qchess/qchess.py

   1 #!/usr/bin/python -u
   2 # +++ piece.py +++ #
   3 import random
   4
   5 # I know using non-abreviated strings is inefficient, but this is python, who cares?
   6 # Oh, yeah, this stores the number of pieces of each type in a normal chess game
   7 piece_types = {"pawn" : 8, "bishop" : 2, "knight" : 2, "rook" : 2, "queen" : 1, "king" : 1, "unknown" : 0}
   8
   9 # Class to represent a quantum chess piece
  10 class Piece():
  11         def __init__(self, colour, x, y, types):
  12                 self.colour = colour # Colour (string) either "white" or "black"
  13                 self.x = x # x coordinate (0 - 8), none of this fancy 'a', 'b' shit here
  14                 self.y = y # y coordinate (0 - 8)
  15                 self.types = types # List of possible types the piece can be (should just be two)
  16                 self.current_type = "unknown" # Current type
  17                 self.choice = -1 # Index of the current type in self.types (-1 = unknown type)
  18                 self.types_revealed = [True, False] # Whether the types are known (by default the first type is always known at game start)
  19
  20
  21                 #
  22                 self.last_state = None
  23                 self.move_pattern = None
  24
  25
  26
  27         def init_from_copy(self, c):
  28                 self.colour = c.colour
  29                 self.x = c.x
  30                 self.y = c.y
  31                 self.types = c.types[:]
  32                 self.current_type = c.current_type
  33                 self.choice = c.choice
  34                 self.types_revealed = c.types_revealed[:]
  35
  36                 self.last_state = None
  37                 self.move_pattern = None
  38
  39
  40
  41         # Make a string for the piece (used for debug)
  42         def __str__(self):
  43                 return str(self.current_type) + " " + str(self.types) + " at " + str(self.x) + ","+str(self.y)
  44
  45         # Draw the piece in a pygame surface
  46         def draw(self, window, grid_sz = [80,80]):
  47
  48                 # First draw the image corresponding to self.current_type
  49                 img = images[self.colour][self.current_type]
  50                 rect = img.get_rect()
  51                 offset = [-rect.width/2,-3*rect.height/4]
  52                 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]))
  53
  54
  55                 # Draw the two possible types underneath the current_type image
  56                 for i in range(len(self.types)):
  57                         if self.types_revealed[i] == True:
  58                                 img = small_images[self.colour][self.types[i]]
  59                         else:
  60                                 img = small_images[self.colour]["unknown"] # If the type hasn't been revealed, show a placeholder
  61
  62
  63                         rect = img.get_rect()
  64                         offset = [-rect.width/2,-rect.height/2]
  65
  66                         if i == 0:
  67                                 target = (self.x * grid_sz[0] + grid_sz[0]/5 + offset[0], self.y * grid_sz[1] + 3*grid_sz[1]/4 + offset[1])
  68                         else:
  69                                 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])
  70
  71                         window.blit(img, target) # Blit shit
  72
  73         # Collapses the wave function!
  74         def select(self):
  75                 if self.current_type == "unknown":
  76                         self.choice = random.randint(0,1)
  77                         self.current_type = self.types[self.choice]
  78                         self.types_revealed[self.choice] = True
  79                 return self.choice
  80
  81         # Uncollapses (?) the wave function!
  82         def deselect(self):
  83                 #print "Deselect called"
  84                 if (self.x + self.y) % 2 != 0:
  85                         if (self.types[0] != self.types[1]) or (self.types_revealed[0] == False or self.types_revealed[1] == False):
  86                                 self.current_type = "unknown"
  87                                 self.choice = -1
  88                         else:
  89                                 self.choice = 0 # Both the two types are the same
  90
  91         # The sad moment when you realise that you do not understand anything about a subject you studied for 4 years...
  92 # --- piece.py --- #
  93 # +++ board.py +++ #
  94 [w,h] = [8,8] # Width and height of board(s)
  95
  96 # Class to represent a quantum chess board
  97 class Board():
  98         # Initialise; if master=True then the secondary piece types are assigned
  99         #       Otherwise, they are left as unknown
 100         #       So you can use this class in Agent programs, and fill in the types as they are revealed
 101         def __init__(self, style="agent"):
 102                 self.style = style
 103                 self.pieces = {"white" : [], "black" : []}
 104                 self.grid = [[None] * w for _ in range(h)] # 2D List (you can get arrays in python, somehow, but they scare me)
 105                 self.unrevealed_types = {"white" : piece_types.copy(), "black" : piece_types.copy()}
 106                 self.king = {"white" : None, "black" : None} # We need to keep track of the king, because he is important
 107                 for c in ["black", "white"]:
 108                         del self.unrevealed_types[c]["unknown"]
 109
 110                 # Add all the pieces with known primary types
 111                 for i in range(0, 2):
 112
 113                         s = ["black", "white"][i]
 114                         c = self.pieces[s]
 115                         y = [0, h-1][i]
 116
 117                         c.append(Piece(s, 0, y, ["rook"]))
 118                         c.append(Piece(s, 1, y, ["knight"]))
 119                         c.append(Piece(s, 2, y, ["bishop"]))
 120                         k = Piece(s, 3, y, ["king", "king"]) # There can only be one ruler!
 121                         k.types_revealed[1] = True
 122                         k.current_type = "king"
 123                         self.king[s] = k
 124                         c.append(k)
 125                         c.append(Piece(s, 4, y, ["queen"])) # Apparently he may have multiple wives though.
 126                         c.append(Piece(s, 5, y, ["bishop"]))
 127                         c.append(Piece(s, 6, y, ["knight"]))
 128                         c.append(Piece(s, 7, y, ["rook"]))
 129
 130                         if y == 0:
 131                                 y += 1
 132                         else:
 133                                 y -= 1
 134
 135                         # Lots of pawn
 136                         for x in range(0, w):
 137                                 c.append(Piece(s, x, y, ["pawn"]))
 138
 139                         types_left = {}
 140                         types_left.update(piece_types)
 141                         del types_left["king"] # We don't want one of these randomly appearing (although it might make things interesting...)
