Scripts/Ulduar: Fix some Flame Leviathan issues

Fix some Flame Leviathan issues:
- Fix boss evading all the time due to bad Doors check
- Opened "Lightning Door" to other bosses only after boss dies
- Eject players from the vehicles when boss dies, make them untargetable and despawn them after 5 minutes (adjust the time to the blizzlike time of choice)

(cherry picked from commit d888e4c7ad5ce48eb1f550b3e142dad16c026d0c)

1 files changed, 6 insertions, 2 deletions

diff --git a/src/server/game/Instances/InstanceScript.h b/src/server/game/Instances/InstanceScript.h
index acd511a402b..8c34e37976c 100644
--- a/src/server/game/Instances/InstanceScript.h
+++ b/src/server/game/Instances/InstanceScript.h
@@ -261,12 +261,16 @@ class InstanceScript : public ZoneScript
         void AddObject(GameObject* obj, bool add);
         void AddObject(WorldObject* obj, uint32 type, bool add);
 
-        void AddDoor(GameObject* door, bool add);
+        virtual void AddDoor(GameObject* door, bool add);
         void AddMinion(Creature* minion, bool add);
 
-        void UpdateDoorState(GameObject* door);
+        virtual void UpdateDoorState(GameObject* door);
         void UpdateMinionState(Creature* minion, EncounterState state);
 
+        // Exposes private data that should never be modified unless exceptional cases.
+        // Pay very much attention at how the returned BossInfo data is modified to avoid issues.
+        BossInfo* GetBossInfo(uint32 id);
+
         // Instance Load and Save
         bool ReadSaveDataHeaders(std::istringstream& data);
         void ReadSaveDataBossStates(std::istringstream& data);