Core/Player: Add helper function to determine if war mode can be enabled in area

Port From (https://github.com/TrinityCore/TrinityCore/commit/626c8f5de12daac6b88989807eba65d3d7a061dd)

Source/Framework/Constants/CliDBConst.cs

@@ -877,6 +877,7 @@ namespace Framework.Constants
         FlyWarriorChargeEnd = 821
     }
 
+    [Flags]
     public enum AreaFlags
     {
         Snow = 0x01,                // Snow (Only Dun Morogh, Naxxramas, Razorfen Downs And Winterspring)
@@ -911,6 +912,7 @@ namespace Framework.Constants
         Unk9 = 0x40000000,
     }
 
+    [Flags]
     public enum AreaFlags2
     {
         DontShowSanctuary = 0x200,                // Hides sanctuary status from zone text color (Script_GetZonePVPInfo)

Source/Game/Achievements/CriteriaHandler.cs

@@ -1450,7 +1450,7 @@ namespace Game.Achievements
                         uint zoneId = referencePlayer.GetAreaId();
                         AreaTableRecord areaEntry = CliDB.AreaTableStorage.LookupByKey(zoneId);
                         if (areaEntry != null)
-                            if (areaEntry.Flags[0].HasAnyFlag(AreaFlags.Unk9))
+                            if (areaEntry.Flags.HasFlag(AreaFlags.Unk9))
                                 zoneId = areaEntry.ParentAreaID;
                         if (zoneId != reqValue)
                             return false;
@@ -1463,7 +1463,7 @@ namespace Game.Achievements
                         uint zoneId = unit.GetAreaId();
                         AreaTableRecord areaEntry = CliDB.AreaTableStorage.LookupByKey(zoneId);
                         if (areaEntry != null)
-                            if (areaEntry.Flags[0].HasAnyFlag(AreaFlags.Unk9))
+                            if (areaEntry.Flags.HasFlag(AreaFlags.Unk9))
                                 zoneId = areaEntry.ParentAreaID;
                         if (zoneId != reqValue)
                             return false;

Source/Game/DataStorage/Structs/A_Records.cs

@@ -142,7 +142,8 @@ namespace Game.DataStorage
         public byte WildBattlePetLevelMax;
         public byte WindSettingsID;
         public uint ContentTuningID;
-        public AreaFlags[] Flags = new AreaFlags[2];
+        public AreaFlags Flags;
+        public AreaFlags2 Flags2;
         public ushort[] LiquidTypeID = new ushort[4];
 
         public bool IsSanctuary()
@@ -150,14 +151,14 @@ namespace Game.DataStorage
             if (ContinentID == 609)
                 return true;
 
-            return Flags[0].HasAnyFlag(AreaFlags.Sanctuary);
+            return Flags.HasAnyFlag(AreaFlags.Sanctuary);
         }
 
         public bool IsFlyable()
         {
-            if (Flags[0].HasAnyFlag(AreaFlags.Outland))
+            if (Flags.HasAnyFlag(AreaFlags.Outland))
             {
-                if (!Flags[0].HasAnyFlag(AreaFlags.NoFlyZone))
+                if (!Flags.HasAnyFlag(AreaFlags.NoFlyZone))
                     return true;
             }
 

Source/Game/Entities/Player/Player.Map.cs

@@ -112,7 +112,7 @@ namespace Game.Entities
 
             AreaTableRecord area = CliDB.AreaTableStorage.LookupByKey(newArea);
             bool oldFFAPvPArea = pvpInfo.IsInFFAPvPArea;
-            pvpInfo.IsInFFAPvPArea = area != null && area.Flags[0].HasAnyFlag(AreaFlags.Arena);
+            pvpInfo.IsInFFAPvPArea = area != null && area.Flags.HasFlag(AreaFlags.Arena);
             UpdatePvPState(true);
 
             // check if we were in ffa arena and we left
@@ -140,7 +140,7 @@ namespace Game.Entities
                 RemovePvpFlag(UnitPVPStateFlags.Sanctuary);
 
             AreaFlags areaRestFlag = (GetTeam() == Team.Alliance) ? AreaFlags.RestZoneAlliance : AreaFlags.RestZoneHorde;
-            if (area != null && area.Flags[0].HasAnyFlag(areaRestFlag))
+            if (area != null && area.Flags.HasFlag(areaRestFlag))
                 _restMgr.SetRestFlag(RestFlag.FactionArea);
             else
                 _restMgr.RemoveRestFlag(RestFlag.FactionArea);
@@ -192,7 +192,7 @@ namespace Game.Entities
 
