Class: DemoReaderWarsow

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filename) ⇒ DemoReaderWarsow

Returns a new instance of DemoReaderWarsow.



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# File 'lib/demo_reader_warsow.rb', line 5

def initialize(filename)
  @filename = filename
  @game = "Warsow"
  @version = -1
  @mapname = nil
  @time = nil
  @time_in_msec = nil
  @playernames = []
  @scoreboards = []
  @gamemode = nil
  @player = nil
  @basegamedir = nil
  @gamedir = nil
  @valid = false

  self.init()
end

Instance Attribute Details

#basegamedir ⇒ Object (readonly)

Returns the value of attribute basegamedir.



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# File 'lib/demo_reader_warsow.rb', line 2

def basegamedir
  @basegamedir
end

#filename ⇒ Object (readonly)

Returns the value of attribute filename.



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# File 'lib/demo_reader_warsow.rb', line 2

def filename
  @filename
end

#game ⇒ Object (readonly)

Returns the value of attribute game.



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# File 'lib/demo_reader_warsow.rb', line 2

def game
  @game
end

#gamedir ⇒ Object (readonly)

Returns the value of attribute gamedir.



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# File 'lib/demo_reader_warsow.rb', line 2

def gamedir
  @gamedir
end

#gamemode ⇒ Object (readonly)

Returns the value of attribute gamemode.



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# File 'lib/demo_reader_warsow.rb', line 2

def gamemode
  @gamemode
end

#mapname ⇒ Object (readonly)

Returns the value of attribute mapname.



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# File 'lib/demo_reader_warsow.rb', line 2

def mapname
  @mapname
end

#player ⇒ Object (readonly)

Returns the value of attribute player.



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# File 'lib/demo_reader_warsow.rb', line 2

def player
  @player
end

#playernames ⇒ Object (readonly)

Returns the value of attribute playernames.



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# File 'lib/demo_reader_warsow.rb', line 2

def playernames
  @playernames
end

#scoreboards ⇒ Object (readonly)

Returns the value of attribute scoreboards.



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# File 'lib/demo_reader_warsow.rb', line 2

def scoreboards
  @scoreboards
end

#time ⇒ Object (readonly)

Returns the value of attribute time.



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# File 'lib/demo_reader_warsow.rb', line 2

def time
  @time
end

#valid ⇒ Object (readonly)

Returns the value of attribute valid.



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# File 'lib/demo_reader_warsow.rb', line 2

def valid
  @valid
end

#version ⇒ Object (readonly)

Returns the value of attribute version.



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# File 'lib/demo_reader_warsow.rb', line 2

def version
  @version
end

Instance Method Details

#detect_version(file) ⇒ Object 



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# File 'lib/demo_reader_warsow.rb', line 179

def detect_version(file)
  # try to detect version 8, 9 or 10
  #
  file.pos = 0

  file.pos += 4 # skip 4 byte message length
  file.pos += 1  # skip 1 byte "svc_serverdata"

  # version
  # reads 4 bytes and decodes the little-endian format
  version = file.read(4).unpack('V')[0]

  return version if [8, 9, 10].include? version


  # try to detect version 11
  #
  file.pos = 0

  file.pos += 1  # skip 1 byte "svc_demoinfo"

  file.pos += 4  # skip 4 byte "initial server time"
  file.pos += 4  # skip 4 byte "demo duration in milliseconds"
  file.pos += 4  # skip 4 byte "file offset at which the final -1 was written"

  file.pos += 1  # skip 1 byte "svc_serverdata"

  file.pos += 4  # skip 4 byte "UNKNOWN! - not documented in source, but is needed to fit demos!"

  # version
  # reads 4 bytes and decodes the little-endian format
  version = file.read(4).unpack('V')[0]

  return version if version == 11

  nil # could not detect any known version
end

#gamemode_wd11(file_content) ⇒ Object 



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# File 'lib/demo_reader_warsow.rb', line 229

def gamemode_wd11(file_content)
  if file_content =~ /cs 12 "(.*?)"/
    $1
  end
end

#init ⇒ Object 



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# File 'lib/demo_reader_warsow.rb', line 25

def init
  file = File.new(@filename, 'r')

  return if file.stat.size < 10

  @version = detect_version(file)

