def test_collide(self, new_game):
b = Game(MockKaTrain(force_package_config=True), MockEngine(), move_tree=new_game)
b.play(Move.from_gtp("B9", player="B"))
with pytest.raises(IllegalMoveException):
b.play(Move.from_gtp("B9", player="W"))
assert 1 == len(self.nonempty_chains(b))
assert 1 == len(b.stones)
assert 0 == len(b.prisoners)
def test_merge(self):
b = Game(MockKaTrain(), MockEngine())
b.play(Move.from_gtp("B9", player="B"))
b.play(Move.from_gtp("A3", player="B"))
b.play(Move.from_gtp("A9", player="B"))
assert 2 == len(self.nonempty_chains(b))
assert 3 == len(b.stones)
assert 0 == len(b.prisoners)
def test_collide(self):
b = Game(MockKaTrain(), MockEngine())
b.play(Move.from_gtp("B9", player="B"))
with pytest.raises(IllegalMoveException):
b.play(Move.from_gtp("B9", player="W"))
assert 1 == len(self.nonempty_chains(b))
assert 1 == len(b.stones)
assert 0 == len(b.prisoners)
def test_merge(self, new_game):
b = Game(MockKaTrain(force_package_config=True), MockEngine(), move_tree=new_game)
b.play(Move.from_gtp("B9", player="B"))
b.play(Move.from_gtp("A3", player="B"))
b.play(Move.from_gtp("A9", player="B"))
assert 2 == len(self.nonempty_chains(b))
assert 3 == len(b.stones)
assert 0 == len(b.prisoners)
def test_ko(self, new_game):
b = Game(MockKaTrain(force_package_config=True),
MockEngine(),
move_tree=new_game)
for move in ["A2", "B1"]:
b.play(Move.from_gtp(move, player="B"))
for move in ["B2", "C1"]:
b.play(Move.from_gtp(move, player="W"))
b.play(Move.from_gtp("A1", player="W"))
assert 4 == len(self.nonempty_chains(b))
assert 4 == len(b.stones)
assert 1 == len(b.prisoners)
with pytest.raises(IllegalMoveException) as exc:
b.play(Move.from_gtp("B1", player="B"))
assert "Ko" in str(exc.value)
b.play(Move.from_gtp("B1", player="B"), ignore_ko=True)
assert 2 == len(b.prisoners)
with pytest.raises(IllegalMoveException) as exc:
b.play(Move.from_gtp("A1", player="W"))
b.play(Move.from_gtp("F1", player="W"))
b.play(Move(coords=None, player="B"))
b.play(Move.from_gtp("A1", player="W"))
assert 3 == len(b.prisoners)
def draw_pv(self, pv, node, up_to_move):
katrain = self.katrain
next_last_player = [node.next_player, node.player]
stone_color = STONE_COLORS
cn = katrain.game.current_node
if node != cn and node.parent != cn:
hide_node = cn
while hide_node and hide_node.move and hide_node != node:
if not hide_node.move.is_pass:
self.draw_stone(*hide_node.move.coords, [0.85, 0.68, 0.40, 0.8]) # board coloured dot
hide_node = hide_node.parent
for i, gtpmove in enumerate(pv):
if i > up_to_move:
return
move_player = next_last_player[i % 2]
opp_player = next_last_player[1 - i % 2]
coords = Move.from_gtp(gtpmove).coords
if coords is None: # tee-hee
sizefac = katrain.board_controls.pass_btn.size[1] / 2 / self.stone_size
board_coords = [
katrain.board_controls.pass_btn.pos[0]
+ katrain.board_controls.pass_btn.size[0]
+ self.stone_size * sizefac,
katrain.board_controls.pass_btn.pos[1] + katrain.board_controls.pass_btn.size[1] / 2,
]
else:
board_coords = (self.gridpos_x[coords[0]], self.gridpos_y[coords[1]])
sizefac = 1
draw_circle(board_coords, self.stone_size * sizefac, stone_color[move_player])
Color(*stone_color[opp_player])
draw_text(pos=board_coords, text=str(i + 1), font_size=self.grid_size * sizefac / 1.45, font_name="Roboto")
def test_snapback(self, new_game):
b = Game(MockKaTrain(force_package_config=True), MockEngine(), move_tree=new_game)
for move in ["C1", "D1", "E1", "C2", "D3", "E4", "F2", "F3", "F4"]:
b.play(Move.from_gtp(move, player="B"))
for move in ["D2", "E2", "C3", "D4", "C4"]:
b.play(Move.from_gtp(move, player="W"))
assert 5 == len(self.nonempty_chains(b))
assert 14 == len(b.stones)
assert 0 == len(b.prisoners)
b.play(Move.from_gtp("E3", player="W"))
assert 4 == len(self.nonempty_chains(b))
assert 14 == len(b.stones)
assert 1 == len(b.prisoners)
b.play(Move.from_gtp("D3", player="B"))
assert 4 == len(self.nonempty_chains(b))
assert 12 == len(b.stones)
assert 4 == len(b.prisoners)
def draw_pv(self, pv, node, up_to_move):
katrain = self.katrain
next_last_player = [
node.next_player,
Move.opponent_player(node.next_player)
]
cn = katrain.game.current_node
if node != cn and node.parent != cn:
hide_node = cn
while hide_node and hide_node.move and hide_node != node:
if not hide_node.move.is_pass:
pos = (self.gridpos_x[hide_node.move.coords[0]],
self.gridpos_y[hide_node.move.coords[1]])
draw_circle(pos, self.stone_size, [0.85, 0.68, 0.40, 0.8])
hide_node = hide_node.parent
for i, gtpmove in enumerate(pv):
if i > up_to_move:
return
move_player = next_last_player[i % 2]
coords = Move.from_gtp(gtpmove).coords
if coords is None: # tee-hee
sizefac = katrain.board_controls.pass_btn.size[
1] / 2 / self.stone_size
board_coords = [
katrain.board_controls.pass_btn.pos[0] +
katrain.board_controls.pass_btn.size[0] +
self.stone_size * sizefac,
katrain.board_controls.pass_btn.pos[1] +
katrain.board_controls.pass_btn.size[1] / 2,
]
else:
board_coords = (self.gridpos_x[coords[0]],
self.gridpos_y[coords[1]])
sizefac = 1
stone_size = self.stone_size * sizefac
Color(1, 1, 1, 1)
Rectangle( # not sure why the -1 here, but seems to center better
pos=(board_coords[0] - stone_size - 1,
board_coords[1] - stone_size),
size=(2 * stone_size + 1, 2 * stone_size + 1),
texture=cached_texture(Theme.STONE_TEXTURE[move_player]),
)
Color(*Theme.PV_TEXT_COLORS[move_player])
draw_text(pos=board_coords,
text=str(i + 1),
font_size=self.grid_size * sizefac / 1.45,
font_name="Roboto")
def on_touch_down(self, touch):
animating_pv = self.animating_pv
if "button" in touch.profile:
if touch.button == "left":
if self.selecting_region_of_interest:
self.update_box_selection(touch, second_point=False)
else:
self.check_next_move_ghost(touch)
elif touch.button == "middle" and animating_pv:
pv, node, _, _ = animating_pv
upto = self.animating_pv_index or 1e9
for i, gtpmove in enumerate(pv):
if i <= upto: # up to move when scrolling, or all
node = node.play(Move.from_gtp(gtpmove, node.next_player))
node.analyze(self.katrain.engine, analyze_fast=True)
self.katrain.controls.move_tree.redraw_tree_trigger()
if ("button" not in touch.profile) or (touch.button not in ["scrollup", "scrolldown", "middle"]):
self.set_animating_pv(None, None) # any click/touch kills PV from label/move
def test_capture(self, new_game):
b = Game(MockKaTrain(force_package_config=True), MockEngine(), move_tree=new_game)
b.play(Move.from_gtp("A2", player="B"))
b.play(Move.from_gtp("B1", player="W"))
b.play(Move.from_gtp("A1", player="W"))
b.play(Move.from_gtp("C1", player="B"))