 142                         del types_left["unknown"] # We certainly don't want these!
 143                         for piece in c:
 144                                 # Add to grid
 145                                 self.grid[piece.x][piece.y] = piece
 146
 147                                 if len(piece.types) > 1:
 148                                         continue
 149                                 if style == "agent": # Assign placeholder "unknown" secondary type
 150                                         piece.types.append("unknown")
 151                                         continue
 152
 153                                 elif style == "quantum":
 154                                         # The master allocates the secondary types
 155                                         choice = types_left.keys()[random.randint(0, len(types_left.keys())-1)]
 156                                         types_left[choice] -= 1
 157                                         if types_left[choice] <= 0:
 158                                                 del types_left[choice]
 159                                         piece.types.append(choice)
 160                                 elif style == "classical":
 161                                         piece.types.append(piece.types[0])
 162                                         piece.current_type = piece.types[0]
 163                                         piece.types_revealed[1] = True
 164                                         piece.choice = 0
 165
 166         def clone(self):
 167                 newboard = Board(master = False)
 168                 newpieces = newboard.pieces["white"] + newboard.pieces["black"]
 169                 mypieces = self.pieces["white"] + self.pieces["black"]
 170
 171                 for i in range(len(mypieces)):
 172                         newpieces[i].init_from_copy(mypieces[i])
 173
 174
 175         def display_grid(self, window = None, grid_sz = [80,80]):
 176                 if window == None:
 177                         return # I was considering implementing a text only display, then I thought "Fuck that"
 178
 179                 # The indentation is getting seriously out of hand...
 180                 for x in range(0, w):
 181                         for y in range(0, h):
 182                                 if (x + y) % 2 == 0:
 183                                         c = pygame.Color(200,200,200)
 184                                 else:
 185                                         c = pygame.Color(64,64,64)
 186                                 pygame.draw.rect(window, c, (x*grid_sz[0], y*grid_sz[1], (x+1)*grid_sz[0], (y+1)*grid_sz[1]))
 187
 188         def display_pieces(self, window = None, grid_sz = [80,80]):
 189                 if window == None:
 190                         return
 191                 for p in self.pieces["white"] + self.pieces["black"]:
 192                         p.draw(window, grid_sz)
 193
 194         # Draw the board in a pygame window
 195         def display(self, window = None):
 196                 self.display_grid(window)
 197                 self.display_pieces(window)
 198
 199
 200
 201
 202         def verify(self):
 203                 for x in range(w):
 204                         for y in range(h):
 205                                 if self.grid[x][y] == None:
 206                                         continue
 207                                 if (self.grid[x][y].x != x or self.grid[x][y].y != y):
 208                                         raise Exception(sys.argv[0] + ": MISMATCH " + str(self.grid[x][y]) + " should be at " + str(x) + "," + str(y))
 209
 210         # Select a piece on the board (colour is the colour of whoever is doing the selecting)
 211         def select(self, x,y, colour=None):
 212                 if not self.on_board(x, y): # Get on board everyone!
 213                         raise Exception("BOUNDS")
 214
 215                 piece = self.grid[x][y]
 216                 if piece == None:
 217                         raise Exception("EMPTY")
 218
 219                 if colour != None and piece.colour != colour:
 220                         raise Exception("COLOUR")
 221
 222                 # I'm not quite sure why I made this return a string, but screw logical design
 223                 return str(x) + " " + str(y) + " " + str(piece.select()) + " " + str(piece.current_type)
 224
 225
 226         # Update the board when a piece has been selected
 227         # "type" is apparently reserved, so I'll use "state"
 228         def update_select(self, x, y, type_index, state):
 229                 piece = self.grid[x][y]
 230                 if piece.types[type_index] == "unknown":
 231                         if not state in self.unrevealed_types[piece.colour].keys():
 232                                 raise Exception("SANITY: Too many " + piece.colour + " " + state + "s")
 233                         self.unrevealed_types[piece.colour][state] -= 1
 234                         if self.unrevealed_types[piece.colour][state] <= 0:
 235                                 del self.unrevealed_types[piece.colour][state]
 236
 237                 piece.types[type_index] = state
 238                 piece.types_revealed[type_index] = True
 239                 piece.current_type = state
 240
 241                 if len(self.possible_moves(piece)) <= 0:
 242                         piece.deselect() # Piece can't move; deselect it
 243
 244         # Update the board when a piece has been moved
 245         def update_move(self, x, y, x2, y2):
 246                 piece = self.grid[x][y]
 247                 self.grid[x][y] = None
 248                 taken = self.grid[x2][y2]
 249                 if taken != None:
 250                         if taken.current_type == "king":
 251                                 self.king[taken.colour] = None
 252                         self.pieces[taken.colour].remove(taken)
 253                 self.grid[x2][y2] = piece
 254                 piece.x = x2
 255                 piece.y = y2
 256
 257                 # If the piece is a pawn, and it reaches the final row, it becomes a queen
 258                 # I know you are supposed to get a choice
 259                 # But that would be effort
 260                 if piece.current_type == "pawn" and ((piece.colour == "white" and piece.y == 0) or (piece.colour == "black" and piece.y == h-1)):
 261                         if self.style == "classical":
 262                                 piece.types[0] = "queen"
 263                                 piece.types[1] = "queen"
 264                         else:
 265                                 piece.types[piece.choice] = "queen"
 266                         piece.current_type = "queen"
 267
 268                 piece.deselect() # Uncollapse (?) the wavefunction!
