def alpha_beta_timed(self,c4_orig,depth): stime = time.time() c4temp = c4() self.c4h = c4h() c4temp.board = c4_orig.copy_board() c4temp.mode = c4_orig.mode c4temp.turn = c4_orig.turn c4temp.potgames = [] turn = c4temp.turn mode = c4temp.mode for i in range(0,c4temp.xmax): #x = [i for i in range(c4temp.xmax)] #random.shuffle(x) #for i2 in x: c4temp.potgames.append(c4()) i = len(c4temp.potgames) - 1 c4temp.potgames[i].board = c4temp.copy_board() c4temp.potgames[i].turn = turn c4temp.potgames[i].mode = mode c4temp.potgames[i].sim = True if c4temp.potgames[i].play_piece(i): c4temp.potgames[i].turn = (turn + 1) % 2 self.run_time = time.time() - self.start_time #if depth < self.maxd and not c4temp.potgames[i].is_winner(): #run_time gets a little ahead, this comparison works if (not self.times_up(depth,c4temp.xmax) #and depth < self.maxd and not c4temp.potgames[i].is_winner()): c4temp.potgames[i].hval = self.alpha_beta_timed(c4temp.potgames[i],depth + 1)[0] else: c4temp.potgames[i].hval = self.c4h.h2(c4temp.potgames[i],i,(turn + 1) == c4temp.red) if depth == 0: print "Board %d, depth %d, turn: %d, time: %f".rjust(37 + depth + 1) % (i,depth, c4temp.potgames[i].turn + 1,self.run_time) print " hval: %d".rjust(9 + depth) % (c4temp.potgames[i].hval) #c4temp.potgames[i].print_board() #pruning if (c4temp.potgames[i].hval == 1 and (turn + 1) == c4temp.black): #my move return (1,i) if (c4temp.potgames[i].hval == -1 and (turn + 1) == c4temp.red): #opp move return (-1,i) #end pruning else: #if not potgame[i].play_piece(i) if (turn + 1) == c4temp.black: c4temp.potgames[i].hval = -2 elif (turn + 1) == c4temp.red: c4temp.potgames[i].hval = 2 etime = time.time() rtime = etime - stime #print "Depth %d" % (depth) #print "run time: %f" % (rtime) if (turn + 1) == c4temp.black: pass #print "My move, max: %d" % self.max_h(c4temp.potgames)[1] return(self.max_h(c4temp.potgames)) elif (turn + 1) == c4temp.red: pass #print "Opp move, max: %d" % self.max_h(c4temp.potgames)[1] return(self.min_h(c4temp.potgames))
def __init__(self): self.c4temp = c4() self.c4h = c4h() #seconds self.maxd = 4 # 0 - n #for alpha_beta_timed self.time_limit = 30 self.total_turns = 1
def alpha_beta(self,c4_orig,depth): stime = time.time() c4temp = c4() self.c4h = c4h() c4temp.board = c4_orig.copy_board() c4temp.mode = c4_orig.mode c4temp.turn = c4_orig.turn c4temp.potgames = [] turn = c4temp.turn mode = c4temp.mode for i in range(0,c4temp.xmax): c4temp.potgames.append(c4()) c4temp.potgames[i].board = c4temp.copy_board() c4temp.potgames[i].turn = turn c4temp.potgames[i].mode = mode c4temp.potgames[i].sim = True if c4temp.potgames[i].play_piece(i): c4temp.potgames[i].turn = (turn + 1) % 2 if depth < self.maxd and not c4temp.potgames[i].is_winner(): c4temp.potgames[i].hval = self.alpha_beta(c4temp.potgames[i],depth + 1)[0] else: c4temp.potgames[i].hval = self.c4h.h2(c4temp.potgames[i],i,(turn + 1) == c4temp.red) if depth == 0: print "Board %d, depth %d, turn: %d".rjust(27 + depth + 1) % (i,depth, c4temp.potgames[i].turn + 1) print " hval: %d".rjust(9 + depth) % (c4temp.potgames[i].hval) #c4temp.potgames[i].print_board() #pruning if (c4temp.potgames[i].hval == 1 and (turn + 1) == c4temp.black): #my move return (1,i) if (c4temp.potgames[i].hval == -1 and (turn + 1) == c4temp.red): #opp move return (-1,i) #end pruning else: #if not potgame[i].play_piece(i) if (turn + 1) == c4temp.black: c4temp.potgames[i].hval = -2 elif (turn + 1) == c4temp.red: c4temp.potgames[i].hval = 2 etime = time.time() rtime = etime - stime #print "Depth %d" % (depth) #print "run time: %f" % (rtime) if (turn + 1) == c4temp.black: pass #print "My move, max: %d" % self.max_h(c4temp.potgames)[1] return(self.max_h(c4temp.potgames)) elif (turn + 1) == c4temp.red: pass #print "Opp move, max: %d" % self.max_h(c4temp.potgames)[1] return(self.min_h(c4temp.potgames))
