Core/DataStores: Implemented WorldStateExpression

12 files changed, 574 insertions, 9 deletions

diff --git a/src/server/database/Database/Implementation/HotfixDatabase.cpp b/src/server/database/Database/Implementation/HotfixDatabase.cpp
index e93d72bfb08..5dcc28fd544 100644
--- a/src/server/database/Database/Implementation/HotfixDatabase.cpp
+++ b/src/server/database/Database/Implementation/HotfixDatabase.cpp
@@ -1090,6 +1090,9 @@ void HotfixDatabaseConnection::DoPrepareStatements()
     // WorldSafeLocs.db2
     PrepareStatement(HOTFIX_SEL_WORLD_SAFE_LOCS, "SELECT ID, AreaName, LocX, LocY, LocZ, MapID, Facing FROM world_safe_locs ORDER BY ID DESC", CONNECTION_SYNCH);
     PREPARE_LOCALE_STMT(HOTFIX_SEL_WORLD_SAFE_LOCS, "SELECT ID, AreaName_lang FROM world_safe_locs_locale WHERE locale = ?", CONNECTION_SYNCH);
+
+    // WorldStateExpression.db2
+    PrepareStatement(HOTFIX_SEL_WORLD_STATE_EXPRESSION, "SELECT ID, Expression FROM world_state_expression ORDER BY ID DESC", CONNECTION_SYNCH);
 }
 
 HotfixDatabaseConnection::HotfixDatabaseConnection(MySQLConnectionInfo& connInfo) : MySQLConnection(connInfo)
diff --git a/src/server/database/Database/Implementation/HotfixDatabase.h b/src/server/database/Database/Implementation/HotfixDatabase.h
index e31704bebe7..18aa7c60cf7 100644
--- a/src/server/database/Database/Implementation/HotfixDatabase.h
+++ b/src/server/database/Database/Implementation/HotfixDatabase.h
@@ -572,6 +572,8 @@ enum HotfixDatabaseStatements : uint32
     HOTFIX_SEL_WORLD_SAFE_LOCS,
     HOTFIX_SEL_WORLD_SAFE_LOCS_LOCALE,
 
+    HOTFIX_SEL_WORLD_STATE_EXPRESSION,
+
     MAX_HOTFIXDATABASE_STATEMENTS
 };
 
diff --git a/src/server/game/Conditions/ConditionMgr.cpp b/src/server/game/Conditions/ConditionMgr.cpp
index 37c2e980459..598c1000758 100644
--- a/src/server/game/Conditions/ConditionMgr.cpp
+++ b/src/server/game/Conditions/ConditionMgr.cpp
@@ -23,6 +23,7 @@
 #include "DB2Stores.h"
 #include "GameEventMgr.h"
 #include "GameObject.h"
+#include "GameTime.h"
 #include "Group.h"
 #include "InstanceScript.h"
 #include "Item.h"
@@ -33,12 +34,14 @@
 #include "PhasingHandler.h"
 #include "Player.h"
 #include "Pet.h"
+#include "Realm.h"
 #include "ReputationMgr.h"
 #include "ScriptMgr.h"
 #include "SpellAuras.h"
 #include "SpellMgr.h"
 #include "World.h"
 #include "WorldSession.h"
+#include <random>
 
 char const* const ConditionMgr::StaticSourceTypeData[CONDITION_SOURCE_TYPE_MAX] =
 {
@@ -2771,7 +2774,17 @@ bool ConditionMgr::IsPlayerMeetingCondition(Player const* player, PlayerConditio
     }
 
     // TODO: time condition
-    // TODO (or not): world state expression condition
+
+    if (condition->WorldStateExpressionID)
+    {
+        WorldStateExpressionEntry const* worldStateExpression = sWorldStateExpressionStore.LookupEntry(condition->WorldStateExpressionID);
+        if (!worldStateExpression)
+            return false;
+
+        if (!IsPlayerMeetingExpression(player, worldStateExpression))
+            return false;
+    }
+
     // TODO: weather condition
 
     if (condition->Achievement[0])
@@ -2869,3 +2882,381 @@ bool ConditionMgr::IsPlayerMeetingCondition(Player const* player, PlayerConditio
 
