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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.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(/^/, "\'"))
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\n" % [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\n")
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\n")
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\n")
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 < GameResultWin
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, "outori")
209   end
210 end
211
212 class GameReulstToryoWin < 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\n")
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\n" % [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     $league.games[@game_id] = self
299
300     log_message(sprintf("game created %s", @game_id))
301
302     @board = Board::new
303     @board.initial
304     @start_time = nil
305     @fh = open(@logfile, "w")
306     @fh.sync = true
307     @result = nil
308
309     propose
310   end
311   attr_accessor :game_name, :total_time, :byoyomi, :sente, :gote, :game_id, :board, :current_player, :next_player, :fh, :monitors
312   attr_accessor :last_move, :current_turn
313   attr_reader   :result
314
315   def rated?
316     @sente.rated? && @gote.rated?
317   end
318
319   def turn?(player)
320     return player.status == "game" && @current_player == player
321   end
322
323   def monitoron(monitor)
324     @monitors.delete(monitor)
325     @monitors.push(monitor)
326   end
327
328   def monitoroff(monitor)
329     @monitors.delete(monitor)
330   end
331
332   def each_monitor
333     @monitors.each do |monitor|
334       yield monitor
335     end
336   end
337
338   def log_game(str)
339     if @fh.closed?
340       log_error("Failed to write to Game[%s]'s log file: %s" %
341                 [@game_id, str])
342     end
343     @fh.printf("%s\n", str)
344   end
345
346   def reject(rejector)
347     @sente.write_safe(sprintf("REJECT:%s by %s\n", @game_id, rejector))
348     @gote.write_safe(sprintf("REJECT:%s by %s\n", @game_id, rejector))
349     finish
350   end
351
352   def kill(killer)
353     if ["agree_waiting", "start_waiting"].include?(@sente.status)
354       reject(killer.name)
355     elsif (@current_player == killer)
356       result = GameResultAbnormalWin.new(self, @next_player, @current_player)
357       result.process
358       finish
359     end
360   end
361
362   def finish
363     log_message(sprintf("game finished %s", @game_id))
364     @fh.printf("'$END_TIME:%s\n", Time::new.strftime("%Y/%m/%d %H:%M:%S"))    
365     @fh.close
366
367     @sente.game = nil
368     @gote.game = nil
369     @sente.status = "connected"
370     @gote.status = "connected"
371
372     if (@current_player.protocol == LoginCSA::PROTOCOL)
373       @current_player.finish
374     end
375     if (@next_player.protocol == LoginCSA::PROTOCOL)
376       @next_player.finish
377     end
378     @monitors = Array::new
379     @sente = nil
380     @gote = nil
381     @current_player = nil
382     @next_player = nil
383     $league.games.delete(@game_id)
384   end
385
386   # class Game
387   def handle_one_move(str, player)
388     unless turn?(player)
389       return false if str == :timeout
390
391       @fh.puts("'Deferred %s" % [str])
392       log_warning("Deferred a move [%s] scince it is not %s 's turn." %
393                   [str, player.name])
394       player.socket_buffer << str # always in the player's thread
395       return nil
396     end
397
398     finish_flag = true
399     @end_time = Time::new
400     t = [(@end_time - @start_time).floor, Least_Time_Per_Move].max
401     
402     move_status = nil
403     if ((@current_player.mytime - t <= -@byoyomi) && 
404         ((@total_time > 0) || (@byoyomi > 0)))
405       status = :timeout
406     elsif (str == :timeout)
407       return false            # time isn't expired. players aren't swapped. continue game
408     else
409       @current_player.mytime -= t
410       if (@current_player.mytime < 0)
411         @current_player.mytime = 0
412       end
413
414       move_status = @board.handle_one_move(str, @sente == @current_player)
415       # log_debug("move_status: %s for %s's %s" % [move_status, @sente == @current_player ? "BLACK" : "WHITE", str])
416
417       if [:illegal, :uchifuzume, :oute_kaihimore].include?(move_status)
418         @fh.printf("'ILLEGAL_MOVE(%s)\n", str)
419       else
420         if [:normal, :outori, :sennichite, :oute_sennichite_sente_lose, :oute_sennichite_gote_lose].include?(move_status)
421           # Thinking time includes network traffic
422           @sente.write_safe(sprintf("%s,T%d\n", str, t))
423           @gote.write_safe(sprintf("%s,T%d\n", str, t))
424           @fh.printf("%s\nT%d\n", str, t)
425           @last_move = sprintf("%s,T%d", str, t)
426           @current_turn += 1
427         end
428
429         @monitors.each do |monitor|
430           monitor.write_safe(show.gsub(/^/, "##[MONITOR][#{@game_id}] "))
431           monitor.write_safe(sprintf("##[MONITOR][%s] +OK\n", @game_id))
432         end
433       end
