S0CPacketSpawnPlayer — Minecraft 1.8.9 Packet Reference

0x0C S0CPacketSpawnPlayer

Spawns another player entity in the world with UUID, position (fixed-point int × 32), rotation (byte × 256/360), held item, and metadata.

Clientbound (Server → Client) · PLAY · net/minecraft/network/play/server/S0CPacketSpawnPlayer.java

playerentityspawn

Fields

Field	Type	Description
entityId	VarInt	Entity ID for this player
playerId	UUID	Player UUID
x/y/z	fixed-point int	Position × 32
yaw/pitch	byte	Rotation × 256/360
currentItem	short	Item ID in hand
metadata	DataWatcher	Player metadata (skin, cape, etc.)

Wire Encoding

Field	Type	Notes
Entity ID	VarInt
Player UUID	UUID	Most Sig + Least Sig bits
X	Int	x * 32
Y	Int	y * 32
Z	Int	z * 32
Yaw	byte	yaw * 256 / 360
Pitch	byte	pitch * 256 / 360
Current Item	short	Block/item ID (0 = empty)
Metadata	DataWatcher	Entity data watcher

MCP References

MCPNetHandlerPlayClient.handleSpawnPlayer()

Handler Interface

HNDINetHandlerPlayClient

Notes

This is received when another player enters the client's render distance. ESP modules add the entity to their target list. AntiBot modules check the UUID against tab list entries.

implementation Implementation Cases

ESP (Sigma 3.9, Tenacity 6.0)

Detect player spawns for ESP targets and bot filtering. AntiBot checks spawn data for fake players.

if (event.getPacket() instanceof S0CPacketSpawnPlayer) {
  S0CPacketSpawnPlayer s0c = (S0CPacketSpawnPlayer) event.getPacket();
  if (isValidPlayer(s0c)) targetList.add(s0c.getEntityID());
}

Vanilla hook: EventReceivePacket

NameTags (Sigma 3.9, Tenacity 6.0)

Detect player spawns for ESP targets and bot filtering. AntiBot checks spawn data for fake players.

if (event.getPacket() instanceof S0CPacketSpawnPlayer) {
  S0CPacketSpawnPlayer s0c = (S0CPacketSpawnPlayer) event.getPacket();
  if (isValidPlayer(s0c)) targetList.add(s0c.getEntityID());
}

Vanilla hook: EventReceivePacket

AntiBot (Sigma 3.9, Tenacity 6.0)

Detect player spawns for ESP targets and bot filtering. AntiBot checks spawn data for fake players.

if (event.getPacket() instanceof S0CPacketSpawnPlayer) {
  S0CPacketSpawnPlayer s0c = (S0CPacketSpawnPlayer) event.getPacket();
  if (isValidPlayer(s0c)) targetList.add(s0c.getEntityID());
}

Vanilla hook: EventReceivePacket

Teams (Sigma 3.9, Tenacity 6.0)

Detect player spawns for ESP targets and bot filtering. AntiBot checks spawn data for fake players.

if (event.getPacket() instanceof S0CPacketSpawnPlayer) {
  S0CPacketSpawnPlayer s0c = (S0CPacketSpawnPlayer) event.getPacket();
  if (isValidPlayer(s0c)) targetList.add(s0c.getEntityID());
}

Vanilla hook: EventReceivePacket

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