Core/Entities: Basic AreaTrigger System (#18035)

* Implemented AreaTrigger Templates
* Implemented AreaTrigger Splines
* Implemented SPELL_AURA_AREA_TRIGGER
* and many more

7 files changed, 215 insertions, 33 deletions

diff --git a/src/server/game/Server/Packets/AllPackets.h b/src/server/game/Server/Packets/AllPackets.h
index 034496d027d..732a8c1d081 100644
--- a/src/server/game/Server/Packets/AllPackets.h
+++ b/src/server/game/Server/Packets/AllPackets.h
@@ -19,6 +19,7 @@
 #define AllPackets_h__
 
 #include "AchievementPackets.h"
+#include "AreaTriggerPackets.h"
 #include "ArtifactPackets.h"
 #include "AuctionHousePackets.h"
 #include "AuthenticationPackets.h"
diff --git a/src/server/game/Server/Packets/AreaTriggerPackets.cpp b/src/server/game/Server/Packets/AreaTriggerPackets.cpp
new file mode 100644
index 00000000000..446a37534a9
--- /dev/null
+++ b/src/server/game/Server/Packets/AreaTriggerPackets.cpp
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2008-2017 TrinityCore <http://www.trinitycore.org/>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "AreaTriggerPackets.h"
+
+ByteBuffer& operator<<(ByteBuffer& data, WorldPackets::AreaTrigger::AreaTriggerSplineInfo const& areaTriggerSpline)
+{
+    data << uint32(areaTriggerSpline.TimeToTarget);
+    data << uint32(areaTriggerSpline.ElapsedTimeForMovement);
+
+    data.WriteBits(areaTriggerSpline.Points.size(), 16);
+    data.FlushBits();
+
+    for (G3D::Vector3 const& point : areaTriggerSpline.Points)
+        data << point;
+
+    return data;
+}
+
+ByteBuffer& operator<<(ByteBuffer& data, WorldPackets::AreaTrigger::AreaTriggerUnkTypeInfo const& areaTriggerUnkType)
+{
+    data.WriteBit(areaTriggerUnkType.AreaTriggerUnkGUID.is_initialized());
+    data.WriteBit(areaTriggerUnkType.Center.is_initialized());
+    data.WriteBit(areaTriggerUnkType.UnkBit1);
+    data.WriteBit(areaTriggerUnkType.UnkBit2);
+
+    data << uint32(areaTriggerUnkType.UnkUInt1);
+    data << int32(areaTriggerUnkType.UnkInt1);
+    data << uint32(areaTriggerUnkType.UnkUInt2);
+    data << float(areaTriggerUnkType.Radius);
+    data << float(areaTriggerUnkType.BlendFromRadius);
+    data << float(areaTriggerUnkType.InitialAngel);
+    data << float(areaTriggerUnkType.ZOffset);
+
+    if (areaTriggerUnkType.AreaTriggerUnkGUID)
+        data << *areaTriggerUnkType.AreaTriggerUnkGUID;
+
+    if (areaTriggerUnkType.Center)
+        data << *areaTriggerUnkType.Center;
+
+    return data;
+}
+
+void WorldPackets::AreaTrigger::AreaTrigger::Read()
+{
+    _worldPacket >> AreaTriggerID;
+    Entered = _worldPacket.ReadBit();
+    FromClient = _worldPacket.ReadBit();
+}
+
+WorldPacket const* WorldPackets::AreaTrigger::AreaTriggerDenied::Write()
+{
+    _worldPacket << int32(AreaTriggerID);
+    _worldPacket.WriteBit(Entered);
+    _worldPacket.FlushBits();
+
+    return &_worldPacket;
+}
+
+WorldPacket const* WorldPackets::AreaTrigger::AreaTriggerRePath::Write()
+{
+    _worldPacket << TriggerGUID;
+    _worldPacket << AreaTriggerSpline;
+
+    return &_worldPacket;
+}
+
+WorldPacket const* WorldPackets::AreaTrigger::AreaTriggerReShape::Write()
+{
+    _worldPacket << TriggerGUID;
+
+    _worldPacket.WriteBit(AreaTriggerSpline.is_initialized());
+    _worldPacket.WriteBit(AreaTriggerUnkType.is_initialized());
+    _worldPacket.FlushBits();
+
+    if (AreaTriggerSpline)
+        _worldPacket << *AreaTriggerSpline;
+
+    if (AreaTriggerUnkType)
+        _worldPacket << *AreaTriggerUnkType;
+
+    return &_worldPacket;
+}
diff --git a/src/server/game/Server/Packets/AreaTriggerPackets.h b/src/server/game/Server/Packets/AreaTriggerPackets.h
new file mode 100644
index 00000000000..967a8ba0f5f
--- /dev/null
+++ b/src/server/game/Server/Packets/AreaTriggerPackets.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2008-2017 TrinityCore <http://www.trinitycore.org/>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef AreaTriggerPackets_h__
+#define AreaTriggerPackets_h__
+
+#include "Packet.h"
+#include "PacketUtilities.h"
+#include "ObjectGuid.h"
+
+namespace WorldPackets
+{
+    namespace AreaTrigger
+    {
+        struct AreaTriggerSplineInfo
+        {
+            uint32 TimeToTarget = 0;
+            uint32 ElapsedTimeForMovement = 0;
+            std::vector<G3D::Vector3> Points;
+        };
+
+        struct AreaTriggerUnkTypeInfo
+        {
+            Optional<ObjectGuid> AreaTriggerUnkGUID;
+            Optional<G3D::Vector3> Center;
+            bool UnkBit1 = false;
+            bool UnkBit2 = false;
+            uint32 UnkUInt1 = 0;
+            int32 UnkInt1 = 0;
+            uint32 UnkUInt2 = 0;
+            float Radius = 0.0;
+            float BlendFromRadius = 0.0f;
+            float InitialAngel = 0.0f;
+            float ZOffset = 0.0f;
+        };
+
+        class AreaTrigger final : public ClientPacket
+        {
+        public:
+            AreaTrigger(WorldPacket&& packet) : ClientPacket(CMSG_AREA_TRIGGER, std::move(packet)) { }
+
+            void Read() override;
+
+            int32 AreaTriggerID = 0;
+            bool Entered = false;
+            bool FromClient = false;
+        };
+
+        class AreaTriggerDenied final : public ServerPacket
+        {
+        public:
+            AreaTriggerDenied() : ServerPacket(SMSG_AREA_TRIGGER_DENIED, 5) { }
+
+            int32 AreaTriggerID = 0;
+            bool Entered = false;
+
+            WorldPacket const* Write() override;
+        };
+
+        class AreaTriggerNoCorpse final : public ServerPacket
+        {
+        public:
+            AreaTriggerNoCorpse() : ServerPacket(SMSG_AREA_TRIGGER_NO_CORPSE, 0) { }
+
+            WorldPacket const* Write() override { return &_worldPacket; }
+        };
+
+        class AreaTriggerRePath final : public ServerPacket
+        {
+        public:
+            AreaTriggerRePath() : ServerPacket(SMSG_AREA_TRIGGER_RE_PATH, 50) { }
+
+            WorldPacket const* Write() override;
+
+            AreaTriggerSplineInfo AreaTriggerSpline;
+            ObjectGuid TriggerGUID;
+        };
+
+        class AreaTriggerReShape final : public ServerPacket
+        {
+        public:
+            AreaTriggerReShape() : ServerPacket(SMSG_AREA_TRIGGER_RE_SHAPE, 17) { }
+
+            WorldPacket const* Write() override;
+
+            Optional<AreaTriggerSplineInfo> AreaTriggerSpline;
+            Optional<AreaTriggerUnkTypeInfo> AreaTriggerUnkType;
+            ObjectGuid TriggerGUID;
+        };
+    }
+}
+
+#endif // AreaTriggerPackets_h__
diff --git a/src/server/game/Server/Packets/MiscPackets.cpp b/src/server/game/Server/Packets/MiscPackets.cpp
index 18e46e81356..4880b750319 100644
--- a/src/server/game/Server/Packets/MiscPackets.cpp
+++ b/src/server/game/Server/Packets/MiscPackets.cpp
@@ -178,13 +178,6 @@ WorldPacket const* WorldPackets::Misc::WorldServerInfo::Write()
     return &_worldPacket;
 }
 
