            closestPerson = person;
          }
        }
      }
    }

    if (closestPerson != null) {
      onDamage(shooter, projectile.getDamage(), closestPerson, room);
    }
    if (closestPoint != null) {
      projectile.setxEnd((int) closestPoint.getX());
      projectile.setyEnd((int) closestPoint.getY());
    }
  }