 269                 self.verify()
 270
 271         # Update the board from a string
 272         # Guesses what to do based on the format of the string
 273         def update(self, result):
 274                 #print "Update called with \"" + str(result) + "\""
 275                 # String always starts with 'x y'
 276                 try:
 277                         s = result.split(" ")
 278                         [x,y] = map(int, s[0:2])
 279                 except:
 280                         raise Exception("GIBBERISH \""+ str(result) + "\"") # Raise expectations
 281
 282                 piece = self.grid[x][y]
 283                 if piece == None:
 284                         raise Exception("EMPTY")
 285
 286                 # If a piece is being moved, the third token is '->'
 287                 # We could get away with just using four integers, but that wouldn't look as cool
 288                 if "->" in s:
 289                         # Last two tokens are the destination
 290                         try:
 291                                 [x2,y2] = map(int, s[3:])
 292                         except:
 293                                 raise Exception("GIBBERISH \"" + str(result) + "\"") # Raise the alarm
 294
 295                         # Move the piece (take opponent if possible)
 296                         self.update_move(x, y, x2, y2)
 297
 298                 else:
 299                         # Otherwise we will just assume a piece has been selected
 300                         try:
 301                                 type_index = int(s[2]) # We need to know which of the two types the piece is in; that's the third token
 302                                 state = s[3] # The last token is a string identifying the type
 303                         except:
 304                                 raise Exception("GIBBERISH \"" + result + "\"") # Throw a hissy fit
 305
 306                         # Select the piece
 307                         self.update_select(x, y, type_index, state)
 308
 309                 return result
 310
 311         # Gets each piece that could reach the given square and the probability that it could reach that square
 312         # Will include allied pieces that defend the attacker
 313         def coverage(self, x, y, colour = None, reject_allied = True):
 314                 result = {}
 315
 316                 if colour == None:
 317                         pieces = self.pieces["white"] + self.pieces["black"]
 318                 else:
 319                         pieces = self.pieces[colour]
 320
 321                 for p in pieces:
 322                         prob = self.probability_grid(p, reject_allied)[x][y]
 323                         if prob > 0:
 324                                 result.update({p : prob})
 325
 326                 self.verify()
 327                 return result
 328
 329
 330
 331
 332
 333         # Associates each square with a probability that the piece could move into it
 334         # Look, I'm doing all the hard work for you here...
 335         def probability_grid(self, p, reject_allied = True):
 336
 337                 result = [[0.0] * w for _ in range(h)]
 338                 if not isinstance(p, Piece):
 339                         return result
 340
 341                 if p.current_type != "unknown":
 342                         #sys.stderr.write(sys.argv[0] + ": " + str(p) + " moves " + str(self.possible_moves(p, reject_allied)) + "\n")
 343                         for point in self.possible_moves(p, reject_allied):
 344                                 result[point[0]][point[1]] = 1.0
 345                         return result
 346
 347
 348                 for i in range(len(p.types)):
 349                         t = p.types[i]
 350                         prob = 0.5
 351                         if t == "unknown" or p.types_revealed[i] == False:
 352                                 total_types = 0
 353                                 for t2 in self.unrevealed_types[p.colour].keys():
 354                                         total_types += self.unrevealed_types[p.colour][t2]
 355
 356                                 for t2 in self.unrevealed_types[p.colour].keys():
 357                                         prob2 = float(self.unrevealed_types[p.colour][t2]) / float(total_types)
 358                                         p.current_type = t2
 359                                         for point in self.possible_moves(p, reject_allied):
 360                                                 result[point[0]][point[1]] += prob2 * prob
 361
 362                         else:
 363                                 p.current_type = t
 364                                 for point in self.possible_moves(p, reject_allied):
 365                                         result[point[0]][point[1]] += prob
 366
 367                 self.verify()
 368                 p.current_type = "unknown"
 369                 return result
 370
 371         def prob_is_type(self, p, state):
 372                 prob = 0.5
 373                 result = 0
 374                 for i in range(len(p.types)):
 375                         t = p.types[i]
 376                         if t == state:
 377                                 result += prob
 378                                 continue
 379                         if t == "unknown" or p.types_revealed[i] == False:
 380                                 total_prob = 0
 381                                 for t2 in self.unrevealed_types[p.colour].keys():
 382                                         total_prob += self.unrevealed_types[p.colour][t2]
 383                                 for t2 in self.unrevealed_types[p.colour].keys():
 384                                         if t2 == state:
 385                                                 result += prob * float(self.unrevealed_types[p.colour][t2]) / float(total_prob)
 386
 387
 388
 389         # Get all squares that the piece could move into
 390         # This is probably inefficient, but I looked at some sample chess games and they seem to actually do things this way
 391         # reject_allied indicates whether squares occupied by allied pieces will be removed
 392         # (set to false to check for defense)
 393         def possible_moves(self, p, reject_allied = True):
 394                 result = []
 395                 if p == None:
 396                         return result
 397
 398
 399                 if p.current_type == "unknown":
 400                         raise Exception("SANITY: Piece state unknown")
 401                         # The below commented out code causes things to break badly
 402                         #for t in p.types:
 403                         #       if t == "unknown":
 404                         #               continue
 405                         #       p.current_type = t
 406                         #       result += self.possible_moves(p)
 407                         #p.current_type = "unknown"
 408                         #return result
 409
 410                 if p.current_type == "king":
 411                         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]]
 412                 elif p.current_type == "queen":
 413                         for d in [[-1,0],[1,0],[0,-1],[0,1],[-1,-1],[-1,1],[1,-1],[1,1]]:
 414                                 result += self.scan(p.x, p.y, d[0], d[1])
 415                 elif p.current_type == "bishop":
 416                         for d in [[-1,-1],[-1,1],[1,-1],[1,1]]: # There's a reason why bishops move diagonally
 417                                 result += self.scan(p.x, p.y, d[0], d[1])
 418                 elif p.current_type == "rook":
 419                         for d in [[-1,0],[1,0],[0,-1],[0,1]]:
 420                                 result += self.scan(p.x, p.y, d[0], d[1])
 421                 elif p.current_type == "knight":
 422                         # I would use two lines, but I'm not sure how python likes that
 423                         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]]
 424                 elif p.current_type == "pawn":
 425                         if p.colour == "white":
 426
 427                                 # Pawn can't move forward into occupied square
 428                                 if self.on_board(p.x, p.y-1) and self.grid[p.x][p.y-1] == None:
 429                                         result = [[p.x,p.y-1]]
 430                                 for f in [[p.x-1,p.y-1],[p.x+1,p.y-1]]:
 431                                         if not self.on_board(f[0], f[1]):
 432                                                 continue
 433                                         if self.grid[f[0]][f[1]] != None:  # Pawn can take diagonally
 434                                                 result.append(f)
 435                                 if p.y == h-2:
 436                                         # Slightly embarrassing if the pawn jumps over someone on its first move...
