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[shogi-server/shogi-server.git] / shogi_server / game.rb
1 ## $Id$
2
3 ## Copyright (C) 2004 NABEYA Kenichi (aka nanami@2ch)
4 ## Copyright (C) 2007-2008 Daigo Moriwaki (daigo at debian dot org)
5 ##
6 ## This program is free software; you can redistribute it and/or modify
7 ## it under the terms of the GNU General Public License as published by
8 ## the Free Software Foundation; either version 2 of the License, or
9 ## (at your option) any later version.
10 ##
11 ## This program is distributed in the hope that it will be useful,
12 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 ## GNU General Public License for more details.
15 ##
16 ## You should have received a copy of the GNU General Public License
17 ## along with this program; if not, write to the Free Software
18 ## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19
20 require 'shogi_server/league/floodgate'
21 require 'observer'
22
23 module ShogiServer # for a namespace
24
25 # MonitorObserver obserers GameResult to send messages to the monotors
26 # watching the game
27 #
28 class MonitorObserver
29   def update(game_result)
30     game_result.game.each_monitor do |monitor|
31       monitor.write_safe("##[MONITOR][%s] %s\n" % [game_result.game.game_id, game_result.result_type])
32     end
33   end
34 end
35
36 # Base class for a game result
37 #
38 class GameResult
39   include Observable
40
41   # Game object
42   attr_reader :game
43   # Array of players
44   attr_reader :players
45   # Black player object
46   attr_reader :black
47   # White plyer object
48   attr_reader :white
49   # Command to send monitors such as '%TORYO' etc...
50   attr_reader :result_type
51
52   def initialize(game, p1, p2)
53     @game = game
54     @players = [p1, p2]
55     if p1.sente && !p2.sente
56       @black, @white = p1, p2
57     elsif !p1.sente && p2.sente
58       @black, @white = p2, p1
59     else
60       raise "Never reached!"
61     end
62     @players.each do |player|
63       player.status = "connected"
64     end
65     @result_type = ""
66
67     regist_observers
68   end
69
70   def regist_observers
71     add_observer MonitorObserver.new
72
73     if League::Floodgate.game_name?(@game.game_name) &&
74        @game.sente.player_id &&
75        @game.gote.player_id &&
76        $options["floodgate-history"]
77       add_observer League::Floodgate::History.factory
78     end
79   end
80
81   def process
82     raise "Implement me!"
83   end
84
85   def notify
86     changed
87     notify_observers(self)
88   end
89
90   def log(str)
91     @game.log_game(str)
92   end
93
94   def log_board
95     log(@game.board.to_s.gsub(/^/, "\'").chomp)
96   end
97
98 end
99
100 class GameResultWin < GameResult
101   attr_reader :winner, :loser
102
103   def initialize(game, winner, loser)
104     super
105     @winner, @loser = winner, loser
106     @winner.last_game_win = true
107     @loser.last_game_win  = false
108   end
109
110   def log_summary(type)
111     log_board
112
113     black_result = white_result = ""
114     if @black == @winner
115       black_result = "win"
116       white_result = "lose"
117     else
118       black_result = "lose"
119       white_result = "win"
120     end
121     log("'summary:%s:%s %s:%s %s" % [type, 
122                                      @black.name, black_result,
123                                      @white.name, white_result])
124
125   end
126 end
127
128 class GameResultAbnormalWin < GameResultWin
129   def process
130     @winner.write_safe("%TORYO\n#RESIGN\n#WIN\n")
131     @loser.write_safe( "%TORYO\n#RESIGN\n#LOSE\n")
132     log("%TORYO")
133     log_summary("abnormal")
134     @result_type = "%TORYO"
135     notify
136   end
137 end
138
139 class GameResultTimeoutWin < GameResultWin
140   def process
141     @winner.write_safe("#TIME_UP\n#WIN\n")
142     @loser.write_safe( "#TIME_UP\n#LOSE\n")
143     log_summary("time up")
