Class: Game

Inherits:
Object
  • Object
show all
Defined in:
lib/game.rb

Constant Summary collapse

WINNING_COMBINATIONS = 
{ "rock" => "scissors", "paper" => "rock", "scissors" => "paper" }

Instance Method Summary collapse

Constructor Details

#initialize(num_of_players) ⇒ Game

Returns a new instance of Game.



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# File 'lib/game.rb', line 8

def initialize(num_of_players)
  @num_of_players = num_of_players
  if num_of_players == 1
    @player1 = Human.new
    @player2 = Computer.new
  elsif num_of_players == 2
    @player1 = Human.new
    @player2 = Human.new
    @outcome = nil
  end
end

Instance Method Details

#check_outcome(opponent_choice) ⇒ Object 



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# File 'lib/game.rb', line 33

def check_outcome(opponent_choice)
  if @player1.choice == opponent_choice
    @outcome = "The game is a tie."
  elsif WINNING_COMBINATIONS[@player1.choice] == opponent_choice
    @outcome = "Player 1 is the winner."
  else
    @outcome = "Player 2 is the winner."
  end
end

#game_loop ⇒ Object 



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# File 'lib/game.rb', line 60

def game_loop
  welcome_message
  print_instructions
  until @outcome
    @player1.make_choice
    validate_player_choice(@player1)
    @player2.make_choice
    validate_player_choice(@player2)
    check_outcome(@player2.choice)
    print_outcome
  end
end

#get_player_choice(player) ⇒ Object 



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# File 'lib/game.rb', line 47

def get_player_choice(player)
  print "Please enter your choice now: "
  player.make_choice
end

#play ⇒ Object 



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# File 'lib/game.rb', line 28

def play
  puts "Welcome to Rock Paper Scissors\n You must choose: "
  @player1.make_choice
end

#print_instructions ⇒ Object 



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# File 'lib/game.rb', line 24

def print_instructions
  puts "To make a move, type the hand sign you would like to use\n e.g. \"rock\", \"paper\", \"scissors\""
end

#print_outcome ⇒ Object 



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# File 'lib/game.rb', line 43

def print_outcome
  puts @outcome
end

#validate_player_choice(player) ⇒ Object 



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# File 'lib/game.rb', line 52

def validate_player_choice(player)
  unless ["rock", "paper", "scissors"].include?(player.choice)
    puts "Please enter either \"rock\", \"paper\", or \"scissors\""
    get_player_choice(player)
  end
end

#welcome_message ⇒ Object 



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# File 'lib/game.rb', line 20

def welcome_message
  puts "Rock Paper Scissors."
end