qchess/src/game.py

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   6 # A thread that runs the game
   7 class GameThread(StoppableThread):
   8         def __init__(self, board, players):
   9                 StoppableThread.__init__(self)
  10                 self.board = board
  11                 self.players = players
  12                 self.state = {"turn" : None} # The game state
  13                 self.error = 0 # Whether the thread exits with an error
  14                 self.lock = threading.RLock() #lock for access of self.state
  15                 self.cond = threading.Condition() # conditional for some reason, I forgot
  16                 self.final_result = ""
  17
  18
  19
  20         # Run the game (run in new thread with start(), run in current thread with run())
  21         def run(self):
  22                 result = ""
  23                 while not self.stopped():
  24
  25                         for p in self.players:
  26                                 with self.lock:
  27                                         if isinstance(p, NetworkSender):
  28                                                 self.state["turn"] = p.base_player # "turn" contains the player who's turn it is
  29                                         else:
  30                                                 self.state["turn"] = p
  31                                 #try:
  32                                 if True:
  33                                         [x,y] = p.select() # Player selects a square
  34                                         if self.stopped():
  35                                                 break
  36
  37
  38
  39
  40                                         result = self.board.select(x, y, colour = p.colour)
  41                                         for p2 in self.players:
  42                                                 p2.update(result) # Inform players of what happened
  43
  44
  45                                         log(result)
  46
  47                                         target = self.board.grid[x][y]
  48                                         if isinstance(graphics, GraphicsThread):
  49                                                 with graphics.lock:
  50                                                         graphics.state["moves"] = self.board.possible_moves(target)
  51                                                         graphics.state["select"] = target
  52
  53                                         time.sleep(turn_delay)
  54
  55
  56                                         if len(self.board.possible_moves(target)) == 0:
  57                                                 #print "Piece cannot move"
  58                                                 target.deselect()
  59                                                 if isinstance(graphics, GraphicsThread):
  60                                                         with graphics.lock:
  61                                                                 graphics.state["moves"] = None
  62                                                                 graphics.state["select"] = None
  63                                                                 graphics.state["dest"] = None
  64                                                 continue
  65
  66                                         try:
  67                                                 [x2,y2] = p.get_move() # Player selects a destination
  68                                         except:
  69                                                 self.stop()
  70
  71                                         if self.stopped():
  72                                                 break
  73
  74                                         result = str(x) + " " + str(y) + " -> " + str(x2) + " " + str(y2)
  75                                         log(result)
  76
  77                                         self.board.update_move(x, y, x2, y2)
  78
  79                                         for p2 in self.players:
  80                                                 p2.update(result) # Inform players of what happened
  81
  82
  83
  84                                         if isinstance(graphics, GraphicsThread):
  85                                                 with graphics.lock:
  86                                                         graphics.state["moves"] = [[x2,y2]]
  87
  88                                         time.sleep(turn_delay)
  89
  90                                         if isinstance(graphics, GraphicsThread):
  91                                                 with graphics.lock:
  92                                                         graphics.state["select"] = None
  93                                                         graphics.state["dest"] = None
  94                                                         graphics.state["moves"] = None
  95
  96                         # Commented out exception stuff for now, because it makes it impossible to tell if I made an IndentationError somewhere
  97                         #       except Exception,e:
  98                         #               result = e.message
  99                         #               #sys.stderr.write(result + "\n")
 100                         #
 101                         #               self.stop()
 102                         #               with self.lock:
 103                         #                       self.final_result = self.state["turn"].colour + " " + e.message
 104
 105                                 end = self.board.end_condition()
 106                                 if end != None:
 107                                         with self.lock:
 108                                                 if end == "DRAW":
 109                                                         self.final_result = self.state["turn"].colour + " " + end
 110                                                 else:
 111                                                         self.final_result = end
 112                                         self.stop()
 113
 114                                 if self.stopped():
 115                                         break
 116
 117
 118                 for p2 in self.players:
 119                         p2.quit(self.final_result)
 120
 121                 log(self.final_result)
 122
 123                 if isinstance(graphics, GraphicsThread):
 124                         graphics.stop()
 125
 126
 127 # A thread that replays a log file
 128 class ReplayThread(GameThread):
 129         def __init__(self, players, src, end=False,max_moves=None):
 130                 self.board = Board(style="empty")
 131                 self.board.max_moves = max_moves
 132                 GameThread.__init__(self, self.board, players)
 133                 self.src = src
 134                 self.end = end
 135
 136                 self.reset_board(self.src.readline())
 137
 138         def reset_board(self, line):
