Get chunk grid based on a central chunk/location

ChunkGrid.Java

    public Collection<Chunk> getNearbyChunksGrid(Location location) {
        val offset = new int[]{-1, 0, 1};

        val world = location.getWorld();
        val baseX = location.getChunk().getX();
        val baseZ = location.getChunk().getZ();

        val chunksAroundPlayer = new HashSet<Chunk>();
        for (val x : offset) {
            for (val z : offset) {
                val chunk = world.getChunkAt(baseX + x, baseZ + z);
                chunksAroundPlayer.add(chunk);
            }
        }

        return chunksAroundPlayer;
    }

Get all chunks around a main chunk (like this):

X- Chunks around
Y- Chunk of location from parameter of the method

X X X
X Y X
X X X

This is util to avoid using nearbyEntities and for in all players with a distancesquared check.