definable size for arena

javaAPI/arena_results.csv

@@ -0,0 +1,7 @@
+Bot 1, Bot 2, Winner
+RandomBot,MiniMaxBot,WIN
+RandomBot,HeuristicBot,WIN
+RandomBot,MonteCarloBot,WIN
+MiniMaxBot,HeuristicBot,WIN
+MiniMaxBot,MonteCarloBot,WIN
+HeuristicBot,MonteCarloBot,WIN

javaAPI/fr/iut_fbleau/HexGame/Arena.java

@@ -0,0 +1,64 @@
+package fr.iut_fbleau.HexGame;
+
+import fr.iut_fbleau.GameAPI.*;
+
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.EnumMap;
+import java.util.List;
+
+public class Arena {
+
+    private List<AbstractGamePlayer> bots = new ArrayList<>();
+    private FileWriter csvWriter;
+    private int board_size;
+
+    public Arena(int size) {
+        try {
+            csvWriter = new FileWriter("arena_results.csv");
+            csvWriter.append("Bot 1, Bot 2, Winner\n");
+            this.board_size = size;
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public void addBot(AbstractGamePlayer bot) {
+        bots.add(bot);
+    }
+
+    public void run() {
+        for (int i = 0; i < bots.size(); i++) {
+            for (int j = i + 1; j < bots.size(); j++) {
+                AbstractGamePlayer bot1 = bots.get(i);
+                AbstractGamePlayer bot2 = bots.get(j);
+
+                System.out.println("Running match: " + bot1.getClass().getSimpleName() + " vs " + bot2.getClass().getSimpleName());
+                Result result = playMatch(bot1, bot2);
+
+                try {
+                    csvWriter.append(bot1.getClass().getSimpleName() + "," + bot2.getClass().getSimpleName() + "," + result + "\n");
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+
+        try {
+            csvWriter.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private Result playMatch(AbstractGamePlayer bot1, AbstractGamePlayer bot2) {
+        IBoard board = new HexBoard(this.board_size);
+        EnumMap<Player, AbstractGamePlayer> players = new EnumMap<>(Player.class);
+        players.put(Player.PLAYER1, bot1);
+        players.put(Player.PLAYER2, bot2);
+
+        Simulation simulation = new Simulation(board, players);
+        return simulation.run();
+    }
+}

javaAPI/fr/iut_fbleau/HexGame/ArenaMain.java

@@ -0,0 +1,19 @@
+package fr.iut_fbleau.HexGame;
+
+import fr.iut_fbleau.GameAPI.Player;
+
+public class ArenaMain {
+    public static void main(String[] args) {
+        int size = 7;
+        if (args.length >= 1) {
+            try { size = Integer.parseInt(args[0]); } catch (NumberFormatException ignored) {}
+        }
+        Arena arena = new Arena(size);
+        arena.addBot(new RandomBot(Player.PLAYER1, 12345L));  // Correct constructor usage
+        arena.addBot(new MiniMaxBot(Player.PLAYER2));
+        arena.addBot(new HeuristicBot(Player.PLAYER1));
+        arena.addBot(new MonteCarloBot(Player.PLAYER2));  // Correct constructor usage
+
+        arena.run();
+    }
+}