assert 3 == len(self.nonempty_chains(b))
assert 4 == len(b.stones)
assert 0 == len(b.prisoners)
b.play(Move.from_gtp("B2", player="B"))
assert 2 == len(self.nonempty_chains(b))
assert 3 == len(b.stones)
assert 2 == len(b.prisoners)
b.play(Move.from_gtp("B1", player="B"))
with pytest.raises(IllegalMoveException, match="Single stone suicide"):
b.play(Move.from_gtp("A1", player="W"))
assert 1 == len(self.nonempty_chains(b))
assert 4 == len(b.stones)
assert 2 == len(b.prisoners)
def test_capture(self):
b = Game(MockKaTrain(), MockEngine())
b.play(Move.from_gtp("A2", player="B"))
b.play(Move.from_gtp("B1", player="W"))
b.play(Move.from_gtp("A1", player="W"))
b.play(Move.from_gtp("C1", player="B"))
assert 3 == len(self.nonempty_chains(b))
assert 4 == len(b.stones)
assert 0 == len(b.prisoners)
b.play(Move.from_gtp("B2", player="B"))
assert 2 == len(self.nonempty_chains(b))
assert 3 == len(b.stones)
assert 2 == len(b.prisoners)
b.play(Move.from_gtp("B1", player="B"))
with pytest.raises(IllegalMoveException) as exc:
b.play(Move.from_gtp("A1", player="W"))
assert "Suicide" in str(exc.value)
assert 1 == len(self.nonempty_chains(b))
assert 4 == len(b.stones)
assert 2 == len(b.prisoners)
def test_suicide(self):
rulesets_to_test = BaseEngine.RULESETS_ABBR + [('{"suicide":true}', ""), ('{"suicide":false}', "")]
for shortrule, _ in rulesets_to_test:
new_game = GameNode(properties={"SZ": 19, "RU": shortrule})
b = Game(MockKaTrain(force_package_config=True), MockEngine(), move_tree=new_game)
b.play(Move.from_gtp("A18", player="B"))
b.play(Move.from_gtp("B18", player="B"))
b.play(Move.from_gtp("C19", player="B"))
b.play(Move.from_gtp("A19", player="W"))
assert 4 == len(b.stones)
assert 0 == len(b.prisoners)
if shortrule in ["tt", "nz", '{"suicide":true}']:
b.play(Move.from_gtp("B19", player="W"))
assert 3 == len(b.stones)
assert 2 == len(b.prisoners)
else:
with pytest.raises(IllegalMoveException, match="Suicide"):
b.play(Move.from_gtp("B19", player="W"))
assert 4 == len(b.stones)
assert 0 == len(b.prisoners)
def draw_hover_contents(self, *_args):
ghost_alpha = GHOST_ALPHA
katrain = self.katrain
game_ended = katrain.game.ended
current_node = katrain.game.current_node
player, next_player = current_node.player, current_node.next_player
stone_color = STONE_COLORS
lock_ai = self.trainer_config[
"lock_ai"] and self.katrain.play_analyze_mode == MODE_PLAY
self.canvas.after.clear()
with self.canvas.after:
self.active_pv_moves = []
# children of current moves in undo / review
alpha = GHOST_ALPHA
if katrain.analysis_controls.show_children.active:
for child_node in current_node.children:
points_lost = child_node.points_lost
move = child_node.move
if move and move.coords is not None:
if points_lost is None:
evalcol = None
else:
evalcol = copy.copy(self.eval_color(points_lost))
evalcol[3] = alpha
if child_node.analysis_ready:
self.active_pv_moves.append(
(move.coords, [move.gtp()] +
child_node.candidate_moves[0]["pv"],
current_node))
scale = CHILD_SCALE
self.draw_stone(
move.coords[0],
move.coords[1],
(*stone_color[move.player][:3], alpha),
None,
None,
evalcol,
evalscale=scale,
scale=scale,
)
# hints or PV
if katrain.analysis_controls.hints.active and not game_ended and not lock_ai:
hint_moves = current_node.candidate_moves
for i, move_dict in enumerate(hint_moves):
move = Move.from_gtp(move_dict["move"])
if move.coords is not None:
alpha, scale = GHOST_ALPHA, 1.0
if i == 0:
alpha += TOP_MOVE_ALPHA
elif move_dict[
"visits"] < VISITS_FRAC_SMALL * hint_moves[0][
"visits"]:
scale = 0.8
if "pv" in move_dict:
self.active_pv_moves.append(
(move.coords, move_dict["pv"], current_node))
else:
katrain.log(
f"PV missing for move_dict {move_dict}",
OUTPUT_DEBUG)
self.draw_stone(
move.coords[0],
move.coords[1],
[
*self.eval_color(move_dict["pointsLost"])[:3],
alpha
],
scale=scale,
)
# hover next move ghost stone
if self.ghost_stone:
self.draw_stone(*self.ghost_stone,
(*stone_color[next_player], ghost_alpha))
animating_pv = self.animating_pv
if animating_pv:
pv, node, start_time, _ = animating_pv
delay = self.trainer_config.get("anim_pv_time", 0.5)
up_to_move = (time.time() - start_time) / delay
self.draw_pv(pv, node, up_to_move)
def draw_hover_contents(self, *_args):
ghost_alpha = Theme.GHOST_ALPHA
katrain = self.katrain
game_ended = katrain.game.end_result
current_node = katrain.game.current_node
next_player = current_node.next_player
board_size_x, board_size_y = katrain.game.board_size
if len(self.gridpos_x) < board_size_x or len(self.gridpos_y) < board_size_y:
return # race condition
with self.canvas.after:
self.canvas.after.clear()
self.active_pv_moves = []
# hints or PV
hint_moves = []
if (
katrain.analysis_controls.hints.active
and not katrain.analysis_controls.policy.active
and not game_ended
):
hint_moves = current_node.candidate_moves
elif katrain.controls.status_state[1] == STATUS_TEACHING: # show score hint for teaching undo
hint_moves = [
m
for m in current_node.candidate_moves
for c in current_node.children
if c.move and c.auto_undo and c.move.gtp() == m["move"]
]
top_move_coords = None
child_moves = {c.move.gtp() for c in current_node.children if c.move}
if hint_moves:
low_visits_threshold = katrain.config("trainer/low_visits", 25)
top_moves_show = [
opt
for opt in [
katrain.config("trainer/top_moves_show"),
katrain.config("trainer/top_moves_show_secondary"),
]
if opt in TOP_MOVE_OPTIONS and opt != TOP_MOVE_NOTHING
]
for move_dict in hint_moves:
move = Move.from_gtp(move_dict["move"])
if move.coords is not None:
engine_best_move = move_dict.get("order", 99) == 0
scale = Theme.HINT_SCALE
text_on = True
alpha = Theme.HINTS_ALPHA
if (
move_dict["visits"] < low_visits_threshold
and not engine_best_move
and not move_dict["move"] in child_moves
):
scale = Theme.UNCERTAIN_HINT_SCALE
text_on = False
alpha = Theme.HINTS_LO_ALPHA
if "pv" in move_dict:
self.active_pv_moves.append((move.coords, move_dict["pv"], current_node))
else:
katrain.log(f"PV missing for move_dict {move_dict}", OUTPUT_DEBUG)
evalsize = self.stone_size * scale
evalcol = self.eval_color(move_dict["pointsLost"])
if text_on and top_moves_show: # remove grid lines using a board colored circle
draw_circle(
(self.gridpos_x[move.coords[0]], self.gridpos_y[move.coords[1]]),
self.stone_size * scale * 0.98,
Theme.APPROX_BOARD_COLOR,
)
Color(*evalcol[:3], alpha)
Rectangle(
pos=(self.gridpos_x[move.coords[0]] - evalsize, self.gridpos_y[move.coords[1]] - evalsize),
size=(2 * evalsize, 2 * evalsize),
texture=cached_texture(Theme.TOP_MOVE_TEXTURE),
)
if text_on and top_moves_show: # TODO: faster if not sized?
