3D Multi Test

This project is a Minecraft clone in OpenGL/WebGL using a custom network protocol

Clients

Kotlin client (OpenGL)

The kotlin client is deprecated and not up to date, check this client instead

JavaScript client (WebGL)

The JavaScript client is not up to date

Current Protocol

Client bound

Identification: 0x00

id	entityId
byte	int

Add Entity: 0x01

id	entityId	x	y	z	yaw	pitch	name
byte	int	float	float	float	float	float	byte[64]

Remove Entity: 0x02

id	entityId
byte	int

Update Entity Position: 0x03

id	entityId	x	y	z	yaw	pitch
byte	int	float	float	float	float	float

Send Chunk: 0x04

id	x	y	z	BlockType
byte	int	int	int	byte[4096]

Send Mono Type Chunk: 0x05

id	x	y	z	BlockType
byte	int	int	int	byte

Chat: 0x06

id	message
byte	byte[4096]

Update Entity Metadata: 0x07

id	entityId	name
byte	int	byte[64]

Server bound

Update Entity: 0x00

id	x	y	z	yaw	pitch
byte	float	float	float	float	float

Update Block: 0x01

id	BlockType	x	y	z
byte	byte	int	int	int

Block Bulk Edit: 0x02

id	blockCount	BlockType	x	y	z	BlockType	x	y	z	...
byte	Int	byte	int	int	int	byte	int	int	int	...

Chat: 0x03

id	message
byte	byte[4096]

Client metadata: 0x04

id	renderDistance	name
byte	byte	byte[64]

BlockType

id	Name
0	Air
1	Grass
2	Dirt
3	Stone
4	Oak Log
5	Oak Leaves
6	Glass
7	Water
8	Sand

Information

• Packets Server bound [0x00] check the client entityId. Client must save the entityId received by the packet Client Bound 0x00 upon connecting to the server. Without this ID client won't be able to move
• This protocol uses BIG ENDIAN
• Server doesn't send empty chunk

Intended way to read data

First read the first byte to determine which packet you received. Then read the rest of the data