Don't allow to summon dead hunter pets

Port From (https://github.com/TrinityCore/TrinityCore/commit/92fc09b1b5507c11c9e7ca63e6de0ec7574f0810)

Source/Framework/Constants/PetConst.cs

@@ -123,4 +123,23 @@ namespace Framework.Constants
         CantControlExotic = 11,                             // "you are unable to control exotic creatures"
         InternalError = 12,                             // "Internal pet error"
     }
+
+    public enum PetTameResult
+    {
+        Ok = 0,
+        InvalidCreature = 1,
+        TooMany = 2,
+        CreatureAlreadyOwned = 3,
+        NotTameable = 4,
+        AnotherSummonActive = 5,
+        UnitsCantTame = 6,
+        NoPetAvailable = 7,
+        InternalError = 8,
+        TooHighLevel = 9,
+        Dead = 10,
+        NotDead = 11,
+        CantControlExotic = 12,
+        InvalidSlot = 13,
+        EliteTooHighLevel = 14
+    }
 }

Source/Game/Entities/Player/Player.cs

@@ -17,11 +17,13 @@
 
 using Framework.Constants;
 using Framework.Database;
+using Framework.Dynamic;
 using Game.Achievements;
 using Game.AI;
 using Game.Arenas;
 using Game.BattleFields;
 using Game.BattleGrounds;
+using Game.BattlePets;
 using Game.Chat;
 using Game.DataStorage;
 using Game.Garrisons;
@@ -38,7 +40,6 @@ using Game.Spells;
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using Framework.Dynamic;
 
 namespace Game.Entities
 {
@@ -952,7 +953,7 @@ namespace Game.Entities
             return null;
         }
 
-        public void SetBattlePetData(BattlePets.BattlePetMgr.BattlePet pet = null)
+        public void SetBattlePetData(BattlePet pet = null)
         {
             if (pet != null)
             {
@@ -4683,11 +4684,18 @@ namespace Game.Entities
             return null;
         }
 
-        public Pet SummonPet(uint entry, float x, float y, float z, float ang, PetType petType, uint duration)
+        public Pet SummonPet(uint entry, float x, float y, float z, float ang, PetType petType, uint duration, bool aliveOnly = false)
         {
             Pet pet = new(this, petType);
             if (petType == PetType.Summon && pet.LoadPetFromDB(this, entry))
             {
+                if (aliveOnly && !pet.IsAlive())
+                {
+                    pet.DespawnOrUnsummon();
+                    SendTameFailure(PetTameResult.Dead);
+                    return null;
+                }
+
                 if (duration > 0)
                     pet.SetDuration(duration);
 
@@ -4836,6 +4844,13 @@ namespace Game.Entities
             }
         }
 
+        void SendTameFailure(PetTameResult result)
+        {
+            PetTameFailure petTameFailure = new();
+            petTameFailure.Result = result;
+            SendPacket(petTameFailure);
+        }
+
         public void AddPetAura(PetAura petSpell)
         {
             m_petAuras.Add(petSpell);

Source/Game/Networking/Packets/PetPackets.cs

@@ -354,6 +354,18 @@ namespace Game.Networking.Packets
         public PetTalk Action;
     }
 
+    class PetTameFailure : ServerPacket
+    {
+        public PetTameFailure() : base(ServerOpcodes.PetTameFailure) { }
+
+        public override void Write()
+        {
+            _worldPacket.WriteUInt8(Result);
+        }
+
+        public byte Result;
+    }
+    
     //Structs
     public class PetSpellCooldown
     {

Source/Game/Spells/SpellEffects.cs

@@ -2309,7 +2309,7 @@ namespace Game.Spells
 
             float x, y, z;
             owner.GetClosePoint(out x, out y, out z, owner.GetCombatReach());
-            Pet pet = owner.SummonPet(petentry, x, y, z, owner.Orientation, PetType.Summon, 0);
+            Pet pet = owner.SummonPet(petentry, x, y, z, owner.Orientation, PetType.Summon, 0, true);
             if (!pet)
                 return;