Difference between revisions of "Pre-release protocol"
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Revision as of 06:06, 11 March 2016
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Under construction
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This page documents the changes from the last stable Minecraft release (currently 1.9, protocol 107) to the current pre-release (currently 1.9.1-pre2, protocol 108). Note that this page contains bleeding-edge information that may not be completely or correctly documented.
One who wishes to commandeer the merging of this into Protocol when an update is made must be sure to respect any changes that may have occurred to the respective packets there.
Contents
Data types
No changes so far.
Packets
| ID | Packet name | Documentation | |
|---|---|---|---|
| Handshaking serverbound | |||
| 0x00 | Handshake | Current | Pre |
| Play clientbound | |||
| 0x23 | Join Game | Current | Pre |
New/modified data types
None so far.
Handshaking
Clientbound
No changes so far.
Serverbound
Handshake
This causes the server to switch into the target state.
| Packet ID | State | Bound To | Field Name | Field Type | Notes |
|---|---|---|---|---|---|
| 0x00 | Handshaking | Server | Protocol Version | VarInt | See protocol version numbers (currently |
| Server Address | String | hostname or IP, e.g. localhost or 127.0.0.1 (does this support IPv6?) | |||
| Server Port | Unsigned Short | default is 25565 | |||
| Next State | VarInt Enum | 1 for status, 2 for login |
Play
Clientbound
Join Game
See Protocol Encryption for information on logging in.
| Packet ID | State | Bound To | Field Name | Field Type | Notes |
|---|---|---|---|---|---|
| 0x23 | Play | Client | Entity ID | Int | The player's Entity ID (EID) |
| Gamemode | Unsigned Byte | 0: Survival, 1: Creative, 2: Adventure, 3: Spectator. Bit 3 (0x8) is the hardcore flag. | |||
| Dimension | -1: Nether, 0: Overworld, 1: End | ||||
| Difficulty | Unsigned Byte | 0: peaceful, 1: easy, 2: normal, 3: hard | |||
| Max Players | Unsigned Byte | Used by the client to draw the player list | |||
| Level Type | String | default, flat, largeBiomes, amplified, default_1_1 | |||
| Reduced Debug Info | Boolean | If true, a Notchian client shows reduced information on the debug screen. |
Serverbound
No changes so far.
Status
Clientbound
No changes so far.
Serverbound
No changes so far.
Login
Clientbound
No changes so far.
Serverbound
No changes so far.
