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Add multi-expansion support with data-driven protocol layer

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Replace hardcoded WotLK protocol constants with a data-driven architecture
supporting Classic 1.12.1, TBC 2.4.3, and WotLK 3.3.5a. Each expansion
has JSON profiles for opcodes, update fields, and DBC layouts, plus C++
polymorphic packet parsers for binary format differences (movement flags,
speed fields, transport data, spline format, char enum layout).

Key components:
- ExpansionRegistry: scans Data/expansions/*/expansion.json at startup
- OpcodeTable: logical enum <-> wire values loaded from JSON
- UpdateFieldTable: field indices loaded from JSON per expansion
- DBCLayout: schema-driven DBC field lookups replacing magic numbers
- PacketParsers: WotLK/TBC/Classic parsers with correct flag positions
- Multi-manifest AssetManager: layered manifests with priority ordering
- HDPackManager: overlay texture packs with expansion compatibility
- Auth screen expansion picker replacing hardcoded version dropdown
This commit is contained in:
Kelsi 2026-02-12 22:56:36 -08:00
parent aa16a687c2
commit 7092844b5e
51 changed files with 5258 additions and 887 deletions
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4
src/auth/auth_packets.cpp
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@ -19,8 +19,8 @@ network::Packet LogonChallengePacket::build(const std::string& account, const Cl
network::Packet packet(static_cast<uint16_t>(AuthOpcode::LOGON_CHALLENGE));
// Protocol version (WoW 3.3.5a build 12340 uses protocol version 8)
packet.writeUInt8(0x08);
// Protocol version (e.g. 8 for WoW 3.3.5a build 12340)
packet.writeUInt8(info.protocolVersion);
// Payload size
packet.writeUInt16(payloadSize);