feat(Core/SAI): implemented a new SAI action type SMART_ACTION_DO_ACTION (#8375)

* feat(Core/SAI): implemented a new SAI action type SMART_ACTION_DO_ACTION
This will give possibility to trigger certain actions on instance scripts or creatures/gobjects

* yet we still love you "blank line" xD

3 files changed, 57 insertions, 1 deletions

diff --git a/src/server/game/AI/SmartScripts/SmartScript.cpp b/src/server/game/AI/SmartScripts/SmartScript.cpp
index bf7a0b18ee..ae28629f9b 100644
--- a/src/server/game/AI/SmartScripts/SmartScript.cpp
+++ b/src/server/game/AI/SmartScripts/SmartScript.cpp
@@ -3232,6 +3232,54 @@ void SmartScript::ProcessAction(SmartScriptHolder& e, Unit* unit, uint32 var0, u
                 delete targets;
                 break;
             }
+        case SMART_ACTION_DO_ACTION:
+            {
+                int32 const actionId = e.action.doAction.isNegative ? -e.action.doAction.actionId : e.action.doAction.actionId;
+                if (!e.action.doAction.instanceTarget)
+                {
+                    ObjectList* targets = GetTargets(e, unit);
+                    if (!targets)
+                    {
+                        break;
+                    }
+
+                    for (WorldObject* objTarget : *targets)
+                    {
+                        if (Creature const* unitTarget = objTarget->ToCreature())
+                        {
+                            if (unitTarget->IsAIEnabled)
+                            {
+                                unitTarget->AI()->DoAction(actionId);
+                            }
+                        }
+                        else if (GameObject const* gobjTarget = objTarget->ToGameObject())
+                        {
+                            gobjTarget->AI()->DoAction(actionId);
+                        }
+                    }
+
+                    delete targets;
+                }
+                else
+                {
+                    InstanceScript* instanceScript = nullptr;
+                    if (WorldObject* baseObj = GetBaseObject())
+                    {
+                        instanceScript = baseObj->GetInstanceScript();
+                    }
+                    // Action is triggered by AreaTrigger
+                    else if (trigger && IsPlayer(unit))
+                    {
+                        instanceScript = unit->GetInstanceScript();
+                    }
+
+                    if (instanceScript)
+                    {
+                        instanceScript->DoAction(actionId);
+                    }
+                }
+                break;
+            }
         default:
             LOG_ERROR("sql.sql", "SmartScript::ProcessAction: Entry %d SourceType %u, Event %u, Unhandled Action type %u", e.entryOrGuid, e.GetScriptType(), e.event_id, e.GetActionType());
             break;
diff --git a/src/server/game/AI/SmartScripts/SmartScriptMgr.cpp b/src/server/game/AI/SmartScripts/SmartScriptMgr.cpp
index d3c1844885..dc66d22d90 100644
--- a/src/server/game/AI/SmartScripts/SmartScriptMgr.cpp
+++ b/src/server/game/AI/SmartScripts/SmartScriptMgr.cpp
@@ -1258,6 +1258,7 @@ bool SmartAIMgr::IsEventValid(SmartScriptHolder& e)
         case SMART_ACTION_VORTEX_SUMMON:
         case SMART_ACTION_PLAYER_TALK:
         case SMART_ACTION_CU_ENCOUNTER_START:
+        case SMART_ACTION_DO_ACTION:
             break;
         default:
             LOG_ERROR("sql.sql", "SmartAIMgr: Not handled action_type(%u), event_type(%u), Entry %d SourceType %u Event %u, skipped.", e.GetActionType(), e.GetEventType(), e.entryOrGuid, e.GetScriptType(), e.event_id);
diff --git a/src/server/game/AI/SmartScripts/SmartScriptMgr.h b/src/server/game/AI/SmartScripts/SmartScriptMgr.h
index 3288c3efc2..93532f3518 100644
--- a/src/server/game/AI/SmartScripts/SmartScriptMgr.h
+++ b/src/server/game/AI/SmartScripts/SmartScriptMgr.h
@@ -629,8 +629,9 @@ enum SMART_ACTION
     SMART_ACTION_PLAYER_TALK                        = 220,    // acore_string.entry, yell? (0/1)
     SMART_ACTION_VORTEX_SUMMON                      = 221,    // entry, duration (0 = perm), spiral scaling, spiral appearance, range max, phi_delta     <-- yes confusing math, try it ingame and see, my lovely AC boys!
     SMART_ACTION_CU_ENCOUNTER_START                 = 222,    // Resets cooldowns on all targets and removes Heroism debuff(s)
+    SMART_ACTION_DO_ACTION                          = 223,    // ActionId
 
-    SMART_ACTION_AC_END                             = 223,    // placeholder
+    SMART_ACTION_AC_END                             = 224,    // placeholder
 };
 
 struct SmartAction
@@ -1262,6 +1263,12 @@ struct SmartAction
             uint32 phi_delta;
         } summonVortex;
 
+        struct
+        {
+            uint32 actionId;
+            uint32 isNegative;
+            uint32 instanceTarget;
+        } doAction;
         //! Note for any new future actions
         //! All parameters must have type uint32