#pragma save_binary
object *labels;

void    create()
{
    labels = ({ });
}

object *query_labels()
{
    return labels;
}

int     add_weight( int n )
{
    return 0;
}
int     test_remove( object ob, int flag )
{
    return 1;
}

int     test_add( object ob, int flag )
{
    return ob->query_property( "label" ) && member_array( ob, labels ) != -1;
}

void    add_label( object ob )
{
    if( environment() )
    {
	filter_array( all_inventory( environment() ), "add_read_this", this_object() );
	environment()->add_command( "read", this_object() );
    }
    labels += ({ ob });
}

void    remove_label( object ob )
{
    labels -= ({ ob });
}

mixed * query_init_data()
{
    return({ "labels", labels, "add_label/P*/" });
}