//EXPREGEN
	@EventHandler
	public void onbreako1(BlockBreakEvent e) {
		ArrayList<Location> arraylocexp = new ArrayList<Location>();

		if(e.getBlock().getType() == Material.BOOKSHELF) {

			//x ,y, z kleine zahlen
			Location eckpunkt1 = new Location(Bukkit.getWorld("world"), 33, 90, 297);
			//x ,y, z große zahl
			Location eckpunkt2 = new Location(Bukkit.getWorld("world"), 71, 120, 326);

			for(int x = eckpunkt1.getBlockX(); x < eckpunkt2.getBlockX();x++) {

				for(int y = eckpunkt1.getBlockY(); y < eckpunkt2.getBlockY();y++) {

				for(int z = eckpunkt1.getBlockZ(); z < eckpunkt2.getBlockZ();z++) {

					Location loc = new Location(Bukkit.getWorld("world"), x, y, z).add(0.5, 0, 0.5);
					arraylocexp.add(loc);
					}
				}
			}
			//anzahl der drops festlegen!! abhäng von userzahlen ?!
			for(int i = 0;i<30;i++) {
			Random r=new Random();
			int randomNumber=r.nextInt(arraylocexp.size());

			Location randloc = arraylocexp.get(randomNumber);

			ExperienceOrb orb = (ExperienceOrb) Bukkit.getWorld("world").spawnEntity(randloc, EntityType.EXPERIENCE_ORB);
			orb.setExperience(new Random().nextInt(5));
			}
		}

	}