keys = {"size": self.grid_size / 3, "smallsize": self.grid_size / 3.33}
player_sign = current_node.player_sign(next_player)
if len(top_moves_show) == 1:
fmt = "[size={size:.0f}]{" + top_moves_show[0] + "}[/size]"
else:
fmt = (
"[size={size:.0f}]{"
+ top_moves_show[0]
+ "}[/size]\n[size={smallsize:.0f}]{"
+ top_moves_show[1]
+ "}[/size]"
)
keys[TOP_MOVE_DELTA_SCORE] = (
"0.0" if -0.05 < move_dict["pointsLost"] < 0.05 else f"{-move_dict['pointsLost']:+.1f}"
)
# def fmt_maybe_missing(arg,sign,digits=1):
# return str(round(sign*arg,digits)) if arg is not None else "N/A"
keys[TOP_MOVE_SCORE] = f"{player_sign * move_dict['scoreLead']:.1f}"
winrate = move_dict["winrate"] if player_sign == 1 else 1 - move_dict["winrate"]
keys[TOP_MOVE_WINRATE] = f"{winrate*100:.1f}"
keys[TOP_MOVE_DELTA_WINRATE] = f"{-move_dict['winrateLost']:+.1%}"
keys[TOP_MOVE_VISITS] = format_visits(move_dict["visits"])
# keys[TOP_MOVE_UTILITY] = fmt_maybe_missing( move_dict.get('utility'),player_sign,2)
# keys[TOP_MOVE_UTILITYLCB] = fmt_maybe_missing(move_dict.get('utilityLcb'),player_sign,2)
# keys[TOP_MOVE_SCORE_STDDEV] =fmt_maybe_missing(move_dict.get('scoreStdev'),1)
Color(*Theme.HINT_TEXT_COLOR)
draw_text(
pos=(self.gridpos_x[move.coords[0]], self.gridpos_y[move.coords[1]]),
text=fmt.format(**keys),
font_name="Roboto",
markup=True,
line_height=0.85,
halign="center",
)
if engine_best_move:
top_move_coords = move.coords
Color(*Theme.TOP_MOVE_BORDER_COLOR)
Line(
circle=(
self.gridpos_x[move.coords[0]],
self.gridpos_y[move.coords[1]],
self.stone_size - dp(1.2),
),
width=dp(1.2),
)
# children of current moves in undo / review
if katrain.analysis_controls.show_children.active:
for child_node in current_node.children:
move = child_node.move
if move and move.coords is not None:
if child_node.analysis_exists:
self.active_pv_moves.append(
(move.coords, [move.gtp()] + child_node.candidate_moves[0]["pv"], current_node)
)
if move.coords != top_move_coords: # for contrast
dashed_width = 18
Color(*Theme.NEXT_MOVE_DASH_CONTRAST_COLORS[child_node.player])
Line(
circle=(
self.gridpos_x[move.coords[0]],
self.gridpos_y[move.coords[1]],
self.stone_size - dp(1.2),
),
width=dp(1.2),
)
else:
dashed_width = 10
Color(*Theme.STONE_COLORS[child_node.player])
for s in range(0, 360, 30):
Line(
circle=(
self.gridpos_x[move.coords[0]],
self.gridpos_y[move.coords[1]],
self.stone_size - dp(1.2),
s,
s + dashed_width,
),
width=dp(1.2),
)
if self.selecting_region_of_interest and len(self.region_of_interest) == 4:
x1, x2, y1, y2 = self.region_of_interest
self.draw_roi_box([min(x1, x2), max(x1, x2), min(y1, y2), max(y1, y2)], width=dp(2))
else:
# hover next move ghost stone
if self.ghost_stone:
self.draw_stone(*self.ghost_stone, next_player, alpha=ghost_alpha)
animating_pv = self.animating_pv
if animating_pv:
pv, node, start_time, _ = animating_pv
up_to_move = self.get_animate_pv_index()
self.draw_pv(pv, node, up_to_move)
if getattr(self.katrain.game, "region_of_interest", None):
self.draw_roi_box(self.katrain.game.region_of_interest, width=dp(1.25))
# pass circle
if current_node.is_pass or game_ended:
if game_ended:
text = game_ended
katrain.controls.timer.paused = True
else:
text = i18n._("board-pass")
Color(*Theme.PASS_CIRCLE_COLOR)
center = (self.gridpos_x[int(board_size_x / 2)], self.gridpos_y[int(board_size_y / 2)])
size = min(self.width, self.height) * 0.227
Ellipse(pos=(center[0] - size / 2, center[1] - size / 2), size=(size, size))
Color(*Theme.PASS_CIRCLE_TEXT_COLOR)
draw_text(pos=center, text=text, font_size=size * 0.25, halign="center")
def generate_ai_move(game: Game, ai_mode: str,
ai_settings: Dict) -> Tuple[Move, GameNode]:
cn = game.current_node
if ai_mode == AI_HANDICAP:
pda = ai_settings["pda"]
if ai_settings["automatic"]:
n_handicaps = len(game.root.get_list_property("AB", []))
MOVE_VALUE = 14 # could be rules dependent
b_stones_advantage = max(
n_handicaps - 1, 0) - (cn.komi - MOVE_VALUE / 2) / MOVE_VALUE
pda = min(3, max(
-3, -b_stones_advantage *
(3 /
8))) # max PDA at 8 stone adv, normal 9 stone game is 8.46
handicap_analysis = request_ai_analysis(
game, cn, {
"playoutDoublingAdvantage": pda,
"playoutDoublingAdvantagePla": "BLACK"
})
if not handicap_analysis:
game.katrain.log(f"Error getting handicap-based move",
OUTPUT_ERROR)
ai_mode = AI_DEFAULT
while not cn.analysis_complete:
time.sleep(0.01)
game.engines[cn.next_player].check_alive(exception_if_dead=True)
ai_thoughts = ""
if (ai_mode
in AI_STRATEGIES_POLICY) and cn.policy: # pure policy based move
policy_moves = cn.policy_ranking
pass_policy = cn.policy[-1]
# dont make it jump around for the last few sensible non pass moves
top_5_pass = any([polmove[1].is_pass for polmove in policy_moves[:5]])
size = game.board_size
policy_grid = var_to_grid(cn.policy, size) # type: List[List[float]]
top_policy_move = policy_moves[0][1]
ai_thoughts += f"Using policy based strategy, base top 5 moves are {fmt_moves(policy_moves[:5])}. "
if (ai_mode == AI_POLICY and cn.depth <= ai_settings["opening_moves"]
) or (ai_mode in [AI_LOCAL, AI_TENUKI]
and not (cn.move and cn.move.coords)):
ai_mode = AI_WEIGHTED
ai_thoughts += f"Strategy override, using policy-weighted strategy instead. "
ai_settings = {
"pick_override": 0.9,
"weaken_fac": 1,
"lower_bound": 0.02
}
if top_5_pass:
aimove = top_policy_move
ai_thoughts += "Playing top one because one of them is pass."
