AOS REVIVALJoin Discord

Packet ID0210x15

Entities // wire record

CreateEntity

Creates a map entity, light, deployable, pickup, or projectile. I and F are the integer- and fixed-property counts carried inside the record.

S→CSentLive-verified34 + 4I + 2F bytes

Exact field order

Packet 21 wire layout

The first byte is the application packet ID. The rows after it appear in decode order. Sizes exclude ENet headers, the outer wrapper prefix, LZF chunk framing, and compression effects.

Packet 21 CreateEntity fields in byte order
#	Field	Encoding	Bytes	Purpose
0	`packet_id`	u8	1	Always `21` (0x15).
1	`entity_id`	i16 LE	2	Scene-local entity identifier.
2	`entity_type`	u8	1	entity type value.
3	`state`	u8	1	Entity or gameplay state value.
4	`player_id`	i8	1	Owning player, using the retail sentinel where applicable.
5	`position`	3 × fixed16 LE	6	X, Y, and Z components at 1/64-unit precision.
6	`velocity`	3 × fixed16 LE	6	X, Y, and Z components at 1/64-unit precision.
7	`yaw`	sign-magnitude fixed16 LE (1/64)	2	yaw value.
8	`color_r`	sign-magnitude fixed16 LE (1/64)	2	color r value.
9	`color_g`	sign-magnitude fixed16 LE (1/64)	2	color g value.
10	`color_b`	sign-magnitude fixed16 LE (1/64)	2	color b value.
11	`radius`	sign-magnitude fixed16 LE (1/64)	2	radius value.
12	`face`	u8	1	Voxel face or placement orientation index.
13	`fuse`	sign-magnitude fixed16 LE (1/64)	2	fuse value.
14	`int_property_count`	u8	1	I: number of 4-byte integer properties.
15	`float_property_count`	u8	1	F: number of fixed16 properties.
16	`ugc_mode`	u8	1	ugc mode value.
17	`int_properties[]`	I × i32 LE	4I	Entity-type-specific integer properties.
18	`float_properties[]`	F × fixed16 LE	2F	Entity-type-specific scalar properties.

Protocol convention

How to read this layout

LE means least-significant byte first.
fixed16 is two-byte sign-magnitude at 1/64 precision.
orientation16 uses the measured 1/8192 orientation mapping.
NUL strings consume their encoded byte length plus one 00 terminator.
Counted arrays repeat immediately in the order shown.