+
+
+Block Update
+------------
+
+Sent by the server whenever one or more block in a chunk have changed.
+
+Code: 11
+Payload:
+ 0 chunk coordinates, vec3i
+ 12 number of blocks, 32bit unsigned int, 1-78
+ 16 first block index, 16bit unsigned int
+ 18 first block data, 32bit
+ 22 second block index...
+Length: 16 + multiple of 6, max 484