     return true;
 }
+
+ByteBuffer HexToBytes(const std::string& hex)
+{
+    ByteBuffer buffer;
+    buffer.resize(hex.length() / 2);
+    HexStrToByteArray(hex, buffer.contents());
+    return buffer;
+}
+
+static int32(* const WorldStateExpressionFunctions[WSE_FUNCTION_MAX])(Player const*, uint32, uint32) =
+{
+    // WSE_FUNCTION_NONE
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_RANDOM
+    [](Player const* /*player*/, uint32 arg1, uint32 arg2) -> int32
+    {
+        return irand(std::min(arg1, arg2), std::max(arg1, arg2));
+    },
+
+    // WSE_FUNCTION_MONTH
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return GameTime::GetDateAndTime()->tm_mon + 1;
+    },
+
+    // WSE_FUNCTION_DAY
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return GameTime::GetDateAndTime()->tm_mday + 1;
+    },
+
+    // WSE_FUNCTION_TIME_OF_DAY
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        tm const* localTime = GameTime::GetDateAndTime();
+        return localTime->tm_hour * MINUTE + localTime->tm_min;
+    },
+
+    // WSE_FUNCTION_REGION
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return realm.Id.Region;
+    },
+
+    // WSE_FUNCTION_CLOCK_HOUR
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        uint32 currentHour = GameTime::GetDateAndTime()->tm_hour + 1;
+        return currentHour <= 12 ? (currentHour ? currentHour : 12) : currentHour - 12;
+    },
+
+    // WSE_FUNCTION_OLD_DIFFICULTY_ID
+    [](Player const* player, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        if (DifficultyEntry const* difficulty = sDifficultyStore.LookupEntry(player->GetMap()->GetDifficultyID()))
+            return difficulty->OldEnumValue;
+
+        return -1;
+    },
+
+    // WSE_FUNCTION_HOLIDAY_START
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_HOLIDAY_LEFT
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_HOLIDAY_ACTIVE
+    [](Player const* /*player*/, uint32 arg1, uint32 /*arg2*/) -> int32
+    {
+        return int32(IsHolidayActive(HolidayIds(arg1)));
+    },
+
+    // WSE_FUNCTION_TIMER_CURRENT_TIME
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return GameTime::GetGameTime();
+    },
+
+    // WSE_FUNCTION_WEEK_NUMBER
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        time_t now = GameTime::GetGameTime();
+        uint32 raidOrigin = 1135695600;
+        if (Cfg_RegionsEntry const* region = sCfgRegionsStore.LookupEntry(realm.Id.Region))
+            raidOrigin = region->Raidorigin;
+
+        return (now - raidOrigin) / WEEK;
+    },
+
+    // WSE_FUNCTION_UNK13
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_UNK14
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_DIFFICULTY_ID
+    [](Player const* player, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return player->GetMap()->GetDifficultyID();
+    },
+
+    // WSE_FUNCTION_WAR_MODE_ACTIVE
+    [](Player const* player, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return player->HasPlayerFlag(PLAYER_FLAGS_WAR_MODE_ACTIVE);
+    },
+
+    // WSE_FUNCTION_UNK17
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_UNK18
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_UNK19
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_UNK20
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_UNK21
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_WORLD_STATE_EXPRESSION
+    [](Player const* player, uint32 arg1, uint32 /*arg2*/) -> int32
+    {
+        if (WorldStateExpressionEntry const* worldStateExpression = sWorldStateExpressionStore.LookupEntry(arg1))
+            return ConditionMgr::IsPlayerMeetingExpression(player, worldStateExpression);
+
+        return 0;
+    },
+
+    // WSE_FUNCTION_KEYSTONE_AFFIX
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_UNK24
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_UNK25
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_UNK26
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_UNK27
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_KEYSTONE_LEVEL
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_UNK29
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_UNK30
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_UNK31
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_UNK32
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_MERSENNE_RANDOM
+    [](Player const* /*player*/, uint32 arg1, uint32 arg2) -> int32
+    {
+        if (arg1 == 1)
+            return 1;
+
+        // init with predetermined seed
+        std::mt19937 mt(arg2 ? arg2 : 1);
+        return mt() % arg1 + 1;
+    },
+
+    // WSE_FUNCTION_UNK34
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_UNK35
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_UNK36
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+    // WSE_FUNCTION_UI_WIDGET_DATA
