python bindings

Cargo.lock

@@ -3460,6 +3460,15 @@ dependencies = [
  "stable_deref_trait",
 ]
 
+[[package]]
+name = "memoffset"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "488016bfae457b036d996092f6cb448677611ce4449e970ceaf42695203f218a"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "merge"
 version = "0.1.0"
@@ -4210,6 +4219,69 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "pyo3"
+version = "0.23.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7778bffd85cf38175ac1f545509665d0b9b92a198ca7941f131f85f7a4f9a872"
+dependencies = [
+ "cfg-if",
+ "indoc",
+ "libc",
+ "memoffset",
+ "once_cell",
+ "portable-atomic",
+ "pyo3-build-config",
+ "pyo3-ffi",
+ "pyo3-macros",
+ "unindent",
+]
+
+[[package]]
+name = "pyo3-build-config"
+version = "0.23.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94f6cbe86ef3bf18998d9df6e0f3fc1050a8c5efa409bf712e661a4366e010fb"
+dependencies = [
+ "once_cell",
+ "target-lexicon",
+]
+
+[[package]]
+name = "pyo3-ffi"
+version = "0.23.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e9f1b4c431c0bb1c8fb0a338709859eed0d030ff6daa34368d3b152a63dfdd8d"
+dependencies = [
+ "libc",
+ "pyo3-build-config",
+]
+
+[[package]]
+name = "pyo3-macros"
+version = "0.23.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fbc2201328f63c4710f68abdf653c89d8dbc2858b88c5d88b0ff38a75288a9da"
+dependencies = [
+ "proc-macro2",
+ "pyo3-macros-backend",
+ "quote",
+ "syn 2.0.106",
+]
+
+[[package]]
+name = "pyo3-macros-backend"
+version = "0.23.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fca6726ad0f3da9c9de093d6f116a93c1a38e417ed73bf138472cf4064f72028"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "pyo3-build-config",
+ "quote",
+ "syn 2.0.106",
+]
+
 [[package]]
 name = "qoi"
 version = "0.4.1"
@@ -5154,6 +5226,7 @@ dependencies = [
  "base64 0.21.7",
  "log",
  "merge",
+ "pyo3",
  "rand 0.8.5",
  "serde",
  "transpose",
@@ -5892,6 +5965,12 @@ version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
 
+[[package]]
+name = "unindent"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7264e107f553ccae879d21fbea1d6724ac785e8c3bfc762137959b5802826ef3"
+
 [[package]]
 name = "universal-hash"
 version = "0.5.1"

bot/pyproject.toml

@@ -0,0 +1,9 @@
+[build-system]
+requires = ["maturin>=1.0,<2.0"]
+build-backend = "maturin"
+
+[tool.maturin]
+# "extension-module" tells pyo3 we want to build an extension module (skips linking against libpython.so)
+features = ["pyo3/extension-module"]
+# python-source = "python"
+# module-name = "trictrac.game"

bot/python/test.py

@@ -0,0 +1,4 @@
+import store
+
+game = store.TricTrac()
+print(game.get_state_dict())

