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                                         if isinstance(log_file, HttpLog):
  75                                                 log_file.prelog()
  76
  77                                         self.board.update_move(x, y, x2, y2)
  78                                         result = str(x) + " " + str(y) + " -> " + str(x2) + " " + str(y2)
  79                                         for p2 in self.players:
  80                                                 p2.update(result) # Inform players of what happened
  81
  82                                         log(result)
  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                                 if self.board.king["black"] == None:
 106                                         if self.board.king["white"] == None:
 107                                                 with self.lock:
 108                                                         self.final_result = self.state["turn"].colour + " DRAW"
 109                                         else:
 110                                                 with self.lock:
 111                                                         self.final_result = "white"
 112                                         self.stop()
 113                                 elif self.board.king["white"] == None:
 114                                         with self.lock:
 115                                                 self.final_result = "black"
 116                                         self.stop()
 117
 118
 119                                 if self.stopped():
 120                                         break
 121
 122
 123                 for p2 in self.players:
 124                         p2.quit(self.final_result)
 125
 126                 log(self.final_result)
 127
 128                 if isinstance(graphics, GraphicsThread):
 129                         graphics.stop()
 130
 131
 132 # A thread that replays a log file
 133 class ReplayThread(GameThread):
 134         def __init__(self, players, src, end=False,max_lines=None):
 135                 self.board = Board(style="empty")
 136                 GameThread.__init__(self, self.board, players)
 137                 self.src = src
 138                 self.max_lines = max_lines
 139                 self.line_number = 0
 140                 self.end = end
 141
 142                 self.setup()
 143
 144         def setup(self):
 145                 sys.stderr.write("setup called for ReplayThread\n")
 146                 if True:
 147                         while self.src.readline().strip(" \r\n") != "# Initial board":
 148                                 self.line_number += 1
 149
 150                         line = self.src.readline().strip(" \r\n")
 151
 152                         while line != "# Start game":
 153                                 #print "Reading line " + str(line)
 154                                 self.line_number += 1
 155                                 [x,y] = map(int, line.split("at")[1].strip(" \r\n").split(","))
 156                                 colour = line.split(" ")[0]
 157                                 current_type = line.split(" ")[1]
 158                                 types = map(lambda e : e.strip(" [],'"), line.split(" ")[2:4])
 159                                 p = Piece(colour, x, y, types)
 160                                 if current_type != "unknown":
 161                                         p.current_type = current_type
 162                                         p.choice = types.index(current_type)
 163
 164                                 self.board.pieces[colour].append(p)
 165                                 self.board.grid[x][y] = p
 166                                 if current_type == "king":
 167                                         self.board.king[colour] = p
 168
 169                                 line = self.src.readline().strip(" \r\n")
 170
 171                 #except Exception, e:
 172                 #       raise Exception("FILE line: " + str(self.line_number) + " \""+str(line)+"\"") #\n" + e.message)
 173
 174         def run(self):
 175                 i = 0
 176                 phase = 0
 177                 count = 0
 178                 line = self.src.readline().strip(" \r\n")
 179                 while line != "# EOF":
 180                         sys.stderr.write(sys.argv[0] + " : " + str(self.__class__.__name__) + " read: " + str(line) + "\n")
 181                         count += 1
 182                         if self.max_lines != None and count > self.max_lines:
 183                                 self.stop()
 184
 185                         if self.stopped():
 186                                 break
 187
 188                         with self.lock:
 189                                 self.state["turn"] = self.players[i]
 190
 191                         line = line.split(":")
 192                         result = line[len(line)-1].strip(" \r\n")
 193
 194
 195                         try:
 196                                 self.board.update(result)
 197                         except Exception, e:
 198                                 sys.stderr.write("Exception! " + str(e.message) + "\n")
 199                                 self.final_result = result
 200                                 self.stop()
 201                                 break
 202
 203                         log(result)
 204
 205                         [x,y] = map(int, result.split(" ")[0:2])
 206                         target = self.board.grid[x][y]
 207
 208                         if isinstance(graphics, GraphicsThread):
 209                                 if phase == 0:
 210                                         with graphics.lock:
 211                                                 graphics.state["moves"] = self.board.possible_moves(target)
 212                                                 graphics.state["select"] = target
 213
 214                                         if self.end:
 215                                                 time.sleep(turn_delay)
 216
 217                                 elif phase == 1:
 218                                         [x2,y2] = map(int, result.split(" ")[3:5])
 219                                         with graphics.lock:
 220                                                 graphics.state["moves"] = [[x2,y2]]
 221
 222                                         if self.end:
 223                                                 time.sleep(turn_delay)
 224
 225                                         with graphics.lock:
 226                                                 graphics.state["select"] = None
 227                                                 graphics.state["dest"] = None
 228                                                 graphics.state["moves"] = None
 229
 230
 231
 232
 233
 234                         for p in self.players:
 235                                 p.update(result)
 236
 237                         phase = (phase + 1) % 2
 238                         if phase == 0:
 239                                 i = (i + 1) % 2
 240
 241                         line = self.src.readline().strip(" \r\n")
 242
 243                 sys.stderr.write(sys.argv[0] + " : " + str(self.__class__.__name__) + " finished...\n")
 244
 245                 if self.max_lines != None and self.max_lines > count:
 246                         sys.stderr.write(sys.argv[0] + " : Replaying from file; stopping at last line (" + str(count) + ")\n")
 247                         sys.stderr.write(sys.argv[0] + " : (You requested line " + str(self.max_lines) + ")\n")
 248
 249                 if self.end and isinstance(graphics, GraphicsThread):
 250                         #graphics.stop()
 251                         pass # Let the user stop the display
 252                 elif not self.end:
 253                         global game
 254                         game = GameThread(self.board, self.players)
 255                         game.run()
 256
 257
 258
 259
 260 def opponent(colour):
 261         if colour == "white":
 262                 return "black"
 263         else:
 264                 return "white"