+    [](Player const* /*player*/, uint32 /*arg1*/, uint32 /*arg2*/) -> int32
+    {
+        return 0;
+    },
+
+};
+
+int32 EvalSingleValue(ByteBuffer& buffer, Player const* player)
+{
+    WorldStateExpressionValueType valueType = buffer.read<WorldStateExpressionValueType>();
+    int32 value = 0;
+
+    switch (valueType)
+    {
+        case WorldStateExpressionValueType::Constant:
+        {
+            value = buffer.read<int32>();
+            break;
+        }
+        case WorldStateExpressionValueType::WorldState:
+        {
+            uint32 worldStateId = buffer.read<uint32>();
+            value = sWorld->getWorldState(worldStateId);
+            break;
+        }
+        case WorldStateExpressionValueType::Function:
+        {
+            uint32 functionType = buffer.read<uint32>();
+            int32 arg1 = EvalSingleValue(buffer, player);
+            int32 arg2 = EvalSingleValue(buffer, player);
+
+            if (functionType >= WSE_FUNCTION_MAX)
+                return 0;
+
+            value = WorldStateExpressionFunctions[functionType](player, arg1, arg2);
+        }
+        default:
+            break;
+    }
+
+    return value;
+}
+
+int32 EvalValue(ByteBuffer& buffer, Player const* player)
+{
+    int32 leftValue = EvalSingleValue(buffer, player);
+
+    WorldStateExpressionOperatorType operatorType = buffer.read<WorldStateExpressionOperatorType>();
+    if (operatorType == WorldStateExpressionOperatorType::None)
+        return leftValue;
+
+    int32 rightValue = EvalSingleValue(buffer, player);
+
+    switch (operatorType)
+    {
+        case WorldStateExpressionOperatorType::Sum:             return leftValue + rightValue;
+        case WorldStateExpressionOperatorType::Substraction:    return leftValue - rightValue;
+        case WorldStateExpressionOperatorType::Multiplication:  return leftValue * rightValue;
+        case WorldStateExpressionOperatorType::Division:        return !rightValue ? 0 : leftValue / rightValue;
+        case WorldStateExpressionOperatorType::Remainder:       return !rightValue ? 0 : leftValue % rightValue;
+        default:
+            break;
+    }
+
+    return leftValue;
+}
+
+bool EvalRelOp(ByteBuffer& buffer, Player const* player)
+{
+    int32 leftValue = EvalValue(buffer, player);
+
+    WorldStateExpressionComparisonType compareLogic = buffer.read<WorldStateExpressionComparisonType>();
+    if (compareLogic == WorldStateExpressionComparisonType::None)
+        return leftValue != 0;
+
+    int32 rightValue = EvalValue(buffer, player);
+
+    switch (compareLogic)
+    {
+        case WorldStateExpressionComparisonType::Equal:             return leftValue == rightValue;
+        case WorldStateExpressionComparisonType::NotEqual:          return leftValue != rightValue;
+        case WorldStateExpressionComparisonType::Less:              return leftValue <  rightValue;
+        case WorldStateExpressionComparisonType::LessOrEqual:       return leftValue <= rightValue;
+        case WorldStateExpressionComparisonType::Greater:           return leftValue >  rightValue;
+        case WorldStateExpressionComparisonType::GreaterOrEqual:    return leftValue >= rightValue;
+        default:
+            break;
+    }
+
+    return false;
+}
+
+bool ConditionMgr::IsPlayerMeetingExpression(Player const* player, WorldStateExpressionEntry const* expression)
+{
+    ByteBuffer buffer = HexToBytes(expression->Expression);
+    if (buffer.empty())
+        return false;
+
+    bool enabled = buffer.read<bool>();
+    if (!enabled)
+        return false;
+
+    bool finalResult = EvalRelOp(buffer, player);
+    WorldStateExpressionLogic resultLogic = buffer.read<WorldStateExpressionLogic>();
+
+    while (resultLogic != WorldStateExpressionLogic::None)
+    {
+        bool secondResult = EvalRelOp(buffer, player);
+
+        switch (resultLogic)
+        {
+            case WorldStateExpressionLogic::And: finalResult = finalResult && secondResult; break;
+            case WorldStateExpressionLogic::Or:  finalResult = finalResult || secondResult; break;
+            case WorldStateExpressionLogic::Xor: finalResult = finalResult != secondResult; break;
+            default:
+                break;
+        }
+
+        if (buffer.rpos() < buffer.size())
+            break;
+
+        resultLogic = buffer.read<WorldStateExpressionLogic>();
+    }
+
+    return finalResult;
+}
diff --git a/src/server/game/Conditions/ConditionMgr.h b/src/server/game/Conditions/ConditionMgr.h
index 618931fa2cd..eab6c09b16f 100644
--- a/src/server/game/Conditions/ConditionMgr.h
+++ b/src/server/game/Conditions/ConditionMgr.h
@@ -32,6 +32,7 @@ class WorldObject;
 class LootTemplate;
 struct Condition;
 struct PlayerConditionEntry;
+struct WorldStateExpressionEntry;
 
