doc

doc/blog/pourquoi-le-trictrac.md

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+# Pourquoi le trictrac
+
+Je vais montrer pourquoi il faut redécouvrir le trictrac, pourquoi il pourrait être votre nouveau jeu favori. 
+Je vais montrer pourquoi il est intéressant, complexe pour les humains comme les machines.
+En quoi il diffère du backgammon de manière avantageuse. Pourquoi il a quasiment disparu.
+
+Le backgammon était connu à la grande époque du trictrac. Il ne lui manquait que le dé doubleur, apparu au début du XXe siècle, qui a ajouté les prises de décision méta, que le trictrac possèdait déjà sur plusieurs niveaux (via la gestion des bredouilles en fin de partie par exemple).
+
+Le hasard des dés permet au joueur faible d'espérer la victoire même en fin de partie (cf. Le tour du monde en 80 jeux).

doc/refs/renet_echo.rs

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+use std::{
+    collections::HashMap,
+    net::{SocketAddr, UdpSocket},
+    sync::mpsc::{self, Receiver, TryRecvError},
+    thread,
+    time::{Duration, Instant, SystemTime},
+};
+
+use renet::{
+    transport::{
+        ClientAuthentication, NetcodeClientTransport, NetcodeServerTransport, ServerAuthentication, ServerConfig, NETCODE_USER_DATA_BYTES,
+    },
+    ClientId, ConnectionConfig, DefaultChannel, RenetClient, RenetServer, ServerEvent,
+};
+
+// Helper struct to pass an username in the user data
+struct Username(String);
+
+impl Username {
+    fn to_netcode_user_data(&self) -> [u8; NETCODE_USER_DATA_BYTES] {
+        let mut user_data = [0u8; NETCODE_USER_DATA_BYTES];
+        if self.0.len() > NETCODE_USER_DATA_BYTES - 8 {
+            panic!("Username is too big");
+        }
+        user_data[0..8].copy_from_slice(&(self.0.len() as u64).to_le_bytes());
+        user_data[8..self.0.len() + 8].copy_from_slice(self.0.as_bytes());
+
+        user_data
+    }
+
+    fn from_user_data(user_data: &[u8; NETCODE_USER_DATA_BYTES]) -> Self {
+        let mut buffer = [0u8; 8];
+        buffer.copy_from_slice(&user_data[0..8]);
+        let mut len = u64::from_le_bytes(buffer) as usize;
+        len = len.min(NETCODE_USER_DATA_BYTES - 8);
+        let data = user_data[8..len + 8].to_vec();
+        let username = String::from_utf8(data).unwrap();
+        Self(username)
+    }
+}
+
+fn main() {
+    env_logger::init();
+    println!("Usage: server [SERVER_PORT] or client [SERVER_ADDR] [USER_NAME]");
+    let args: Vec<String> = std::env::args().collect();
+
+    let exec_type = &args[1];
+    match exec_type.as_str() {
+        "client" => {
+            let server_addr: SocketAddr = args[2].parse().unwrap();
+            let username = Username(args[3].clone());
+            client(server_addr, username);
+        }
+        "server" => {
+            let server_addr: SocketAddr = format!("0.0.0.0:{}", args[2]).parse().unwrap();
+            server(server_addr);
+        }
+        _ => {
+            println!("Invalid argument, first one must be \"client\" or \"server\".");
+        }
+    }
+}
+
+const PROTOCOL_ID: u64 = 7;
+
+fn server(public_addr: SocketAddr) {
+    let connection_config = ConnectionConfig::default();
+    let mut server: RenetServer = RenetServer::new(connection_config);
+
+    let current_time = SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap();
+    let server_config = ServerConfig {
+        current_time,
+        max_clients: 64,
+        protocol_id: PROTOCOL_ID,
+        public_addresses: vec![public_addr],
+        authentication: ServerAuthentication::Unsecure,
+    };
+    let socket: UdpSocket = UdpSocket::bind(public_addr).unwrap();
+
+    let mut transport = NetcodeServerTransport::new(server_config, socket).unwrap();
+
+    let mut usernames: HashMap<ClientId, String> = HashMap::new();
+    let mut received_messages = vec![];
+    let mut last_updated = Instant::now();
+
+    loop {
+        let now = Instant::now();
+        let duration = now - last_updated;
+        last_updated = now;
+
+        server.update(duration);
+        transport.update(duration, &mut server).unwrap();
+
+        received_messages.clear();
