Code: 4
Payload:
- 0 entity state of the player as seen by the client
-Length: 64
+ 0 player's entity state as predicted by the client
+ 64 movement input, 3x 16bit signed int, each component mapped from [-1,1] to [-32767,32767]
+ 70 pitch input, 16bit signed int, mapped from [-PI/2,PI/2] to [-32767,32767]
+ 72 yaw input, 16bit signed int, mapped from [-PI,PI] to [-32767,32767]
+ 74 active actions, 8bit bit field, first three bits are primary, secondary, and tertiary
+ 75 selected inventory slot, 8bit unsigned int
+Length: 76
Spawn Entity
96 flags, 32bit bitfield with boolean values
1: world collision
100 entity name, max 32 byte UTF-8 string
-Length: 132
+Length: 100 - 132
Despawn Entity
4 entity ID, 32bit unsigned int
8 entity state
72 next entity...
-Length: 4 + multiple of 68, max 452
+Length: 4 + multiple of 68, max 480
Player Correction
8 block size, size of the data block, 32bit unsigned int
12 data, raw data
Length: 12-484
+
+
+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