 /*! Documentation on implementing a new ConditionType:
     Step 1: Check for the lowest free ID. Look for CONDITION_UNUSED_XX in the enum.
@@ -286,6 +287,7 @@ class TC_GAME_API ConditionMgr
         bool IsObjectMeetingVendorItemConditions(uint32 creatureId, uint32 itemId, Player* player, Creature* vendor) const;
 
         static bool IsPlayerMeetingCondition(Player const* player, PlayerConditionEntry const* condition);
+        static bool IsPlayerMeetingExpression(Player const* player, WorldStateExpressionEntry const* expression);
 
         struct ConditionTypeInfo
         {
diff --git a/src/server/game/DataStores/DB2LoadInfo.h b/src/server/game/DataStores/DB2LoadInfo.h
index 7e5a4c66c71..63d1f7382ca 100644
--- a/src/server/game/DataStores/DB2LoadInfo.h
+++ b/src/server/game/DataStores/DB2LoadInfo.h
@@ -5558,4 +5558,18 @@ struct WorldSafeLocsLoadInfo
     }
 };
 
+struct WorldStateExpressionLoadInfo
+{
+    static DB2LoadInfo const* Instance()
+    {
+        static DB2FieldMeta const fields[] =
+        {
+            { false, FT_INT, "ID" },
+            { false, FT_STRING_NOT_LOCALIZED, "Expression" },
+        };
+        static DB2LoadInfo const loadInfo(&fields[0], std::extent<decltype(fields)>::value, WorldStateExpressionMeta::Instance(), HOTFIX_SEL_WORLD_STATE_EXPRESSION);
+        return &loadInfo;
+    }
+};
+
 #endif // DB2LoadInfo_h__
diff --git a/src/server/game/DataStores/DB2Stores.cpp b/src/server/game/DataStores/DB2Stores.cpp
index 6b5731d0bb9..9f933d962c3 100644
--- a/src/server/game/DataStores/DB2Stores.cpp
+++ b/src/server/game/DataStores/DB2Stores.cpp
@@ -275,6 +275,7 @@ DB2Storage<WMOAreaTableEntry>                   sWMOAreaTableStore("WMOAreaTable
 DB2Storage<WorldEffectEntry>                    sWorldEffectStore("WorldEffect.db2", WorldEffectLoadInfo::Instance());
 DB2Storage<WorldMapOverlayEntry>                sWorldMapOverlayStore("WorldMapOverlay.db2", WorldMapOverlayLoadInfo::Instance());
 DB2Storage<WorldSafeLocsEntry>                  sWorldSafeLocsStore("WorldSafeLocs.db2", WorldSafeLocsLoadInfo::Instance());
+DB2Storage<WorldStateExpressionEntry>           sWorldStateExpressionStore("WorldStateExpression.db2", WorldStateExpressionLoadInfo::Instance());
 
 TaxiMask                                        sTaxiNodesMask;
 TaxiMask                                        sOldContinentsNodesMask;
@@ -733,6 +734,7 @@ void DB2Manager::LoadStores(std::string const& dataPath, uint32 defaultLocale)
     LOAD_DB2(sWorldEffectStore);
     LOAD_DB2(sWorldMapOverlayStore);
     LOAD_DB2(sWorldSafeLocsStore);
+    LOAD_DB2(sWorldStateExpressionStore);
 
