RPS Challenge

Gemfile

@@ -3,6 +3,7 @@ source 'https://rubygems.org'
 ruby '3.0.2'
 
 gem 'sinatra'
+gem 'sinatra-contrib'
 
 group :test do
   gem 'capybara'

Gemfile.lock

@@ -17,6 +17,7 @@ GEM
     docile (1.4.0)
     mini_mime (1.1.1)
     mini_portile2 (2.6.1)
+    multi_json (1.15.0)
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
     nokogiri (1.12.3)
@@ -76,6 +77,12 @@ GEM
       rack (~> 2.2)
       rack-protection (= 2.1.0)
       tilt (~> 2.0)
+    sinatra-contrib (2.1.0)
+      multi_json
+      mustermann (~> 1.0)
+      rack-protection (= 2.1.0)
+      sinatra (= 2.1.0)
+      tilt (~> 2.0)
     terminal-table (3.0.1)
       unicode-display_width (>= 1.1.1, < 3)
     tilt (2.0.10)
@@ -93,6 +100,7 @@ DEPENDENCIES
   simplecov
   simplecov-console
   sinatra
+  sinatra-contrib
 
 RUBY VERSION
    ruby 3.0.2p107

Views/index.erb

@@ -0,0 +1,6 @@
+<h1>ROCK! PAPER! SCISSORS!</h1>
+<form action='/names' method="post">
+  <input type='text' name="player_1_name" placeholder="Enter your name">
+  <input type='text' name="player_2_name" placeholder="Enter your name">
+  <input type="submit" value="Submit">
+</form>

Views/play.erb

@@ -0,0 +1,8 @@
+<h1><%= @game.player_1.name %> vs. <%= @game.player_2.name %></h1>
+
+<h3>Rock, paper or scissors? Make your choice:</h3>
+<form action='/result' method="post">
+  <input type='text' name='player_1_choice' placeholder='Player 1 choice'>
+  <input type='text' name='player_2_choice' placeholder='Player 2 choice'>
+  <input type="submit" value="Play">
+</form>

Views/result.erb

@@ -0,0 +1,18 @@
+<h3><%= @game.player_1.name %> chose <%= @game.get_player_1_choice %></h3>
+<h3><%= @game.player_2.name %> chose <%= @game.get_player_2_choice %></h3>
+
+<% if @game.get_player_1_choice == @game.get_player_2_choice %>
+  <h3>It's a draw!</h3>
+<% elsif @game.get_player_1_choice == 'rock' && @game.get_player_2_choice == 'scissors' %>
+  <h3>Player 1 wins</h3>
+<% elsif @game.get_player_1_choice == 'scissors' && @game.get_player_2_choice == 'paper' %>
+  <h3>Player 1 wins</h3>
+<% elsif @game.get_player_1_choice == 'paper' && @game.get_player_2_choice == 'rock' %>
+  <h3>Player 1 wins</h3>
+<% else %>
+<h3><%= @game.player_2.name %> wins!</h3>
+<% end %>
+
+<form action='/play'>
+  <input type='submit' value='Play again'>
+</form>

app.rb

@@ -0,0 +1,40 @@
+require 'sinatra/base'
+require 'sinatra/reloader'
+require './lib/game'
+require './lib/player'
+
+class RPS < Sinatra::Base
+  enable :sessions
+  configure :development do
+    register Sinatra::Reloader
+  end
+
+  get '/' do
+    erb :index
+  end
+
+  post '/names' do
+    player_1 = Player.new(params[:player_1_name])
+    player_2 = Player.new(params[:player_2_name])
+    $game = Game.new(player_1, player_2)
+    redirect '/play'
+  end
+
+  get '/play' do
+    @game = $game
+    erb :play
+  end
+
+  post '/result' do
+    @game = $game
+    player_1_choice = params[:player_1_choice]
+    player_2_choice = params[:player_2_choice]
+    @game.player_1.make_choice(player_1_choice)
+    @game.player_2.make_choice(player_2_choice)
+
+    erb :result
+  end
+
+
+  run! if app_file == $0
+end

