Ii|/lSrSSKJr SSKrSSKrSSKJrJr SSKJ r \R"\ 5r SSK JrJrJr SSKJrJrJr SS KJrJrJrJrJrJrJr \ (aSS KJrJr \"SS S 9r SS jr!\""5r#SSjr$SSjr%SSjr&SSjr'SSjr(SSjr)SSjr*SSjr+S Sjr,SSjr-S!Sjr.SSjr/g)"uBot AI for Backgammon — GNUBG engine with random/simple fallback. GNUBG queries run in a background thread to avoid blocking the server. bot_think() returns None while waiting for a result, and the BotHelper will retry on the next tick. ) annotationsN)FutureThreadPoolExecutor) TYPE_CHECKING) GnubgProcessis_gnubg_availableresolve_next_action)BackgammonMovegenerate_legal_moveshas_any_legal_move) bar_count color_sign off_countopponent_color point_count point_ownerremaining_dice_unique)BackgammonGameBackgammonPlayergnubg) max_workersthread_name_prefixc\URnURn[U5nUbU$[U5(agURS:Xa9UR R 5 [X5nU[LagU(aU$gURS:Xa [X5$URS:Xa[X#5(dUR5 gUR (aB[UR X#URS9nU(aU$UR R 5 [X5$g)zDecide the bot's next action.Npre_rollpoint_0doublingmoving) forced_dice) game_statecolor_check_pending _is_pending turn_phase _bot_goalsclear_maybe_offer_double_WAITING_decide_take_or_dropr _end_moving_phaser _forced_dice _pick_move)gameplayergsr!pending cube_actionactions :c:\Users\dbart\PlayPalace11\server\games\backgammon\bot.py bot_thinkr4$s B LLET"G4 }} " )$7 ( "   }} "#D11 }} !",,  " " $ ??("QUQbQbcF OO ! ! #$'' c<[R"U/UQ76Ulg)z(Submit a GNUBG query to the thread pool.N) _gnubg_poolsubmit _gnubg_future)r-fnargss r3 _submit_asyncr<Qs$++B66Dr5c\[USS5nUSL=(a UR5(+$)z*Check if there's an in-flight GNUBG query.r9N)getattrdone)r-futures r3r#r#Vs) T?D 1F   3fkkm"33r5c[USS5nUbUR5(dgSUlURSS9n[ U[ 5(aX lgUbU$[RSURR5 [U5 URnURnURS:Xa [X5$URS:XagURS :Xag g![a SnNf=f) zECheck if a pending GNUBG query has completed. Returns action or None.r9Nr)timeoutz%GNUBG future returned None (phase=%s)rrrr accept_double)r>r?r9result Exception isinstancelistr%logwarningr r$_notify_fallback current_color_pick_simple_move)r-r@rDr/r!s r3r"r"\s#D/4@F ~V[[]]Dq) &$  KK79S9STT B   E }}  -- }} " }} " / sC** C98C9c^^^SSKJn TRRnUS;agUR U5nUcgUS:XagTR T5(dg[ TU5mTcgUUU4Sjn[TU5 [$)z|Check if a GNUBG-backed bot should offer a double before rolling. Returns an action string, None (no double), or _WAITING. rDIFFICULTY_PLYrandomsimpleN whackgammoncn>TRTRTR5nUS;aUTlgg)N)z double-take double-pass offer_doubler)get_cube_decisionr r!_gnubg_cube_decision)decisionr- gnubg_procr.s r3_query#_maybe_offer_double.._querys4//N 5 5(0D %!r5) r-rOoptionsbot_difficultyget _can_double_get_gnubg_processr<r()r-r.rO difficultyplyr[rZs`` @r3r'r's %,,J))   Z (C {]"   F # ##D#.J$ Or5cSSKJn URRnUS;agUR U5nUcgUS:Xag[ USS5nUS:XaSUlg SUlg) uDecide whether to take or drop a double offer. Uses the cube decision stored by _maybe_offer_double when the opponent doubled. GNUBG's analysis is always from the doubler's