elif ai_mode == AI_POLICY:
aimove = top_policy_move
ai_thoughts += f"Playing top policy move {aimove.gtp()}."
else: # weighted or pick-based
legal_policy_moves = [(pol, mv) for pol, mv in policy_moves
if not mv.is_pass and pol > 0]
board_squares = size[0] * size[1]
if ai_mode == AI_RANK: # calibrated, override from 0.8 at start to ~0.4 at full board
override = 0.8 * (
1 - 0.5 *
(board_squares - len(legal_policy_moves)) / board_squares)
overridetwo = 0.85 + max(0, 0.02 *
(ai_settings["kyu_rank"] - 8))
else:
override = ai_settings["pick_override"]
overridetwo = 1.0
if policy_moves[0][0] > override:
aimove = top_policy_move
ai_thoughts += f"Top policy move has weight > {override:.1%}, so overriding other strategies."
elif policy_moves[0][0] + policy_moves[1][0] > overridetwo:
aimove = top_policy_move
ai_thoughts += (
f"Top two policy moves have cumulative weight > {overridetwo:.1%}, so overriding other strategies."
)
elif ai_mode == AI_WEIGHTED:
aimove, ai_thoughts = policy_weighted_move(
policy_moves, ai_settings["lower_bound"],
ai_settings["weaken_fac"])
elif ai_mode in AI_STRATEGIES_PICK:
if ai_mode != AI_RANK:
n_moves = max(
1,
int(ai_settings["pick_frac"] *
len(legal_policy_moves) + ai_settings["pick_n"]))
else:
orig_calib_avemodrank = 0.063015 + 0.7624 * board_squares / (
10**(-0.05737 * ai_settings["kyu_rank"] + 1.9482))
norm_leg_moves = len(legal_policy_moves) / board_squares
modified_calib_avemodrank = (
0.3931 + 0.6559 * norm_leg_moves * math.exp(
-1 *
(3.002 * norm_leg_moves * norm_leg_moves -
norm_leg_moves - 0.034889 *
ai_settings["kyu_rank"] - 0.5097)**2) - 0.01093 *
ai_settings["kyu_rank"]) * orig_calib_avemodrank
n_moves = board_squares * norm_leg_moves / (
1.31165 * (modified_calib_avemodrank + 1) - 0.082653)
n_moves = max(1, round(n_moves))
if ai_mode in [
AI_INFLUENCE, AI_TERRITORY, AI_LOCAL, AI_TENUKI
]:
if cn.depth > ai_settings["endgame"] * board_squares:
weighted_coords = [(pol, 1, *mv.coords)
for pol, mv in legal_policy_moves]
x_ai_thoughts = (
f"Generated equal weights as move number >= {ai_settings['endgame'] * size[0] * size[1]}. "
)
n_moves = int(
max(n_moves,
len(legal_policy_moves) // 2))
elif ai_mode in [AI_INFLUENCE, AI_TERRITORY]:
weighted_coords, x_ai_thoughts = generate_influence_territory_weights(
ai_mode, ai_settings, policy_grid, size)
else: # ai_mode in [AI_LOCAL, AI_TENUKI]
weighted_coords, x_ai_thoughts = generate_local_tenuki_weights(
ai_mode, ai_settings, policy_grid, cn, size)
ai_thoughts += x_ai_thoughts
else: # ai_mode in [AI_PICK, AI_RANK]:
weighted_coords = [(policy_grid[y][x], 1, x, y)
for x in range(size[0])
for y in range(size[1])
if policy_grid[y][x] > 0]
pick_moves = weighted_selection_without_replacement(
weighted_coords, n_moves)
ai_thoughts += f"Picked {min(n_moves,len(weighted_coords))} random moves according to weights. "
if pick_moves:
new_top = [
(p, Move((x, y), player=cn.next_player))
for p, wt, x, y in heapq.nlargest(5, pick_moves)
]
aimove = new_top[0][1]
ai_thoughts += f"Top 5 among these were {fmt_moves(new_top)} and picked top {aimove.gtp()}. "
if new_top[0][0] < pass_policy:
ai_thoughts += f"But found pass ({pass_policy:.2%} to be higher rated than {aimove.gtp()} ({new_top[0][0]:.2%}) so will play top policy move instead."
aimove = top_policy_move
else:
aimove = top_policy_move
ai_thoughts += f"Pick policy strategy {ai_mode} failed to find legal moves, so is playing top policy move {aimove.gtp()}."
else:
raise ValueError(f"Unknown Policy-based AI mode {ai_mode}")
else: # Engine based move
candidate_ai_moves = cn.candidate_moves
if ai_mode == AI_HANDICAP:
candidate_ai_moves = handicap_analysis["moveInfos"]
top_cand = Move.from_gtp(candidate_ai_moves[0]["move"],
player=cn.next_player)
if top_cand.is_pass and ai_mode not in [
AI_DEFAULT,
AI_HANDICAP,
]: # don't play suicidal to balance score
aimove = top_cand
ai_thoughts += f"Top move is pass, so passing regardless of strategy. "
else:
if ai_mode == AI_JIGO:
sign = cn.player_sign(cn.next_player)
jigo_move = min(
candidate_ai_moves,
key=lambda move: abs(sign * move["scoreLead"] -
ai_settings["target_score"]))
aimove = Move.from_gtp(jigo_move["move"],
player=cn.next_player)
ai_thoughts += f"Jigo strategy found {len(candidate_ai_moves)} candidate moves (best {top_cand.gtp()}) and chose {aimove.gtp()} as closest to 0.5 point win"
elif ai_mode == AI_SCORELOSS:
c = ai_settings["strength"]
moves = [(
d["pointsLost"],
math.exp(min(200, -c * max(0, d["pointsLost"]))),
Move.from_gtp(d["move"], player=cn.next_player),
) for d in candidate_ai_moves]
topmove = weighted_selection_without_replacement(moves, 1)[0]
aimove = topmove[2]
ai_thoughts += f"ScoreLoss strategy found {len(candidate_ai_moves)} candidate moves (best {top_cand.gtp()}) and chose {aimove.gtp()} (weight {topmove[1]:.3f}, point loss {topmove[0]:.1f}) based on score weights."