config.ru

@@ -0,0 +1,2 @@
+require_relative './app'
+run RPS 

lib/game.rb

@@ -0,0 +1,29 @@
+class Game
+  attr_reader :p1_choice, :player_1, :current_player, :p2_choice
+
+  def initialize(player_1, player_2)
+    @players = [player_1, player_2]
+    @current_player = player_1
+  end
+
+  def player_1
+    @players.first
+  end
+
+  def player_2
+    @players.last
+  end
+
+  def ai_choice
+    # 1 = Rock, 2 = Paper, 3 = Scissors
+    @comp_choice = ['rock', 'paper', 'scissors'].sample
+  end
+
+  def get_player_1_choice
+    player_1.choice
+  end
+
+  def get_player_2_choice
+    player_2.choice
+  end
+end

lib/player.rb

@@ -0,0 +1,12 @@
+class Player
+  attr_reader :name, :choice
+
+  def initialize(name)
+    @name = name
+    @choice = ""
+  end
+
+  def make_choice(choice)
+    @choice = choice
+  end
+end

plan.md

@@ -0,0 +1,81 @@
+{{RPS Challenge}} Class Design Recipe
+1. Describe the Problem
+As a marketeer
+So that I can see my name in lights
+I would like to register my name before playing an online game
+
+As a marketeer
+So that I can enjoy myself away from the daily grind
+I would like to be able to play rock/paper/scissors
+
+2. Design the Class Interface
+Enter name before the game
+
+Get shown a choice of Rock, Paper or Scissors
+
+User can only choose 1 option
+
+The game will choose make 1 other choice
+
+Winner gets declared
+  Rock beats Scissors
+  Scissors beats Paper
+  Paper beats Rock
+
+MODELS
+- Player
+  - attr_reader :name
+  - def make_choice
+- Game (current_turn, )
+
+VIEWS
+- index
+- play
+  - Shows player 3 choices, buttons. 
+- result
+  - Shows the result of the game
+
+CONTROLLER
+- app.rb
+  '/'
+  '/play'
+  '/result'
+
+# EXAMPLE
+
+class Reminder
+  def initialize(name) # name is a string
+    # ...
+  end
+
+  def remind_me_to(task) # task is a string
+    # No return value
+  end
+
+  def remind()
+    # Throws an exception if no task is set
+    # Otherwise, returns a string reminding the user to do the task
+  end
+end
+3. Create Examples as Tests
+Make a list of examples of how the class will behave in different situations.
+
+# EXAMPLE
+
+# 1
+reminder = Reminder("Kay")
+reminder.remind_me_to("Walk the dog")
+reminder.remind() # => "Walk the dog, Kay!"
+
+# 2
+reminder = Reminder("Kay")
+reminder.remind() # fails with "No task set."
+
+# 3
+reminder = Reminder("Kay")
+reminder.remind_me_to("")
+reminder.remind() # => ", Kay!"
+Encode each example as a test. You can add to the above list as you go.
+
+4. Implement the Behaviour
+After each test you write, follow the test-driving process of red, green, refactor to implement the behaviour.

spec/features/enter_names_spec.rb

@@ -0,0 +1,7 @@
+feature "Enter player name" do
+  scenario "submitting a name" do
+    sign_in_and_play
+    #save_and_open_page
+    expect(page).to have_content "Joe vs. Dan"
+  end
+end

spec/features/play_again_spec.rb

@@ -0,0 +1,10 @@
+feature 'play again' do
+  scenario 'press play again to restart game' do
+    sign_in_and_play
+    player_1_rock_p2_scissors
+    click_button 'Play again'
+    expect(page).to have_content "Joe vs. Dan"
+    expect(page).not_to have_content "Dan wins!"
+    expect(page).not_to have_content "Joe wins!"
+  end
+end