144     @result_type = "#TIME_UP"
145     notify
146   end
147 end
148
149 # A player declares (successful) Kachi
150 class GameResultKachiWin < GameResultWin
151   def process
152     @winner.write_safe("%KACHI\n#JISHOGI\n#WIN\n")
153     @loser.write_safe( "%KACHI\n#JISHOGI\n#LOSE\n")
154     log("%KACHI")
155     log_summary("kachi")
156     @result_type = "%KACHI"
157     notify
158   end
159 end
160
161 # A player declares wrong Kachi
162 class GameResultIllegalKachiWin < GameResultWin
163   def process
164     @winner.write_safe("%KACHI\n#ILLEGAL_MOVE\n#WIN\n")
165     @loser.write_safe( "%KACHI\n#ILLEGAL_MOVE\n#LOSE\n")
166     log("%KACHI")
167     log_summary("illegal kachi")
168     @result_type = "%KACHI"
169     notify
170   end
171 end
172
173 class GameResultIllegalWin < GameResultWin
174   def initialize(game, winner, loser, cause)
175     super(game, winner, loser)
176     @cause = cause
177   end
178
179   def process
180     @winner.write_safe("#ILLEGAL_MOVE\n#WIN\n")
181     @loser.write_safe( "#ILLEGAL_MOVE\n#LOSE\n")
182     log_summary(@cause)
183     @result_type = "#ILLEGAL_MOVE"
184     notify
185   end
186 end
187
188 class GameResultIllegalMoveWin < GameResultIllegalWin
189   def initialize(game, winner, loser)
190     super(game, winner, loser, "illegal move")
191   end
192 end
193
194 class GameResultUchifuzumeWin < GameResultIllegalWin
195   def initialize(game, winner, loser)
196     super(game, winner, loser, "uchifuzume")
197   end
198 end
199
200 class GameResultOuteKaihiMoreWin < GameResultIllegalWin
201   def initialize(game, winner, loser)
202     super(game, winner, loser, "oute_kaihimore")
203   end
204 end
205
206 class GameResultOutoriWin < GameResultWin
207   def initialize(game, winner, loser)
208     super(game, winner, loser)
209   end
210 end
211
212 class GameResultToryoWin < GameResultWin
213   def process
214     @winner.write_safe("%TORYO\n#RESIGN\n#WIN\n")
215     @loser.write_safe( "%TORYO\n#RESIGN\n#LOSE\n")
216     log("%TORYO")
217     log_summary("toryo")
218     @result_type = "%TORYO"
219     notify
220   end
221 end
222
223 class GameResultOuteSennichiteWin < GameResultWin
224   def process
225     @winner.write_safe("#OUTE_SENNICHITE\n#WIN\n")
226     @loser.write_safe( "#OUTE_SENNICHITE\n#LOSE\n")
227     log_summary("oute_sennichite")
228     @result_type = "#OUTE_SENNICHITE"
229     notify
230   end
231 end
232
233 class GameResultDraw < GameResult
234   def initialize(game, p1, p2)
235     super
236     p1.last_game_win = false
237     p2.last_game_win = false
238   end
239   
240   def log_summary(type)
241     log_board
242     log("'summary:%s:%s draw:%s draw" % [type, @black.name, @white.name])
243   end
244 end
245
246 class GameResultSennichiteDraw < GameResultDraw
247   def process
248     @players.each do |player|
249       player.write_safe("#SENNICHITE\n#DRAW\n")
250     end
251     log_summary("sennichite")
252     @result_type = "#SENNICHITE"
253     notify
254   end
255 end
256
257 class Game
258   @@mutex = Mutex.new
259   @@time  = 0
260
261   def initialize(game_name, player0, player1)
262     @monitors = Array::new
263     @game_name = game_name
264     if (@game_name =~ /-(\d+)-(\d+)$/)
265       @total_time = $1.to_i
266       @byoyomi = $2.to_i
267     end
268
269     if (player0.sente)
270       @sente, @gote = player0, player1
271     else
272       @sente, @gote = player1, player0
273     end
274     @sente.socket_buffer.clear
275     @gote.socket_buffer.clear
276     @current_player, @next_player = @sente, @gote
277     @sente.game = self
278     @gote.game  = self
279
280     @last_move = ""
281     @current_turn = 0
282
283     @sente.status = "agree_waiting"
284     @gote.status  = "agree_waiting"
285
286     @game_id = sprintf("%s+%s+%s+%s+%s", 
287                   $league.event, @game_name, 
288                   @sente.name, @gote.name, issue_current_time)
289     
290     now = Time.now