+
+        while let Some(event) = server.get_event() {
+            match event {
+                ServerEvent::ClientConnected { client_id } => {
+                    let user_data = transport.user_data(client_id).unwrap();
+                    let username = Username::from_user_data(&user_data);
+                    usernames.insert(client_id, username.0);
+                    println!("Client {} connected.", client_id)
+                }
+                ServerEvent::ClientDisconnected { client_id, reason } => {
+                    println!("Client {} disconnected: {}", client_id, reason);
+                    usernames.remove_entry(&client_id);
+                }
+            }
+        }
+
+        for client_id in server.clients_id() {
+            while let Some(message) = server.receive_message(client_id, DefaultChannel::ReliableOrdered) {
+                let text = String::from_utf8(message.into()).unwrap();
+                let username = usernames.get(&client_id).unwrap();
+                println!("Client {} ({}) sent text: {}", username, client_id, text);
+                let text = format!("{}: {}", username, text);
+                received_messages.push(text);
+            }
+        }
+
+        for text in received_messages.iter() {
+            server.broadcast_message(DefaultChannel::ReliableOrdered, text.as_bytes().to_vec());
+        }
+
+        transport.send_packets(&mut server);
+        thread::sleep(Duration::from_millis(50));
+    }
+}
+
+fn client(server_addr: SocketAddr, username: Username) {
+    let connection_config = ConnectionConfig::default();
+    let mut client = RenetClient::new(connection_config);
+
+    let socket = UdpSocket::bind("127.0.0.1:0").unwrap();
+    let current_time = SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap();
+    let client_id = current_time.as_millis() as u64;
+    let authentication = ClientAuthentication::Unsecure {
+        server_addr,
+        client_id,
+        user_data: Some(username.to_netcode_user_data()),
+        protocol_id: PROTOCOL_ID,
+    };
+
+    let mut transport = NetcodeClientTransport::new(current_time, authentication, socket).unwrap();
+    let stdin_channel: Receiver<String> = spawn_stdin_channel();
+
+    let mut last_updated = Instant::now();
+    loop {
+        let now = Instant::now();
+        let duration = now - last_updated;
+        last_updated = now;
+
+        client.update(duration);
+        transport.update(duration, &mut client).unwrap();
+
+        if transport.is_connected() {
+            match stdin_channel.try_recv() {
+                Ok(text) => client.send_message(DefaultChannel::ReliableOrdered, text.as_bytes().to_vec()),
+                Err(TryRecvError::Empty) => {}
+                Err(TryRecvError::Disconnected) => panic!("Channel disconnected"),
+            }
+
+            while let Some(text) = client.receive_message(DefaultChannel::ReliableOrdered) {
+                let text = String::from_utf8(text.into()).unwrap();
+                println!("{}", text);
+            }
+        }
+
+        transport.send_packets(&mut client).unwrap();
+        thread::sleep(Duration::from_millis(50));
+    }
+}
+
+fn spawn_stdin_channel() -> Receiver<String> {
+    let (tx, rx) = mpsc::channel::<String>();
+    thread::spawn(move || loop {
+        let mut buffer = String::new();
+        std::io::stdin().read_line(&mut buffer).unwrap();
+        tx.send(buffer.trim_end().to_string()).unwrap();
+    });
+    rx
+}

doc/traité.md

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+En 12 chapitres (trous) de 12 sous-chapitres (points / niveaux de compréhension) ?
+
+Les règles
+- le matériel
+- le mouvement
+- les points
+- les écoles
+- les combinaisons
+
+
+La stratégie
+- probabilités
+- arbres de décision
+- l'entraînement
+
+L'encyclopédie
+- comparaison avec d'autres jeux
+  - échecs/go
+- histoire
+  - traités
+- vocabulaire
+- l'esthétique
+- l'étiquette
+- ressources web
+  - wikipedia
+  - l'encyclopédie des jeux + videos youtube
+  - le dictionnaire du trictrac
+- fabriquer un boîtier/plateau de jeu 
+- jouer en ligne