qchess/qchess.py

   1 #!/usr/bin/python -u
   2 import random
   3
   4 # I know using non-abreviated strings is inefficient, but this is python, who cares?
   5 # Oh, yeah, this stores the number of pieces of each type in a normal chess game
   6 piece_types = {"pawn" : 8, "bishop" : 2, "knight" : 2, "rook" : 2, "queen" : 1, "king" : 1, "unknown" : 0}
   7
   8 # Class to represent a quantum chess piece
   9 class Piece():
  10         def __init__(self, colour, x, y, types):
  11                 self.colour = colour # Colour (string) either "white" or "black"
  12                 self.x = x # x coordinate (0 - 8), none of this fancy 'a', 'b' shit here
  13                 self.y = y # y coordinate (0 - 8)
  14                 self.types = types # List of possible types the piece can be (should just be two)
  15                 self.current_type = "unknown" # Current type
  16                 self.choice = -1 # Index of the current type in self.types (-1 = unknown type)
  17
  18
  19                 self.last_state = None
  20
  21                 self.move_pattern = None
  22                 self.coverage = None
  23                 self.possible_moves = {}
  24
  25
  26         def init_from_copy(self, c):
  27                 self.colour = c.colour
  28                 self.x = c.x
  29                 self.y = c.y
  30                 self.types = c.types[:]
  31                 self.current_type = c.current_type
  32                 self.choice = c.choice
  33
  34                 self.last_state = None
  35                 self.move_pattern = None
  36
  37
  38
  39         # Make a string for the piece (used for debug)
  40         def __str__(self):
  41                 return str(self.colour) + " " + str(self.current_type) + " " + str(self.types) + " at " + str(self.x) + ","+str(self.y)
  42
  43         # Draw the piece in a pygame surface
  44         def draw(self, window, grid_sz = [80,80], style="quantum"):
  45
  46                 # First draw the image corresponding to self.current_type
  47                 img = images[self.colour][self.current_type]
  48                 rect = img.get_rect()
  49                 if style == "classical":
  50                         offset = [-rect.width/2, -rect.height/2]
  51                 else:
  52                         offset = [-rect.width/2,-3*rect.height/4]
  53                 window.blit(img, (self.x * grid_sz[0] + grid_sz[0]/2 + offset[0], self.y * grid_sz[1] + grid_sz[1]/2 + offset[1]))
  54
  55
  56                 if style == "classical":
  57                         return
  58
  59                 # Draw the two possible types underneath the current_type image
  60                 for i in range(len(self.types)):
  61                         if always_reveal_states == True or self.types[i][0] != '?':
  62                                 if self.types[i][0] == '?':
  63                                         img = small_images[self.colour][self.types[i][1:]]
  64                                 else:
  65                                         img = small_images[self.colour][self.types[i]]
  66                         else:
  67                                 img = small_images[self.colour]["unknown"] # If the type hasn't been revealed, show a placeholder
  68
  69
  70                         rect = img.get_rect()
  71                         offset = [-rect.width/2,-rect.height/2]
  72
  73                         if i == 0:
  74                                 target = (self.x * grid_sz[0] + grid_sz[0]/5 + offset[0], self.y * grid_sz[1] + 3*grid_sz[1]/4 + offset[1])
  75                         else:
  76                                 target = (self.x * grid_sz[0] + 4*grid_sz[0]/5 + offset[0], self.y * grid_sz[1] + 3*grid_sz[1]/4 + offset[1])
  77
  78                         window.blit(img, target) # Blit shit
  79
  80         # Collapses the wave function!
  81         def select(self):
  82                 if self.current_type == "unknown" or not self.choice in [0,1]:
  83                         self.choice = random.randint(0,1)
  84                         if self.types[self.choice][0] == '?':
  85                                 self.types[self.choice] = self.types[self.choice][1:]
  86                         self.current_type = self.types[self.choice]
  87                 return self.choice
  88
  89         # Uncollapses (?) the wave function!
  90         def deselect(self):
  91                 #print "Deselect called"
  92                 if (self.x + self.y) % 2 != 0:
  93                         if (self.types[0] != self.types[1]) or (self.types[0][0] == '?' or self.types[1][0] == '?'):
  94                                 self.current_type = "unknown"
  95                                 self.choice = -1
  96                         else:
  97                                 self.choice = 0 # Both the two types are the same
  98
  99         # The sad moment when you realise that you do not understand anything about a subject you studied for 4 years...
 100 # --- piece.py --- #
 101 [w,h] = [8,8] # Width and height of board(s)
 102
 103 always_reveal_states = False
 104
 105 # Class to represent a quantum chess board
 106 class Board():
 107         # Initialise; if master=True then the secondary piece types are assigned
 108         #       Otherwise, they are left as unknown
 109         #       So you can use this class in Agent programs, and fill in the types as they are revealed
 110         def __init__(self, style="agent"):
 111                 self.style = style
 112                 self.pieces = {"white" : [], "black" : []}
 113                 self.grid = [[None] * w for _ in range(h)] # 2D List (you can get arrays in python, somehow, but they scare me)
 114                 self.unrevealed_types = {"white" : piece_types.copy(), "black" : piece_types.copy()}
 115                 self.king = {"white" : None, "black" : None} # We need to keep track of the king, because he is important
 116                 self.max_moves = None
 117                 self.moves = 0
 118                 self.move_stack = []
 119                 for c in ["black", "white"]:
 120                         del self.unrevealed_types[c]["unknown"]
 121
 122                 if style == "empty":
 123                         return
 124
 125                 # Add all the pieces with known primary types
 126                 for i in range(0, 2):
 127
 128                         s = ["black", "white"][i]
 129                         c = self.pieces[s]
 130                         y = [0, h-1][i]
 131
 132                         c.append(Piece(s, 0, y, ["rook"]))
 133                         c.append(Piece(s, 1, y, ["knight"]))
 134                         c.append(Piece(s, 2, y, ["bishop"]))
 135                         k = Piece(s, 3, y, ["king", "king"]) # There can only be one ruler!
 136                         k.current_type = "king"
 137                         self.king[s] = k
 138                         c.append(k)
 139                         c.append(Piece(s, 4, y, ["queen"])) # Apparently he may have multiple wives though.
 140                         c.append(Piece(s, 5, y, ["bishop"]))
 141                         c.append(Piece(s, 6, y, ["knight"]))
 142                         c.append(Piece(s, 7, y, ["rook"]))
 143
 144                         if y == 0:
 145                                 y += 1
 146                         else:
 147                                 y -= 1
 148
 149                         # Lots of pawn
 150                         for x in range(0, w):
 151                                 c.append(Piece(s, x, y, ["pawn"]))
 152
 153                         types_left = {}
 154                         types_left.update(piece_types)
 155                         del types_left["king"] # We don't want one of these randomly appearing (although it might make things interesting...)
 156                         del types_left["unknown"] # We certainly don't want these!
 157                         for piece in c:
 158                                 # Add to grid
 159                                 self.grid[piece.x][piece.y] = piece
 160
 161                                 if len(piece.types) > 1:
 162                                         continue
 163                                 if style == "agent": # Assign placeholder "unknown" secondary type
 164                                         piece.types.append("unknown")
 165                                         continue
 166
 167                                 elif style == "quantum":
 168                                         # The master allocates the secondary types
 169                                         choice = types_left.keys()[random.randint(0, len(types_left.keys())-1)]
 170                                         types_left[choice] -= 1
 171                                         if types_left[choice] <= 0:
 172                                                 del types_left[choice]
 173                                         piece.types.append('?' + choice)
 174                                 elif style == "classical":
 175                                         piece.types.append(piece.types[0])
 176                                         piece.current_type = piece.types[0]
 177                                         piece.choice = 0
 178
 179         def clone(self):
 180                 newboard = Board(master = False)
 181                 newpieces = newboard.pieces["white"] + newboard.pieces["black"]
 182                 mypieces = self.pieces["white"] + self.pieces["black"]
 183
 184                 for i in range(len(mypieces)):
 185                         newpieces[i].init_from_copy(mypieces[i])
 186
 187         # Reset the board from a string
 188         def reset_board(self, s):
 189                 self.pieces = {"white" : [], "black" : []}
 190                 self.king = {"white" : None, "black" : None}
 191                 self.grid = [[None] * w for _ in range(h)]
 192                 for x in range(w):
 193                         for y in range(h):
 194                                 self.grid[x][y] = None
 195
 196                 for line in s.split("\n"):
 197                         if line == "":
 198                                 continue
 199                         if line[0] == "#":
 200                                 continue
 201
 202                         tokens = line.split(" ")
 203                         [x, y] = map(int, tokens[len(tokens)-1].split(","))
 204                         current_type = tokens[1]
 205                         types = map(lambda e : e.strip(" '[],"), line.split('[')[1].split(']')[0].split(','))
 206
 207                         target = Piece(tokens[0], x, y, types)
 208                         target.current_type = current_type
 209
 210                         try:
 211                                 target.choice = types.index(current_type)
 212                         except:
 213                                 target.choice = -1
 214
 215                         self.pieces[tokens[0]].append(target)
 216                         if target.current_type == "king":
 217                                 self.king[tokens[0]] = target
 218
 219                         self.grid[x][y] = target
 220
 221
 222         def display_grid(self, window = None, grid_sz = [80,80]):
 223                 if window == None:
 224                         return # I was considering implementing a text only display, then I thought "Fuck that"
 225
 226                 # The indentation is getting seriously out of hand...
 227                 for x in range(0, w):
 228                         for y in range(0, h):
 229                                 if (x + y) % 2 == 0:
 230                                         c = pygame.Color(200,200,200)
 231                                 else:
 232                                         c = pygame.Color(64,64,64)
 233                                 pygame.draw.rect(window, c, (x*grid_sz[0], y*grid_sz[1], (x+1)*grid_sz[0], (y+1)*grid_sz[1]))
 234
 235         def display_pieces(self, window = None, grid_sz = [80,80]):
 236                 if window == None:
 237                         return
 238                 for p in self.pieces["white"] + self.pieces["black"]:
 239                         p.draw(window, grid_sz, self.style)
 240
 241         # Draw the board in a pygame window
 242         def display(self, window = None):
 243                 self.display_grid(window)
 244                 self.display_pieces(window)
 245
 246
 247
 248
 249         def verify(self):
 250                 for x in range(w):
 251                         for y in range(h):
 252                                 if self.grid[x][y] == None:
 253                                         continue
 254                                 if (self.grid[x][y].x != x or self.grid[x][y].y != y):
 255                                         raise Exception(sys.argv[0] + ": MISMATCH " + str(self.grid[x][y]) + " should be at " + str(x) + "," + str(y))
 256
 257         # Select a piece on the board (colour is the colour of whoever is doing the selecting)
 258         def select(self, x,y, colour=None):
 259                 if not self.on_board(x, y): # Get on board everyone!
 260                         raise Exception("BOUNDS " + str(x) + ","+str(y))
 261
 262                 piece = self.grid[x][y]
 263                 if piece == None:
 264                         raise Exception("EMPTY")
 265
 266                 if colour != None and piece.colour != colour:
 267                         raise Exception("COLOUR " + str(piece.colour) + " not " + str(colour))
 268
 269                 # I'm not quite sure why I made this return a string, but screw logical design
 270                 return str(x) + " " + str(y) + " " + str(piece.select()) + " " + str(piece.current_type)
 271
 272
 273         # Update the board when a piece has been selected
 274         # "type" is apparently reserved, so I'll use "state"
 275         def update_select(self, x, y, type_index, state, sanity=True, deselect=True):
 276                 #debug(str(self) + " update_select called")
 277                 piece = self.grid[x][y]
 278                 if piece.types[type_index] == "unknown":
 279                         if not state in self.unrevealed_types[piece.colour].keys() and sanity == True:
 280                                 raise Exception("SANITY: Too many " + piece.colour + " " + state + "s")
 281                         self.unrevealed_types[piece.colour][state] -= 1
 282                         if self.unrevealed_types[piece.colour][state] <= 0:
 283                                 del self.unrevealed_types[piece.colour][state]
 284
 285                 piece.types[type_index] = state
 286                 piece.current_type = state
 287
 288                 if deselect == True and len(self.possible_moves(piece)) <= 0:
 289                         piece.deselect() # Piece can't move; deselect it
 290
 291                 # Piece needs to recalculate moves
 292                 piece.possible_moves = None
 293
 294         # Update the board when a piece has been moved
 295         def update_move(self, x, y, x2, y2, sanity=True):
 296                 #debug(str(self) + " update_move called \""+str(x)+ " " + str(y) + " -> " + str(x2) + " " + str(y2) + "\"")
 297                 piece = self.grid[x][y]
 298                 #print "Moving " + str(x) + "," + str(y) + " to " + str(x2) + "," + str(y2) + "; possible_moves are " + str(self.possible_moves(piece))
 299
 300                 if not [x2,y2] in self.possible_moves(piece) and sanity == True:
 301                         raise Exception("ILLEGAL move " + str(x2)+","+str(y2))
 302
 303                 self.grid[x][y] = None
 304                 taken = self.grid[x2][y2]
 305                 if taken != None:
 306                         if taken.current_type == "king":
 307                                 self.king[taken.colour] = None
 308                         self.pieces[taken.colour].remove(taken)
 309                 self.grid[x2][y2] = piece
 310                 piece.x = x2
 311                 piece.y = y2
 312
 313                 # If the piece is a pawn, and it reaches the final row, it becomes a queen
 314                 # I know you are supposed to get a choice
 315                 # But that would be effort
 316                 if piece.current_type == "pawn" and ((piece.colour == "white" and piece.y == 0) or (piece.colour == "black" and piece.y == h-1)):
 317                         if self.style == "classical":
 318                                 piece.types[0] = "queen"
 319                                 piece.types[1] = "queen"
 320                         else:
 321                                 piece.types[piece.choice] = "queen"
 322                         piece.current_type = "queen"
 323
 324                 piece.deselect() # Uncollapse (?) the wavefunction!