 #undef LOAD_DB2
 
diff --git a/src/server/game/DataStores/DB2Stores.h b/src/server/game/DataStores/DB2Stores.h
index 3d224c857cb..5fbe3b0737a 100644
--- a/src/server/game/DataStores/DB2Stores.h
+++ b/src/server/game/DataStores/DB2Stores.h
@@ -58,6 +58,7 @@ TC_GAME_API extern DB2Storage<BattlePetSpeciesEntry>                sBattlePetSp
 TC_GAME_API extern DB2Storage<BattlePetSpeciesStateEntry>           sBattlePetSpeciesStateStore;
 TC_GAME_API extern DB2Storage<BattlemasterListEntry>                sBattlemasterListStore;
 TC_GAME_API extern DB2Storage<BroadcastTextEntry>                   sBroadcastTextStore;
+TC_GAME_API extern DB2Storage<Cfg_RegionsEntry>                     sCfgRegionsStore;
 TC_GAME_API extern DB2Storage<CharStartOutfitEntry>                 sCharStartOutfitStore;
 TC_GAME_API extern DB2Storage<CharTitlesEntry>                      sCharTitlesStore;
 TC_GAME_API extern DB2Storage<ChatChannelsEntry>                    sChatChannelsStore;
@@ -210,6 +211,7 @@ TC_GAME_API extern DB2Storage<VehicleSeatEntry>                     sVehicleSeat
 TC_GAME_API extern DB2Storage<WorldEffectEntry>                     sWorldEffectStore;
 TC_GAME_API extern DB2Storage<WorldMapOverlayEntry>                 sWorldMapOverlayStore;
 TC_GAME_API extern DB2Storage<WorldSafeLocsEntry>                   sWorldSafeLocsStore;
+TC_GAME_API extern DB2Storage<WorldStateExpressionEntry>            sWorldStateExpressionStore;
 
 struct TaxiPathBySourceAndDestination
 {
diff --git a/src/server/game/DataStores/DB2Structure.h b/src/server/game/DataStores/DB2Structure.h
index 71958a94791..a9dac88860e 100644
--- a/src/server/game/DataStores/DB2Structure.h
+++ b/src/server/game/DataStores/DB2Structure.h
@@ -3272,5 +3272,11 @@ struct WorldSafeLocsEntry
     float Facing;
 };
 
+struct WorldStateExpressionEntry
+{
+    uint32 ID;
+    char const* Expression;
+};
+
 #pragma pack(pop)
 #endif
diff --git a/src/server/game/DataStores/DBCEnums.h b/src/server/game/DataStores/DBCEnums.h
index dd180cbdfd6..6bb6b4ebfa1 100644
--- a/src/server/game/DataStores/DBCEnums.h
+++ b/src/server/game/DataStores/DBCEnums.h
@@ -1177,4 +1177,84 @@ enum WorldMapTransformsFlags
     WORLD_MAP_TRANSFORMS_FLAG_DUNGEON   = 0x04
 };
 