 437                                         if self.grid[p.x][p.y-1] == None and self.grid[p.x][p.y-2] == None:
 438                                                 result.append([p.x, p.y-2])
 439                         else:
 440                                 # Vice versa for the black pawn
 441                                 if self.on_board(p.x, p.y+1) and self.grid[p.x][p.y+1] == None:
 442                                         result = [[p.x,p.y+1]]
 443
 444                                 for f in [[p.x-1,p.y+1],[p.x+1,p.y+1]]:
 445                                         if not self.on_board(f[0], f[1]):
 446                                                 continue
 447                                         if self.grid[f[0]][f[1]] != None:
 448                                                 #sys.stderr.write(sys.argv[0] + " : "+str(p) + " can take " + str(self.grid[f[0]][f[1]]) + "\n")
 449                                                 result.append(f)
 450                                 if p.y == 1:
 451                                         if self.grid[p.x][p.y+1] == None and self.grid[p.x][p.y+2] == None:
 452                                                 result.append([p.x, p.y+2])
 453
 454                         #sys.stderr.write(sys.argv[0] + " : possible_moves for " + str(p) + " " + str(result) + "\n")
 455
 456                 # Remove illegal moves
 457                 # Note: The result[:] creates a copy of result, so that the result.remove calls don't fuck things up
 458                 for point in result[:]:
 459
 460                         if (point[0] < 0 or point[0] >= w) or (point[1] < 0 or point[1] >= h):
 461                                 result.remove(point) # Remove locations outside the board
 462                                 continue
 463                         g = self.grid[point[0]][point[1]]
 464
 465                         if g != None and (g.colour == p.colour and reject_allied == True):
 466                                 result.remove(point) # Remove allied pieces
 467
 468                 self.verify()
 469                 return result
 470
 471
 472         # Scans in a direction until it hits a piece, returns all squares in the line
 473         # (includes the final square (which contains a piece), but not the original square)
 474         def scan(self, x, y, vx, vy):
 475                 p = []
 476
 477                 xx = x
 478                 yy = y
 479                 while True:
 480                         xx += vx
 481                         yy += vy
 482                         if not self.on_board(xx, yy):
 483                                 break
 484                         if not [xx,yy] in p:
 485                                 p.append([xx, yy])
 486                         g = self.grid[xx][yy]
 487                         if g != None:
 488                                 return p
 489
 490                 return p
 491
 492
 493
 494         # I typed the full statement about 30 times before writing this function...
 495         def on_board(self, x, y):
 496                 return (x >= 0 and x < w) and (y >= 0 and y < h)
 497 # --- board.py --- #
 498 # +++ player.py +++ #
 499 import subprocess
 500
 501
 502
 503 # A player who can't play
 504 class Player():
 505         def __init__(self, name, colour):
 506                 self.name = name
 507                 self.colour = colour
 508
 509 # Player that runs from another process
 510 class AgentPlayer(Player):
 511         def __init__(self, name, colour):
 512                 Player.__init__(self, name, colour)
 513                 self.p = subprocess.Popen(name, stdin=subprocess.PIPE, stdout=subprocess.PIPE,stderr=sys.stderr)
 514                 try:
 515                         self.p.stdin.write(colour + "\n")
 516                 except:
 517                         raise Exception("UNRESPONSIVE")
 518
 519         def select(self):
 520
 521                 #try:
 522                 self.p.stdin.write("SELECTION?\n")
 523                 line = self.p.stdout.readline().strip("\r\n ")
 524                 #except:
 525                 #       raise Exception("UNRESPONSIVE")
 526                 try:
 527                         result = map(int, line.split(" "))
 528                 except:
 529                         raise Exception("GIBBERISH \"" + str(line) + "\"")
 530                 return result
 531
 532         def update(self, result):
 533                 #print "Update " + str(result) + " called for AgentPlayer"
 534 #               try:
 535                 self.p.stdin.write(result + "\n")
 536 #               except:
 537 #               raise Exception("UNRESPONSIVE")
 538
 539         def get_move(self):
 540
 541                 try:
 542                         self.p.stdin.write("MOVE?\n")
 543                         line = self.p.stdout.readline().strip("\r\n ")
 544                 except:
 545                         raise Exception("UNRESPONSIVE")
 546                 try:
 547                         result = map(int, line.split(" "))
 548                 except:
 549                         raise Exception("GIBBERISH \"" + str(line) + "\"")
 550                 return result
 551
 552         def quit(self, final_result):
 553                 try:
 554                         self.p.stdin.write("QUIT " + final_result + "\n")
 555                 except:
 556                         self.p.kill()
 557
 558 # So you want to be a player here?