 325                 self.moves += 1
 326
 327                 # All other pieces need to recalculate moves
 328                 for p in self.pieces["white"] + self.pieces["black"]:
 329                         p.possible_moves = None
 330
 331                 #self.verify()
 332
 333         # Update the board from a string
 334         # Guesses what to do based on the format of the string
 335         def update(self, result, sanity=True, deselect=True):
 336                 #debug(str(self) + " update called \""+str(result)+"\"")
 337                 # String always starts with 'x y'
 338                 try:
 339                         s = result.split(" ")
 340                         [x,y] = map(int, s[0:2])
 341                 except:
 342                         raise Exception("GIBBERISH \""+ str(result) + "\"") # Raise expectations
 343
 344                 piece = self.grid[x][y]
 345                 if piece == None and sanity == True:
 346                         raise Exception("EMPTY " + str(x) + " " + str(y))
 347
 348                 # If a piece is being moved, the third token is '->'
 349                 # We could get away with just using four integers, but that wouldn't look as cool
 350                 if "->" in s:
 351                         # Last two tokens are the destination
 352                         try:
 353                                 [x2,y2] = map(int, s[3:])
 354                         except:
 355                                 raise Exception("GIBBERISH \"" + str(result) + "\"") # Raise the alarm
 356
 357                         # Move the piece (take opponent if possible)
 358                         self.update_move(x, y, x2, y2, sanity)
 359
 360                 else:
 361                         # Otherwise we will just assume a piece has been selected
 362                         try:
 363                                 type_index = int(s[2]) # We need to know which of the two types the piece is in; that's the third token
 364                                 state = s[3] # The last token is a string identifying the type
 365                         except:
 366                                 raise Exception("GIBBERISH \"" + result + "\"") # Throw a hissy fit
 367
 368
 369                         # Select the piece
 370                         self.update_select(x, y, type_index, state, sanity=sanity, deselect=deselect)
 371
 372                 return result
 373
 374         # Gets each piece that could reach the given square and the probability that it could reach that square
 375         # Will include allied pieces that defend the attacker
 376         def coverage(self, x, y, colour = None, reject_allied = True):
 377                 result = {}
 378
 379                 if colour == None:
 380                         pieces = self.pieces["white"] + self.pieces["black"]
 381                 else:
 382                         pieces = self.pieces[colour]
 383
 384                 for p in pieces:
 385                         prob = self.probability_grid(p, reject_allied)[x][y]
 386                         if prob > 0:
 387                                 result.update({p : prob})
 388
 389                 #self.verify()
 390                 return result
 391
 392
 393
 394
 395
 396         # Associates each square with a probability that the piece could move into it
 397         # Look, I'm doing all the hard work for you here...
 398         def probability_grid(self, p, reject_allied = True):
 399
 400                 result = [[0.0] * w for _ in range(h)]
 401                 if not isinstance(p, Piece):
 402                         return result
 403
 404                 if p.current_type != "unknown":
 405                         #sys.stderr.write(sys.argv[0] + ": " + str(p) + " moves " + str(self.possible_moves(p, reject_allied)) + "\n")
 406                         for point in self.possible_moves(p, reject_allied):
 407                                 result[point[0]][point[1]] = 1.0
 408                         return result
 409
 410
 411                 for i in range(len(p.types)):
 412                         t = p.types[i]
 413                         prob = 1.0 / float(len(p.types))
 414                         if t == "unknown" or p.types[i][0] == '?':
 415                                 total_types = 0
 416                                 for t2 in self.unrevealed_types[p.colour].keys():
 417                                         total_types += self.unrevealed_types[p.colour][t2]
 418
 419                                 for t2 in self.unrevealed_types[p.colour].keys():
 420                                         prob2 = float(self.unrevealed_types[p.colour][t2]) / float(total_types)
 421                                         #p.current_type = t2
 422                                         for point in self.possible_moves(p, reject_allied, state=t2):
 423                                                 result[point[0]][point[1]] += prob2 * prob
 424
 425                         else:
 426                                 #p.current_type = t
 427                                 for point in self.possible_moves(p, reject_allied, state=t):
 428                                                 result[point[0]][point[1]] += prob
 429
 430                 #self.verify()
 431                 #p.current_type = "unknown"
 432                 return result
 433
 434         def prob_is_type(self, p, state):
 435                 if p.current_type != 0:
 436                         if state == p.current_type:
 437                                 return 1.0
 438                         else:
 439                                 return 0.0
 440
 441                 prob = 0.5
 442                 result = 0
 443                 for i in range(len(p.types)):
 444                         t = p.types[i]
 445                         if t == state:
 446                                 result += prob
 447                                 continue
 448                         if t == "unknown" or p.types[i][0] == '?':
 449                                 total_prob = 0
 450                                 for t2 in self.unrevealed_types[p.colour].keys():
 451                                         total_prob += self.unrevealed_types[p.colour][t2]
 452                                 for t2 in self.unrevealed_types[p.colour].keys():
 453                                         if t2 == state:
 454                                                 result += prob * float(self.unrevealed_types[p.colour][t2]) / float(total_prob)
 455
 456
 457
 458         # Get all squares that the piece could move into
 459         # This is probably inefficient, but I looked at some sample chess games and they seem to actually do things this way
 460         # reject_allied indicates whether squares occupied by allied pieces will be removed
 461         # (set to false to check for defense)
 462         def possible_moves(self, p, reject_allied = True, state=None):
 463                 if p == None:
 464                         raise Exception("SANITY: No piece")
 465
 466
 467
 468                 if state != None and state != p.current_type:
 469                         old_type = p.current_type
 470                         p.current_type = state
 471                         result = self.possible_moves(p, reject_allied, state=None)
 472                         p.current_type = old_type
 473                         return result
 474
 475
 476
 477
 478                 result = []
 479
 480
 481
 482                 if p.current_type == "unknown":
 483                         raise Exception("SANITY: Unknown state for piece: "+str(p))
 484                         # The below commented out code causes things to break badly
 485                         #for t in p.types:
 486                         #       if t == "unknown":
 487                         #               continue
 488                         #       p.current_type = t
 489                         #       result += self.possible_moves(p)
 490                         #p.current_type = "unknown"
 491                         #return result
 492
 493                 if p.current_type == "king":
 494                         result = [[p.x-1,p.y],[p.x+1,p.y],[p.x,p.y-1],[p.x,p.y+1], [p.x-1,p.y-1],[p.x-1,p.y+1],[p.x+1,p.y-1],[p.x+1,p.y+1]]
 495                 elif p.current_type == "queen":
 496                         for d in [[-1,0],[1,0],[0,-1],[0,1],[-1,-1],[-1,1],[1,-1],[1,1]]:
 497                                 result += self.scan(p.x, p.y, d[0], d[1])
 498                 elif p.current_type == "bishop":
 499                         for d in [[-1,-1],[-1,1],[1,-1],[1,1]]: # There's a reason why bishops move diagonally
 500                                 result += self.scan(p.x, p.y, d[0], d[1])
 501                 elif p.current_type == "rook":
 502                         for d in [[-1,0],[1,0],[0,-1],[0,1]]:
 503                                 result += self.scan(p.x, p.y, d[0], d[1])
 504                 elif p.current_type == "knight":
 505                         # I would use two lines, but I'm not sure how python likes that
 506                         result = [[p.x-2, p.y-1], [p.x-2, p.y+1], [p.x+2, p.y-1], [p.x+2,p.y+1], [p.x-1,p.y-2], [p.x-1, p.y+2],[p.x+1,p.y-2],[p.x+1,p.y+2]]
 507                 elif p.current_type == "pawn":
 508                         if p.colour == "white":
 509
 510                                 # Pawn can't move forward into occupied square
 511                                 if self.on_board(p.x, p.y-1) and self.grid[p.x][p.y-1] == None:
 512                                         result = [[p.x,p.y-1]]
 513                                 for f in [[p.x-1,p.y-1],[p.x+1,p.y-1]]:
 514                                         if not self.on_board(f[0], f[1]):
 515                                                 continue
 516                                         if self.grid[f[0]][f[1]] != None:  # Pawn can take diagonally
 517                                                 result.append(f)
 518                                 if p.y == h-2:
 519                                         # Slightly embarrassing if the pawn jumps over someone on its first move...
 520                                         if self.grid[p.x][p.y-1] == None and self.grid[p.x][p.y-2] == None:
 521                                                 result.append([p.x, p.y-2])
 522                         else:
 523                                 # Vice versa for the black pawn
 524                                 if self.on_board(p.x, p.y+1) and self.grid[p.x][p.y+1] == None:
 525                                         result = [[p.x,p.y+1]]
 526
 527                                 for f in [[p.x-1,p.y+1],[p.x+1,p.y+1]]:
 528                                         if not self.on_board(f[0], f[1]):
 529                                                 continue
 530                                         if self.grid[f[0]][f[1]] != None:
 531                                                 #sys.stderr.write(sys.argv[0] + " : "+str(p) + " can take " + str(self.grid[f[0]][f[1]]) + "\n")
 532                                                 result.append(f)
 533                                 if p.y == 1:
 534                                         if self.grid[p.x][p.y+1] == None and self.grid[p.x][p.y+2] == None:
 535                                                 result.append([p.x, p.y+2])
 536
 537                         #sys.stderr.write(sys.argv[0] + " : possible_moves for " + str(p) + " " + str(result) + "\n")
 538
 539                 # Remove illegal moves
 540                 # Note: The result[:] creates a copy of result, so that the result.remove calls don't fuck things up
 541                 for point in result[:]:
 542
 543                         if (point[0] < 0 or point[0] >= w) or (point[1] < 0 or point[1] >= h):
 544                                 result.remove(point) # Remove locations outside the board
 545                                 continue
 546                         g = self.grid[point[0]][point[1]]
 547
 548                         if g != None and (g.colour == p.colour and reject_allied == True):
 549                                 result.remove(point) # Remove allied pieces
 550
 551                 #self.verify()
 552
 553                 p.possible_moves = result
 554                 return result
 555
 556
 557         # Scans in a direction until it hits a piece, returns all squares in the line
 558         # (includes the final square (which contains a piece), but not the original square)
 559         def scan(self, x, y, vx, vy):
 560                 p = []
 561
 562                 xx = x
 563                 yy = y
 564                 while True:
 565                         xx += vx
 566                         yy += vy
 567                         if not self.on_board(xx, yy):
 568                                 break
 569                         if not [xx,yy] in p:
 570                                 p.append([xx, yy])
 571                         g = self.grid[xx][yy]
 572                         if g != None:
 573                                 return p
 574
 575                 return p
 576
 577         # Returns "white", "black" or "DRAW" if the game should end
 578         def end_condition(self):
 579                 if self.king["white"] == None:
 580                         if self.king["black"] == None:
 581                                 return "DRAW" # This shouldn't happen
 582                         return "black"
 583                 elif self.king["black"] == None:
 584                         return "white"
 585                 elif len(self.pieces["white"]) == 1 and len(self.pieces["black"]) == 1:
 586                         return "DRAW"
 587                 elif self.max_moves != None and self.moves > self.max_moves:
 588                         return "DRAW"
 589                 return None
 590
 591
 592         # I typed the full statement about 30 times before writing this function...