javaAPI/fr/iut_fbleau/HexGame/HeuristicBot.java

@@ -0,0 +1,49 @@
+package fr.iut_fbleau.HexGame;
+
+import fr.iut_fbleau.GameAPI.*;
+
+public class HeuristicBot extends AbstractGamePlayer {
+
+    public HeuristicBot(Player me) {
+        super(me);  // Correct constructor usage
+    }
+
+    @Override
+    public AbstractPly giveYourMove(IBoard board) {
+        HexBoard hb = (HexBoard) board;
+        float bestScore = -Float.MAX_VALUE;
+        HexPly bestMove = null;
+
+        for (int i = 0; i < hb.getSize(); i++) {
+            for (int j = 0; j < hb.getSize(); j++) {
+                HexPly move = new HexPly(hb.getCurrentPlayer(), i, j);
+                if (hb.isLegal(move)) {
+                    hb.doPly(move);
+                    float score = evaluateBoard(hb);
+                    if (score > bestScore) {
+                        bestScore = score;
+                        bestMove = move;
+                    }
+                    hb.undoPly();
+                }
+            }
+        }
+        return bestMove;
+    }
+
+    private float evaluateBoard(HexBoard board) {
+        int size = board.getSize();
+        int center = size / 2;
+        float score = 0;
+        //HexBoard simBoard = (HexBoard) board.safeCopy();
+
+        for (int i = 0; i < size; i++) {
+            for (int j = 0; j < size; j++) {
+                if (board.getCellPlayer(i, j) == Player.PLAYER1) {
+                    score += Math.abs(i - center) + Math.abs(j - center); // Distance from center
+                }
+            }
+        }
+        return score;
+    }
+}

javaAPI/fr/iut_fbleau/HexGame/HexBoard.java

@@ -308,4 +308,10 @@ public class HexBoard extends AbstractBoard {
         sb.append("Current player: ").append(getCurrentPlayer()).append("\n");
         return sb.toString();
     }
+
+
+    public Player getCellPlayer(int r, int c) {
+    return cells[r][c];
+    }
+
 }

javaAPI/fr/iut_fbleau/HexGame/HexFrame.java

@@ -0,0 +1,52 @@
+package fr.iut_fbleau.HexGame;
+
+import fr.iut_fbleau.GameAPI.Player;
+import fr.iut_fbleau.GameAPI.Result;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class HexFrame {
+
+    public static void main(String[] args) {
+        SwingUtilities.invokeLater(() -> {
+            int size = 11;
+            if (args.length >= 1) {
+                try { size = Integer.parseInt(args[0]); } catch (NumberFormatException ignored) {}
+            }
+
+            HexBoard board = new HexBoard(size);
+
+            JFrame frame = new JFrame("Hex - " + size + "x" + size);
+            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+            frame.setLayout(new BorderLayout());
+
+            JLabel statusLabel = new JLabel("", SwingConstants.CENTER);
+            statusLabel.setFont(statusLabel.getFont().deriveFont(Font.BOLD, 18f));
+            statusLabel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
+
+            HexPanel panel = new HexPanel(board, statusLabel);
+
+            frame.add(statusLabel, BorderLayout.NORTH);
+            frame.add(panel, BorderLayout.CENTER);
+
+            // Taille confortable
+            frame.pack();
+            frame.setLocationRelativeTo(null);
+            frame.setVisible(true);
+
+            // Message initial
+            updateStatus(board, statusLabel);
+        });
+    }
+
+    static void updateStatus(HexBoard board, JLabel statusLabel) {
+        if (board.isGameOver()) {
+            Result r = board.getResult(); // résultat du point de vue PLAYER1
+            Player winner = (r == Result.WIN) ? Player.PLAYER1 : Player.PLAYER2;
+            statusLabel.setText("" + winner + " a gagné !");
+        } else {
+            statusLabel.setText("C'est à " + board.getCurrentPlayer() + " de jouer");
+        }
+    }
+}

