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, Network) and p.baseplayer != None:
  28                                                 self.state["turn"] = p.baseplayer # "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                                         if isinstance(p, Network) == False or p.server == True:
  38                                                 result = self.board.select(x, y, colour = p.colour)
  39                                         else:
  40                                                 result = p.get_response()
  41                                                 self.board.update(result)
  42
  43                                         for p2 in self.players:
  44                                                 p2.update(result) # Inform players of what happened
  45
  46
  47                                         log(result)
  48
  49                                         target = self.board.grid[x][y]
  50                                         if isinstance(graphics, GraphicsThread):
  51                                                 with graphics.lock:
  52                                                         graphics.state["moves"] = self.board.possible_moves(target)
  53                                                         graphics.state["select"] = target
  54
  55                                         time.sleep(turn_delay)
  56
  57
  58                                         if len(self.board.possible_moves(target)) == 0:
  59                                                 #print "Piece cannot move"
  60                                                 target.deselect()
  61                                                 if isinstance(graphics, GraphicsThread):
  62                                                         with graphics.lock:
  63                                                                 graphics.state["moves"] = None
  64                                                                 graphics.state["select"] = None
  65                                                                 graphics.state["dest"] = None
  66                                                 continue
  67
  68                                         try:
  69                                                 [x2,y2] = p.get_move() # Player selects a destination
  70                                         except:
  71                                                 self.stop()
  72
  73                                         if self.stopped():
  74                                                 break
  75
  76                                         result = str(x) + " " + str(y) + " -> " + str(x2) + " " + str(y2)
  77                                         log(result)
  78
  79                                         self.board.update_move(x, y, x2, y2)
  80
  81                                         for p2 in self.players:
  82                                                 p2.update(result) # Inform players of what happened
  83
  84
  85
  86                                         if isinstance(graphics, GraphicsThread):
  87                                                 with graphics.lock:
  88                                                         graphics.state["moves"] = [[x2,y2]]
  89
  90                                         time.sleep(turn_delay)
  91
  92                                         if isinstance(graphics, GraphicsThread):
  93                                                 with graphics.lock:
  94                                                         graphics.state["select"] = None
  95                                                         graphics.state["dest"] = None
  96                                                         graphics.state["moves"] = None
  97
  98                         # Commented out exception stuff for now, because it makes it impossible to tell if I made an IndentationError somewhere
  99                         #       except Exception,e:
 100                         #               result = e.message
 101                         #               #sys.stderr.write(result + "\n")
 102                         #
 103                         #               self.stop()
 104                         #               with self.lock:
 105                         #                       self.final_result = self.state["turn"].colour + " " + e.message
 106
 107                                 end = self.board.end_condition()
 108                                 if end != None:
 109                                         with self.lock:
 110                                                 if end == "DRAW":
 111                                                         self.final_result = self.state["turn"].colour + " " + end
 112                                                 else:
 113                                                         self.final_result = end
 114                                         self.stop()
 115
 116                                 if self.stopped():
 117                                         break
 118
 119
 120                 for p2 in self.players:
 121                         p2.quit(self.final_result)
 122
 123                 log(self.final_result)
 124
 125                 if isinstance(graphics, GraphicsThread):
 126                         graphics.stop()
 127
 128
 129 # A thread that replays a log file
 130 class ReplayThread(GameThread):
 131         def __init__(self, players, src, end=False,max_moves=None):
 132                 self.board = Board(style="empty")
 133                 self.board.max_moves = max_moves
 134                 GameThread.__init__(self, self.board, players)
 135                 self.src = src
 136                 self.end = end
 137
 138                 self.reset_board(self.src.readline())
 139
 140         def reset_board(self, line):
 141                 agent_str = ""
 142                 self_str = ""
 143                 while line != "# Start game" and line != "# EOF":
 144
 145                         while line == "":
 146                                 line = self.src.readline().strip(" \r\n")
 147                                 continue
 148
 149                         if line[0] == '#':
 150                                 line = self.src.readline().strip(" \r\n")
 151                                 continue
 152
 153                         self_str += line + "\n"