 593         def on_board(self, x, y):
 594                 return (x >= 0 and x < w) and (y >= 0 and y < h)
 595
 596
 597
 598         # Pushes a move temporarily
 599         def push_move(self, piece, x, y):
 600                 target = self.grid[x][y]
 601                 self.move_stack.append([piece, target, piece.x, piece.y, x, y])
 602                 [piece.x, piece.y] = [x, y]
 603                 self.grid[x][y] = piece
 604                 self.grid[piece.x][piece.y] = None
 605
 606                 for p in self.pieces["white"] + self.pieces["black"]:
 607                         p.possible_moves = None
 608
 609         # Restore move
 610         def pop_move(self):
 611                 #print str(self.move_stack)
 612                 [piece, target, x1, y1, x2, y2] = self.move_stack[len(self.move_stack)-1]
 613                 self.move_stack = self.move_stack[:-1]
 614                 piece.x = x1
 615                 piece.y = y1
 616                 self.grid[x1][y1] = piece
 617                 if target != None:
 618                         target.x = x2
 619                         target.y = y2
 620                 self.grid[x2][y2] = target
 621
 622                 for p in self.pieces["white"] + self.pieces["black"]:
 623                         p.possible_moves = None
 624
 625 # --- board.py --- #
 626 import subprocess
 627 import select
 628 import platform
 629 import re
 630
 631 agent_timeout = -1.0 # Timeout in seconds for AI players to make moves
 632                         # WARNING: Won't work for windows based operating systems
 633
 634 if platform.system() == "Windows":
 635         agent_timeout = -1 # Hence this
 636
 637 # A player who can't play
 638 class Player():
 639         def __init__(self, name, colour):
 640                 self.name = name
 641                 self.colour = colour
 642
 643         def update(self, result):
 644                 return result
 645
 646         def reset_board(self, s):
 647                 pass
 648
 649         def __str__(self):
 650                 return self.name + "<"+str(self.colour)+">"
 651
 652         def base_player(self):
 653                 return self
 654
 655
 656
 657
 658
 659 def open_fifo(name, mode, timeout=None):
 660         if timeout == None:
 661                 return open(name, mode)
 662
 663
 664         class Worker(threading.Thread):
 665                 def __init__(self):
 666                         threading.Thread.__init__(self)
 667                         self.result = None
 668                         self.exception = None
 669
 670
 671                 def run(self):
 672                         try:
 673                                 self.result = open(name, mode)
 674                         except Exception, e:
 675                                 self.exception = e
 676                                 self.result = None
 677
 678
 679         w = Worker()
 680         w.start()
 681
 682         start = time.time()
 683         while time.time() - start < timeout:
 684                 if w.is_alive() == False:
 685                         w.join()
 686                         if w.exception != None:
 687                                 raise w.exception
 688                         return w.result
 689                 time.sleep(0.1)
 690
 691
 692         if w.is_alive():
 693                 #sys.stderr.write("FIFO_TIMEOUT!\n")
 694                 # Recursive to deal with possible race condition
 695                 try:
 696                         if mode == "r":
 697                                 f = open_fifo(name, "w", 1)
 698                         else:
 699                                 f = open_fifo(name, "r", 1)
 700                 except:
 701                         pass
 702
 703                 #sys.stderr.write("Opened other end!\n")
 704                 while w.is_alive():
 705                         time.sleep(0.1)
 706
 707                 w.join()
 708                 f.close()
 709                 w.result.close()
 710                 raise Exception("FIFO_TIMEOUT")
 711         else:
 712                 w.join()
 713                 if w.exception != None:
 714                         raise w.exception
 715                 return w.result
 716
 717
 718 # Player that runs through a fifo
 719 class FifoPlayer(Player):
 720
 721         timeout = 300
 722
 723         def __init__(self, name, colour):
 724                 Player.__init__(self, name, colour)
 725                 os.mkfifo(self.name+".in")
 726                 os.mkfifo(self.name+".out")
 727
 728
 729                 try:
 730                         self.fifo_out = open_fifo(self.name+".out","w", FifoPlayer.timeout)
 731                 except:
 732                         raise Exception("FIFO_TIMEOUT")
 733                 else:
 734                         self.fifo_out.write("START "+colour+"\n")
 735                         self.fifo_out.close()
 736
 737
 738         def update(self, result):
 739                 sys.stderr.write("update fifo called\n")
 740                 try:
 741                         self.fifo_out = open_fifo(self.name+".out", "w", FifoPlayer.timeout)
 742                 except:
 743                         raise Exception("FIFO_TIMEOUT")
 744                 else:
 745                         self.fifo_out.write(result +"\n")
 746                         self.fifo_out.close()
 747                         return result
 748
 749         def select(self):
 750                 sys.stderr.write("select fifo called\n")
 751                 try:
 752                         self.fifo_out = open_fifo(self.name+".out", "w", FifoPlayer.timeout)
 753                 except:
 754                         #sys.stderr.write("TIMEOUT\n")
 755                         raise Exception("FIFO_TIMEOUT")
 756                 else:
 757
 758                         self.fifo_out.write("SELECT?\n")
 759                         self.fifo_out.close()
 760                         self.fifo_in = open_fifo(self.name+".in", "r", FifoPlayer.timeout)
 761                         s = map(int, self.fifo_in.readline().strip(" \r\n").split(" "))
 762                         self.fifo_in.close()
 763                         return s
 764
 765         def get_move(self):
 766                 sys.stderr.write("get_move fifo called\n")
 767                 try:
 768                         self.fifo_out = open_fifo(self.name+".out", "w", FifoPlayer.timeout)
 769                 except:
 770                         raise Exception("FIFO_TIMEOUT")
 771                 else:
 772                         self.fifo_out.write("MOVE?\n")
 773                         self.fifo_out.close()
 774                         self.fifo_in = open_fifo(self.name+".in", "r", FifoPlayer.timeout)
 775                         s = map(int, self.fifo_in.readline().strip(" \r\n").split(" "))
 776                         self.fifo_in.close()
 777                         return s
 778
 779         def quit(self, result):
 780                 try:
 781                         self.fifo_out = open_fifo(self.name+".out", "w", FifoPlayer.timeout)
 782                 except:
 783                         pass
 784                 else:
 785                         self.fifo_out.write(result + "\n")
 786                         self.fifo_out.close()
 787
 788                 try:
 789                         os.remove(self.name+".in")
 790                         os.remove(self.name+".out")
 791                 except OSError:
 792                         pass
 793
 794 # Player that runs from another process
 795 class ExternalAgent(Player):
 796
 797
 798         def __init__(self, name, colour):
 799                 Player.__init__(self, name, colour)
 800                 #raise Exception("waht")
 801                 self.p = subprocess.Popen(name,bufsize=0,stdin=subprocess.PIPE, stdout=subprocess.PIPE, shell=True,universal_newlines=True)
 802
 803                 self.send_message(colour)
 804
 805         def send_message(self, s):
 806                 if agent_timeout > 0.0:
 807                         ready = select.select([], [self.p.stdin], [], agent_timeout)[1]
 808                 else:
 809                         ready = [self.p.stdin]
 810                 if self.p.stdin in ready:
 811                         #sys.stderr.write("Writing \'" + s + "\' to " + str(self.p) + "\n")
 812                         try:
 813                                 self.p.stdin.write(s + "\n")
 814                         except:
 815                                 raise Exception("UNRESPONSIVE")
 816                 else:
 817                         raise Exception("TIMEOUT")
 818
 819         def get_response(self):
 820                 if agent_timeout > 0.0:
 821                         ready = select.select([self.p.stdout], [], [], agent_timeout)[0]
 822                 else:
 823                         ready = [self.p.stdout]
 824                 if self.p.stdout in ready:
 825                         #sys.stderr.write("Reading from " + str(self.p) + " 's stdout...\n")
 826                         try:
 827                                 result = self.p.stdout.readline().strip(" \t\r\n")
 828                                 #sys.stderr.write("Read \'" + result + "\' from " + str(self.p) + "\n")
 829                                 return result
 830                         except: # Exception, e:
 831                                 raise Exception("UNRESPONSIVE")
 832                 else:
 833                         raise Exception("TIMEOUT")
 834
 835         def select(self):
 836
 837                 self.send_message("SELECTION?")
 838                 line = self.get_response()
 839
 840                 try:
 841                         m = re.match("\s*(\d+)\s+(\d+)\s*", line)
 842                         result = map(int, [m.group(1), m.group(2)])
 843                 except:
 844                         raise Exception("GIBBERISH \"" + str(line) + "\"")
 845                 return result
 846
 847         def update(self, result):
 848                 #print "Update " + str(result) + " called for AgentPlayer"
 849                 self.send_message(result)
 850                 return result
 851
 852         def get_move(self):
 853
 854                 self.send_message("MOVE?")
 855                 line = self.get_response()
 856
 857                 try:
 858                         m = re.match("\s*(\d+)\s+(\d+)\s*", line)
 859                         result = map(int, [m.group(1), m.group(2)])
 860
 861                 except:
 862                         raise Exception("GIBBERISH \"" + str(line) + "\"")
 863                 return result
 864
 865         def reset_board(self, s):
 866                 self.send_message("BOARD")
 867                 for line in s.split("\n"):
 868                         self.send_message(line.strip(" \r\n"))
 869                 self.send_message("END BOARD")
 870
 871         def quit(self, final_result):
 872                 try:
 873                         self.send_message("QUIT " + final_result)
 874                 except:
 875                         self.p.kill()
 876
 877 # So you want to be a player here?
 878 class HumanPlayer(Player):
 879         def __init__(self, name, colour):
 880                 Player.__init__(self, name, colour)
 881
 882
 883         # Select your preferred account
 884         def select(self):
 885                 if isinstance(graphics, GraphicsThread):
 886                         # Basically, we let the graphics thread do some shit and then return that information to the game thread
 887                         graphics.cond.acquire()
 888                         # We wait for the graphics thread to select a piece
 889                         while graphics.stopped() == False and graphics.state["select"] == None:
 890                                 graphics.cond.wait() # The difference between humans and machines is that humans sleep
 891                         select = graphics.state["select"]
 892
 893
 894                         graphics.cond.release()
 895                         if graphics.stopped():
 896                                 return [-1,-1]
 897                         return [select.x, select.y]
 898                 else:
 899                         # Since I don't display the board in this case, I'm not sure why I filled it in...
 900                         while True:
 901                                 sys.stdout.write("SELECTION?\n")
 902                                 try:
 903                                         p = map(int, sys.stdin.readline().strip("\r\n ").split(" "))
 904                                         return p
 905                                 except:
 906                                         sys.stderr.write("ILLEGAL GIBBERISH\n")
 907                                         continue
 908
 909         # It's your move captain
 910         def get_move(self):
 911                 if isinstance(graphics, GraphicsThread):
 912                         graphics.cond.acquire()
 913                         while graphics.stopped() == False and graphics.state["dest"] == None:
 914                                 graphics.cond.wait()
 915                         graphics.cond.release()
 916
 917                         return graphics.state["dest"]
 918                 else:
 919
 920                         while True:
 921                                 sys.stdout.write("MOVE?\n")
 922                                 try:
 923                                         p = map(int, sys.stdin.readline().strip("\r\n ").split(" "))
 924                                         return p
 925                                 except:
 926                                         sys.stderr.write("ILLEGAL GIBBERISH\n")
 927                                         continue
 928
 929         # Are you sure you want to quit?
 930         def quit(self, final_result):
 931                 if graphics == None:
 932                         sys.stdout.write("QUIT " + final_result + "\n")
 933
 934         # Completely useless function
 935         def update(self, result):
 936                 if isinstance(graphics, GraphicsThread):
 937                         pass
 938                 else:
 939                         sys.stdout.write(result + "\n")
 940                 return result
 941
 942
 943 # Default internal player (makes random moves)
 944 class InternalAgent(Player):
 945         def __init__(self, name, colour):
 946                 Player.__init__(self, name, colour)
 947                 self.choice = None
 948
 949                 self.board = Board(style = "agent")
 950
 951         def argForm(self):
 952                 return "@internal:"+self.name
 953
 954         def update(self, result):
 955
 956                 self.board.update(result)
 957                 #self.board.verify()
 958                 return result
 959
 960         def reset_board(self, s):
 961                 self.board.reset_board(s)
 962
 963         def quit(self, final_result):
 964                 pass
 965
 966 class AgentRandom(InternalAgent):
 967         def __init__(self, name, colour):
 968                 InternalAgent.__init__(self, name, colour)
 969
 970         def select(self):
 971                 while True:
 972                         self.choice = self.board.pieces[self.colour][random.randint(0, len(self.board.pieces[self.colour])-1)]
 973                         all_moves = []
 974                         # Check that the piece has some possibility to move
 975                         tmp = self.choice.current_type
 976                         if tmp == "unknown": # For unknown pieces, try both types
 977                                 for t in self.choice.types:
 978                                         if t == "unknown":
 979                                                 continue
 980                                         self.choice.current_type = t
 981                                         all_moves += self.board.possible_moves(self.choice)
 982                         else:
 983                                 all_moves = self.board.possible_moves(self.choice)
 984                         self.choice.current_type = tmp
 985                         if len(all_moves) > 0:
 986                                 break
 987                 return [self.choice.x, self.choice.y]
 988
 989         def get_move(self):
 990                 moves = self.board.possible_moves(self.choice)
 991                 move = moves[random.randint(0, len(moves)-1)]
 992                 return move
 993
 994
 995 # Terrible, terrible hacks
 996
 997 def run_agent(agent):
 998         #sys.stderr.write(sys.argv[0] + " : Running agent " + str(agent) + "\n")
 999         while True:
1000                 line = sys.stdin.readline().strip(" \r\n")
1001                 if line == "SELECTION?":
1002                         #sys.stderr.write(sys.argv[0] + " : Make selection\n")
1003                         [x,y] = agent.select() # Gets your agent's selection
1004                         #sys.stderr.write(sys.argv[0] + " : Selection was " + str(agent.choice) + "\n")
1005                         sys.stdout.write(str(x) + " " + str(y) + "\n")
1006                 elif line == "MOVE?":
1007                         #sys.stderr.write(sys.argv[0] + " : Make move\n")
1008                         [x,y] = agent.get_move() # Gets your agent's move
1009                         sys.stdout.write(str(x) + " " + str(y) + "\n")
1010                 elif line.split(" ")[0] == "QUIT":
1011                         #sys.stderr.write(sys.argv[0] + " : Quitting\n")
1012                         agent.quit(" ".join(line.split(" ")[1:])) # Quits the game
1013                         break
1014                 elif line.split(" ")[0] == "BOARD":
1015                         s = ""
1016                         line = sys.stdin.readline().strip(" \r\n")
1017                         while line != "END BOARD":
1018                                 s += line + "\n"
1019                                 line = sys.stdin.readline().strip(" \r\n")
1020                         agent.board.reset_board(s)
1021
1022                 else:
1023                         agent.update(line) # Updates agent.board
1024         return 0
1025
1026
1027 # Sort of works?
1028
1029 class ExternalWrapper(ExternalAgent):
1030         def __init__(self, agent):
1031                 run = "python -u -c \"import sys;import os;from qchess import *;agent = " + agent.__class__.__name__ + "('" + agent.name + "','"+agent.colour+"');sys.stdin.readline();sys.exit(run_agent(agent))\""
1032                 # str(run)
1033                 ExternalAgent.__init__(self, run, agent.colour)
1034
1035
1036
1037 # --- player.py --- #
1038 # A sample agent
1039
1040
1041 class AgentBishop(AgentRandom): # Inherits from AgentRandom (in qchess)
1042         def __init__(self, name, colour,value={"pawn" : 1, "bishop" : 3, "knight" : 3, "rook" : 5, "queen" : 9, "king" : 100, "unknown" : 2}):
1043                 InternalAgent.__init__(self, name, colour)
1044                 self.value = value
1045                 self.aggression = 2.0 # Multiplier for scoring due to aggressive actions
1046                 self.defence = 1.0 # Multiplier for scoring due to defensive actions
1047
1048                 self.depth = 0 # Current depth
1049                 self.max_depth = 2 # Recurse this many times (for some reason, makes more mistakes when this is increased???)