javaAPI/fr/iut_fbleau/HexGame/HexPanel.java

@@ -0,0 +1,166 @@
+package fr.iut_fbleau.HexGame;
+
+import fr.iut_fbleau.GameAPI.Player;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.awt.geom.Path2D;
+
+/**
+ * Panel Swing qui dessine un plateau Hex en hexagones et gère les clics.
+ *
+ * Grille "flat-top" (hexagones à sommet plat en haut),
+ * avec décalage vertical d'une demi-hauteur une colonne sur deux.
+ */
+public class HexPanel extends JPanel {
+
+    private final HexBoard board;
+    private final JLabel statusLabel;
+
+    // Rayon (distance centre -> sommet)
+    private final int s = 26;
+    private final int margin = 40;
+    // pointy-top : largeur = sqrt(3)*s, hauteur = 2*s
+    private final double hexW = Math.sqrt(3) * s;
+    private final double hexVStep = 1.5 * s; // distance verticale entre centres
+
+
+    private Shape[][] hexShapes;
+
+    public HexPanel(HexBoard board, JLabel statusLabel) {
+        this.board = board;
+        this.statusLabel = statusLabel;
+        this.hexShapes = new Shape[board.getSize()][board.getSize()];
+
+        setBackground(Color.WHITE);
+
+        addMouseListener(new MouseAdapter() {
+            @Override
+            public void mouseClicked(MouseEvent e) {
+                handleClick(e.getX(), e.getY());
+            }
+        });
+    }
+
+    @Override
+    public Dimension getPreferredSize() {
+        int n = board.getSize();
+
+        // largeur : n * hexW + décalage max (hexW/2) + marges
+        int w = margin * 2 + (int) (n * hexW + hexW / 2);
+
+        // hauteur : (n-1)*1.5*s + 2*s + marges
+        int h = margin * 2 + (int) ((n - 1) * hexVStep + 2 * s);
+
+        return new Dimension(w, h);
+    }
+
+
+    private void handleClick(int x, int y) {
+        if (board.isGameOver()) return;
+
+        int n = board.getSize();
+        for (int row = 0; row < n; row++) {
+            for (int col = 0; col < n; col++) {
+                Shape sh = hexShapes[row][col];
+                if (sh != null && sh.contains(x, y)) {
+                    HexPly ply = new HexPly(board.getCurrentPlayer(), row, col);
+                    if (board.isLegal(ply)) {
+                        board.doPly(ply);
+                        HexFrame.updateStatus(board, statusLabel);
+                        repaint();
+                    } else {
+                        Toolkit.getDefaultToolkit().beep();
+                    }
+                    return;
+                }
+            }
+        }
+    }
+
+    @Override
+    protected void paintComponent(Graphics g) {
+        super.paintComponent(g);
+
+        Graphics2D g2 = (Graphics2D) g.create();
+        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+
+        // Bordures objectifs (bleu gauche/droite, rouge haut/bas)
+        drawGoalBorders(g2);
+
+        int n = board.getSize();
+
+        // IMPORTANT : boucles cohérentes -> row puis col
+        for (int row = 0; row < n; row++) {
+            for (int col = 0; col < n; col++) {
+
+                Shape hex = createHexShape(row, col);
+                hexShapes[row][col] = hex;
+
+                Player p = board.getCellPlayer(row, col);
+                g2.setColor(colorForCell(p));
+                g2.fill(hex);
+
+                g2.setColor(new Color(120, 120, 120));
+                g2.setStroke(new BasicStroke(1.2f));
+                g2.draw(hex);
+            }
+        }
+
+        g2.dispose();
+    }
+
+    private Color colorForCell(Player p) {
+        if (p == Player.PLAYER1) return new Color(30, 90, 160); // bleu
+        if (p == Player.PLAYER2) return new Color(220, 50, 50); // rouge
+        return new Color(190, 190, 190); // gris
+    }
+
+    /**
+    * Pointy-top + décalage par ligne :
+    *
+    * centreX = margin + hexW/2 + col*hexW + (row%2)*(hexW/2)
+    * centreY = margin + s + row*(1.5*s)
+    */
+    private Shape createHexShape(int row, int col) {
+        double cx = margin + (hexW / 2.0) + col * hexW + ((row % 2) * (hexW / 2.0));
+        double cy = margin + s + row * hexVStep;
+
+        Path2D.Double path = new Path2D.Double();
+        for (int i = 0; i < 6; i++) {
+            double angle = Math.toRadians(i * 60); // pointy-top
+            double x = cx + s * Math.cos(angle);
+            double y = cy + s * Math.sin(angle);
+            if (i == 0) path.moveTo(x, y);
+            else path.lineTo(x, y);
+        }
+        path.closePath();
+        return path;
+    }
+
+
+    private void drawGoalBorders(Graphics2D g2) {
+        int n = board.getSize();
+
+        double leftX = margin - 12;
+        double rightX = margin + (hexW / 2.0) + (n - 1) * hexW + (hexW / 2.0) + (hexW / 2.0) + 12;
+        // explication: largeur n colonnes + potentiel décalage d'une demi-largeur
+
+        double topY = margin - 12;
+        double bottomY = margin + s + (n - 1) * hexVStep + s + 12;
+
+        g2.setStroke(new BasicStroke(6f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
+
+        // Bleu: gauche / droite (objectif PLAYER1)
+        g2.setColor(new Color(30, 90, 160));
+        g2.drawLine((int) leftX, (int) topY, (int) leftX, (int) bottomY);
+        g2.drawLine((int) rightX, (int) topY, (int) rightX, (int) bottomY);
+
+        // Rouge: haut / bas (objectif PLAYER2)
+        g2.setColor(new Color(220, 50, 50));
+        g2.drawLine((int) leftX, (int) topY, (int) rightX, (int) topY);
+        g2.drawLine((int) leftX, (int) bottomY, (int) rightX, (int) bottomY);
+    }
+}

