private Position checkPixelCollision(Position a, Position[][] b) {
    for (Position[] p : b) {
      for (Position q : p) {
        if (q.isValidPosition() && a.isValidPosition() && a.getX() != -1 && q.getX() != -1) {

          // a.getX() == q.getX() && a.getY() == q.getY()

          if (a.getX() == q.getX() && a.getY() == q.getY()) {
            return new Position(a.getX(), a.getY());
          }
        }
      }
    }
    return new Position();
  }
  private CollisionInformation checkBitMapCollision(Article b, Article a) {
    CollisionFinder finder = new CollisionFinder(a.getBitMap().getByteArray());
    while (finder.hasNext()) {
      Position p = finder.next();
      if (p.getX() != -1 && p.getY() != -1) {
        CollisionFinder secondArticle = new CollisionFinder(b.getBitMap().getByteArray());
        while (secondArticle.hasNext()) {
          Position q = secondArticle.next();
          if (q.isValidPosition()) {
            if (p.getX() == q.getX() && p.getY() == q.getY()) {
              return new CollisionInformation("Left", true);
            }
          }
        }
        //				for (Position[] q: b.getBitMap().getByteArray()) {
        //					for (Position r: q) {
        //						if (r.getX() != -1 && r.getY() != -1) {
        //
        //							if (p.getX() == r.getX() && p.getY() == r.getY()) {
        ////							if (Math.floor(p.getX()) == Math.floor( r.getX()) && Math.floor(p.getY()) ==
        // Math.floor(r.getY())) {
        //								return new CollisionInformation(getIncidenceDirection(a, r), true);
        //							}
        //						}
        //					}
        //				}
      } else {
      }
    }

    return new CollisionInformation("", false);
    //		for (Position[] p : a.getBitMap().getByteArray()) {
    //			for (Position q : p) {
    //				Position temp = checkPixelCollision(q, b.getBitMap().getByteArray());
    //				if (temp.isValidPosition()) {
    //					return new CollisionInformation(getIncidenceDirection(a, temp), true);
    //				}
    //
    //			}
    //		}
    //		return new CollisionInformation("", false);
  }