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0a6f88e8ad
TBC 2.4.3 SMSG_SPELL_START and SMSG_SPELL_GO send full uint64 GUIDs for casterGuid/casterUnit and hit targets. WotLK uses packed (variable-length) GUIDs. Using readPackedGuid() on a full uint64 reads the first byte as the bitmask, consuming 1-8 wrong bytes, which shifts all subsequent fields (spellId, castFlags, castTime) and causes: - Cast bar to never show for the player's own spells - Sound effects to use the wrong spell ID - Hit/miss target tracking to be completely wrong Additionally, TBC SMSG_SPELL_GO lacks the WotLK timestamp field after castFlags. Add TbcPacketParsers::parseSpellStart and ::parseSpellGo using full GUIDs, add virtual base methods, and route both handlers through virtual dispatch.
432 lines
19 KiB
C++
432 lines
19 KiB
C++
#pragma once
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#include "game/world_packets.hpp"
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#include <memory>
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#include <string>
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namespace wowee {
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namespace game {
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/**
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* PacketParsers - Polymorphic interface for expansion-specific packet parsing.
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*
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* Binary packet formats differ significantly between WoW expansions
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* (movement flags, update fields, character enum layout, etc.).
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* Each expansion implements this interface with its specific parsing logic.
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*
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* The base PacketParsers delegates to the existing static parser classes
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* in world_packets.hpp. Expansion subclasses override the methods that
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* differ from WotLK.
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*/
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class PacketParsers {
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public:
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virtual ~PacketParsers() = default;
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// Size of MovementInfo.flags2 in bytes for MSG_MOVE_* payloads.
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// Classic: none, TBC: u8, WotLK: u16.
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virtual uint8_t movementFlags2Size() const { return 2; }
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// --- Movement ---
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/** Parse movement block from SMSG_UPDATE_OBJECT */
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virtual bool parseMovementBlock(network::Packet& packet, UpdateBlock& block) {
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return UpdateObjectParser::parseMovementBlock(packet, block);
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}
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/** Write movement payload for CMSG_MOVE_* packets */
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virtual void writeMovementPayload(network::Packet& packet, const MovementInfo& info) {
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MovementPacket::writeMovementPayload(packet, info);
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}
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/** Build a complete movement packet with packed GUID + payload */
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virtual network::Packet buildMovementPacket(LogicalOpcode opcode,
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const MovementInfo& info,
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uint64_t playerGuid = 0) {
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return MovementPacket::build(opcode, info, playerGuid);
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}
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/** Build CMSG_CAST_SPELL (WotLK default: castCount + spellId + castFlags + targets) */
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virtual network::Packet buildCastSpell(uint32_t spellId, uint64_t targetGuid, uint8_t castCount) {
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return CastSpellPacket::build(spellId, targetGuid, castCount);
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}
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/** Build CMSG_USE_ITEM (WotLK default: bag + slot + castCount + spellId + itemGuid + glyphIndex + castFlags + targets) */
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virtual network::Packet buildUseItem(uint8_t bagIndex, uint8_t slotIndex, uint64_t itemGuid, uint32_t spellId = 0) {
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return UseItemPacket::build(bagIndex, slotIndex, itemGuid, spellId);
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}
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// --- Character Enumeration ---
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/** Parse SMSG_CHAR_ENUM */
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virtual bool parseCharEnum(network::Packet& packet, CharEnumResponse& response) {
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return CharEnumParser::parse(packet, response);
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}
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// --- Update Object ---
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/** Parse a full SMSG_UPDATE_OBJECT packet */
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virtual bool parseUpdateObject(network::Packet& packet, UpdateObjectData& data) {
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return UpdateObjectParser::parse(packet, data);
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}
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/** Parse update fields block (value mask + field values) */
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virtual bool parseUpdateFields(network::Packet& packet, UpdateBlock& block) {
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return UpdateObjectParser::parseUpdateFields(packet, block);
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}
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// --- Monster Movement ---
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/** Parse SMSG_MONSTER_MOVE */
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virtual bool parseMonsterMove(network::Packet& packet, MonsterMoveData& data) {
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return MonsterMoveParser::parse(packet, data);
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}
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// --- Combat ---
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/** Parse SMSG_ATTACKERSTATEUPDATE */
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virtual bool parseAttackerStateUpdate(network::Packet& packet, AttackerStateUpdateData& data) {
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return AttackerStateUpdateParser::parse(packet, data);
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}
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/** Parse SMSG_SPELLNONMELEEDAMAGELOG */
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virtual bool parseSpellDamageLog(network::Packet& packet, SpellDamageLogData& data) {
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return SpellDamageLogParser::parse(packet, data);
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}
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/** Parse SMSG_SPELLHEALLOG */
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virtual bool parseSpellHealLog(network::Packet& packet, SpellHealLogData& data) {
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return SpellHealLogParser::parse(packet, data);
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}
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// --- Spells ---
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/** Parse SMSG_INITIAL_SPELLS */
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virtual bool parseInitialSpells(network::Packet& packet, InitialSpellsData& data) {
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return InitialSpellsParser::parse(packet, data);
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}
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/** Parse SMSG_SPELL_START */
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virtual bool parseSpellStart(network::Packet& packet, SpellStartData& data) {
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return SpellStartParser::parse(packet, data);
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}
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/** Parse SMSG_SPELL_GO */
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virtual bool parseSpellGo(network::Packet& packet, SpellGoData& data) {
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return SpellGoParser::parse(packet, data);
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}
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/** Parse SMSG_CAST_FAILED */
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virtual bool parseCastFailed(network::Packet& packet, CastFailedData& data) {
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return CastFailedParser::parse(packet, data);
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}
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/** Parse SMSG_CAST_RESULT header (spellId + result), expansion-aware.
