apr_crash_course.rb

## Hangman

## Data
# * answer
# * guesses
# * maximum number of wrong guesses
# * word_list / dictionary

WORD_LIST = [
  "buffalo", "laptop", "programming", "gambino",
  "cookies", "damn", "bourbon", "sandwiches",
  "internet", "puppies", "ruby", "trumpet",
  "onomatopoeia", "disestablishmentarianism"
]

## Actions
# * greeting
# * select a random word
# * until the game ends
  # * show the player the game
  # * prompt for a guess
  # * lose a turn if they guess wrong
# * tell the player what happened

def greeting
  puts "Welcome to Hangman!"
  puts "I'm too lazy to explain the rules. Just guess some letters."
end

def win?(answer, guesses)
  # winner = true
  # answer.chars.each do |letter|
  #   winner = false unless guesses.include?(letter)
  # end
  # winner
  answer.chars.all? do |letter|
    guesses.include?(letter)
  end
end

def lose?(turns_left)
  turns_left.zero? ## turns_left == 0
end

def game_over?(answer, guesses, turns_left)
  ### all the letters in the answer have been guessed
  ### player runs out of turns
  win?(answer, guesses) || lose?(turns_left)
end

def show_game(word, turns, guesses)
  puts "The word is: #{"-" * word.length}"
  puts "You have #{turns} turns left."
  puts "You have already guessed: #{guesses.join(", ")}."
end

def take_turn
  puts "Please guess a letter: "
  gets.chomp
end

def hangman
  answer = WORD_LIST.sample
  turns_left = 7
  guesses = []

  greeting
  until game_over?(answer, guesses, turns_left)
    show_game(answer, turns_left, guesses)
    guess = take_turn
    guesses << guess # guesses.push(guess)
    turns_left -= 1 unless answer.include?(guess)
  end
  postmortem(answer, guesses)
end

def postmortem(answer, guesses)
  if win?(answer, guesses)
    puts "Great job!"
  else
    puts "Better luck next time. The word was: #{answer}"
  end
end

hangman