Core/GameObjects: Implemented gameobject_addon table, you can now set invisibility for gameobjects for quests

(cherry picked from commit 9d59d038f8b09ed036448e755cb0b102396a4ca1)

Conflicts:
	sql/updates/world/2015_04_05_07_world.sql
	src/server/game/Globals/ObjectMgr.cpp
	src/server/game/Globals/ObjectMgr.h

Core/GameObjects: fixed typo and logic (0 is a valid invisibility type)

(cherry picked from commit 23e8a3ce2928458649d94408d5deffb67339b1d6)

2 files changed, 19 insertions, 0 deletions

diff --git a/src/server/game/Entities/GameObject/GameObject.cpp b/src/server/game/Entities/GameObject/GameObject.cpp
index 1290b5f0019..5ebb10e76c7 100644
--- a/src/server/game/Entities/GameObject/GameObject.cpp
+++ b/src/server/game/Entities/GameObject/GameObject.cpp
@@ -271,6 +271,16 @@ bool GameObject::Create(uint32 guidlow, uint32 name_id, Map* map, uint32 phaseMa
             SetGoAnimProgress(animprogress);
             break;
     }
+
+    if (GameObjectAddon const* addon = sObjectMgr->GetGameObjectAddon(guidlow))
+    {
+        if (addon->InvisibilityValue)
+        {
+            m_invisibility.AddFlag(addon->InvisibilityType);
+            m_invisibility.AddValue(addon->InvisibilityType, addon->InvisibilityValue);
+        }
+    }
+
     LastUsedScriptID = GetGOInfo()->ScriptId;
     AIM_Initialize();
 
diff --git a/src/server/game/Entities/GameObject/GameObject.h b/src/server/game/Entities/GameObject/GameObject.h
index b3e8510e2fb..fa081369334 100644
--- a/src/server/game/Entities/GameObject/GameObject.h
+++ b/src/server/game/Entities/GameObject/GameObject.h
@@ -576,6 +576,15 @@ struct GameObjectLocale
     StringVector CastBarCaption;
 };
 
+// `gameobject_addon` table
+struct GameObjectAddon
+{
+    InvisibilityType InvisibilityType;
+    uint32 InvisibilityValue;
+};
+
+typedef std::unordered_map<ObjectGuid::LowType, GameObjectAddon> GameObjectAddonContainer;
+
 // client side GO show states
 enum GOState
 {