1050                 self.recurse_for = -1 # Recurse for the best few moves each times (less than 0 = all moves)
1051
1052                 for p in self.board.pieces["white"] + self.board.pieces["black"]:
1053                         p.last_moves = None
1054                         p.selected_moves = None
1055
1056
1057
1058         def get_value(self, piece):
1059                 if piece == None:
1060                         return 0.0
1061                 return float(self.value[piece.types[0]] + self.value[piece.types[1]]) / 2.0
1062
1063         # Score possible moves for the piece
1064
1065         def prioritise_moves(self, piece):
1066
1067                 #sys.stderr.write(sys.argv[0] + " : " + str(self) + " prioritise called for " + str(piece) + "\n")
1068
1069
1070
1071                 grid = self.board.probability_grid(piece)
1072                 #sys.stderr.write("\t Probability grid " + str(grid) + "\n")
1073                 moves = []
1074                 for x in range(w):
1075                         for y in range(h):
1076                                 if grid[x][y] < 0.3: # Throw out moves with < 30% probability
1077                                         #sys.stderr.write("\tReject " + str(x) + "," + str(y) + " (" + str(grid[x][y]) + ")\n")
1078                                         continue
1079
1080                                 target = self.board.grid[x][y]
1081
1082
1083
1084
1085                                 # Get total probability that the move is protected
1086                                 self.board.push_move(piece, x, y)
1087
1088
1089
1090                                 defenders = self.board.coverage(x, y, piece.colour, reject_allied = False)
1091                                 d_prob = 0.0
1092                                 for d in defenders.keys():
1093                                         d_prob += defenders[d]
1094                                 if len(defenders.keys()) > 0:
1095                                         d_prob /= float(len(defenders.keys()))
1096
1097                                 if (d_prob > 1.0):
1098                                         d_prob = 1.0
1099
1100                                 # Get total probability that the move is threatened
1101                                 attackers = self.board.coverage(x, y, opponent(piece.colour), reject_allied = False)
1102                                 a_prob = 0.0
1103                                 for a in attackers.keys():
1104                                         a_prob += attackers[a]
1105                                 if len(attackers.keys()) > 0:
1106                                         a_prob /= float(len(attackers.keys()))
1107
1108                                 if (a_prob > 1.0):
1109                                         a_prob = 1.0
1110
1111                                 self.board.pop_move()
1112
1113
1114
1115                                 # Score of the move
1116                                 value = self.aggression * (1.0 + d_prob) * self.get_value(target) - self.defence * (1.0 - d_prob) * a_prob * self.get_value(piece)
1117
1118                                 # Adjust score based on movement of piece out of danger
1119                                 attackers = self.board.coverage(piece.x, piece.y, opponent(piece.colour))
1120                                 s_prob = 0.0
1121                                 for a in attackers.keys():
1122                                         s_prob += attackers[a]
1123                                 if len(attackers.keys()) > 0:
1124                                         s_prob /= float(len(attackers.keys()))
1125
1126                                 if (s_prob > 1.0):
1127                                         s_prob = 1.0
1128                                 value += self.defence * s_prob * self.get_value(piece)
1129
1130                                 # Adjust score based on probability that the move is actually possible
1131                                 moves.append([[x, y], grid[x][y] * value])
1132
1133                 moves.sort(key = lambda e : e[1], reverse = True)
1134                 #sys.stderr.write(sys.argv[0] + ": Moves for " + str(piece) + " are " + str(moves) + "\n")
1135
1136                 piece.last_moves = moves
1137                 piece.selected_moves = None
1138
1139
1140
1141
1142                 return moves
1143
1144         def select_best(self, colour):
1145
1146                 self.depth += 1
1147                 all_moves = {}
1148                 for p in self.board.pieces[colour]:
1149                         self.choice = p # Temporarily pick that piece
1150                         m = self.prioritise_moves(p)
1151                         if len(m) > 0:
1152                                 all_moves.update({p : m[0]})
1153
1154                 if len(all_moves.items()) <= 0:
1155                         return None
1156
1157
1158                 opts = all_moves.items()
1159                 opts.sort(key = lambda e : e[1][1], reverse = True)
1160
1161                 if self.depth >= self.max_depth:
1162                         self.depth -= 1
1163                         return list(opts[0])
1164
1165                 if self.recurse_for >= 0:
1166                         opts = opts[0:self.recurse_for]
1167                 #sys.stderr.write(sys.argv[0] + " : Before recurse, options are " + str(opts) + "\n")
1168
1169                 # Take the best few moves, and recurse
1170                 for choice in opts[0:self.recurse_for]:
1171                         [xx,yy] = [choice[0].x, choice[0].y] # Remember position
1172                         [nx,ny] = choice[1][0] # Target
1173                         [choice[0].x, choice[0].y] = [nx, ny] # Set position
1174                         target = self.board.grid[nx][ny] # Remember piece in spot
1175                         self.board.grid[xx][yy] = None # Remove piece
1176                         self.board.grid[nx][ny] = choice[0] # Replace with moving piece
1177
1178                         # Recurse
1179                         best_enemy_move = self.select_best(opponent(choice[0].colour))
1180                         choice[1][1] -= best_enemy_move[1][1] / float(self.depth + 1.0)
1181
1182                         [choice[0].x, choice[0].y] = [xx, yy] # Restore position
1183                         self.board.grid[nx][ny] = target # Restore taken piece
1184                         self.board.grid[xx][yy] = choice[0] # Restore moved piece
1185
1186
1187
1188                 opts.sort(key = lambda e : e[1][1], reverse = True)
1189                 #sys.stderr.write(sys.argv[0] + " : After recurse, options are " + str(opts) + "\n")
1190
1191                 self.depth -= 1
1192                 return list(opts[0])
1193
1194
1195
1196         # Returns [x,y] of selected piece
1197         def select(self):
1198                 #sys.stderr.write("Getting choice...")
1199                 self.choice = self.select_best(self.colour)[0]
1200
1201                 #sys.stderr.write(" Done " + str(self.choice)+"\n")
1202                 return [self.choice.x, self.choice.y]
1203
1204         # Returns [x,y] of square to move selected piece into
1205         def get_move(self):
1206                 #sys.stderr.write("Choice is " + str(self.choice) + "\n")
1207                 self.choice.selected_moves = self.choice.last_moves
1208                 moves = self.prioritise_moves(self.choice)
1209                 if len(moves) > 0:
1210                         return moves[0][0]
1211                 else:
1212                         return AgentRandom.get_move(self)
1213
1214 # --- agent_bishop.py --- #
1215 import multiprocessing
1216
1217 # Hacky alternative to using select for timing out players
1218
1219 # WARNING: Do not wrap around HumanPlayer or things breakify
1220 # WARNING: Do not use in general or things breakify
1221
1222 class Sleeper(multiprocessing.Process):
1223         def __init__(self, timeout):
1224                 multiprocessing.Process.__init__(self)
1225                 self.timeout = timeout
1226
1227         def run(self):
1228                 time.sleep(self.timeout)
1229
1230
1231 class Worker(multiprocessing.Process):
1232         def __init__(self, function, args, q):
1233                 multiprocessing.Process.__init__(self)
1234                 self.function = function
1235                 self.args = args
1236                 self.q = q
1237
1238         def run(self):
1239                 #print str(self) + " runs " + str(self.function) + " with args " + str(self.args)
1240                 #try:
1241                 self.q.put(self.function(*self.args))
1242                 #except IOError:
1243                 #       pass
1244
1245
1246
1247 def TimeoutFunction(function, args, timeout):
1248         q = multiprocessing.Queue()
1249         w = Worker(function, args, q)
1250         s = Sleeper(timeout)
1251         w.start()
1252         s.start()
1253         while True: # Busy loop of crappyness
1254                 if not w.is_alive():
1255                         s.terminate()
1256                         result = q.get()
1257                         w.join()
1258                         #print "TimeoutFunction gets " + str(result)
1259                         return result
1260                 elif not s.is_alive():
1261                         w.terminate()
1262                         s.join()
1263                         raise Exception("TIMEOUT")
1264                 time.sleep(0.1)
1265
1266
1267
1268 # A player that wraps another player and times out its moves
1269 # Uses threads
1270 # A (crappy) alternative to the use of select()
1271 class TimeoutPlayer(Player):
1272         def __init__(self, base_player, timeout):
1273                 Player.__init__(self, base_player.name, base_player.colour)
1274                 self.base_player = base_player
1275                 self.timeout = timeout
1276
1277         def select(self):
1278                 return TimeoutFunction(self.base_player.select, [], self.timeout)
1279
1280
1281         def get_move(self):
1282                 return TimeoutFunction(self.base_player.get_move, [], self.timeout)
1283
1284         def update(self, result):
1285                 return TimeoutFunction(self.base_player.update, [result], self.timeout)
1286
1287         def quit(self, final_result):
1288                 return TimeoutFunction(self.base_player.quit, [final_result], self.timeout)
1289 # --- timeout_player.py --- #
1290 import socket
1291 import select
1292
1293 network_timeout_start = -1.0 # Timeout in seconds to wait for the start of a message
1294 network_timeout_delay = 1.0 # Maximum time between two characters being received
1295
1296 class NetworkPlayer(Player):
1297         def __init__(self, colour, network, player):
1298                 Player.__init__(self, "@network:"+str(network.address), colour)
1299                 self.player = player
1300                 self.network = network
1301
1302         def __str__(self):
1303                 return "NetworkPlayer<"+str(self.colour)+","+str(self.player)+">"
1304
1305         def select(self):
1306                 #debug(str(self) + " select called")
1307                 if self.player != None:
1308                         s = self.player.select()
1309                         self.send_message(str(s[0]) + " " + str(s[1]))
1310                 else:
1311                         s = map(int, self.get_response().split(" "))
1312                         for p in game.players:
1313                                 if p != self and isinstance(p, NetworkPlayer) and p.player == None:
1314                                         p.network.send_message(str(s[0]) + " " + str(s[1]))
1315                 if s == [-1,-1]:
1316                         game.final_result = "network terminate"
1317                         game.stop()
1318                 return s
1319
1320         def send_message(self, message):
1321                 #debug(str(self) + " send_message(\""+str(message)+"\") called")
1322                 self.network.send_message(message)
1323
1324         def get_response(self):
1325                 #debug(str(self) + " get_response() called")
1326                 s = self.network.get_response()
1327                 #debug(str(self) + " get_response() returns \""+str(s)+"\"")
1328                 return s
1329
1330
1331         def get_move(self):
1332                 #debug(str(self) + " get_move called")
1333                 if self.player != None:
1334                         s = self.player.get_move()
1335                         self.send_message(str(s[0]) + " " + str(s[1]))
1336                 else:
1337                         s = map(int, self.get_response().split(" "))
1338                         for p in game.players:
1339                                 if p != self and isinstance(p, NetworkPlayer) and p.player == None:
1340                                         p.network.send_message(str(s[0]) + " " + str(s[1]))
1341
1342                 if s == [-1,-1]:
1343                         game.final_result = "network terminate"
1344                         game.stop()
1345                 return s
1346
1347         def update(self, result):
1348                 #debug(str(self) + " update(\""+str(result)+"\") called")
1349                 if self.network.server == True:
1350                         if self.player == None:
1351                                 self.send_message(result)
1352                 elif self.player != None:
1353                         result = self.get_response()
1354                         if result == "-1 -1":
1355                                 game.final_result = "network terminate"
1356                                 game.stop()
1357                                 return "-1 -1"
1358                         self.board.update(result, deselect=False)
1359
1360
1361
1362                 if self.player != None:
1363                         result = self.player.update(result)
1364
1365                 return result
1366
1367
1368
1369         def base_player(self):
1370                 if self.player == None:
1371                         return self
1372                 else:
1373                         return self.player.base_player()
1374
1375         def quit(self, result):
1376                 try:
1377                         self.send_message("-1 -1")
1378                 except:
1379                         pass
1380
1381 class Network():
1382         def __init__(self, address = (None,4562)):
1383                 self.socket = socket.socket()
1384                 self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
1385                 #self.socket.setblocking(0)
1386                 self.address = address
1387                 self.server = (address[0] == None)
1388
1389
1390                 self.connected = False
1391
1392         def connect(self):
1393                 #debug(str(self) + "Tries to connect")
1394                 self.connected = True
1395                 if self.address[0] == None:
1396                         self.host = "0.0.0.0" #socket.gethostname() # Breaks things???
1397                         self.socket.bind((self.host, self.address[1]))
1398                         self.socket.listen(5)
1399
1400                         self.src, self.actual_address = self.socket.accept()
1401
1402                         self.src.send("ok\n")
1403                         s = self.get_response()
1404                         if s == "QUIT":
1405                                 self.src.close()
1406                                 return
1407                         elif s != "ok":
1408                                 self.src.close()
1409                                 self.__init__(colour, (self.address[0], int(s)), baseplayer)
1410                                 return
1411
1412                 else:
1413                         time.sleep(0.3)
1414                         self.socket.connect(self.address)
1415                         self.src = self.socket
1416                         self.src.send("ok\n")
1417                         s = self.get_response()
1418                         if s == "QUIT":
1419                                 self.src.close()
1420                                 return
1421                         elif s != "ok":
1422                                 self.src.close()
1423                                 self.__init__(colour, (self.address[0], int(s)), baseplayer)
1424                                 return
1425
1426
1427
1428         def __str__(self):
1429                 return "@network:"+str(self.address)
1430
1431         def get_response(self):
1432
1433                 # Timeout the start of the message (first character)
1434                 if network_timeout_start > 0.0:
1435                         ready = select.select([self.src], [], [], network_timeout_start)[0]
1436                 else:
1437                         ready = [self.src]
1438                 if self.src in ready:
1439                         s = self.src.recv(1)
1440                 else:
1441                         raise Exception("NET_UNRESPONSIVE")
1442
1443
1444                 debug("Network get_response s = " + str(s))
1445
1446                 while s[len(s)-1] != '\n':
1447                         # Timeout on each character in the message
1448                         if network_timeout_delay > 0.0:
1449                                 ready = select.select([self.src], [], [], network_timeout_delay)[0]
1450                         else:
1451                                 ready = [self.src]
1452                         if self.src in ready:
1453                                 s += self.src.recv(1)
1454                         else:
1455                                 raise Exception("NET_UNRESPONSIVE")
1456
1457
1458                 return s.strip(" \r\n")
1459
1460         def send_message(self,s):
1461                 if network_timeout_start > 0.0:
1462                         ready = select.select([], [self.src], [], network_timeout_start)[1]
1463                 else:
1464                         ready = [self.src]
1465
1466                 if self.src in ready:
1467                         self.src.send(s + "\n")
1468                 else:
1469                         raise Exception("NET_UNRESPONSIVE")
1470
1471
1472
1473         def close(self):
1474                 self.src.shutdown()
1475                 self.src.close()
1476 # --- network.py --- #
1477 import threading
1478
1479 # A thread that can be stopped!