             UpdateHostileAreaState(zone);
 
-            if (zone.Flags[0].HasAnyFlag(AreaFlags.Capital))                     // Is in a capital city
+            if (zone.Flags.HasFlag(AreaFlags.Capital))                     // Is in a capital city
             {
                 if (!pvpInfo.IsInHostileArea || zone.IsSanctuary())
                     _restMgr.SetRestFlag(RestFlag.City);
@@ -237,17 +237,17 @@ namespace Game.Entities
 
             if (area.IsSanctuary()) // sanctuary and arena cannot be overriden
                 pvpInfo.IsInHostileArea = false;
-            else if (area.Flags[0].HasAnyFlag(AreaFlags.Arena))
+            else if (area.Flags.HasFlag(AreaFlags.Arena))
                 pvpInfo.IsInHostileArea = true;
             else if (overrideZonePvpType == ZonePVPTypeOverride.None)
             {
                 if (area != null)
                 {
-                    if (InBattleground() || area.Flags[0].HasAnyFlag(AreaFlags.Combat) || (area.PvpCombatWorldStateID != -1 && Global.WorldMgr.GetWorldState((WorldStates)area.PvpCombatWorldStateID) != 0))
+                    if (InBattleground() || area.Flags.HasFlag(AreaFlags.Combat) || (area.PvpCombatWorldStateID != -1 && Global.WorldMgr.GetWorldState((WorldStates)area.PvpCombatWorldStateID) != 0))
                         pvpInfo.IsInHostileArea = true;
-                    else if (Global.WorldMgr.IsPvPRealm() || area.Flags[0].HasAnyFlag(AreaFlags.Unk3))
+                    else if (Global.WorldMgr.IsPvPRealm() || area.Flags.HasFlag(AreaFlags.Unk3))
                     {
-                        if (area.Flags[0].HasAnyFlag(AreaFlags.ContestedArea))
+                        if (area.Flags.HasFlag(AreaFlags.ContestedArea))
                             pvpInfo.IsInHostileArea = Global.WorldMgr.IsPvPRealm();
                         else
                         {

Source/Game/Entities/Player/Player.PvP.cs

@@ -511,7 +511,7 @@ namespace Game.Entities
                     if (area.IsSanctuary())
                         return false;
 
-                    if (area.Flags[0].HasAnyFlag(AreaFlags.Arena))
+                    if (area.Flags.HasFlag(AreaFlags.Arena))
                         return true;
 
                     if (Global.BattleFieldMgr.GetBattlefieldToZoneId(area.Id) != null)

Source/Game/Entities/Player/Player.cs

@@ -2575,10 +2575,10 @@ namespace Game.Entities
 
         public bool CanJoinConstantChannelInZone(ChatChannelsRecord channel, AreaTableRecord zone)
         {
-            if (channel.Flags.HasAnyFlag(ChannelDBCFlags.ZoneDep) && zone.Flags[0].HasAnyFlag(AreaFlags.ArenaInstance))
+            if (channel.Flags.HasAnyFlag(ChannelDBCFlags.ZoneDep) && zone.Flags.HasFlag(AreaFlags.ArenaInstance))
                 return false;
 
-            if (channel.Flags.HasAnyFlag(ChannelDBCFlags.CityOnly) && !zone.Flags[0].HasAnyFlag(AreaFlags.Capital))
+            if (channel.Flags.HasAnyFlag(ChannelDBCFlags.CityOnly) && !zone.Flags.HasFlag(AreaFlags.Capital))
                 return false;
 
             if (channel.Flags.HasAnyFlag(ChannelDBCFlags.GuildReq) && GetGuildId() != 0)
@@ -4491,7 +4491,7 @@ namespace Game.Entities
             AreaTableRecord zone = CliDB.AreaTableStorage.LookupByKey(GetAreaId());
 
             // Such zones are considered unreachable as a ghost and the player must be automatically revived
-            if ((!IsAlive() && zone != null && zone.Flags[0].HasAnyFlag(AreaFlags.NeedFly)) || GetTransport() != null || GetPositionZ() < GetMap().GetMinHeight(GetPhaseShift(), GetPositionX(), GetPositionY()))
+            if ((!IsAlive() && zone != null && zone.Flags.HasFlag(AreaFlags.NeedFly)) || GetTransport() != null || GetPositionZ() < GetMap().GetMinHeight(GetPhaseShift(), GetPositionX(), GetPositionY()))
             {
                 ResurrectPlayer(0.5f);
                 SpawnCorpseBones();
@@ -4992,6 +4992,38 @@ namespace Game.Entities
             return true;
         }
 