perspective — "double-pass" means the receiver should drop, "double-take" means take. rrNrPrCNrSrXrU drop_double)r-rOr]r^r_r>rX)r-r.rOrbrcstoreds r3r)r)st%,,J))   Z (C {]"T14 8F $(! $D r5cx^^^^ SSKJn URmURmURR nUS:Xa [ UT5$US:Xa [UT5$URU5nUc [ UT5$US:Hm [X5mTc[U5 [UT5$UUUU 4Sjn[X5 g)z/Pick a move based on the configured difficulty.rrNrQrRNrScp>T(aTRTT5nOTRTT5nU(aU$g)N)get_worst_move get_best_move)goalsr!rZr/is_whacks r3r[_pick_move.._querys5 --b%8E,,R7E Lr5) r-rOr r!r]r^_pick_random_moverLr_rarJr<) r-r.rOrbrcr[r!rZr/rls @@@@r3r,r,s$ B LLE,,JX u--X u--   Z (C { u--]*H#D.J u--$ r5cURn[U5HJn[X!U5nU(dM[R"U5nSUR SUR 3s $ g)z7Pick a random legal move, trying all unused die values.point__N)r rr rQchoicesource destination)r-r!r/die_valmovesmoves r3rnrns\ B(,$R8 5=='DDKK=$*:*:);< < - r5cURnSnSn[U5H-n[X!U5Hn[X&U5nXt:dMUnUnM M/ UcgSURSUR 3$)a Pick a move using simple heuristics. Priority scoring: - Bearing off is great - Hitting an opponent blot is good - Making a new point (landing where we have exactly 1) is good - Escaping from opponent's home board is decent - Leaving a blot in a dangerous area is bad Nirprq)r rr _score_moversrt)r-r!r/ best_move best_scorerurwscores r3rLrLs B'+IJ(,(G>r5cSn[U5n[U5nUR(aUS- nUR(a<US- nUS:XaURS::aUS- nOUS:XaURS:aUS- nUR(dURS:awURS ::agUR R URnXd-S :Xa<US - nUS:XaURS::aUS - nOUS:XaURS:aUS - nURS:an[UR R UR5nUS :Xa<US -nUS:XaURS:aUS -nOUS:XaURS::aUS -nUR(dURS:aURS ::axUR R URnX-S:XaMUR(d<US-nUS:XaURS:aUS-nOUS:XaURS::aUS-nURS:a7US:XaURS:aUS- nOUS:XaURS::aUS- nURS:XaUS- nURS:a.US:XaX1RS-- nU$US UR- S-- nU$)z6Score a move with simple heuristics. Higher is better.rd(redwhiter# ) rr is_bear_offis_hitrtboardpointsrsabs) r/rwr!r|signoppcurrent src_countdest_vals r3ryrys E e D  C    {{   E>d..!3 RKE g $"2"2b"8 RKE    0 0A 5$:J:Jb:P((//$"2"23 >Q  RKE~$"2"2a"7 '!d&6&6"&<  {{a 45 > RKE~$++"3 '!dkkQ&6     0 0A 5$:J:Jb:P88??4#3#34 ?a  RKE~$"2"2b"8 '!d&6&6!&;  {{a E>dkkR/ QJE g $++"2 QJE {{b   {{a E> [[A% %E L b4;;&1, ,E Lr5cZ[USS5(agSUlURS5 g)zHNotify players once that GNUBG is unavailable and bot is using fallback._gnubg_fallback_notifiedFNTzbackgammon-gnubg-fallback)r>r broadcast_l)r-s r3rJrJZs,t/77$(D!01r5c[USS5nUbU$[5(dg[US9nUR5(aX lU$g)z.Get or create the GNUBG process for this game. _gnubg_procN)rc)r>r rstartr)r-rcprocs r3rarabsJ 4 -D     C D zz|| r5cpSH0n[XS5nUcMUR5 [XS5 M2 g)z(Stop GNUBG processes when the game ends.)r _hint_procN)r>stopsetattr)r-attrrs r3 cleanup_gnubgrss1-t4(   IIK D % .r5)r-rr.rreturn str | None)r-rrNone)r-rrbool)r-rrr)r-rr.r)r-rr!strrr)rwr r!rrint)r-rrcrrzGnubgProcess | None)0__doc__ __future__rloggingrQconcurrent.futuresrrtypingr getLogger__name__rHrrr r rvr r r staterrrrrrrr-rrr7r4objectr(r<r#r"r'r)r,rnrLryrJrarr5r3rs# 9  !HHKK6!Q7K &T 87 4 F#L<#L?4IX2"&r5