@Override
	public boolean invoke(MOB mob, Vector commands, Physical givenTarget, boolean auto, int asLevel)
	{

		final String whatToOpen=CMParms.combine(commands,0);
		final int dirCode=Directions.getGoodDirectionCode(whatToOpen);
		if(dirCode<0)
		{
			mob.tell(_("Cast which direction?!"));
			return false;
		}

		final Exit exit=mob.location().getExitInDir(dirCode);
		final Room room=mob.location().getRoomInDir(dirCode);

		if((exit==null)||(room==null)||(!CMLib.flags().canBeSeenBy(exit,mob)))
		{
			mob.tell(_("That way is already closed."));
			return false;
		}
		if(!super.invoke(mob,commands,givenTarget,auto,asLevel))
			return false;


		final boolean success=proficiencyCheck(mob,0,auto);

		if(!success)
			beneficialVisualFizzle(mob,null,_("<S-NAME> whisper(s) @x1, but nothing happens.",Directions.getDirectionName(dirCode)));
		else
		{
			final CMMsg msg=CMClass.getMsg(mob,exit,this,verbalCastCode(mob,exit,auto),auto?"":_("^S<S-NAME> whisper(s) @x1.^?",Directions.getDirectionName(dirCode)));
			if(mob.location().okMessage(mob,msg))
			{
				mob.location().send(mob,msg);
				beneficialAffect(mob,exit,asLevel,0);
			}
		}

		return success;
	}