Protocol for r/21_u3 NetworkProtocolVersion 729

[chrisspyropoulos]

Minecraft Network Protocol Docs 08/20/2024

For r21u3, Network Protocol Version 729

Changes since r21u2, version 712.

New Packets

CameraAimAssist:

• Added mViewAngle (Vec2)
• Added mDistance (float)
• Added mTargetMode (enum CameraAimAssist::TargetMode)
• Added mAction (enum CameraAimAssist::Action)

ContainerRegistryCleanup:

• Added mRemovedContainers (std::vector)

Packet Changes

EmotePacket:

• Added mEmoteTicks (uint32_t)

InventoryContentPacket:

• Added mFullContainerName (FullContainerName)
• Added mDynamicContainerSize (uint32_t)
• Removed mDynamicContainerId (uint32_t)

InventorySlotPacket:

• Added mFullContainerName (FullContainerName)
• Added mDynamicContainerSize (uint32_t)
• Removed mDynamicContainerId (uint32_t)

ResourcePacksInfoPacket:

• Removed mHasExceptions (bool)
• Removed mForceServerPacksEnabled (bool)
• Removed mBehaviorPacks (std::vector)

TransferPacket:

• Added mReloadWorld (bool)

UpdateAttributesPacket:

• Added mDefaultMinValue (float)
• Added mDefaultMaxValue (float)

Additional Types Added

std::optional

Additional Types Changed

CameraPreset:

• Added mCameraRotationSpeed (brstd::optional)
• Added mSnapToTarget (brstd::optional)
• Added mEntityOffset (std::optional)

FullContainerName:

• Added mDynamicId (brstd::optional<uint32_t>)
• Removed mDynamicId (DynamicId)

New Enums

CameraAimAssistPacket::Action:

• Added Set(0)
• Added Clear(1)

CameraAimAssistPacket::TargetMode:

• Added Angle(0)
• Added Distance(1)

Enum Changes

ActorDamageCause:

• Added MaceSmash(34)
• Displaced All

Connection::DisconnectFailReason:

• Added DeepLinkTryingToOpenDemoWorldWhileSignedIn(117)

ContainerID:

• Added CONTAINER_ID_REGISTRY(125)
• Added CONTAINER_ID_REGISTRY_INVENTORY(126)

Enchant::Type:

• Enum names have changed, but not necessarily their behavior.
• Added Protection(0)
• Added FireProtection(1)
• Added FeatherFalling(2)
• Added BlastProtection(3)
• Added ProjectileProtection(4)
• Added Thorns(5)
• Added Respiration(6)
• Added DepthStrider(7)
• Added AquaAffinity(8)
• Added Sharpness(9)
• Added Smite(10)
• Added BaneOfArthropods(11)
• Added Knockback(12)
• Added FireAspect(13)
• Added Looting(14)
• Added Efficiency(15)
• Added SilkTouch(16)
• Added Unbreaking(17)
• Added Fortune(18)
• Added Power(19)
• Added Punch(20)
• Added Flame(21)
• Added Infinity(22)
• Added LuckOfTheSea(23)
• Added Lure(24)
• Added CurseOfBinding(27)
• Added CurseOfVanishing(28)
• Added Impaling(29)
• Added Riptide(30)
• Added Loyalty(31)
• Added Channeling(32)
• Added Multishot(33)
• Added Piercing(34)
• Added QuickCharge(35)
• Removed ArmorAll
• Removed ArmorFire
• Removed ArmorFall
• Removed ArmorExplosive
• Removed ArmorProjectile
• Removed ArmorThorns
• Removed WaterBreath
• Removed WaterSpeed
• Removed WaterAffinity
• Removed WeaponDamage
• Removed WeaponUndead
• Removed WeaponArthropod
• Removed WeaponKnockback
• Removed WeaponFire
• Removed WeaponLoot
• Removed MiningEfficiency
• Removed MiningSilkTouch
• Removed MiningDurability
• Removed MiningLoot
• Removed BowDamage
• Removed BowKnockback
• Removed BowFire
• Removed BowInfinity
• Removed FishingLoot
• Removed FishingLure
• Removed CurseBinding
• Removed CurseVanishing
• Removed TridentImpaling
• Removed TridentRiptide
• Removed TridentLoyalty
• Removed TridentChanneling
• Removed CrossbowMultishot
• Removed CrossbowPiercing
• Removed CrossbowQuickCharge

MinecraftPacketIds:

• Added CameraAimAssist(316)
• Added ContainerRegistryCleanup(317)
• Displaced EndId

PlayerActionType:

• Added DEPRECATED_StartSpinAttack(23)
• Removed StartSpinAttack

PlayerAuthInputPacket::InputData:

• Added HorizontalCollision(49)
• Added VerticalCollision(50)
• Added DownLeft(51)
• Added DownRight(52)
• Displaced INPUT_NUM

Rotation:

• Added Clockwise90(Rotate90)
• Added Clockwise180(Rotate180)
• Added CounterClockwise90(Rotate270)

[smell-of-curry]

Can we get docs for Item Stack Net Manager? #5

[yshroff-dev]

@smell-of-curry : We put in a request to get this system documented, will hopefully have an update soon.

[theaddonn]

Also... quite funny how this is like the 7th std::optional type now XD

[oswaldolb]

Approved for merging after updating the README with this branch's version.