///<summary>Calls _Init method in all managers (used to assign all scene objects on restart)</summary>
void InitManagers()
{
TimeManager._Init();
FlowManager._Init();
CloudManager._Init();
GoldManager._Init();
GridManager._Init();
LivesManager._Init();
MonsterManager._Init();
TowerManager._Init();
UIManager._Init();
WaveManager._Init();
}