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* WotLK: castCount(u8) + spellId(u32) + result(u8)
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* TBC/Classic: spellId(u32) + result(u8) (no castCount prefix)
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*/
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virtual bool parseCastResult(network::Packet& packet, uint32_t& spellId, uint8_t& result) {
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// WotLK default: skip castCount, read spellId + result
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if (packet.getSize() - packet.getReadPos() < 6) return false;
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packet.readUInt8(); // castCount
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spellId = packet.readUInt32();
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result = packet.readUInt8();
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return true;
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}
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/** Parse SMSG_AURA_UPDATE / SMSG_AURA_UPDATE_ALL */
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virtual bool parseAuraUpdate(network::Packet& packet, AuraUpdateData& data, bool isAll = false) {
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return AuraUpdateParser::parse(packet, data, isAll);
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}
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// --- Chat ---
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/** Parse SMSG_MESSAGECHAT */
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virtual bool parseMessageChat(network::Packet& packet, MessageChatData& data) {
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return MessageChatParser::parse(packet, data);
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}
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/** Parse SMSG_NAME_QUERY_RESPONSE */
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virtual bool parseNameQueryResponse(network::Packet& packet, NameQueryResponseData& data) {
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return NameQueryResponseParser::parse(packet, data);
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}
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// --- Creature Query ---
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/** Parse SMSG_CREATURE_QUERY_RESPONSE */
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virtual bool parseCreatureQueryResponse(network::Packet& packet, CreatureQueryResponseData& data) {
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return CreatureQueryResponseParser::parse(packet, data);
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}
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// --- Item Query ---
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/** Build CMSG_ITEM_QUERY_SINGLE */
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virtual network::Packet buildItemQuery(uint32_t entry, uint64_t guid) {
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return ItemQueryPacket::build(entry, guid);
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}
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/** Parse SMSG_ITEM_QUERY_SINGLE_RESPONSE */
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virtual bool parseItemQueryResponse(network::Packet& packet, ItemQueryResponseData& data) {
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return ItemQueryResponseParser::parse(packet, data);
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}
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// --- GameObject Query ---
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/** Parse SMSG_GAMEOBJECT_QUERY_RESPONSE */
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virtual bool parseGameObjectQueryResponse(network::Packet& packet, GameObjectQueryResponseData& data) {
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return GameObjectQueryResponseParser::parse(packet, data);
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}
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// --- Gossip ---
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/** Parse SMSG_GOSSIP_MESSAGE */
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virtual bool parseGossipMessage(network::Packet& packet, GossipMessageData& data) {
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return GossipMessageParser::parse(packet, data);
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}
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// --- Quest details ---
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/** Build CMSG_QUESTGIVER_QUERY_QUEST.
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* WotLK appends a trailing unk1 byte; Vanilla/Classic do not. */
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virtual network::Packet buildQueryQuestPacket(uint64_t npcGuid, uint32_t questId) {
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return QuestgiverQueryQuestPacket::build(npcGuid, questId); // includes unk1
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}
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/** Build CMSG_QUESTGIVER_ACCEPT_QUEST.
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* WotLK/AzerothCore expects trailing unk1 uint32; older expansions may not. */
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virtual network::Packet buildAcceptQuestPacket(uint64_t npcGuid, uint32_t questId) {
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return QuestgiverAcceptQuestPacket::build(npcGuid, questId);
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}
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/** Parse SMSG_QUESTGIVER_QUEST_DETAILS.
