Class: CallOfDuty::Cod4Server

Inherits:
Object
  • Object
show all
Defined in:
lib/call_of_duty/cod4_server.rb

Overview

Thanks Tom Russell www.trdev.co.uk/posts/hello-world/

Constant Summary collapse

QUERY_TIMEOUT =

maximum query of 5 seconds

5
QUERY_STRING = 
"\xFF\xFF\xFF\xFFgetstatus\x00"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(ip_address, port = "28960") ⇒ Cod4Server

Returns a new instance of Cod4Server.



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# File 'lib/call_of_duty/cod4_server.rb', line 16

def initialize(ip_address, port = "28960")
  @ip_address = ip_address
  @port = port
end

Instance Attribute Details

#currplayers ⇒ Object

Returns the value of attribute currplayers.



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# File 'lib/call_of_duty/cod4_server.rb', line 14

def currplayers
  @currplayers
end

#ip_address ⇒ Object

Returns the value of attribute ip_address.



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# File 'lib/call_of_duty/cod4_server.rb', line 12

def ip_address
  @ip_address
end

#mapname ⇒ Object

Returns the value of attribute mapname.



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# File 'lib/call_of_duty/cod4_server.rb', line 13

def mapname
  @mapname
end

#maxplayers ⇒ Object

Returns the value of attribute maxplayers.



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# File 'lib/call_of_duty/cod4_server.rb', line 14

def maxplayers
  @maxplayers
end

#players ⇒ Object

Returns the value of attribute players.



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# File 'lib/call_of_duty/cod4_server.rb', line 13

def players
  @players
end

#port ⇒ Object

Returns the value of attribute port.



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# File 'lib/call_of_duty/cod4_server.rb', line 12

def port
  @port
end

#response ⇒ Object

Returns the value of attribute response.



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# File 'lib/call_of_duty/cod4_server.rb', line 13

def response
  @response
end

#servername ⇒ Object

Returns the value of attribute servername.



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# File 'lib/call_of_duty/cod4_server.rb', line 13

def servername
  @servername
end

Instance Method Details

#query_server ⇒ Object 



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# File 'lib/call_of_duty/cod4_server.rb', line 21

def query_server
  begin
    socket = UDPSocket.open
    socket.send(QUERY_STRING, 0, @ip_address, @port)
    response = if IO.select([socket], nil, nil, QUERY_TIMEOUT)
      socket.recvfrom(65536)  #wait 5 seconds to recieve 65536 bytes of data
    end
    if response
      data = response.first.split("\\")
      players_arr = data.last.split("\n")
      players_arr.shift
      @maxplayers = data[data.index("sv_maxclients")+1]
      @currplayers = players_arr.size
      @players = []
      players_arr.sort! do |a,b|
        t1 = a.split(" ")
        t2 = b.split(" ")
        t2[0].to_i <=> t1[0].to_i
      end
      players_arr.each do |player|
        p = player.split(" ")
        score = p[0]
        ping = p[1]
        p.delete_at(0)
        p.delete_at(0)
        p = p.join(" ")
        @players.push({:score => score, :ping => ping, :name => p.gsub("\"","")})
      end
      @mapname = data[data.index("mapname")+1]
      @servername = data[data.index("sv_hostname")+1]
      @response = response
    end
  rescue IOError, SystemCallError
    #TODO: something smart
  ensure 
    socket.close if socket
  end
  response ? true : false
end