feat: add Player:GetTrader (#126)

README.md

@@ -96,6 +96,7 @@ Eluna API for AC:
 - Added `Player:GetAchievementCriteriaProgress()`: https://github.com/azerothcore/mod-eluna/pull/78
 - Added vendor entry as argument to `Player:SendListInventory(object, vendorentry)`: https://github.com/azerothcore/mod-eluna/pull/48
 - Added `Player:GetPlayerSettingValue()` and `Player:UpdatePlayerSetting()`: https://github.com/azerothcore/mod-eluna/pull/125
+- Added `Player:GetTrader()`: https://github.com/azerothcore/mod-eluna/pull/126
 
 ### Group
 - Added `Group:GetGroupType()`: https://github.com/azerothcore/mod-eluna/pull/82

src/LuaEngine/LuaFunctions.cpp

@@ -544,6 +544,7 @@ ElunaRegister<Player> PlayerMethods[] =
     { "GetHonorLastWeekStandingPos", &LuaPlayer::GetHonorLastWeekStandingPos },
 #endif
     { "GetPlayerSettingValue", &LuaPlayer::GetPlayerSettingValue },
+    { "GetTrader", &LuaPlayer::GetTrader },
 
     // Setters
     { "AdvanceSkillsToMax", &LuaPlayer::AdvanceSkillsToMax },

src/LuaEngine/PlayerMethods.h

@@ -4199,6 +4199,17 @@ namespace LuaPlayer
         return 1;
     }
 
+    /**
+     * Returns the [Player] that is currently trading with this [Player]
+     *
+     * @return [Player] trader : the player trading, or nil
+     */
+    int GetTrader(lua_State* L, Player* player)
+    {
+        Eluna::Push(L, player->GetTrader());
+        return 1;
+    }
+
     /*int BindToInstance(lua_State* L, Player* player)
     {
     player->BindToInstance();