0x1C S1CPacketEntityMetadata

Updates an entity's DataWatcher metadata (health, skin, flags, name, etc.).

Clientbound (Server → Client) · PLAY · net/minecraft/network/play/server/S1CPacketEntityMetadata.java
entitymetadatadata

Fields

FieldTypeDescription
entityIdVarIntEntity ID
metadataDataWatcherSerialized metadata entries

Wire Encoding

FieldTypeNotes
Entity IDVarInt
MetadataDataWatcherSerialized key-value pairs

MCP References

MCPNetHandlerPlayClient.handleEntityMetadata()

Handler Interface

HNDINetHandlerPlayClient

Notes

S1C carries changed or new DataWatcher entries for an entity. Metadata indexes: 0=flags (onFire/sneaking/riding/sprinting/flying), 1=airTicks, 2=nameTag, 3=nameVisible, 6=health (for living), 15/variant, 16/color (for horses), etc.

implementation Implementation Cases

ESP (Sigma 3.9)

Track entity metadata (name tags, visibility, flags) for ESP and bot detection.

Vanilla hook: EventReceivePacket
NameTags (Sigma 3.9)

Track entity metadata (name tags, visibility, flags) for ESP and bot detection.

Vanilla hook: EventReceivePacket
AntiBot (Sigma 3.9)

Track entity metadata (name tags, visibility, flags) for ESP and bot detection.

Vanilla hook: EventReceivePacket
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