Core/Scripts: unified scripted gossip/quest api

Port From (https://github.com/TrinityCore/TrinityCore/commit/6604849716bc73d82a4cdbf8c66bb188086ceae4)

Source/Game/AI/CoreAI/GameObjectAI.cs

@@ -18,14 +18,15 @@
 using Framework.Dynamic;
 using Game.Entities;
 using Game.Spells;
+using Framework.Constants;
 
 namespace Game.AI
 {
     public class GameObjectAI
     {
-        public GameObjectAI(GameObject g)
+        public GameObjectAI(GameObject gameObject)
         {
-            go = g;
+            me = gameObject;
             _scheduler = new TaskScheduler();
             _events = new EventMap();
         }
@@ -41,27 +42,53 @@ namespace Game.AI
         public virtual void SetGUID(ulong guid, int id = 0) { }
         public virtual ulong GetGUID(int id = 0) { return 0; }
 
+        /// <summary>
+        /// Called when a player opens a gossip dialog with the gameobject.
+        /// </summary>
         public virtual bool GossipHello(Player player, bool reportUse) { return false; }
-        public virtual bool GossipSelect(Player player, uint sender, uint action) { return false; }
+
+        /// <summary>
+        /// Called when a player selects a gossip item in the gameobject's gossip menu.
+        /// </summary>
+        public virtual bool GossipSelect(Player player, uint menuId, uint gossipListId) { return false; }
+
+        /// <summary>
+        /// Called when a player selects a gossip with a code in the gameobject's gossip menu.
+        /// </summary>
         public virtual bool GossipSelectCode(Player player, uint sender, uint action, string code) { return false; }
-        public virtual bool QuestAccept(Player player, Quest quest) { return false; }
-        public virtual bool QuestReward(Player player, Quest quest, uint opt) { return false; }
+
+        /// <summary>
+        /// Called when a player accepts a quest from the gameobject.
+        /// </summary>
+        public virtual void QuestAccept(Player player, Quest quest) { }
+
+        /// <summary>
+        /// Called when a player completes a quest and is rewarded, opt is the selected item's index or 0
+        /// </summary>
+        public virtual void QuestReward(Player player, Quest quest, uint opt) { }
+
+        /// <summary>
+        /// Called when the dialog status between a player and the gameobject is requested.
+        /// </summary>
         public virtual uint GetDialogStatus(Player player) { return 100; }
         public virtual void Destroyed(Player player, uint eventId) { }
+        public virtual void Damaged(Player player, uint eventId) { }
+
         public virtual void SetData64(uint id, ulong value) { }
         public virtual ulong GetData64(uint id) { return 0; }
         public virtual uint GetData(uint id) { return 0; }
         public virtual void SetData(uint id, uint value) { }
 
         public virtual void OnGameEvent(bool start, ushort eventId) { }
-        public virtual void OnStateChanged(uint state, Unit unit) { }
+        public virtual void OnLootStateChanged(uint state, Unit unit) { }
+        public virtual void OnStateChanged(GameObjectState state) { }
         public virtual void EventInform(uint eventId) { }
         public virtual void SpellHit(Unit unit, SpellInfo spellInfo) { }
 
         protected TaskScheduler _scheduler;
         protected EventMap _events;
 
-        public GameObject go;
+        public GameObject me;
     }
 
     public class NullGameObjectAI : GameObjectAI