 139                 agent_str = ""
 140                 self_str = ""
 141                 while line != "# Start game" and line != "# EOF":
 142
 143                         while line == "":
 144                                 line = self.src.readline().strip(" \r\n")
 145                                 continue
 146
 147                         if line[0] == '#':
 148                                 line = self.src.readline().strip(" \r\n")
 149                                 continue
 150
 151                         self_str += line + "\n"
 152
 153                         if self.players[0].name == "dummy" and self.players[1].name == "dummy":
 154                                 line = self.src.readline().strip(" \r\n")
 155                                 continue
 156
 157                         tokens = line.split(" ")
 158                         types = map(lambda e : e.strip("[] ,'"), tokens[2:4])
 159                         for i in range(len(types)):
 160                                 if types[i][0] == "?":
 161                                         types[i] = "unknown"
 162
 163                         agent_str += tokens[0] + " " + tokens[1] + " " + str(types) + " ".join(tokens[4:]) + "\n"
 164                         line = self.src.readline().strip(" \r\n")
 165
 166                 for p in self.players:
 167                         p.reset_board(agent_str)
 168
 169
 170                 self.board.reset_board(self_str)
 171
 172
 173         def run(self):
 174                 move_count = 0
 175                 last_line = ""
 176                 line = self.src.readline().strip(" \r\n")
 177                 while line != "# EOF":
 178
 179
 180                         if self.stopped():
 181                                 break
 182
 183                         if len(line) <= 0:
 184                                 continue
 185
 186
 187                         if line[0] == '#':
 188                                 last_line = line
 189                                 line = self.src.readline().strip(" \r\n")
 190                                 continue
 191
 192                         tokens = line.split(" ")
 193                         if tokens[0] == "white" or tokens[0] == "black":
 194                                 self.reset_board(line)
 195                                 last_line = line
 196                                 line = self.src.readline().strip(" \r\n")
 197                                 continue
 198
 199                         move = line.split(":")
 200                         move = move[len(move)-1].strip(" \r\n")
 201                         tokens = move.split(" ")
 202
 203
 204                         try:
 205                                 [x,y] = map(int, tokens[0:2])
 206                         except:
 207                                 last_line = line
 208                                 self.stop()
 209                                 break
 210
 211                         log(move)
 212
 213                         target = self.board.grid[x][y]
 214                         with self.lock:
 215                                 if target.colour == "white":
 216                                         self.state["turn"] = self.players[0]
 217                                 else:
 218                                         self.state["turn"] = self.players[1]
 219
 220                         move_piece = (tokens[2] == "->")
 221                         if move_piece:
 222                                 [x2,y2] = map(int, tokens[len(tokens)-2:])
 223
 224                         if isinstance(graphics, GraphicsThread):
 225                                 with graphics.lock:
 226                                         graphics.state["select"] = target
 227
 228                         if not move_piece:
 229                                 self.board.update_select(x, y, int(tokens[2]), tokens[len(tokens)-1])
 230                                 if isinstance(graphics, GraphicsThread):
 231                                         with graphics.lock:
 232                                                 if target.current_type != "unknown":
 233                                                         graphics.state["moves"] = self.board.possible_moves(target)
 234                                                 else:
 235                                                         graphics.state["moves"] = None
 236                                         time.sleep(turn_delay)
 237                         else:
 238                                 self.board.update_move(x, y, x2, y2)
 239                                 if isinstance(graphics, GraphicsThread):
 240                                         with graphics.lock:
 241                                                 graphics.state["moves"] = [[x2,y2]]
 242                                         time.sleep(turn_delay)
 243                                         with graphics.lock:
 244                                                 graphics.state["select"] = None
 245                                                 graphics.state["moves"] = None
 246                                                 graphics.state["dest"] = None
 247
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 249
 250
 251
 252                         for p in self.players:
 253                                 p.update(move)
 254
 255                         last_line = line
 256                         line = self.src.readline().strip(" \r\n")
 257
 258
 259                         end = self.board.end_condition()
 260                         if end != None:
 261                                 self.final_result = end
 262                                 self.stop()
 263                                 break
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 277
 278
 279                 if self.end and isinstance(graphics, GraphicsThread):
 280                         #graphics.stop()
 281                         pass # Let the user stop the display
 282                 elif not self.end and self.board.end_condition() == None:
 283                         global game
 284                         # Work out the last move
 285
 286                         t = last_line.split(" ")
 287                         if t[len(t)-2] == "black":
 288                                 self.players.reverse()
 289                         elif t[len(t)-2] == "white":
 290                                 pass
 291                         elif self.state["turn"] != None and self.state["turn"].colour == "white":
 292                                 self.players.reverse()
 293
 294
 295                         game = GameThread(self.board, self.players)
 296                         game.run()
 297                 else:
 298                         pass
 299
 300
 301
 302 def opponent(colour):
 303         if colour == "white":
 304                 return "black"
 305         else:
 306                 return "white"