Version 2026.01.15 c04fdfe10 interaction

Interaction Packets

Version: 2026.01.15-c04fdfe10

This category contains 5 packet(s).

Packet Index

ID	Name	Compressed	Max Size
0x122	SyncInteractionChains	No	1.7 GB
0x123	CancelInteractionChain	No	1.0 KB
0x124	PlayInteractionFor	No	16.4 MB
0x125	MountNPC	No	16 bytes
0x126	DismountNPC	No	0 bytes

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SyncInteractionChains

Property	Value
Packet ID	0x122 (290)
Compressed	No
Fixed Block Size	0 bytes
Variable Field Count	1
Max Size	1.7 GB

Fields

Name	Type	Nullable	Max Length
updates	SyncInteractionChain[]	No	4096000

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CancelInteractionChain

Property	Value
Packet ID	0x123 (291)
Compressed	No
Fixed Block Size	5 bytes
Variable Field Count	1
Max Size	1.0 KB
Nullable Bit Field	1 byte(s)

Fields

Name	Type	Nullable	Max Length
chainId	int	No	-
forkedId	ForkedChainId	Yes	-

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PlayInteractionFor

Property	Value
Packet ID	0x124 (292)
Compressed	No
Fixed Block Size	19 bytes
Variable Field Count	2
Max Size	16.4 MB
Nullable Bit Field	1 byte(s)

Fields

Name	Type	Nullable	Max Length
entityId	int	No	-
chainId	int	No	-
forkedId	ForkedChainId	Yes	-
operationIndex	int	No	-
interactionId	int	No	-
interactedItemId	String	Yes	4096000
interactionType	InteractionType	No	-
cancel	boolean	No	-

interactionType enum values:

• 0 = Primary
• 1 = Secondary
• 2 = Ability1
• 3 = Ability2
• 4 = Ability3
• 5 = Use
• 6 = Pick
• 7 = Pickup
• 8 = CollisionEnter
• 9 = CollisionLeave
• 10 = Collision
• 11 = EntityStatEffect
• 12 = SwapTo
• 13 = SwapFrom
• 14 = Death
• 15 = Wielding
• 16 = ProjectileSpawn
• 17 = ProjectileHit
• 18 = ProjectileMiss
• 19 = ProjectileBounce
• 20 = Held
• 21 = HeldOffhand
• 22 = Equipped
• 23 = Dodge
• 24 = GameModeSwap

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MountNPC

Property	Value
Packet ID	0x125 (293)
Compressed	No
Fixed Block Size	16 bytes
Variable Field Count	0
Max Size	16 bytes

Fields

Name	Type	Nullable	Max Length
anchorX	float	No	-
anchorY	float	No	-
anchorZ	float	No	-
entityId	int	No	-

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DismountNPC

Property	Value
Packet ID	0x126 (294)
Compressed	No
Fixed Block Size	0 bytes
Variable Field Count	0
Max Size	0 bytes

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