finish assignment

.rspec

@@ -0,0 +1,3 @@
+--color
+--require spec_helper
+--format doc

Gemfile

@@ -0,0 +1,4 @@
+source "https://rubygems.org"
+
+gem 'rspec'
+gem 'guard-rspec', require: false

Gemfile.lock

@@ -0,0 +1,65 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    coderay (1.1.1)
+    diff-lcs (1.2.5)
+    ffi (1.9.14)
+    formatador (0.2.5)
+    guard (2.14.0)
+      formatador (>= 0.2.4)
+      listen (>= 2.7, < 4.0)
+      lumberjack (~> 1.0)
+      nenv (~> 0.1)
+      notiffany (~> 0.0)
+      pry (>= 0.9.12)
+      shellany (~> 0.0)
+      thor (>= 0.18.1)
+    guard-compat (1.2.1)
+    guard-rspec (4.7.3)
+      guard (~> 2.1)
+      guard-compat (~> 1.1)
+      rspec (>= 2.99.0, < 4.0)
+    listen (3.1.5)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+      ruby_dep (~> 1.2)
+    lumberjack (1.0.10)
+    method_source (0.8.2)
+    nenv (0.3.0)
+    notiffany (0.1.1)
+      nenv (~> 0.1)
+      shellany (~> 0.0)
+    pry (0.10.4)
+      coderay (~> 1.1.0)
+      method_source (~> 0.8.1)
+      slop (~> 3.4)
+    rb-fsevent (0.9.8)
+    rb-inotify (0.9.7)
+      ffi (>= 0.5.0)
+    rspec (3.5.0)
+      rspec-core (~> 3.5.0)
+      rspec-expectations (~> 3.5.0)
+      rspec-mocks (~> 3.5.0)
+    rspec-core (3.5.4)
+      rspec-support (~> 3.5.0)
+    rspec-expectations (3.5.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.5.0)
+    rspec-mocks (3.5.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.5.0)
+    rspec-support (3.5.0)
+    ruby_dep (1.5.0)
+    shellany (0.0.1)
+    slop (3.6.0)
+    thor (0.19.4)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  guard-rspec
+  rspec
+
+BUNDLED WITH
+   1.13.6

Guardfile

@@ -0,0 +1,71 @@
+# A sample Guardfile
+# More info at https://github.com/guard/guard#readme
+
+## Uncomment and set this to only include directories you want to watch
+# directories %w(app lib config test spec features) \
+#  .select{|d| Dir.exists?(d) ? d : UI.warning("Directory #{d} does not exist")}
+
+## Note: if you are using the `directories` clause above and you are not
+## watching the project directory ('.'), then you will want to move
+## the Guardfile to a watched dir and symlink it back, e.g.
+#
+#  $ mkdir config
+#  $ mv Guardfile config/
+#  $ ln -s config/Guardfile .
+#
+# and, you'll have to watch "config/Guardfile" instead of "Guardfile"
+
+# Note: The cmd option is now required due to the increasing number of ways
+#       rspec may be run, below are examples of the most common uses.
+#  * bundler: 'bundle exec rspec'
+#  * bundler binstubs: 'bin/rspec'
+#  * spring: 'bin/rspec' (This will use spring if running and you have
+#                          installed the spring binstubs per the docs)
+#  * zeus: 'zeus rspec' (requires the server to be started separately)
+#  * 'just' rspec: 'rspec'
+
+guard :rspec, cmd: "bundle exec rspec" do
+  require "guard/rspec/dsl"
+  dsl = Guard::RSpec::Dsl.new(self)
+
+  # Feel free to open issues for suggestions and improvements
+
+  # RSpec files
+  rspec = dsl.rspec
+  watch(rspec.spec_helper) { rspec.spec_dir }
+  watch(rspec.spec_support) { rspec.spec_dir }
+  watch(rspec.spec_files)
+  watch(//) { "spec" }
+
+  # Ruby files
+  ruby = dsl.ruby
+  dsl.watch_spec_files_for(ruby.lib_files)
+
+  # Rails files
+  rails = dsl.rails(view_extensions: %w(erb haml slim))
+  dsl.watch_spec_files_for(rails.app_files)
+  dsl.watch_spec_files_for(rails.views)
+
+  watch(rails.controllers) do |m|
+    [
+      rspec.spec.call("routing/#{m[1]}_routing"),
+      rspec.spec.call("controllers/#{m[1]}_controller"),
+      rspec.spec.call("acceptance/#{m[1]}")
+    ]
+  end
+
+  # Rails config changes
+  watch(rails.spec_helper)     { rspec.spec_dir }
+  watch(rails.routes)          { "#{rspec.spec_dir}/routing" }
+  watch(rails.app_controller)  { "#{rspec.spec_dir}/controllers" }
+
+  # Capybara features specs
+  watch(rails.view_dirs)     { |m| rspec.spec.call("features/#{m[1]}") }
+  watch(rails.layouts)       { |m| rspec.spec.call("features/#{m[1]}") }
+
+  # Turnip features and steps
+  watch(%r{^spec/acceptance/(.+)\.feature$})
+  watch(%r{^spec/acceptance/steps/(.+)_steps\.rb$}) do |m|
+    Dir[File.join("**/#{m[1]}.feature")][0] || "spec/acceptance"
+  end
+end

