Object Data

This article documents the Data field in the Spawn Entity packet. The field is of type Int, and the meaning of its contents depend on the type of object being spawned, as defined in the Type field of the same packet, and is documented below.

In some cases, the data field has no meaning, but is only used to indicate presence of velocity. In others, it (and velocity) is always ignored.

Item Frame

Value	Orientation
0	Down
1	Up
2	North
3	South
4	West
5	East

You have to set both Orientation and Yaw/Pitch accordingly, otherwise it will not work.

Velocity in the packet is always ignored.

Falling Block

Field name	Field type	Notes
Block state ID	Int	ID of the block state that the falling block will represent.

Velocity in the packet is always ignored.

Fishing Float

Field name	Field type	Notes
Owner	Int	The entity ID of the owner

Velocity in the packet is ignored, and instead should be inferred from the shooter's position.

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	What's the exact algorithm for determining this?

Projectile

Field name	Field type	Notes
Owner ID	Int	The entity ID of the owner