def update(self, game_state): # relative bc = board_chunk(game_state) bc.gen_relative(game_state.this_move[0], game_state.this_move[1]) if bc.has_corner(): self.tables_corner.update(game_state, bc) elif bc.has_side(): self.tables_side.update(game_state, bc) else: self.tables_open.update(game_state, bc) # absolute bc = board_chunk(game_state) bc.gen_absolute(game_state.this_move[0], game_state.this_move[1]) if bc.has_corner(): self.tables_corner.update(game_state, bc) elif bc.has_side(): self.tables_side.update(game_state, bc) else: self.tables_open.update(game_state, bc)
def get_best_move(self, game_state, color): # pass if the other player does if ( game_state != None and game_state.last_move != None and game_state.last_move[-4:] == "PASS" ): return color + ":PASS" # get the scores for each move best_move = False best_score = -100 # check each absolute chunk (9 of them, each with 9 states) for the # whole board, and check the relative chunk for the last move to # decide where the next move should be # absolute chunks for i in xrange(0, game_state.size/game_state.chunk_size_absolute): for j in xrange(0, game_state.size/game_state.chunk_size_absolute ): move_changed = False # get the chunk bc = board_chunk(game_state) bc.gen_absolute( i*game_state.chunk_size_absolute, j*game_state.chunk_size_absolute ) # corner chunk if bc.has_corner(): (lbest_move,lbest_score) = self.__get_chunk_best( game_state, color, bc, self.tables_corner ) if lbest_score > best_score: best_move = lbest_move best_score = lbest_score move_changed = True # side chunk elif bc.has_side(): (lbest_move,lbest_score) = self.__get_chunk_best( game_state, color, bc, self.tables_side ) if lbest_score > best_score: best_move = lbest_move best_score = lbest_score move_changed = True # open chunk else: (lbest_move,lbest_score) = self.__get_chunk_best( game_state, color, bc, self.tables_open ) if lbest_score > best_score: best_move = lbest_move best_score = lbest_score move_changed = True if move_changed: # translate move to be back in the real position rather than # relative to the translation bc.untranslate() best_move = bc.get_absolute_position( best_move[0], best_move[1] ) # if the move is an illegal move, just choose a random move # with liberties while game_state.board[best_move[1]][best_move[0]] != ".": rx = random.randrange(0, game_state.size) ry = random.randrange(0, game_state.size) if game_state.board[ry][rx] == ".": game_state.board[ry][rx] = color libs = game_state.count_liberties(rx,ry)[1] game_state.board[ry][rx] = "." if libs != 0: best_move = (rx,ry) best_score = -100 # relative chunk if game_state.this_move != None: (x,y) = game_state.this_move bc = board_chunk(game_state) bc.gen_relative(x,y) # corner chunk if bc.has_corner(): (lbest_move,lbest_score) = self.__get_chunk_best( game_state, color, bc, self.tables_corner ) # side chunk elif bc.has_side(): (lbest_move,lbest_score) = self.__get_chunk_best( game_state, color, bc, self.tables_side ) # open chunk else: (lbest_move,lbest_score) = self.__get_chunk_best( game_state, color, bc, self.tables_open ) # update if necessary if lbest_score > best_score: best_score = lbest_score best_move = lbest_move bc.untranslate() best_move = bc.get_absolute_position( best_move[0], best_move[1] ) return best_move
