library UnitDamagedAdv initializer InitRect
{
    private region          mRegion
    
    private trigger array   mTriggers
    private integer         mCount      = 0
    
    //////////////////////////////////////////////////////////
    
    private boolean Adder()
    {
        unit    u = GetTriggerUnit()
        integer i = 0
        
        // Here we are able to reject some units
        
        loop
            exitwhen i>=mCount
            TriggerRegisterUnitEvent(mTriggers[i],u,EVENT_UNIT_DAMAGED)
            i++
        endloop
        
        u=null
        return false
    }
    
    nothing AnyUnitDamagedEventAdv(trigger trg)
    {
        group CurrentUnits = CreateGroup()
        unit Picked
        GroupEnumUnitsInRect(CurrentUnits,bj_mapInitialPlayableArea,null)
        loop
        {
            Picked = FirstOfGroup(CurrentUnits)
            exitwhen Picked == null
            TriggerRegisterUnitEvent(trg,Picked,EVENT_UNIT_DAMAGED)
            GroupRemoveUnit(CurrentUnits,Picked)
        }
        //TriggerRegisterEnterRegion(trg,Region,null)
        //TriggerAddAction(trg,function Adder)
        
        // Registration in system
        mTriggers[mCount]=trg
        mCount++
        
        DestroyGroup(CurrentUnits)
        CurrentUnits=null
        Picked=null
    }
    
    private nothing InitRect()
    {
        // Initializating mRegion
        mRegion=CreateRegion()
        RegionAddRect(mRegion, bj_mapInitialPlayableArea)
        
        // Initializating registrator
        trigger t = CreateTrigger()
        
        TriggerRegisterEnterRegion(t,mRegion,null)
        TriggerAddCondition(t,Condition(function Adder))
        
        t=null
    }
}