devenv.lock

@@ -3,10 +3,10 @@
     "devenv": {
       "locked": {
         "dir": "src/modules",
-        "lastModified": 1753667201,
+        "lastModified": 1768056019,
         "owner": "cachix",
         "repo": "devenv",
-        "rev": "4d584d7686a50387f975879788043e55af9f0ad4",
+        "rev": "9bfc4a64c3a798ed8fa6cee3a519a9eac5e73cb5",
         "type": "github"
       },
       "original": {
@@ -19,14 +19,14 @@
     "flake-compat": {
       "flake": false,
       "locked": {
-        "lastModified": 1747046372,
+        "lastModified": 1767039857,
-        "owner": "edolstra",
+        "owner": "NixOS",
         "repo": "flake-compat",
-        "rev": "9100a0f413b0c601e0533d1d94ffd501ce2e7885",
+        "rev": "5edf11c44bc78a0d334f6334cdaf7d60d732daab",
         "type": "github"
       },
       "original": {
-        "owner": "edolstra",
+        "owner": "NixOS",
         "repo": "flake-compat",
         "type": "github"
       }
@@ -40,10 +40,10 @@
         ]
       },
       "locked": {
-        "lastModified": 1750779888,
+        "lastModified": 1767281941,
         "owner": "cachix",
         "repo": "git-hooks.nix",
-        "rev": "16ec914f6fb6f599ce988427d9d94efddf25fe6d",
+        "rev": "f0927703b7b1c8d97511c4116eb9b4ec6645a0fa",
         "type": "github"
       },
       "original": {
@@ -60,10 +60,10 @@
         ]
       },
       "locked": {
-        "lastModified": 1709087332,
+        "lastModified": 1762808025,
         "owner": "hercules-ci",
         "repo": "gitignore.nix",
-        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
+        "rev": "cb5e3fdca1de58ccbc3ef53de65bd372b48f567c",
         "type": "github"
       },
       "original": {
@@ -74,10 +74,10 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1753432016,
+        "lastModified": 1767995494,
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "6027c30c8e9810896b92429f0092f624f7b1aace",
+        "rev": "45a1530683263666f42d1de4cdda328109d5a676",
         "type": "github"
       },
       "original": {

devenv.nix

@@ -15,6 +15,12 @@
     pkgs.samply # code profiler
     pkgs.feedgnuplot # to visualize bots training results
 
+    # --- AI training with python ---
+    # generate python classes from rust code
+    pkgs.maturin
+    # required by python numpy
+    pkgs.libz
+
     # for bevy
     pkgs.alsa-lib
     pkgs.udev
@@ -47,6 +53,25 @@
   # https://devenv.sh/languages/
   languages.rust.enable = true;
 
+
+  # AI training with python
+  enterShell = ''
+    PYTHONPATH=$PYTHONPATH:$PWD/.devenv/state/venv/lib/python3/site-packages
+  '';
+
+  languages.python = {
+    enable = true;
+    uv.enable = true;
+    venv.enable = true;
+    venv.requirements = "
+      pip
+      gymnasium
+      numpy
+      stable-baselines3
+      shimmy
+    ";
+  };
+
   # https://devenv.sh/scripts/
   # scripts.hello.exec = "echo hello from $GREET";
 

doc/python.md

@@ -0,0 +1,31 @@
+# Python bindings
+
+## Génération bindings
+
+```sh
+# Generate trictrac python lib as a wheel
+maturin build -m store/Cargo.toml --release
+# Install wheel in local python env
+pip install --no-deps --force-reinstall --prefix .devenv/state/venv target/wheels/*.whl
+```
+
+## Usage
+
+Pour vérifier l'accès à la lib : lancer le shell interactif `python`
+
+```python
+Python 3.13.11 (main, Dec  5 2025, 16:06:33) [GCC 15.2.0] on linux
+Type "help", "copyright", "credits" or "license" for more information.
+>>> import store
+>>> game = store.TricTrac()
+>>> game.get_active_player_id()
+1
+```
+
+### Appels depuis python
+
+`python bot/python/test.py`
+
+## Interfaces
+
+## Entraînement

justfile

@@ -20,6 +20,7 @@ profile:
   cargo build --profile profiling
   samply record ./target/profiling/client_cli --bot dummy,dummy
 pythonlib:
+  rm -rf target/wheels
   maturin build -m store/Cargo.toml --release
   pip install --no-deps --force-reinstall --prefix .devenv/state/venv target/wheels/*.whl
 trainbot algo:

store/Cargo.toml

@@ -7,14 +7,17 @@ edition = "2021"
 
 [lib]
 name = "store"
+# "cdylib" is necessary to produce a shared library for Python to import from.
 # Only "rlib" is needed for other Rust crates to use this library
-crate-type = ["rlib"]
+crate-type = ["cdylib", "rlib"]
 
