Core/AdventureMap: Handle CMSG_ADVENTURE_MAP_START_QUEST

Port From (https://github.com/TrinityCore/TrinityCore/commit/08e017b3512ce8189adc6762e3670c20c900f54e)

Source/Game/Handlers/AdventureMapHandler.cs

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2012-2020 CypherCore <http://github.com/CypherCore>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+using Framework.Constants;
+using Framework.IO;
+using Game.BattleGrounds;
+using Game.DataStorage;
+using Game.Entities;
+using Game.Groups;
+using Game.Guilds;
+using Game.Maps;
+using Game.Misc;
+using Game.Networking;
+using Game.Networking.Packets;
+using Game.PvP;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Linq;
+
+namespace Game
+{
+    public partial class WorldSession
+    {
+        [WorldPacketHandler(ClientOpcodes.AdventureMapStartQuest)]
+        void HandleAdventureMapStartQuest(AdventureMapStartQuest startQuest)
+        {
+            Quest quest = Global.ObjectMgr.GetQuestTemplate(startQuest.QuestID);
+            if (quest == null)
+                return;
+
+            var adventureMapPOI = CliDB.AdventureMapPOIStorage.Values.FirstOrDefault(adventureMap =>
+            {
+                return adventureMap.QuestID == startQuest.QuestID && _player.MeetPlayerCondition(adventureMap.PlayerConditionID);
+            });
+
+            if (adventureMapPOI == null)
+                return;
+
+            if (_player.CanTakeQuest(quest, true))
+                _player.AddQuestAndCheckCompletion(quest, _player);
+        }
+    }
+}