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 entity being spawned, as defined in the Type field of the same packet, and is documented below.

Item Frame

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

The Notchian client clamps invalid values into the valid range through the modulus operator. In the case of negative values, the absolute value is first taken, and then clamped.

Velocity in the packet is always ignored.

Painting

Value	Orientation
2	North
3	South
4	West
5	East

The Notchian client clamps invalid values into the valid range through the modulus operator. In the case of negative values, the absolute value is first taken, and then clamped.

Although the values of 0 and 1 are invalid, the Notchian client uses the same clamping algorithm as Item Frame, which can result in any value from 0 to 5. If this happens, the entity will fail to spawn.

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 Hook

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

If the entity with the Owner ID doesn't exist in the client, the entity will fail to spawn.

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

Warden

If a value of 1 is specified, the Warden will begin in the emerging pose when spawned.

Any other value is silently ignored.