-void WorldPackets::Misc::AreaTrigger::Read()
-{
-    _worldPacket >> AreaTriggerID;
-    Entered = _worldPacket.ReadBit();
-    FromClient = _worldPacket.ReadBit();
-}
-
 void WorldPackets::Misc::SetDungeonDifficulty::Read()
 {
     _worldPacket >> DifficultyID;
diff --git a/src/server/game/Server/Packets/MiscPackets.h b/src/server/game/Server/Packets/MiscPackets.h
index becb5c81661..b9ee1dd0480 100644
--- a/src/server/game/Server/Packets/MiscPackets.h
+++ b/src/server/game/Server/Packets/MiscPackets.h
@@ -247,18 +247,6 @@ namespace WorldPackets
             Optional<uint32> InstanceGroupSize;
         };
 
-        class AreaTrigger final : public ClientPacket
-        {
-        public:
-            AreaTrigger(WorldPacket&& packet) : ClientPacket(CMSG_AREA_TRIGGER, std::move(packet)) { }
-
-            void Read() override;
-
-            int32 AreaTriggerID = 0;
-            bool Entered = false;
-            bool FromClient = false;
-        };
-
         class SetDungeonDifficulty final : public ClientPacket
         {
         public:
@@ -390,15 +378,7 @@ namespace WorldPackets
             uint32 Response = 0;
         };
 
