#NEWLINE# def set_rollover_reels( self ) : #NEWLINE# #INDENT# "Calls each reel's `_set_rollover_reel` method and passes it a\n        pointer to the next higher up reel. This is how we know whether we're\n        able to advance the next higher up reel when a particular reel rolls\n        over during a step advance.\n        " #NEWLINE# for reel in range ( len ( self . reels ) ) : #NEWLINE# #INDENT# if ( self . reels [ reel ] and ( reel < ( len ( self . reels ) - 1 ) ) ) : #NEWLINE# #INDENT# self . reels [ reel ] . _set_rollover_reel ( self . reels [ ( reel + 1 ) ] )