function MagicShield_Conditions takes nothing returns boolean
    return GetSpellAbilityId() == 'A001'
endfunction

function MagicShield_OnDamage takes nothing returns nothing
    local unit e=GetEventDamageSource()
    local unit u=GetTriggerUnit()
    local real dmg=GetEventDamage()
    
    if dmg>0. then
    call SetUnitState(u,UNIT_STATE_LIFE,GetUnitState(u,UNIT_STATE_LIFE)+dmg)
    call DestroyEffect(AddSpecialEffectTarget("Abilities\\Spells\\Undead\\OrbOfDeath\\OrbOfDeathMissile.mdl",u,"chest"))
    endif
    
    set e=null
    set u=null
endfunction

function MagicShield_Actions takes nothing returns nothing
    local unit u=GetSpellTargetUnit()
    local trigger t=CreateTrigger()
    
    set udg_ss_MagicShiled_DmgTrigger=t
    
    //call UnitAddAbility(u,'A002')
    
    call TriggerRegisterUnitEvent(t,u,EVENT_UNIT_DAMAGED)
    call TriggerAddAction(t,function MagicShield_OnDamage)
    
    set t=null
    set u=null
endfunction

//===========================================================================
function InitTrig_MagicShield_Trigger takes nothing returns nothing
    local trigger t=CreateTrigger()
    local integer i=0
    local filterfunc f=Filter(function Link)
    
    loop
    exitwhen i==16
    call TriggerRegisterPlayerUnitEvent(t,Player(i),EVENT_PLAYER_UNIT_SPELL_EFFECT,f)
    set i=i+1
    endloop
    
    call TriggerAddCondition(t,Condition(function MagicShield_Conditions))
    call TriggerAddAction(t,function MagicShield_Actions)
    
    set t=null
    call DestroyFilter(f)
    set f=null
endfunction