1480 # Except it can only be stopped if it checks self.stopped() periodically
1481 # So it can sort of be stopped
1482 class StoppableThread(threading.Thread):
1483         def __init__(self):
1484                 threading.Thread.__init__(self)
1485                 self._stop = threading.Event()
1486
1487         def stop(self):
1488                 self._stop.set()
1489
1490         def stopped(self):
1491                 return self._stop.isSet()# --- thread_util.py --- #
1492 log_files = []
1493 import datetime
1494 import urllib2
1495
1496 class LogFile():
1497         def __init__(self, log, name):
1498                 self.name = name
1499                 self.log = log
1500                 self.logged = []
1501                 self.log.write("# Log starts " + str(datetime.datetime.now()) + "\n")
1502
1503         def write(self, s):
1504                 now = datetime.datetime.now()
1505                 self.log.write(str(now) + " : " + s + "\n")
1506                 self.logged.append((now, s))
1507
1508         def setup(self, board, players):
1509
1510                 for p in players:
1511                         self.log.write("# " + str(p.colour) + " : " + str(p.name) + "\n")
1512
1513                 self.log.write("# Initial board\n")
1514                 for x in range(0, w):
1515                         for y in range(0, h):
1516                                 if board.grid[x][y] != None:
1517                                         self.log.write(str(board.grid[x][y]) + "\n")
1518
1519                 self.log.write("# Start game\n")
1520
1521         def close(self):
1522                 self.log.write("# EOF\n")
1523                 if self.log != sys.stdout:
1524                         self.log.close()
1525
1526 class ShortLog(LogFile):
1527         def __init__(self, file_name):
1528                 if file_name == "":
1529                         self.log = sys.stdout
1530                 else:
1531                         self.log = open(file_name, "w", 0)
1532                 LogFile.__init__(self, self.log, "@"+file_name)
1533                 self.file_name = file_name
1534                 self.phase = 0
1535
1536         def write(self, s):
1537                 now = datetime.datetime.now()
1538                 self.logged.append((now, s))
1539
1540                 if self.phase == 0:
1541                         if self.log != sys.stdout:
1542                                 self.log.close()
1543                                 self.log = open(self.file_name, "w", 0)
1544                         self.log.write("# Short log updated " + str(datetime.datetime.now()) + "\n")
1545                         LogFile.setup(self, game.board, game.players)
1546
1547                 elif self.phase == 1:
1548                         for message in self.logged[len(self.logged)-2:]:
1549                                 self.log.write(str(message[0]) + " : " + message[1] + "\n")
1550
1551                 self.phase = (self.phase + 1) % 2
1552
1553         def close(self):
1554                 if self.phase == 1:
1555                         ending = self.logged[len(self.logged)-1]
1556                         self.log.write(str(ending[0]) + " : " + ending[1] + "\n")
1557                 self.log.write("# EOF\n")
1558                 if self.log != sys.stdout:
1559                         self.log.close()
1560
1561
1562 class HeadRequest(urllib2.Request):
1563         def get_method(self):
1564                 return "HEAD"
1565
1566 class HttpGetter(StoppableThread):
1567         def __init__(self, address):
1568                 StoppableThread.__init__(self)
1569                 self.address = address
1570                 self.log = urllib2.urlopen(address)
1571                 self.lines = []
1572                 self.lock = threading.RLock() #lock for access of self.state
1573                 self.cond = threading.Condition() # conditional
1574
1575         def run(self):
1576                 while not self.stopped():
1577                         line = self.log.readline()
1578                         if line == "":
1579                                 date_mod = datetime.datetime.strptime(self.log.headers['last-modified'], "%a, %d %b %Y %H:%M:%S GMT")
1580                                 self.log.close()
1581
1582                                 next_log = urllib2.urlopen(HeadRequest(self.address))
1583                                 date_new = datetime.datetime.strptime(next_log.headers['last-modified'], "%a, %d %b %Y %H:%M:%S GMT")
1584                                 while date_new <= date_mod and not self.stopped():
1585                                         next_log = urllib2.urlopen(HeadRequest(self.address))
1586                                         date_new = datetime.datetime.strptime(next_log.headers['last-modified'], "%a, %d %b %Y %H:%M:%S GMT")
1587                                 if self.stopped():
1588                                         break
1589
1590                                 self.log = urllib2.urlopen(self.address)
1591                                 line = self.log.readline()
1592
1593                         self.cond.acquire()
1594                         self.lines.append(line)
1595                         self.cond.notifyAll()
1596                         self.cond.release()
1597
1598                         #sys.stderr.write(" HttpGetter got \'" + str(line) + "\'\n")
1599
1600                 self.log.close()
1601
1602
1603
1604
1605
1606 class HttpReplay():
1607         def __init__(self, address):
1608                 self.getter = HttpGetter(address)
1609                 self.getter.start()
1610
1611         def readline(self):
1612                 self.getter.cond.acquire()
1613                 while len(self.getter.lines) == 0:
1614                         self.getter.cond.wait()
1615
1616                 result = self.getter.lines[0]
1617                 self.getter.lines = self.getter.lines[1:]
1618                 self.getter.cond.release()
1619
1620                 return result
1621
1622
1623         def close(self):
1624                 self.getter.stop()
1625
1626 class FileReplay():
1627         def __init__(self, filename):
1628                 self.f = open(filename, "r", 0)
1629                 self.filename = filename
1630                 self.mod = os.path.getmtime(filename)
1631                 self.count = 0
1632
1633         def readline(self):
1634                 line = self.f.readline()
1635
1636                 while line == "":
1637                         mod2 = os.path.getmtime(self.filename)
1638                         if mod2 > self.mod:
1639                                 #sys.stderr.write("File changed!\n")
1640                                 self.mod = mod2
1641                                 self.f.close()
1642                                 self.f = open(self.filename, "r", 0)
1643
1644                                 new_line = self.f.readline()
1645
1646                                 if " ".join(new_line.split(" ")[0:3]) != "# Short log":
1647                                         for i in range(self.count):
1648                                                 new_line = self.f.readline()
1649                                                 #sys.stderr.write("Read back " + str(i) + ": " + str(new_line) + "\n")
1650                                         new_line = self.f.readline()
1651                                 else:
1652                                         self.count = 0
1653
1654                                 line = new_line
1655
1656                 self.count += 1
1657                 return line
1658
1659         def close(self):
1660                 self.f.close()
1661
1662
1663 def log(s):
1664         for l in log_files:
1665                 l.write(s)
1666
1667 def debug(s):
1668         sys.stderr.write("# DEBUG: " + s + "\n")
1669
1670
1671 def log_init(board, players):
1672         for l in log_files:
1673                 l.setup(board, players)
1674
1675 # --- log.py --- #
1676
1677
1678
1679
1680
1681 # A thread that runs the game
1682 class GameThread(StoppableThread):
1683         def __init__(self, board, players, server = True):
1684                 StoppableThread.__init__(self)
1685                 self.board = board
1686                 self.players = players
1687                 self.state = {"turn" : None} # The game state
1688                 self.error = 0 # Whether the thread exits with an error
1689                 self.lock = threading.RLock() #lock for access of self.state
1690                 self.cond = threading.Condition() # conditional for some reason, I forgot
1691                 self.final_result = ""
1692                 self.server = server
1693                 self.retry_illegal = False
1694
1695
1696
1697
1698         # Run the game (run in new thread with start(), run in current thread with run())
1699         def run(self):
1700                 result = ""
1701                 while not self.stopped():
1702
1703                         for p in self.players:
1704                                 with self.lock:
1705                                         self.state["turn"] = p.base_player()
1706                                 try:
1707                                 #if True:
1708                                         [x,y] = p.select() # Player selects a square
1709                                         if self.stopped():
1710                                                 #debug("Quitting in select")
1711                                                 break
1712
1713                                         if isinstance(p, NetworkPlayer):
1714                                                 if p.network.server == True:
1715                                                         result = self.board.select(x, y, colour = p.colour)
1716                                                 else:
1717                                                         result = None
1718
1719                                         else:
1720                                                 result = self.board.select(x, y, colour = p.colour)
1721
1722                                         result = p.update(result)
1723                                         if self.stopped():
1724                                                 break
1725                                         for p2 in self.players:
1726                                                 if p2 == p:
1727                                                         continue
1728                                                 p2.update(result) # Inform players of what happened
1729                                                 if self.stopped():
1730                                                         break
1731
1732                                         if self.stopped():
1733                                                 break
1734
1735
1736                                         log(result)
1737
1738                                         target = self.board.grid[x][y]
1739                                         if isinstance(graphics, GraphicsThread):
1740                                                 with graphics.lock:
1741                                                         graphics.state["moves"] = self.board.possible_moves(target)
1742                                                         graphics.state["select"] = target
1743
1744                                         time.sleep(turn_delay)
1745
1746
1747                                         if len(self.board.possible_moves(target)) == 0:
1748                                                 #print "Piece cannot move"
1749                                                 target.deselect()
1750                                                 if isinstance(graphics, GraphicsThread):
1751                                                         with graphics.lock:
1752                                                                 graphics.state["moves"] = None
1753                                                                 graphics.state["select"] = None
1754                                                                 graphics.state["dest"] = None
1755                                                 continue
1756
1757                                         #try:
1758                                         [x2,y2] = p.get_move() # Player selects a destination
1759                                         #except:
1760                                         #       self.stop()
1761
1762                                         if self.stopped():
1763                                                 #debug("Quitting in get_move")
1764                                                 break
1765
1766                                         if isinstance(p, NetworkPlayer):
1767                                                 if p.network.server == True:
1768                                                         result = str(x) + " " + str(y) + " -> " + str(x2) + " " + str(y2)
1769                                                         self.board.update_move(x, y, x2, y2)
1770                                                 else:
1771                                                         result = None
1772
1773                                         else:
1774                                                 result = str(x) + " " + str(y) + " -> " + str(x2) + " " + str(y2)
1775                                                 self.board.update_move(x, y, x2, y2)
1776
1777                                         result = p.update(result)
1778                                         if self.stopped():
1779                                                 break
1780                                         for p2 in self.players:
1781                                                 if p2 == p:
1782                                                         continue
1783                                                 p2.update(result) # Inform players of what happened
1784                                                 if self.stopped():
1785                                                         break
1786
1787                                         if self.stopped():
1788                                                 break
1789
1790
1791
1792                                         log(result)
1793
1794
1795
1796
1797                                         if isinstance(graphics, GraphicsThread):
1798                                                 with graphics.lock:
1799                                                         graphics.state["moves"] = [[x2,y2]]
1800
1801                                         time.sleep(turn_delay)
1802
1803                                         if isinstance(graphics, GraphicsThread):
1804                                                 with graphics.lock:
1805                                                         graphics.state["select"] = None
1806                                                         graphics.state["dest"] = None
1807                                                         graphics.state["moves"] = None
1808
1809
1810                                         end = self.board.end_condition()
1811                                         if end != None:
1812                                                 with self.lock:
1813                                                         if end == "DRAW":
1814                                                                 self.final_result = self.state["turn"].colour + " " + end
1815                                                         else:
1816                                                                 self.final_result = end
1817                                                 self.stop()
1818
1819                                         if self.stopped():
1820                                                 break
1821                                 except Exception,e:
1822                                 #if False:
1823
1824
1825                                         result = e.message
1826                                         if self.retry_illegal:
1827                                                 self.state["turn"].update(result);
1828                                         else:
1829                                                 sys.stderr.write("qchess.py exception: "+result + "\n")
1830                                                 self.stop()
1831                                                 with self.lock:
1832                                                         self.final_result = self.state["turn"].colour + " " + e.message
1833                                                 break
1834
1835
1836
1837                 for p2 in self.players:
1838                         p2.quit(self.final_result)
1839
1840                 log(self.final_result)
1841
1842                 if isinstance(graphics, GraphicsThread):
1843                         graphics.stop()
1844
1845
1846 # A thread that replays a log file
1847 class ReplayThread(GameThread):
1848         def __init__(self, players, src, end=False,max_moves=None):
1849                 self.board = Board(style="empty")
1850                 self.board.max_moves = max_moves
1851                 GameThread.__init__(self, self.board, players)
1852                 self.src = src
1853                 self.end = end
1854
1855                 self.reset_board(self.src.readline())
1856
1857         def reset_board(self, line):
1858                 agent_str = ""
1859                 self_str = ""
1860                 while line != "# Start game" and line != "# EOF":
1861
1862                         while line == "":
1863                                 line = self.src.readline().strip(" \r\n")
1864                                 continue
1865
1866                         if line[0] == '#':
1867                                 line = self.src.readline().strip(" \r\n")
1868                                 continue
1869
1870                         self_str += line + "\n"
1871
1872                         if self.players[0].name == "dummy" and self.players[1].name == "dummy":
1873                                 line = self.src.readline().strip(" \r\n")
1874                                 continue
1875
1876                         tokens = line.split(" ")
1877                         types = map(lambda e : e.strip("[] ,'"), tokens[2:4])
1878                         for i in range(len(types)):
1879                                 if types[i][0] == "?":
1880                                         types[i] = "unknown"
1881
1882                         agent_str += tokens[0] + " " + tokens[1] + " " + str(types) + " ".join(tokens[4:]) + "\n"
1883                         line = self.src.readline().strip(" \r\n")
1884
1885                 for p in self.players:
1886                         p.reset_board(agent_str)
1887
1888
1889                 self.board.reset_board(self_str)
1890
1891
1892         def run(self):
1893                 move_count = 0
1894                 last_line = ""
1895                 line = self.src.readline().strip(" \r\n")
1896                 while line != "# EOF":
1897
1898
1899                         if self.stopped():
1900                                 break
1901
1902                         if len(line) <= 0:
1903                                 continue
1904
1905
1906                         if line[0] == '#':
1907                                 last_line = line
1908                                 line = self.src.readline().strip(" \r\n")
1909                                 continue
1910
1911                         tokens = line.split(" ")
1912                         if tokens[0] == "white" or tokens[0] == "black":
1913                                 self.reset_board(line)
1914                                 last_line = line
1915                                 line = self.src.readline().strip(" \r\n")
1916                                 continue
1917
1918                         move = line.split(":")
1919                         move = move[len(move)-1].strip(" \r\n")
1920                         tokens = move.split(" ")
1921
1922
1923                         try:
1924                                 [x,y] = map(int, tokens[0:2])
1925                         except:
1926                                 last_line = line
1927                                 self.stop()
1928                                 break
1929
1930                         log(move)
1931
1932                         target = self.board.grid[x][y]
1933                         with self.lock:
1934                                 if target.colour == "white":
1935                                         self.state["turn"] = self.players[0]
1936                                 else:
1937                                         self.state["turn"] = self.players[1]
1938
1939                         move_piece = (tokens[2] == "->")
1940                         if move_piece:
1941                                 [x2,y2] = map(int, tokens[len(tokens)-2:])
1942
1943                         if isinstance(graphics, GraphicsThread):
1944                                 with graphics.lock:
1945                                         graphics.state["select"] = target
1946
1947                         if not move_piece:
1948                                 self.board.update_select(x, y, int(tokens[2]), tokens[len(tokens)-1])
1949                                 if isinstance(graphics, GraphicsThread):
1950                                         with graphics.lock:
1951                                                 if target.current_type != "unknown":
1952                                                         graphics.state["moves"] = self.board.possible_moves(target)
1953                                                 else:
1954                                                         graphics.state["moves"] = None
1955                                         time.sleep(turn_delay)
1956                         else:
1957                                 self.board.update_move(x, y, x2, y2)
1958                                 if isinstance(graphics, GraphicsThread):
1959                                         with graphics.lock:
1960                                                 graphics.state["moves"] = [[x2,y2]]
1961                                         time.sleep(turn_delay)
1962                                         with graphics.lock:
1963                                                 graphics.state["select"] = None
1964                                                 graphics.state["moves"] = None
1965                                                 graphics.state["dest"] = None
1966
1967
1968
1969
1970
1971                         for p in self.players:
1972                                 p.update(move)
1973
1974                         last_line = line
1975                         line = self.src.readline().strip(" \r\n")
1976
1977
1978                         end = self.board.end_condition()
1979                         if end != None:
1980                                 self.final_result = end
1981                                 self.stop()
1982                                 break
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998                 if self.end and isinstance(graphics, GraphicsThread):
1999                         #graphics.stop()
2000                         pass # Let the user stop the display
2001                 elif not self.end and self.board.end_condition() == None:
2002                         global game
2003                         # Work out the last move
2004
2005                         t = last_line.split(" ")
2006                         if t[len(t)-2] == "black":
2007                                 self.players.reverse()
2008                         elif t[len(t)-2] == "white":
2009                                 pass
2010                         elif self.state["turn"] != None and self.state["turn"].colour == "white":
2011                                 self.players.reverse()
2012
2013
2014                         game = GameThread(self.board, self.players)
2015                         game.run()
2016                 else:
2017                         pass
2018
2019
2020
2021 def opponent(colour):
2022         if colour == "white":
2023                 return "black"
2024         else:
2025                 return "white"
2026 # --- game.py --- #
2027 try:
2028         import pygame
2029 except:
2030         pass
2031 import os
2032
2033 # Dictionary that stores the unicode character representations of the different pieces
2034 # Chess was clearly the reason why unicode was invented
2035 # For some reason none of the pygame chess implementations I found used them!
