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feat: add packet palette, data components, and protocol fixes for MC 1.21.2

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Packet Palette (Phase 2.1):
- Create PacketPalette1212.cs with complete ID mapping for protocol 768
  (131 clientbound + 60 serverbound play packets, plus config packets)
- Add new PacketTypesIn enum values: EntityPositionSync, MoveMinecartAlongTrack,
  PlayerRotation, RecipeBookAdd/Remove/Settings, SetCursorItem, SetHeldSlot,
  SetPlayerInventory
- Add new PacketTypesOut enum values: BundleItemSelected, ClientTickEnd
- Update PacketType18Handler routing for 1.21.2

Data Components (Phase 1.4):
- Create StructuredComponentsRegistry1212 with 67 components (was 57 in 1.21)
  reflecting the new 1.21.2 DataComponents ordering
- Implement 11 new component parsers: ConsumableComponent, UseRemainderComponent,
  UseCooldownComponent, DamageResistantComponent, EnchantableComponent,
  EquippableComponent, RepairableComponent, GliderComponent, TooltipStyleComponent,
  DeathProtectionComponent, ItemModelComponent
- Create FoodComponent1212 (simplified: nutrition/saturation/canAlwaysEat only;
  eatSeconds/effects/usingConvertsTo moved to consumable/use_remainder)
- Create SubComponentRegistry1212 and route in StructuredComponentsHandler

Protocol Fixes:
- Fix PlayerPositionAndLook packet for 1.21.2 (new format: teleportId first,
  added deltaMovement Vec3, flags as Int instead of Byte)
- Fix login success packet (remove strictErrorHandling read for >= 1.21.2)
- Fix ClientSettings/ClientInformation packet (add particleStatus VarInt)
- Add SetHeldSlot as alias for HeldItemChange in packet handler

Verified: MCC connects to 1.21.2 vanilla server, stays connected, chat works.
Made-with: Cursor
This commit is contained in:
BruceChen 2026-03-20 03:25:20 +08:00
parent df833ae2a8
commit 57a0dedb33
20 changed files with 953 additions and 33 deletions
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2
MinecraftClient/Protocol/Handlers/StructuredComponents/StructuredComponentsHandler.cs
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@ -21,6 +21,7 @@ public class StructuredComponentsHandler
{
Protocol18Handler.MC_1_20_6_Version => typeof(SubComponentRegistry1206),
Protocol18Handler.MC_1_21_Version => typeof(SubComponentRegistry121),
>= Protocol18Handler.MC_1_21_2_Version => typeof(SubComponentRegistry1212),
_ => throw new NotSupportedException($"Protocol version {protocolVersion} is not supported for subcomponent registries!")
};
@ -32,6 +33,7 @@ public class StructuredComponentsHandler
{
Protocol18Handler.MC_1_20_6_Version => typeof(StructuredComponentsRegistry1206),
Protocol18Handler.MC_1_21_Version => typeof(StructuredComponentsRegistry121),
>= Protocol18Handler.MC_1_21_2_Version => typeof(StructuredComponentsRegistry1212),
_ => throw new NotSupportedException($"Protocol version {protocolVersion} is not supported for structured component registries!")
};