Core/SmartScripts: Implement SMART_ACTION_PLAY_CINEMATIC

Port From (https://github.com/TrinityCore/TrinityCore/commit/dad95d16b263b9c1cb8df6edac8043138fb4da9e)

Source/Framework/Constants/SmartAIConst.cs

@@ -389,7 +389,7 @@ namespace Framework.Constants
         DespawnSpawngroup = 132,    // Group ID, min secs, max secs, spawnflags
         RespawnBySpawnId = 133,    // spawnType, spawnId
         InvokerCast = 134, // spellID, castFlags
-        PlayCinematic = 135,    // reserved for future uses
+        PlayCinematic = 135,    // entry, cinematic
         SetMovementSpeed = 136,    // movementType, speedInteger, speedFraction
         PlaySpellVisualKit = 137, // spellVisualKitId, kitType (unknown values, copypaste from packet dumps), duration
         CreateConversation = 143, // conversation_template.id

Source/Game/AI/SmartScripts/SmartAIManager.cs

@@ -1412,6 +1412,16 @@ namespace Game.AI
                     }
                     break;
                 }
+                case SmartActions.PlayCinematic:
+                {
+                    if (!CliDB.CinematicSequencesStorage.ContainsKey(e.Action.cinematic.entry))
+                    {
+                        Log.outError(LogFilter.Sql, $"SmartAIMgr: SMART_ACTION_PLAY_CINEMATIC {e} uses invalid entry {e.Action.cinematic.entry}, skipped.");
+                        return false;
+                    }
+
+                    break;
+                }
                 case SmartActions.SetMovementSpeed:
                 {
                     if (e.Action.movementSpeed.movementType >= (int)MovementGeneratorType.Max)
@@ -2530,6 +2540,9 @@ namespace Game.AI
         [FieldOffset(4)]
         public Scene scene;
 
+        [FieldOffset(4)]
+        public Cinematic cinematic;
+
         [FieldOffset(4)]
         public MovementSpeed movementSpeed;
 
@@ -3045,6 +3058,10 @@ namespace Game.AI
         {
             public uint sceneId;
         }
+        public struct Cinematic
+        {
+            public uint entry;
+        }
         public struct MovementSpeed
         {
             public uint movementType;

Source/Game/AI/SmartScripts/SmartScript.cs

@@ -2438,6 +2438,17 @@ namespace Game.AI
 
                     break;
                 }
+                case SmartActions.PlayCinematic:
+                {
+                    foreach (WorldObject target in targets)
+                    {
+                        if (!IsPlayer(target))
+                            continue;
+
+                        target.ToPlayer().SendCinematicStart(e.Action.cinematic.entry);
+                    }
+                    break;
+                }
                 default:
                     Log.outError(LogFilter.Sql, "SmartScript.ProcessAction: Entry {0} SourceType {1}, Event {2}, Unhandled Action type {3}", e.EntryOrGuid, e.GetScriptType(), e.EventId, e.GetActionType());
                     break;