ghostgame.rb

class Game

    GAME_NAME = "Ghost"
    MAX_SCORE = GAME_NAME.length
    ALPHABET = Set.new("a".."z")

    def initialize(player_list)
        @players = player_list
        @word_fragment = ""
        @dictionary = initialize_dictionary("dictionary.txt")
        @scoreboard = initialize_scoreboard
    end

    def initialize_dictionary(file_name)
        words = File.readlines(file_name).map(&:chomp)
        Set.new(words)
    end

    def initialize_scoreboard
        players = {}
        @players.each { |player| players[player] = 0 }
        players
    end

    attr_reader :players, :dictionary, :scoreboard
    attr_accessor :word_fragment

    # Helper Methods
    def active_players
        active = @scoreboard.select { |_, v| v <= MAX_SCORE }
        active.keys
    end

    def valid_char?(char)
        return false unless ALPHABET.include?(char)
        
        new_fragment = @word_fragment + char
        @dictionary.any? { |word| word.start_with?(new_fragment) }
    end

    def update_game_state(player, player_letter_choice)
        @word_fragment += player_letter_choice
        @scoreboard[player] += 1 if word_complete? 
    end

    def word_complete?
        @dictionary.any? { |word| word == @word_fragment }
    end

    # Display Methods
    def prompt_choice_redo
        puts [ "The character you chose was not valid.",
               "Valid choices continute to build towards a word.",
               "The current fragment is #{word_fragment}.",
               "Please choose again."
        ].join("\n")
    end

    def display_game_state(player)
        puts "#{player} added #{@word_fragment[-1]} to the fragment."
        puts "It is now #{@word_fragment}."
        puts "#{player} spelled a word!" if word_complete?
    end

end

players = ["Dave", "Josh"]
ghost = Game.new(players)

When I try to run this code in pry I get an "unexpected end" error.

I suspect that the single line if and unless statements are the cause. I've posted another version of this code in another gist with them removed. The code with them removed does not give me any error.