elif ai_mode in [AI_SIMPLE_OWNERSHIP, AI_SETTLE_STONES]:
stones_with_player = {(*s.coords, s.player)
for s in game.stones}
next_player_sign = cn.player_sign(cn.next_player)
if ai_mode == AI_SIMPLE_OWNERSHIP:
def settledness(d, player_sign, player):
return sum([
abs(o) for o in d["ownership"]
if player_sign * o > 0
])
else:
board_size_x, board_size_y = game.board_size
def settledness(d, player_sign, player):
ownership_grid = var_to_grid(
d["ownership"], (board_size_x, board_size_y))
return sum([
abs(ownership_grid[s.coords[0]][s.coords[1]])
for s in game.stones if s.player == player
])
def is_attachment(move):
if move.is_pass:
return False
attach_opponent_stones = sum(
(move.coords[0] + dx, move.coords[1] + dy,
cn.player) in stones_with_player for dx in [-1, 0, 1]
for dy in [-1, 0, 1] if abs(dx) + abs(dy) == 1)
nearby_own_stones = sum(
(move.coords[0] + dx, move.coords[1] + dy,
cn.next_player) in stones_with_player
for dx in [-2, 0, 1, 2] for dy in [-2 - 1, 0, 1, 2]
if abs(dx) + abs(dy) <= 2 # allows clamps/jumps
)
return attach_opponent_stones >= 1 and nearby_own_stones == 0
def is_tenuki(d):
return not d.is_pass and not any(
not node or not node.move or node.move.is_pass or max(
abs(last_c - cand_c) for last_c, cand_c in zip(
node.move.coords, d.coords)) < 5
for node in [cn, cn.parent])
moves_with_settledness = sorted(
[(
move,
settledness(d, next_player_sign, cn.next_player),
settledness(d, -next_player_sign, cn.player),
is_attachment(move),
is_tenuki(move),
d,
) for d in candidate_ai_moves
if d["pointsLost"] < ai_settings["max_points_lost"]
and "ownership" in d and (
d["order"] <= 1
or d["visits"] >= ai_settings.get("min_visits", 1))
for move in
[Move.from_gtp(d["move"], player=cn.next_player)]
if not (move.is_pass and d["pointsLost"] > 0.75)],
key=lambda t: t[5]["pointsLost"] + ai_settings[
"attach_penalty"] * t[3] + ai_settings[
"tenuki_penalty"] * t[4] - ai_settings[
"settled_weight"] *
(t[1] + ai_settings["opponent_fac"] * t[2]),
)
if moves_with_settledness:
cands = [
f"{move.gtp()} ({d['pointsLost']:.1f} pt lost, {d['visits']} visits, {settled:.1f} settledness, {oppsettled:.1f} opponent settledness{', attachment' if isattach else ''}{', tenuki' if istenuki else ''})"
for move, settled, oppsettled, isattach, istenuki, d in
moves_with_settledness[:5]
]
ai_thoughts += f"{ai_mode} strategy. Top 5 Candidates {', '.join(cands)} "
aimove = moves_with_settledness[0][0]
else:
raise (Exception(
"No moves found - are you using an older KataGo with no per-move ownership info?"
))
else:
if ai_mode not in [AI_DEFAULT, AI_HANDICAP]:
game.katrain.log(
f"Unknown AI mode {ai_mode} or policy missing, using default.",
OUTPUT_INFO)
ai_thoughts += f"Strategy {ai_mode} not found or unexpected fallback."
aimove = top_cand
if ai_mode == AI_HANDICAP:
ai_thoughts += f"Handicap strategy found {len(candidate_ai_moves)} moves returned from the engine and chose {aimove.gtp()} as top move. PDA based score {cn.format_score(handicap_analysis['rootInfo']['scoreLead'])} and win rate {cn.format_winrate(handicap_analysis['rootInfo']['winrate'])}"
else:
ai_thoughts += f"Default strategy found {len(candidate_ai_moves)} moves returned from the engine and chose {aimove.gtp()} as top move"
game.katrain.log(f"AI thoughts: {ai_thoughts}", OUTPUT_DEBUG)
played_node = game.play(aimove)
played_node.ai_thoughts = ai_thoughts
return aimove, played_node
def generate_ai_move(game: Game, ai_mode: str,
ai_settings: Dict) -> Tuple[Move, GameNode]:
cn = game.current_node
if ai_mode == AI_HANDICAP:
pda = ai_settings["pda"]
if ai_settings["automatic"]:
n_handicaps = len(game.root.get_list_property("AB", []))
MOVE_VALUE = 14 # could be rules dependent
b_stones_advantage = max(
n_handicaps - 1, 0) - (cn.komi - MOVE_VALUE / 2) / MOVE_VALUE
pda = min(3, max(
-3, -b_stones_advantage *
(3 /
8))) # max PDA at 8 stone adv, normal 9 stone game is 8.46
handicap_analysis = request_ai_analysis(
game, cn, {
"playoutDoublingAdvantage": pda,
"playoutDoublingAdvantagePla": "BLACK"
})
if not handicap_analysis:
game.katrain.log(f"Error getting handicap-based move",
OUTPUT_ERROR)
ai_mode = AI_DEFAULT
while not cn.analysis_ready:
time.sleep(0.01)
game.engines[cn.next_player].check_alive(exception_if_dead=True)
ai_thoughts = ""
if (ai_mode
in AI_STRATEGIES_POLICY) and cn.policy: # pure policy based move
policy_moves = cn.policy_ranking
pass_policy = cn.policy[-1]
# dont make it jump around for the last few sensible non pass moves
top_5_pass = any([polmove[1].is_pass for polmove in policy_moves[:5]])
size = game.board_size
policy_grid = var_to_grid(cn.policy, size) # type: List[List[float]]
top_policy_move = policy_moves[0][1]
ai_thoughts += f"Using policy based strategy, base top 5 moves are {fmt_moves(policy_moves[:5])}. "
if (ai_mode == AI_POLICY and cn.depth <= ai_settings["opening_moves"]
) or (ai_mode in [AI_LOCAL, AI_TENUKI]
and not (cn.move and cn.move.coords)):
ai_mode = AI_WEIGHTED
ai_thoughts += f"Strategy override, using policy-weighted strategy instead. "
ai_settings = {
"pick_override": 0.9,
"weaken_fac": 1,
"lower_bound": 0.02
}
if top_5_pass:
aimove = top_policy_move
ai_thoughts += "Playing top one because one of them is pass."