 559 class HumanPlayer(Player):
 560         def __init__(self, name, colour):
 561                 Player.__init__(self, name, colour)
 562
 563         # Select your preferred account
 564         def select(self):
 565                 if isinstance(graphics, GraphicsThread):
 566                         # Basically, we let the graphics thread do some shit and then return that information to the game thread
 567                         graphics.cond.acquire()
 568                         # We wait for the graphics thread to select a piece
 569                         while graphics.stopped() == False and graphics.state["select"] == None:
 570                                 graphics.cond.wait() # The difference between humans and machines is that humans sleep
 571                         select = graphics.state["select"]
 572
 573
 574                         graphics.cond.release()
 575                         if graphics.stopped():
 576                                 return [-1,-1]
 577                         return [select.x, select.y]
 578                 else:
 579                         # Since I don't display the board in this case, I'm not sure why I filled it in...
 580                         while True:
 581                                 sys.stdout.write("SELECTION?\n")
 582                                 try:
 583                                         p = map(int, sys.stdin.readline().strip("\r\n ").split(" "))
 584                                 except:
 585                                         sys.stderr.write("ILLEGAL GIBBERISH\n")
 586                                         continue
 587         # It's your move captain
 588         def get_move(self):
 589                 if isinstance(graphics, GraphicsThread):
 590                         graphics.cond.acquire()
 591                         while graphics.stopped() == False and graphics.state["dest"] == None:
 592                                 graphics.cond.wait()
 593                         graphics.cond.release()
 594
 595                         return graphics.state["dest"]
 596                 else:
 597
 598                         while True:
 599                                 sys.stdout.write("MOVE?\n")
 600                                 try:
 601                                         p = map(int, sys.stdin.readline().strip("\r\n ").split(" "))
 602                                 except:
 603                                         sys.stderr.write("ILLEGAL GIBBERISH\n")
 604                                         continue
 605
 606         # Are you sure you want to quit?
 607         def quit(self, final_result):
 608                 sys.stdout.write("QUIT " + final_result + "\n")
 609
 610         # Completely useless function
 611         def update(self, result):
 612                 if isinstance(graphics, GraphicsThread):
 613                         pass
 614                 else:
 615                         sys.stdout.write(result + "\n")
 616
 617
 618 # Player that makes random moves
 619 class AgentRandom(Player):
 620         def __init__(self, name, colour):
 621                 Player.__init__(self, name, colour)
 622                 self.choice = None
 623
 624                 self.board = Board(style = "agent")
 625
 626         def select(self):
 627                 while True:
 628                         self.choice = self.board.pieces[self.colour][random.randint(0, len(self.board.pieces[self.colour])-1)]
 629                         all_moves = []
 630                         # Check that the piece has some possibility to move
 631                         tmp = self.choice.current_type
 632                         if tmp == "unknown": # For unknown pieces, try both types
 633                                 for t in self.choice.types:
 634                                         if t == "unknown":
 635                                                 continue
 636                                         self.choice.current_type = t
 637                                         all_moves += self.board.possible_moves(self.choice)
 638                         else:
 639                                 all_moves = self.board.possible_moves(self.choice)
 640                         self.choice.current_type = tmp
 641                         if len(all_moves) > 0:
 642                                 break
 643                 return [self.choice.x, self.choice.y]
 644
 645         def get_move(self):
 646                 moves = self.board.possible_moves(self.choice)
 647                 move = moves[random.randint(0, len(moves)-1)]
 648                 return move
 649
 650         def update(self, result):
 651                 #sys.stderr.write(sys.argv[0] + " : Update board for AgentRandom\n")
 652                 self.board.update(result)
 653                 self.board.verify()
 654
 655         def quit(self, final_result):
 656                 pass
 657 # --- player.py --- #
 658 # +++ thread_util.py +++ #
 659 import threading
 660
 661 # A thread that can be stopped!
 662 # Except it can only be stopped if it checks self.stopped() periodically
 663 # So it can sort of be stopped
 664 class StoppableThread(threading.Thread):
 665         def __init__(self):
 666                 threading.Thread.__init__(self)
 667                 self._stop = threading.Event()
 668
 669         def stop(self):
 670                 self._stop.set()
 671
 672         def stopped(self):
 673                 return self._stop.isSet()
 674 # --- thread_util.py --- #
 675 # +++ game.py +++ #
 676
 677 # A thread that runs the game
 678 class GameThread(StoppableThread):
 679         def __init__(self, board, players):
 680                 StoppableThread.__init__(self)
 681                 self.board = board
 682                 self.players = players
 683                 self.state = {"turn" : None} # The game state
 684                 self.error = 0 # Whether the thread exits with an error
 685                 self.lock = threading.RLock() #lock for access of self.state
 686                 self.cond = threading.Condition() # conditional for some reason, I forgot
 687                 self.final_result = ""
 688
 689         # Run the game (run in new thread with start(), run in current thread with run())
 690         def run(self):
 691                 result = ""
 692                 while not self.stopped():
 693
 694                         for p in self.players:
 695                                 with self.lock:
 696                                         self.state["turn"] = p # "turn" contains the player who's turn it is
 697                                 #try:
 698                                 if True:
 699                                         [x,y] = p.select() # Player selects a square
 700                                         if self.stopped():
 701                                                 break
 702
 703                                         result = self.board.select(x, y, colour = p.colour)
 704                                         for p2 in self.players:
 705                                                 p2.update(result) # Inform players of what happened
 706
 707
 708
 709                                         target = self.board.grid[x][y]
 710                                         if isinstance(graphics, GraphicsThread):
 711                                                 with graphics.lock:
