feat(Core/World): Implement DoForAllPlayers() helper for all online p… (#18060)

* feat(Core/World): Implement DoForAllPlayers() helper for all online players

* Update src/server/game/World/World.cpp

Co-authored-by: Winfidonarleyan <dowlandtop@yandex.com>

* Update src/server/game/World/World.cpp

Co-authored-by: Winfidonarleyan <dowlandtop@yandex.com>

* rename

* Update WorldMock.h

* Update WorldMock.h

---------

Co-authored-by: Winfidonarleyan <dowlandtop@yandex.com>

src/server/game/World/IWorld.h

@@ -608,6 +608,7 @@ public:
     [[nodiscard]] virtual std::string const& GetRealmName() const = 0;
     virtual void SetRealmName(std::string name) = 0;
     virtual void RemoveOldCorpses() = 0;
+    virtual void DoForAllOnlinePlayers(std::function<void(Player*)> exec) = 0;
 };
 
 #endif //AZEROTHCORE_IWORLD_H

src/server/game/World/World.cpp

@@ -3253,6 +3253,23 @@ void World::RemoveOldCorpses()
     _timers[WUPDATE_CORPSES].SetCurrent(_timers[WUPDATE_CORPSES].GetInterval());
 }
 
+void World::DoForAllOnlinePlayers(std::function<void(Player*)> exec)
+{
+    std::shared_lock lock(*HashMapHolder<Player>::GetLock());
+    for (auto const& it : ObjectAccessor::GetPlayers())
+    {
+        if (Player* player = it.second)
+        {
+            if (!player->IsInWorld())
+            {
+                continue;
+            }
+
+            exec(player);
+        }
+    }
+}
+
 bool World::IsPvPRealm() const
 {
     return getIntConfig(CONFIG_GAME_TYPE) == REALM_TYPE_PVP || getIntConfig(CONFIG_GAME_TYPE) == REALM_TYPE_RPPVP || getIntConfig(CONFIG_GAME_TYPE) == REALM_TYPE_FFA_PVP;

src/server/game/World/World.h

@@ -349,6 +349,8 @@ public:
 
     void RemoveOldCorpses() override;
 
+    void DoForAllOnlinePlayers(std::function<void(Player*)> exec) override;
+
 protected:
     void _UpdateGameTime();
     // callback for UpdateRealmCharacters