public override void OnExit(string nextState = "")
{
//for (int i = 0; i < m_States.Count; i++)
//{
// m_States.Values.ElementAt(i).OnExit();
//}
m_StartLevelCanvas.enabled = false;
m_Canvas.enabled = false;
m_ConstructUIController.Disable();
m_UIRangeIndicator.Invisible();
m_TowerManager.ClearAll();
m_MonsterManager.ClearAll();
}