2036 piece_char = {"white" : {"king" : u'\u2654',
2037                          "queen" : u'\u2655',
2038                          "rook" : u'\u2656',
2039                          "bishop" : u'\u2657',
2040                          "knight" : u'\u2658',
2041                          "pawn" : u'\u2659',
2042                          "unknown" : '?'},
2043                 "black" : {"king" : u'\u265A',
2044                          "queen" : u'\u265B',
2045                          "rook" : u'\u265C',
2046                          "bishop" : u'\u265D',
2047                          "knight" : u'\u265E',
2048                          "pawn" : u'\u265F',
2049                          "unknown" : '?'}}
2050
2051 images = {"white" : {}, "black" : {}}
2052 small_images = {"white" : {}, "black" : {}}
2053
2054 def create_images(grid_sz, font_name=os.path.join(os.path.curdir, "data", "DejaVuSans.ttf")):
2055
2056         # Get the font sizes
2057         l_size = 5*(grid_sz[0] / 8)
2058         s_size = 3*(grid_sz[0] / 8)
2059
2060         for c in piece_char.keys():
2061
2062                 if c == "black":
2063                         for p in piece_char[c].keys():
2064                                 images[c].update({p : pygame.font.Font(font_name, l_size).render(piece_char[c][p], True,(0,0,0))})
2065                                 small_images[c].update({p : pygame.font.Font(font_name, s_size).render(piece_char[c][p],True,(0,0,0))})
2066                 elif c == "white":
2067                         for p in piece_char[c].keys():
2068                                 images[c].update({p : pygame.font.Font(font_name, l_size+1).render(piece_char["black"][p], True,(255,255,255))})
2069                                 images[c][p].blit(pygame.font.Font(font_name, l_size).render(piece_char[c][p], True,(0,0,0)),(0,0))
2070                                 small_images[c].update({p : pygame.font.Font(font_name, s_size+1).render(piece_char["black"][p],True,(255,255,255))})
2071                                 small_images[c][p].blit(pygame.font.Font(font_name, s_size).render(piece_char[c][p],True,(0,0,0)),(0,0))
2072
2073
2074 def load_images(image_dir=os.path.join(os.path.curdir, "data", "images")):
2075         if not os.path.exists(image_dir):
2076                 raise Exception("Couldn't load images from " + image_dir + " (path doesn't exist)")
2077         for c in piece_char.keys():
2078                 for p in piece_char[c].keys():
2079                         images[c].update({p : pygame.image.load(os.path.join(image_dir, c + "_" + p + ".png"))})
2080                         small_images[c].update({p : pygame.image.load(os.path.join(image_dir, c + "_" + p + "_small.png"))})
2081 # --- images.py --- #
2082 graphics_enabled = True
2083
2084 try:
2085         import pygame
2086         os.environ["SDL_VIDEO_ALLOW_SCREENSAVER"] = "1"
2087 except:
2088         graphics_enabled = False
2089
2090 import time
2091
2092
2093
2094 # A thread to make things pretty
2095 class GraphicsThread(StoppableThread):
2096         def __init__(self, board, title = "UCC::Progcomp 2013 - QChess", grid_sz = [80,80]):
2097                 StoppableThread.__init__(self)
2098
2099                 self.board = board
2100                 pygame.init()
2101                 self.window = pygame.display.set_mode((grid_sz[0] * w, grid_sz[1] * h))
2102                 pygame.display.set_caption(title)
2103
2104                 #print "Initialised properly"
2105
2106                 self.grid_sz = grid_sz[:]
2107                 self.state = {"select" : None, "dest" : None, "moves" : None, "overlay" : None, "coverage" : None}
2108                 self.error = 0
2109                 self.lock = threading.RLock()
2110                 self.cond = threading.Condition()
2111                 self.sleep_timeout = None
2112                 self.last_event = time.time()
2113                 self.blackout = False
2114
2115                 #print "Test font"
2116                 pygame.font.Font(os.path.join(os.path.curdir, "data", "DejaVuSans.ttf"), 32).render("Hello", True,(0,0,0))
2117
2118                 #load_images()
2119                 create_images(grid_sz)
2120
2121                 """
2122                 for c in images.keys():
2123                         for p in images[c].keys():
2124                                 images[c][p] = images[c][p].convert(self.window)
2125                                 small_images[c][p] = small_images[c][p].convert(self.window)
2126                 """
2127
2128
2129
2130
2131
2132         # On the run from the world
2133         def run(self):
2134
2135                 while not self.stopped():
2136
2137                         if self.sleep_timeout == None or (time.time() - self.last_event) < self.sleep_timeout:
2138
2139                                 #print "Display grid"
2140                                 self.board.display_grid(window = self.window, grid_sz = self.grid_sz) # Draw the board
2141
2142                                 #print "Display overlay"
2143                                 self.overlay()
2144
2145                                 #print "Display pieces"
2146                                 self.board.display_pieces(window = self.window, grid_sz = self.grid_sz) # Draw the board
2147                                 self.blackout = False
2148
2149                         elif pygame.mouse.get_focused() and not self.blackout:
2150                                 os.system("xset dpms force off")
2151                                 self.blackout = True
2152                                 self.window.fill((0,0,0))
2153
2154                         pygame.display.flip()
2155
2156                         for event in pygame.event.get():
2157                                 self.last_event = time.time()
2158                                 if event.type == pygame.QUIT or (event.type == pygame.KEYDOWN and event.key == pygame.K_q):
2159                                         if isinstance(game, GameThread):
2160                                                 with game.lock:
2161                                                         game.final_result = ""
2162                                                         if game.state["turn"] != None:
2163                                                                 game.final_result = game.state["turn"].colour + " "
2164                                                         game.final_result += "terminated"
2165                                                 game.stop()
2166                                         self.stop()
2167                                         break
2168                                 elif event.type == pygame.MOUSEBUTTONDOWN:
2169                                         self.mouse_down(event)
2170
2171                                 elif event.type == pygame.MOUSEBUTTONUP:
2172                                         self.mouse_up(event)
2173
2174
2175
2176
2177
2178
2179
2180
2181                 self.message("Game ends, result \""+str(game.final_result) + "\"")
2182                 time.sleep(1)
2183
2184                 # Wake up anyone who is sleeping
2185                 self.cond.acquire()
2186                 self.cond.notify()
2187                 self.cond.release()
2188
2189                 pygame.quit() # Time to say goodbye
2190
2191         # Mouse release event handler
2192         def mouse_up(self, event):
2193                 if event.button == 3:
2194                         with self.lock:
2195                                 self.state["overlay"] = None
2196                 elif event.button == 2:
2197                         with self.lock:
2198                                 self.state["coverage"] = None
2199
2200         # Mouse click event handler
2201         def mouse_down(self, event):
2202                 if event.button == 1:
2203                         m = [event.pos[i] / self.grid_sz[i] for i in range(2)]
2204                         if isinstance(game, GameThread):
2205                                 with game.lock:
2206                                         p = game.state["turn"]
2207                         else:
2208                                         p = None
2209
2210
2211                         if isinstance(p, HumanPlayer):
2212                                 with self.lock:
2213                                         s = self.board.grid[m[0]][m[1]]
2214                                         select = self.state["select"]
2215                                 if select == None:
2216                                         if s != None and s.colour != p.colour:
2217                                                 self.message("Wrong colour") # Look at all this user friendliness!
