feat(Core/Conditions): Add new Source Type Gossip Hello. (#25413)

Co-authored-by: sogladev <sogladev@gmail.com>

src/server/game/Conditions/ConditionMgr.cpp

@@ -974,7 +974,7 @@ bool ConditionMgr::IsObjectMeetToConditions(ConditionSourceInfo& sourceInfo, Con
 bool ConditionMgr::CanHaveSourceGroupSet(ConditionSourceType sourceType) const
 {
     return (sourceType == CONDITION_SOURCE_TYPE_CREATURE_LOOT_TEMPLATE || sourceType == CONDITION_SOURCE_TYPE_DISENCHANT_LOOT_TEMPLATE || sourceType == CONDITION_SOURCE_TYPE_FISHING_LOOT_TEMPLATE || sourceType == CONDITION_SOURCE_TYPE_GAMEOBJECT_LOOT_TEMPLATE || sourceType == CONDITION_SOURCE_TYPE_ITEM_LOOT_TEMPLATE || sourceType == CONDITION_SOURCE_TYPE_MAIL_LOOT_TEMPLATE || sourceType == CONDITION_SOURCE_TYPE_MILLING_LOOT_TEMPLATE ||
-            sourceType == CONDITION_SOURCE_TYPE_PICKPOCKETING_LOOT_TEMPLATE || sourceType == CONDITION_SOURCE_TYPE_PROSPECTING_LOOT_TEMPLATE || sourceType == CONDITION_SOURCE_TYPE_REFERENCE_LOOT_TEMPLATE || sourceType == CONDITION_SOURCE_TYPE_SKINNING_LOOT_TEMPLATE || sourceType == CONDITION_SOURCE_TYPE_SPELL_LOOT_TEMPLATE || sourceType == CONDITION_SOURCE_TYPE_GOSSIP_MENU || sourceType == CONDITION_SOURCE_TYPE_GOSSIP_MENU_OPTION || sourceType == CONDITION_SOURCE_TYPE_VEHICLE_SPELL ||
+            sourceType == CONDITION_SOURCE_TYPE_PICKPOCKETING_LOOT_TEMPLATE || sourceType == CONDITION_SOURCE_TYPE_PROSPECTING_LOOT_TEMPLATE || sourceType == CONDITION_SOURCE_TYPE_REFERENCE_LOOT_TEMPLATE || sourceType == CONDITION_SOURCE_TYPE_SKINNING_LOOT_TEMPLATE || sourceType == CONDITION_SOURCE_TYPE_SPELL_LOOT_TEMPLATE || sourceType == CONDITION_SOURCE_TYPE_GOSSIP_MENU || sourceType == CONDITION_SOURCE_TYPE_GOSSIP_MENU_OPTION || sourceType == CONDITION_SOURCE_TYPE_VEHICLE_SPELL || sourceType == CONDITION_SOURCE_TYPE_GOSSIP_HELLO ||
             sourceType == CONDITION_SOURCE_TYPE_SPELL_IMPLICIT_TARGET || sourceType == CONDITION_SOURCE_TYPE_SPELL_CLICK_EVENT || sourceType == CONDITION_SOURCE_TYPE_SMART_EVENT || sourceType == CONDITION_SOURCE_TYPE_NPC_VENDOR || sourceType == CONDITION_SOURCE_TYPE_PLAYER_LOOT_TEMPLATE);
 }
 
@@ -1808,9 +1808,15 @@ bool ConditionMgr::isSourceTypeValid(Condition* cond)
             return false;
         }
         break;
-    case CONDITION_SOURCE_TYPE_UNUSED_20:
-        LOG_ERROR("sql.sql", "CONDITION_SOURCE_TYPE_UNUSED_20 is not in use. SourceEntry = ({}), skipped", cond->SourceEntry);
+    case CONDITION_SOURCE_TYPE_GOSSIP_HELLO:
+    {
+        if (!sObjectMgr->GetCreatureTemplate(cond->SourceEntry))
+        {
+            LOG_ERROR("sql.sql", "CONDITION_SOURCE_TYPE_GOSSIP_HELLO: creature entry {} in `condition` table does not exist in `creature_template`, ignoring.", cond->SourceEntry);
+            return false;
+        }
         break;
+    }
     case CONDITION_SOURCE_TYPE_VEHICLE_SPELL:
     case CONDITION_SOURCE_TYPE_SPELL_CLICK_EVENT:
         if (!sObjectMgr->GetCreatureTemplate(cond->SourceGroup))

src/server/game/Conditions/ConditionMgr.h

@@ -142,7 +142,7 @@ enum ConditionSourceType
     CONDITION_SOURCE_TYPE_SPELL                          = 17,
     CONDITION_SOURCE_TYPE_SPELL_CLICK_EVENT              = 18,
     CONDITION_SOURCE_TYPE_QUEST_AVAILABLE                = 19,
-    CONDITION_SOURCE_TYPE_UNUSED_20                      = 20, // placeholder
+    CONDITION_SOURCE_TYPE_GOSSIP_HELLO                   = 20,
     CONDITION_SOURCE_TYPE_VEHICLE_SPELL                  = 21,
     CONDITION_SOURCE_TYPE_SMART_EVENT                    = 22,
     CONDITION_SOURCE_TYPE_NPC_VENDOR                     = 23,