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* WotLK has an extra informUnit GUID before questId; Vanilla/Classic do not. */
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virtual bool parseQuestDetails(network::Packet& packet, QuestDetailsData& data) {
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return QuestDetailsParser::parse(packet, data); // WotLK auto-detect
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}
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/** Stride of PLAYER_QUEST_LOG fields in update-object blocks.
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* WotLK: 5 fields per slot, Classic/Vanilla: 3. */
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virtual uint8_t questLogStride() const { return 5; }
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// --- Quest Giver Status ---
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/** Read quest giver status from packet.
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* WotLK: uint8, vanilla/classic: uint32 with different enum values.
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* Returns the status value normalized to WotLK enum values. */
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virtual uint8_t readQuestGiverStatus(network::Packet& packet) {
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return packet.readUInt8();
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}
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// --- Destroy Object ---
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/** Parse SMSG_DESTROY_OBJECT */
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virtual bool parseDestroyObject(network::Packet& packet, DestroyObjectData& data) {
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return DestroyObjectParser::parse(packet, data);
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}
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// --- Guild ---
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/** Parse SMSG_GUILD_ROSTER */
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virtual bool parseGuildRoster(network::Packet& packet, GuildRosterData& data) {
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return GuildRosterParser::parse(packet, data);
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}
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/** Parse SMSG_GUILD_QUERY_RESPONSE */
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virtual bool parseGuildQueryResponse(network::Packet& packet, GuildQueryResponseData& data) {
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return GuildQueryResponseParser::parse(packet, data);
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}
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// --- Channels ---
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/** Build CMSG_JOIN_CHANNEL */
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virtual network::Packet buildJoinChannel(const std::string& channelName, const std::string& password) {
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return JoinChannelPacket::build(channelName, password);
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}
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/** Build CMSG_LEAVE_CHANNEL */
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virtual network::Packet buildLeaveChannel(const std::string& channelName) {
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return LeaveChannelPacket::build(channelName);
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}
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// --- Mail ---
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/** Build CMSG_SEND_MAIL */
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virtual network::Packet buildSendMail(uint64_t mailboxGuid, const std::string& recipient,
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const std::string& subject, const std::string& body,
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uint32_t money, uint32_t cod,
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const std::vector<uint64_t>& itemGuids = {}) {
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return SendMailPacket::build(mailboxGuid, recipient, subject, body, money, cod, itemGuids);
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}
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/** Parse SMSG_MAIL_LIST_RESULT into a vector of MailMessage */
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virtual bool parseMailList(network::Packet& packet, std::vector<MailMessage>& inbox);
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/** Build CMSG_MAIL_TAKE_ITEM */
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virtual network::Packet buildMailTakeItem(uint64_t mailboxGuid, uint32_t mailId, uint32_t itemSlot) {
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return MailTakeItemPacket::build(mailboxGuid, mailId, itemSlot);
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}
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/** Build CMSG_MAIL_DELETE */
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virtual network::Packet buildMailDelete(uint64_t mailboxGuid, uint32_t mailId, uint32_t mailTemplateId) {
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return MailDeletePacket::build(mailboxGuid, mailId, mailTemplateId);
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}
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// --- Utility ---
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/** Read a packed GUID from the packet */
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virtual uint64_t readPackedGuid(network::Packet& packet) {
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return UpdateObjectParser::readPackedGuid(packet);
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}
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/** Write a packed GUID to the packet */
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virtual void writePackedGuid(network::Packet& packet, uint64_t guid) {
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MovementPacket::writePackedGuid(packet, guid);
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}
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};
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/**
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* WotLK 3.3.5a packet parsers.
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*
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* Uses the default implementations which delegate to the existing
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* static parser classes. All current parsing code is WotLK-specific,
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* so no overrides are needed.
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*/
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class WotlkPacketParsers : public PacketParsers {
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// All methods use the defaults from PacketParsers base class,
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// which delegate to the existing WotLK static parsers.
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};
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/**
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* TBC 2.4.3 packet parsers.