README.md

@@ -1,3 +1,5 @@
 ## project_game_center
 
-[An Object-Oriented Ruby project from the Viking Code School](http://www.vikingcodeschool.com)
+[An Object-Oriented Ruby project from the Viking Code School](http://www.vikingcodeschool.com)
+
+Tingting Wang

lib/ai.rb

@@ -0,0 +1,39 @@
+require_relative 'board'
+require_relative 'player'
+require 'pry'
+
+class AI < Player
+
+# all columns that are not yet full
+  def available_moves
+    possible_columns = []
+    (0..6).each do |i|
+      possible_columns << i if @board.columns[i].include?('-')
+    end
+    possible_columns
+  end
+
+# look for 3 consecutive pieces
+  def better_moves
+    candidates = []
+    available_moves.each do |i|
+      row_index = @board.columns[i].index('-')
+      candidates << i if @board.columns[i].join.include?("OOO" || "XXX") || @board.rows(row_index).join.include?("OOO" || "XXX")
+    end
+    candidates
+  end
+
+  def choose_column
+    first_choice = better_moves
+    player_choice = 0
+    if first_choice.empty?
+      player_choice = available_moves.sample
+    else
+      player_choice = first_choice.sample
+    end
+    puts
+    puts "Player #{@number} chose column #{player_choice}!"
+    @board.process_choice(player_choice, @piece)
+  end
+
+end

lib/board.rb

@@ -0,0 +1,147 @@
+require 'pry'
+class Board
+
+  attr_reader :columns
+
+  def initialize(board_input=false)
+    @columns = ( board_input || Array.new(7) { Array.new(6, '-') })
+  end
+
+  def rows(index)
+    rows = @columns.transpose
+    rows[index]
+  end
+
+  def render
+    puts
+    puts "  1  2  3  4  5  6  7"
+    5.downto(0) do |row_index|
+      print "|"
+      rows(row_index).each do |item|
+          print " #{item} "
+      end
+      print "|"
+      puts
+    end
+  end
+
+  def process_choice(choice, piece)
+    column_index = choice
+    row_index = @columns[column_index].index('-')
+    @columns[column_index][row_index] = piece
+    [column_index, row_index, piece]
+  end
+
+  def draw?
+    return false if @columns.flatten.include?("-")
+    true
+  end
+
+  def win?(move)
+    column_index = move[0]
+    row_index = move[1]
+    piece = move[2]
+    return true if horizontal_win?(row_index, piece) || 
+      vertical_win?(column_index, piece) || 
+      upper_diagonal_win?(column_index, row_index, piece)|| 
+      downward_diagonal_win?(column_index, row_index, piece)
+    false
+  end
+
+  protected
+
+  def test_object(relevant_array, piece)
+    test_object = relevant_array.join
+    return true if test_object.include?(piece*4)
+    false
+  end
+
+  def vertical_win?(column_index, piece)
+    test_object(@columns[column_index], piece)
+  end
+
+  def horizontal_win?(row_index, piece)
+    test_object(rows(row_index), piece)
+  end
+
+  def upper_diagonal_win?(column_index, row_index, piece)
+    test_object(upward_diagonal(column_index, row_index), piece)
+  end
+
+  def downward_diagonal_win?(column_index, row_index, piece)
+    test_object(downward_diagonal(column_index, row_index), piece)
+  end
+
+  def upward_diagonal(column_index, row_index)
+    a = upward_diagonal_lower_left(column_index, row_index) 
+    b = upward_diagonal_upper_right(column_index, row_index)
+    a + b
+  end
+
+  def upward_diagonal_upper_right(column_index, row_index)
+    upper_right = [@columns[column_index][row_index]]
+    loop do
+      column_index += 1
+      row_index += 1
+      if (0..6).include?(column_index) && (0..5).include?(row_index)
+        upper_right << @columns[column_index][row_index]
+      else
+        break
+      end
+    end
+    upper_right
+  end
+
+  def upward_diagonal_lower_left(column_index, row_index)
+    lower_left = []
+    loop do
+      column_index -= 1
+      row_index -= 1
+      if (0..6).include?(column_index) && (0..5).include?(row_index)
+        lower_left << @columns[column_index][row_index]
+      else
+        break
+      end
+    end
+    lower_left.reverse
+  end
+
+  def downward_diagonal(column_index, row_index)
+    a = downward_diagonal_upper_left(column_index, row_index)
+    b = downward_diagonal_lower_right(column_index, row_index)
+    a + b
+  end
+
+  def downward_diagonal_upper_left(column_index, row_index)
+    upper_left = []
+    loop do
+      column_index -= 1
+      row_index += 1
+      if (0..6).include?(column_index) && (0..5).include?(row_index)
+        upper_left << @columns[column_index][row_index]
+      else
+        break
+      end
+    end
+    upper_left.reverse
+  end
+
+  def downward_diagonal_lower_right(column_index, row_index)
+    lower_right = [@columns[column_index][row_index]]
+    loop do
+      column_index += 1
+      row_index -= 1
+      if (0..6).include?(column_index) && (0..5).include?(row_index)
+        lower_right << @columns[column_index][row_index]
+      else
+        break
+      end
+    end
+    lower_right
+  end
+end
+
+
+
+
+

lib/example.rb

@@ -0,0 +1,8 @@
+require_relative 'game'
+require_relative 'board'
+require_relative 'player'
+require_relative 'human'
+require_relative 'ai'
+
+game = Game.new
+game.play