javaAPI/fr/iut_fbleau/HexGame/HexSimMain.java

@@ -0,0 +1,217 @@
+package fr.iut_fbleau.HexGame;
+
+import fr.iut_fbleau.GameAPI.*;
+
+import java.io.BufferedWriter;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.EnumMap;
+import java.util.Random;
+
+/**
+ * Lance un grand nombre de parties Hex entre 2 bots aléatoires et affiche des stats.
+ *
+ * Exemples :
+ *   java fr.iut_fbleau.HexGame.HexSimMain
+ *   java fr.iut_fbleau.HexGame.HexSimMain --games 10000 --size 7 --seed 123
+ *   java fr.iut_fbleau.HexGame.HexSimMain --games 5000 --size 11 --csv results.csv
+ * 
+ * À seed identique, la suite de nombres
+ * pseudo-aléatoires générée est identique, donc les bots "aléatoires" joueront les mêmes coups
+ * dans le même ordre (tant que le code et l'ordre des appels à Random ne changent pas).</p>
+ *
+ * Intérêt :
+ *
+ * Reproductibilité</b> : relancer exactement la même simulation pour déboguer / analyser.</li>
+ * Comparaison équitable</b> : comparer 2 bots sur les mêmes tirages aléatoires.</li>
+ * Si aucun seed n'est fourni, on utilise généralement l'heure courante, ce qui rend chaque exécution différente.</p>
+ *
+ * long seed;
+ * 
+ */
+public class HexSimMain {
+
+    private static class Stats {
+        long win = 0;
+        long draw = 0;
+        long loss = 0;
+
+        long totalMoves = 0;
+        long minMoves = Long.MAX_VALUE;
+        long maxMoves = Long.MIN_VALUE;
+
+        void record(Result r, int moves) {
+            if (r == Result.WIN) win++;
+            else if (r == Result.DRAW) draw++;
+            else if (r == Result.LOSS) loss++;
+            totalMoves += moves;
+            minMoves = Math.min(minMoves, moves);
+            maxMoves = Math.max(maxMoves, moves);
+        }
+
+        long games() { return win + draw + loss; }
+
+        double winRate() { return games() == 0 ? 0.0 : (double) win / games(); }
+        double drawRate() { return games() == 0 ? 0.0 : (double) draw / games(); }
+        double lossRate() { return games() == 0 ? 0.0 : (double) loss / games(); }
+        double avgMoves() { return games() == 0 ? 0.0 : (double) totalMoves / games(); }
+
+        @Override
+        public String toString() {
+            StringBuilder sb = new StringBuilder();
+            sb.append("Games: ").append(games()).append("\n");
+            sb.append("WIN:  ").append(win).append(String.format(" (%.2f%%)\n", 100.0 * winRate()));
+            sb.append("DRAW: ").append(draw).append(String.format(" (%.2f%%)\n", 100.0 * drawRate()));
+            sb.append("LOSS: ").append(loss).append(String.format(" (%.2f%%)\n", 100.0 * lossRate()));
+            sb.append(String.format("Moves: avg=%.2f, min=%d, max=%d\n", avgMoves(), minMoves, maxMoves));
+            return sb.toString();
+        }
+    }
+
+    private static class Args {
+        int size = 7;
+        int games = 1000;
+        long seed = System.currentTimeMillis();
+        int progressEvery = 0;     // 0 = pas de progress
+        String csvPath = null;     // si non null, export par partie
+    }
+
+    public static void main(String[] args) {
+        Args a = parseArgs(args);
+
+        System.out.println("Hex random-vs-random simulation");
+        System.out.println("  size=" + a.size + " games=" + a.games + " seed=" + a.seed +
+                (a.csvPath != null ? " csv=" + a.csvPath : ""));
+
+        Random master = new Random(a.seed);
+        Stats stats = new Stats();
+
+        BufferedWriter csv = null;
+        try {
+            if (a.csvPath != null) {
+                csv = new BufferedWriter(new FileWriter(a.csvPath));
+                csv.write("game_index,result_p1,moves\n");
+            }
+
+            for (int i = 0; i < a.games; i++) {
+                // Nouveau plateau, nouveaux bots (seeds dérivés du seed principal)
+                HexBoard board = new HexBoard(a.size);
+
+                EnumMap<Player, AbstractGamePlayer> players = new EnumMap<>(Player.class);
+                players.put(Player.PLAYER1, new RandomBot(Player.PLAYER1, new Random(master.nextLong())));
+                players.put(Player.PLAYER2, new RandomBot(Player.PLAYER2, new Random(master.nextLong())));
+
+                int moves = runOneGame(board, players);
+
+                Result res = board.getResult();
+                stats.record(res, moves);
+
+                if (csv != null) {