2218                                                 time.sleep(1)
2219                                                 return
2220                                         # Notify human player of move
2221                                         self.cond.acquire()
2222                                         with self.lock:
2223                                                 self.state["select"] = s
2224                                                 self.state["dest"] = None
2225                                         self.cond.notify()
2226                                         self.cond.release()
2227                                         return
2228
2229                                 if select == None:
2230                                         return
2231
2232
2233                                 if self.state["moves"] == None:
2234                                         return
2235
2236                                 if not m in self.state["moves"]:
2237                                         self.message("Illegal Move") # I still think last year's mouse interface was adequate
2238                                         time.sleep(2)
2239                                         return
2240
2241                                 with self.lock:
2242                                         if self.state["dest"] == None:
2243                                                 self.cond.acquire()
2244                                                 self.state["dest"] = m
2245                                                 self.state["select"] = None
2246                                                 self.state["moves"] = None
2247                                                 self.cond.notify()
2248                                                 self.cond.release()
2249                 elif event.button == 3:
2250                         m = [event.pos[i] / self.grid_sz[i] for i in range(len(event.pos))]
2251                         if isinstance(game, GameThread):
2252                                 with game.lock:
2253                                         p = game.state["turn"]
2254                         else:
2255                                 p = None
2256
2257
2258                         if isinstance(p, HumanPlayer):
2259                                 with self.lock:
2260                                         self.state["overlay"] = self.board.probability_grid(self.board.grid[m[0]][m[1]])
2261
2262                 elif event.button == 2:
2263                         m = [event.pos[i] / self.grid_sz[i] for i in range(len(event.pos))]
2264                         if isinstance(game, GameThread):
2265                                 with game.lock:
2266                                         p = game.state["turn"]
2267                         else:
2268                                 p = None
2269
2270
2271                         if isinstance(p, HumanPlayer):
2272                                 with self.lock:
2273                                         self.state["coverage"] = self.board.coverage(m[0], m[1], None, self.state["select"])
2274
2275         # Draw the overlay
2276         def overlay(self):
2277
2278                 square_img = pygame.Surface((self.grid_sz[0], self.grid_sz[1]),pygame.SRCALPHA) # A square image
2279                 # Draw square over the selected piece
2280                 with self.lock:
2281                         select = self.state["select"]
2282                 if select != None:
2283                         mp = [self.grid_sz[i] * [select.x, select.y][i] for i in range(len(self.grid_sz))]
2284                         square_img.fill(pygame.Color(0,255,0,64))
2285                         self.window.blit(square_img, mp)
2286                 # If a piece is selected, draw all reachable squares
2287                 # (This quality user interface has been patented)
2288                 with self.lock:
2289                         m = self.state["moves"]
2290                 if m != None:
2291                         square_img.fill(pygame.Color(255,0,0,128)) # Draw them in blood red
2292                         for move in m:
2293                                 mp = [self.grid_sz[i] * move[i] for i in range(2)]
2294                                 self.window.blit(square_img, mp)
2295                 # If a piece is overlayed, show all squares that it has a probability to reach
2296                 with self.lock:
2297                         m = self.state["overlay"]
2298                 if m != None:
2299                         for x in range(w):
2300                                 for y in range(h):
2301                                         if m[x][y] > 0.0:
2302                                                 mp = [self.grid_sz[i] * [x,y][i] for i in range(2)]
2303                                                 square_img.fill(pygame.Color(255,0,255,int(m[x][y] * 128))) # Draw in purple
2304                                                 self.window.blit(square_img, mp)
2305                                                 font = pygame.font.Font(os.path.join(os.path.curdir, "data", "DejaVuSans.ttf"), 14)
2306                                                 text = font.render("{0:.2f}".format(round(m[x][y],2)), 1, pygame.Color(0,0,0))
2307                                                 self.window.blit(text, mp)
2308
2309                 # If a square is selected, highlight all pieces that have a probability to reach it
2310                 with self.lock:
2311                         m = self.state["coverage"]
2312                 if m != None:
2313                         for p in m:
2314                                 mp = [self.grid_sz[i] * [p.x,p.y][i] for i in range(2)]
2315                                 square_img.fill(pygame.Color(0,255,255, int(m[p] * 196))) # Draw in pale blue
2316                                 self.window.blit(square_img, mp)
2317                                 font = pygame.font.Font(os.path.join(os.path.curdir, "data", "DejaVuSans.ttf"), 14)
2318                                 text = font.render("{0:.2f}".format(round(m[p],2)), 1, pygame.Color(0,0,0))
2319                                 self.window.blit(text, mp)
2320                         # Draw a square where the mouse is
2321                 # This also serves to indicate who's turn it is
2322
2323                 if isinstance(game, GameThread):
2324                         with game.lock:
2325                                 turn = game.state["turn"]
2326                 else:
2327                         turn = None
2328
2329                 if isinstance(turn, HumanPlayer):
2330                         mp = [self.grid_sz[i] * int(pygame.mouse.get_pos()[i] / self.grid_sz[i]) for i in range(2)]
2331                         square_img.fill(pygame.Color(0,0,255,128))
2332                         if turn.colour == "white":
2333                                 c = pygame.Color(255,255,255)
2334                         else:
2335                                 c = pygame.Color(0,0,0)
2336                         pygame.draw.rect(square_img, c, (0,0,self.grid_sz[0], self.grid_sz[1]), self.grid_sz[0]/10)
2337                         self.window.blit(square_img, mp)
2338
2339         # Message in a bottle
2340         def message(self, string, pos = None, colour = None, font_size = 20):
2341                 #print "Drawing message..."
2342                 font = pygame.font.Font(os.path.join(os.path.curdir, "data", "DejaVuSans.ttf"), font_size)
2343                 if colour == None:
2344                         colour = pygame.Color(0,0,0)
2345
2346                 text = font.render(string, 1, colour)
2347
2348
2349                 s = pygame.Surface((text.get_width(), text.get_height()), pygame.SRCALPHA)
2350                 s.fill(pygame.Color(128,128,128))
2351
2352                 tmp = self.window.get_size()
2353
2354                 if pos == None:
2355                         pos = (tmp[0] / 2 - text.get_width() / 2, tmp[1] / 3 - text.get_height())
2356                 else:
2357                         pos = (pos[0]*text.get_width() + tmp[0] / 2 - text.get_width() / 2, pos[1]*text.get_height() + tmp[1] / 3 - text.get_height())
2358
2359
2360                 rect = (pos[0], pos[1], text.get_width(), text.get_height())
2361
2362                 pygame.draw.rect(self.window, pygame.Color(0,0,0), pygame.Rect(rect), 1)
2363                 self.window.blit(s, pos)
2364                 self.window.blit(text, pos)
2365
2366                 pygame.display.flip()
2367
2368         def getstr(self, prompt = None):
2369                 s = pygame.Surface((self.window.get_width(), self.window.get_height()))
2370                 s.blit(self.window, (0,0))
2371                 result = ""
2372
2373                 while True:
2374                         #print "LOOP"
2375                         if prompt != None:
2376                                 self.message(prompt)
2377                                 self.message(result, pos = (0, 1))
2378
2379                         pygame.event.pump()
2380                         for event in pygame.event.get():
2381                                 if event.type == pygame.QUIT:
2382                                         return None
2383                                 if event.type == pygame.KEYDOWN:
2384                                         if event.key == pygame.K_BACKSPACE:
2385                                                 result = result[0:len(result)-1]
2386                                                 self.window.blit(s, (0,0)) # Revert the display
2387                                                 continue
2388
2389
2390                                         try:
2391                                                 if event.unicode == '\r':
2392                                                         return result
2393
2394                                                 result += str(event.unicode)
2395                                         except:
2396                                                 continue
2397
2398
2399         # Function to pick a button
2400         def SelectButton(self, choices, prompt = None, font_size=20):
2401
2402                 #print "Select button called!"
2403                 self.board.display_grid(self.window, self.grid_sz)
2404                 if prompt != None:
2405                         self.message(prompt)
2406                 font = pygame.font.Font(os.path.join(os.path.curdir, "data", "DejaVuSans.ttf"), font_size)
2407                 targets = []
2408                 sz = self.window.get_size()
2409
2410
2411                 for i in range(len(choices)):
2412                         c = choices[i]
2413
2414                         text = font.render(c, 1, pygame.Color(0,0,0))
2415                         p = (sz[0] / 2 - (1.5*text.get_width())/2, sz[1] / 2 +(i-1)*text.get_height()+(i*2))
2416                         targets.append((p[0], p[1], p[0] + 1.5*text.get_width(), p[1] + text.get_height()))
2417
2418                 while True:
2419                         mp =pygame.mouse.get_pos()
2420                         for i in range(len(choices)):
2421                                 c = choices[i]
2422                                 if mp[0] > targets[i][0] and mp[0] < targets[i][2] and mp[1] > targets[i][1] and mp[1] < targets[i][3]:
2423                                         font_colour = pygame.Color(255,0,0)
2424                                         box_colour = pygame.Color(0,0,255,128)
2425                                 else:
2426                                         font_colour = pygame.Color(0,0,0)
2427                                         box_colour = pygame.Color(128,128,128)
2428
2429                                 text = font.render(c, 1, font_colour)
2430                                 s = pygame.Surface((text.get_width()*1.5, text.get_height()), pygame.SRCALPHA)
2431                                 s.fill(box_colour)
2432                                 pygame.draw.rect(s, (0,0,0), (0,0,1.5*text.get_width(), text.get_height()), self.grid_sz[0]/10)
2433                                 s.blit(text, ((text.get_width()*1.5)/2 - text.get_width()/2 ,0))
2434                                 self.window.blit(s, targets[i][0:2])
2435
2436
2437                         pygame.display.flip()
2438
2439                         for event in pygame.event.get():
2440                                 if event.type == pygame.QUIT:
2441                                         return None
2442                                 elif event.type == pygame.MOUSEBUTTONDOWN and event.button == 1:
2443                                         for i in range(len(targets)):
2444                                                 t = targets[i]
2445                                                 if event.pos[0] > t[0] and event.pos[0] < t[2]:
2446                                                         if event.pos[1] > t[1] and event.pos[1] < t[3]:
2447                                                                 return i
2448                                                 #print "Reject " + str(i) + str(event.pos) + " vs " + str(t)
2449
2450
2451         # Function to choose between dedicated server or normal play
2452         def SelectServer(self):
2453
2454                 choice = self.SelectButton(["Normal", "Join Eigenserver"],prompt="Game type?")
2455                 if choice == 0:
2456                         return None
2457                 choice = self.SelectButton(["progcomp.ucc", "other"], prompt="Address?")
2458                 if choice == 0:
2459                         return "progcomp.ucc.asn.au"
2460                 else:
2461                         return self.getstr(prompt = "Enter address:")
2462
2463         # Function to pick players in a nice GUI way
2464         def SelectPlayers(self, players = []):
2465
2466
2467                 #print "SelectPlayers called"
2468
2469                 missing = ["white", "black"]
2470                 for p in players:
2471                         missing.remove(p.colour)
2472
2473                 for colour in missing:
2474
2475
2476                         choice = self.SelectButton(["human", "agent", "network"],prompt = "Choose " + str(colour) + " player")
2477                         if choice == 0:
2478                                 players.append(HumanPlayer("human", colour))
2479                         elif choice == 1:
2480                                 import inspect
2481                                 internal_agents = inspect.getmembers(sys.modules[__name__], inspect.isclass)
2482                                 internal_agents = [x for x in internal_agents if issubclass(x[1], InternalAgent)]
2483                                 internal_agents.remove(('InternalAgent', InternalAgent))
2484                                 if len(internal_agents) > 0:
2485                                         choice2 = self.SelectButton(["internal", "external"], prompt="Type of agent")
2486                                 else:
2487                                         choice2 = 1
2488
2489                                 if choice2 == 0:
2490                                         agent = internal_agents[self.SelectButton(map(lambda e : e[0], internal_agents), prompt="Choose internal agent")]
2491                                         players.append(agent[1](agent[0], colour))
2492                                 elif choice2 == 1:
2493                                         try:
2494                                                 import Tkinter
2495                                                 from tkFileDialog import askopenfilename
2496                                                 root = Tkinter.Tk() # Need a root to make Tkinter behave
2497                                                 root.withdraw() # Some sort of magic incantation
2498                                                 path = askopenfilename(parent=root, initialdir="../agents",title=
2499 'Choose an agent.')
2500                                                 if path == "":
2501                                                         return self.SelectPlayers()
2502                                                 players.append(make_player(path, colour))
2503                                         except:
2504
2505                                                 p = None
2506                                                 while p == None:
2507                                                         self.board.display_grid(self.window, self.grid_sz)
2508                                                         pygame.display.flip()
2509                                                         path = self.getstr(prompt = "Enter path:")
2510                                                         if path == None:
2511                                                                 return None
2512
2513                                                         if path == "":
2514                                                                 return self.SelectPlayers()
2515
2516                                                         try:
2517                                                                 p = make_player(path, colour)
2518                                                         except:
2519                                                                 self.board.display_grid(self.window, self.grid_sz)
2520                                                                 pygame.display.flip()
2521                                                                 self.message("Invalid path!")
2522                                                                 time.sleep(1)
2523                                                                 p = None
2524                                                 players.append(p)
2525                         elif choice == 1:
2526                                 address = ""
2527                                 while address == "":
2528                                         self.board.display_grid(self.window, self.grid_sz)
2529
2530                                         address = self.getstr(prompt = "Address? (leave blank for server)")
2531                                         if address == None:
2532                                                 return None
2533                                         if address == "":
2534                                                 address = None
2535                                                 continue
2536                                         try:
2537                                                 map(int, address.split("."))
2538                                         except:
2539                                                 self.board.display_grid(self.window, self.grid_sz)
2540                                                 self.message("Invalid IPv4 address!")
2541                                                 address = ""
2542
2543                                 players.append(NetworkReceiver(colour, address))
2544                         else:
2545                                 return None
2546                 #print str(self) + ".SelectPlayers returns " + str(players)
2547                 return players
2548
2549
2550
2551 # --- graphics.py --- #
2552 def dedicated_server():
2553         global log_files
2554
2555         max_games = 5
2556         games = []
2557         gameID = 0
2558         while True:
2559                 # Get players
2560                 gameID += 1
2561                 log("Getting clients...")
2562                 s = socket.socket()
2563                 s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
2564                 s.bind(("0.0.0.0", 4562))
2565                 s.listen(2)
2566                 ss = s.accept()
2567
2568                 log("Got white player")
2569
2570                 args = ["python", "qchess.py", "--no-graphics", "@network::"+str(4600+2*len(games)), "@network::"+str(4600+2*len(games))]
2571                 if len(log_files) != 0:
2572                         for l in log_files:
2573                                 if l.name == "":
2574                                         args.append("--log")
2575                                 else:
2576                                         args.append("--log="+str(l.name)+"_"+str(gameID))
2577
2578                 g = subprocess.Popen(args, stdout=subprocess.PIPE)
2579                 games.append(g)
2580
2581                 time.sleep(0.5)
2582                 ss[0].send("white " + str(4600 + 2*(len(games)-1)))
2583                 ss[0].shutdown(socket.SHUT_RD)
2584                 ss[0].close()
2585
2586                 time.sleep(0.5)
2587                 ss = s.accept()
2588
2589                 log("Got black player")
2590
2591                 time.sleep(0.5)
2592                 ss[0].send("black " + str(4600 + 2*(len(games)-1)))
2593                 ss[0].shutdown(socket.SHUT_RD)
2594                 ss[0].close()
2595
2596                 s.shutdown(socket.SHUT_RDWR)
2597                 s.close()
2598
2599
2600                 while len(games) > max_games:
2601                         #log("Too many games; waiting for game to finish...")