 154
 155                         if self.players[0].name == "dummy" and self.players[1].name == "dummy":
 156                                 line = self.src.readline().strip(" \r\n")
 157                                 continue
 158
 159                         tokens = line.split(" ")
 160                         types = map(lambda e : e.strip("[] ,'"), tokens[2:4])
 161                         for i in range(len(types)):
 162                                 if types[i][0] == "?":
 163                                         types[i] = "unknown"
 164
 165                         agent_str += tokens[0] + " " + tokens[1] + " " + str(types) + " ".join(tokens[4:]) + "\n"
 166                         line = self.src.readline().strip(" \r\n")
 167
 168                 for p in self.players:
 169                         p.reset_board(agent_str)
 170
 171
 172                 self.board.reset_board(self_str)
 173
 174
 175         def run(self):
 176                 move_count = 0
 177                 last_line = ""
 178                 line = self.src.readline().strip(" \r\n")
 179                 while line != "# EOF":
 180
 181
 182                         if self.stopped():
 183                                 break
 184
 185                         if len(line) <= 0:
 186                                 continue
 187
 188
 189                         if line[0] == '#':
 190                                 last_line = line
 191                                 line = self.src.readline().strip(" \r\n")
 192                                 continue
 193
 194                         tokens = line.split(" ")
 195                         if tokens[0] == "white" or tokens[0] == "black":
 196                                 self.reset_board(line)
 197                                 last_line = line
 198                                 line = self.src.readline().strip(" \r\n")
 199                                 continue
 200
 201                         move = line.split(":")
 202                         move = move[len(move)-1].strip(" \r\n")
 203                         tokens = move.split(" ")
 204
 205
 206                         try:
 207                                 [x,y] = map(int, tokens[0:2])
 208                         except:
 209                                 last_line = line
 210                                 self.stop()
 211                                 break
 212
 213                         log(move)
 214
 215                         target = self.board.grid[x][y]
 216                         with self.lock:
 217                                 if target.colour == "white":
 218                                         self.state["turn"] = self.players[0]
 219                                 else:
 220                                         self.state["turn"] = self.players[1]
 221
 222                         move_piece = (tokens[2] == "->")
 223                         if move_piece:
 224                                 [x2,y2] = map(int, tokens[len(tokens)-2:])
 225
 226                         if isinstance(graphics, GraphicsThread):
 227                                 with graphics.lock:
 228                                         graphics.state["select"] = target
 229
 230                         if not move_piece:
 231                                 self.board.update_select(x, y, int(tokens[2]), tokens[len(tokens)-1])
 232                                 if isinstance(graphics, GraphicsThread):
 233                                         with graphics.lock:
 234                                                 if target.current_type != "unknown":
 235                                                         graphics.state["moves"] = self.board.possible_moves(target)
 236                                                 else:
 237                                                         graphics.state["moves"] = None
 238                                         time.sleep(turn_delay)
 239                         else:
 240                                 self.board.update_move(x, y, x2, y2)
 241                                 if isinstance(graphics, GraphicsThread):
 242                                         with graphics.lock:
 243                                                 graphics.state["moves"] = [[x2,y2]]
 244                                         time.sleep(turn_delay)
 245                                         with graphics.lock:
 246                                                 graphics.state["select"] = None
 247                                                 graphics.state["moves"] = None
 248                                                 graphics.state["dest"] = None
 249
 250
 251
 252
 253
 254                         for p in self.players:
 255                                 p.update(move)
 256
 257                         last_line = line
 258                         line = self.src.readline().strip(" \r\n")
 259
 260
 261                         end = self.board.end_condition()
 262                         if end != None:
 263                                 self.final_result = end
 264                                 self.stop()
 265                                 break
 266
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 279
 280
 281                 if self.end and isinstance(graphics, GraphicsThread):
 282                         #graphics.stop()
 283                         pass # Let the user stop the display
 284                 elif not self.end and self.board.end_condition() == None:
 285                         global game
 286                         # Work out the last move
 287
 288                         t = last_line.split(" ")
 289                         if t[len(t)-2] == "black":
 290                                 self.players.reverse()
 291                         elif t[len(t)-2] == "white":
 292                                 pass
 293                         elif self.state["turn"] != None and self.state["turn"].colour == "white":
 294                                 self.players.reverse()
 295
 296
 297                         game = GameThread(self.board, self.players)
 298                         game.run()
 299                 else:
 300                         pass
 301
 302
 303
 304 def opponent(colour):
 305         if colour == "white":
 306                 return "black"
 307         else:
 308                 return "white"