291     log_dir_name = File.join($league.dir, 
292                              now.strftime("%Y"),
293                              now.strftime("%m"),
294                              now.strftime("%d"))
295     FileUtils.mkdir_p(log_dir_name) unless File.exist?(log_dir_name)
296     @logfile = File.join(log_dir_name, @game_id + ".csa")
297
298     $league.games[@game_id] = self
299
300     log_message(sprintf("game created %s", @game_id))
301
302     @board = Board::new
303     @board.initial
304     @start_time = nil
305     @fh = open(@logfile, "w")
306     @fh.sync = true
307     @result = nil
308
309     propose
310   end
311   attr_accessor :game_name, :total_time, :byoyomi, :sente, :gote, :game_id, :board, :current_player, :next_player, :fh, :monitors
312   attr_accessor :last_move, :current_turn
313   attr_reader   :result
314
315   def rated?
316     @sente.rated? && @gote.rated?
317   end
318
319   def turn?(player)
320     return player.status == "game" && @current_player == player
321   end
322
323   def monitoron(monitor)
324     @monitors.delete(monitor)
325     @monitors.push(monitor)
326   end
327
328   def monitoroff(monitor)
329     @monitors.delete(monitor)
330   end
331
332   def each_monitor
333     @monitors.each do |monitor|
334       yield monitor
335     end
336   end
337
338   def log_game(str)
339     if @fh.closed?
340       log_error("Failed to write to Game[%s]'s log file: %s" %
341                 [@game_id, str])
342     end
343     @fh.printf("%s\n", str)
344   end
345
346   def reject(rejector)
347     @sente.write_safe(sprintf("REJECT:%s by %s\n", @game_id, rejector))
348     @gote.write_safe(sprintf("REJECT:%s by %s\n", @game_id, rejector))
349     finish
350   end
351
352   def kill(killer)
353     [@sente, @gote].each do |player|
354       if ["agree_waiting", "start_waiting"].include?(player.status)
355         reject(killer.name)
356         return # return from this method
357       end
358     end
359     
360     if (@current_player == killer)
361       result = GameResultAbnormalWin.new(self, @next_player, @current_player)
362       result.process
363       finish
364     end
365   end
366
367   def finish
368     log_message(sprintf("game finished %s", @game_id))
369     @fh.printf("'$END_TIME:%s\n", Time::new.strftime("%Y/%m/%d %H:%M:%S"))    
370     @fh.close
371
372     @sente.game = nil
373     @gote.game = nil
374     @sente.status = "connected"
375     @gote.status = "connected"
376
377     if (@current_player.protocol == LoginCSA::PROTOCOL)
378       @current_player.finish
379     end
380     if (@next_player.protocol == LoginCSA::PROTOCOL)
381       @next_player.finish
382     end
383     @monitors = Array::new
384     @sente = nil
385     @gote = nil
386     @current_player = nil
387     @next_player = nil
388     $league.games.delete(@game_id)
389   end
390
391   # class Game
392   def handle_one_move(str, player)
393     unless turn?(player)
394       return false if str == :timeout
395
396       @fh.puts("'Deferred %s" % [str])
397       log_warning("Deferred a move [%s] scince it is not %s 's turn." %
398                   [str, player.name])
399       player.socket_buffer << str # always in the player's thread
400       return nil
401     end
402
403     finish_flag = true
404     @end_time = Time::new
405     t = [(@end_time - @start_time).floor, Least_Time_Per_Move].max
406     
407     move_status = nil
408     if ((@current_player.mytime - t <= -@byoyomi) && 
409         ((@total_time > 0) || (@byoyomi > 0)))
410       status = :timeout
411     elsif (str == :timeout)
412       return false            # time isn't expired. players aren't swapped. continue game
413     else
414       @current_player.mytime -= t
415       if (@current_player.mytime < 0)
416         @current_player.mytime = 0
417       end
418
419       move_status = @board.handle_one_move(str, @sente == @current_player)