+enum class WorldStateExpressionValueType : uint8
+{
+    Constant    = 1,
+    WorldState  = 2,
+    Function    = 3
+};
+
+enum class WorldStateExpressionLogic : uint8
+{
+    None    = 0,
+    And     = 1,
+    Or      = 2,
+    Xor     = 3,
+};
+
+enum class WorldStateExpressionComparisonType : uint8
+{
+    None            = 0,
+    Equal           = 1,
+    NotEqual        = 2,
+    Less            = 3,
+    LessOrEqual     = 4,
+    Greater         = 5,
+    GreaterOrEqual  = 6,
+};
+
+enum class WorldStateExpressionOperatorType : uint8
+{
+    None            = 0,
+    Sum             = 1,
+    Substraction    = 2,
+    Multiplication  = 3,
+    Division        = 4,
+    Remainder       = 5,
+};
+
+enum WorldStateExpressionFunctions
+{
+    WSE_FUNCTION_NONE = 0,
+    WSE_FUNCTION_RANDOM,
+    WSE_FUNCTION_MONTH,
+    WSE_FUNCTION_DAY,
+    WSE_FUNCTION_TIME_OF_DAY,
+    WSE_FUNCTION_REGION,
+    WSE_FUNCTION_CLOCK_HOUR,
+    WSE_FUNCTION_OLD_DIFFICULTY_ID,
+    WSE_FUNCTION_HOLIDAY_START,
+    WSE_FUNCTION_HOLIDAY_LEFT,
+    WSE_FUNCTION_HOLIDAY_ACTIVE,
+    WSE_FUNCTION_TIMER_CURRENT_TIME,
+    WSE_FUNCTION_WEEK_NUMBER,
+    WSE_FUNCTION_UNK13,
+    WSE_FUNCTION_UNK14,
+    WSE_FUNCTION_DIFFICULTY_ID,
+    WSE_FUNCTION_WAR_MODE_ACTIVE,
+    WSE_FUNCTION_UNK17,
+    WSE_FUNCTION_UNK18,
+    WSE_FUNCTION_UNK19,
+    WSE_FUNCTION_UNK20,
+    WSE_FUNCTION_UNK21,
+    WSE_FUNCTION_WORLD_STATE_EXPRESSION,
+    WSE_FUNCTION_KEYSTONE_AFFIX,
+    WSE_FUNCTION_UNK24,
+    WSE_FUNCTION_UNK25,
+    WSE_FUNCTION_UNK26,
+    WSE_FUNCTION_UNK27,
+    WSE_FUNCTION_KEYSTONE_LEVEL,
+    WSE_FUNCTION_UNK29,
+    WSE_FUNCTION_UNK30,
+    WSE_FUNCTION_UNK31,
+    WSE_FUNCTION_UNK32,
+    WSE_FUNCTION_MERSENNE_RANDOM,
+    WSE_FUNCTION_UNK34,
+    WSE_FUNCTION_UNK35,
+    WSE_FUNCTION_UNK36,
+    WSE_FUNCTION_UI_WIDGET_DATA,
+
+    WSE_FUNCTION_MAX,
+};
+
 #endif
diff --git a/src/server/game/Entities/Player/Player.h b/src/server/game/Entities/Player/Player.h
index ea3dc0021ca..879b7499e10 100644
--- a/src/server/game/Entities/Player/Player.h
+++ b/src/server/game/Entities/Player/Player.h
@@ -405,8 +405,8 @@ enum PlayerFlags
     PLAYER_FLAGS_UNK7                   = 0x00000080,       // pre-3.0.3 PLAYER_FLAGS_FFA_PVP flag for FFA PVP state
     PLAYER_FLAGS_CONTESTED_PVP          = 0x00000100,       // Player has been involved in a PvP combat and will be attacked by contested guards
     PLAYER_FLAGS_IN_PVP                 = 0x00000200,
-    PLAYER_FLAGS_HIDE_HELM              = 0x00000400,
-    PLAYER_FLAGS_HIDE_CLOAK             = 0x00000800,
+    PLAYER_FLAGS_WAR_MODE_ACTIVE        = 0x00000400,
+    PLAYER_FLAGS_WAR_MODE_DESIRED       = 0x00000800,
     PLAYER_FLAGS_PLAYED_LONG_TIME       = 0x00001000,       // played long time
     PLAYER_FLAGS_PLAYED_TOO_LONG        = 0x00002000,       // played too long time
     PLAYER_FLAGS_IS_OUT_OF_BOUNDS       = 0x00004000,
diff --git a/src/server/game/Server/Packets/CharacterPackets.cpp b/src/server/game/Server/Packets/CharacterPackets.cpp
index 1739ef13eb9..981ac12d226 100644
--- a/src/server/game/Server/Packets/CharacterPackets.cpp
+++ b/src/server/game/Server/Packets/CharacterPackets.cpp
@@ -67,12 +67,6 @@ WorldPackets::Character::EnumCharactersResult::CharacterInfo::CharacterInfo(Fiel
     if (atLoginFlags & AT_LOGIN_RESURRECT)
         playerFlags &= ~PLAYER_FLAGS_GHOST;
 