2602                         ready = select.select(map(lambda e : e.stdout, games),[], [])
2603                         for r in ready[0]:
2604                                 s = r.readline().strip(" \r\n").split(" ")
2605                                 if s[0] == "white" or s[0] == "black":
2606                                         for g in games[:]:
2607                                                 if g.stdout == r:
2608                                                         log("Game " + str(g) + " has finished")
2609                                                         games.remove(g)
2610
2611         return 0
2612
2613 def client(addr, player="@human"):
2614
2615
2616         debug("Client " + player + " starts")
2617         s = socket.socket()
2618         s.connect((addr, 4562))
2619
2620         [colour,port] = s.recv(1024).strip(" \r\n").split(" ")
2621
2622         debug("Colour: " + colour + ", port: " + port)
2623
2624         s.shutdown(socket.SHUT_RDWR)
2625         s.close()
2626
2627         if colour == "white":
2628                 p = subprocess.Popen(["python", "qchess.py", player, "@network:"+addr+":"+port])
2629         else:
2630                 p = subprocess.Popen(["python", "qchess.py", "@network:"+addr+":"+port, player])
2631         p.wait()
2632         return 0
2633 # --- server.py --- #
2634 #!/usr/bin/python -u
2635
2636 # Do you know what the -u does? It unbuffers stdin and stdout
2637 # I can't remember why, but last year things broke without that
2638
2639 """
2640         UCC::Progcomp 2013 Quantum Chess game
2641         @author Sam Moore [SZM] "matches"
2642         @copyright The University Computer Club, Incorporated
2643                 (ie: You can copy it for not for profit purposes)
2644 """
2645
2646 # system python modules or whatever they are called
2647 import sys
2648 import os
2649 import time
2650
2651 turn_delay = 0.5
2652 sleep_timeout = None
2653 [game, graphics] = [None, None]
2654
2655 def make_player(name, colour):
2656         debug(name)
2657         if name[0] == '@':
2658                 if name[1:] == "human":
2659                         return HumanPlayer(name, colour)
2660                 s = name[1:].split(":")
2661                 if s[0] == "network":
2662                         ip = None
2663                         port = 4562
2664                         #print str(s)
2665                         if len(s) > 1:
2666                                 if s[1] != "":
2667                                         ip = s[1]
2668                         if len(s) > 2:
2669                                 port = int(s[2])
2670
2671                         if ip == None:
2672                                 if colour == "black":
2673                                         port += 1
2674                         elif colour == "white":
2675                                 port += 1
2676
2677                         return NetworkPlayer(colour, Network((ip, port)), None)
2678                 if s[0] == "internal":
2679
2680                         import inspect
2681                         internal_agents = inspect.getmembers(sys.modules[__name__], inspect.isclass)
2682                         internal_agents = [x for x in internal_agents if issubclass(x[1], InternalAgent)]
2683                         internal_agents.remove(('InternalAgent', InternalAgent))
2684
2685                         if len(s) != 2:
2686                                 sys.stderr.write(sys.argv[0] + " : '@internal' should be followed by ':' and an agent name\n")
2687                                 sys.stderr.write(sys.argv[0] + " : Choices are: " + str(map(lambda e : e[0], internal_agents)) + "\n")
2688                                 return None
2689
2690                         for a in internal_agents:
2691                                 if s[1] == a[0]:
2692                                         return a[1](name, colour)
2693
2694                         sys.stderr.write(sys.argv[0] + " : Can't find an internal agent matching \"" + s[1] + "\"\n")
2695                         sys.stderr.write(sys.argv[0] + " : Choices are: " + str(map(lambda e : e[0], internal_agents)) + "\n")
2696                         return None
2697                 if s[0] == "fifo":
2698                         if len(s) > 1:
2699                                 return FifoPlayer(s[1], colour)
2700                         else:
2701                                 return FifoPlayer(str(os.getpid())+"."+colour, colour)
2702
2703         else:
2704                 return ExternalAgent(name, colour)
2705
2706
2707
2708 # The main function! It does the main stuff!
2709 def main(argv):
2710
2711         # Apparently python will silently treat things as local unless you do this
2712         # Anyone who says "You should never use a global variable" can die in a fire
2713         global game
2714         global graphics
2715
2716         global turn_delay
2717         global agent_timeout
2718         global log_files
2719         global src_file
2720         global graphics_enabled
2721         global always_reveal_states
2722         global sleep_timeout
2723
2724
2725         retry_illegal = False
2726         server_addr = None
2727
2728         max_moves = None
2729         src_file = None
2730
2731         style = "quantum"
2732         colour = "white"
2733
2734         # Get the important warnings out of the way
2735         if platform.system() == "Windows":
2736                 sys.stderr.write(sys.argv[0] + " : Warning - You are using " + platform.system() + "\n")
2737                 if platform.release() == "Vista":
2738                         sys.stderr.write(sys.argv[0] + " : God help you.\n")
2739
2740
2741         players = []
2742         i = 0
2743         while i < len(argv)-1:
2744                 i += 1
2745                 arg = argv[i]
2746                 if arg[0] != '-':
2747                         players.append(arg)
2748                         continue
2749
2750                 # Option parsing goes here
2751                 if arg[1] == '-' and arg[2:] == "classical":
2752                         style = "classical"
2753                 elif arg[1] == '-' and arg[2:] == "quantum":
2754                         style = "quantum"
2755                 elif arg[1] == '-' and arg[2:] == "reveal":
2756                         always_reveal_states = True
2757                 elif (arg[1] == '-' and arg[2:] == "graphics"):
2758                         graphics_enabled = True
2759                 elif (arg[1] == '-' and arg[2:] == "no-graphics"):
2760                         graphics_enabled = False
2761                 elif (arg[1] == '-' and arg[2:].split("=")[0] == "file"):
2762                         # Load game from file
2763                         if len(arg[2:].split("=")) == 1:
2764                                 src_file = sys.stdin
2765                         else:
2766                                 f = arg[2:].split("=")[1]
2767                                 if f[0:7] == "http://":
2768                                         src_file = HttpReplay(f)
2769                                 else:
2770                                         src_file = FileReplay(f.split(":")[0])
2771
2772                                         if len(f.split(":")) == 2:
2773                                                 max_moves = int(f.split(":")[1])
2774
2775                 elif (arg[1] == '-' and arg[2:].split("=")[0] == "server"):
2776                         #debug("Server: " + str(arg[2:]))
2777                         if len(arg[2:].split("=")) <= 1:
2778                                 server_addr = True
2779                         else:
2780                                 server_addr = arg[2:].split("=")[1]
2781
2782                 elif (arg[1] == '-' and arg[2:].split("=")[0] == "log"):
2783                         # Log file
2784                         if len(arg[2:].split("=")) == 1:
2785                                 log_files.append(LogFile(sys.stdout,""))
2786                         else:
2787                                 f = arg[2:].split("=")[1]
2788                                 if f == "":
2789                                         log_files.append(LogFile(sys.stdout, ""))
2790                                 elif f[0] == '@':
2791                                         log_files.append(ShortLog(f[1:]))
2792                                 else:
2793                                         log_files.append(LogFile(open(f, "w", 0), f))
2794                 elif (arg[1] == '-' and arg[2:].split("=")[0] == "delay"):
2795                         # Delay
2796                         if len(arg[2:].split("=")) == 1:
2797                                 turn_delay = 0
2798                         else:
2799                                 turn_delay = float(arg[2:].split("=")[1])
2800
2801                 elif (arg[1] == '-' and arg[2:].split("=")[0] == "timeout"):
2802                         # Timeout
2803                         if len(arg[2:].split("=")) == 1:
2804                                 agent_timeout = -1
2805                         else:
2806                                 agent_timeout = float(arg[2:].split("=")[1])
2807                 elif (arg[1] == '-' and arg[2:].split("=")[0] == "blackout"):
2808                         # Screen saver delay
2809                         if len(arg[2:].split("=")) == 1:
2810                                 sleep_timeout = -1
2811                         else:
2812                                 sleep_timeout = float(arg[2:].split("=")[1])
2813                 elif (arg[1] == '-' and arg[2:] == "retry-illegal"):
2814                         retry_illegal = not retry_illegal
2815                 elif (arg[1] == '-' and arg[2:] == "help"):
2816                         # Help
2817                         os.system("less data/help.txt") # The best help function
2818                         return 0
2819
2820         # Dedicated server?
2821
2822         #debug("server_addr = " + str(server_addr))
2823
2824         if server_addr != None:
2825                 if server_addr == True:
2826                         return dedicated_server()
2827                 else:
2828                         if len(players) > 1:
2829                                 sys.stderr.write("Only a single player may be provided when --server is used\n")
2830                                 return 1
2831                         if len(players) == 1:
2832                                 return client(server_addr, players[0])
2833                         else:
2834                                 return client(server_addr)
2835
2836         for i in xrange(len(players)):
2837                 p = make_player(players[i], colour)
2838                 if not isinstance(p, Player):
2839                         sys.stderr.write(sys.argv[0] + " : Fatal error creating " + colour + " player\n")
2840                         return 100
2841                 players[i] = p
2842                 if colour == "white":
2843                         colour = "black"
2844                 elif colour == "black":
2845                         pass
2846                 else:
2847                         sys.stderr.write(sys.argv[0] + " : Too many players (max 2)\n")
2848
2849         # Create the board
2850
2851         # Construct a GameThread! Make it global! Damn the consequences!
2852
2853         if src_file != None:
2854                 # Hack to stop ReplayThread from exiting
2855                 #if len(players) == 0:
2856                 #       players = [HumanPlayer("dummy", "white"), HumanPlayer("dummy", "black")]
2857
2858                 # Normally the ReplayThread exits if there are no players
2859                 # TODO: Decide which behaviour to use, and fix it
2860                 end = (len(players) == 0)
2861                 if end:
2862                         players = [Player("dummy", "white"), Player("dummy", "black")]
2863                 elif len(players) != 2:
2864                         sys.stderr.write(sys.argv[0] + " : Usage " + sys.argv[0] + " white black\n")
2865                         if graphics_enabled:
2866                                 sys.stderr.write(sys.argv[0] + " : (You won't get a GUI, because --file was used, and the author is lazy)\n")
2867                         return 44
2868                 game = ReplayThread(players, src_file, end=end, max_moves=max_moves)
2869         else:
2870                 board = Board(style)
2871                 board.max_moves = max_moves
2872                 game = GameThread(board, players)
2873                 game.retry_illegal = retry_illegal
2874
2875
2876
2877
2878         # Initialise GUI
2879         if graphics_enabled == True:
2880                 try:
2881                         graphics = GraphicsThread(game.board, grid_sz = [64,64]) # Construct a GraphicsThread!
2882
2883                         graphics.sleep_timeout = sleep_timeout
2884
2885                 except Exception,e:
2886                         graphics = None
2887                         sys.stderr.write(sys.argv[0] + " : Got exception trying to initialise graphics\n"+str(e.message)+"\nDisabled graphics\n")
2888                         graphics_enabled = False
2889
2890         # If there are no players listed, display a nice pretty menu
2891         if len(players) != 2:
2892                 if graphics != None:
2893
2894                         server_addr = graphics.SelectServer()
2895                         if server_addr != None:
2896                                 pygame.quit() # Time to say goodbye
2897                                 if server_addr == True:
2898                                         return dedicated_server()
2899                                 else:
2900                                         return client(server_addr)
2901
2902                         players = graphics.SelectPlayers(players)
2903                 else:
2904                         sys.stderr.write(sys.argv[0] + " : Usage " + sys.argv[0] + " white black\n")
2905                         return 44
2906
2907         # If there are still no players, quit
2908         if players == None or len(players) != 2:
2909                 sys.stderr.write(sys.argv[0] + " : Graphics window closed before players chosen\n")
2910                 return 45
2911
2912         old = players[:]
2913         for p in old:
2914                 if isinstance(p, NetworkPlayer):
2915                         for i in range(len(old)):
2916                                 if old[i] == p or isinstance(old[i], NetworkPlayer):
2917                                         continue
2918                                 players[i] = NetworkPlayer(old[i].colour, p.network, old[i])
2919
2920         for p in players:
2921                 #debug(str(p))
2922                 if isinstance(p, NetworkPlayer):
2923                         p.board = game.board
2924                         if not p.network.connected:
2925                                 if not p.network.server:
2926                                         time.sleep(0.2)
2927                                 p.network.connect()
2928
2929
2930         # If using windows, select won't work; use horrible TimeoutPlayer hack
2931         if agent_timeout > 0:
2932                 if platform.system() == "Windows":
2933                         for i in range(len(players)):
2934                                 if isinstance(players[i], ExternalAgent) or isinstance(players[i], InternalAgent):
2935                                         players[i] = TimeoutPlayer(players[i], agent_timeout)
2936
2937                 else:
2938                         warned = False
2939                         # InternalAgents get wrapped to an ExternalAgent when there is a timeout
2940                         # This is not confusing at all.
2941                         for i in range(len(players)):
2942                                 if isinstance(players[i], InternalAgent):
2943                                                 players[i] = ExternalWrapper(players[i])
2944
2945
2946
2947
2948
2949
2950
2951         log_init(game.board, players)
2952
2953
2954         if graphics != None:
2955                 game.start() # This runs in a new thread
2956                 graphics.run()
2957                 if game.is_alive():
2958                         game.join()
2959
2960
2961                 error = game.error + graphics.error
2962         else:
2963                 game.run()
2964                 error = game.error
2965
2966
2967         for l in log_files:
2968                 l.close()
2969
2970         if src_file != None and src_file != sys.stdin:
2971                 src_file.close()
2972
2973         sys.stdout.write(game.final_result + "\n")
2974
2975         return error
2976
2977
2978
2979
2980
2981
2982
2983
2984 # This is how python does a main() function...
2985 if __name__ == "__main__":
2986         retcode = 0
2987         try:
2988                 retcode = main(sys.argv)
2989         except KeyboardInterrupt:
2990                 sys.stderr.write(sys.argv[0] + " : Got KeyboardInterrupt. Stopping everything\n")
2991                 if isinstance(graphics, StoppableThread):
2992                         graphics.stop()
2993                         graphics.run() # Will clean up graphics because it is stopped, not run it (a bit dodgy)
2994
2995                 if isinstance(game, StoppableThread):
2996                         game.stop()
2997                         if game.is_alive():
2998                                 game.join()
2999                 retcode = 102
3000         #except Exception, e:
3001         #       sys.stderr.write(sys.argv[0] + " : " + e.message + "\n")
3002         #       retcode = 103
3003
3004         try:
3005                 sys.stdout.close()
3006         except:
3007                 pass
3008         try:
3009                 sys.stderr.close()
3010         except:
3011                 pass
3012         sys.exit(retcode)
3013
3014
3015 # --- main.py --- #
3016 # EOF - created from make on Monday 24 June  23:55:46 WST 2013