  # just support some wd* file versions
  return unless [8, 9, 10, 11].include? @version

  # skip 4 bytes "svs.spawncount"
  file.pos += 4

  # skip 2 bytes "cl.snapFrameTime"
  file.pos += 2 if [10, 11].include? @version

  # skip 4 bytes "cl.baseServerTime"
  file.pos += 4 if @version == 10


  # FS_BaseGameDirectory
  @basegamedir = file.gets("\0").chop

  # FS_GameDirectory
  @gamedir = file.gets("\0").chop

  # skip short "playernum"
  file.pos += 2


  # mapname
  @mapname = file.gets("\0").chop.downcase

  content = file.gets nil
  file.close

  # remove illegal utf8 chars that crashes ruby 1.9.x
  #
  if RUBY_VERSION >= "1.9"
    content.encode!("ISO-8859-1", :invalid => :replace, :undef => :replace) # iso is just fine (no other chars expected)
  end



  # detect scoreboard

  regex = /scb \"([^\"]+)/
  matchdata = regex.match(content)

  while matchdata
    @scoreboards.push matchdata[1]
    matchdata = regex.match(matchdata.post_match)
  end



  # detect game mode

  if @version == 11
    @gamemode = gamemode_wd11(content)
  else
    regex = /&([^ ]+) /

    gamemodes = []
    @scoreboards.each do |scb|
      matchdata = regex.match(scb)
      gamemodes.push matchdata[1]
    end
    gamemodes.uniq!
    if gamemodes.length.zero?
      @gamemode = 'unknown'
    else
      if gamemodes.length == 1
        @gamemode = gamemodes.first
        @gamemode.chop! if ['races', 'dms', 'ctfs'].include? @gamemode
      else
        @gamemode = "multiple gamemodes found: #{gamemodes.join(', ')}!"
      end
    end
  end



  # detect time by sent message string with time from server
  if ['race', 'unknown'].include?(@gamemode)
    matches = []
    regex = /(server record|race(?: ?[\d#\^]*) finished\s*)(?:!.*(?:current|times\^7 ))?:[0-9:\. ]* (\d+):(\d+)\.(\d+)/im
    matchdata = regex.match(content)

    while matchdata
      matches.push("%02d:%02d.%03d" % [$2,$3,$4].map(&:to_i))
      matchdata = regex.match(matchdata.post_match)
    end

    if matches.length > 0
      @time = matches.sort.first
      @gamemode = 'race' if @gamemode == 'unknown'
    end

    # set gamemode to freestyle when no time exists
    #
    @gamemode = 'freestyle' if time_in_msec.to_i <= 0
  end



  #detect all player names
  matches = []
  regex = /cs ([0-9]+) \"\\name\\([^\0]*)\\hand/
  rest_content = content
  matchdata = regex.match(rest_content)
  first_no = matchdata[1].to_i

  while matchdata
    # damit werden doppelte eintraege durch den letzten aktuellen ueberschrieben
    matches[matchdata[1].to_i - first_no] = matchdata[2]
    rest_content = matchdata.post_match
    matchdata = regex.match(rest_content)
  end

  if matches.length > 0
    # save player names only
    @playernames = []
    matches.each_with_index { |player, number|
      #playernames.push [number, player].join(': ')
      @playernames[number] = player
    }
  end



  # detect player

  playernames = @playernames.compact.sort.uniq
  if playernames.length == 1
    @player = playernames.first
  else
    if @time && @gamemode == 'race' && !@scoreboards.empty? && !playernames.empty?
      min, sec, msec = @time.scan(/^([0-9]+):([0-9]+)\.([0-9]+)$/).flatten.map { |x| x.to_i }
      min = 9 if min > 9                                                      # scoreboard does not support race times > 9:55:999; max minute value is 9 !
      t = "#{min}#{sec}#{msec}"
      regex = Regexp.new("&p ([0-9]+) #{t}")
      playerids = @scoreboards.join('').scan(regex).flatten.uniq
      if playerids.length == 1
        @player = @playernames[playerids.first.to_i]
      end
    end
  end

  @valid = true
end

#time_in_msec ⇒ Object 



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# File 'lib/demo_reader_warsow.rb', line 218

def time_in_msec
  return @time_in_msec unless @time_in_msec.nil?

  # time str to int
  if @time.kind_of? String
    min, sec, msec = @time.scan(/^([0-9]+):([0-9]+)\.([0-9]+)$/).flatten.map { |x| x.to_i }
    @time_in_msec = msec + sec * 1000 + min * 60 * 1000
  end
end