internal MapCommands( World _world, Commands commands ) {
world = _world;
commands.AddCommand( "load", Load, true );
commands.AddCommand( "save", Save, true );
commands.AddCommand( "lock", Lock, true );
commands.AddCommand( "unlock", Unlock, true );
commands.AddCommand( "gen", Generate, true );
commands.AddCommand( "genh", GenerateHollow, true );
commands.AddCommand( "zone", DoZone, false );
}