Player Position

Packet ID	Direction
0x0B	Both

Clientbound

Sent to the client when the player is teleported, but their view-direction is irrelevant.

Field	Type	Description
X	Double	The X position of the player
Y	Double	The Y position of the player
Stance	Double	The stance of the player
Z	Double	The Z position of the player

Serverbound

Sent to the server when the player is moving, but hasn’t changed their viewing direction in a while.

Field	Type	Description
X	Double	The X position of the player
Y	Double	The Y position of the player
Stance	Double	The stance of the player
Z	Double	The Z position of the player
On Ground	Boolean	0 for walking/swimming, 1 for jumping/falling

Example Packets

Clientbound

Field	Value
X	5669.064
Y	68.4
Stance	0.62
Z	-5325.32

Serverbound

Field	Value
X	5669.064
Y	68.4
Stance	0.62
Z	-5325.32
On Ground	1