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Fix NPC chat showing only name without message text

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Two bugs in SMSG_MESSAGECHAT parser for MONSTER_SAY/YELL/EMOTE:

1. Sender name included trailing null byte from server (nameLen includes
   null terminator). The embedded null in std::string caused ImGui to
   truncate the concatenated display string at the NPC name, hiding
   " says: <message>" entirely.

2. Missing NamedGuid receiver name for non-player/non-pet targets. When
   the receiver GUID is a creature, the server writes an additional
   SizedCString (target name) that we weren't reading, shifting all
   subsequent field reads.

Also adds MONSTER_WHISPER, MONSTER_PARTY, RAID_BOSS_EMOTE, RAID_BOSS_WHISPER
chat types with proper parsing and display formatting (says/yells/whispers).
This commit is contained in:
Kelsi 2026-03-02 08:31:34 -08:00
parent f1caf8c03e
commit b948720ec3
4 changed files with 41 additions and 6 deletions
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27
src/game/world_packets.cpp
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@ -1370,17 +1370,38 @@ bool MessageChatParser::parse(network::Packet& packet, MessageChatData& data) {
switch (data.type) {
case ChatType::MONSTER_SAY:
case ChatType::MONSTER_YELL:
case ChatType::MONSTER_EMOTE: {
// Read sender name length + name
case ChatType::MONSTER_EMOTE:
case ChatType::MONSTER_WHISPER:
case ChatType::MONSTER_PARTY:
case ChatType::RAID_BOSS_EMOTE:
case ChatType::RAID_BOSS_WHISPER: {
// Read sender name (SizedCString: uint32 len including null + chars)
uint32_t nameLen = packet.readUInt32();
if (nameLen > 0 && nameLen < 256) {
data.senderName.resize(nameLen);
for (uint32_t i = 0; i < nameLen; ++i) {
data.senderName[i] = static_cast<char>(packet.readUInt8());
}
// Strip trailing null (server includes it in nameLen)
if (!data.senderName.empty() && data.senderName.back() == '\0') {
data.senderName.pop_back();
}
}
// Read receiver GUID
// Read receiver GUID (NamedGuid: guid + optional name for non-player targets)
data.receiverGuid = packet.readUInt64();
if (data.receiverGuid != 0) {
// Non-player, non-pet GUIDs have high type bits set (0xF1xx/0xF0xx range)
uint16_t highGuid = static_cast<uint16_t>(data.receiverGuid >> 48);
bool isPlayer = (highGuid == 0x0000);
bool isPet = ((highGuid & 0xF0FF) == 0xF040) || ((highGuid & 0xF0FF) == 0xF014);
if (!isPlayer && !isPet) {
// Read receiver name (SizedCString)
uint32_t recvNameLen = packet.readUInt32();
if (recvNameLen > 0 && recvNameLen < 256) {
packet.setReadPos(packet.getReadPos() + recvNameLen);
}
}
}
break;
}