lib/plugins/ics/lib/match_handler.rb

   1 # Copyright (c) 2009 Paolo Capriotti <p.capriotti@gmail.com>
   2 #
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 2 of the License, or
   6 # (at your option) any later version.
   7
   8 require 'interaction/match'
   9 require_bundle 'ics', 'icsplayer'
  10
  11 module ICS
  12
  13 #
  14 # Handler for ICS games.
  15 #
  16 # Responds to ICS protocol events creating and updating matches.
  17 # Matches are stored in the @matches instance variable. It is possible to
  18 # have more than one match running on FICS because of the observe feature.
  19 #
  20 class MatchHandler
  21   include Observer
  22
  23   attr_reader :matches
  24
  25   def initialize(user, protocol)
  26     @protocol = protocol
  27     @matches = { }
  28     @user = user
  29
  30     protocol.add_observer(self)
  31   end
  32
  33   def on_creating_game(data)
  34     match = Match.new(data[:game],
  35         :kind => :ics,
  36         :editable => false,
  37         :time_running => true)
  38     @matches[data[:number]] = [match, data.merge(:type => :played)]
  39   end
  40
  41   def on_end_game(data)
  42     entry = @matches.delete(data[:game_number])
  43     if entry
  44       match, info = entry
  45       match.close(data[:result], data[:message])
  46     end
  47   end
  48
  49   def on_end_examination(number)
  50     on_end_game(:game_number => number,
  51                 :result => '',
  52                 :message => '')
  53   end
  54
  55   def on_examination_revert(data)
  56     match, match_info = @matches[data[:game_number]]
  57     if match_info
  58       match_info[:about_to_revert_to] = data[:index]
  59     end
  60   end
  61
  62   def on_style12(style12)
  63     match, match_info = @matches[style12.game_number]
  64     if match.nil? && style12.relation == Style12::Relation::EXAMINING
  65       # if it is an examined game, start a new match
  66       match = Match.new(Game.dummy, :kind => :ics, :editable => true, :navigable => true)
  67       match_info = style12.match_info.merge(:type => :examined)
  68       @matches[style12.game_number] = [match, match_info]
  69
  70       # request more info from the server
  71       @protocol.connection.send_text('moves')
  72       @protocol.observe_limited(:movelist) do |movelist|
  73         puts "movelist = #{movelist.inspect}"
  74         true
  75       end
  76     end
  77
  78     if match.started?
  79       match_info[:icsplayer].on_style12(style12)
  80     else
  81       rel = style12.relation
  82       state = style12.state
  83       turns = [state.turn, state.opposite_turn(state.turn)]
  84       @user.color, opponent_color =
  85         if rel == Style12::Relation::MY_MOVE
  86           turns
  87         elsif rel == Style12::Relation::NOT_MY_MOVE
  88           turns.reverse
  89         else
  90           [nil, turns[1]]
  91         end
  92       opponent = ICSPlayer.new(
  93         lambda {|msg| @protocol.connection.send_text(msg) },
  94         opponent_color,
  95         match,
  96         match_info)
  97       match_info[:icsplayer] = opponent
  98
  99       player = @user
 100
 101       # in examined games, playing moves for the opponent is allowed
 102       if @user.color.nil?
 103         player = DummyPlayer.new(state.turn)
 104         @user.add_controlled_player(player)
 105         @user.add_controlled_player(opponent)
 106         @user.premove = false
 107       else
 108         @user.premove = true
 109       end
 110
 111       player.name = match_info[player.color][:name]
 112
 113       match.register(player)
 114       match.register(opponent)
 115
 116       match.start(player)
 117       match.start(opponent)
 118
 119       raise "couldn't start match" unless match.started?
 120       unless match_info[:icsapi].same_state(match.state, style12.state)
 121         match.history.state = style12.state
 122       end
 123
 124       @user.reset(match)
 125
 126       match.update_time(style12.time)
 127     end
 128
 129
 130   end
 131 end
 132
 133 end