@Override
public void preSnapshot() {
super.preSnapshot();
Long key;
while ((key = this.emptyColumns.poll()) != null) {
int x = IntPairHashed.key1(key);
int z = IntPairHashed.key2(key);
TIntSet column = initializedChunks.get(x, z);
if (column.isEmpty()) {
column = initializedChunks.remove(x, z);
activeChunks.remove(x, z);
session.send(
false, new ChunkDataMessage(x, z, true, null, null, null, true, player.getSession()));
}
}
}