+                    csv.write(i + "," + res + "," + moves + "\n");
+                }
+
+                if (a.progressEvery > 0 && (i + 1) % a.progressEvery == 0) {
+                    System.out.println("Progress: " + (i + 1) + "/" + a.games);
+                }
+            }
+
+            System.out.println("\n=== SUMMARY (Result is from PLAYER1 perspective) ===");
+            System.out.println(stats);
+
+        } catch (IOException e) {
+            System.err.println("I/O error: " + e.getMessage());
+            e.printStackTrace();
+        } finally {
+            if (csv != null) {
+                try { csv.close(); } catch (IOException ignored) {}
+            }
+        }
+    }
+
+    /**
+     * Boucle de jeu (même logique que AbstractGame.run, mais on compte les coups).
+     * On ne modifie pas GameAPI.
+     */
+    private static int runOneGame(IBoard board, EnumMap<Player, AbstractGamePlayer> players) {
+        int moves = 0;
+        int guardMaxMoves = ((HexBoard) board).getSize() * ((HexBoard) board).getSize(); // au pire : plateau rempli
+
+        while (!board.isGameOver()) {
+            AbstractGamePlayer p = players.get(board.getCurrentPlayer());
+            IBoard safe = board.safeCopy();
+            AbstractPly ply = p.giveYourMove(safe);
+
+            if (!board.isLegal(ply)) {
+                throw new IllegalStateException("Illegal move: " + ply + " by " + board.getCurrentPlayer());
+            }
+            board.doPly(ply);
+            moves++;
+
+            if (moves > guardMaxMoves) {
+                throw new IllegalStateException("Too many moves (" + moves + "), something is wrong.");
+            }
+        }
+        return moves;
+    }
+
+    private static Args parseArgs(String[] args) {
+        Args a = new Args();
+        for (int i = 0; i < args.length; i++) {
+            String s = args[i];
+            switch (s) {
+                case "--size":
+                    a.size = Integer.parseInt(nextArg(args, ++i, "--size requires a value"));
+                    break;
+                case "--games":
+                    a.games = Integer.parseInt(nextArg(args, ++i, "--games requires a value"));
+                    break;
+                case "--seed":
+                    a.seed = Long.parseLong(nextArg(args, ++i, "--seed requires a value"));
+                    break;
+                case "--progress":
+                    a.progressEvery = Integer.parseInt(nextArg(args, ++i, "--progress requires a value"));
+                    break;
+                case "--csv":
+                    a.csvPath = nextArg(args, ++i, "--csv requires a value");
+                    break;
+                case "--help":
+                case "-h":
+                    printHelpAndExit();
+                    break;
+                default:
+                    // compat: si l'utilisateur donne juste un nombre, on l'interprète comme size ou games
+                    // ex: "7 10000"
+                    if (isInt(s)) {
+                        int v = Integer.parseInt(s);
+                        if (a.size == 11) a.size = v;
+                        else a.games = v;
+                    } else {
+                        System.err.println("Unknown arg: " + s);
+                        printHelpAndExit();
+                    }
+            }
+        }
+        return a;
+    }
+
+    private static String nextArg(String[] args, int idx, String errMsg) {
+        if (idx < 0 || idx >= args.length) throw new IllegalArgumentException(errMsg);
+        return args[idx];
+    }
+
+    private static boolean isInt(String s) {
+        try { Integer.parseInt(s); return true; } catch (NumberFormatException e) { return false; }
+    }
+
+    private static void printHelpAndExit() {
+        System.out.println("Usage: java fr.iut_fbleau.HexGame.HexSimMain [options]\n" +
+                "Options:\n" +
+                "  --size N       Board size (default 7)\n" +
+                "  --games N      Number of games (default 1000)\n" +
+                "  --seed N       Random seed (default current time)\n" +
+                "  --progress N   Print progress every N games (default 0)\n" +
+                "  --csv FILE     Write per-game results to CSV\n" +
+                "  -h, --help     Show this help\n");
+        System.exit(0);
+    }
+}

