CLASS bwm net/minecraft/world/chunk/storage/RegionFile
	CLASS bwm$a net/minecraft/world/chunk/storage/RegionFile$ChunkBuffer
		FIELD b pos Lbfl;
	FIELD a EMPTY_SECTOR [B
	FIELD b file Ljava/io/RandomAccessFile;
	FIELD c offsets [I
	FIELD d chunkTimestamps [I
	FIELD e sectorFree Ljava/util/List;
	METHOD a write (I[BI)V
		ARG 1 sectorNumber
		ARG 2 data
	METHOD a getChunkDataInputStream (Lbfl;)Ljava/io/DataInputStream;
		ARG 1 pos
	METHOD a setOffset (Lbfl;I)V
	METHOD a write (Lbfl;[BI)V
	METHOD b isChunkPresent (Lbfl;)Z
		ARG 1 pos
	METHOD b setTimestamp (Lbfl;I)V
	METHOD c getChunkDataOutputStream (Lbfl;)Ljava/io/DataOutputStream;
	METHOD d hasChunk (Lbfl;)Z
		ARG 1 pos
	METHOD e getOffset (Lbfl;)I
		ARG 1 pos
	METHOD f getPackedRegionRelativePosition (Lbfl;)I
		ARG 1 pos