public void UseASelfCareItem(float gain)
 {
     if (m_effort.SpendEffort(gain))
     {
         m_energy.Total += gain / 2;
     }
 }
 public void Buy()
 {
     if (m_effort.SpendEffort(m_cost))
     {
         m_activated = true;
         GetComponent <Button>().interactable = false;
     }
 }