fix(Core/Maps): Move corpse expiration updates to map (#22780)

src/server/game/Maps/Map.cpp

@@ -73,6 +73,8 @@ Map::Map(uint32 id, uint32 InstanceId, uint8 SpawnMode, Map* _parent) :
 
     //lets initialize visibility distance for map
     Map::InitVisibilityDistance();
+
+    _corpseUpdateTimer.SetInterval(20 * MINUTE * IN_MILLISECONDS);
 }
 
 // Hook called after map is created AND after added to map list
@@ -494,6 +496,8 @@ void Map::Update(const uint32 t_diff, const uint32 s_diff, bool  /*thread*/)
 
     HandleDelayedVisibility();
 
+    UpdateExpiredCorpses(t_diff);
+
     sScriptMgr->OnMapUpdate(this, t_diff);
 
     METRIC_VALUE("map_creatures", uint64(GetObjectsStore().Size<Creature>()),
@@ -1580,6 +1584,17 @@ void Map::SendInitSelf(Player* player)
     player->SendDirectMessage(&packet);
 }
 
+void Map::UpdateExpiredCorpses(uint32 const diff)
+{
+    _corpseUpdateTimer.Update(diff);
+    if (!_corpseUpdateTimer.Passed())
+        return;
+
+    RemoveOldCorpses();
+
+    _corpseUpdateTimer.Reset();
+}
+
 void Map::SendInitTransports(Player* player)
 {
     if (_transports.empty())