 712                                                         graphics.state["moves"] = self.board.possible_moves(target)
 713                                                         graphics.state["select"] = target
 714
 715                                         time.sleep(turn_delay)
 716
 717
 718                                         if len(self.board.possible_moves(target)) == 0:
 719                                                 #print "Piece cannot move"
 720                                                 target.deselect()
 721                                                 if isinstance(graphics, GraphicsThread):
 722                                                         with graphics.lock:
 723                                                                 graphics.state["moves"] = None
 724                                                                 graphics.state["select"] = None
 725                                                                 graphics.state["dest"] = None
 726                                                 continue
 727
 728                                         try:
 729                                                 [x2,y2] = p.get_move() # Player selects a destination
 730                                         except:
 731                                                 self.stop()
 732
 733                                         if self.stopped():
 734                                                 break
 735
 736                                         result = self.board.update_move(x, y, x2, y2)
 737                                         for p2 in self.players:
 738                                                 p2.update(str(x) + " " + str(y) + " -> " + str(x2) + " " + str(y2)) # Inform players of what happened
 739
 740                                         if isinstance(graphics, GraphicsThread):
 741                                                 with graphics.lock:
 742                                                         graphics.state["moves"] = [[x2,y2]]
 743
 744                                         time.sleep(turn_delay)
 745
 746                                         if isinstance(graphics, GraphicsThread):
 747                                                 with graphics.lock:
 748                                                         graphics.state["select"] = None
 749                                                         graphics.state["dest"] = None
 750                                                         graphics.state["moves"] = None
 751
 752                         # Commented out exception stuff for now, because it makes it impossible to tell if I made an IndentationError somewhere
 753                                 #except Exception,e:
 754                                         #result = "ILLEGAL " + e.message
 755                                         #sys.stderr.write(result + "\n")
 756
 757                                         #self.stop()
 758                                         #with self.lock:
 759                                         #       self.final_result = self.state["turn"].colour + " " + "ILLEGAL"
 760
 761                                 if self.board.king["black"] == None:
 762                                         if self.board.king["white"] == None:
 763                                                 with self.lock:
 764                                                         self.final_result = "DRAW"
 765                                         else:
 766                                                 with self.lock:
 767                                                         self.final_result = "white"
 768                                         self.stop()
 769                                 elif self.board.king["white"] == None:
 770                                         with self.lock:
 771                                                 self.final_result = "black"
 772                                         self.stop()
 773
 774
 775                                 if self.stopped():
 776                                         break
 777
 778
 779                 for p2 in self.players:
 780                         p2.quit(self.final_result)
 781
 782                 graphics.stop()
 783
 784
 785
 786
 787 def opponent(colour):
 788         if colour == "white":
 789                 return "black"
 790         else:
 791                 return "white"
 792 # --- game.py --- #
 793 # +++ graphics.py +++ #
 794 import pygame
 795
 796 # Dictionary that stores the unicode character representations of the different pieces
 797 # Chess was clearly the reason why unicode was invented
 798 # For some reason none of the pygame chess implementations I found used them!
 799 piece_char = {"white" : {"king" : u'\u2654',
 800                          "queen" : u'\u2655',
 801                          "rook" : u'\u2656',
 802                          "bishop" : u'\u2657',
 803                          "knight" : u'\u2658',
 804                          "pawn" : u'\u2659',
 805                          "unknown" : '?'},
 806                 "black" : {"king" : u'\u265A',
 807                          "queen" : u'\u265B',
 808                          "rook" : u'\u265C',
 809                          "bishop" : u'\u265D',
 810                          "knight" : u'\u265E',
 811                          "pawn" : u'\u265F',
 812                          "unknown" : '?'}}
 813
 814 images = {"white" : {}, "black" : {}}
 815 small_images = {"white" : {}, "black" : {}}
 816
 817 # A thread to make things pretty
 818 class GraphicsThread(StoppableThread):
 819         def __init__(self, board, title = "UCC::Progcomp 2013 - QChess", grid_sz = [80,80]):
 820                 StoppableThread.__init__(self)
 821
 822                 self.board = board
 823                 pygame.init()
 824                 self.window = pygame.display.set_mode((grid_sz[0] * w, grid_sz[1] * h))
 825                 pygame.display.set_caption(title)
 826                 self.grid_sz = grid_sz[:]
 827                 self.state = {"select" : None, "dest" : None, "moves" : None, "overlay" : None, "coverage" : None}
 828                 self.error = 0
 829                 self.lock = threading.RLock()
 830                 self.cond = threading.Condition()
 831
 832                 # Get the font sizes
 833                 l_size = 5*(self.grid_sz[0] / 8)
 834                 s_size = 3*(self.grid_sz[0] / 8)
 835                 for p in piece_types.keys():
 836                         c = "black"
 837                         images[c].update({p : pygame.font.Font("data/DejaVuSans.ttf", l_size).render(piece_char[c][p], True,(0,0,0))})
 838                         small_images[c].update({p : pygame.font.Font("data/DejaVuSans.ttf", s_size).render(piece_char[c][p],True,(0,0,0))})
 839                         c = "white"
 840
 841                         images[c].update({p : pygame.font.Font("data/DejaVuSans.ttf", l_size+1).render(piece_char["black"][p], True,(255,255,255))})
 842                         images[c][p].blit(pygame.font.Font("data/DejaVuSans.ttf", l_size).render(piece_char[c][p], True,(0,0,0)),(0,0))
 843                         small_images[c].update({p : pygame.font.Font("data/DejaVuSans.ttf", s_size+1).render(piece_char["black"][p],True,(255,255,255))})
 844                         small_images[c][p].blit(pygame.font.Font("data/DejaVuSans.ttf", s_size).render(piece_char[c][p],True,(0,0,0)),(0,0))