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*
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* Overrides methods where TBC binary format differs from WotLK:
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* - SMSG_UPDATE_OBJECT: u8 has_transport after blockCount (WotLK removed it)
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* - UpdateFlags is u8 (not u16), no VEHICLE/ROTATION/POSITION flags
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* - Movement flags2 is u8 (not u16), no transport seat byte
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* - Movement flags: JUMPING=0x2000 gates jump data (WotLK: FALLING=0x1000)
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* - SPLINE_ENABLED=0x08000000, SPLINE_ELEVATION=0x04000000 (same as WotLK)
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* - Pitch: SWIMMING or else ONTRANSPORT(0x02000000)
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* - CharEnum: uint8 firstLogin (not uint32+uint8), 20 equipment items (not 23)
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* - Aura updates use inline update fields, not SMSG_AURA_UPDATE
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*/
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class TbcPacketParsers : public PacketParsers {
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public:
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uint8_t movementFlags2Size() const override { return 1; }
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bool parseMovementBlock(network::Packet& packet, UpdateBlock& block) override;
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void writeMovementPayload(network::Packet& packet, const MovementInfo& info) override;
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network::Packet buildMovementPacket(LogicalOpcode opcode,
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const MovementInfo& info,
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uint64_t playerGuid = 0) override;
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bool parseUpdateObject(network::Packet& packet, UpdateObjectData& data) override;
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bool parseCharEnum(network::Packet& packet, CharEnumResponse& response) override;
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bool parseAuraUpdate(network::Packet& packet, AuraUpdateData& data, bool isAll = false) override;
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bool parseNameQueryResponse(network::Packet& packet, NameQueryResponseData& data) override;
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bool parseItemQueryResponse(network::Packet& packet, ItemQueryResponseData& data) override;
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network::Packet buildAcceptQuestPacket(uint64_t npcGuid, uint32_t questId) override;
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// TBC 2.4.3 CMSG_CAST_SPELL has no castFlags byte (WotLK added it)
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network::Packet buildCastSpell(uint32_t spellId, uint64_t targetGuid, uint8_t castCount) override;
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// TBC 2.4.3 CMSG_USE_ITEM has no glyphIndex field (WotLK added it)
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network::Packet buildUseItem(uint8_t bagIndex, uint8_t slotIndex, uint64_t itemGuid, uint32_t spellId = 0) override;
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// TBC 2.4.3 SMSG_MONSTER_MOVE has no unk byte after packed GUID (WotLK added it)
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bool parseMonsterMove(network::Packet& packet, MonsterMoveData& data) override;
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// TBC 2.4.3 SMSG_GOSSIP_MESSAGE quests lack questFlags(u32)+isRepeatable(u8) (WotLK added them)
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bool parseGossipMessage(network::Packet& packet, GossipMessageData& data) override;
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// TBC 2.4.3 SMSG_CAST_RESULT: spellId(u32) + result(u8) — WotLK added castCount(u8) prefix
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bool parseCastResult(network::Packet& packet, uint32_t& spellId, uint8_t& result) override;
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// TBC 2.4.3 SMSG_SPELL_START: full uint64 GUIDs (WotLK uses packed GUIDs)
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bool parseSpellStart(network::Packet& packet, SpellStartData& data) override;
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// TBC 2.4.3 SMSG_SPELL_GO: full uint64 GUIDs, no timestamp field (WotLK added one)
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bool parseSpellGo(network::Packet& packet, SpellGoData& data) override;
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// TBC 2.4.3 SMSG_MAIL_LIST_RESULT: uint8 count (not uint32+uint8), no body field,
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// attachment uses uint64 itemGuid (not uint32), enchants are 7×u32 id-only (not 7×{id+dur+charges})
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bool parseMailList(network::Packet& packet, std::vector<MailMessage>& inbox) override;
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// TBC 2.4.3 SMSG_ATTACKERSTATEUPDATE uses full uint64 GUIDs (WotLK uses packed GUIDs)
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bool parseAttackerStateUpdate(network::Packet& packet, AttackerStateUpdateData& data) override;
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// TBC 2.4.3 SMSG_SPELLNONMELEEDAMAGELOG uses full uint64 GUIDs (WotLK uses packed GUIDs)
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bool parseSpellDamageLog(network::Packet& packet, SpellDamageLogData& data) override;
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// TBC 2.4.3 SMSG_SPELLHEALLOG uses full uint64 GUIDs (WotLK uses packed GUIDs)
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bool parseSpellHealLog(network::Packet& packet, SpellHealLogData& data) override;
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};
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/**
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* Classic 1.12.1 packet parsers.
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*
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* Inherits from TBC (shared: u8 UpdateFlags, has_transport byte).