434     end
435
436     result = nil
437     if (@next_player.status != "game") # rival is logout or disconnected
438       result = GameResultAbnormalWin.new(self, @current_player, @next_player)
439     elsif (status == :timeout)
440       # current_player losed
441       result = GameResultTimeoutWin.new(self, @next_player, @current_player)
442     elsif (move_status == :illegal)
443       result = GameResultIllegalMoveWin.new(self, @next_player, @current_player)
444     elsif (move_status == :kachi_win)
445       result = GameResultKachiWin.new(self, @current_player, @next_player)
446     elsif (move_status == :kachi_lose)
447       result = GameResultIllegalKachiWin.new(self, @next_player, @current_player)
448     elsif (move_status == :toryo)
449       result = GameReulstToryoWin.new(self, @next_player, @current_player)
450     elsif (move_status == :outori)
451       # The current player captures the next player's king
452       result = GameResultOutoriWin.new(self, @current_player, @next_player)
453     elsif (move_status == :oute_sennichite_sente_lose)
454       result = GameResultOuteSennichiteWin.new(self, @gote, @sente) # Sente is checking
455     elsif (move_status == :oute_sennichite_gote_lose)
456       result = GameResultOuteSennichiteWin.new(self, @sente, @gote) # Gote is checking
457     elsif (move_status == :sennichite)
458       result = GameResultSennichiteDraw.new(self, @current_player, @next_player)
459     elsif (move_status == :uchifuzume)
460       # the current player losed
461       result = GameResultUchifuzumeWin.new(self, @next_player, @current_player)
462     elsif (move_status == :oute_kaihimore)
463       # the current player losed
464       result = GameResultOuteKaihiMoreWin.new(self, @next_player, @current_player)
465     else
466       finish_flag = false
467     end
468     result.process if result
469     finish() if finish_flag
470     @current_player, @next_player = @next_player, @current_player
471     @start_time = Time::new
472     return finish_flag
473   end
474
475   def start
476     log_message(sprintf("game started %s", @game_id))
477     @sente.write_safe(sprintf("START:%s\n", @game_id))
478     @gote.write_safe(sprintf("START:%s\n", @game_id))
479     @sente.mytime = @total_time
480     @gote.mytime = @total_time
481     @start_time = Time::new
482   end
483
484   def propose
485     @fh.puts("V2")
486     @fh.puts("N+#{@sente.name}")
487     @fh.puts("N-#{@gote.name}")
488     @fh.puts("$EVENT:#{@game_id}")
489
490     @sente.write_safe(propose_message("+"))
491     @gote.write_safe(propose_message("-"))
492
493     now = Time::new.strftime("%Y/%m/%d %H:%M:%S")
494     @fh.puts("$START_TIME:#{now}")
495     @fh.print <<EOM
496 P1-KY-KE-GI-KI-OU-KI-GI-KE-KY
497 P2 * -HI *  *  *  *  * -KA * 
498 P3-FU-FU-FU-FU-FU-FU-FU-FU-FU
499 P4 *  *  *  *  *  *  *  *  * 
500 P5 *  *  *  *  *  *  *  *  * 
501 P6 *  *  *  *  *  *  *  *  * 
502 P7+FU+FU+FU+FU+FU+FU+FU+FU+FU
503 P8 * +KA *  *  *  *  * +HI * 
504 P9+KY+KE+GI+KI+OU+KI+GI+KE+KY
505 +
506 EOM
507     if rated?
508       black_name = @sente.rated? ? @sente.player_id : @sente.name
509       white_name = @gote.rated?  ? @gote.player_id  : @gote.name
510       @fh.puts("'rating:%s:%s" % [black_name, white_name])
511     end
512   end
513
514   def show()
515     str0 = <<EOM
516 BEGIN Game_Summary
517 Protocol_Version:1.1
518 Protocol_Mode:Server
519 Format:Shogi 1.0
520 Declaration:Jishogi 1.1
521 Game_ID:#{@game_id}
522 Name+:#{@sente.name}
523 Name-:#{@gote.name}
524 Rematch_On_Draw:NO
525 To_Move:+
526 BEGIN Time
527 Time_Unit:1sec
528 Total_Time:#{@total_time}
529 Byoyomi:#{@byoyomi}
530 Least_Time_Per_Move:#{Least_Time_Per_Move}
531 Remaining_Time+:#{@sente.mytime}
532 Remaining_Time-:#{@gote.mytime}
533 Last_Move:#{@last_move}
534 Current_Turn:#{@current_turn}
535 END Time
536 BEGIN Position
537 EOM
538
539     str1 = <<EOM
540 END Position
541 END Game_Summary
542 EOM
543
544     return str0 + @board.to_s + str1
545   end
546
547   def propose_message(sg_flag)
548     str = <<EOM
549 BEGIN Game_Summary
550 Protocol_Version:1.1
551 Protocol_Mode:Server
552 Format:Shogi 1.0
553 Declaration:Jishogi 1.1
554 Game_ID:#{@game_id}
555 Name+:#{@sente.name}
556 Name-:#{@gote.name}
557 Your_Turn:#{sg_flag}
558 Rematch_On_Draw:NO
559 To_Move:+
560 BEGIN Time
561 Time_Unit:1sec
562 Total_Time:#{@total_time}
563 Byoyomi:#{@byoyomi}
564 Least_Time_Per_Move:#{Least_Time_Per_Move}
565 END Time
566 BEGIN Position
567 P1-KY-KE-GI-KI-OU-KI-GI-KE-KY
568 P2 * -HI *  *  *  *  * -KA * 
569 P3-FU-FU-FU-FU-FU-FU-FU-FU-FU
570 P4 *  *  *  *  *  *  *  *  * 
571 P5 *  *  *  *  *  *  *  *  * 
572 P6 *  *  *  *  *  *  *  *  * 
573 P7+FU+FU+FU+FU+FU+FU+FU+FU+FU
574 P8 * +KA *  *  *  *  * +HI * 
575 P9+KY+KE+GI+KI+OU+KI+GI+KE+KY
576 P+
577 P-
578 +
579 END Position
580 END Game_Summary
581 EOM
582     return str
583   end
584   
585   private
586   
587   def issue_current_time
588     time = Time::new.strftime("%Y%m%d%H%M%S").to_i
589     @@mutex.synchronize do
590       while time <= @@time do
591         time += 1
592       end
593       @@time = time
594     end
595   end
596 end
597
598 end # ShogiServer