| 1 | """A Gomocup brain that weighs every empty point near the stones by the lines it would make for itself and the lines it |
| 2 | would break for the other side (open and closed twos, threes and fours), and plays the heaviest.""" |
| 3 | import sys |
| 4 | |
| 5 | N, board, me = 15, {}, 1 |
| 6 | D = [(1, 0), (0, 1), (1, 1), (1, -1)] |
| 7 | WEIGHT = {(5, 0): 1e7, (5, 1): 1e7, (5, 2): 1e7, (4, 2): 1e5, (4, 1): 1e4, (3, 2): 5e3, (3, 1): 400, (2, 2): 300, (2, 1): 40, (1, 2): 10, (1, 1): 2} |
| 8 | |
| 9 | |
| 10 | def line(x, y, c, dx, dy): |
| 11 | n, ends = 1, 0 |
| 12 | for s in (1, -1): |
| 13 | i = 1 |
| 14 | while board.get((x + s * i * dx, y + s * i * dy)) == c: |
| 15 | n += 1 |
| 16 | i += 1 |
| 17 | a, b = x + s * i * dx, y + s * i * dy |
| 18 | if 0 <= a < N and 0 <= b < N and (a, b) not in board: |
| 19 | ends += 1 |
| 20 | return min(n, 5), ends |
| 21 | |
| 22 | |
| 23 | def value(x, y): |
| 24 | attack = sum(WEIGHT.get(line(x, y, me, dx, dy), 0) for dx, dy in D) |
| 25 | defend = sum(WEIGHT.get(line(x, y, 3 - me, dx, dy), 0) for dx, dy in D) |
| 26 | return attack * 1.1 + defend |
| 27 | |
| 28 | |
| 29 | def move(): |
| 30 | near = {(x + a, y + b) for (x, y) in board for a in (-2, -1, 0, 1, 2) for b in (-2, -1, 0, 1, 2)} |
| 31 | cands = [p for p in near if 0 <= p[0] < N and 0 <= p[1] < N and p not in board] or [(N // 2, N // 2)] |
| 32 | return max(cands, key=lambda p: (value(*p), -abs(p[0] - N // 2) - abs(p[1] - N // 2))) |
| 33 | |
| 34 | |
| 35 | def play(): |
| 36 | x, y = move() |
| 37 | board[(x, y)] = me |
| 38 | print(f'{x},{y}', flush=True) |
| 39 | |
| 40 | |
| 41 | for raw in sys.stdin: |
| 42 | cmd, _, arg = raw.strip().partition(' ') |
| 43 | cmd = cmd.upper() |
| 44 | if cmd == 'START': |
| 45 | N = int(arg) |
| 46 | board.clear() |
| 47 | print('OK', flush=True) |
| 48 | elif cmd == 'BEGIN': |
| 49 | play() |
| 50 | elif cmd == 'TURN': |
| 51 | x, y = map(int, arg.split(',')) |
| 52 | board[(x, y)] = 2 |
| 53 | play() |
| 54 | elif cmd == 'BOARD': |
| 55 | for l in sys.stdin: |
| 56 | if l.strip().upper() == 'DONE': |
| 57 | break |
| 58 | x, y, f = map(int, l.split(',')) |
| 59 | board[(x, y)] = 1 if f == 1 else 2 |
| 60 | play() |
| 61 | elif cmd == 'ABOUT': |
| 62 | print('name="threats", version="1", author="shoal-games"', flush=True) |
| 63 | elif cmd == 'END': |
| 64 | break |
| 65 | elif cmd not in ('INFO', 'RESTART'): |
| 66 | print('UNKNOWN', flush=True) |
shoal