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*
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* Differences from TBC:
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* - No moveFlags2 byte (TBC has u8, Classic has none)
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* - Only 6 speed fields (no flight speeds — flying added in TBC)
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* - SPLINE_ENABLED at 0x00400000 (TBC/WotLK: 0x08000000)
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* - Transport data has no timestamp (TBC adds u32 timestamp)
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* - Pitch: only SWIMMING (no ONTRANSPORT secondary pitch)
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* - CharEnum: no enchantment field per equipment slot
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* - No SMSG_AURA_UPDATE (uses update fields, same as TBC)
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*/
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class ClassicPacketParsers : public TbcPacketParsers {
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public:
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uint8_t movementFlags2Size() const override { return 0; }
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bool parseCharEnum(network::Packet& packet, CharEnumResponse& response) override;
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bool parseMovementBlock(network::Packet& packet, UpdateBlock& block) override;
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void writeMovementPayload(network::Packet& packet, const MovementInfo& info) override;
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network::Packet buildMovementPacket(LogicalOpcode opcode,
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const MovementInfo& info,
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uint64_t playerGuid = 0) override;
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network::Packet buildCastSpell(uint32_t spellId, uint64_t targetGuid, uint8_t castCount) override;
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network::Packet buildUseItem(uint8_t bagIndex, uint8_t slotIndex, uint64_t itemGuid, uint32_t spellId = 0) override;
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bool parseCastFailed(network::Packet& packet, CastFailedData& data) override;
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bool parseMessageChat(network::Packet& packet, MessageChatData& data) override;
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bool parseGameObjectQueryResponse(network::Packet& packet, GameObjectQueryResponseData& data) override;
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// Classic 1.12 SMSG_CREATURE_QUERY_RESPONSE lacks the iconName string that TBC/WotLK include
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bool parseCreatureQueryResponse(network::Packet& packet, CreatureQueryResponseData& data) override;
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bool parseGossipMessage(network::Packet& packet, GossipMessageData& data) override;
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bool parseGuildRoster(network::Packet& packet, GuildRosterData& data) override;
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bool parseGuildQueryResponse(network::Packet& packet, GuildQueryResponseData& data) override;
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network::Packet buildJoinChannel(const std::string& channelName, const std::string& password) override;
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network::Packet buildLeaveChannel(const std::string& channelName) override;
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network::Packet buildSendMail(uint64_t mailboxGuid, const std::string& recipient,
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const std::string& subject, const std::string& body,
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uint32_t money, uint32_t cod,
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const std::vector<uint64_t>& itemGuids = {}) override;
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bool parseMailList(network::Packet& packet, std::vector<MailMessage>& inbox) override;
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network::Packet buildMailTakeItem(uint64_t mailboxGuid, uint32_t mailId, uint32_t itemSlot) override;
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network::Packet buildMailDelete(uint64_t mailboxGuid, uint32_t mailId, uint32_t mailTemplateId) override;
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network::Packet buildItemQuery(uint32_t entry, uint64_t guid) override;
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bool parseItemQueryResponse(network::Packet& packet, ItemQueryResponseData& data) override;
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uint8_t readQuestGiverStatus(network::Packet& packet) override;
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network::Packet buildQueryQuestPacket(uint64_t npcGuid, uint32_t questId) override;
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network::Packet buildAcceptQuestPacket(uint64_t npcGuid, uint32_t questId) override;
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bool parseQuestDetails(network::Packet& packet, QuestDetailsData& data) override;
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uint8_t questLogStride() const override { return 3; }
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bool parseMonsterMove(network::Packet& packet, MonsterMoveData& data) override {
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return MonsterMoveParser::parseVanilla(packet, data);
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}
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};
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/**
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* Turtle WoW (build 7234) packet parsers.
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*
|
||
* Turtle WoW is a heavily modified vanilla server that sends TBC-style
|
||
* movement blocks (moveFlags2, transport timestamps, 8 speeds including flight)
|
||
* while keeping all other Classic packet formats.
|
||
*
|
||
* Inherits all Classic overrides (charEnum, chat, gossip, mail, items, etc.)
|
||
* but delegates movement block parsing to TBC format.
|
||
*/
|
||
class TurtlePacketParsers : public ClassicPacketParsers {
|
||
public:
|
||
uint8_t movementFlags2Size() const override { return 0; }
|
||
bool parseMovementBlock(network::Packet& packet, UpdateBlock& block) override;
|
||
bool parseMonsterMove(network::Packet& packet, MonsterMoveData& data) override;
|
||
};
|
||
|
||
/**
|
||
* Factory function to create the right parser set for an expansion.
|
||
*/
|
||
inline std::unique_ptr<PacketParsers> createPacketParsers(const std::string& expansionId) {
|
||
if (expansionId == "classic") return std::make_unique<ClassicPacketParsers>();
|
||
if (expansionId == "turtle") return std::make_unique<TurtlePacketParsers>();
|
||
if (expansionId == "tbc") return std::make_unique<TbcPacketParsers>();
|
||
return std::make_unique<WotlkPacketParsers>();
|
||
}
|
||
|
||
} // namespace game
|
||
} // namespace wowee
|