 845
 846
 847
 848
 849
 850         # On the run from the world
 851         def run(self):
 852
 853                 while not self.stopped():
 854
 855                         self.board.display_grid(window = self.window, grid_sz = self.grid_sz) # Draw the board
 856
 857                         self.overlay()
 858
 859                         self.board.display_pieces(window = self.window, grid_sz = self.grid_sz) # Draw the board
 860
 861                         pygame.display.flip()
 862
 863                         for event in pygame.event.get():
 864                                 if event.type == pygame.QUIT:
 865                                         if isinstance(game, GameThread):
 866                                                 with game.lock:
 867                                                         game.final_result = "terminated"
 868                                                 game.stop()
 869                                         self.stop()
 870                                         break
 871                                 elif event.type == pygame.MOUSEBUTTONDOWN:
 872                                         self.mouse_down(event)
 873                                 elif event.type == pygame.MOUSEBUTTONUP:
 874                                         self.mouse_up(event)
 875
 876
 877
 878
 879
 880
 881                 self.message("Game ends, result \""+str(game.final_result) + "\"")
 882                 time.sleep(1)
 883
 884                 # Wake up anyone who is sleeping
 885                 self.cond.acquire()
 886                 self.cond.notify()
 887                 self.cond.release()
 888
 889                 pygame.quit() # Time to say goodbye
 890
 891         # Mouse release event handler
 892         def mouse_up(self, event):
 893                 if event.button == 3:
 894                         with self.lock:
 895                                 self.state["overlay"] = None
 896                 elif event.button == 2:
 897                         with self.lock:
 898                                 self.state["coverage"] = None
 899
 900         # Mouse click event handler
 901         def mouse_down(self, event):
 902                 if event.button == 1:
 903                         m = [event.pos[i] / self.grid_sz[i] for i in range(2)]
 904                         if isinstance(game, GameThread):
 905                                 with game.lock:
 906                                         p = game.state["turn"]
 907                         else:
 908                                         p = None
 909
 910
 911                         if isinstance(p, HumanPlayer):
 912                                 with self.lock:
 913                                         s = self.board.grid[m[0]][m[1]]
 914                                         select = self.state["select"]
 915                                 if select == None:
 916                                         if s != None and s.colour != p.colour:
 917                                                 self.message("Wrong colour") # Look at all this user friendliness!
 918                                                 time.sleep(1)
 919                                                 return
 920                                         # Notify human player of move
 921                                         self.cond.acquire()
 922                                         with self.lock:
 923                                                 self.state["select"] = s
 924                                                 self.state["dest"] = None
 925                                         self.cond.notify()
 926                                         self.cond.release()
 927                                         return
 928
 929                                 if select == None:
 930                                         return
 931
 932
 933                                 if self.state["moves"] == None:
 934                                         return
 935
 936                                 if not m in self.state["moves"]:
 937                                         self.message("Illegal Move") # I still think last year's mouse interface was adequate
 938                                         time.sleep(2)
 939                                         return
 940
 941                                 with self.lock:
 942                                         if self.state["dest"] == None:
 943                                                 self.cond.acquire()
 944                                                 self.state["dest"] = m
 945                                                 self.state["select"] = None
 946                                                 self.state["moves"] = None
 947                                                 self.cond.notify()
 948                                                 self.cond.release()
 949                 elif event.button == 3:
 950                         m = [event.pos[i] / self.grid_sz[i] for i in range(len(event.pos))]
 951                         if isinstance(game, GameThread):
 952                                 with game.lock:
 953                                         p = game.state["turn"]
 954                         else:
 955                                 p = None
 956
 957
 958                         if isinstance(p, HumanPlayer):
 959                                 with self.lock:
 960                                         self.state["overlay"] = self.board.probability_grid(self.board.grid[m[0]][m[1]])
 961
 962                 elif event.button == 2:
 963                         m = [event.pos[i] / self.grid_sz[i] for i in range(len(event.pos))]
 964                         if isinstance(game, GameThread):
 965                                 with game.lock:
 966                                         p = game.state["turn"]
 967                         else:
 968                                 p = None
 969
 970
 971                         if isinstance(p, HumanPlayer):
 972                                 with self.lock:
 973                                         self.state["coverage"] = self.board.coverage(m[0], m[1], None, self.state["select"])
 974
 975         # Draw the overlay
 976         def overlay(self):
 977
 978                 square_img = pygame.Surface((self.grid_sz[0], self.grid_sz[1]),pygame.SRCALPHA) # A square image
 979                 # Draw square over the selected piece
 980                 with self.lock:
 981                         select = self.state["select"]
 982                 if select != None:
 983                         mp = [self.grid_sz[i] * [select.x, select.y][i] for i in range(len(self.grid_sz))]
 984                         square_img.fill(pygame.Color(0,255,0,64))
 985                         self.window.blit(square_img, mp)
 986                 # If a piece is selected, draw all reachable squares
 987                 # (This quality user interface has been patented)
 988                 with self.lock:
 989                         m = self.state["moves"]
 990                 if m != None:
 991                         square_img.fill(pygame.Color(255,0,0,128)) # Draw them in blood red
 992                         for move in m:
 993                                 mp = [self.grid_sz[i] * move[i] for i in range(2)]
 994                                 self.window.blit(square_img, mp)
