Simple solution for war task

Training/Medium/war.rb

@@ -0,0 +1,132 @@
+# Solution for https://www.codingame.com/ide/puzzle/winamax-battle
+class War
+  attr_accessor :rounds, :player1, :player2, :stop, :p1_war_cards, :p2_war_cards, :p1_card, :p2_card
+
+  def initialize
+    @rounds = 0
+    player1_cards_number = gets.to_i
+    @player1 = Player.new(player1_cards_number)
+    player2_cards_number = gets.to_i
+    @player2 = Player.new(player2_cards_number)
+  end
+
+  def equal_game?
+    player1.cards.size < 4 || player2.cards.size < 4
+  end
+
+  def chained_war_cards
+    p1_war_cards.unshift(p1_card)
+    p2_war_cards.unshift(p2_card)
+  end
+
+  def war
+    init_war_cards
+    chained_war_cards if player1.cards_on_table.empty?
+    player1.init_cards_on_table(p1_war_cards)
+    player2.init_cards_on_table(p2_war_cards)
+  end
+
+  def init_war_cards
+    self.p1_war_cards = Array.new(4) { player1.cards.pop }
+    self.p2_war_cards = Array.new(4) { player2.cards.pop }
+  end
+
+  def equal_cards
+    if equal_game?
+      self.stop = true
+    else
+      war
+      battle
+    end
+  end
+
+  def compare_players_cards
+    p1_strength = player1.card_strength(p1_card)
+    p2_strength = player2.card_strength(p2_card)
+    equal_cards if p1_strength == p2_strength
+    cards = player1.cards_on_table + player2.cards_on_table
+    if p1_strength > p2_strength
+      player1.take_cards(cards)
+    else
+      player2.take_cards(cards)
+    end
+  end
+
+  def battle
+    self.p1_card = player1.cards_on_table.last
+    self.p2_card = player2.cards_on_table.last
+    compare_players_cards
+    clean_cards_on_table
+  end
+
+  def clean_cards_on_table
+    player1.clean_cards_on_table
+    player2.clean_cards_on_table
+  end
+
+  def result
+    if stop
+      'PAT'
+    else
+      winner = 1
+      winner = 2 if player1.cards.size < player2.cards.size
+      "#{winner} #{rounds}"
+    end
+  end
+
+  def game_not_ended?
+    !player1.cards.empty? && !player2.cards.empty? && stop.nil?
+  end
+
+  def start_game
+    while game_not_ended?
+      self.rounds += 1
+      player1.init_cards_on_table([player1.cards.pop])
+      player2.init_cards_on_table([player2.cards.pop])
+      battle
+    end
+    result
+  end
+end
+
+# Child class representing player
+class Player
+  attr_accessor :cards, :card_strength, :cards_on_table
+  attr_reader :cards_number, :cards_strength
+
+  def initialize(cards_number)
+    @cards_strength = %w(2 3 4 5 6 7 8 9 10 J Q K A)
+    @cards_number = cards_number
+    @cards = init_cards
+    @cards_on_table = []
+  end
+
+  def init_cards
+    cards = Queue.new
+    cards_number.times do
+      cards << gets.chomp
+    end
+    cards
+  end
+
+  def card_strength(card)
+    cards_strength.index(card[0...-1])
+  end
+
+  def take_cards(cards)
+    cards.each do |card|
+      self.cards << card
+    end
+  end
+
+  def init_cards_on_table(cards)
+    cards.each { |card| cards_on_table << card }
+  end
+
+  def clean_cards_on_table
+    self.cards_on_table = []
+  end
+end
+
+war = War.new
+puts war.start_game