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feat: fire spellcast channel and interrupt events for Lua addons

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Add UNIT_SPELLCAST_CHANNEL_START (MSG_CHANNEL_START), UNIT_SPELLCAST_CHANNEL_STOP
(MSG_CHANNEL_UPDATE with 0ms remaining), UNIT_SPELLCAST_FAILED (SMSG_CAST_RESULT
with error), and UNIT_SPELLCAST_INTERRUPTED (SMSG_SPELL_FAILURE) events. These
enable addons to track channeled spells and cast interruptions for all units.
This commit is contained in:
Kelsi 2026-03-20 15:37:33 -07:00
parent e033efc998
commit 0dd1b08504
1 changed files with 29 additions and 0 deletions
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29
src/game/game_handler.cpp
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@ -2281,6 +2281,8 @@ void GameHandler::handlePacket(network::Packet& packet) {
: ("Spell cast failed (error " + std::to_string(castResult) + ")");
addUIError(errMsg);
if (spellCastFailedCallback_) spellCastFailedCallback_(castResultSpellId);
if (addonEventCallback_)
addonEventCallback_("UNIT_SPELLCAST_FAILED", {"player", std::to_string(castResultSpellId)});
MessageChatData msg;
msg.type = ChatType::SYSTEM;
msg.language = ChatLanguage::UNIVERSAL;
@ -3381,6 +3383,15 @@ void GameHandler::handlePacket(network::Packet& packet) {
}
}
}
// Fire UNIT_SPELLCAST_INTERRUPTED for Lua addons
if (addonEventCallback_) {
std::string unitId;
if (failGuid == playerGuid || failGuid == 0) unitId = "player";
else if (failGuid == targetGuid) unitId = "target";
else if (failGuid == focusGuid) unitId = "focus";
if (!unitId.empty())
addonEventCallback_("UNIT_SPELLCAST_INTERRUPTED", {unitId});
}
if (failGuid == playerGuid || failGuid == 0) {
// Player's own cast failed — clear gather-node loot target so the
// next timed cast doesn't try to loot a stale interrupted gather node.
@ -7302,6 +7313,15 @@ void GameHandler::handlePacket(network::Packet& packet) {
}
LOG_DEBUG("MSG_CHANNEL_START: caster=0x", std::hex, chanCaster, std::dec,
" spell=", chanSpellId, " total=", chanTotalMs, "ms");
// Fire UNIT_SPELLCAST_CHANNEL_START for Lua addons
if (addonEventCallback_) {
std::string unitId;
if (chanCaster == playerGuid) unitId = "player";
else if (chanCaster == targetGuid) unitId = "target";
else if (chanCaster == focusGuid) unitId = "focus";
if (!unitId.empty())
addonEventCallback_("UNIT_SPELLCAST_CHANNEL_START", {unitId, std::to_string(chanSpellId)});
}
}
break;
}
@ -7329,6 +7349,15 @@ void GameHandler::handlePacket(network::Packet& packet) {
}
LOG_DEBUG("MSG_CHANNEL_UPDATE: caster=0x", std::hex, chanCaster2, std::dec,
" remaining=", chanRemainMs, "ms");
// Fire UNIT_SPELLCAST_CHANNEL_STOP when channel ends
if (chanRemainMs == 0 && addonEventCallback_) {
std::string unitId;
if (chanCaster2 == playerGuid) unitId = "player";
else if (chanCaster2 == targetGuid) unitId = "target";
else if (chanCaster2 == focusGuid) unitId = "focus";
if (!unitId.empty())
addonEventCallback_("UNIT_SPELLCAST_CHANNEL_STOP", {unitId});
}
break;
}