 [dependencies]
 base64 = "0.21.7"
 # provides macros for creating log messages to be used by a logger (for example env_logger)
 log = "0.4.20"
 merge = "0.1.0"
+# generate python lib (with maturin) to be used in AI training
+pyo3 = { version = "0.23", features = ["extension-module", "abi3-py38"] }
 rand = "0.8.5"
 serde = { version = "1.0", features = ["derive"] }
 transpose = "0.2.2"

store/src/lib.rs

@@ -16,3 +16,6 @@ pub use board::CheckerMove;
 
 mod dice;
 pub use dice::{Dice, DiceRoller};
+
+// python interface "trictrac_engine" (for AI training..)
+mod pyengine;

store/src/player.rs

@@ -1,9 +1,11 @@
+use pyo3::prelude::*;
 use serde::{Deserialize, Serialize};
 use std::fmt;
 
 // This just makes it easier to dissern between a player id and any ol' u64
 pub type PlayerId = u64;
 
+#[pyclass(eq, eq_int)]
 #[derive(Copy, Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
 pub enum Color {
     White,

store/src/pyengine.rs

@@ -0,0 +1,337 @@
+//! # Expose trictrac game state and rules in a python module
+use pyo3::prelude::*;
+use pyo3::types::PyDict;
+
+use crate::board::CheckerMove;
+use crate::dice::Dice;
+use crate::game::{GameEvent, GameState, Stage, TurnStage};
+use crate::game_rules_moves::MoveRules;
+use crate::game_rules_points::PointsRules;
+use crate::player::{Color, PlayerId};
+
+#[pyclass]
+struct TricTrac {
+    game_state: GameState,
+    dice_roll_sequence: Vec<(u8, u8)>,
+    current_dice_index: usize,
+}
+
+#[pymethods]
+impl TricTrac {
+    #[new]
+    fn new() -> Self {
+        let mut game_state = GameState::new(false); // schools_enabled = false
+
+        // Initialiser 2 joueurs
+        game_state.init_player("player1");
+        game_state.init_player("bot");
+
+        // Commencer la partie avec le joueur 1
+        game_state.consume(&GameEvent::BeginGame { goes_first: 1 });
+
+        TricTrac {
+            game_state,
+            dice_roll_sequence: Vec::new(),
+            current_dice_index: 0,
+        }
+    }
+
+    /// Obtenir l'état du jeu sous forme de chaîne de caractères compacte
+    fn get_state_id(&self) -> String {
+        self.game_state.to_string_id()
+    }
+
+    /// Obtenir l'état du jeu sous forme de dictionnaire pour faciliter l'entrainement
+    fn get_state_dict(&self) -> PyResult<Py<PyDict>> {
+        Python::with_gil(|py| {
+            let state_dict = PyDict::new(py);
+
+            // Informations essentielles sur l'état du jeu
+            state_dict.set_item("active_player", self.game_state.active_player_id)?;
+            state_dict.set_item("stage", format!("{:?}", self.game_state.stage))?;
+            state_dict.set_item("turn_stage", format!("{:?}", self.game_state.turn_stage))?;
+
+            // Dés
+            let (dice1, dice2) = self.game_state.dice.values;
+            state_dict.set_item("dice", (dice1, dice2))?;
+
+            // Points des joueurs
+            if let Some(white_player) = self.game_state.get_white_player() {
+                state_dict.set_item("white_points", white_player.points)?;
+                state_dict.set_item("white_holes", white_player.holes)?;
+            }
+
+            if let Some(black_player) = self.game_state.get_black_player() {
+                state_dict.set_item("black_points", black_player.points)?;
+                state_dict.set_item("black_holes", black_player.holes)?;
+            }
+
+            // Positions des pièces
+            let white_positions = self.get_checker_positions(Color::White);
+            let black_positions = self.get_checker_positions(Color::Black);
+
+            state_dict.set_item("white_positions", white_positions)?;
+            state_dict.set_item("black_positions", black_positions)?;
+
+            // État compact pour la comparaison d'états
+            state_dict.set_item("state_id", self.game_state.to_string_id())?;
+
+            Ok(state_dict.into())
+        })
+    }
+
+    /// Renvoie les positions des pièces pour un joueur spécifique
+    fn get_checker_positions(&self, color: Color) -> Vec<(usize, i8)> {
+        self.game_state.board.get_color_fields(color)