elif ai_mode == AI_POLICY:
aimove = top_policy_move
ai_thoughts += f"Playing top policy move {aimove.gtp()}."
else: # weighted or pick-based
legal_policy_moves = [(pol, mv) for pol, mv in policy_moves
if not mv.is_pass and pol > 0]
board_squares = size[0] * size[1]
if ai_mode == AI_RANK: # calibrated, override from 0.8 at start to ~0.4 at full board
override = 0.8 * (
1 - 0.5 *
(board_squares - len(legal_policy_moves)) / board_squares)
overridetwo = 0.85 + max(0, 0.02 *
(ai_settings["kyu_rank"] - 8))
else:
override = ai_settings["pick_override"]
overridetwo = 1.0
if policy_moves[0][0] > override:
aimove = top_policy_move
ai_thoughts += f"Top policy move has weight > {override:.1%}, so overriding other strategies."
elif policy_moves[0][0] + policy_moves[1][0] > overridetwo:
aimove = top_policy_move
ai_thoughts += (
f"Top two policy moves have cumulative weight > {overridetwo:.1%}, so overriding other strategies."
)
elif ai_mode == AI_WEIGHTED:
aimove, ai_thoughts = policy_weighted_move(
policy_moves, ai_settings["lower_bound"],
ai_settings["weaken_fac"])
elif ai_mode in AI_STRATEGIES_PICK:
if ai_mode != AI_RANK:
n_moves = max(
1,
int(ai_settings["pick_frac"] *
len(legal_policy_moves) + ai_settings["pick_n"]))
else:
orig_calib_avemodrank = 0.063015 + 0.7624 * board_squares / (
10**(-0.05737 * ai_settings["kyu_rank"] + 1.9482))
norm_leg_moves = len(legal_policy_moves) / board_squares
modified_calib_avemodrank = (
0.3931 + 0.6559 * norm_leg_moves * math.exp(
-1 *
(3.002 * norm_leg_moves * norm_leg_moves -
norm_leg_moves - 0.034889 *
ai_settings["kyu_rank"] - 0.5097)**2) - 0.01093 *
ai_settings["kyu_rank"]) * orig_calib_avemodrank
n_moves = board_squares * norm_leg_moves / (
1.31165 * (modified_calib_avemodrank + 1) - 0.082653)
n_moves = max(1, round(n_moves))
if ai_mode in [
AI_INFLUENCE, AI_TERRITORY, AI_LOCAL, AI_TENUKI
]:
if cn.depth > ai_settings["endgame"] * board_squares:
weighted_coords = [(pol, 1, *mv.coords)
for pol, mv in legal_policy_moves]
x_ai_thoughts = (
f"Generated equal weights as move number >= {ai_settings['endgame'] * size[0] * size[1]}. "
)
n_moves = int(
max(n_moves,
len(legal_policy_moves) // 2))
elif ai_mode in [AI_INFLUENCE, AI_TERRITORY]:
weighted_coords, x_ai_thoughts = generate_influence_territory_weights(
ai_mode, ai_settings, policy_grid, size)
else: # ai_mode in [AI_LOCAL, AI_TENUKI]
weighted_coords, x_ai_thoughts = generate_local_tenuki_weights(
ai_mode, ai_settings, policy_grid, cn, size)
ai_thoughts += x_ai_thoughts
else: # ai_mode in [AI_PICK, AI_RANK]:
weighted_coords = [(policy_grid[y][x], 1, x, y)
for x in range(size[0])
for y in range(size[1])
if policy_grid[y][x] > 0]
pick_moves = weighted_selection_without_replacement(
weighted_coords, n_moves)
ai_thoughts += f"Picked {min(n_moves,len(weighted_coords))} random moves according to weights. "
if pick_moves:
new_top = [
(p, Move((x, y), player=cn.next_player))
for p, wt, x, y in heapq.nlargest(5, pick_moves)
]
aimove = new_top[0][1]
ai_thoughts += f"Top 5 among these were {fmt_moves(new_top)} and picked top {aimove.gtp()}. "
if new_top[0][0] < pass_policy:
ai_thoughts += f"But found pass ({pass_policy:.2%} to be higher rated than {aimove.gtp()} ({new_top[0][0]:.2%}) so will play top policy move instead."
aimove = top_policy_move
else:
aimove = top_policy_move
ai_thoughts += f"Pick policy strategy {ai_mode} failed to find legal moves, so is playing top policy move {aimove.gtp()}."
else:
raise ValueError(f"Unknown Policy-based AI mode {ai_mode}")
else: # Engine based move
candidate_ai_moves = cn.candidate_moves
if ai_mode == AI_HANDICAP:
candidate_ai_moves = handicap_analysis["moveInfos"]
top_cand = Move.from_gtp(candidate_ai_moves[0]["move"],
player=cn.next_player)
if top_cand.is_pass and ai_mode not in [
AI_DEFAULT, AI_HANDICAP
]: # don't play suicidal to balance score
aimove = top_cand
ai_thoughts += f"Top move is pass, so passing regardless of strategy. "
else:
if ai_mode == AI_JIGO:
sign = cn.player_sign(cn.next_player)
jigo_move = min(
candidate_ai_moves,
key=lambda move: abs(sign * move["scoreLead"] -
ai_settings["target_score"]))
aimove = Move.from_gtp(jigo_move["move"],
player=cn.next_player)
ai_thoughts += f"Jigo strategy found {len(candidate_ai_moves)} candidate moves (best {top_cand.gtp()}) and chose {aimove.gtp()} as closest to 0.5 point win"
elif ai_mode == AI_SCORELOSS:
c = ai_settings["strength"]
moves = [(
d["pointsLost"],
math.exp(min(200, -c * max(0, d["pointsLost"]))),
Move.from_gtp(d["move"], player=cn.next_player),
) for d in candidate_ai_moves]
topmove = weighted_selection_without_replacement(moves, 1)[0]
aimove = topmove[2]
ai_thoughts += f"ScoreLoss strategy found {len(candidate_ai_moves)} candidate moves (best {top_cand.gtp()}) and chose {aimove.gtp()} (weight {topmove[1]:.3f}, point loss {topmove[0]:.1f}) based on score weights."
else:
if ai_mode not in [AI_DEFAULT, AI_HANDICAP]:
game.katrain.log(
f"Unknown AI mode {ai_mode} or policy missing, using default.",
OUTPUT_INFO)
ai_thoughts += f"Strategy {ai_mode} not found or unexpected fallback."
