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feat: add targeting Lua API functions for addon and macro support

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Implement 8 targeting functions commonly used by unit frame addons,
targeting macros, and click-casting addons:
- TargetUnit(unitId) / ClearTarget()
- FocusUnit(unitId) / ClearFocus()
- AssistUnit(unitId) — target the given unit's target
- TargetLastTarget() — return to previous target
- TargetNearestEnemy() / TargetNearestFriend() — tab-targeting
This commit is contained in:
Kelsi 2026-03-21 01:58:03 -07:00
parent 3ae18f03a1
commit 45850c5aa9
1 changed files with 82 additions and 0 deletions
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82
src/addons/lua_engine.cpp
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@ -582,6 +582,80 @@ static int lua_HasTarget(lua_State* L) {
return 1;
}
// TargetUnit(unitId) — set current target
static int lua_TargetUnit(lua_State* L) {
auto* gh = getGameHandler(L);
if (!gh) return 0;
const char* uid = luaL_checkstring(L, 1);
std::string uidStr(uid);
for (char& c : uidStr) c = static_cast<char>(std::tolower(static_cast<unsigned char>(c)));
uint64_t guid = resolveUnitGuid(gh, uidStr);
if (guid != 0) gh->setTarget(guid);
return 0;
}
// ClearTarget() — clear current target
static int lua_ClearTarget(lua_State* L) {
auto* gh = getGameHandler(L);
if (gh) gh->clearTarget();
return 0;
}
// FocusUnit(unitId) — set focus target
static int lua_FocusUnit(lua_State* L) {
auto* gh = getGameHandler(L);
if (!gh) return 0;
const char* uid = luaL_optstring(L, 1, nullptr);
if (!uid || !*uid) return 0;
std::string uidStr(uid);
for (char& c : uidStr) c = static_cast<char>(std::tolower(static_cast<unsigned char>(c)));
uint64_t guid = resolveUnitGuid(gh, uidStr);
if (guid != 0) gh->setFocus(guid);
return 0;
}
// ClearFocus() — clear focus target
static int lua_ClearFocus(lua_State* L) {
auto* gh = getGameHandler(L);
if (gh) gh->clearFocus();
return 0;
}
// AssistUnit(unitId) — target whatever the given unit is targeting
static int lua_AssistUnit(lua_State* L) {
auto* gh = getGameHandler(L);
if (!gh) return 0;
const char* uid = luaL_optstring(L, 1, "target");
std::string uidStr(uid);
for (char& c : uidStr) c = static_cast<char>(std::tolower(static_cast<unsigned char>(c)));
uint64_t guid = resolveUnitGuid(gh, uidStr);
if (guid == 0) return 0;
uint64_t theirTarget = getEntityTargetGuid(gh, guid);
if (theirTarget != 0) gh->setTarget(theirTarget);
return 0;
}
// TargetLastTarget() — re-target previous target
static int lua_TargetLastTarget(lua_State* L) {
auto* gh = getGameHandler(L);
if (gh) gh->targetLastTarget();
return 0;
}
// TargetNearestEnemy() — tab-target nearest enemy
static int lua_TargetNearestEnemy(lua_State* L) {
auto* gh = getGameHandler(L);
if (gh) gh->targetEnemy(false);
return 0;
}
// TargetNearestFriend() — target nearest friendly unit
static int lua_TargetNearestFriend(lua_State* L) {
auto* gh = getGameHandler(L);
if (gh) gh->targetFriend(false);
return 0;
}
// --- GetSpellInfo / GetSpellTexture ---
// GetSpellInfo(spellIdOrName) -> name, rank, icon, castTime, minRange, maxRange, spellId
static int lua_GetSpellInfo(lua_State* L) {
@ -2214,6 +2288,14 @@ void LuaEngine::registerCoreAPI() {
{"IsSpellKnown", lua_IsSpellKnown},
{"GetSpellCooldown", lua_GetSpellCooldown},
{"HasTarget", lua_HasTarget},
{"TargetUnit", lua_TargetUnit},
{"ClearTarget", lua_ClearTarget},
{"FocusUnit", lua_FocusUnit},
{"ClearFocus", lua_ClearFocus},
{"AssistUnit", lua_AssistUnit},
{"TargetLastTarget", lua_TargetLastTarget},
{"TargetNearestEnemy", lua_TargetNearestEnemy},
{"TargetNearestFriend", lua_TargetNearestFriend},
{"UnitRace", lua_UnitRace},
{"UnitPowerType", lua_UnitPowerType},
{"GetNumGroupMembers", lua_GetNumGroupMembers},