[1.9]Restricting amount of blocks in a chunk

Hey all!

So, Im trying to make it so only a certain amount of locations can be in a chunk. I removed most of the code, and only left the meaty parts of it so you don't need to look through all of it for 10 min.

Code (Text):

public ArrayList < Location > GeneratorLocations = new ArrayList < Location > ();

@EventHandler
public void onsSpawnerPlace(BlockPlaceEvent event) {
Player player = event.getPlayer();
if (event.getBlock().getType() == Material.IRON_BLOCK && player.getInventory().getItemInHand().getItemMeta().getDisplayName().equals("Generator!")) {

//there would be a if statement checking if there more then,
// lets say 10 gens in one chunk, and if so, return it.

  GeneratorLocations.add(event.getBlock().getLocation());
}
}

So here is what I have. Additions/and or tips and greatly welcomed!

 

I have that, I just didn't feel people would need to know for the problem, but thanks for telling me!

 

Bumpy-Bumpy eggs and bumpy!

 

I got this, based off other posts with a similar problem:

Code (Text):

public ArrayList < Location > GeneratorLocations = new ArrayList < Location > ();
int amountofgenchunk = 0;

@EventHandler
public void onBlockPlace(BlockPlaceEvent event) {
Chunk chunk = player.getLocation().getChunk();
for (int x = 0; x <= 15; x++) {
  for (int y = 0; y <= 256; y++) {
   for (int z = 0; z <= 15; z++) {
    for (Location location1: GeneratorLocations) {
     if (chunk.getBlock(x, y, z).getLocation().equals(location1)) {
      amountofgenchunk++;
      }
     }
    }
   }
}
}

 

Thanks @DevLeeo ! This worked perfectly. For anyone looking for this also:

Code (Text):

 private Set<Location> generators = new HashSet<>();

  @EventHandler
  public void onBlockPlace(BlockPlaceEvent event) {
    Block toPlace = event.getBlock();
    Player player = event.getPlayer();

    if (toPlace.getType() != Material.IRON_BLOCK || !player.getInventory().getItemInHand().getItemMeta().getDisplayName().equals("Generator!")) {
      return;
    }

    Chunk chunk = toPlace.getLocation().getChunk();
    int count = 0;

    x:
    for (int x = 0; x <= 15; x++) {
      for (int y = 0; y <= 256; y++) {
        for (int z = 0; z <= 15; z++) {
          Block b = chunk.getBlock(x, y, z);
   
          if (b.getType() == Material.IRON_BLOCK && generators.contains(b.getLocation())) {
            count ++;
            if (count >= 10) { // Found 10 generators, dont need to check anymore.
              break x;
            }
          }
        }
      }
    }

    if (count >= 10) {
      player.sendMessage("10 generators");
      event.setCancelled(true);
    } else {
      generators.add(toPlace.getLocation());
    }
  }

SOLVED

PS: I know this is a copy of DevLeoo code(Thanks once again!), but most people just scroll down to the bottom, and if they don't see code, they find a new post.