+        bool IsInFriendlyArea()
+        {
+            var areaEntry = CliDB.AreaTableStorage.LookupByKey(GetAreaId());
+            if (areaEntry != null)
+                return IsFriendlyArea(areaEntry);
+
+            return false;
+        }
+
+        bool IsFriendlyArea(AreaTableRecord areaEntry)
+        {
+            Cypher.Assert(areaEntry != null);
+
+            var factionTemplate = GetFactionTemplateEntry();
+            if (factionTemplate == null)
+                return false;
+
+            if ((factionTemplate.FriendGroup & areaEntry.FactionGroupMask) == 0)
+                return false;
+
+            return true;
+        }
+
+        bool CanEnableWarModeInArea()
+        {
+            var area = CliDB.AreaTableStorage.LookupByKey(GetAreaId());
+            if (area == null || !IsFriendlyArea(area))
+                return false;
+
+            return area.Flags2.HasFlag(AreaFlags2.CanEnableWarMode);
+        }
+
         // Used in triggers for check "Only to targets that grant experience or honor" req
         public bool IsHonorOrXPTarget(Unit victim)
         {

Source/Game/Handlers/BattleGroundHandler.cs

@@ -652,7 +652,7 @@ namespace Game
             }
 
             AreaTableRecord atEntry = CliDB.AreaTableStorage.LookupByKey(GetPlayer().GetAreaId());
-            if (atEntry == null || !atEntry.Flags[0].HasAnyFlag(AreaFlags.CanHearthAndResurrect))
+            if (atEntry == null || !atEntry.Flags.HasFlag(AreaFlags.CanHearthAndResurrect))
                 return;
 
             GetPlayer().BuildPlayerRepop();

Source/Game/Maps/Map.cs

@@ -1783,9 +1783,9 @@ namespace Game.Maps
         {
             if (wmoEntry != null && atEntry != null)
             {
-                if (atEntry.Flags[0].HasAnyFlag(AreaFlags.Outside))
+                if (atEntry.Flags.HasFlag(AreaFlags.Outside))
                     return true;
-                if (atEntry.Flags[0].HasAnyFlag(AreaFlags.Inside))
+                if (atEntry.Flags.HasFlag(AreaFlags.Inside))
                     return false;
             }
 

Source/Game/Spells/Spell.cs

@@ -5460,7 +5460,7 @@ namespace Game.Spells
                                 BattleField Bf = Global.BattleFieldMgr.GetBattlefieldToZoneId(m_originalCaster.GetZoneId());
                                 var area = CliDB.AreaTableStorage.LookupByKey(m_originalCaster.GetAreaId());
                                 if (area != null)
-                                    if (area.Flags[0].HasAnyFlag(AreaFlags.NoFlyZone) || (Bf != null && !Bf.CanFlyIn()))
+                                    if (area.Flags.HasFlag(AreaFlags.NoFlyZone) || (Bf != null && !Bf.CanFlyIn()))
                                         return SpellCastResult.NotHere;
                             }
                             break;

Source/Game/Spells/SpellEffects.cs

@@ -3268,14 +3268,14 @@ namespace Game.Spells
 
             // Players can only fight a duel in zones with this flag
             AreaTableRecord casterAreaEntry = CliDB.AreaTableStorage.LookupByKey(caster.GetAreaId());
-            if (casterAreaEntry != null && !casterAreaEntry.Flags[0].HasAnyFlag(AreaFlags.AllowDuels))
+            if (casterAreaEntry != null && !casterAreaEntry.Flags.HasFlag(AreaFlags.AllowDuels))
             {
                 SendCastResult(SpellCastResult.NoDueling);            // Dueling isn't allowed here
                 return;
             }
 
             AreaTableRecord targetAreaEntry = CliDB.AreaTableStorage.LookupByKey(target.GetAreaId());
-            if (targetAreaEntry != null && !targetAreaEntry.Flags[0].HasAnyFlag(AreaFlags.AllowDuels))
+            if (targetAreaEntry != null && !targetAreaEntry.Flags.HasFlag(AreaFlags.AllowDuels))
             {
                 SendCastResult(SpellCastResult.NoDueling);            // Dueling isn't allowed here
                 return;