javaAPI/fr/iut_fbleau/HexGame/MiniMaxBot.java

@@ -0,0 +1,89 @@
+package fr.iut_fbleau.HexGame;
+
+import fr.iut_fbleau.GameAPI.*;
+
+public class MiniMaxBot extends AbstractGamePlayer {
+
+    private int MAXDEPTH = 5;
+
+    public MiniMaxBot(Player me) {
+        super(me);  // Correct constructor usage
+    }
+
+    @Override
+    public AbstractPly giveYourMove(IBoard board) {
+        HexBoard hb = (HexBoard) board;
+        float bestScore = -Float.MAX_VALUE;
+        HexPly bestMove = null;
+
+        for (int i = 0; i < hb.getSize(); i++) {
+            for (int j = 0; j < hb.getSize(); j++) {
+                HexPly move = new HexPly(hb.getCurrentPlayer(), i, j);
+                if (hb.isLegal(move)) {
+                    hb.doPly(move);
+                    float score = minimax(hb, MAXDEPTH, -Float.MAX_VALUE, Float.MAX_VALUE, true);
+                    if (score > bestScore) {
+                        bestScore = score;
+                        bestMove = move;
+                    }
+                    hb.undoPly();
+                }
+            }
+        }
+        return bestMove;
+    }
+
+    private float minimax(HexBoard board, int depth, float alpha, float beta, boolean isMaximizing) {
+        if (depth == 0 || board.isGameOver()) {
+            return evaluateBoard(board);
+        }
+
+        if (isMaximizing) {
+            float bestScore = -Float.MAX_VALUE;
+            for (int i = 0; i < board.getSize(); i++) {
+                for (int j = 0; j < board.getSize(); j++) {
+                    HexPly move = new HexPly(board.getCurrentPlayer(), i, j);
+                    if (board.isLegal(move)) {
+                        board.doPly(move);
+                        float score = minimax(board, depth - 1, alpha, beta, false);
+                        bestScore = Math.max(bestScore, score);
+                        alpha = Math.max(alpha, bestScore);
+                        if (beta <= alpha) break; // Pruning
+                        board.undoPly();
+                    }
+                }
+            }
+            return bestScore;
+        } else {
+            float bestScore = Float.MAX_VALUE;
+            for (int i = 0; i < board.getSize(); i++) {
+                for (int j = 0; j < board.getSize(); j++) {
+                    HexPly move = new HexPly(board.getCurrentPlayer(), i, j);
+                    if (board.isLegal(move)) {
+                        board.doPly(move);
+                        float score = minimax(board, depth - 1, alpha, beta, true);
+                        bestScore = Math.min(bestScore, score);
+                        beta = Math.min(beta, bestScore);
+                        if (beta <= alpha) break; // Pruning
+                        board.undoPly();
+                    }
+                }
+            }
+            return bestScore;
+        }
+    }
+
+    private float evaluateBoard(HexBoard board) {
+        int size = board.getSize();
+        int center = size / 2;
+        int score = 0;
+        for (int i = 0; i < size; i++) {
+            for (int j = 0; j < size; j++) {
+                if (board.getCellPlayer(i, j) == Player.PLAYER1) {
+                    score += Math.abs(i - center) + Math.abs(j - center); // Distance from center
+                }
+            }
+        }
+        return score;
+    }
+}

