AnyTag sections = data.get(LEVEL_SECTIONS);
if (sections.isList()) {
byte[] biomeData = extractBiomeData(data);
byte[] chunkData = new byte[CHUNK_BYTES];
extractChunkData(data, chunkData, new byte[CHUNK_BYTES]);
layer = new BlockLayer(chunkData, biomeData, requestedLayer);
} else {
layer = CorruptLayer.INSTANCE;
}
}