From 8fd1dfb4f1a865a3f3a5dcd0838ece1488b10d0e Mon Sep 17 00:00:00 2001
From: Kelsi <kelsihates2fa@gmail.com>
Date: Sun, 22 Mar 2026 18:44:43 -0700
Subject: [PATCH] feat: add UnitArmor and UnitResistance for character sheet
 addons

UnitArmor(unit) returns base, effective, armor, posBuff, negBuff
matching WoW's 5-return signature. Uses server-authoritative armor
from UNIT_FIELD_RESISTANCES[0].

UnitResistance(unit, school) returns base, effective, posBuff, negBuff
for physical (school 0 = armor) and magical resistances (1-6:
Holy/Fire/Nature/Frost/Shadow/Arcane).

Needed by character sheet addons (PaperDollFrame, DejaCharacterStats)
to display armor and resistance values.
---
 src/addons/lua_engine.cpp | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/src/addons/lua_engine.cpp b/src/addons/lua_engine.cpp
index 40f48e37..4700c102 100644
--- a/src/addons/lua_engine.cpp
+++ b/src/addons/lua_engine.cpp
@@ -4787,6 +4787,32 @@ void LuaEngine::registerCoreAPI() {
         {"GetMerchantItemLink",  lua_GetMerchantItemLink},
         {"CanMerchantRepair",    lua_CanMerchantRepair},
         {"UnitStat",      lua_UnitStat},
+        {"UnitArmor",     [](lua_State* L) -> int {
+            auto* gh = getGameHandler(L);
+            int32_t armor = gh ? gh->getArmorRating() : 0;
+            if (armor < 0) armor = 0;
+            lua_pushnumber(L, armor); // base
+            lua_pushnumber(L, armor); // effective
+            lua_pushnumber(L, armor); // armor (again for compat)
+            lua_pushnumber(L, 0);     // posBuff
+            lua_pushnumber(L, 0);     // negBuff
+            return 5;
+        }},
+        {"UnitResistance", [](lua_State* L) -> int {
+            auto* gh = getGameHandler(L);
+            int school = static_cast<int>(luaL_optnumber(L, 2, 0));
+            int32_t val = 0;
+            if (gh) {
+                if (school == 0) val = gh->getArmorRating(); // physical = armor
+                else if (school >= 1 && school <= 6) val = gh->getResistance(school);
+            }
+            if (val < 0) val = 0;
+            lua_pushnumber(L, val); // base
+            lua_pushnumber(L, val); // effective
+            lua_pushnumber(L, 0);   // posBuff
+            lua_pushnumber(L, 0);   // negBuff
+            return 4;
+        }},
         {"GetDodgeChance",    lua_GetDodgeChance},
         {"GetParryChance",    lua_GetParryChance},
         {"GetBlockChance",    lua_GetBlockChance},