Refaire Undo

src/Main.java

@@ -1,5 +1,26 @@
+import java.util.Iterator;
+
+import fr.iut_fbleau.raw_api_body.entity.*;
+
 public class Main {
     public static void main(String[] args) {
-        System.out.println("Hello world!");
+        PlateauNim jeu = new PlateauNim(5, Player.JOUEUR1);
+        jeu.doPly(new NimPly(2)); 
+        jeu.doPly(new NimPly(1)); 
+        jeu.doPly(new NimPly(1)); 
+        jeu.doPly(new NimPly(1)); 
+        if (jeu.isFinished()) {
+            int resultat = jeu.getResult();
+            if (resultat == Result.PERDU) {
+                System.out.println("Le joueur 1 a perdu !");
+            } else if (resultat == Result.GAGNE) {
+                System.out.println("Le joueur 1 a gagné !");
+            } else {
+                System.out.println("Égalité !");
+            }
+        }
+        else {
+            System.out.println("C'est pas fini : " + jeu.isFinished());
+        }
     }
 }

src/fr/iut_fbleau/raw_api_body/entity/NimPly.java

@@ -0,0 +1,24 @@
+package fr.iut_fbleau.raw_api_body.entity;
+
+/**
+ * Represents a move in the Nim game.
+ */
+public class NimPly extends Ply {
+    private final int allumettes;
+
+    // Constructor to initialize the move with a number of allumettes to remove
+    public NimPly(int allumettes) {
+        this.allumettes = allumettes;
+    }
+
+    // Returns the number of allumettes removed
+    public int getallumettes() {
+        return allumettes;
+    }
+
+
+    @Override
+    public String toString() {
+        return "Remove " + allumettes + " allumettes.";
+    }
+}

src/fr/iut_fbleau/raw_api_body/entity/PlateauNim.java

@@ -0,0 +1,108 @@
+package fr.iut_fbleau.raw_api_body.entity;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+/**
+ * Implements the Plateau interface for the game of Nim.
+ */
+public class PlateauNim implements Plateau {
+
+    private int allumettesRestantes; // Number of remaining allumettes
+    private Player currentPlayer; // Current player
+    private boolean gameFinished; // Game status
+    private int result; // Game result: 1 (win), 0 (draw), -1 (loss)
+    private List<Ply> playHistory; // History of moves
+
+    // Constructor initializes the game with a given number of allumettes and a starting player
+    public PlateauNim(int initialallumettes, Player startingPlayer) {
+        this.allumettesRestantes = initialallumettes;
+        this.currentPlayer = startingPlayer;
+        this.gameFinished = false;
+        this.result = 0;
+        this.playHistory = new ArrayList<>();
+    }
+
+    @Override
+    public Player getPlayer() {
+        if (gameFinished) {
+            throw new NullPointerException("Game is over.");
+        }
+        return this.currentPlayer;
+    }
+
+    @Override
+    public boolean isFinished() {
+        return this.gameFinished;
+    }
+
+    @Override
+    public int getResult() {
+        if (!gameFinished) {
+            throw new NullPointerException("Game is not over.");
+        }
+        return this.result;
+    }
+
+    @Override
+    public Iterator<Ply> givePlies() {
+        if (gameFinished) {
+            throw new NullPointerException("Game is over.");
+        }
+        // Generate legal moves (remove 1, 2, or 3 allumettes, but not more than remaining allumettes)
+        List<Ply> legalPlies = new ArrayList<>();
+        for (int i = 1; i <= Math.min(3, allumettesRestantes); i++) {
+            legalPlies.add(new NimPly(i));
+        }
+        return legalPlies.iterator();
+    }
+
+    @Override
+    public void doPly(Ply ply) {
+        if (!(ply instanceof NimPly)) {
+            throw new IllegalArgumentException("Invalid move type.");
+        }
+        NimPly nimPly = (NimPly) ply;
+
+        if (nimPly.getallumettes() < 1 || nimPly.getallumettes() > Math.min(3, allumettesRestantes)) {
+            throw new IllegalArgumentException("Invalid move.");
+        }
+
+        // Update the state
+        allumettesRestantes -= nimPly.getallumettes();
+        playHistory.add(nimPly);
+
+        // Check if game is finished
+        if (allumettesRestantes == 0) {
+            gameFinished = true;
+            if (this.currentPlayer == Player.JOUEUR1){
+                result = -1; // Player 2 Win
+            }
+            else{
+                result = 1; // Player 1 Win
+            }
+        } else {
+            // Switch players if game is not finished
+            currentPlayer = (currentPlayer == Player.JOUEUR1) ? Player.JOUEUR2 : Player.JOUEUR1;
+        }
+    }
+
+    @Override
+    public void undoPly(Ply ply) {
+        if (playHistory.isEmpty()) {
+            throw new IllegalStateException("No moves to undo.");
+        }
+        if (!playHistory.get(playHistory.size() - 1).equals(ply)) {
+            throw new IllegalStateException("Cannot undo a non-last move.");
+        }
+
+        // Revert the move
+        NimPly lastMove = (NimPly) playHistory.remove(playHistory.size() - 1);
+        allumettesRestantes += lastMove.getallumettes();
+
+        // Switch back to previous player
+        currentPlayer = (currentPlayer == Player.JOUEUR1) ? Player.JOUEUR2 : Player.JOUEUR1;
+        gameFinished = false; // If game was finished, it's no longer
+    }
+}