Core/Arenas: Remove doors in RL, NA and BE when arena has begun

Port From (https://github.com/TrinityCore/TrinityCore/commit/46c0f0d8fe9c9880b7e8cf12b589b06aa757fc80)

Source/Game/Arenas/Arena.cs

@@ -16,6 +16,7 @@
  */
 
 using Framework.Constants;
+using Framework.Dynamic;
 using Game.BattleGrounds;
 using Game.Entities;
 using Game.Guilds;
@@ -27,6 +28,8 @@ namespace Game.Arenas
 {
     public class Arena : Battleground
     {
+        protected TaskScheduler taskScheduler = new();
+
         public Arena(BattlegroundTemplate battlegroundTemplate) : base(battlegroundTemplate)
         {
             StartDelayTimes[BattlegroundConst.EventIdFirst] = BattlegroundStartTimeIntervals.Delay1m;

Source/Game/Arenas/Zones/BladesEdgeArena.cs

@@ -16,9 +16,10 @@
  */
 
 using Framework.Constants;
+using Game.BattleGrounds;
 using Game.Entities;
 using Game.Networking.Packets;
-using Game.BattleGrounds;
+using System;
 
 namespace Game.Arenas
 {
@@ -26,6 +27,14 @@ namespace Game.Arenas
     {
         public BladesEdgeArena(BattlegroundTemplate battlegroundTemplate) : base(battlegroundTemplate) { }
 
+        public override void PostUpdateImpl(uint diff)
+        {
+            if (GetStatus() != BattlegroundStatus.InProgress)
+                return;
+
+            taskScheduler.Update(diff);
+        }
+
         public override void StartingEventCloseDoors()
         {
             for (int i = BladeEdgeObjectTypes.Door1; i <= BladeEdgeObjectTypes.Door4; ++i)
@@ -40,6 +49,12 @@ namespace Game.Arenas
             for (int i = BladeEdgeObjectTypes.Door1; i <= BladeEdgeObjectTypes.Door4; ++i)
                 DoorOpen(i);
 
+            taskScheduler.Schedule(TimeSpan.FromSeconds(5), task =>
+            {
+                for (int i = BladeEdgeObjectTypes.Door1; i <= BladeEdgeObjectTypes.Door2; ++i)
+                    DelObject(i);
+            });
+
             for (int i = BladeEdgeObjectTypes.Buff1; i <= BladeEdgeObjectTypes.Buff2; ++i)
                 SpawnBGObject(i, 60);
         }

Source/Game/Arenas/Zones/NagrandArena.cs

@@ -16,9 +16,10 @@
  */
 
 using Framework.Constants;
+using Game.BattleGrounds;
 using Game.Entities;
 using Game.Networking.Packets;
-using Game.BattleGrounds;
+using System;
 
 namespace Game.Arenas
 {
@@ -26,6 +27,14 @@ namespace Game.Arenas
     {
         public NagrandArena(BattlegroundTemplate battlegroundTemplate) : base(battlegroundTemplate) { }
 
+        public override void PostUpdateImpl(uint diff)
+        {
+            if (GetStatus() != BattlegroundStatus.InProgress)
+                return;
+
+            taskScheduler.Update(diff);
+        }
+
         public override void StartingEventCloseDoors()
         {
             for (int i = NagrandArenaObjectTypes.Door1; i <= NagrandArenaObjectTypes.Door4; ++i)
@@ -37,6 +46,12 @@ namespace Game.Arenas
             for (int i = NagrandArenaObjectTypes.Door1; i <= NagrandArenaObjectTypes.Door4; ++i)
                 DoorOpen(i);
 
+            taskScheduler.Schedule(TimeSpan.FromSeconds(5), task =>
+            {
+                for (int i = NagrandArenaObjectTypes.Door1; i <= NagrandArenaObjectTypes.Door2; ++i)
+                    DelObject(i);
+            });
+
             for (int i = NagrandArenaObjectTypes.Buff1; i <= NagrandArenaObjectTypes.Buff2; ++i)
                 SpawnBGObject(i, 60);
         }

Source/Game/Arenas/Zones/RuinsofLordaeron.cs

@@ -16,9 +16,10 @@
  */
 
 using Framework.Constants;
+using Game.BattleGrounds;
 using Game.Entities;
 using Game.Networking.Packets;
-using Game.BattleGrounds;
+using System;
 
 namespace Game.Arenas
 {
@@ -26,6 +27,14 @@ namespace Game.Arenas
     {
         public RuinsofLordaeronArena(BattlegroundTemplate battlegroundTemplate) : base(battlegroundTemplate) { }
 
+        public override void PostUpdateImpl(uint diff)
+        {
+            if (GetStatus() != BattlegroundStatus.InProgress)
+                return;
+
+            taskScheduler.Update(diff);
+        }
+
         public override bool SetupBattleground()
         {
             bool result = true;
@@ -59,6 +68,12 @@ namespace Game.Arenas
             for (int i = RuinsofLordaeronObjectTypes.Door1; i <= RuinsofLordaeronObjectTypes.Door2; ++i)
                 DoorOpen(i);
 
+            taskScheduler.Schedule(TimeSpan.FromSeconds(5), task =>
+            {
+                for (int i = RuinsofLordaeronObjectTypes.Door1; i <= RuinsofLordaeronObjectTypes.Door2; ++i)
+                    DelObject(i);
+            });
+
             for (int i = RuinsofLordaeronObjectTypes.Buff1; i <= RuinsofLordaeronObjectTypes.Buff2; ++i)
                 SpawnBGObject(i, 60);
         }