private void GroupAction(group g,unit u){
        unit e = null
        GroupEnumUnitsInRange(g,GetUnitX(u),GetUnitY(u),Range,null)
        do{
            e = FirstOfGroup(g)
            exitwhen e == null
            if IsUnitEnemy(e,GetOwningPlayer(u)) && !IsUnitType(u,UT){
                unit d = CreateUnit(GetOwningPlayer(u),cId,GetUnitX(e),GetUnitY(e),0)
                UnitApplyTimedLife(d,bId,TimeLife)
                IssueTargetOrder(d,Order,e)
                d = null
                DestroyEffect(AddSpecialEffectTarget(eId2,e,attach))
                UnitDamageTarget(u,e,DMG,false,false,AT,DT,WT)
            }
            GroupRemoveUnit(g,e)
        }
        DestroyGroup(g)
    }


....
GroupAction(LoadGroupHandle(h,id,2),u) //Вызов функции
....

private void GroupAction(group g,unit u){
        unit e = null
        unit d = null
        GroupEnumUnitsInRange(g,GetUnitX(u),GetUnitY(u),Range,null)
        do{
            e = FirstOfGroup(g)
            exitwhen e == null
            if ( IsUnitEnemy(e,GetOwningPlayer(u)) && !IsUnitType(u,UT) ) {
                d = CreateUnit(GetOwningPlayer(u),cId,GetUnitX(e),GetUnitY(e),0)
                UnitApplyTimedLife(d,bId,TimeLife)
                IssueTargetOrder(d,Order,e)
                DestroyEffect(AddSpecialEffectTarget(eId2,e,attach))
                UnitDamageTarget(u,e,DMG,false,false,AT,DT,WT)
            }
            GroupRemoveUnit(g,e)
        }
        DestroyGroup(g)
        e = null
        d = null
}

UnitDamageTarget(u,e,DMG,false,false,AT,DT,WT)

#define SPELLNAME_DAMAGE_K = 100.0
#define SPELLNAME_ID = 'A000'

void тут функция, тоже лучше начинать с spellname {
    real damage = SPELLNAME_DAMAGE_K * GetUnitAbilityLevel(u,SPELLNAME_ID)
// ...
    UnitDamageTarget(u, e, damage, ...
// ...
}