420       # log_debug("move_status: %s for %s's %s" % [move_status, @sente == @current_player ? "BLACK" : "WHITE", str])
421
422       if [:illegal, :uchifuzume, :oute_kaihimore].include?(move_status)
423         @fh.printf("'ILLEGAL_MOVE(%s)\n", str)
424       else
425         if [:normal, :outori, :sennichite, :oute_sennichite_sente_lose, :oute_sennichite_gote_lose].include?(move_status)
426           # Thinking time includes network traffic
427           @sente.write_safe(sprintf("%s,T%d\n", str, t))
428           @gote.write_safe(sprintf("%s,T%d\n", str, t))
429           @fh.printf("%s\nT%d\n", str, t)
430           @last_move = sprintf("%s,T%d", str, t)
431           @current_turn += 1
432         end
433
434         @monitors.each do |monitor|
435           monitor.write_safe(show.gsub(/^/, "##[MONITOR][#{@game_id}] "))
436           monitor.write_safe(sprintf("##[MONITOR][%s] +OK\n", @game_id))
437         end
438       end
439     end
440
441     result = nil
442     if (@next_player.status != "game") # rival is logout or disconnected
443       result = GameResultAbnormalWin.new(self, @current_player, @next_player)
444     elsif (status == :timeout)
445       # current_player losed
446       result = GameResultTimeoutWin.new(self, @next_player, @current_player)
447     elsif (move_status == :illegal)
448       result = GameResultIllegalMoveWin.new(self, @next_player, @current_player)
449     elsif (move_status == :kachi_win)
450       result = GameResultKachiWin.new(self, @current_player, @next_player)
451     elsif (move_status == :kachi_lose)
452       result = GameResultIllegalKachiWin.new(self, @next_player, @current_player)
453     elsif (move_status == :toryo)
454       result = GameResultToryoWin.new(self, @next_player, @current_player)
455     elsif (move_status == :outori)
456       # The current player captures the next player's king
457       result = GameResultOutoriWin.new(self, @current_player, @next_player)
458     elsif (move_status == :oute_sennichite_sente_lose)
459       result = GameResultOuteSennichiteWin.new(self, @gote, @sente) # Sente is checking
460     elsif (move_status == :oute_sennichite_gote_lose)
461       result = GameResultOuteSennichiteWin.new(self, @sente, @gote) # Gote is checking
462     elsif (move_status == :sennichite)
463       result = GameResultSennichiteDraw.new(self, @current_player, @next_player)
464     elsif (move_status == :uchifuzume)
465       # the current player losed
466       result = GameResultUchifuzumeWin.new(self, @next_player, @current_player)
467     elsif (move_status == :oute_kaihimore)
468       # the current player losed
469       result = GameResultOuteKaihiMoreWin.new(self, @next_player, @current_player)
470     else
471       finish_flag = false
472     end
473     result.process if result
474     finish() if finish_flag
475     @current_player, @next_player = @next_player, @current_player
476     @start_time = Time::new
477     return finish_flag
478   end
479
480   def start
481     log_message(sprintf("game started %s", @game_id))
482     @sente.write_safe(sprintf("START:%s\n", @game_id))
483     @gote.write_safe(sprintf("START:%s\n", @game_id))
484     @sente.mytime = @total_time
485     @gote.mytime = @total_time
486     @start_time = Time::new
487   end
488
489   def propose
490     @fh.puts("V2")
491     @fh.puts("N+#{@sente.name}")
492     @fh.puts("N-#{@gote.name}")
493     @fh.puts("$EVENT:#{@game_id}")
494
495     @sente.write_safe(propose_message("+"))
496     @gote.write_safe(propose_message("-"))
497
498     now = Time::new.strftime("%Y/%m/%d %H:%M:%S")
499     @fh.puts("$START_TIME:#{now}")
500     @fh.print <<EOM
501 P1-KY-KE-GI-KI-OU-KI-GI-KE-KY
502 P2 * -HI *  *  *  *  * -KA * 
503 P3-FU-FU-FU-FU-FU-FU-FU-FU-FU
504 P4 *  *  *  *  *  *  *  *  * 
505 P5 *  *  *  *  *  *  *  *  * 
506 P6 *  *  *  *  *  *  *  *  * 
507 P7+FU+FU+FU+FU+FU+FU+FU+FU+FU
508 P8 * +KA *  *  *  *  * +HI * 
509 P9+KY+KE+GI+KI+OU+KI+GI+KE+KY
510 +
511 EOM
512     if rated?