-    if (playerFlags & PLAYER_FLAGS_HIDE_HELM)
-        Flags |= CHARACTER_FLAG_HIDE_HELM;
-
-    if (playerFlags & PLAYER_FLAGS_HIDE_CLOAK)
-        Flags |= CHARACTER_FLAG_HIDE_CLOAK;
-
     if (playerFlags & PLAYER_FLAGS_GHOST)
         Flags |= CHARACTER_FLAG_GHOST;
 
diff --git a/src/server/scripts/Commands/cs_debug.cpp b/src/server/scripts/Commands/cs_debug.cpp
index edd69688e0e..e7b1db5060f 100644
--- a/src/server/scripts/Commands/cs_debug.cpp
+++ b/src/server/scripts/Commands/cs_debug.cpp
@@ -43,6 +43,7 @@ EndScriptData */
 #include "RBAC.h"
 #include "SpellPackets.h"
 #include "Transport.h"
+#include "World.h"
 #include "WorldSession.h"
 #include <fstream>
 #include <limits>
@@ -102,6 +103,8 @@ public:
             { "raidreset",     rbac::RBAC_PERM_COMMAND_INSTANCE_UNBIND,     false, &HandleDebugRaidResetCommand,        "" },
             { "neargraveyard", rbac::RBAC_PERM_COMMAND_NEARGRAVEYARD,       false, &HandleDebugNearGraveyard,           "" },
             { "conversation" , rbac::RBAC_PERM_COMMAND_DEBUG_CONVERSATION,  false, &HandleDebugConversationCommand,     "" },
+            { "worldstate" ,   rbac::RBAC_PERM_COMMAND_DEBUG,               false, &HandleDebugWorldStateCommand,       "" },
+            { "wsexpression" , rbac::RBAC_PERM_COMMAND_DEBUG,               false, &HandleDebugWSExpressionCommand,     "" },
         };
         static std::vector<ChatCommand> commandTable =
         {
@@ -1299,6 +1302,72 @@ public:
 
         return Conversation::CreateConversation(conversationEntry, target, *target, { target->GetGUID() }) != nullptr;
     }
+
+    static bool HandleDebugWorldStateCommand(ChatHandler* handler, char const* args)
+    {
+        if (!*args)
+            return false;
+
+        char const* worldStateIdStr = strtok((char*)args, " ");
+        char const* valueStr = args ? strtok(nullptr, " ") : nullptr;
+
+        if (!worldStateIdStr)
+            return false;
+
+        Player* target = handler->getSelectedPlayerOrSelf();
+
+        if (!target)
+        {
+            handler->SendSysMessage(LANG_PLAYER_NOT_FOUND);
+            handler->SetSentErrorMessage(true);
+            return false;
+        }
+
+        uint32 worldStateId = atoi(worldStateIdStr);
+        uint32 value = valueStr ? atoi(valueStr) : 0;
+
+        if (value)
+        {
+            sWorld->setWorldState(worldStateId, value);
+            target->SendUpdateWorldState(worldStateId, value);
+        }
+        else
+            handler->PSendSysMessage("Worldstate %u actual value : %u", worldStateId, sWorld->getWorldState(worldStateId));
+
+        return true;
+    }
+
+    static bool HandleDebugWSExpressionCommand(ChatHandler* handler, char const* args)
+    {
+        if (!*args)
+            return false;
+
+        char const* expressionIdStr = strtok((char*)args, " ");
+
+        if (!expressionIdStr)
+            return false;
+
+        uint32 expressionId = atoi(expressionIdStr);
+        Player* target = handler->getSelectedPlayerOrSelf();
+
+        if (!target)
+        {
+            handler->SendSysMessage(LANG_PLAYER_NOT_FOUND);
+            handler->SetSentErrorMessage(true);
+            return false;
+        }
+
+        WorldStateExpressionEntry const* wsExpressionEntry = sWorldStateExpressionStore.LookupEntry(expressionId);
+        if (!wsExpressionEntry)
+            return false;
+
+        if (sConditionMgr->IsPlayerMeetingExpression(target, wsExpressionEntry))
+            handler->PSendSysMessage("Expression %u meet", expressionId);
+        else
+            handler->PSendSysMessage("Expression %u not meet", expressionId);
+
+        return true;
+    };
 };
 
 void AddSC_debug_commandscript()