+    }
+
+    /// Obtenir la liste des mouvements légaux sous forme de paires (from, to)
+    fn get_available_moves(&self) -> Vec<((usize, usize), (usize, usize))> {
+        // L'agent joue toujours le joueur actif
+        let color = self
+            .game_state
+            .player_color_by_id(&self.game_state.active_player_id)
+            .unwrap_or(Color::White);
+
+        // Si ce n'est pas le moment de déplacer les pièces, retourner une liste vide
+        if self.game_state.turn_stage != TurnStage::Move
+            && self.game_state.turn_stage != TurnStage::HoldOrGoChoice
+        {
+            return vec![];
+        }
+
+        let rules = MoveRules::new(&color, &self.game_state.board, self.game_state.dice);
+        let possible_moves = rules.get_possible_moves_sequences(true, vec![]);
+
+        // Convertir les mouvements CheckerMove en tuples (from, to) pour Python
+        possible_moves
+            .into_iter()
+            .map(|(move1, move2)| {
+                (
+                    (move1.get_from(), move1.get_to()),
+                    (move2.get_from(), move2.get_to()),
+                )
+            })
+            .collect()
+    }
+
+    /// Jouer un coup ((from1, to1), (from2, to2))
+    fn play_move(&mut self, moves: ((usize, usize), (usize, usize))) -> bool {
+        let ((from1, to1), (from2, to2)) = moves;
+
+        // Vérifier que c'est au tour du joueur de jouer
+        if self.game_state.turn_stage != TurnStage::Move
+            && self.game_state.turn_stage != TurnStage::HoldOrGoChoice
+        {
+            return false;
+        }
+
+        let move1 = CheckerMove::new(from1, to1).unwrap_or_default();
+        let move2 = CheckerMove::new(from2, to2).unwrap_or_default();
+
+        let event = GameEvent::Move {
+            player_id: self.game_state.active_player_id,
+            moves: (move1, move2),
+        };
+
+        // Vérifier si le mouvement est valide
+        if !self.game_state.validate(&event) {
+            return false;
+        }
+
+        // Exécuter le mouvement
+        self.game_state.consume(&event);
+
+        // Si l'autre joueur doit lancer les dés maintenant, simuler ce lancement
+        if self.game_state.turn_stage == TurnStage::RollDice {
+            self.roll_dice();
+        }
+
+        true
+    }
+
+    /// Lancer les dés (soit aléatoirement, soit en utilisant une séquence prédéfinie)
+    fn roll_dice(&mut self) -> (u8, u8) {
+        // Vérifier que c'est au bon moment pour lancer les dés
+        if self.game_state.turn_stage != TurnStage::RollDice
+            && self.game_state.turn_stage != TurnStage::RollWaiting
+        {
+            return self.game_state.dice.values;
+        }
+
+        // Simuler un lancer de dés
+        let dice_values = if !self.dice_roll_sequence.is_empty()
+            && self.current_dice_index < self.dice_roll_sequence.len()
+        {
+            // Utiliser la séquence prédéfinie
+            let dice = self.dice_roll_sequence[self.current_dice_index];
+            self.current_dice_index += 1;
+            dice
+        } else {
+            // Générer aléatoirement
+            (
+                (1 + (rand::random::<u8>() % 6)),
+                (1 + (rand::random::<u8>() % 6)),
+            )
+        };
+
+        // Envoyer les événements appropriés
+        let roll_event = GameEvent::Roll {
+            player_id: self.game_state.active_player_id,
+        };
+
+        if self.game_state.validate(&roll_event) {
+            self.game_state.consume(&roll_event);
+        }
+
+        let roll_result_event = GameEvent::RollResult {
+            player_id: self.game_state.active_player_id,
+            dice: Dice {
+                values: dice_values,
+            },
+        };
+
+        if self.game_state.validate(&roll_result_event) {
+            self.game_state.consume(&roll_result_event);
+        }
+
+        dice_values
+    }
+
+    /// Marquer des points
+    fn mark_points(&mut self, points: u8) -> bool {
