Difference between revisions of "Pre-release protocol"
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Line 135: | Line 135: | ||
|- class="row8" | |- class="row8" | ||
| class="col0 centeralign" | World height | | class="col0 centeralign" | World height | ||
− | | class="col1 centeralign" | | + | | class="col1 centeralign" | int |
− | | class="col2 centeralign" | <code> | + | | class="col2 centeralign" | <code>256</code> |
− | | class="col3" | Defaults to <code> | + | | class="col3" | Defaults to <code>256</code> |
|- class="row9" | |- class="row9" | ||
| class="col0 centeralign" | Max players | | class="col0 centeralign" | Max players | ||
Line 147: | Line 147: | ||
| class="col1 rightalign" colspan="4" | 28 bytes + length of strings | | class="col1 rightalign" colspan="4" | 28 bytes + length of strings | ||
|} | |} | ||
+ | |||
+ | TODO: Figure out other packets | ||
=== [[Protocol#Handshake_.280x02.29|Handshake (0x02)]] === | === [[Protocol#Handshake_.280x02.29|Handshake (0x02)]] === | ||
Line 169: | Line 171: | ||
| class="col1 rightalign" colspan="4" | 3 bytes + length of strings | | class="col1 rightalign" colspan="4" | 3 bytes + length of strings | ||
|} | |} | ||
− | |||
− | |||
=== [[Protocol#Mob_Spawn_.280x18.29|Mob Spawn (0x18)]] === | === [[Protocol#Mob_Spawn_.280x18.29|Mob Spawn (0x18)]] === |
Revision as of 11:35, 15 February 2012
This page documents the changes from the last stable Minecraft release (currently 1.1) to the current pre-release
Contents
New packets
Entity Head Look (0x23)
Changes the direction an entity's head is facing.
Packet ID | Field Name | Field Type | Example | Notes |
---|---|---|---|---|
0x23 | Entity ID | int | ||
Head Yaw | byte | Head yaw in steps of 2π/256 | ||
Total Size: | 6 bytes |
Update Tile Entity (0x84)
Essentially a block update on a tile entity.
Packet ID | Field Name | Field Type | Example | Notes |
---|---|---|---|---|
0x84 | X | int | ||
Y | short | |||
Z | int | |||
Action | byte | The type of update to perform | ||
Custom 1 | int | Varies | ||
Custom 2 | int | Varies | ||
Custom 3 | int | Varies | ||
Total Size: | 24 bytes |
Actions
- 1: Set mob displayed inside a mob spawner. Custom 1 contains the mob type
Changed packets
Login Request (0x01)
World height was changed to an integer.
Packet ID | Field Name | Field Type | Example | Notes |
---|---|---|---|---|
0x01 | Entity ID | int | 1298
|
The Players Entity ID |
Not used | string | (empty string) | Not used | |
Map Seed | long | 971768181197178410
|
The server's map seed. Must be sent in respawn packets by the client. | |
Level Type | string | DEFAULT | DEFAULT or SUPERFLAT; level-type in server.properties | |
Server mode | int | 0
|
0 for survival, 1 for creative | |
Dimension | byte | 0
|
-1 : The Nether, 0 : The Overworld, 1 : The End
| |
Difficulty | byte | 1
|
0 thru 3 for Peaceful, Easy, Normal, Hard
| |
World height | int | 256
|
Defaults to 256
| |
Max players | unsigned byte | 8
|
Used by the client to draw the player list | |
Total Size: | 28 bytes + length of strings |
TODO: Figure out other packets
Handshake (0x02)
Client to Server
The hostname and port were added to this packet, most likely to allow virtual hosting .(sample implementation)
Packet ID | Field Name | Field Type | Example | Notes |
---|---|---|---|---|
0x02 | UsernameAndHost | string | TkTech;localhost:25565
|
The username of the player attempting to connect, and the host he is connecting to, seperated by a semicolon. |
Total Size: | 3 bytes + length of strings |
Mob Spawn (0x18)
New byte field: head yaw
This needs confirmation!
Packet ID | Field Name | Field Type | Example | Notes |
---|---|---|---|---|
0x18 | EID | int | 446
|
Entity ID |
Type | byte | 91
|
The type of mob. See Entities#Mobs | |
X | int | 13366
|
The Absolute Integer X Position of the object | |
Y | int | 2176
|
The Absolute Integer Y Position of the object | |
Z | int | 1680
|
The Absolute Integer Z Position of the object | |
Yaw | byte | -27
|
The yaw in steps of 2π/256 | |
Pitch | byte | 0
|
The pitch in steps of 2π/256 | |
Head Yaw | byte | Head yaw in steps of 2π/256 | ||
Metadata | Metadata | 127
|
Varies by mob, see Entities | |
Total Size: | 21 bytes + Metadata (at least 1) |
Other changes
Protocol version is now 27.
Protocol History
2012-02-15
- 12w07a
- Protocol version is now 27
- Updated packets: 0x01, 0x09, 0x33
2012-02-09
- 12w06a
- Protocol version is now 25
- New packet: 0x84
2012-01-26
- 12w04a
- Protocol version has not been changed
- Handshake Packet by client (0x02) now contains the server host and port
- Window Open Packet (0x64): WindowTitle is now longer than accepted by older clients. Contains a keyword such as "container.furnace"
2012-01-19
- 12w03a
- Protocol version is now 24
- New packet: 0x23
- MobSpawn: new field, 1 byte inserted before metadata.