def __increment_block(self):
self.__current_block += <NUM_LIT:1><EOL>if self.__current_block >= len(self.__level_blocks):<EOL><INDENT>self.__current_block = <NUM_LIT:0><EOL>self.__current_level += <NUM_LIT:1><EOL>if self.__current_level < self.__directory.get_height():<EOL><INDENT>self.__level_blocks = self.__directory.get_level(self.__current_level)<EOL><DEDENT><DEDENT>
!
        @brief Increment BANG block safely by updating block index, level and level block.