 995                 # If a piece is overlayed, show all squares that it has a probability to reach
 996                 with self.lock:
 997                         m = self.state["overlay"]
 998                 if m != None:
 999                         for x in range(w):
1000                                 for y in range(h):
1001                                         if m[x][y] > 0.0:
1002                                                 mp = [self.grid_sz[i] * [x,y][i] for i in range(2)]
1003                                                 square_img.fill(pygame.Color(255,0,255,int(m[x][y] * 128))) # Draw in purple
1004                                                 self.window.blit(square_img, mp)
1005                                                 font = pygame.font.Font(None, 14)
1006                                                 text = font.render("{0:.2f}".format(round(m[x][y],2)), 1, pygame.Color(0,0,0))
1007                                                 self.window.blit(text, mp)
1008
1009                 # If a square is selected, highlight all pieces that have a probability to reach it
1010                 with self.lock:
1011                         m = self.state["coverage"]
1012                 if m != None:
1013                         for p in m:
1014                                 mp = [self.grid_sz[i] * [p.x,p.y][i] for i in range(2)]
1015                                 square_img.fill(pygame.Color(0,255,255, int(m[p] * 196))) # Draw in pale blue
1016                                 self.window.blit(square_img, mp)
1017                                 font = pygame.font.Font(None, 14)
1018                                 text = font.render("{0:.2f}".format(round(m[p],2)), 1, pygame.Color(0,0,0))
1019                                 self.window.blit(text, mp)
1020                         # Draw a square where the mouse is
1021                 # This also serves to indicate who's turn it is
1022
1023                 if isinstance(game, GameThread):
1024                         with game.lock:
1025                                 turn = game.state["turn"]
1026                 else:
1027                         turn = None
1028
1029                 if isinstance(turn, HumanPlayer):
1030                         mp = [self.grid_sz[i] * int(pygame.mouse.get_pos()[i] / self.grid_sz[i]) for i in range(2)]
1031                         square_img.fill(pygame.Color(0,0,255,128))
1032                         if turn.colour == "white":
1033                                 c = pygame.Color(255,255,255)
1034                         else:
1035                                 c = pygame.Color(0,0,0)
1036                         pygame.draw.rect(square_img, c, (0,0,self.grid_sz[0], self.grid_sz[1]), self.grid_sz[0]/10)
1037                         self.window.blit(square_img, mp)
1038
1039         # Message in a bottle
1040         def message(self, string, pos = None, colour = None, font_size = 32):
1041                 font = pygame.font.Font(None, font_size)
1042                 if colour == None:
1043                         colour = pygame.Color(0,0,0)
1044
1045                 text = font.render(string, 1, colour)
1046
1047
1048                 s = pygame.Surface((text.get_width(), text.get_height()), pygame.SRCALPHA)
1049                 s.fill(pygame.Color(128,128,128))
1050
1051                 tmp = self.window.get_size()
1052
1053                 if pos == None:
1054                         pos = (tmp[0] / 2 - text.get_width() / 2, tmp[1] / 3 - text.get_height())
1055                 else:
1056                         pos = (pos[0]*text.get_width() + tmp[0] / 2 - text.get_width() / 2, pos[1]*text.get_height() + tmp[1] / 3 - text.get_height())
1057
1058
1059                 rect = (pos[0], pos[1], text.get_width(), text.get_height())
1060
1061                 pygame.draw.rect(self.window, pygame.Color(0,0,0), pygame.Rect(rect), 1)
1062                 self.window.blit(s, pos)
1063                 self.window.blit(text, pos)
1064
1065                 pygame.display.flip()
1066
1067         def getstr(self, prompt = None):
1068                 result = ""
1069                 while True:
1070                         #print "LOOP"
1071                         if prompt != None:
1072                                 self.message(prompt)
1073                                 self.message(result, pos = (0, 1))
1074
1075                         for event in pygame.event.get():
1076                                 if event.type == pygame.KEYDOWN:
1077                                         if chr(event.key) == '\r':
1078                                                 return result
1079                                         result += str(chr(event.key))
1080 # --- graphics.py --- #
1081 # +++ main.py +++ #
1082 #!/usr/bin/python -u
1083
1084 # Do you know what the -u does? It unbuffers stdin and stdout
1085 # I can't remember why, but last year things broke without that
1086
1087 """
1088         UCC::Progcomp 2013 Quantum Chess game
1089         @author Sam Moore [SZM] "matches"
1090         @copyright The University Computer Club, Incorporated
1091                 (ie: You can copy it for not for profit purposes)
1092 """
1093
1094 # system python modules or whatever they are called
1095 import sys
1096 import os
1097 import time
1098
1099 turn_delay = 0.5
1100 [game, graphics] = [None, None]
1101
1102
1103 # The main function! It does the main stuff!
1104 def main(argv):
1105
1106         # Apparently python will silently treat things as local unless you do this
1107         # But (here's the fun part), only if you actually modify the variable.
1108         # For example, all those 'if graphics_enabled' conditions work in functions that never say it is global
1109         # Anyone who says "You should never use a global variable" can die in a fire
1110         global game
1111         global graphics
1112
1113         # Magical argument parsing goes here
1114         if len(argv) == 1:
1115                 players = [HumanPlayer("saruman", "white"), AgentRandom("sabbath", "black")]
1116         elif len(argv) == 2:
1117                 players = [AgentPlayer(argv[1], "white"), HumanPlayer("shadow", "black"), ]
1118         elif len(argv) == 3:
1119                 players = [AgentPlayer(argv[1], "white"), AgentPlayer(argv[2], "black")]
1120
1121         # Construct the board!
1122         board = Board(style = "quantum")
1123         game = GameThread(board, players) # Construct a GameThread! Make it global! Damn the consequences!
1124         #try:
1125         if True:
1126                 graphics = GraphicsThread(board, grid_sz = [64,64]) # Construct a GraphicsThread! I KNOW WHAT I'M DOING! BEAR WITH ME!
1127                 game.start() # This runs in a new thread
1128         #except NameError:
1129         #       print "Run game in main thread"
1130         #       game.run() # Run game in the main thread (no need for joining)
1131         #       return game.error
1132         #except Exception, e:
1133         #       raise e
1134         #else:
1135         #       print "Normal"
1136                 graphics.run()
1137                 game.join()
1138                 return game.error + graphics.error
1139
1140
1141 # This is how python does a main() function...
1142 if __name__ == "__main__":
1143         sys.exit(main(sys.argv))
1144 # --- main.py --- #
1145 # EOF - created from update.sh on Wed Jan 23 22:01:52 WST 2013