spec/features/result_spec.rb

@@ -0,0 +1,28 @@
+feature 'Result of choice' do
+  scenario 'Player 1 chooses Rock, player 2 scissors' do
+    sign_in_and_play
+    player_1_rock_p2_scissors
+    expect(page).to have_content "Joe chose rock"
+    expect(page).to have_content "Dan chose scissors"
+    expect(page).not_to have_content "Joe chose paper"
+    expect(page).not_to have_content "Joe chose scissors"
+  end
+
+  scenario 'Player 1 chooses paper, player 2 rock' do
+    sign_in_and_play
+    player_2_rock_p1_paper
+    expect(page).to have_content "Joe chose paper"
+    expect(page).to have_content "Dan chose rock"
+    expect(page).not_to have_content "Joe chose rock"
+    expect(page).not_to have_content "Dan chose scissors"
+  end
+
+  scenario 'Player 1 chooses scissors, player 2 paper' do
+    sign_in_and_play
+    player_2_paper_p1_scissors
+    expect(page).to have_content "Joe chose scissors"
+    expect(page).to have_content "Dan chose paper"
+    expect(page).not_to have_content "Joe chose paper"
+    expect(page).not_to have_content "Joe chose rock"
+  end
+end

spec/features/web_helpers.rb

@@ -0,0 +1,42 @@
+def sign_in_and_play
+  visit('/')
+  fill_in :player_1_name, with: 'Joe'
+  fill_in :player_2_name, with: 'Dan'
+  click_button 'Submit'
+end
+
+def player_1_rock_p2_scissors
+  fill_in :player_1_choice, with: 'rock'
+  fill_in :player_2_choice, with: 'scissors'
+  click_button 'Play'
+end
+
+def player_1_paper_p2_scissors
+  fill_in :player_1_choice, with: 'paper'
+  fill_in :player_2_choice, with: 'scissors'
+  click_button 'Play'
+end
+
+def player_1_scissors_p2_scissors
+  fill_in :player_1_choice, with: 'scissors'
+  fill_in :player_2_choice, with: 'scissors'
+  click_button 'Play'
+end
+
+def player_2_rock_p1_paper
+  fill_in :player_1_choice, with: 'paper'
+  fill_in :player_2_choice, with: 'rock'
+  click_button 'Play'
+end
+
+def player_2_paper_p1_scissors
+  fill_in :player_1_choice, with: 'scissors'
+  fill_in :player_2_choice, with: 'paper'
+  click_button 'Play'
+end
+
+def player_2_scissors_p1_rock
+  fill_in :player_1_choice, with: 'rock'
+  fill_in :player_2_choice, with: 'scissors'
+  click_button 'Play'
+end

spec/game_spec.rb

@@ -0,0 +1,22 @@
+require 'game'
+
+describe Game do
+  subject(:game) { described_class.new(player_1, player_2) }
+  let(:player_1) { double :player }
+  let(:player_2) { double :player }
+
+
+  describe '#get_player_choice' do
+    it "it returns player 1 choice" do
+      allow(player_1).to receive(:make_choice).with('rock').and_return 'rock'
+      expect(game).to receive(:get_player_1_choice).and_return 'rock'
+      game.get_player_1_choice
+    end
+
+    it "it returns player 2 choice" do
+      allow(player_2).to receive(:make_choice).with('paper').and_return 'paper'
+      expect(game).to receive(:get_player_2_choice).and_return 'paper'
+      game.get_player_2_choice
+    end
+  end
+end

spec/player_spec.rb

@@ -0,0 +1,13 @@
+require 'player'
+
+describe Player do
+  subject(:joe) { Player.new("Joe") }
+  subject(:dan) { Player.new("Dan") }
+
+  describe '#name' do
+    it 'returns the name' do
+      expect(joe.name).to eq "Joe"
+      expect(dan.name).to eq "Dan"
+    end
+  end
+end