void main()

{

object oPC = GetFirstPC();

effect eEffect;

effect eVFX = EffectVisualEffect(VFX_COM_HIT_FROST);

while (GetIsObjectValid(oPC))

{

 if (OBJECT_SELF==GetArea(oPC))

  {

    eEffect = EffectDamage(d8(3),DAMAGE_TYPE_COLD);

    ApplyEffectToObject(DURATION_TYPE_INSTANT,eEffect,oPC);

    ApplyEffectAtLocation(DURATION_TYPE_INSTANT,eVFX,GetLocation(oPC));

  }

  oPC = GetNextPC();

}

}