feat(Core/SAI): Implement SMART_TARGET_INSTANCE_STORAGE (#14981)

src/server/game/AI/SmartScripts/SmartScript.cpp

@@ -3367,6 +3367,33 @@ void SmartScript::GetTargets(ObjectVector& targets, SmartScriptHolder const& e,
             }
             break;
         }
+        case SMART_TARGET_INSTANCE_STORAGE:
+        {
+            if (InstanceScript* instance = GetBaseObject()->GetInstanceScript())
+            {
+                if (e.target.instanceStorage.type == 1)
+                {
+                    if (Creature* creature = instance->GetCreature(e.target.instanceStorage.index))
+                    {
+                        targets.push_back(creature);
+                    }
+                }
+                else if (e.target.instanceStorage.type == 2)
+                {
+                    if (GameObject* go = instance->GetGameObject(e.target.instanceStorage.index))
+                    {
+                        targets.push_back(go);
+                    }
+                }
+            }
+            else
+            {
+                LOG_ERROR("scripts.ai.sai", "SMART_TARGET_INSTANCE_STORAGE: Entry {} SourceType {} Event {} Action {} Target {} called outside an instance map.",
+                    e.entryOrGuid, e.GetScriptType(), e.event_id, e.GetActionType(), e.GetTargetType());
+            }
+
+            break;
+        }
         case SMART_TARGET_NONE:
         case SMART_TARGET_POSITION:
         default:

src/server/game/AI/SmartScripts/SmartScriptMgr.cpp

@@ -422,6 +422,16 @@ bool SmartAIMgr::IsTargetValid(SmartScriptHolder const& e)
             }
             break;
         }
+        case SMART_TARGET_INSTANCE_STORAGE:
+        {
+            if (e.target.instanceStorage.type != 1 && e.target.instanceStorage.type != 2)
+            {
+                LOG_ERROR("sql.sql", "SmartAIMgr: Entry {} SourceType {} Event {} Action {} has invalid instance storage type as target ({}).",
+                    e.entryOrGuid, e.GetScriptType(), e.GetEventType(), e.GetActionType(), e.target.instanceStorage.type);
+                return false;
+            }
+            break;
+        }
         case SMART_TARGET_HOSTILE_SECOND_AGGRO:
         case SMART_TARGET_HOSTILE_LAST_AGGRO:
         case SMART_TARGET_HOSTILE_RANDOM:

src/server/game/AI/SmartScripts/SmartScriptMgr.h

@@ -1426,6 +1426,7 @@ enum SMARTAI_TARGETS
     SMART_TARGET_RANDOM_POINT                   = 202,  // range, amount (for summoning creature), self als middle (0/1) else use xyz
     SMART_TARGET_ROLE_SELECTION                 = 203,  // Range Max, TargetMask (Tanks (1), Healer (2) Damage (4)), resize list
     SMART_TARGET_SUMMONED_CREATURES             = 204,  // Entry
+    SMART_TARGET_INSTANCE_STORAGE               = 205,  // Instance data index, Type (creature (1), gameobject (2))
 
     SMART_TARGET_AC_END                         = 205   // placeholder
 };
@@ -1595,6 +1596,12 @@ struct SmartTarget
             uint32 param3;
             uint32 param4;
         } raw;
+
+        struct
+        {
+            uint32 index;
+            uint32 type;
+        } instanceStorage;
     };
 };