function trigger01_Func00 takes nothing returns nothing
    local unit u1 = GetEventDamageSource() // атакующий
    local unit u2 = GetTriggerUnit()       // атакованный
    
    // твои действия
    
    call DestroyTrigger(GetTriggeringTrigger())
    set u1 = null
    set u2 = null
endfunction

function trigger01_Actions takes nothing returns nothing
    local trigger trg = CreateTrigger()
    
    call TriggerRegisterUnitEvent( trg, GetTriggerUnit(), EVENT_UNIT_DAMAGED )
    call TriggerAddAction( trg, function trigger01_Func00 )
    
    set trg = null
endfunction

function InitTrig_trigger01 takes nothing returns nothing
   set gg_trg_trigger01 = CreateTrigger()
   call TriggerRegisterAnyUnitEventBJ( gg_trg_trigger01, EVENT_PLAYER_UNIT_ATTACKED )
   call TriggerAddAction( gg_trg_trigger01, function trigger01_Actions )
endfunction