javaAPI/fr/iut_fbleau/HexGame/MonteCarloBot.java

@@ -0,0 +1,59 @@
+package fr.iut_fbleau.HexGame;
+
+import fr.iut_fbleau.GameAPI.*;
+
+import java.util.Random;
+
+public class MonteCarloBot extends AbstractGamePlayer {
+
+    private static final int SIMULATION_COUNT = 1000;
+
+    public MonteCarloBot(Player me) {
+        super(me);  // Correct constructor usage
+    }
+
+    @Override
+    public AbstractPly giveYourMove(IBoard board) {
+        HexBoard hb = (HexBoard) board;
+        float bestScore = -Float.MAX_VALUE;
+        HexPly bestMove = null;
+
+        for (int i = 0; i < hb.getSize(); i++) {
+            for (int j = 0; j < hb.getSize(); j++) {
+                HexPly move = new HexPly(hb.getCurrentPlayer(), i, j);
+                if (hb.isLegal(move)) {
+                    hb.doPly(move);
+                    float score = monteCarloSimulation(hb);
+                    if (score > bestScore) {
+                        bestScore = score;
+                        bestMove = move;
+                    }
+                    hb.undoPly();
+                }
+            }
+        }
+        return bestMove;
+    }
+
+    private float monteCarloSimulation(HexBoard board) {
+        RandomBot simBot = new RandomBot(Player.PLAYER1, new Random().nextLong());
+        HexBoard simBoard = (HexBoard) board.safeCopy();
+        int wins = 0;
+        int simulations = 0;
+
+        for (int i = 0; i < SIMULATION_COUNT; i++) {
+            while (!simBoard.isGameOver()) {
+                AbstractPly move = simBot.giveYourMove(simBoard);
+                simBoard.doPly(move);
+            }
+
+            if (simBoard.getResult() == Result.WIN) {
+                wins++;
+            }
+            simulations++;
+            simBoard = (HexBoard) board.safeCopy(); // Reset the board for the next simulation
+        }
+
+        return (float) wins / simulations;
+    }
+}

javaAPI/fr/iut_fbleau/HexGame/Simulation.java

@@ -36,7 +36,6 @@ public class Simulation extends AbstractGame {
         float wins = 0;
         float losses = 0;
         int count = 0;
-
         for(int i=0; i<EVALDEPTH; i++){
             while(!simpos.isGameOver()){
                 count++;
@@ -58,12 +57,9 @@ public class Simulation extends AbstractGame {
             ctaken = taken;
             count = 0;
         }
-
         System.out.println("    wins : "+wins+"/losses : "+losses);
         System.out.println("    eval : "+(wins-losses)/EVALDEPTH);
-
         return (wins-losses)/EVALDEPTH;
-
     }
 
     private float explMAX(HexBoard position, int depth){
@@ -193,7 +189,6 @@ public class Simulation extends AbstractGame {
                 return bestcase;
         }
     }
-
     private float explMINAB(HexBoard position, int depth, float A, float B){
         if (position.getResult()==Result.LOSS) {
             return -1.0f;
@@ -241,6 +236,7 @@ public class Simulation extends AbstractGame {
 
        
 
+
     private AbstractPly GiveBestMove(IBoard board) {
         if (!(board instanceof HexBoard)) {
             throw new IllegalArgumentException("Ce joueur attend un HexBoard.");