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feat: add generic UnitAura(unit, index, filter) Lua API function

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Add UnitAura() that accepts WoW-compatible filter strings: "HELPFUL" for
buffs, "HARMFUL" for debuffs. Delegates to existing UnitBuff/UnitDebuff
logic. Many addons (WeakAuras, Grid, etc.) use UnitAura with filter
strings rather than separate UnitBuff/UnitDebuff calls.
This commit is contained in:
Kelsi 2026-03-20 16:42:06 -07:00
parent 4cdccb7430
commit d7d6819855
1 changed files with 12 additions and 0 deletions
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12
src/addons/lua_engine.cpp
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@ -396,6 +396,17 @@ static int lua_UnitAura(lua_State* L, bool wantBuff) {
static int lua_UnitBuff(lua_State* L) { return lua_UnitAura(L, true); }
static int lua_UnitDebuff(lua_State* L) { return lua_UnitAura(L, false); }
// UnitAura(unit, index, filter) — generic aura query with filter string
// filter: "HELPFUL" = buffs, "HARMFUL" = debuffs, "PLAYER" = cast by player,
// "HELPFUL|PLAYER" = buffs cast by player, etc.
static int lua_UnitAuraGeneric(lua_State* L) {
const char* filter = luaL_optstring(L, 3, "HELPFUL");
std::string f(filter ? filter : "HELPFUL");
for (char& c : f) c = static_cast<char>(std::toupper(static_cast<unsigned char>(c)));
bool wantBuff = (f.find("HARMFUL") == std::string::npos);
return lua_UnitAura(L, wantBuff);
}
// --- Action API ---
static int lua_SendChatMessage(lua_State* L) {
@ -1189,6 +1200,7 @@ void LuaEngine::registerCoreAPI() {
{"InCombatLockdown", lua_InCombatLockdown},
{"UnitBuff", lua_UnitBuff},
{"UnitDebuff", lua_UnitDebuff},
{"UnitAura", lua_UnitAuraGeneric},
{"GetNumAddOns", lua_GetNumAddOns},
{"GetAddOnInfo", lua_GetAddOnInfo},
{"GetSpellInfo", lua_GetSpellInfo},