aimove = top_cand
if ai_mode == AI_HANDICAP:
ai_thoughts += f"Handicap strategy found {len(candidate_ai_moves)} moves returned from the engine and chose {aimove.gtp()} as top move. PDA based score {cn.format_score(handicap_analysis['rootInfo']['scoreLead'])} and win rate {cn.format_winrate(handicap_analysis['rootInfo']['winrate'])}"
else:
ai_thoughts += f"Default strategy found {len(candidate_ai_moves)} moves returned from the engine and chose {aimove.gtp()} as top move"
game.katrain.log(f"AI thoughts: {ai_thoughts}", OUTPUT_DEBUG)
played_node = game.play(aimove)
played_node.ai_thoughts = ai_thoughts
return aimove, played_node
def draw_hover_contents(self, *_args):
ghost_alpha = GHOST_ALPHA
katrain = self.katrain
game_ended = katrain.game.ended
current_node = katrain.game.current_node
player, next_player = current_node.player, current_node.next_player
board_size_x, board_size_y = katrain.game.board_size
if len(self.gridpos_x) < board_size_x or len(
self.gridpos_y) < board_size_y:
return # race condition
with self.canvas.after:
self.canvas.after.clear()
self.active_pv_moves = []
# children of current moves in undo / review
alpha = GHOST_ALPHA
if katrain.analysis_controls.show_children.active:
for child_node in current_node.children:
points_lost = child_node.points_lost
move = child_node.move
if move and move.coords is not None:
if points_lost is None:
evalcol = None
else:
evalcol = copy.copy(self.eval_color(points_lost))
evalcol[3] = alpha
if child_node.analysis_ready:
self.active_pv_moves.append(
(move.coords, [move.gtp()] +
child_node.candidate_moves[0]["pv"],
current_node))
scale = CHILD_SCALE
self.draw_stone(
move.coords[0],
move.coords[1],
move.player,
alpha=alpha,
evalcol=evalcol,
evalscale=scale,
scale=scale,
)
# hints or PV
if katrain.analysis_controls.hints.active and not game_ended:
hint_moves = current_node.candidate_moves
for i, move_dict in enumerate(hint_moves):
move = Move.from_gtp(move_dict["move"])
if move.coords is not None:
alpha, scale = GHOST_ALPHA, 1.0
if move_dict["visits"] < VISITS_FRAC_SMALL * hint_moves[
0]["visits"]:
scale = 0.8
if "pv" in move_dict:
self.active_pv_moves.append(
(move.coords, move_dict["pv"], current_node))
else:
katrain.log(
f"PV missing for move_dict {move_dict}",
OUTPUT_DEBUG)
draw_circle(
(self.gridpos_x[move.coords[0]],
self.gridpos_y[move.coords[1]]),
col=[
*self.eval_color(move_dict["pointsLost"])[:3],
alpha
],
r=self.stone_size * scale,
)
if i == 0:
Color(*TOP_MOVE_BORDER_COLOR)
Line(
circle=(
self.gridpos_x[move.coords[0]],
self.gridpos_y[move.coords[1]],
self.stone_size * scale - 1.2,
),
width=dp(1.2),
)
# hover next move ghost stone
if self.ghost_stone:
self.draw_stone(*self.ghost_stone,
next_player,
alpha=ghost_alpha)
animating_pv = self.animating_pv
if animating_pv:
pv, node, start_time, _ = animating_pv
delay = self.trainer_config.get("anim_pv_time", 0.5)
up_to_move = (time.time() - start_time) / delay
self.draw_pv(pv, node, up_to_move)
def generate_ai_move(game: Game, ai_mode: str,
ai_settings: Dict) -> Tuple[Move, GameNode]:
cn = game.current_node
while not cn.analysis_ready:
time.sleep(0.01)
game.engines[cn.next_player].check_alive(exception_if_dead=True)
ai_thoughts = ""
if (ai_mode
in AI_STRATEGIES_POLICY) and cn.policy: # pure policy based move
policy_moves = cn.policy_ranking
pass_policy = cn.policy[-1]
# dont make it jump around for the last few sensible non pass moves
top_5_pass = any([polmove[1].is_pass for polmove in policy_moves[:5]])
size = game.board_size
policy_grid = var_to_grid(cn.policy, size) # type: List[List[float]]
top_policy_move = policy_moves[0][1]
ai_thoughts += f"Using policy based strategy, base top 5 moves are {fmt_moves(policy_moves[:5])}. "
if (ai_mode == AI_POLICY and cn.depth <= ai_settings["opening_moves"]
) or (ai_mode in [AI_LOCAL, AI_TENUKI]
and not (cn.move and cn.move.coords)):
ai_mode = AI_WEIGHTED
ai_thoughts += f"Strategy override, using policy-weighted strategy instead. "
ai_settings = {
"pick_override": 0.9,
"weaken_fac": 1,
"lower_bound": 0.02
}
if top_5_pass:
aimove = top_policy_move
ai_thoughts += "Playing top one because one of them is pass."
elif ai_mode == AI_POLICY:
aimove = top_policy_move
ai_thoughts += f"Playing top policy move {aimove.gtp()}."
else: # weighted or pick-based
legal_policy_moves = [(pol, mv) for pol, mv in policy_moves
if not mv.is_pass and pol > 0]
board_squares = size[0] * size[1]
if ai_mode == AI_RANK: # calibrated, override from 0.8 at start to ~0.4 at full board
override = 0.8 * (
1 - 0.5 *
(board_squares - len(legal_policy_moves)) / board_squares)
else:
override = ai_settings["pick_override"]
if policy_moves[0][0] > override:
aimove = top_policy_move
ai_thoughts += f"Top policy move has weight > {override:.1%}, so overriding other strategies."
elif ai_mode == AI_WEIGHTED:
aimove, ai_thoughts = policy_weighted_move(
policy_moves, ai_settings["lower_bound"],
ai_settings["weaken_fac"])
elif ai_mode in AI_STRATEGIES_PICK:
if ai_mode != AI_RANK:
n_moves = int(ai_settings["pick_frac"] *
len(legal_policy_moves) +
ai_settings["pick_n"])
else:
n_moves = int(
round(
board_squares / 361 *
10**(-0.05737 * ai_settings["kyu_rank"] + 1.9482)))
if ai_mode in [
AI_INFLUENCE, AI_TERRITORY, AI_LOCAL, AI_TENUKI
]:
if cn.depth > ai_settings["endgame"] * board_squares:
weighted_coords = [(pol, 1, *mv.coords)
for pol, mv in legal_policy_moves]
x_ai_thoughts = (
f"Generated equal weights as move number >= {ai_settings['endgame'] * size[0] * size[1]}. "
)
n_moves = int(
max(n_moves, 0.5 * len(legal_policy_moves)))
elif ai_mode in [AI_INFLUENCE, AI_TERRITORY]:
weighted_coords, x_ai_thoughts = generate_influence_territory_weights(
ai_mode, ai_settings, policy_grid, size)
else: # ai_mode in [AI_LOCAL, AI_TENUKI]
weighted_coords, x_ai_thoughts = generate_local_tenuki_weights(
ai_mode, ai_settings, policy_grid, cn, size)
ai_thoughts += x_ai_thoughts
else: # ai_mode in [AI_PICK, AI_RANK]:
weighted_coords = [(policy_grid[y][x], 1, x, y)
for x in range(size[0])
for y in range(size[1])
if policy_grid[y][x] > 0]
pick_moves = weighted_selection_without_replacement(
weighted_coords, n_moves)
ai_thoughts += f"Picked {min(n_moves,len(weighted_coords))} random moves according to weights. "
if pick_moves:
new_top = [
(p, Move((x, y), player=cn.next_player))
for p, wt, x, y in heapq.nlargest(5, pick_moves)
]
aimove = new_top[0][1]
ai_thoughts += f"Top 5 among these were {fmt_moves(new_top)} and picked top {aimove.gtp()}. "
if new_top[0][0] < pass_policy:
ai_thoughts += f"But found pass ({pass_policy:.2%} to be higher rated than {aimove.gtp()} ({new_top[0][0]:.2%}) so will play top policy move instead."