-        class AreaTriggerNoCorpse final : public ServerPacket
-        {
-        public:
-            AreaTriggerNoCorpse() : ServerPacket(SMSG_AREA_TRIGGER_NO_CORPSE, 0) { }
-
-            WorldPacket const* Write() override { return &_worldPacket; }
-        };
-
-        class TC_GAME_API  Weather final : public ServerPacket
+        class TC_GAME_API Weather final : public ServerPacket
         {
         public:
             Weather();
diff --git a/src/server/game/Server/Protocol/Opcodes.cpp b/src/server/game/Server/Protocol/Opcodes.cpp
index 26f151a5d2b..7bc9b2c59d0 100644
--- a/src/server/game/Server/Protocol/Opcodes.cpp
+++ b/src/server/game/Server/Protocol/Opcodes.cpp
@@ -857,10 +857,10 @@ void OpcodeTable::Initialize()
     DEFINE_SERVER_OPCODE_HANDLER(SMSG_ALL_GUILD_ACHIEVEMENTS,                  STATUS_NEVER,        CONNECTION_TYPE_REALM);
     DEFINE_SERVER_OPCODE_HANDLER(SMSG_ARCHAEOLOGY_SURVERY_CAST,                STATUS_UNHANDLED,    CONNECTION_TYPE_REALM);
     DEFINE_SERVER_OPCODE_HANDLER(SMSG_AREA_SPIRIT_HEALER_TIME,                 STATUS_NEVER,        CONNECTION_TYPE_REALM);
-    DEFINE_SERVER_OPCODE_HANDLER(SMSG_AREA_TRIGGER_DENIED,                     STATUS_UNHANDLED,    CONNECTION_TYPE_REALM);
+    DEFINE_SERVER_OPCODE_HANDLER(SMSG_AREA_TRIGGER_DENIED,                     STATUS_NEVER,        CONNECTION_TYPE_REALM);
     DEFINE_SERVER_OPCODE_HANDLER(SMSG_AREA_TRIGGER_NO_CORPSE,                  STATUS_NEVER,        CONNECTION_TYPE_REALM);
-    DEFINE_SERVER_OPCODE_HANDLER(SMSG_AREA_TRIGGER_RE_PATH,                    STATUS_UNHANDLED,    CONNECTION_TYPE_REALM);
-    DEFINE_SERVER_OPCODE_HANDLER(SMSG_AREA_TRIGGER_RE_SHAPE,                   STATUS_UNHANDLED,    CONNECTION_TYPE_REALM);
+    DEFINE_SERVER_OPCODE_HANDLER(SMSG_AREA_TRIGGER_RE_PATH,                    STATUS_NEVER,        CONNECTION_TYPE_REALM);
+    DEFINE_SERVER_OPCODE_HANDLER(SMSG_AREA_TRIGGER_RE_SHAPE,                   STATUS_NEVER,        CONNECTION_TYPE_REALM);
     DEFINE_SERVER_OPCODE_HANDLER(SMSG_ARENA_ERROR,                             STATUS_UNHANDLED,    CONNECTION_TYPE_REALM);
     DEFINE_SERVER_OPCODE_HANDLER(SMSG_ARENA_PREP_OPPONENT_SPECIALIZATIONS,     STATUS_UNHANDLED,    CONNECTION_TYPE_REALM);
     DEFINE_SERVER_OPCODE_HANDLER(SMSG_ARTIFACT_APPEARANCE_CHANGED,             STATUS_UNHANDLED,    CONNECTION_TYPE_REALM);
diff --git a/src/server/game/Server/WorldSession.h b/src/server/game/Server/WorldSession.h
index dd5c32133c3..1469a1f1d4f 100644
--- a/src/server/game/Server/WorldSession.h
+++ b/src/server/game/Server/WorldSession.h
@@ -81,6 +81,11 @@ namespace WorldPackets
         class GuildGetAchievementMembers;
     }
 
+    namespace AreaTrigger
+    {
+        class AreaTrigger;
+    }
+
     namespace Artifact
     {
         class ArtifactAddPower;
@@ -405,7 +410,6 @@ namespace WorldPackets
 
     namespace Misc
     {
-        class AreaTrigger;
         class SetSelection;
         class ViolenceLevel;
         class TimeSyncResponse;
@@ -1228,7 +1232,7 @@ class TC_GAME_API WorldSession
         void HandleDelIgnoreOpcode(WorldPackets::Social::DelIgnore& packet);
         void HandleSetContactNotesOpcode(WorldPackets::Social::SetContactNotes& packet);
 
-        void HandleAreaTriggerOpcode(WorldPackets::Misc::AreaTrigger& packet);
+        void HandleAreaTriggerOpcode(WorldPackets::AreaTrigger::AreaTrigger& packet);
 
         void HandleSetFactionAtWar(WorldPackets::Character::SetFactionAtWar& packet);
         void HandleSetFactionNotAtWar(WorldPackets::Character::SetFactionNotAtWar& packet);