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Ruby - Štatistiky hokeja v.2

Vzorky kód hokejových štatistík verzia 2 v Ruby. Príklady využitia funkcií, čítanie zo súboru a ďalších konštrukcií.

require "rexml/document"


if (ARGV.length == 3)
  INPUT_FILE = ARGV[0]
  COMMANDS_FILE = ARGV[1]
  output_file = ARGV[2]
else
  puts "Wrong argumnts number"
  exit
end


class Team
  attr_accessor :name, :attack_home, :attack_away, :defense_home, :defense_away, :points_home, :points_away, :points_all
  @@teams = []

  def initialize(name)
    @name = name
    @attack_home = 0
    @attack_away = 0
    @defense_home = 0
    @defense_away = 0
    @points_home = 0
    @points_away = 0
    @points_all = 0
    @@teams << self
  end

  def Team.contains?(name)
    return @@teams.find{ |t| t.name == name }
  end


  def Team.printa
    @@teams.each {|t| p t}
  end

  def Team.get_most_points(num, type)
    case type
      when "all"
      return @@teams.sort_by{ |t| t.points_all }.reverse[0,num].map{|t| [t.name, t.points_all]}
      when "home"
      return @@teams.sort_by{ |t| t.points_home }.reverse[0,num].map{|t| [t.name, t.points_home]}
      when "away"
      return @@teams.sort_by{ |t| t.points_away }.reverse[0,num].map{|t| [t.name, t.points_away]}
    end
  end


end


class Match
  attr_accessor :date, :round, :home, :visitors, :attack_home, :attack_visitors, :delayed
  @@matches = []

  def initialize(date, round, home, visitors, attack_home, attack_visitors, delayed)
    @date = date
    @round = round
    @home = home
    @visitors = visitors
    @attack_home = attack_home
    @attack_visitors = attack_visitors
    @delayed = delayed

    @@matches << self
  end

  def Match.load(filename)
    File.open(filename, "r") do |f|
      f.each_line do |line|
        splited = line.strip.split(",")
        result = splited[4].split(":")
        Match.new(splited[0], splited[1].to_i, splited[2], splited[3], result[0].to_i, result[1].to_i, (splited[4][splited[4].length - 1].chr == ")"))
      end
    end
  end

 def Match.analyze(selection)
    @@matches.each do |match|
      if (selection.include?(match.round))
      team_home = Team.contains?(match.home)
      team_home = Team.new(match.home) if (team_home == nil)
      team_visitors = Team.contains?(match.visitors)
      team_visitors = Team.new(match.visitors) if (team_visitors == nil)

      team_home.attack_home += match.attack_home
      team_home.defense_home += match.attack_visitors
      team_visitors.attack_away +=  match.attack_visitors
      team_visitors.defense_away +=  match.attack_home

      if match.delayed
        team_home.points_home += 2 if (match.attack_home > match.attack_visitors)
        team_visitors.points_away += 2 if (match.attack_visitors > match.attack_home)
        team_home.points_home +=1 if (match.attack_home < match.attack_visitors)
        team_visitors.points_away +=1 if (match.attack_visitors < match.attack_home)
      else
        team_home.points_home += 3 if (match.attack_home > match.attack_visitors)
        team_visitors.points_away += 3 if (match.attack_visitors > match.attack_home)
      end

      team_home.points_all = team_home.points_home + team_home.points_away
      team_visitors.points_all = team_visitors.points_home + team_visitors.points_away
    end
  end
end

end




class Statistic
  attr_reader :name, :type, :num
  @@rounds = []
  @@statistics = []

  def Statistic.get_rounds
    return @@rounds
  end

  def initialize(name, num, type)
    @name = name
    @num = num
    @type = type
    @@statistics << self
  end

  def Statistic.load(filename)
    File.open(filename,"r") do |f|
      doc = REXML::Document.new(f)
      doc.root.elements.each do |element|
        if element.name == "rounds" #element.name == "rounds"
          element.elements.each do |round|
            if round.name == "round"  #element.name == "round"
              @@rounds << round.text.to_i
            else                     #element.name == "range"
              from = round.elements[1].text.to_i
              to = round.elements[2].text.to_i
              count = ((to - from) + 1)
              count.times { |i| @@rounds << from + i }
            end
          end
        else #element.name == "statistics"
          element.elements.each { |s| Statistic.new(s.name, s.attributes["num"].to_i, s.attributes["type"]) }
        end
      end
    end
  end

  def Statistic.process
    @@statistics.each do |statistic|
      case statistic.name
        when "most-points"
        Team.get_most_points(statistic.num, statistic.type).each_with_index { |t,i| puts "#{i + 1}. #{t[0]} #{t[1]}"}
      end
      puts
    end
  end


    def Statistic.printa
      p @@statistics
    end

end


Statistic.load(COMMANDS_FILE)

Match.load(INPUT_FILE)
Match.analyze(Statistic.get_rounds)

Statistic.process()

K behu nasledujúceho programu sú potrebné vstupné súbory, ktoré pochádza z materiálov Unicorn College.


 

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Aplikácia je vrátane zdrojových kódov v jazyku Ruby

 

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Program pre vás napísal David Hartinger
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David je zakladatelem ITnetwork a programování se profesionálně věnuje 15 let. Má rád Nirvanu, nemovitosti a svobodu podnikání.
Unicorn university David sa informačné technológie naučil na Unicorn University - prestížnej súkromnej vysokej škole IT a ekonómie.
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