513       black_name = @sente.rated? ? @sente.player_id : @sente.name
514       white_name = @gote.rated?  ? @gote.player_id  : @gote.name
515       @fh.puts("'rating:%s:%s" % [black_name, white_name])
516     end
517   end
518
519   def show()
520     str0 = <<EOM
521 BEGIN Game_Summary
522 Protocol_Version:1.1
523 Protocol_Mode:Server
524 Format:Shogi 1.0
525 Declaration:Jishogi 1.1
526 Game_ID:#{@game_id}
527 Name+:#{@sente.name}
528 Name-:#{@gote.name}
529 Rematch_On_Draw:NO
530 To_Move:+
531 BEGIN Time
532 Time_Unit:1sec
533 Total_Time:#{@total_time}
534 Byoyomi:#{@byoyomi}
535 Least_Time_Per_Move:#{Least_Time_Per_Move}
536 Remaining_Time+:#{@sente.mytime}
537 Remaining_Time-:#{@gote.mytime}
538 Last_Move:#{@last_move}
539 Current_Turn:#{@current_turn}
540 END Time
541 BEGIN Position
542 EOM
543
544     str1 = <<EOM
545 END Position
546 END Game_Summary
547 EOM
548
549     return str0 + @board.to_s + str1
550   end
551
552   def propose_message(sg_flag)
553     str = <<EOM
554 BEGIN Game_Summary
555 Protocol_Version:1.1
556 Protocol_Mode:Server
557 Format:Shogi 1.0
558 Declaration:Jishogi 1.1
559 Game_ID:#{@game_id}
560 Name+:#{@sente.name}
561 Name-:#{@gote.name}
562 Your_Turn:#{sg_flag}
563 Rematch_On_Draw:NO
564 To_Move:+
565 BEGIN Time
566 Time_Unit:1sec
567 Total_Time:#{@total_time}
568 Byoyomi:#{@byoyomi}
569 Least_Time_Per_Move:#{Least_Time_Per_Move}
570 END Time
571 BEGIN Position
572 P1-KY-KE-GI-KI-OU-KI-GI-KE-KY
573 P2 * -HI *  *  *  *  * -KA * 
574 P3-FU-FU-FU-FU-FU-FU-FU-FU-FU
575 P4 *  *  *  *  *  *  *  *  * 
576 P5 *  *  *  *  *  *  *  *  * 
577 P6 *  *  *  *  *  *  *  *  * 
578 P7+FU+FU+FU+FU+FU+FU+FU+FU+FU
579 P8 * +KA *  *  *  *  * +HI * 
580 P9+KY+KE+GI+KI+OU+KI+GI+KE+KY
581 P+
582 P-
583 +
584 END Position
585 END Game_Summary
586 EOM
587     return str
588   end
589   
590   private
591   
592   def issue_current_time
593     time = Time::new.strftime("%Y%m%d%H%M%S").to_i
594     @@mutex.synchronize do
595       while time <= @@time do
596         time += 1
597       end
598       @@time = time
599     end
600   end
601 end
602
603 end # ShogiServer