aimove = top_policy_move
else:
aimove = top_policy_move
ai_thoughts += f"Pick policy strategy {ai_mode} failed to find legal moves, so is playing top policy move {aimove.gtp()}."
else:
raise ValueError(f"Unknown Policy-based AI mode {ai_mode}")
else: # Engine based move
candidate_ai_moves = cn.candidate_moves
top_cand = Move.from_gtp(candidate_ai_moves[0]["move"],
player=cn.next_player)
if top_cand.is_pass: # don't play suicidal to balance score - pass when it's best
aimove = top_cand
ai_thoughts += f"Top move is pass, so passing regardless of strategy."
else:
if ai_mode == AI_JIGO:
sign = cn.player_sign(cn.next_player)
jigo_move = min(
candidate_ai_moves,
key=lambda move: abs(sign * move["scoreLead"] -
ai_settings["target_score"]))
aimove = Move.from_gtp(jigo_move["move"],
player=cn.next_player)
ai_thoughts += f"Jigo strategy found {len(candidate_ai_moves)} candidate moves (best {top_cand.gtp()}) and chose {aimove.gtp()} as closest to 0.5 point win"
elif ai_mode == AI_SCORELOSS:
c = ai_settings["strength"]
moves = [(
d["pointsLost"],
math.exp(min(200, -c * max(0, d["pointsLost"]))),
Move.from_gtp(d["move"], player=cn.next_player),
) for d in candidate_ai_moves]
topmove = weighted_selection_without_replacement(moves, 1)[0]
aimove = topmove[2]
ai_thoughts += f"ScoreLoss strategy found {len(candidate_ai_moves)} candidate moves (best {top_cand.gtp()}) and chose {aimove.gtp()} (weight {topmove[1]:.3f}, point loss {topmove[0]:.1f}) based on score weights."
else:
if ai_mode != AI_DEFAULT:
game.katrain.log(
f"Unknown AI mode {ai_mode} or policy missing, using default.",
OUTPUT_INFO)
ai_thoughts += f"Strategy {ai_mode} not found or unexpected fallback."
aimove = top_cand
ai_thoughts += f"Default strategy found {len(candidate_ai_moves)} moves returned from the engine and chose {aimove.gtp()} as top move"
game.katrain.log(f"AI thoughts: {ai_thoughts}", OUTPUT_DEBUG)
played_node = game.play(aimove)
played_node.ai_thoughts = ai_thoughts
return aimove, played_node
def draw_hover_contents(self, *_args):
ghost_alpha = POLICY_ALPHA
katrain = self.katrain
game_ended = katrain.game.end_result
current_node = katrain.game.current_node
player, next_player = current_node.player, current_node.next_player
board_size_x, board_size_y = katrain.game.board_size
if len(self.gridpos_x) < board_size_x or len(self.gridpos_y) < board_size_y:
return # race condition
with self.canvas.after:
self.canvas.after.clear()
self.active_pv_moves = []
# hints or PV
hint_moves = []
if (
katrain.analysis_controls.hints.active
and not katrain.analysis_controls.policy.active
and not game_ended
):
hint_moves = current_node.candidate_moves
elif katrain.controls.status_state[1] == STATUS_TEACHING: # show score hint for teaching undo
hint_moves = [
m
for m in current_node.candidate_moves
for c in current_node.children
if c.move and c.auto_undo and c.move.gtp() == m["move"]
]
top_move_coords = None
if hint_moves:
low_visits_threshold = katrain.config("trainer/low_visits", 25)
for move_dict in hint_moves:
move = Move.from_gtp(move_dict["move"])
if move.coords is not None:
engine_best_move = move_dict.get("order", 99) == 0
scale = HINT_SCALE
text_on = True
alpha = HINTS_ALPHA
if move_dict["visits"] < low_visits_threshold and not engine_best_move:
scale = UNCERTAIN_HINT_SCALE
text_on = False
alpha = HINTS_MIN_ALPHA + (HINTS_ALPHA - HINTS_MIN_ALPHA) * (
move_dict["visits"] / low_visits_threshold
)
if "pv" in move_dict:
self.active_pv_moves.append((move.coords, move_dict["pv"], current_node))
else:
katrain.log(f"PV missing for move_dict {move_dict}", OUTPUT_DEBUG)
evalsize = self.stone_size * scale
evalcol = self.eval_color(move_dict["pointsLost"])
Color(*evalcol[:3], alpha)
Rectangle(
pos=(self.gridpos_x[move.coords[0]] - evalsize, self.gridpos_y[move.coords[1]] - evalsize),
size=(2 * evalsize, 2 * evalsize),
source="img/topmove.png",
)
if self.trainer_config["text_point_loss"] and text_on:
if move_dict["pointsLost"] < 0.05:
ptloss_text = "0.0"
else:
ptloss_text = f"{-move_dict['pointsLost']:+.1f}"
sizefac = 1
Color(*BLACK)
draw_text(
pos=(self.gridpos_x[move.coords[0]], self.gridpos_y[move.coords[1]]),
text=ptloss_text,
font_size=self.grid_size * sizefac / 2.5,
font_name="Roboto",
)
if engine_best_move:
top_move_coords = move.coords
Color(*TOP_MOVE_BORDER_COLOR)
Line(
circle=(
self.gridpos_x[move.coords[0]],
self.gridpos_y[move.coords[1]],
self.stone_size - dp(1.2),
),
width=dp(1.2),
)
# children of current moves in undo / review
if katrain.analysis_controls.show_children.active:
for child_node in current_node.children:
move = child_node.move
if move and move.coords is not None:
if child_node.analysis_ready:
self.active_pv_moves.append(
(move.coords, [move.gtp()] + child_node.candidate_moves[0]["pv"], current_node)
)
if move.coords != top_move_coords: # for contrast
dashed_width = 18
Color(*STONE_CONTRAST_COLORS[child_node.player])
Line(
circle=(
self.gridpos_x[move.coords[0]],
self.gridpos_y[move.coords[1]],
self.stone_size - dp(1.2),
),
width=dp(1.2),
)
else:
dashed_width = 10
Color(*STONE_COLORS[child_node.player])
for s in range(0, 360, 30):
Line(
circle=(
self.gridpos_x[move.coords[0]],
self.gridpos_y[move.coords[1]],
self.stone_size - dp(1.2),
s,
s + dashed_width,
),
width=dp(1.2),
)
# hover next move ghost stone
if self.ghost_stone:
self.draw_stone(*self.ghost_stone, next_player, alpha=ghost_alpha)
animating_pv = self.animating_pv
if animating_pv:
pv, node, start_time, _ = animating_pv
delay = self.katrain.config("general/anim_pv_time", 0.5)
up_to_move = (time.time() - start_time) / delay
self.draw_pv(pv, node, up_to_move)