#pragma save_binary
mapping map_prop;

void    create()
{
    map_prop = ([ ]);
}				/* create() */

int     add_property( string var, mixed val )
{
    if( !var )
	return 0;
    map_prop[ var ] = val;
    return 1;
}

int     remove_property( string var )
{
    map_prop = m_delete( map_prop, var );
    if( !map_prop )
	map_prop = ([ ]);
    return 1;
}

int     query_property( string str )
{
    return map_prop[ str ];
}

int     query_property_exists( string str )
{
    return( member_array( str, m_indices( map_prop ) ) ) != -1;
}

mapping query_properties()
{
    return map_prop;
}
int     add_properties( mapping map )
{
    map_prop += map;
}

mixed * query_init_data()
{
    return({ "properties", map_prop, "add_properties/p/" });
}