library UnitManaEvent
{
    private trigger EventTrigger = null;
    private trigger SystemTrigger = null;

    callback onInit()
    {
        EventTrigger = CreateTrigger(); SystemTrigger = CreateTrigger();
        group g = CreateGroup();region r = null;unit u = null;
        GroupEnumUnitsInRect(g,bj_mapInitialPlayableArea,null);
        ForGroup(g, lambda void(){
            TriggerRegisterUnitStateEvent(EventTrigger, GetEnumUnit(), UNIT_STATE_MANA, LESS_THAN_OR_EQUAL, 0.00 )
        });
        GroupClear(g);
        DestroyGroup(g);
        g = null;
        RegionAddRect(r, bj_mapInitialPlayableArea);
        TriggerRegisterEnterRegion(SystemTrigger,r,null);
        r = null;
        TriggerAddAction(SystemTrigger, lambda void(){
            TriggerRegisterUnitStateEvent(EventTrigger, GetEnteringUnit(), UNIT_STATE_MANA, LESS_THAN_OR_EQUAL, 0.00 )
        });
        TriggerAddAction(EventTrigger, lambda void()
        {
            // нужные действия
        });
    }
}