+        // Vérifier que c'est au bon moment pour marquer des points
+        if self.game_state.turn_stage != TurnStage::MarkPoints
+            && self.game_state.turn_stage != TurnStage::MarkAdvPoints
+        {
+            return false;
+        }
+
+        let event = GameEvent::Mark {
+            player_id: self.game_state.active_player_id,
+            points,
+        };
+
+        // Vérifier si l'événement est valide
+        if !self.game_state.validate(&event) {
+            return false;
+        }
+
+        // Exécuter l'événement
+        self.game_state.consume(&event);
+
+        // Si l'autre joueur doit lancer les dés maintenant, simuler ce lancement
+        if self.game_state.turn_stage == TurnStage::RollDice {
+            self.roll_dice();
+        }
+
+        true
+    }
+
+    /// Choisir de "continuer" (Go) après avoir gagné un trou
+    fn choose_go(&mut self) -> bool {
+        // Vérifier que c'est au bon moment pour choisir de continuer
+        if self.game_state.turn_stage != TurnStage::HoldOrGoChoice {
+            return false;
+        }
+
+        let event = GameEvent::Go {
+            player_id: self.game_state.active_player_id,
+        };
+
+        // Vérifier si l'événement est valide
+        if !self.game_state.validate(&event) {
+            return false;
+        }
+
+        // Exécuter l'événement
+        self.game_state.consume(&event);
+
+        // Simuler le lancer de dés pour le prochain tour
+        self.roll_dice();
+
+        true
+    }
+
+    /// Calcule les points maximaux que le joueur actif peut obtenir avec les dés actuels
+    fn calculate_points(&self) -> u8 {
+        let active_player = self
+            .game_state
+            .players
+            .get(&self.game_state.active_player_id);
+
+        if let Some(player) = active_player {
+            let dice_roll_count = player.dice_roll_count;
+            let color = player.color;
+
+            let points_rules =
+                PointsRules::new(&color, &self.game_state.board, self.game_state.dice);
+            let (points, _) = points_rules.get_points(dice_roll_count);
+
+            points
+        } else {
+            0
+        }
+    }
+
+    /// Réinitialise la partie
+    fn reset(&mut self) {
+        self.game_state = GameState::new(false);
+
+        // Initialiser 2 joueurs
+        self.game_state.init_player("player1");
+        self.game_state.init_player("bot");
+
+        // Commencer la partie avec le joueur 1
+        self.game_state
+            .consume(&GameEvent::BeginGame { goes_first: 1 });
+
+        // Réinitialiser l'index de la séquence de dés
+        self.current_dice_index = 0;
+    }
+
+    /// Vérifie si la partie est terminée
+    fn is_done(&self) -> bool {
+        self.game_state.stage == Stage::Ended || self.game_state.determine_winner().is_some()
+    }
+
+    /// Obtenir le gagnant de la partie
+    fn get_winner(&self) -> Option<PlayerId> {
+        self.game_state.determine_winner()
+    }
+
+    /// Obtenir le score du joueur actif (nombre de trous)
+    fn get_score(&self, player_id: PlayerId) -> i32 {
+        if let Some(player) = self.game_state.players.get(&player_id) {
+            player.holes as i32
+        } else {
+            -1
+        }
+    }
+
+    /// Obtenir l'ID du joueur actif
+    fn get_active_player_id(&self) -> PlayerId {
+        self.game_state.active_player_id
+    }
+
+    /// Définir une séquence de dés à utiliser (pour la reproductibilité)
+    fn set_dice_sequence(&mut self, sequence: Vec<(u8, u8)>) {
+        self.dice_roll_sequence = sequence;
+        self.current_dice_index = 0;
+    }
+
+    /// Afficher l'état du jeu (pour le débogage)
+    fn __str__(&self) -> String {
+        format!("{}", self.game_state)
+    }
+}
+
+/// A Python module implemented in Rust. The name of this function must match
+/// the `lib.name` setting in the `Cargo.toml`, else Python will not be able to
+/// import the module.
+#[pymodule]
+fn store(m: &Bound<'_, PyModule>) -> PyResult<()> {
+    m.add_class::<TricTrac>()?;
+
+    Ok(())
+}